نتایج جستجو برای: variable intercooler effectiveness
تعداد نتایج: 574791 فیلتر نتایج به سال:
nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...
high performance cuk converter considering non-linear inductors for photovoltaic system applications
the cúk converter, which has voltage buck and boost ability, offers high flexibility as an interface device for solar panels. in addition, current ripple can be more reduced because of two input and output inductors at both sides. this paper presents a new application of current-variable inductors in a cúk converter that reduces the size and capacity of storage elements. because of two inductor...
In this article, the role of Sociological Factors affecting youthparticipation in the cities of Mazandaran province has been investigated. The theoretical framework and theoretical model were presented using theorist's theory such as Lipset, Weber, Perry, and so on. This research was conducted through a survey method, formal and structural validity was used and reliability was also obtained usi...
The present survey was conducted aimed to investigate effectiveness of two approaches of private teaching and educational consultation on academic success, classroom behavior, and self-esteem of students with educational decline threats. The strategy of survey was quantitative and test approach was used through three-group pretest-posttest with one control group. Statistical population included...
Introduction: Single-parent children are among the children who need serious attention from the therapeutic and training community. The aim of this study was to determine the effectiveness of cognitive-behavioral art-play therapy and play therapy based on child-parent relationships on the quality of child-parent interactions among single parents’ children. Methods: The research method was two s...
b a ckground: malaria still is considered as a public health problem in iran. the aim of the national malaria control department is to reach the elimination by 2024. by decreasing the number of malaria cases in preelimination phase the cost effectiveness of malaria interventions decreases considerably. this study estimated the cost effectiveness of various strategies to combat malaria in preeli...
background and aims: nowadays, hypnosis has opened its position in the medical community. based on controlled trials, hypnosis has been superior compared to other interventional procedures to reduce acute pain. this investigation aims to determine the effectiveness of hypnosis in the treatment of pain and enhancing mental performance in iran, using the meta-analysis method. methods: the search ...
in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...
A NURBS-based isogeometric finite element formulation is developed and adopted to the free vibration analysis of finite square and skew laminated plates. Variable stiffness plies are assumed due to implementation of curvilinear fiberreinforcements. It is assumed due to employment of tow placement technology, in each ply of variable stiffness composite laminated plate the fiber reinforceme...
This paper deals with modeling and analysis of complex mechanical systems that deteriorate age. As age, the questions on their availability reliability start to surface. The system is believed suffer from internal stochastic degradation mechanism described as a gradual continuous process performance deterioration. Therefore, it becomes difficult for maintenance engineer model such system. Semi-...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید