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Assessing Translation Quality of Polemical Texts | A Master of Arts thesis in Translation and Interpreting MATI (English/Arabic/English) by Ahmad S. Abdel Hady entitled, "Assessing Translation Quality of Polemical Texts," submitted in May 2015. Thesis advisor is Dr. Ahmed Ali. Soft and hard copy available. |
A Bidirectional Multiple Charge Transfer Active Pixel Image Sensor for Low-Power Focal Plane Motion Vector Estimation | This paper proposes a CMOS image sensor with high-speed non-destructive image sensing mode using bidirectional multiple charge transfer active pixels. The proposed image sensor is suitable for low-power focal plane motion vector estimation using iterative block matching while maintaining the image quality of video-rate (33ms/frame) pictures and the accuracy of the motion vector estimation. The performances of the bidirectional multiple charge transfer active pixel sensor are evaluated by circuit simulations and the proper operation of the sensor is confirmed by experiments. |
VVPS-32/19 and VVPS-20/11 Vibro-pressing Pile-sinking Machines, | Abstract : The VVPS 32 19 and VVPS 20 11 pile sinking machines have found wide use in industrial and civilian construction. Using the indicated assemblies is especially advisable in conditions where there is a lack of electricity, and also if it is necessary to drive piles in hemmed-in conditions. The automatic control of all mechanisms, the short time required for their conversion from the transport mode to the working mode and back again, their high abilities for movement, and the maneuverability of the vibro-pressing, pile sinking machines give them a great many advantages over other, imitative installations. The assembly is equipped with only one type of working device, the vibro-pressing pile sinker, which is attached to the suspension beam and flexibly attached to the guidance mechanisms on the boom strut. (Author) |
Size effect and statistics of fracture in random materials | Abstract We review the mathematical and microstructural foundations of fracture statistics and the associated size effect in the average tensile fracture strength of random materials. When the flaw population in a material has an algebraic tail, the fracture statistics are of a Weibull form and the size effect is algebraic. When the flaw population is exponential, the fracture statistics are of a new, “modified Gumbel form”, and the size effect is logarithmic. Most microstructural models with uncorrelated disorder are predicted to lie in the “modified Gumbel class”. We argue that the standard Gumbel form is a poor statistic to use in the analysis of tensile fracture. |
System and method for processing wireless files based on filename extension | A system and method for a computer network of the wireless file and binding processing of the communications infrastructure system or method. In one embodiment, the system includes: (1) receiving at least a portion of the wireless file and identifies the name of its file checker, and (2) modify the document processor of the wireless file based on the contents of the file name. "Wireless File" is defined as any file containing data communications. These data may form a data stream. Data may be audio, video or image data (user data) or may be wireless information (control data in the user data transfer used). |
Angiographic C-arm CT visualization of the Woven EndoBridge Cerebral Aneurysm Embolization Device (WEB): First Experience in an Animal Aneurysm Model | Introduction ::: Improvements in the imaging capabilities of angiographic C-arm computed tomography (CT) using flat detector angiographic (FD-CT) systems now provide a means for the in vivo visualization of devices used for the treatment of intracranial aneurysms. One such device, the WEB embolization device, is made of a braided mesh of nitinol wires, the size of which are near to the limits of visualization using conventional x-ray fluoroscopy. Our hypothesis was that the imaging of these implants C-arm CT would provide useful information regarding their positioning and deployment. |
THE ANALYSIS OF IMPLICATURE ON SURAH AL-A’RAAF’S TRANSLATION BY ABDULLAH YUSUF ALI | The findings of this study indicate that among 120 times, the speakers implied the implicature directly, which is direct match between a sentence type and its function is directly, and the rest is among 23 times, they expressed less directly, which is whenever there is no direct relationship between sentence type and its function. Moreover, among 75 dialogs, contained in 66 verses, 143 implicatures are implied, and there are 244 of the contribution maxims. In this study, Grice’s CP and its contributory maxims have been observed in the Surah Al A’raaf, in the most cases, the observing of Grice’s maxim is found in the maxim of quality and the least is manner. Based on the findings of the study, it is possible that more than one implicature are implied out of the same utterance and consequently more than one maxim or principles are involved. |
Mechanical Characteristics of Tissue Engineered Bone-Ligament-Bone Constructs Following ACL Replacement in Sheep | With approximately 400,000 reported each year, anterior crucial ligament (ACL) injuries are the most common injury in the US. Unfortunately current ACL replacement strategies, which involve using either allografts from cadavers or autografts from patients’ own patellar tendons (PT) or hamstring tendons as a replacement, have several limitations including graft availability, risk of rejection, increased morbidity and, more importantly, unmatched intra-articular biomechanical properties of grafts and ACL. The objective of this study is to use self-assembling, scaffold-less bone-ligament-bone (BLB) engineered tissue constructs as grafts in a sheep ACL repair model to characterize the biomechanical behaviors of native ACL, PT, and tissue engineered ligament and subsequently present a viable option of using tissue engineered ligament graft for ACL repair.Copyright © 2011 by ASME |
Method for preparing cobalt base alloy artificial joint taper-shank | The preparation process of cobalt base alloy artificial joint taper shank includes the main technological steps of: making mold; wax pressing-in and combination; making corundum casing adhered and reinforced with silica gel, casting at 1400-1600 and maintaining for 5-30 min via directional solidification in 5-10 mm/min drawing rate, cleaning and post-treatment. In the wax pressing-in and combination step, directional guiding section is designed to form a cone and the wax molds are so combined as to ensure the lengthwise of the formed joint taper shank perpendicular to the isothermal cross section in directional solidification. The technological process of present invention has high product quality and raised performance indexes of the product. |
Analysis of Power Categories Problems in National Undergraduate Electronic Design Contest | This article describes the power categories problems that often appear in National Undergraduate Electronic Design Contest, and gives a switching power supply design and power performance test results. Finally, the article summarizes the knowledge of power categories problems involved as well as the contents participants to master. |
The effect of chlorpromazine and Li2CO3 on the superoxide dismutase and glutathione peroxidase activities of rat brain, liver and erythrocytes. | The effect of the antipsychotic agents chlorpromazine (CPZ) and Li2CO3 on superoxide dismutase (SOD, EC 1.15.1.1) and glutathione peroxidase (GPx, EC 1.11.1.9) activities of brain, liver and erythrocyte of rats was investigated. The short-term treatment (7 days) either with CPZ (10 mg/kg body weight) or with Li2CO3 (2 mEq Li/kg body weight) did not affect enzymatic activities. In contrast, the long-term administration of CPZ (1 month) decreased the SOD activity in brain and erythrocytes while Li2CO3 had no effect. GPx activity and lipid peroxidation of brain and liver homogenates were not affected by either acute or chronic administration of these agents. |
Primary Study on Lactobacillus from vaginal of High-risk Females in STD | Objective:To compare the quantity and the protection function of Lactobacillus in the vagina between the high-risk females in STD and the healthy group,and evaluate its defense capability,in order to provide a theoretical basis for implementing the prevention and treatment interventions. Methods:71 healthy women and 120 high-risk females in STD were selected. The rate of vaginal Lactobacilli and its function of producing the organic acids,hydrogen peroxide(H2O2),and other antimicrobial substances in vaginal secretions were detected to quantify the number and defensive ability of Lactobacilli of high risk population. Results:The positive rate of Lactobacillus,and the protection of the high-risk females in STD were lower than the healthy group. Conclusion: Susceptibility of STD has an important relationship with the damage of the micro environment of vaginal,especially the reduction of the amount and defense ability of Lactobacillus |
