فهرست مطالب mohsen fallah

The aim of this study was to investigate the relationship between Total Quality Management with Organizational Citizenship Behavior and Organizational Justice in employees of departments of sports and youth of Yazd province. The census sampling method was used and the sample size was 168 people. Data collection tools were the standard questionnaires of Spinval Total Quality Management (2001), Podsakov's Organizational Citizenship Behavior (2000) and Niehoff & Moorman's Organizational Justice (1993), their validity was confirmed by professors, and the reliability of the questionnaires was obtained using Cronbach's alpha method. From descriptive and inferential statistical methods with SPSS software and the laser were used. In the descriptive statistics, the frequency, percentage, mean and standard deviation and in the inferential statistics, the Kolmogorov-Smirnov test, correlation coefficient and structural modeling were used. The results in the final model showed that the impact of Total Quality Management on Organizational Citizenship Behavior is equal to 65%, the impact of Total Quality Management on Organizational Justice was 94% and the indirect impact of Total Quality Management on Organizational Citizenship Behavior was 36% with the mediation of Organizational Justice, all relationships were significant at the 0.05 level. Therefore, it can be said that the managers of the Ministry of Sports and Youth should pay special attention to the Management of Total Quality in order to create Organizational Justice that develops and promotes Organizational Citizenship Behavior.

The purpose of this study is to identify the dimensions of the business system in the re-engineering model in the public banking industry with emphasis on customer orientation. The present study was qualitative and used grounded theory. Therefore, the research method is fundamental in terms of purpose. The population studied in this study includes bank managers and experts working in different sectors of the banking industry in Tehran. Sampling is unlikely and will continue until theoretical saturation is reached, based on which 11 people were interviewed. To analyze the data, data coding (open, axial, selective) was used, which includes taking notes during coding, the relationship of categories with each other, and finally the final formulation of the theory. The results showed that the five dimensions or factors of providing the maximum benefits to the banking industry stakeholders, speed and cheapness of services, application of rules and standards, observance of banking management frameworks and creation and improvement of methods leading to banking industry customers can re-engineer the entire business Iranian banking should be effective by emphasizing customer orientation.

In this work, the combined cycle of a helium reactor gas turbine with an organic Rankine cycle is studied and compared from the perspective of conventional and advanced exergy analysis. Using Equation solving engineering software, modeling of this cycle has been done and the results of conventional energy and exergy analysis have been obtained. Then, to determine the appropriate prioritization of cycle component improvement from the perspective of advanced exergy analysis has been studied. In fact, advanced exergy analysis provides accurate information about the real potential for system performance improvement by dividing the exergy destruction of each component into endogenous, exogenous, avoidable, and unavoidable components. The results of advanced exergy analysis show that by modifying and upgrading the components of the system, 19.1% of the total exergy destruction of the system can be reduced. According to the advanced exergy analysis, the improvement priority belongs to the compressor and then to the reactor and gas turbine. However, from the conventional exergy analysis, the reactor's exergy destruction is greater than that of the compressor and the priority is on the reactor. In addition, based on the prioritization of advanced exergy analysis, it is possible to increase the cycle exergy efficiency from 75.21% to 82.51% and the cycle energy efficiency from 51% to 56.22%.

In this study, a new cycle of cogeneration power, heating and cooling integrated with fresh water production system by multi-effect desalination method and solar system has been evaluated. Energy and exergy analyzes have been used to evaluate system performance. In order to generate power, the gas cycle has been used as the main stimulus and the organic Rankin cycle has been used as the downstream cycle. The results of this study show that due to the addition of the solar system in the vicinity of the organic Rankin cycle, the increase of the organic Rankin cycle efficiency improves from 38.778% to 44.592% to 5.813%. In addition, at constant cooling rates, the cooling performance increased by 1.275 percent from 1,596 to 1,617. Also, due to the high production capacity of the gas turbine cycle compared to the production capacity of the Rankin cycle, the addition of the solar system to the base cycle (without the solar system) increases the thermal efficiency and exergy by 0.638 and 0.085%, respectively. Also, distillate flow rate increases 726.8 Ton/h by using reverse osmosis system.

