Test/basic_science_and_engineering/engineering_and_technology/test.en

In addition, rate of catalyst deactivation decreased by 46% during 20 days continues synthesis.
Generally, image denoising approaches can be categorized as spatial domain and transform domain methods according to the image representation.
Then, motor is simulated using Ansoft Maxwell which is based on finite element analysis. This software gives required information about performance of the motor.
Land covers classification Polarimetric SAR data Polarimetric signature Object-Oriented classification Knowledge based classification
Increasing of regulations and warnings for conservation of environment and human well-being have clearly revealed a necessity of replacing new and non-toxic types of anticorrosion pigment.
For preparation of the oxide/metal/oxide sandwich samples air bubbles, with 0.8 atmosphere pressure, were blown into the melts and the intersection of the entrapped bubbles was taken for the study.
The characteristic of this hybrid algorithm is that it can be used both in dynamic and static conditions of the network.
The results of buckling analyses show that determination of the optimum fiber angle orientation causes to improvement of the fiber metal laminated shell stability.
Based on the numerical results, a semi-analytical BEM framework was developed to model the aerodynamics and to estimate the performance characteristics of the system. It is implemented via an offline coupling mechanism.
Design and Implementation of a Text to Speech system for Kurdish Language with It's Quality Assessment
Investigating the Problems of Urban Traffic and Solutions Based on the Designing Exclusive Bus Lane (Case Study: Kashani-Amini Streets: Urmia City)
For FMC actuators that are closed as a loop, a Moving Reference Frame (MRF) is used and the flow inside the actuators is laminar.
Gaps among buildings changed based on characteristic of them with base isolation system it can give us a better point.
Changing math curricula to a performance-based approach and link of school mathematics to everyday life and students' experiences can reveal the usefulness of mathematics to them.
These findings confirm the capability of Persian gum for production of heat stable emulsions which may find various applications in food formulation such as Emulsion-gels.
Agricultural graduates must not only be equipped with technical and specialized skills, but also have skills to facilitate development processes, including proficiency in project management, communication and negotiation.
numerical simulation of turbulence flow URANS and RANS turbulence models jet in cross flow multi block method parallel processing
Since the use of drains is part of dam structure, therefore the application of filter material as a transitional zone is necessary.
The method becomes more efficient when there is a large number of model parameters involved in the inversion.
Numerical simulation indicates that the generated voltage could create a displacement about 9.3353 nm in the conductive diaphragm, which is enough to ascertain the correct drug delivery by the micropomp.
By a laboratory mixer, ratios of 2, 3 and 5 wt% nano clay particles with thermoplastic elastomer NBR / PP was mixed.
Normal curing agents increase the resin viscosity at room temperature due to crosslinking or curing reactions and the resin is gelled and finally cured.
Generally, in the conventional modeling strategy, the effect of gusset plates in providing beam-column connections rigidity and hence, improving the post-buckling performance of these frames is not taken into account.
Each service station produces uncertain but limited number of scraps which are independent from the other service stations.
Obtaining these two objectives simultaneously with each other in many cases are not possible.
Initially, a list of plant activities and the environmental components have been prepared and after that three EIA methods include modified Folchi, AHP and RIAM matrix, have been used.
In the present study, a real-time processing and cost effective BCI system have been designed and developed based on EOG signals.
This paper presents a new iterative algorithm for finite element modelling of an inversed design (outer rotor) circumferential flux cylindrical hysteresis motor.
Therefore, in this study, the synthesis of polyaniline-polyethylene glycol resin and its evaluation in the removal of cefazolin by the adsorption process were investigated.
MANETs Quality of service Hidden Markov Model discovery and search algorithm
An Analytical Solution for Finding the Deflection Point of the Wetted Perimeter - Discharge Curve by Hydraulic Methods for the Determination of Environmental Flow requirements
Evidence shows that the commercialization and market entry by start-up companies are not very promising.