Isometric embeddings and continuous maps onto the irrationals | Let \(f\,{:}\,E \rightarrow F\) be a continuous map of a complete separable metric space E onto the irrationals. We shall show that if a complete separable metric space M contains isometric copies of every closed relatively discrete set in E, then M contains also an isometric copy of some fiber \(f^{-1}(y)\). We shall show also that if all fibers of f have positive dimension, then the collection of closed zero-dimensional sets in E is non-analytic in the Wijsman hyperspace of E. These results, based on a classical Hurewicz’s theorem, refine some results from Pol and Pol (Isr J Math 209:187–197, 2015) and answer a question in Banakh et al. (in: Pearl (ed) Open problems in topology II. Elsevier, Amsterdam, 2007). |
Performance evaluation under noisy environment | Performance evaluation of computer systems has been done in many papers but not many have used a network communication model. This paper aims to address the throughput performance and message delay pattern under noisy environment with adaptive packet length. Three common protocols, stop and wait, ARQ and selective reject are chosen. The theoretical deduction taking into account the possibility of acknowledgment error and variable length is presented. The result is matched with the simulation package General Performance Simulation System (GPSSR/PC) that runs on IBM PC 80386. |
Application of Material Management Storage Model in Electric Power Business | Based on storage theory and combining with the characteristics of the North China Electric Power Company,the paper puts forward a material manag ement storage model including optimized purchasing tactics and optimized storage tactics for the Company and makes model analysis for the material management st orage process. |
Research Advances in Phosphine Fumigant Gas | The research advance in the toxicology on PH3 and insect resistance to PH3 in recent years was reviewed.In the paper,such as PH3 absorption by insects,the site where the PH3 reacted,and the effect of PH3 to different insects and different ages of insects were emphasized.At same time,the kinds of drug-fast insect,the behavior of insect resistance to PH3,and the measures to solve the problems were briefly discussed. |
Effects of a Phosphomimetic Mutant of RAP80 on Linear Polyubiquitin Binding Probed by Calorimetric Analysis | RAP80 plays a key role in DNA damage responses by recognizing K63-linked polyubiquitin moieties through its two ubiquitin-interacting motif (UIM) domains. The linker between the two UIMs possesses a phosphorylation site, but the relationship between phosphorylation and polyubiquitin recognition remains elusive. We investigated the interaction between a phosphorylation-mimic RAP80 mutant S101E and linear polyubiquitins, structurally equivalent to the K63-linked ones, using isothermal titration calorimetry (ITC). ITC analysis revealed differential binding affinities for linear tetraubiquitin by otherwise equivalent UIMs in S101E. Mutational analysis supported such differential polyubiquitin recognition by S101E. Our results suggest a potential crosstalk between polyubiquitin recognition and phosphorylation in RAP80. |
Associative synthesis of finite state automata model of a controlled object with hyperdimensional computing | The main contribution of this paper is a study of the applicability of hyperdimensional computing and learning with an associative memory for modeling the dynamics of complex automation systems. Specifically, the problem of learning an evidence-based model of a plant in a distributed automation and control system is considered. The model is learned in the form a finite state automata. |
Forecasting Renewable Energy for Grid Operations | Forecasting of renewable energy takes on an increasingly important role in the power grid with the rapid expansion of wind and solar energy. We discuss the potential applications of renewable energy forecasts for system operators, renewable power producers, and other participants in the electricity market, and give a brief overview of forecasting methods for wind and solar energy. Whereas further improvements in point forecast accuracy is certainly desirable, we argue that good estimates of forecast uncertainty is also of major importance to better handle renewable energy in grid operations. Looking ahead, we conclude that improved forecasting systems and corresponding decision support tools are key solutions to enable a clean, reliability, and cost efficient future electricity grid driven by renewable resources. |
SPATIAL DEPENDENCE INDEX FOR CUBIC, PENTASPHERICAL AND WAVE SEMIVARIOGRAM MODELS | This study aims to propose a spatial dependence index (and its classification), from the concept of spatial correlation areas, for the Cubic, Pentaspherical and Wave models. The index, called Spatial Dependence Index (SDI), covers the following parameters: the range (𝑎), the nugget effect (𝐶0) and the contribution (𝐶1), beyond considering the maximum distance (MD) between sampled points and the model factor (MF). The proposed index, unlike the most used in the literature, considers the influence of the range parameter to describe the spatial dependence, highlighting the importance of this formulation. The spatial dependence classification, based on the observed asymmetric behavior in the SDI, was performed considering categorizations from the median and the 3rd quartile of the index. We obtain the spatial dependence classification in terms of weak, moderate, and strong, just as it is usually described in literature. |
A possible role for natural killer cells in providing protection against Plasmodium berghei in early stages of infection. | Abstract Beige mutant mice, which are deficient in natural killer (NK) cells, exhibited a significantly higher parasitaemia than the parental C57BL/6 strain between days 4 and 10 after infection with Plasmodium berghei. Within 8–12 days after infection 70% of beige mice were dead but no deaths occurred in the parental strain until day 16. The median survival time of the beige mice (10 days) was significantly lower than that of the parental strain (22 days). It appears that NK cells may be protective in the early stages of malarial infection. |
A comparative study of free radicals in vertebrates--II. Non-enzymatic antioxidants and oxidative stress. | 1. ::: 1. The three main non-enzymatic endogenous soluble antioxidants and three estimators of oxidative stress were measured in the liver, lung and brain of seven animal species of different vertebrate classes. ::: ::: 2. ::: 2. The more concentrated antioxidant was GSH, followed by ascorbate and finally by uric acid. Liver showed higher levels of GSH and uric acid than the other two organs in the majority of the species. ::: ::: 3. ::: 3. GSSG/GSH ratio was highest in lung, probably due to the high pO2 prevalent in the tissue. Nevertheless, this did not result in higher tissue peroxidation, suggesting that the lung antioxidants are capable of coping with a high tissue pO2. ::: ::: 4. ::: 4. Tissue peroxidation was maximal in the brain when assayed by the TBA test, but this was not confirmed by HPLC of malondialdehyde (MDA). HPLC resulted in much lower MDA values than TBA. |
Clonic perseveration in the subacute stage of Japanese encephalitis | We report a very rare case of Japanese encephalitis (JE) presenting with reversible stereotyped movement in the subacute stage. A 58-year-old woman presented with high fever, headache, nausea, vomiting, and consciousness disturbance. Cranial magnetic resonance imaging (MRI) of fluid attenuated inversion recovery (FLAIR) and T2-weighted image (WI) showed high intensity areas in the bilateral thalamus, caudate nucleus and hippocampus. She developed coma, convulsion, and ballism in the acute stage. One month after onset, she showed rhythmic, stereotyped, repetitive movements with hypoperfusion in the thalamus and frontal cortex on single photon emission computed tomography (SPECT). Three months later, her stereotyped movement improved accompanied by recovery of hypoperfusion in the thalamus and frontal cortex on SPECT. We speculated that her stereotyped movement was clonic perseveration due to frontal dysfunction induced by thalamofrontal disconnection. |
Bilateral Asymptotic Solution of One Class of Dual Integral Equations of the Static Contact Problems for the Foundations Inhomogeneous in Depth | An article is devoted to the method of reduction of one class of dual integral equations, which appear while solving the mixed problems of elastic theory, to the solution of infinite algebraic equation systems in accordance with the method described by Alexandrov V.M. For example, such dual equations arise in solving the contact problems of elasticity theory for the layer inhomogeneous in depth or inhomogeneous half-space. The approximate solution of such equations is reduced to the solution of finite algebraic equation systems. It is proved that the solution, constructed in such way, is asymptotically exact as for small, as for large values of dimensionless geometrical parameter of the problem. The equations generated by the Fourier and Hankel integral transforms are provided as an example. |
