Weirs are structures used to measure discharge and flow control in canals and dams. Economically, a significant part of the cost of building a dam is due to weirs. By investigating different types of weirs, researchers have concluded that the piano-key weirs have two major advantages over other weirs. One of the most important advantages of a piano-key weir is that this kind of weir needs less space to run and can have smaller dimensions. Another important advantage of this type of weir is the ability to transmit more water than other weirs, which can safely protect the dam. A review of previous studies suggests that some studies have been carried out in the field of piano-key weirs. But, there are not sufficient studies on the performance of these types of weirs in curved plans as well as their hydraulic performance improvement factors. The main objective of the present research is to investigate the factors that can improve the performance of curvilinear piano-key and increase their hydraulic efficiency. In order to verify the results of the numerical model, the Anderson (2011) laboratory model has been used. Numerical modeling has been done for 5 inflow discharges in FLOW3D software. In order to quantitatively compare the results of the numerical model with laboratory values, some error criteria including R2, MAE and RMSE have been used. The values of these parameters were 0. 9985, 0. 00804 and 0. 009521, respectively. Results showed that numerical model has acceptable adaptation to experimental results. In the next part of the paper, factors that can be effective in increasing the discharge capacity of the curvilinear piano-key weirs are investigated and analyzed based on the discharge coefficient curves and contours. In the first step, effect of crown shape on weir hydraulic performance was investigated and for this purpose three curvilinear piano-key weir models with rectangular, triangular and elliptical shapes were designed. Results showed that the weir with triangular crown had up to 60% higher discharge coefficient than the elliptical-crown weir and up to 65% more than the rectangular-crown weir. According to the general pattern of flow, in weirs with rectangular and elliptical crowns, the flowing flow clinging to trunk weir is discharged to downstream, while in weir with triangular crown, adhesion among flow and trunk of the weir is decreased. This factor increases discharge capacity of the weir with triangular crown in comparison to the other two weir types. In the next section, effect of existence or absence, as well as the geometric shape of the bundle, on the performance of these types of weirs was investigated. For this purpose, three weir models with cubic rectangular, half-cylindrical and prism bundles were designed and compared with a weir without bundle. Results showed that the bundle improved hydraulic performance of the weir. Also, for all the studied range of hydraulic heads, weir with half-cylindrical bundle had higher discharge capacity than the other weirs. The reason is that in the weir with half-cylindrical bundle, the sudden change in the angle of flow lines before collision with the bundle occurred further away from the end of the bundle, which caused flow entrance with less disturbance to the weir keys. Finally, the impact of a parapet wall on the weir operation was investigated. A 1. 3 cm high parapet wall was added to the weir crown. Results showed that addition of the parapet wall increased the water level in the weir crown area and resulted in decreasing the velocity of approaching flow to the weir structure. Reduction of the velocity decreases the possibility of flow blockage and the flow has more time to run away from the weir keys. The set of these factors cause the weir with parapet wall to have higher discharge capacity than weir without the parapet wall.

As entering into third millennium and emphasizing on some factors such as awareness, mentality and freedom, humanism and more attention on human force in organization, global cognition view and anthropology of managers have changed. So organizations are pursuing individuals without partiality and parochialism and believers of morality and spiritual values. So the aim or this research was to present an" Effective improvement plan of managers using spiritual intelligence and professional ethics". Statistical sample was 200 individuals selected from 1388 statistical population in secondary schools of Mashhad city. Research methodology was descriptive and survey and correlation type. Data collection instruments were king's spiritual intelligence questionnaire, professional ethic questionnaire and effectiveness questionnaire. Data analysis was done using structural equations and confirmatory factor analysis. The results show that there is a positive and significant relationship between spiritual intelligence and professional ethics with managgers effectiveness, as spiritual intelligence factor has been 0. 65 with 12. 25 significance level as well as professional behavior factor which is 0. 39 with 11. 02 significiance level. Also results of structural model in standard estimation case shows the positive and significant relationship between professional behavior aspects (group activity, loyalty, professional responsibillity, scientific commitment and financial responsibility) and spiritual intelligence aspects (critical contemplation, self-meaning generation, awareness extension) with effectiveness.

The change of Productive Technology(P.T) to Informative Technology (I.T) is the start point of a new stage in human life, which is creating a novel shap of society, called cyber-society. Therefore it"s very important to know the characteristics of this new frame work and plan a reasonable and scientific development program to assure the balanced national-wide informative improvement. In this paper defining informative development and its various aspects, the informative plan of a few developed and under developed countries has been described and the main framework of Iran comprehensive informative development system has been proposed through discussing the apriori-informative plan.

Rail transit is an important section of rail transport in Iran. Exploiting the potentials of rail transit could have economic benefits for the country; however it seems that the current gains from transit are far behind its potentials. This research uses SWOT analysis to propose a strategic plan for improving Iranian rail transit. We develop a comprehensive list of strengths, weaknesses, opportunities and threats. We ask experts to score the items thereby we can select the most important ones. Making interaction matrices, the competitive strategies (WO) followed by conservative strategies (ST) are determined as the appropriate strategies for Iranian rail transit. Different short term and long term tasks are proposed based on the selected strategies. The tasks include: completion and expanding the rail network along the main corridors; improving the planning and reducing the delays of transit trains; creating a strong and integrated authority to pursue and carry out the transit related tasks.

Background: The Health Transformation Plan (HTP), as the latest reform of Iran's health system, has been implemented gradually in several phases to facilitate the achievement of universal health coverage. We aimed to identify the achievements and challenges of the HTP from the beginning of its implementation in Iran health system. Methods: In this qualitative systematic review, English papers were searched in PubMed, Scopus, Web of sci-ence, and Google Scholar search engines in addition to Persian databases such as Magiran and SID from 2014-2020. The Mixed-Methods Appraisal Tool (MMAT) checklists were used to assess the quality of the studies. Study selection, quality assessment, data extraction, and data analysis were done independently by two people. For analyzing the data, the Framework Analysis Method, based on the health system function framework of the WHO, was used. Results: Overall, 32 papers were included based on the inclusion criteria. The results were divided into four main themes: stewardship, financing, resource generation and service delivery, and20 sub-themes in the form of achievements and challenges. Regulatory and standardization, service packages, medical equipment and supplies, and the quality of health services were more repetitive. Considering the challenges of HTP, purchase process, motivational factors, and health services capacity were more repetitive. Conclusion: The administrative challenges in the implementation of the HTP have prevented the sustainabil-ity of the outcomes and their main goals. The use of strategic dynamic planning, anticipating sustainable finan-cial resources, and strengthening the monitoring mechanisms could lead to further achievements.

Vendors play a key role in their company's success, so having a vendor's performance evaluation system in order to identify strengths, areas of improvement and profitability in any company is essential. In this paper, a data envelopment analysis (DEA), which is a technique to evaluate the performance of decision-making units (DMUs), is first studied. Then, the efficiency scores of 66 automotive vendors based on the DEA based on the CCR model are calculated using Lingo software. Then, based on the efficiency scores of each vendor, an improvement plan with the help of the dual DEA model is presented to increase the efficiency scores of inefficient vendors. Finally, it will be clear that each inefficient vendor for improving the inefficiency should focus on which of the factors.

Background and Objective: Today, contractors are required to submit an HSE Plan before starting a project, and HSE officials in organizations must be able to develop an HSE Plan. Due to the lack of a specific format for the development of the HSE Plan, to avoid personal preferences, save time and money, and include the necessary parts, the present study aimed to provide a consistent model for users to develop a specific HSE-Plan using suitable software. Materials and Methods: First, the main framework of HSE-Plan was determined by searching various databases and including expert opinions. In the next step, the idea generation and design of the portal were done. Afterward, the required basic information was entered into the program and different parts of the program were designed according to the requirements of each section. Finally, the software was validated by testing it in a provincial power distribution company. Results: According to the input options, as well as the subject of the project and its specific requirements, the outputs were designed to suit different projects, and after entering the required information for each section, the output HSE-Plan was displayed. Conclusion: This software helps the user to define appropriate goals and policies for the organization and identify the relevant requirements by entering information such as risk assessment data and the results of occupational accidents, and finally the collection of these materials creates the plan required by users.