Today, knowledge sharing has determinant role in promotion of various industries and organizations as an element of knowledge management. According to daily incremental importance of knowledge as the most critical resource for competitive advantage, organizations try to find effective ways of knowledge sharing among employees. Knowledge sharing is considered as an important and principal part of knowledge management, and creative employees are promoter and dynamic force of organizational activities. Methodology: This research tries to design a model to make relationship between knowledge sharing and employees’ creativity. Therefore, related factors were identified to perceive knowledge sharing and also employees’ creativity, and some data was obtained using questionnaire. In order to study the relationship among variables and their effects on each other, structural equation model (SEM) was used by Lisrel software. Results: Results of this research show the positive and direct effect of knowledge sharing on employees’ creativity. Conclusion: Technological conditions have an important role in knowledge sharing, and managers of IRI police engineering administration must have always mention that more focus on technological conditions increase knowledge sharing in IRI police engineering administration.
This article was executed by the title of studying the effect of knowledge sharing on employees’ creativity of IRI police engineering administration. Methodology: The methodology was applied and descriptive-correlative according to the objective and identity of issues. Statistical population of this study is all managers, assistances, and skilled experts in IRI police who were 140 that all were selected as statistical sample. Standard questionnaire was used in order to collect data. The ideas of experts and scholars were used to test the face and content validity of questionnaires. Cronbach’s alpha coefficient was used to test the reliability of questionnaires. The calculated alpha for questionnaires was obtained higher than 0.7. Results: Results showed that knowledge sharing has positive and significant effect on employees’ creativity. In other words, knowledge sharing improves employees’ creativity. Conclusion: According to the results of this research after indication of advantages and disadvantage of knowledge sharing, organization can identify proper strategy and approach about knowledge sharing, use the best methods of increasing knowledge sharing in organization, reinforce advantages and weaknesses, and also stop the obstacles reducing knowledge sharing in organization. Finally, it must be noticed that the knowledge sharing strategy is a continued attempt which must always be alive and in organization.
Today, cracking asphalt pavement in low temperature is one of the obstacles for protecting pavement in the cold climates. One of important factors in extending of these types of cracking is cooling and heating temperature cycles according to the changes in seasons. Therefore, this research examines these types of asphalt cracking by considering asphalt mixtures and using mechanics science. In this research, cold environmental conditions were determined by making asphalt gyratory asphalt samples and fracture test in -15°C to study the effect of asphalt mixtures important parameters, it means asphalt construction materials textile on fracture resistance of samples. On the other hand, simultaneous effect of two parameters on asphalt fracture resistance was examined by considering the effect of freezing and thawing cycles, as well as using siliceous and calcareous materials. In addition, the effect of this material was studied to improve asphalt properties and fracture resistance by introducing antistripping material.
Considering the military implementation prohibitions and highly developed technologies of composite materials , this project studies about increasing the power of martial and fire in Gyroplanes and light Helicopters by design, optimization and manufacturing of composite launchers instead of isotropic types. Using composite type launchers have advantage of lower weight, higher life and simplicity in manufacturing. Modeling and analysis accomplished by Abaqus Software and the fiber composite directions improved by coding in Matlab Software. The optimization process completed by linking both softwares. Till now, more than 800 successful shots have been made in several centers using composite launchers. Because of easy manufacturing of this kind of launchers, there is no need to have advanced equipments and all the works have been provided by semi-skilled workers in the simple workshops.
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