Given its natural origin, it is obvious that the replacement of some synthetic reinforcements with these nanoparticles can reduce environmental pollution.
Results showed that among three factors including in-service training, records and education there is a meaningful relation between in-service training and occupational capability.
In fact, by using fuzzy rough sets the applicants" data are used regarding to have better prediction.
In concrete with fly ash, fly ash is replaced by 20% by weight of cement of mixing design has been used.
The Role of Government and Public Sector on Local Development of Innovation
Hence, managers at industry section, especially oil and gas industry, seek ways to control the production and distribution costs.
One of the major challenges in these networks is to keep nodes connected to each other while the target area is covered effectively.
In this paper, an adaptive fuzzy sliding mode control based on observer is presented to control the position of the two-axis gimbal system in the presence of the dynamics of DC motors.
In this paper, the space transformation method is used to transform a geographic instance of travelling salesman problem into a simpler Euclidean one, such that traditional heuristics can be applied more successfully.
Nonlinear Vibration Analysis of Micro Rotating Euler-Bernoulli Beams Subjected to Loading Based on the Strain Gradient Theory
However, in hyperspectral image analysis few studies have been carried out on dimension reduction or band selection for target detection in comparison to the hyperspectral image classification field.
Unit pattern generator can be divided to two subsystems, one is a rhythmic system and the other is a discrete system.
In all models, the response of structures based on the proposed procedure was reliable.
Normal and Weibull distribution have been used for simulation of PV probability model and WT output power respectively and GRE is used for peak load.
The Impact of Political Relations on Auditor's Opinion with Emphasis on Market Characteristics of Companies Listed on the Tehran Stock Exchange
Simulation and Stress Analysis of The 6-Cylinder Engine of The ITM 1500 Tractor Crankshaft
The fuzzy waste load allocation model (FWLAM) incorporate QUAL2E as a water quality simulation model and Genetic Algorithm (GA) as an optimization tool to find the optimal combination of the fraction removal level to the dischargers and pollution control agency (PCA).
As the use of the Internet by children and adolescents increases, there are concerns about their online safety.
By comparing the results of the two algorithms in the network, COA efficiency and excellence in sustainable building several power generator system to the CS algorithm is proved.
The contact time of 60 minutes of adsorbent and cefazolin was selected as the optimal time due to the completion of the adsorption capacity of polyaniline-polyethylene glycol resin and high removal efficiency.
Fracture toughness of specimens was measured at three temperatures of 0, -10 and -20°C using semi-circular bending (SCB) specimen test.
In this study, three provinces of Kermanshah, East Azerbaijan and Kerman were selected.
The study of this issue was performed in laboratory's temperature, with variation of different parameters like pH, adsorption time, amount of adsorbent and dye concentration.
The Relationship Between Entrepreneurial Skills and Radical and Aynkrvmntal Innovations in Small and Medium Enterprises (SMEs)
Mean Texture Depth and Skid Resistance of concrete surface, were measured using Sand Patch and British Pendulum tests, respectively.
The results showed that an increase in gas flow rate decreases the Taylor bubble frequency in the whole range of liquid flow rates.
Upscaling of the geomechanics parameters of reservoir using the kernel function method with adaptive bandwidth and comparing with the results of wavelet transformation
At the beginning, different sections of a sound and soundless SEN were prepared. Bulk density, apparent porosity, XRD, XRF and scanning electron microscopy was performed in this research.
On the other hand Self-Compacting Concrete is a high flowable homogenous concrete which can eliminate several common problems in normal concretes by means of its compaction under its own weight.
So in this research the sewage sludge ash has been used as an artificial pozzolan to produce self compacting cement based materials which could be evaluated as a revolution in the concrete industry.
Therefore, one of the most important challenges for decision-makers (DMs) is selection of final criteria, evaluation of scenarios, and choosing the preferable scenario for watershed.
In this study, a relationship between the independent electrical potential and charge density equations has been made in the form of a boundary condition for charge distribution on the dieleictic surface.