Reactivity Controlled Compression Ignition (RCCI) engines are new ideas for decreasing the emissions and fuel consumption in Compression Ignition engines. In this study, numerical study of the combustion and emission characteristics on a RCCI engine with dual fuel natural gas/diesel and methane/diesel are investigated. The numerical simulation is done by Converge software. The natural gas is composition of methane, ethane, propane, carbon dioxide, nitrogen and oxygen. The results were compared with the pressure and heat released in-cylinder, mean gas temperature, emissions and gross power with dual fuel natural gas/diesel and methane/diesel. The results showed that the maximum pressure, mean gas temperature and heat released in-cylinder with methane/diesel are about 5%, 2% and 3% higher than natural gas/diesel, respectively. NOx and Soot emissions with dual fuel natural gas/diesel are about 12.5% and 12% lower than methane/diesel, respectively. Other emissions including unburned hydrocarbon (UHC) and carbon monoxide (CO), was relatively high. Also, the gross engine power for dual fuel methane/diesel was about 4% higher than natural gas/diesel.

The purpose of this study was to design a model for mediating the role of organizational citizenship behavior in relation to causal jihadi management and organizational virtue with the political behavior of employees of the Ministry of Sports and Youth. The research method is descriptive-correlational and applied in terms of purpose. The statistical population of this study was the employees of the Deputy for Management Development and Support Resources of the Ministry of Sports and Youth and its number is 290 people. According to Cochran's formula, the number of samples was 127. The data collection tools of this study were Hejazifar Jihadi Management Questionnaire (2015), Organizational Virtue of Cameron et al. (2004), Shaker Ardakani Organizational Citizenship Behavior (2015) and Amir Sheibani (2001) Political Behavior. Structural equation modeling method under Smart PLS3 software was used to investigate the research model and validate the hypotheses. The results showed, it was found that the variable of jihadi management has a positive and significant effect on organizational virtue. Also, the positive and significant effect of organizational virtue on organizational citizenship behavior and organizational citizenship behavior on employees' political behavior was confirmed. But the effect of jihadi management variable on citizenship behavior was not confirmed. Regarding mediation relations, it was found that organizational virtue mediates the effect of jihadi management on organizational citizenship behavior. Citizenship behavior also plays a mediating role in the relationship between organizational virtue variables and employees' political behavior. However, the effect of mediating the variable of organizational citizenship behavior in the relationship between jihadi management and political behavior of employees was not confirmed.

In this study, the effects of nozzle angle variations on vertical axis on nozzles plane has been investigated. Cooling and heating are one of the most important industrial processes that are widely used in industry, for this reason multiple impinging jets have been considered to study by many researchers due to their efficiency and high heat transfer. Simulations has been carried out using SST k-omega turbulence model. First, the cooling by elliptical nozzles are investigated to show increasing their efficiency compare to circular nozzles. Then the arrangement and orientation of the nozzles have been investigated. The obtained results showed that the nozzles angle variation, in some cases can lead to increase in the thermal flux. The modeling results showed that when the diameter ratio are equal to 10 and 4, the change in angle of nozzles had a negative effect on the heat transfer value, While in the diameter ratio of 3, changing the angle of the nozzles increased the heat transfer by about 3.71%. Also, numerical studies showed that changing the angle has little effect on creating heat transfer uniformity.

One of the most important foundations of the nutrition system in the Holy Quran is ontological. This research intends to answer the basic question with descriptive and analytical method, what are the ontological foundations of the Quran nutrition system? And what role do they play in the health of the human body and soul? The ontological foundations of the nutrition system in the Holy Quran are divided into a general division into the foundations of metamaterial beings and material beings. The most important principles of metamaterial beings are: monotheism and belief in intangible beings. Wichat monotheism that has foundations; Monotheism in creation, monotheism in legislation are monotheism in divine sustenance and grace. That affect the health of the human body and soul. According to monotheism in creation, all creatures strive to feed man, and man benefits from them for the health of body and soul. Human health has prescribed halal and haram foods that halal foods are useful and harmful to human health, the rules of slaughter, hunting, buying and selling, etc. are from the grace of God on the servants that affect human health. . According to the verses and hadiths of Satan, by tempting man to consume forbidden foods, he endangers the health of the human body and soul, and the divine angels try to prevent it.