Final design of an overbridging for railways endangered by cavities at Groebers | Sinkholes beneath roads and railways can cause serious difficulties in some regions in Germany. The introduction of high strength geosynthetic reinforcements and new polymers created better possibilities to reduce the foundation risk. The actually being under construction works railway node at Groebers includes 8 tracks and is about 800 m long and 120 m wide. This new railway section is situated in a post-mining area. Two of the tracks belong to the high speed line (300 km/h). A new developed overbridging system consisting of warning layer, two orthogonal installed geogrid layers (ultimate tensile strength: 1200 kN/m) and a cement stabilized bearing layer (to achieve a stable arch) was built and tested in 1998. The results of this full-scale test were decisive for the approval by German Railways. Some results of the test and of static calculations performed by FEM for the final project are presented in the paper. For the covering abstract see ITRD E125786. |
Hydrogen-air detonations. [PWR; BWR] | General gaseous detonation propagation phenomena are briefly discussed. The importance of cellular structure and cell size to detonation initiation, transmission and failure is emphasized. Experimental measurements of cell size lambda for hydrogen-air-carbon dioxide mixtures are presented; the hydrogen/air volume ratios range between 0.16 and 1.5 and the carbon dioxide mole fractions are 0, 0.05, 0.10 and 0.15. Cell sizes are a minimum for both diluted and undiluted hydrogen-air mixtures near stoichiometric (i.e., hydrogen/air = 0.4). Minimum cell sizes for carbon dioxide mole fractions of 0, 0.05, 0.10 and 0.15 are 1.51, 2.05, 4.2 and 15.0 cm, respectively. Results of large- and small-scale critical tube diameter (d/sub c/) measurements are presented and show good agreement with the empirical scaling law, d/sub c/ = 13 lambda. Mean detonation velocities and pressures have been measured and compared to the theoretical Chapman-Jouguet values. |
Robust Image Data Hiding Technique for Copyright Protection | A robust image data-hiding scheme for copyright protection is proposed and simulated. The scheme uses a combination of redundant discrete wavelet transform (RDWT), singular value decomposition (SVD) and spread spectrum technique. The embedding is done by spreading the copyright mark into the singular values of middle frequency sub-bands of RDWT coefficients of the cover image. Chaotic sequence is used for spreading. The use of chaotic sequence and RDWT increases security and robustness of the proposed scheme. Simulation results show that the proposed scheme achieves higher security and robustness against filtering, addition of noise, JPEG compression, sharpening, gamma correction, resizing, rotation, and histogram equalization than other existing techniques for copyright protection. |
Machinability of Bulk Metallic Glass Materials on Milling and Drilling | In this study, machinability of Zr-based bulk metallic glass (Zr52.5Ti5Cu17.9Ni14.6Al10) (BMG) material was investigated by conducting a set of milling and drilling experiments. In milling, two different tool paths, spiral and slot milling, were used. To investigate the behavior of BMG in drilling by two different tools at different feed rates, two sets of drilling experiments are conducted. Crown shaped exit burr formation are observed in drilling of BMG. Best results on thrust force, exit burr formation and hole surface roughness is obtained while using micrograin WC tool on BMG drilling. No chip light emission was observed during all tests. This study concludes that BMG can be achieved machining with good surface roughness, (Ra=0.113 µm), using conventional cutting tools. |
Another Kind of Digestion about Ideology——The Critical Study of Derrida `s Marxist view | Derrida was through two ways to the radicalizate Marxism: Ruthless abandon and infinite exaggerated.These two modes are highly have postmarxism Features,Namely,resolutely abandon that called be inappropriate parts in Marxism,Grasp some or one of the most important "debris"in Marxism that were thought by Derrida himself,Exaggerate the position about these or the" debris" in Marxism,And reflect even instead of the entire Marxism by these or the"debris".According the deconstructial logic,Derrida Subjectivelymay not dispel the Marxism,objectively would ruin Marx 's future,become another ideological digestion which is different as Fukuyama stream in form but destination may be same. |
Common Agricultural Information Databases both at Home and Abroad | This paper has given an introduction to 32 common agricultural databases the most frequently used at home and abroad. |
Attractive activity to Bactrocera dorsalis and chemical components analysis of the volatiles from Amygdalus persica | In the laboratory the behavioral responses of B.dorsalis to volatiles from Amygdalus persica were tested with Y-olfactometer,and the chemical components of these volatiles were analyzed with GC-MS.The results of B.dorsalis choice tests with Y-olfactometer showed that the essential oil from A.persica had a significant attraction effect on female B.dorsalis and the activity of the essential oil increased gradually with concentrations of essential oil increasing.GC-MS analysis of the volatiles from A.persica revealed that the main volatile compounds were Acetic acid,hexyl ester;D-Limonene;Octanoic acid ethylester;2-Hexen-1-ol,acetate,(E)-;γ-Decalactone;3-Hexen-1-ol,acetate,(Z)-. |
Detection, reaction, escape, and debilitation thresholds for electric shock in goldfish☆ | Abstract Reception of electric shock by small goldfish was studied with psychophysical methods. Shock intensity was specified as the gradient in volts/centimeter between the shock electrodes. Changes in current density in the water due to resistance changes had negligible effects upon several measures of reaction to shock. Absolute thresholds for an observable motor reaction were higher with the fish parallel to the electrodes than with a perpendicular orientation. These reaction thresholds were essentially identical to detection thresholds determined in an instrumental avoidance situation. Escape thresholds were substantially higher than reaction and detection thresholds. Changes in shock duration had little effect on any of these thresholds. There was a fairly wide range of motivationally significant shock intensities. Exposure to strong shock did not seem to have any long-lasting effects. |
Probiotics 3: Immunomodulation by the gut microflora and probiotics. | Preface. Contributors & Editors. 1. Mucosal immunity M.E. Roux, et al. 2. Adjuvants for mucosal vaccines J. Ronco, B. Guy. 3. Influence of resident intestinal microflora on the development and functions of the intestinal-associated lymphoid tissue M.C. Moreau, V. Gaboriau-Routhiau. 4. Antitumour activity of lactic acid bacteria I. Kato. 5. Modification of viral diarrhoea by probiotics E. Isolauri. 6. Modulation of the immune response of the immunosuppressed host by probiotics G. Perdigon, G. Oliver. 7. Modulation of cytokine expression by lactobacilli and its possible therapeutic use C. Maassen, et al. 8. Bioactive peptides from fermented foods their role in the immune system C. Matar, et al. 9. Mechanisms involved in the immunostimulation by lactic acid bacteria G. Perdigon, A. Pesce de Ruiz Holgado. 10. Probiotic bacteria as live oral vaccines. Lactobacillus as the versatile delivery vehicle W.J.A. Boersma, et al. G. Conclusions G. Perdigon, R. Fuller. Index. |
The Role of Gold Adatoms and Stereochemistry in Self-Assembly of Methylthiolate on Au(111) | On the basis of high resolution STM images and DFT modeling, we have resolved low- and high-coverage structures of methylthiolate (CH3S) self-assembled on the Au(111) surface. The key new finding is that the building block of all these structures has the same stoichiometry of two thiolate species joined by a gold adatom. The self-arrangement of the methylthiolate−adatom complexes on the surface depends critically on their stereochemical properties. Variations of the latter can produce local ordering of adatom complexes with either (3 × 4) or (3 × 4√3) periodicity. A possible structural connection between the (3 × 4√3) structure and commonly observed (√3 × √3)R30° phase in methylthiolate self-assembled monolayers is developed by taking into account the reduction in the long-range order and stereochemical isomerization at high coverage. We also suggest how the observed self-arrangements of methylthiolate may be related to the c(4 × 2) phase of its longer homologues. |
Some Algebraic Properties of Maxwell-Dirac Isomorphism | Abstract A new derivation of the Maxwell-Dirac isomorphism is presented. A complete set of transformations connecting Maxwell's electrodynamics and wave mechanics is obtained. |
Arsenic Remediation in Bangladeshi Rice Varieties with Enhance Plant Growth by Unique Arsenic-Resistant Bacterial Isolates | AbstractArsenic (As) pollution is one of the major threats to public health in Bangladesh, where daily intake of As per person exceeds the World Health Organization recommended level. Plants can as... |
Synthesis of Polyphosphazene and Its Application Prospect as Energetic Binder | The polyphosphazene is a class of novel functional polymeric materials with special structure and superior performance,backbone of which is arranged in alternative P-N atoms.The synthesis methods of polyphosphazene are reviewed,and its application prospect as energetic binder is discussed. |