Determining of the optimum production quantity in supply chain with stochastic demand
According to the results of this study, to design vertical curves, the use of M-B dynamic model, according to more accurate simulation of the vehicle, delivers more realistic design.
The driver's visibility can prevent some accidents caused by road traffic at night.
The fuel flow to the engine can be controlled, the amount of thrust produced can be regulated and the engine can be turned off.
Flight path information should be provided to the processing unit to compensate motion deviations.
Studying the Adsorption Behavior of Copper (II) Ions from Industrial Waste Water Solutions Using Corncob Particles
-SEM images showed that 20 hrs milled samples were consisted of aggregates with mean particle size of 30 nm.
In this paper, the impact of combined politics (lending and feed in tariffs) has been simulated on the diffusion of the home-grown photovoltaic power plant.
Supply Chain Quality Management in Transportation Routing Using Genetic Algorithm
Furthermore, when the system requires load shedding, a new voltage-frequency load shedding is employed.
Testing algorithm on real data will show its performance and capability in remote sensing applications.
The input data for these simulations was obtained from tension tests in three different directions.
In the present work, the effects of coagulation bath temperature and LiCl content of the dope solution were studied with respect to the structure and performance of PVDF membranes.
Multidimensional spillways are important hydraulic structures for regulating water level and flow in canals, rivers and reservoirs.
In other dimensions, such as knowledge, technical, organizational, structural and infrastructure, there are signs that optimized conditions to benefit from new teaching methods.
Experimental results showed that in crude oils and synthetic solutions, whenever no asphaltene was precipitated, alkaline injection was effective but after asphaltene precipitation, alkaline injection did not have any considerable impacts on oil recovery.
The disagreement between predictions from the two methods was increasing by the decrease in the span length. The difference was more remarkable for vertical excitations as compared to the horizontal ones.
The partly unknown environment of the vast seas and the lack of prior accurate map of the workspace is one of the current challenges facing the autonomous underwater vehicle (AUV) in carrying out missions.
The proposed method is an adaptive method because the number of embedded bits in each pair of coefficients is dependent on the difference between them.
Expressionism active method passive method contemporary architecture course length specific lessons functionalism
Wireless sensor network (WSN) consists of some small and cheap nodes which could communicate together, process gathered data, and sense the environment.
Background and Objective: Architecture education is one of the most important issues in the development of architecture.
Even though incineration has been extensively studied by many researchers, a few bibliometric analyzes have been presented in this area.
In depth temperature profiles taken through the thickness of the samples, ablation and loss of mass data of the post-test surfaces were used to evaluate the effects of nanosilica.
In this paper, a hybrid photovoltaic-battery-diesel generator system is designed and optimized for a remote islanded electric network in the northwest regions of the country.
Therefore the achieved diagrams for each sense express the range of the proper juncture in the adjusting procedure for those two spatial territories.
The results show that crystallization in this bulk metallic glass has one stage crystalline precipitation process during continuous heating.
The main objective of this is to propose dynamic analysis for airport's performance.
In this method, the entire structure is a combination of two mass and stiffness subsystems with an isolator layer located in-between.
In this paper, based on the Gaussian Mixture Model (GMM) and estimating their parameters by Expectation Maximization (EM) algorithm, a new method has been proposed that firstly, the binary movement of the elderly is segmented from video sequences.
In this work, the effect of feedstocks and operating condition such as pressure, nitrogen injection, heating rate and recycle on the yield of production on delayed coking process has been investigated.
Recently there are studies in developing new methods to increase bacterial adhesion onto polymeric surfaces that are used in biological application such as cell-based biosensors.
The main objective of this study is providing the optimization path for UAVs in a way that maximizes the coverage of the area during flights.
Global water withdrawals amount to around 4,000 billion m3 per year and in some regions, especially the Middle East and Northern Africa (MENA) - desalination has become the most important source of water for drinking and agriculture.