In this paper, the energy harvesting by porous beams exposed to the external fluid flow is studied. The electromechanical nonlinear differential equations of the transverse vibration behavior of porous beams exposed to external fluid flow are derived using the Euler-Bernoulli beam theory. A porous beam with concentrated mass which is equipped with a piezoelectric layer at its upper surface is considered energy harvesting. After numerically solving the governing nonlinear equations, the effect of different parameters on the generated energy is investigated. The results show that in the lock-in area, the maximum amount of energy is taken. Also, the porosity distribution has a significant effect on the maximum amplitude of the oscillations as well as the energy harvesting by the porous beam. In addition, for electrical resistance of 1000 kΩ, the maximum voltage generated for the beam with symmetrical porosity distribution in the form of wall stiffness, asymmetric porosity distribution, and uniform porosity distribution is equal to 0.39 V, 0.44 V, and 57 V, respectively, which indicates the highest energy harvesting capability of the beam with the porosity distribution of the third type.

In this paper, a new adaptive control system is presented for suppression of boring bar chatter in internal turning process. The vibration control system is consisted of electromagnetic actuator, boring bar, accelerometer and a novel adaptive control algorithm. The controller gain is adaptively adjusted according to the operating condition of actuator and the level of boring bar vibrations. Such that the consumed actuator power always remain proportional to the intensity of chatter vibrations due to cutting process. As a result, the gain adaptation algorithm is indirectly developed by using the dynamic characteristics of actuator-boring bar assembly. Firstly, the tunable parameters of adaptive controller are optimally identified by conducting impact tests. Secondly, the performance of adaptive controller is investigated during the internal turning of Aluminum alloy 6063-T6. The presented adaptive control system can improve the dynamic stiffness of boring bar as well as the critical limiting depth of cut on stability chart by at least 10 folds. Due to optimal performance of the adaptive controller, the dominant magnitude of boring bar’s power spectral density is successfully attenuated up to 78 dBs. Also, the roughness of cut surface is reduced from above 40 micrometers in control-off cutting test to below 5 micrometers in control-on test. Moreover, the actuator cost is considerably reduced for adaptive controller, in comparison to the optimal constant-gain integral controller. As a result, by using the proposed adaptive control algorithm, a smaller electromagnetic actuator with lower power capacity can be used for chatter suppression at the same cutting conditions.

In this paper, the superconducting carbon dioxide cycle is re-examined and compared from the perspective of advanced and thermoconomic exergy analysis to identify real potentials and prioritize the improvement of cycle components. In advanced exergy analysis, in addition to calculating the total exogenous exergy destruction for each component, the contribution and effect of each of the other components and their combination in causing this inefficiency have also been identified. In thermoeconomic analysis of the system, the unit cost of the product, the cost of investment and the cost of destroying the exergy for the components of the system are calculated. Improvements based on advanced exergy analysis are assigned to high temperature recuperator, turbine, compressor 1, preheater, low temperature recuperator, compressor 2 and reactor, respectively. Also, based on thermoeconomic analysis, improving the turbine and reactor is not economically justified. However, the results show that even by abandoning the improvement of these two components, due to their high economic cost and by improving other components of the cycle based on the prioritization of advanced exergy analysis, it is possible to increase the efficiency of the exergy cycle from 4/29/47. There is 63% to 47.4% and cycle energy efficiency from 34.15% to 45.84%.

In this paper, a new design of a wide band rectangular microstrip patch antenna in Ku-band using multilayered dielectric structure is presented for broadband RADAR and satellite applications. In this compact design, a conductor pin is used to excite the radiating patch. The parasitic patch is separated from the radiating one by air gap. The obtained 10-dB impedance bandwidth of the antenna is improved to more than 22%. The variations in the measured gain of the proposed antenna are less than 1 dB in the whole bandwidth. The simulation and fabrication results of the proposed antenna are in a good agreement.

