In this study, a forward converter with phased shifted active clamp is presented for the driving of magnetron lamp (4 kV, 300 mA, 1000 ± 40 W). The presented converter is of a boost and high-gain type. To reduce the voltage stress, the active clamp structure is used. In addition, using the clamp switch phase shifted method, while the maximum flux density of the transformer CORE retains power, it is possible to increase the time the main key is turned on. Thus, with the same nucleus, the possibility of increasing power transmission is created. Therefore, in the same power, the volume, weight and price of the CORE used should be reduced. Also, a series resonance circuit provides soft switching conditions. Maximum and average power supply power is controlled for minimum LOSSES. The power supply delivers about 1 kW with an average power of about 250 W by adjusting the time the converter is enabled. Other advantages of the proposed circuit include simply power circuit, reduction of the number of switching elements and reduction of switching LOSSES. The design results have been simulated and verified by PSCAD software.

CORE banking system is a fundamental solution for the centralized CORE  of  banking business, the main solution to centralize all data and critical processes. So that the changes create new services, responding to customer needs and also provides the necessary information to better manage organization in less time and with most Accuracy. But, implementation and deployment in bank faces with serious challenges.  This Thesis also outlines the dimensions and angles of the banking system, establish Obstacles of this system in Sepah Bank were discussed. the main obstacles classified to four financial, technological, social / cultural and managerial. And the effectiveness of each system was investigated. this research done at the 150 community levels involved in deploying a CORE banking, including Sepah Bank, Bank Subsidiaries and contracted personnel. A questionnaire with 26 questions was distributed among 85 cases of which 60 were full questionnaire. Questions were designed on the basis of the whole five-point Likert situation. According to prove normal distribution of data T-parametric tests were used to prove the hypothesis. The results showed that technological and managerial factors in the establishment of a CORE banking system are more effective at Sepah Bank, in priority. However, the influence of social / cultural and financial establishment of a CORE system of banking in Bank Sepah was not proved.

Electrical motor are the ubiquitous workhorses of the industry, working over wide range of conditions and applications. Modern motors, designed to exact ratings using new materials and improved manufacturing techniques, are now much smaller but have higher loadings. They are being operated much closer to the point of overload than ever before. To ensure a satisfactory lifespan for the motor, temperature rise must be limited to the safe values. This paper proposes an analytical approach to estimate CORE LOSSES of induction motor supplied by either harmonic content or voltage unbalance source. A model based on the thermal lumped parameters is introduced and used to predict the insulation lifespan of induction motors. Lumped parameters network of the motor is developed based on dimensions of the motor, thermal resistances, thermal capacitances, and loss sources. Then, the model is used to estimate the temperature in different parts of the machine and its insulation lifespan. Finally, the predicted results are verified by experiments.

Introduction: Application of proper approaches as a logical framework for creating CORE curriculum prevents making additional information in curricula. This study aimed to introduce some useful approaches for determining CORE curriculum in medical science.Methods: This review study was done by electronic searching (PubMed, ERIC, Google Scholar) as well as manual searching (library resources). key words were CORE curriculum, approach and outcome-based curriculum.Results: 105 papers were obtained.32 cases were eligible according to considered criteria. So far, Curriculum planners have adopted or proposed several approaches for determining CORE curriculum in medical education. This review introduced some effective approaches in medical education.Conclusion: Curriculum planners need to use effective approaches in medical education in order to provide essential and required content for learners according to community needs. It is necessary for them to consider curriculum revision and reduction of extra curriculum content.

Introduction. The effect of reformatory reduction on seal and retention of the cemented post with zinc phosphate cement considered in four different times.Methods. After tooth preparing, supply of molding post and cement, the reformatory reduction performed on samples except control group. The starting times are as follows: 1. Immediately after cementing; 2. Six minutes after cementing; 3. One hour after cementing; And 4. 24 hour after cementing. Thensamples are kept in normal saline, in 37c,moisture 100%. In order to close test qualificauon to normal condition of mouth, after reduction completion, the samples go under the termocyclic operation. Then dye penetration, sample incision and amount of leakage, considered by reflective microscope.Results. The dye penetration"s average in different groups has has meaningful difference. The group which has no meaningful difference with control group, is that on which reformatory reduction has performed 24 hour after post CORE cementing. The others have meaningful difference with control group. There is no meaningful difference between two consecutive groups on which reformatory reduction performed in different times.Discussion. We recommend cememted post-CORE after final setting of cement

Corn harvesting involves some LOSSES. These LOSSES result in decreased benefits. It is almost impossible to lower LOSSES to zero percent but it can be controlled in an acceptable level. As a result of this research, appropriate methods are introduced to decrease LOSSES and reduce waste. In this project, LOSSES in different part of combine were measured and evaluated according to the available standard method (ASAE S396.2 & S343.3).Harvesting LOSSES include preharvest and during harvest LOSSES comprising ear loss and kernal loss in the header, cylinder and cleaning LOSSES.This project was conducted on farmers’ lands in Gazvin province. Some assessments related to yield factors were evaluated in different parts of farm with specified area, e.g. Plant height, ear number, stem diameter, ear diameter, cob diameter, row/ear and seed/row. All LOSSES evaluated in three treatments which they were: seed moisture content (w.b.) in three levels of 19%, 23% and 27%, ground speed in three levels of 0.8, 1.2 and 1.6 ms-1 and cylinder speed of 400, 600 and 800 rpm. The split plot experimental design based on the randomised complete block design (RCBD) was used to evaluate treatments.Measured LOSSES compared with standard values to introduce the proper methods to decrease LOSSES and proper adjustments. The results show that appropriate seed moisture content, cylinder and ground speed were 23%, 400 rpm and 1.2 ms-1, respectively. They had minimum total loss whichWAS 1.55%, 2.65% and 2.34%, respectivily. The results also show that there was an ear loss in preharvest loss (because of bad weather condition) that was 0.95-5.42%, also kernal loss on the header and cylinder loss which all related to improper adjustment of combine but total loss was in an acceptable level and standard. It was variable from 1.55% to 4.02%. Other parameters such as using inexperienced driver, improper combine adjustment, and also nonuniformity of field and ear moisture content in different parts of field prevent using the outputs and recommendations of this research.