Effect of phenolic glycosides on Agrobacterium tumefaciens virH gene induction and plant transformation. | O-Aryl-d-glucoside (4-7) and d-xyloside (8-10) derivatives were synthesized and tested on Agrobacterium virH gene induction and plant transformation. alpha- or beta-Glycosides enhanced vir activity at concentrations above 250 micromicro. The highest vir activity was observed with beta-glucoside derivative 4 at 10 mM. A marked difference between phenol glucoside derivative 4 and the corresponding free phenol on the growth of transformants was observed. The regenerated transgenic tissues, after transformation on medium containing acetosyringyl beta-glucoside 4, grew at twice the rate of those on medium containing only free acetosyringone (AS). Compound 4 was less toxic for tobacco explants compared to the corresponding free phenol. However, the xyloside derivatives tested (8-10) were less effective for gene induction compared with corresponding free phenols. |
A Probe into Main Factors to Motivate the Staff | The author analyzes the main factors to motivate the staff and believe s that these factors will change as time, space and individuality change. Moreov er, he argues that Chinese enterprises should adopt the proper motivation mode t o motivate the staff. |
Modification of SiC precursors with an amine–borane complex | Two methods for preparing precursors of Si/C/B-based thermostructural materials have been developed. The first consists of a thermal treatment of a mixture of polydimethylsilane (PDMS), (Me2Si)n, and triethylamine–borane adduct, Et3N : BH3 at atmospheric pressure. The second involves two steps: (i) transformation of PDMS into a polymer displaying Si–CH2–Si and Si–Si linkages in its backbone, and (ii) heating this product at atmospheric pressure, in the presence of Et3N: BH3. The ceramic material obtained from the second approach contains 2.2 at% boron and 1.5 at% oxygen. |
Diclofenac Does Not Reduce the Risk of Post-endoscopic Retrograde Cholangiopancreatography Pancreatitis in Low-Risk Units | Background ::: Nonsteroidal anti-inflammatory drugs have an inhibitory role in pathogenesis of pancreatitis. Guidelines from the European Society of Gastrointestinal Endoscopy recommend routine rectal administration of 100 mg of diclofenac or indomethacin immediately before or after ERCP for all patients without contraindications. |
Water Disinfection Using Silver and Copper Ions and Colloidal Gold | The efficacy of using Ag+ and Cu2+ metal ions and colloidal Au combinations (within the limits of current drinking water regulations) for killing Typhoid-Paratyphoid, Legionella pneumophila, Salmonella, Vibrio cholerae asiaticea, Lamblia intestinalis, Cryptosporidium parvum, etc. has been examined. Tests carried out in various laboratories during 1998–2003 have shown the dependence of bacteria killing time on metal ion concentration, initial bacteria concentration, and the influence of the concentration of various ions (Cl−, SO42−, S2–, Fe2+, Fe3+) on the disinfection process. |
Experimental Model for the Otitis Media with Effusion Induced by Arthus' Reaction | The Arthus' reaction in the middle ear cavity was studied using histochemical technique. The deposition of immune complex on the basement membrane and the immune complex in the middle ear effusion were the initial features of these animal models. But, these immune complexes were clearly removed from the tympanic cavity during the early phase of reaction. Immune complexes were supposed to be just a initiation of otitis media with effusion. The tubal dysfunction and local immunity of middle ear mucosa caused by the Arthus' reaction seemed to be responsible for the chronicity and relapsing of otitis media with effusion respectively. |
Kinetics of formal glycol complete oxidation over a platinum-alumina catalyst | The kinetics of complete oxidation of formal glycol over a platinum-alumina catalyst is studied by the thermokinetic and the flow-circulation methods. The reaction rate order with respect to formal glycol and the activation energy determined by the thermokinetic method are 0.59 and 131 kJ/mol, respectively. The same characteristics measured in a nongradient reactor are 0.61 and 143 kJ/mol. Differential adsorption heats of formal glycol (-35.6 kJ/mol) and butanol (-41.5 kJ/mol) are found by the gas-adsorption method to justify the kinetic equation. |
Magnetic manipulation of materials in a magnetic ionic liquid | Nonmagnetic materials in a magnetic ionic liquid, which has a very large magnetic susceptibility, respond to a magnet as if they are strongly diamagnetic. The trajectory of deflected nitrogen gas bubbles in 1-butyl-3-methylimidazolium tetrachloroferrate has been measured. It shows a good agreement with theory. Nonmagnetic materials can be transported and separated in a magnetic ionic liquid, according to their density and magnetic susceptibility by regulating magnetic field and its gradient. |
Real-time simulation of linear synchronous motor in hardware-in-loop test system | This paper analyzes the long-stator linear synchronous motor (LLSM) which is powered by two parallel converters. When LLSM is applied in high speed rail traffic, the long distance feeder cable has to be considered. Real time simulation is introduced to test the controller of the LLSM by using dSPACE real-time simulation platform. A real dynamic mathematical model utilizing MATLAB/SEVIULINK is built. The C code of the models is generated from RTW toolbox in MATLAB, and downloaded to the dSPACE. The models in dSPACE computer communicate with actual controller of LLSM by peripheral interface circuit such A/D, D/A, digital I/O. Real time control results show that the HTL simulation for the LLSM perform effectively. |
The Research on the Penetration Depth of Ink in Offset Paper | In order to research the relationship between penetration depth of ink and dynamic liquid absorption permeability,this paper predicts the penetration depth of ink in offset paper. The study chooses ten kinds of offset paper and tests their characters, including smoothness, roughness, glossiness, whiteness and the weight absorbed by paper surface. By using a dynamic penetration analyzer( HVL-PDA) and water as test fluid,the dynamic absorption characteristics of the ten kinds of offset paper are measured,making a proof of offset printing patterns of these ten kinds of offset paper by using a printability tester at the same time. The depths of ink penetration in ten kinds of offset paper are measured by the three-dimensional video microscopy system,the results of the analyses show that the penetration depth of ink is closely related to paper dynamic liquid absorption. |
Preparation of elemental Si from SiO2 | Abstract A method was developed to prepare elemental Si from SiO 2 in quantities up to 500 mg. SiO 2 is first converted to K 2 [SiF 6 ] which is then submitted to a metallothermic reduction with Al. The gray α-modification of Si is formed by this procedure. The material is of high purity, as verified by electron microprobe, X-ray diffraction and spark source mass spectrometry analyses. |
Document Security Protection System with USBKey Based Authentication Technology | With the rapid development of internet technology and removable storage devices,it's getting easier to share and distribute digital documents.Meanwhile,it also brings about a new challenge to intellectual property protection and information security.This paper proposes and designs a novel protection system named eSafe,which provides comprehensive security protection for digital documents by combining USBkey based authentication technology with data encryption and decryption algorithm such as DES and RSA.The key component USBkey in the proposed system adopts access control technology and auto-encryption to protect data security in user data processing.The architecture and main functional modules of the proposed system are described in detail respectively.Its applications show that it can effectively protect digital documents. |
Tissue-Resident Memory T Cells in Cancer Immunosurveillance | Following their activation and expansion in response to foreign threats, many T cells are retained in peripheral tissues without recirculating in the blood. These tissue-resident CD8 + memory T (T RM ) cells patrol barrier surfaces and nonlymphoid organs, where their critical role in protecting against viral and bacterial infections is well established. Recent evidence suggests that T RM cells also play a vital part in preventing the development and spread of solid tumors. Here, we discuss the emerging role of T RM cells in anticancer immunity. We highlight defining features of tumor-localizing T RM cells, examine the mechanisms through which they have recently been shown to suppress cancer growth, and explore their potential as future targets of cancer immunotherapy. |