In this paper, the thermal performance of four common insulators in two internal and external insulation systems is investigated for the ASHRAE setpoint range by applying detailed numerical simulation and Anti-Insulation phenomenon. Anti-Insulation phenomenon and consequent extra load on the HVAC system can occur following the thermal insulation of a building if proper temperature setpoint is not selected. In the next step, the proper setpoint is analyzed under simulated building conditions, and all related criteria are studied for this temperature. Also, continuous and intermittent operations of the air conditioning system are investigated. Moreover, the assessment of the environmental benefit of wall insulation is performed by evaluating greenhouse gasses emission payback period and social cost saving. A residential building is simulated in the EnergyPlus software for the case study. Results show that Anti-Insulation occurs approximately at 22 ºC. Both external and internal insulations lead to a significant reduction in energy consumption. Nevertheless, the external insulation shows a bit more reduction. Intermittent operation outperforms the continuous operation by 8 % on average. The insulator’s production phase is considered in the analysis of the insulation environmental benefits. Results show that, in this case, the prioritization of insulators would be different from that case in which this process is not considered. According to results, in terms of social costs, applying thermal insulation to residential buildings is necessary.

The purpose of this paper was to design a business re-engineering model in the banking industry with an emphasis on customer-orientation. This study was an exploratory mixed method with two qualitative (Grounded Theory) and quantitative sections. The statistical population in the quantitative and qualitative sections was the elites of the banking industry of Iran with a PhD in Business Administration, and managers and experts in the banking industry, respectively. In the qualitative section, 11 elites of the banking industry were selected by the theoretical sampling method and in the quantitative section, a sample of 385 individuals was selected based on Morgan Table and using the probability sampling method. In the qualitative and quantitative parts, the semi-structured deep interview and the questionnaire were used to obtain the data. The validity and reliability of the qualitative part were confirmed by the feedback of the participants and receiving the opinions of colleagues. The validity of the questionnaire was confirmed using the convergent validity and its reliability was approved using Cronbach’s alpha. The coding method was used to obtain the research hypotheses and the structural equation modeling was used to investigate the research hypotheses. The result of the research was the achievement of a model that includes 26 variables and five important factors (providing maximum benefits to stakeholders, the speed and cheapness of services, the application of rules and standards, the observance of banking management frameworks, and the creation and improvement of banking procedures leading to the customers of the banking industry) and confirmed the positive impact of each of the five model factors on customer-oriented banking industry.

It has been shown over several decades of radar research that the exploitation of diversity in a number of domains such as space, frequency, time, polarization, and, recently, waveform can provide increased agility, flexibility, reliability, and capabilities to the radar system. However this is often achieved either through efforts in system design, increased hardware complexity, or by employing additional resources. In the frequency diverse array (FDA) the subsequent antenna elements are fed with stepped discrete frequencies. So a range-angle dependent radiation pattern is made possible . It is possible to apply different frequencies with different patterns to the elements of FDA to achieve different radiation pattern. In this paper, a frequency diverse array with non-uniform inter-element frequency offset called quadratic-FDA has been proposed, that its variation is a function of physical distance of elements from the first element. To produce the coefficient of the frequency offset two Frequency offset generators has been proposed. In The first proposed method uses linear distance as a input of function and the second one uses multiples of the roots of the Chebyshev polynomial. The proposed strategy provides a non-periodic beampattern, with a maximum that can be steered in space by selecting appropriate excitation weights of the antennas. This single-maximum beampattern, in contrast to multiple-maxima beampattern of the other forms of FDA, can help to further reject range-dependent interferences, causing improved SINR and increased detectability

Increasing the rate of neoplasms in industrial societies and its wide variety among ornamental and wild fishes in both fresh and  salt waters are important. The effect of carcinogenic  factors and  the role of virus in tumor  formation  should be considered. In this study 10 3-month-olds Koi and Marble strains of fresh water Angelfish (Pterophyllum scalare), , with  cauliflower lesions masses were admitted and the tissue sampling were done. Subsequently histopathological study showed, papillary growth pattern, proliferative epithelial, hydropic degeneration, irregular collagenic bundles and fibroblasts under epidermis were diagnosed as  fibropapilloma.  Regarding prevalence of neoplasms in lips and liver, and as a result, feed ingestion and digestive  problems, loss of decorative aspects and economical damage, consideration, prevention, and recognizing  predisposing factors, are suggested. Despite the prevalence of neoplasms in lip, this is the first report of lip neoplasms in this species strain in Iran.