Application of Ideal Adsorption Solution Theory (IAST) for Investigation of Separation of Carbon Dioxide / Nitrogen Gases on Nitrogen-doped Porous Carbon Synthesized from Nano-polyaniline
In the present study, the assessment process of the reliability of the ship structure under the two factors of fatigue failure and corrosion has been expressed using structural health monitoring data.
This research demonstrates the assessment of sustainable development of Sangan iron ore mine in Khaf with the use of environmental effects of this mine.
Simulation results show that all of the methods results in acceptable outputs but the accuracy of the cobined RLS-MLFE is much better than the others.
Findings indicate that propolis is an antimicrobial compound with high antioxidant properties and can be used in food and pharmaceutical industries.
To describe the plastic behavior of the FG plate, the von Mises yield criterion, isotropic strain hardening, and the Prandtl-Reuss flow rule are adapted.
Heavy rainfall, high groundwater level and the occurrence of earthquake can be the results of this phenomena .
The inflow hydrograph was routed for the system of stream-bandsar using MODCEL model and the time history of water elevation was obtained for each bandsar, separately. The effects of infiltration and evaporation were added to the model as well.
Also the kind of drainage has been considered as a variable parameter and horizontal and chimney drainages were used.
Polystyrene latexes with dispersion of nanoclay layers were synthesized by using in situ miniemulsion reverse atom transfer radical polymerization at 90 °C.
Then, we proved necessary and sufficient optimality analysis for this function.
The research method is correlational and survey data collection method has been used. The statistical population of the study includes 27535 Tehran's high-school students (Region 3).
(2009, 2011) model, which has been developed based on data from projects with similar geological conditions, and the differences between them are quantitatively explained.
The project involves 29 types of end-to-start (FS) activities and relationships with four types of renewable and limited resources.
Optimization of surface mounted axial flux switching generator with response surface method
Due to the standard deviation of 0.61, it can be concluded that the two databases differ significantly.
For this purpose, We choose the soil was classified in Unified Soil Classification System with CL mark (clay with low plastic limit).
Ship collision is one of the most significant marine accidents that threatens the safety of vessels, especially in the straits, waterways, and coastal waters.
The governing equations for fluid motion and immunosensor concentrating process are multiphysic coupled electric field, fluid flow, temperature field, diluted species transport and also binding reactions equations.
Magnetic Field Measurement Fluxgate Sensor High speed Sampling Data Acquisition
Learning Environment Evaluating the performance of Farhangian University graduates in mathematics education in terms of technology application based on the model of John Wales and Joseph Bundy
This measured strain is then converted into an electrical signal. Electrically measured strain as a function of an externally applied load forms.
Samples dry matter and starch content was higher for doses of 2 kGy and stored at a temperature of 6°C to 22.01 and 12.09%, respectively.
Another result of this study is the comparison of the effectiveness of each of the metaheuristic NSGAII and MOIWO with the defined index.
An Investigation on the Effects of Geometric and Dynamic Parameters on the Truck Lateral Deviation Due to the Braking Force Imbalance
Many factors may cause or jeopardize flywheel bolts failure e.g. surface roughness, friction coefficient at the interface, flywheel pin and bolts clearance, threads pitch, bolt preload and external loads acting on the joint.
But when both algorithms of Vegas and Reno are being used in the Internet, Reno acts better than Vegas.
Several stages of crushing and grinding are replaced by Autogenous mills in comminution circuits.
The experimental dataset is acquired by RADARSAR-2 from San Francisco Bay, California, in C band and at fine quad-pol mode, in 2008.
A self-hardening behavior is considered for the slip systems.
By adding a real-time clock IC (RTC) to angle differentiation circuit, dynamic plane has improved.
Results also showed an average particle size of 26 nm and a fairly large BET surface area of about 160 m2/g for these colloidal dispersions.