Generating adequate representations for learning from interaction in complex multiagent simulations | Wargames are an example of complex multiagent simulations for which, specifying agent behavior adequately in advance for all potential situations is not feasible. In this context, we have applied reinforcement learning as an adaptive approach to design strategies for these simulations. In this paper, we introduce our approach and focus on a novel algorithm for generating representations with adequate granularities for commanders of a military hierarchy. |
Conversions of Surface Grain-Size Samples Collected and Recorded Using Different Procedures | AbstractInformation about the grain-size distribution of the surface layer of sediment exposed on riverbeds is often critical in studies of fluvial hydraulics, geomorphology, and ecology. A variety of sampling and analysis techniques are in common usage that produce grain-size distributions that are not directly comparable. This paper seeks to explore the appropriate conversions between different types of surface grain-size sampling methods. This is particularly timely in the light of increasingly widespread use of automatic and semiautomatic image-based measurement methods, the comparability of which with conventional measurement methods is relatively poorly constrained. For conversions between area-by-number (paint-and-pick) and grid-by-number (pebble-count) samples, the empirically derived conversion factor (±2.2) was found to be greater than that predicted by the Kellerhals and Bray model (±2), but the errors associated with using the value predicted by the model were small (3.8% in mm). For conversio... |
Theory of non-stationary processes in cyclotron resonance masers with counterrunning waves | Abstract A theory is developed for non-stationary oscillations in cyclotron resonance masers with a Fabry—Perot resonator in which electrons guided by the external magnetic field parallel to the mirrors piano may effectively interact with both counterrunning waves that form the resonator field. General equations are obtained and space-time evolution of envelope amplitudes of both waves is studied. It is shown that as the beam current grows, stationary oscillations are changed by self-modulation radiation which gradually gets more and more complicated and finally changes to stochastic oscillations. |
The Impact of the I-664 Bridge-Tunnel Crossing on Sedimentation | A sedimentation evaluation was made of the proposed I-664 Bridge-Tunnel complex across the James River, Virginia. This paper briefly describes the procedures used and the results obtained for this particular project. |
Oscillation of Nanomachines Based on Molecular Diffusion With Noises | Nanotechnology has stimulated the development of devices at the scale ranging from a few nanometers to tens of micrometers, known as nanomachines. Nanonetworks, the combination of interconnected nanomachines, are expected to accomplish more complicated tasks in terms of both complexity and range of operation. The proper study and characterization of the impact of the noises are of great importance for the design of nanonetworks. This paper proposes a diffusion-based oscillation model for nanomachines with noises. The noises include anexternal noise source, the enzymes that can react with the molecules and the thermal noise. The objective of this paper is to model and analyze the influences of the external noise source, the enzymes, and the thermal noise to the oscillation. Numerical results evaluate the influence of the external noise source, the present enzymes in the environment, and the thermal noise to the nanomachine’s oscillation period. |
Thoughts on audit of economic responsibilities of cadres of township | As the peculiarity of audit of township cadres' economic responsibilities influences the accuracy of audit evaluation,it should be done to highlight the key points,give pre-trial investigation,extend the audit and stick to the point of "economic responsibilities" in order to make an objective and fair evaluation. |
Precaution Theory and Study on Alkal ine Desertification of Soil | The alkaline desertification due t o soil alkalinization and secondary alkalinization has been expanded in time and space in our arid and semi -arid zone,which has been also regarded as a deeply influ enced eco -environmental problem.I n the paper,the authors put forwards the concept of alkaline desertification and set up a precaution theory.Based on the cause systemon the disaster,a comprehensive precaution study has been done and the results reveal the precaution degree in quantitative a nd qualitative,it is useful to protect the environment an d develop the resources. |
A Creep-Damage Constitutive Model for Sandstone | Based on the results obtained by the triaxial creep test, a creep-damage constitutive model for sandstone is presented by using the damage theory and by introducing the concept of “the whole process of damage” into Burgers creep model. The parameters of the model are determined by fitting the creep test data. The result shows that the proposed model can not only describe efficiently the variation of decay and steady creep under relatively low stress condition, but also give a satisfied representation of damage behavior in accelerated creep stage. |
Metonymic Schemas and Their Instantiation in Different Languages:With Chinese and English N-V Shift as an Example | The paper re-investigates N-V shifts in English and Modern Chinese from the perspective of cognitive linguistics.It discusses the metonymic base of the classification and distribution of N-V shift in both languages.It argues that differences between English and Modern Chinese in regard to N-V shift embody their different instantiations of metonymic schemas under different conventional constraints, and also intends to shed some light on the connections between general cognitive processes and language-specific conceptualization. |
Knowledge Transfer by the Global Terrestrial Network for Permafrost (GTN-P) | Permafrost ecosystems occupy a quarter of the land surface in the Northern Hemisphere. Ongoing rapid temperature change in these areas causes permafrost warming in the Arctic and thawing in the Subarctic regions (Romanovsky et al. Permafr Periglac Process 21:106–116 2010). |
Progress of Food Packaging Safety Research at Home and Abroad | The studies on the migration of the small and medium-sized molecule chemicals from paper,plastic,metal,and other packaging materials into food at home and abroad were introduced.It was concluded that food pollution problems that caused by these small molecule chemicals have already attracted attention around the world.Legislations were established to ensure food safety in each country.The research directions of the food safety in our country were put forward. |
A study on the adaptation of soundscape to covered spaces: Part 2 | This study is the second part of a research on the Adaptation of soundscape to covered spaces. A modern and a historical shopping center were compared and evaluated by means of subjective and objective evaluations. The consistency of the objective (time histories) and subjective (listening tests) findings showed that covered commercial areas may have a specific sound environment. The formation of streets is generally the basic spatial design concept that connects open and closed shopping areas. Therefore one of the studies that authors proposed at the previous paper was the comparison of open and closed shopping areas. In this study the soundscapes of a modern and a traditional street having shopping as a basic function will be determined by soundwalks and listening tests, and the findings will be compared with those of the previous studies. |
Atomic layer deposition of amorphous Ni-Ta-N films for Cu diffusion barrier | Novel Ni-doped TaN (Ni-Ta-N) films are deposited by remote plasma-enhanced atomic layer deposition (ALD) with pentakis(dimethylamino)tantalum, nickelocene, and NH3 precursors for Cu diffusion barriers. Various Ni-Ta-N films with different compositions are achieved by changing the deposition cycles (n) of Ni sublayer while fixing the deposition cycles of TaN sublayer at 2. As n increases from 1 to 6, the root-mean-square roughness of the deposited film increases from 0.150 to 0.527 nm, and the resistivity decreases from 0.18 to 1.1 × 10−2 Ω cm. After annealing at 400 °C for 30 min in the forming gas (N2/H2), these films still maintain an amorphous texture and demonstrate a negligible reduction of resistivity and a weak increase of density. Subsequently, the barrier effects of the Ni-Ta-N films with different compositions are compared against Cu diffusion after annealing. The results reveal that the Ni-Ta-N films with n ≤ 4 exhibit barrier effects comparable with the ALD TaN film even after annealing at 550... |
Radiological assessment of renal length in children. | Assessment of kidney length to other easily available parameters such as L1-L3 length and age in the evaluation and care of growing children with kidney disease is a prerequisite. Eighty nine IVP photos were selected from children with urinary tract infection. Radiological examinations were done after the absence of clinical and laboratory abnormalities. Nine or 10.1% IVP photos had radiological abnormalities so they were excluded from this study. There was no difference in kidney length between boys and girls. There was a difference in length between the right and the left kidney. A strong correlation was found between kidney length and L1-L3 length, age, body height and body weight. Tables are presented for charting data on kidney length and will be of use by pediatricians, radiologists and urologists in the care of growing children with kidney ailments. |
