درخت حوزه‌های تخصصی

The aim of this study was to determine the level and analysis of the components of the organizational health at the Islamic Azad University of Region six. The research method is descriptive and population statistical consisted of region six of Islamic Azad university`s units. The subjects include 320 B.A holder individuals of staff who have bachelor`s degree and higher. From among 175 people were selected .benefiting from multistage sampling and Morgan table. Research elements (Lyndon & kingle) was obtained from organizational health questionnaire, Cronbach`s alpha reliability coefficient of 0.90. for analyzing the data mono sample t-test and Friedman have been used .the results revealed that the health status of the academic enterprise of MAHSHAHR and KHORRAMSHAHR is critical and SHOSHTAR`s academic enterprise in emergency and ABADAN AHWAZ and DEZFOUL academic units were normal. also the experimental mean such as: condition of participation`s components, loyalty and commitment, Direction and leadership in all academic units were lower than average (in an emergency) respectively

Paper undertakes software based numerical simulations in two different traditional houses in cold-dry climate of Tabriz and hot-arid climate of Yazd, The Eco Test software chosen for BIM simulations. Case study on real houses instead of hypothetical models can give more tangible results and choosing traditional houses can provide a good opportunity to compare both physical and thermal conditions, in which zones have more dense walls than contemporary typical building wall. With high thermal mass and more surface to volume ratio, investigating the effect of U-value on interior conditions are more accurate. Comparative case studies in two different climatic zones of Iran can give researchers the opportunity to compare the importance of total U-value in two severe climates in Iran. In addition, it can give the designers the insight that what design priorities must be considered in each climate. Results show that the U-value in a hot arid climate of Yazd has a more direct effect in controlling interior comfort conditions, like fluctuations of temperature and variations of summer and winter temperatures, as well as variations of temperature in a single day and total energy need and consumption in both hot months and cold months of the year.

Hail phenomenon is one of the hazardous weather phenomena that can make the highest amount of damage to farms, gardens, cars, rooftops, etc. in a very short time (a few minutes), depending on the diameter of the particles. One of the best ways to study this devastating climatic phenomenon is the use of atmospheric instability indices. The indices which are calculated with the help of radiosonde data give a fairly comprehensive vision regarding the occurrence of such phenomenon. In this study, the incidence of moderate to severe hail is investigated in the period of 1990-2010. First, the atmospheric codes related to hail phenomena were applied to extract the data, then radiosonde data in intended time were received and applying the RAOB software, the physical status of atmosphere was studied. In the studied period, two hail examples were reported on November 27, 2008 and December 5, 2008. In the first instance of hail that occurred on November 27, 2008, the status of some indicators was calculated and it was found that LCL was at an altitude of 284 meters, CCL at an altitude of 1582 meters, LFC at an altitude of 6230 meters, the ice surface at an altitude of 3278 meters, the LI index was -0.2, the K index was 25.7 ° C, and PWC was 28 mm. In the above mentioned conditions, there was a hail with a diameter of 25.4 mm. In the second instance of hail that occurred on December 5, 2008, the status of some indicators was calculated and the results showed that LCL was at an altitude of 280 meters, CCL at an altitude of 1762 meters, LFC at an altitude of 2271 meters, the ice surface at an altitude of 2771 meters, the LI index was -1.4, the K index was 27.1 ° C, and PWC was 23.6 mm. In the above mentioned conditions, there was a hail with a diameter of 3.6 mm. Given that in many ways, the status of most atmospheric indicators in the two above examples of hail were close to each other, it turns out that in similar circumstances, the greater the distance the ice level gets to the summit of cloud, the greater is the probability of hails larger in diameter. The value of this distance for November 27, 2008 was at approximately 6384 meters and for December 5, 2008, it was at about 5012 meters.