Results are compared with other references and Abaqus software. The effect of geometrical parameters on natural frequency and dynamic response of cylindrical shells under moving internal pressure are investigated finally and results for stiffened shells and unstiffened shells with different stiffeners are compared.
In this study, a six-lump kinetic model is proposed for describing the catalytic cracking of gas oil over Y zeolite.
In this research, pebble dam modeling will be done in Abacus software as well as model validation.
Injecting reserve power is a good tool to confront lack of power in this condition.
It is assumed that inlet velocity and temperature distribution in the micro channel are uniform.
Because, the mechanical alloying process is affected by many complex parameters, complete physical modeling of the process seems to be almost impossible in current condition.
The purpose of this study was to identify environmental risks imposed by coal washing plant of eastern Alborz (17 risk factors) and assess their impact on the 12 environmental factors (such as agriculture, ecology, etc)..
Gabion stepped weir is a simple hydraulic and environment friendly structure that can be used to dissipate flow energy in downstream of dams or to control downstream erosion of various structures.
Fuzzy Optimization Calculate of cost and revenue efficiency in projects with controllable and uncontrollable indicators in DEA and DEA-R: a (case study of Shiraz road construction projects)
In this paper, the process of designing and the optimization of PFD (one of the main part in PLLs) are proposed by using particle swarm optimization (PSO) algorithm.
In recent years, due to the use of data warehouses, the subject of materialized view maintanance is important.
One of the most significant issues in transportation planning is investigation of travel behavior in disaggregate or individual level.
Using of injector with micro hole nozzles, the atomization of fuel spray is improved and this leads to have better air fuel mixture and lower engine emissions.
Simulations" results show that decreasing the melt load time, and increasing molten Al temperature, mold temperature, mesh height, and struts" diameter increase the mold filling percentage.
The system matrices are supposed to depend polynomially on both the scheduling and uncertain parameters which are assumed to belong to intervals with a priori known bounds.
In this algorithm which is based on reinforcement learning, each agent uses an actor-critic neural network structure where the weights of these neural networks are tuned synchronously.
In this research, the micromechanical damage model was implemented as it relates microscale and macroscale rock behaviours more efficiently.
All experiments were performed at the threshold of bed material motion under clear-water conditions and uniform-sized bed material.
Maritime trade problem is more extensive than ever especially in the sensitive region of the Persian Gulf and Oman Sea that are oil trading hub in the world.
Likewise the obtained results showed that the natural frequenciy for the case of double curved panel is more than single curved and flat panel.
The surrogate model is in fact a simulated sample of the main model capable of approximately calculating the objective function in a fraction of a second.
Experimental comparison of microstructure and surface properties of Al / Al2O3 sample produced by powder metallurgy and spark plasma sintering methods
One of the most powerful methods of offline system identification is the sparse component analysis (SCA) method which is a subset of blind source identification (BSI) methods.
Also study on the macrostructure and microstructure before and after solution treatment showed that a significant difference in the increase of the homogenization can be obtained by applying the applied thermal treatment.
Determining of replicate sampling, calculating location and scatter matrices in multivariate robust statistics after eliminating non-normal samples and geochemical anomaly detection are suggested as the applications of these algorithms.
This is while a value of 97.2 ± 1.1% was obtained as the result of three tests in the hydrocyclone optimized in this experiment.
The desirable properties of steel and concrete can be used simultaneously to increase the strength of structural members.
The friction coefficient of AlCr2-Al2O3 cladding after 200 m of sliding distance was about 0.15 which reached to about 0.35 at longer sliding distances.
Whereas the use of computer simulations in engineering science began over half a century ago, only in the past decade simulation theory and technology have made a dramatic impact across the engineering fields.
With the expansion of e-learning, one of the important aspects of change in education is in the field of teaching and learning, including the relation between the teacher and the learner.
Plenty of methods have been introduced to treat the consumed water where the advantages and disadvantages of each method define their applications.
Such concepts are not explained in Iran's higher education curriculum, and almost no source of research has been published in Persian.
In this paper, a simulation model with the Arena software has been created for multilevel inventory control in the supply chain.
In order to obtain the lowest energy loss, the inlet should be parallel to the space between the two outlets with medium and large widths.
Keywords: Deep Architecture, Learning Convergence, Neural Network, Pre-training, Components
Free Vibration Analysis of Very Large Circular Floating Structures by Finite Element Method
The system developed in this study can be used to assess the quality of food liquids.
In this study, recognition rates of consonants available in vowel-consonant-vowel structure in hearing tests and two microscopic models will be investigated.
In this study, a discrete mathematical model of angiogenesis process with considering the penetration of blood flow through the vessels in the two-dimensional network is presented.
Challenges of Asteroid Mining from Techno-economic and Legal Points of View
In low switching frequency strategies, regulated DC sources along with the switching angles increase the system's degrees of freedom to effectively mitigate or eliminate harmonics.
The non-uniform flow distribution parameter increases by up to 1425% on using saturated oxygen and under the forced convection condition.
However, it seems that simultaneous evaluation of some parameters needs a comprehensive statistical analysis.
This method in some cases lacks precision. Hence, it is needed to improve the current method and develop accurate predictive models.
Sampling was done on ten steps, at various stages of Sanandaj water treatment during the year, and 50 samples were analyzed and results.THMS were measured with gas chromatography.
In addition, at this time, special attention should be paid to technical and vocational training as the main weapon of global competition.
In addition, the time that is required for air-re-oxidation to remove the cokes is equal to 20 minutes.
Nowadays, these networks, which are inspired by the biological nervous system, are also extensively used to solve a wide range of complex problems in civil engineering.
The saturation exponent was measured from primary drainage to secondary drainage with a four-electrode system at reservoir temperature with reservoir fluids on some cylindrical core samples.
In order to study the effect of coating layer thickness on the oxidation resistance, cycling coating process was employed.
It is assumed that there is a network connection in the system's feedback loop and that part of the information may be lost during transmission.
Investigation of the SWAT Model Efficiency to Determine Water Balance Components (Case Study: Semirom Mehrgerd Watershed)
The proposed method achieved 95.4% accuracy on frontal view and 100% accuracy on rear view images.
Results of this research can be used for optimum design of guyed towers in deep water and its special application in Caspian Sea can be considered.
Extracted stochastic models in this research can be used for runoff forecasting in future studies and research.
Fabrication and Investigation of Toxicity of CuFe2O4 Nanoparticles Synthesized by Combustion Sol-Gel Method for Hyperthermia Application
This method is performed on a part of two image logs (4 and 8 pads) of two wells located in two oilfields in the south of Iran.
In this paper, the equations needed to calculate the losses in both conventional VSC and CSC based and also VCSC based filters which has been recently proposed in valuable references, are derived.
Influence of Aggregate Grading and Macrotexture Creating With Tining Method on the Skid Resistance of Concrete Pavement
The numerical test cases are selected in adoption with experimental conditions that reported by one of the authors and ERCOFTAC institute for some transitional flows over flat plates.
In this study, the gilsonite powder was used as additive in percentages (0%, 10%, 20%, 30% and 40%) in bitumen.
Micro circular plate pull-in voltage analytical solution
Bridges are key elements in urban transportation system and should be designed to sustain earthquake induced damages to be utilized after earthquake.
Evaluation of Granular Activated Carbon Performance on MTBE Removal from Polluted Well Water by both RSSCT and Pilot Plant Methods
In other words, automation and control systems are considered as the brain and nervous systems of critical infrastructure and industrial systems.
23 of them are karstic springs that are located in the limestone of Qom formation, Lar formation and the limestone of Cretaceous.
modeling Decision making OPEC production level Oil Price Neural Network Game
The results obtained by the proposed method show that the gravity loads may affect the tunnel convergence, especially when the plastic zone is wide.
In this study, for correction of noise a method based on the spatial momentum adjustment is introduced.