نتایج جستجو برای: load and resistance factors

تعداد نتایج: 17015959  

Journal: :ماشین های کشاورزی 0
علی حاجی احمد علی جعفری علیرضا کیهانی هادی گلی بابک نوع دوست

in this paper, a low-cost dynamometer for rolling, steered wheels is described. the dynamometer was constructed to determine whether such an instrumented mechanism was practical. four s-beam load cells, an opto-counter and a potentiometer were used to obtain all moments, and forces using dynamic and kinematic analysis. minimal simplifying assumptions considered for the required calculations. ov...

Journal: :iranian endodontic journal 0
fariborz vafaee department of prosthodontics, dental school/dental research center, hamadan university of medical sciences, hamadan, iran masoumeh khoshhal department of periodontics, dental school, hamadan university of medical sciences, hamadan, iran. aliakbar rezaei department of prosthodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. fereidon sooltani department of prosthodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. mohsen jalal zadeh department of endodontics, dental school, hamadan university of medical sciences, hamadan, iran. ali yalpaniyan mechanical engineer msc, tehran, iran.

introduction: the resistance to fracture of endodontically treated teeth restored with esthetic post systems has not been extensively researched. this in vitro study compared the fracture patterns of endodontically treated teeth with esthetic post systems with different analysis methods. materials and methods: a total of 26 recently extracted human maxillary central incisors were decoronated an...

Journal: :Transactions of the Architectural Institute of Japan 1984

Journal: :Animal genetics 2003
J Kramer M Malek S J Lamont

Breeding for disease resistance to Salmonella enteritidis (SE) could be an effective approach to control Salmonella in poultry. The candidate gene approach is a useful method to investigate genes that are involved in genetic resistance. In this study, 12 candidate genes that are involved in the pathogenesis of Salmonella infection were investigated using five different genetic groups of meat-ty...

Journal: :international journal of smart electrical engineering 0
milad sasani my self

abstract forecasting electrical energy demand and consumption is one of the important decision-making tools in distributing companies for making contracts scheduling and purchasing electrical energy. this paper studies load consumption modeling in hamedan city province distribution network by applying esn neural network. weather forecasting data such as minimum day temperature, average day temp...

In the present study, the corrosion behavior and microstructural changes of 5000 series aluminum and copper sheets after the explosive welding process have been investigated. Explosive welding is performed with a fixed stop interval and change of explosive load. Dynamic potential polarization tests and electrochemical impedance spectroscopy, light microscopy, and scanning electron microscopy we...

Mostaan, H., Safari, M. ,

In this paper, resistance spot welding process of AISI 201 stainless steel is studied experimentally. For this purpose, effect of welding current on quality of weld is investigated and relationships between welding current and fusion zone characteristics are examined. For determining mechanical properties such as maximum load and fracture mode, tensile - shear test of spot welds is performed.  ...

Introduction: Obesity and visceral fat accumulation after menopause are associated with insulin resistance and cardiovascular diseases. We investigated the interactive effect of aerobic-resistance training and estrogen replacement therapy on visceral fat, omentin-1 and HOMA-IR in ovariectomized rats. Materials and Methods: Fifty female Wistar rats were ovariectomized (OVX) and divided into 5 gr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1392

the construct of self-efficacy has received increasing attention in research over the past two decades. many studies have been carried out 1.3 significance of the study this study has pedagogical implications since improving students’ self- efficacy and autonomy is important for promoting actual performance on classroom academic tasks. in academic settings, it has been shown that self-effi...

ژورنال: سلامت کار ایران 2016

Background and aim: Air traffic control has known as a complex cognitive task, which requires controller to focus on task for long time. Mental workload plays an important role in the performance of controllers. The aim of this study was to assess the workload of air traffic controller on the basis of task load factors. Methods: The present descriptive-analytical study was conducted among fo...

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