The present article deals with analytical modeling of boring bar dynamics as well as identification of unknown parameters for the dynamic model. Experimental modal analysis is utilized to measure the Frequency Response Functions (FRFs) of cutting tool. Using the analytical methods of modal analysis theory¡ dynamic parameters of boring bar (i.e. natural frequencies¡ damping ratios and modeshapes) are extracted from curve fitting of experimental FRFs. A new physical configuration is proposed¡ in order to accurately estimate the dynamic response of boring bar in time/frequency domains. In the proposed dynamic model¡ boring bar is modeled as an Euler-Bernoulli beam with flexible support and tip mass. The mechanical properties (i.e. modulus of elasticity and density) are considered to be constant along beam length. The flexibility of boring bar''s clamping interface is modeled by linear translational/torsional spring elements. Particle Swarm Optimization (PSO) is utilized to identify the unknown parameters of dynamic model. The parameters include translational/rotational clamping stiffness and dimensionless correction factors for boring bar''s diameter/tip mass. These parameters directly control the mass/stiffness distribution of proposed dynamic model. The FRFs obtained from updated model of boring bar are compared with experimental FRFs. It is shown that¡ by optimal selection of unknown parameters¡ boring bar FRFs can be accurately calculated at any point along its length. Hence¡ by incorporating the dynamic model of passive/active actuator into the proposed dynamic model¡ the stability lobes of dampened boring bars can be predicted.

Design, simulation and optimal selection of cosine-linear frequency modulation waveform (CNLFM) based on correlated ambiguity function (AF) method for the purpose of Synthetic Aperture Radar (SAR) is done in this article. The selected optimum CNLFM waveform in contribution with other waveforms are applied directly into a SAR image formation algorithm (IFA) and their quality effects performance in comparison to each other is analyzed. The quality performance analysis includes both the qualitative AF diagrams and the objective image quality metrics assessments. Then, by changing the SAR system parameters based on the proposed CNLFM waveform, other quality metrics are also derived. The simulation results verifies the robustness of the proposed CNLFM waveform implementation as a suitable NLFM alternative for LFM waveform.

Against the range-dependent accuracy of the tracking radar measurements including range, elevation and bearing angles, a new hybrid adaptive Kalman filter is proposed to enhance the performance of the radar aided strapdown inertial navigation system (INS/Radar). This filter involves the concept of residual-based adaptive estimation and adaptive fading Kalman filter and tunes dynamically the filter parameters including the fading factors and the measurement and process noises scaling factors based on the ratio of the actual residual covariance to the theoretical one. In fact, due to the unknown and fast-varying statistical parameters of the radar measurement noises and their nonlinear characteristics, applying a conventional Kalman filter to INS/Radar data fusion yields a low performance navigation and in-flight alignment. The Monte Carlo simulation results of the integrated navigation system on an interceptor missile trajectory indicate the new algorithm has an effective performance in face of nonlinearities and uncertainties of the tracking radar measurements. these results allow to know whether the fine in-flight alignment and high performance navigation can be possible for the long-range air defense missile using the low-cost INS/Radar system without aiding global navigation satellite system signals or not.

Resistance-type exercise training has been shown to represent an effective interventional strategy to increase muscle mass, strength, and function in diabetes. The myokines released from skeletal muscle have multiple metabolic and hypertrophic effects. The purpose of this study was to investigate whether the resistance training has an effect on IL-6 and TNF-α inflammatory cytokines in skeletal muscle of diabetic rats. Rats were divided into the control, training, diabetic control and diabetic training groups. Training groups performed the resistance training consisted of climbing a ladder (1 m) with increasing weight added to the tail. The IL-6, and TNF-α levels were measured in extensor digitorum longus (EDL) skeletal muscle using the ELIZA. The results of this study showed that the expression of IL-6 and TNF-α in EDL skeletal muscle was increased in diabetic rats. Resistance training did not change the levels of inflammatory cytokines in EDL skeletal muscle. Moreover, a significant correlation was found between the cytokines and glucose levels. Resistance training had no significant effect on the level of inflammatory cytokines in skeletal muscle of diabetic rats. The increased level of inflammatory cytokines and myokines could act as a compensatory mechanism for skeletal muscle in diabetes. It seems that the training exercise alone could not change the myokine level for skeletal muscle.

Scientific productions indexed in major databases such as Scopus are important criteria for ranking the medical universities.Publication of these scientific productions leads to increase their visibility and citation. The purpose of this article is to investigate the publication and citation status of Gilan and Golestan Medical Sciences universities’ by end of August 2011 designating their Hirsh index.

This study is a descriptive one that was conducted through Science metric Attributable to both the university and all papers published in the Scopus database and were indexed under review. The findings were presented using descriptive statistics.

  Golestan University of Medical Sciences faculty members with the rank of associate professors are13 and they have the maximum number. The faculty members with rank of instructor are 9 and they have the lowest number .The Gilan University faculty members with the highest rank of professor are 5 and have the maximum number. The faculty members with rank of instructor and associate professor have the lowest number.

According to Scopus,  the articles of the faculties of Golestan University of Medical Sciences were 502 titles ; and  the articles of Gilan were 262.  The research population consists of 444 faculties of both Universities among them 103 faculties belong to Golestan university and 341 faculties belong to Gilan university. 32 faculties of Golestan university have Hirsh Index (31.6%) and 43 faculties of Gilan University have Hirsh Index (12.61%).
These 32 facuties of Golestan have 502 articles, 1080 citations and their H index is 94. But the 43 faculties of Gilan University have 262 articles, 689 citations and their HIdex is 82. So we can conclude that as well as our citation is , our H Index will go up. Golestan University faculties are less, but their H index is higher namely their scientific potential is higher.

In this study, the potential of controlling engine cooling temperature has been investigated experimentally to reduce NOx emissions in heavy diesel engines. Experiments have been done on 90°C and 70°C cooling temperatures that lower temperature obtained via larger radiator and setting its thermostatic valve. Also, the effects of injection timing and the percentage cooled EGR simultaneously have been studied in order to trade-off NOx reduction and increasing other pollutants such as Soot, CO, HC and fuel economy. Experimental results which related to amount of pollutants and fuel consumption by altering the engine cooling temperature, injection timing, and the percentage of cold EGR shows that NOx emissions reduce 17% averagely also fuel consumption decreases negligible.

Power generation by Pressure Retarded Osmosis (PRO) method is a reliable approach for future. In this method, water from feed (low-salt or clean water flow) permeates through a semi membrane into a consentrated solution or a high pressurized salinity flow, such as sea water causing additional increase in its pressure and flowrate. Then this high pressure flow passing through a water turbine causes rotation of generator shaft and generates electric power. In this paper, in addition to investigate PRO power plant performance considering working condition of Iran, a PRO model is studied to predict water flux and power density under specific teoritical conditions. Model is based on empirical estimation of membrane water permeability coefficient (A), the membrane salt permeability coefficient (B) and suspended particles in solution resistivity (K).Results show that the PRO method with optimized membrane has higher specific power and greater efficiency than previous models. So, there is a growing trend into producing power via this new approach.

Every international crime has often wide victims. It may be asked from some of them to give testimony in respective courts and do as a witness. This article discuses about different kinds of support and protection from these vulnerable witnesses in the light of international documents (constitution of Rome, criminal procedure rules, provisions and evidence of ICC office).the judicial precedence in the case of international criminal tribunal for former Yugoslavia and Rwanda, then criminal evidence (proof) and procedure in ICC have also been explained. Appose to current provisions of constitution of special Tribunals, members of a family and their close relatives may be supposed as victims without any need to unlimited expanding the concept of “injuries” to cover indirect injuries.