Correction: Park, J.; et al. Fine-Grained Power Gating Using an MRAM-CMOS Non-Volatile Flip-Flop. Micromachines 2019, 10, 411 | As this research is a personal achievement with no company-related information, and there is no financial support for this paper from Qualcomm Technologies Inc [...] |
First record of Thinoseius spinosus (Acari: Eviphididae) from the high Arctic island of Spitsbergen (Svalbard) including a key to deutonymphs of genus Thinoseius | ABSTRACT Thinoseius spinosus is reported from the high Arctic island of Spitsbergen, Svalbard, for the first time. The deutonymphs were phoretic on the calliphorid dipteran Protophormia terraenovae. Mites were observed on 20.4% of adult flies. The number of mites per fly varied between 0 up to a maximum of 17 (median number of mites per fly with mites = 1). Although mites were found attached all over the body it seems likely that during dispersal the mites are usually found intercalated between the abdominal plates. An overview of the currently known species of Thinoseius, their occurrence and a key to the deutonymphs are presented. |
The failure morphology of PEEK/carbon fiber ±45° angle‐ply laminates | The ultimate strength of certain thermoplastic matrix laminates is observed to be strongly dependent upon the stacking sequence. Such effects are thought to be due to the development and action of through-thickness stresses at the edges of laminates. However, the action of such stresses is not normally considered in Classical Laminate Theory. This paper describes experimental studies of the development of damage in, and subsequent failure of, a family of laminates that exhibit “through-thickness” effects. Important differences between the mode of failure and development of damage prior to failure are identified, and these observations correlated with other workers' predictions concerning the presence and actions of edge stresses. |
Policy analysis matrices: beyond simple sensitivity analysis | As an analytical methodology, the Policy Analysis Matrix (PAM) can be used to provide indicators of the incentives faced by producers in a given policy and institutional environment. However, the methodology suffers from the limitation that the analyst is unable to attach any level of confidence to the results, other than that generated through sensitivity analysis. In this paper the technique of bootstrapping is introduced as a general method for assessing the degree of uncertainty surrounding indicators derived from PAMs. The example of wheat production in Slovakia is used to demonstrate the usefulness of the additional information generated by this approach. Copyright © 2002 John Wiley & Sons, Ltd. |
Design of the driving system for automatic fire cannon | Considering the vehicle-mounted fire cannon can not respond quickly to the fire request, a driving system program of automatic fire cannon is designed. Using two stepper motors as actuator,and taking horizontal and vertical rotation movement to position fire cannon. Using stepping motor driver IC THB6064H design motor drive circuit, using AVR microcontroller Atmega16 complete motion control. |
Scandic Aarhus City, Denmark - Travel Queen | Take advantage of recreation opportunities such as a 24-hour fitness center, or other amenities including complimentary wireless Internet access and gift shops/newsstands. |
SUAS, CRAS e controle social: um estudo sobre Londrina | The present work discusses the Social Assistance Unique System and social control in Londrina/PR. Its main objective is to analyze how the social control is carried out under the Social Assistance Policy and, particularly, in the Social Assistance Unique System, from the Social Assistance Reference Center (CRAS) units in the city of Londrina/PR. Londrina has implemented twelve CRAS units. The qualitative approach was used and the data was collected by semi- structuralized interviews with CRAS urban units’ coordinators. We have chosen the urban units due to their better services structure targeted on the users. From the thematic analysis of the interviews, it can be concluded that the social control has been constantly stimulated by the CRASs; it is in a consolidation process; it depends on exhausting professional work; and its main limitation remains on the history related to charity, which is still impregnated in the Social Assistance Policy. |
Enhanced shape memory and superelasticity in small-volume ceramics: a perspective on the controlling factors | Shape memory ceramics show potential for energy damping and actuation applications. In particular, small-scale structures of zirconia-based ceramics demonstrate significantly enhanced shape memory and superelastic properties compared with their bulk counterparts, mainly because an oligocrystalline or single-crystal microscale structure reduces mismatch stresses amongst grains. In this Prospective article, we review recent experiments that explore the shape memory properties of small-scale zirconia-based ceramics, including the effects of composition, sample and grain size, and cyclic loading. These factors are reviewed with an eye toward rendering shape memory ceramics more useful in future applications. |
Air Traffic Control Regulation with Union Bargaining | This paper studies the behavior of the air traffic control (ATC) centers in the EU. We investigate the functioning of the European ATC sector with a union bargaining model. In this model, working conditions are the outcome of a bargaining game between the public air traffic control agency and the unions of air traffic controllers. We use this framework to understand the behavior of the ATC centers for wage formation, their reactions to a price-cap, adoption of new technologies, congestion pricing, effect of vertical disintegration, competition and the possible success of mergers between different national ATC centers. The theory is able to explain the slow progress in ATC performance in a unionized environment. We also test the theoretical model and estimate its parameters. The empirical analysis is based on actual ATC performance data. |
Health Promotion at the Workplace | Health promotion encompasses those activities undertaken to improve the quality of one's life, thereby moving the individual forward toward a state of wellness or optimal health. Occupational health nurses are in a prime position to impart knowledge and change attitudes and behaviors and thus are uniquely qualified to plan, develop, implement, and evaluate workplace health promotion programs. Employee health promotion programs are based on the theory that it costs less to educate workers about controllable lifestyle health risks than to pay for the cost of ill health. Comprehensive workplace health promotion programs should be targeted at three levels: awareness, lifestyle/behavior change, and supportive environments, if long-term success is to be achieved. Occupational health nurses may use the Model for Workplace Health Promotion to assist them in planning, developing, implementing, and evaluating programs that provide health and cost benefits for both employees and employers. |
Recombinant human morphogenetic protein: its future role in spinal fusions | The marriage of basic scientific research and clinical application often leads to profound advances in our understanding of various disease processes and how they may be ameliorated. One such fortuitous combination has been the discovery of bone morphogenetic proteins (BMPs) and their potential application in spinal fusions. The goal of this article is to introduce the neurosurgeon to the basic biology of this protein family, current experimental data (in vitro and in vivo models) demonstrating their effectiveness in enhancing bony fusions, and preliminary clinical trials utilizing BMP in long bone fusions. Using this information, a proposal for the use of BMP in spinal fusions under various clinical scenarios will be discussed. |
Depth discrimination of a line is improved by adding other nearby lines | Abstract Depth discrimination thresholds are shown to be lowered by up to a factor of 10 when a few reference lines are added to a stimulus containing a single isolated test line. Four reference lines are better than two, which are better than one, and the improvement in performance is greater when the test line lies between the two reference lines in depth. Stereoacuity for the relative depth of a target line, relative to other nearby reference lines, is shown to be insensitive to changes of disparity of the whole pattern of up to about ± 5arc min and is only weakly sensitive to larger displacements of up to ±10arc min. |
Groundwater Monitoring Plan for the Reactor Technology Complex Operable Unit 2-13 | This Groundwater Monitoring Plan describes the objectives, activities, and assessments that will be performed to support the on-going groundwater monitoring requirements at the Reactor Technology Complex, formerly the Test Reactor Area (TRA). The requirements for groundwater monitoring were stipulated in the Final Record of Decision for Test Reactor Area, Operable Unit 2-13, signed in December 1997. The monitoring requirements were modified by the First Five-Year Review Report for the Test Reactor Area, Operable Unit 2-13, at the Idaho National Engineering and Environmental Laboratory to focus on those contaminants of concern that warrant continued surveillance, including chromium, tritium, strontium-90, and cobalt-60. Based upon recommendations provided in the Annual Groundwater Monitoring Status Report for 2006, the groundwater monitoring frequency was reduced to annually from twice a year. |
Metallic Properties of Graphite at High Pressures | This study shows that the carrier concentration of graphite can be raised to 1020 cm−3 by applying pressure above 20 GPa. This could increase the chance of finding of superconductivity. The anisotropy in pressure dependence of conductivity provides a useful insight into the conduction mechanism along the c‐axis. |
The Social Role and Agency of Virtual Community | The virtuality of the social role of virtual community is actually to hide the original social system. Virtuality is the base to explain net agent and its fundamental intention lies in the construction of a new system of significance in nets. Compared with outer virtual community, virtual community not only is the result of self expression and agency but also provides a new angle for the research into the dilemma of sociology. |
Philippe II and the Parisian League (1588) | The first aim of this paper is didactic. We wish to draw attention to the difficulties in addressing the transition to the throne of France between the Valois and the Bourbon in this year of commemoration of the assassination of Henri the Fourth. As often happens after a civil war, peace is accompanied not only by a broad amnesty, but also by a form of amnesia. The "duty of oversight" imposed on the former belligerents, far from our contemporary uses and misuses of our "duty of memory," can only disturb or mislead historians. We are committed to carefully compare domestic and foreign sources, including the archives of Simancas, given that foreign powers, particularly Spain, were largely active during the War of the League (1585 |
NUCLEAR SCIENCE ANNUAL REPORT 1977-1978 | d f..,,~~ ,..,1I U i t.i It·:~ lE.~ C E n '\f f! D iLAWR~]\~C~ ~r;~IGl&1i\i lArYJriP TORY lLJEFU\R ( AND 'j;'JnCUlVU;;NT5 SECTION ANNUAL REP()I{T' For Reference Not to be taken from this room r LAWRENCE BERKELEY LABORATORY UNIVERSITY OF CALIFORNIAIBERKELEY - c p Prepared for the U,S, Department of Energy under Contract W- 7405-ENG-48 I |
Tensor based approach to the numerical treatment of the parameter estimation problems in mathematical immunology | Abstract The development of efficient computational tools for data assimilation and analysis using multi-parameter models is one of the major issues in systems immunology. The mathematical description of the immune processes across different scales calls for the development of multiscale models characterized by a high dimensionality of the state space and a large number of parameters. In this study we consider a standard parameter estimation problem for two models, formulated as ODEs systems: the model of HIV infection and BrdU-labeled cell division model. The data fitting is formulated as global optimization of variants of least squares objective function. A new computational method based on Tensor Train (TT) decomposition is applied to solve the formulated problem. The idea of proposed method is to extract the tensor structure of the optimized functional and use it for optimization. The method demonstrated a better performance in comparison with some other broadly used global optimization techniques. |
Oxidation state of the atmosphere and crust of Venus from Pioneer Venus results | Abstract Recent spacecraft observations of Venus permit a detailed model of sulfur chemistry in the atmosphere-lithosphere system. Pioneer Venus experiments confirm that, as predicted, COS and H 2 S are dominant over SO 2 in the lower atmosphere, and that the equilibrium concentrations of S 2 and S 3 are significant. Many criteria serve to bracket the oxidation state of the crust: it is nearly certain that the S 2 2− /SO 4 2− buffer regulates the oxygen fucagity, and that FeO is at least as abundant as Fe 2 O 3 in crustal silicates. A highly oxidized crust (as, for example, would result from O 2 absorption complementary to escape of vast amounts of H 2 ) is incompatible with the gas-phase sulfur chemistry. If the Pioneer Venus mass spectrometer estimates of the abundance of sulfur gases are correct, Earth-like models for the bulk composition of Venus are seriously in error, and a far lower FeO content is required for Venus. |
A new fabrication method of low stress PECVD SiNx layers for biomedical applications | A new fabrication method to produce low residual stress PECVD SiN x layers at high deposition rates was developed and their biomedical applications were reported in this paper. This new method employed up to 600 W high power to fabricate low stress SiN x layers in high frequency (13.56 MHz). By adjusting the composition of reactant gases, the residual stress can be lowered to 4 MPa and high deposition rate up to 320 nm/ min can be achieved. In addition, this paper also investigated the influence of other important parameter, such as pressure, power and gases flow rates. Moreover, by using this optimized process, an 11 μm thick low stress SiN x layer was produced, which will be used to fabricate large window area for cell culture. Finally, a successful cell culture test involving cultivating mouse stem cells onto the porous membrane made of these low stress PECVD SiN x layers indicated that these layers are biocompatible and are suitable for biomedical applications. |
And method of manufacturing a silicon nitride wear resistant member | One kind of silicon nitride wear resistant member is formed of a sintered silicon nitride, the silicon nitride sintered body containing oxides, 2-4% of its mass as a sintering aid of a rare earth element, its oxide basis 2-6% by mass of Al component, and 2-7% by mass of silicon carbide. The silicon nitride sintered body having a 1% or less of porosity, fracture toughness, flexural strength of 800-1000MPa and 5.7-6.6MPa · m1 / 2 in. According to this structure, even if a cheap manufacturing method of nitriding a metal silicon nitride powder, and also provides a method of manufacturing a silicon nitride wear resistant member and the member, the member having a silicon nitride sintered body as compared with ordinary or higher mechanical strength, high anti-wear properties and rolling life, and has excellent workability. |
Large Barkhausen discontinuities in Co‐based amorphous wires with negative magnetostriction | Magnetic properties, such as domain patterns and anisotropy, were measured for negative magnetostrictive Co‐Si‐B amorphous wires exhibiting large Barkhausen discontinuities and the results are compared to those of Fe‐Si‐B wires with positive magnetostriction. The Co‐based wire was found to have a bamboolike domain structure at the wire surface. It was also shown that the amorphous wires prepared by the in‐water quenching technique store tensile stress in the radial direction. The magnetostrictive anisotropy due to residual stress will produce an axial component of magnetization in conjunction with the two‐dimensional geometry of wires making both Co‐ and Fe‐based wires exhibit large Barkhausen discontinuities along the axis of the wire. |
Structural Strengthening using Carbon Fiber Reinforced Polymer | This paper presents practical pointers to be considered in strengthening ::: concrete structure with Carbon Fiber Reinforeced Polymer (CFRP) which becomes more popular ::: nowadays. It is pointed out that the strengthening process consists of assessment, design, and ::: installation andthat should be done by people who are competent, experienced, and professional ::: in their field. |
Battery Power Efficiency of PPM and FSK in Wireless Sensor Networks | Sensor nodes in wireless sensor networks (WSNs) are often expected to operate on batteries for a long period of time. Battery power-efficiency is a critical factor dictating the lifetime of WSNs. In this paper, we compare two pulse-based modulations, namely pulse position modulation (PPM) and on-off keying (OOK), both of which are suitable for WSNs due to their low complexity transceivers. The comparison is based on a general model that integrates typical WSN transmission and reception modules with realistic nonlinear battery models. We analyze and compare the battery power-efficiency of PPM and OOK using coherent detection, and with bit error rate (BER) and cutoff rate criteria. Our results reveal that in sparse WSNs, PPM is more battery power-efficient. In dense WSNs, OOK outperforms PPM. In addition, the battery power-efficiency of OOK increases as the required cutoff rate decreases. |
Body dissatisfaction in bulimia nervosa: Relationship to weight and shape concerns and psychological functioning | The evolution of diagnostic criteria from DSM-III to DSM-Ill-R for bulimia nervosa included the addition of overconcern with body shape and weight as a psychological dimension. This survey of 524 bulimic females in Toronto and New York documents the prevalence of the more specific dimension of body dissatisfaction in this population and highlights its association with related psychological disturbances. The virtual ubiquity of this dimension is discussed in terms of implications for future diagnostic criteria. |
College English Reading Teaching:A Register Perspective | Systemic functional linguistics holds that language use is constrained by its context and different contexts constitute various registers.Register,which is composed of field,tenor and mode,is realized by the ideational,interpersonal and textual functions of language.Such a relationship between register and text suggests that register be embodied in the text and a good analysis of the register is the best interpretation of the text itself.The implication of the register lies in its contributions to the teaching of English reading. |
The effects of open throat technique on long term average spectra (LTAS) of female classical voices | In the third of a series of studies on open throat technique, we compared long term average spectra (LTAS) of six advanced singing students under three conditions: ‘optimal’ (O), representing maximal open throat, ‘sub-optimal’ (SO), using reduced open throat, and loud sub-optimal (LSO) to control for the effect of loudness. Using a series of univariate repeated measures ANOVAs with planned orthogonal contrasts, we tested the hypotheses that sound pressure level (SPL) and the ratio of spectral energy in peaks and areas between 0–2 kHz and 2–4 kHz would be reduced in SO and LSO compared to O. There were significant differences between SO and LSO but hypotheses were not confirmed for O. These findings do not accord with differences in vibrato extent and onset between O and SO/LSO (Mitchell and Kenny, in press). These results suggest that while LTAS provides information on energy distribution, measuring spectral energy areas appears to be the most sensitive measure of energy distribution between conditions. P... |
Switching of ferroelectric thin films | Abstract Lithium Niobate (LiNbO3) is a unique ferroelectric material with a large coercive field and remanent polarization. These properties are essential for reliable ferroelectric memory applications. The switching behavior of Metal-LiNbO3-Silicon capacitor devices is therefore investigated. Alternating polarity double pulses are applied to the devices and the resulting transient currents are captured on an oscilloscope. Many of these capacitors have shown unstable polarization reversal, in which the ferroelectric switches polarization direction with the pulse but relaxes back almost immediately after. The characteristics of this particular behavior are investigated and presented. |
Challenges in designing digital interfaces for the study of multimodal phenomena | The paper discusses the challenges faced by researchers in developing effective digital interfaces for analyzing the meaning-making processes of multimodal phenomena. The authors propose a social semiotic approach as the underlying theoretical foundation, because interactive digital technology is the embodiment of multimodal social semiotic communication. The paper outlines the complex issues with which researchers are confronted in designing digital interface frameworks for modeling, analyzing, and retrieving meaning from multimodal data, giving due consideration to the multiplicity of theoretical frameworks and theories which have been developed for the study of multimodal text within social semiotics, and their impact on the development of a computer-based tool for the exploration, annotation, and analysis of multimodal data. |
Four-dimensional contact CR-submanifolds in S7(1) | The analogue of CR-submanifolds in (almost) Kahlerian manifolds is the concept of contact CR-submanifolds in Sasakian manifolds. These are submanifolds for which the structure vector field ξ is tangent to the submanifold and for which the tangent bundle of M can be decomposed as T(M)=H(M)⊕E(M)⊕Rξ, where H(M) is invariant with respect to the endomorphism φ and E(M) is antiinvariant with respect to φ. The lowest possible dimension for M in which this decomposition is non trivial is the dimension 4. In this paper we obtain a complete classification of four-dimensional contact CR-submanifolds in S5(1) and S7(1) for which the second fundamental form restricted to H(M) and E(M) vanishes identically. |
Kleene Automata And Recursion Theory | Following the introduction of a theoretical computational model on infinite objects, the ω-input Turing machine, we present a new type of infinite automata, the Kleene automata. We show it recognizes exactly the class of arithmetical ω-languages. Essentially, it is a proposisional automaton for which the transition relation is recursive and the interpretation of atomic formulas associated with each state is recursive. The acceptance conditions are built up hierarchically by adding to each level, the recursive disjonctions of negations of the previous level's formulas. The first level is a proposisional temporal logic restricted to the only one temporal operator next. We show the expressive power of this logic to be the class of recursive ω-languages. |
Luminescent properties of Langmuir-Blodgett films of europium bisphthalocyanine | Eu(III)-octa-4-(tetrahydrofurfuroxy) phthalocyanine (EuPc2') was synthesied and characterized by elementary analysis, IR, MS, UV-vis spectra. EuPc2' has good film-forming ability from determination of isotherm of pi-A. The complex LB film was formed by depositing of EuPc2' on a quartz slide with the LB techniques of the Z-type, The luminescent properties of pure and doped LS films were determined. The results showed that pure films have good luminescent properties, the thicker the LB films, the stronger the fluorescent intensity. The films doped with o-phenanthroline (abbreviated as phen) made the relative intensity of fluorescent emission behavior enhance in comparison to that of pure LB film, But the amount of phen may be not too much. Our results showed that EuPc2':phen = 1: 10 (molar ratio) has the best fluorescent behavior. The electronic spectroscopic characterization of the LB films is also given. |
Radiology of the nasopharynx: Pictorial essay | SUMMARY ::: The nasopharynx, located just below the central skull base, is a difficult area to evaluate clinically. Endoscopic examination provides useful information but cannot delineate submucosal disease. Benign lesions of the nasopharynx are relatively uncommon. They include Thornwaldt cyst, juvenile angiofibroma, haemangioma, haemangiopericytoma, Kimura’s disease, branchial cleft cyst, oncocytoma, amyloidoma, and non-ossifying fibromyxoid tumours. The most common malignant lesions are carcinomas and lymphomas. Other malignant neoplasms such as adenocystic carcinomas are rarely seen. The purpose of the present pictorial review is to highlight the salient normal anatomy of the nasopharynx and the spectrum of pathological anatomy. |
Contribution of the autumn Tibetan Plateau snow cover to seasonal prediction of North American winter temperature | AbstractPredicting surface air temperature (T) is a major task of North American (NA) winter seasonal prediction. It has been recognized that variations of the NA winter T’s can be associated with El Nino–Southern Oscillation (ENSO) and the North Atlantic Oscillation (NAO). This study presents observed evidence that variability in snow cover over the Tibetan Plateau (TP) and its adjacent areas in prior autumn (September–November) is significantly correlated with the first principal component (PC1) of the NA winter T’s, which features a meridional seesaw pattern over the NA continent. The autumn TP snow cover anomaly can persist into the following winter through a positive feedback between snow cover and the atmosphere. A positive TP snow cover anomaly may induce a negative sea level pressure and geopotential height anomaly over the eastern North Pacific, a positive geopotential height anomaly over Canada, and a negative anomaly over the southeastern United States—a structure very similar to the positive p... |
SnO2@TiO2 double-shell nanotubes for a lithium ion battery anode with excellent high rate cyclability. | SnO2@TiO2 double-shell nanotubes have been facilely synthesized by atomic layer deposition (ALD) using electrospun PAN nanofibers as templates. The double-shell nanotubes exhibited excellent high rate cyclability for lithium ion batteries. The retention of hollow structures during cycling was demonstrated. |
Domestic Financial Markets and Offshore Bond Financing | Firms in emerging market economies markedly increased their issuance of bonds in offshore markets after the Great Financial Crisis. By contrast, increases in offshore bond issuance by firms in advanced economies were more muted. An empirical analysis suggests that the less developed state of financial markets in emerging economies may have encouraged firms there to step up their offshore bond issuance as external financing costs fell. Firms appear to use the proceeds of offshore bonds to boost their holdings of short-term assets. This may raise financial stability concerns. |