نتایج جستجو برای: tension factor
تعداد نتایج: 899712 فیلتر نتایج به سال:
by using the trigonometric uniform splines of order 3 with a real tension factor, a numericalmethod is developed for solving a linear second order boundary value problems (2vbp) withdirichlet, neumann and cauchy types boundary conditions. the moment at the knots isapproximated by central finite-difference method. the order of convergence of the methodand the theory is illustrated by solving tes...
in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...
مقدمه : استعمال سیگار و مواد مخدر از جمله معضلات رایج بهداشتی محسوب می شوند. نه تنها استعمال سیگار، بلکه مواجه با دود آنها نیز عواقب زیادی را برای انسان ایجاد می نماید. در معرض دود سیگار بودن نیز خطر ابتلا به سرطان و بیماری های قلبی و عروقی را افزایش می دهد. یکی از عوامل مطرح شده در مورد مصرف سیگار اختلال در روند التیام زخم می باشد. بر همین اساس بر آن شدیم که به بررسی اثر مصرف سیگار بر روی باز ...
In order to investigate the effect of salinity tension and zinc nano oxide on physiological parameters of Rapeseed and Camelina, a factorial experiment was conducted based on a completely randomized design with three replications in the greenhouse conditions of Department of Biology of Urmia University in 2012-13. The factor of zinc nano oxide was investigated at three levels of zero, 25 and 1...
Aims and background: Distress tolerance is an important psychological phenomenon which affects self-regulation processes including cognitive appraisal of emotional or physical states. Given that individuals with tension-type headaches are most likely to have low levels of distress tolerance, the evaluation of this variable is, therefore, very essential as the initial step of treatment in this p...
Background and Objective: The infant hospitalization crisis causes severe stress to the parents. The nursing staff can play an effective role in reducing the tension because of the close relationship they have with infant mothers. The main aim of this research was to determine the rate of anxiety in mothers of hospitalized infants and to determine the primary factors in order to reduce their te...
Aim and Background: Examining fear of negative evaluation as one of psychological causes in headaches is important. The aim of the present study was to investigate validation and psychometric properties of the Brief Fear of Negative Evaluation Scale (BFNES, Leary, 1983) in a group of women with tension-type headaches. Methods and Materials: A total of 110 women with tension-type headaches in ...
this study compares the functional capabilities of different metacarpal fixation constructs under physiological loadings in an attempt to identify the optimal construct rather than the strongest one. one hundred and twenty-six preserved human metacarpals were mechanically tested after oblique osteotomies and internal fixation. maximum load to failure, average structural rigidity, and energy abs...
the present investigation entails a procedure by which the surface tension and viscosity of liquids could be redicted.to this end, capillary experiments were performed for porous media by utilizing fifteen different liquids and powders. the time of capillary rise to a certain known height of each liquid in a particular powder was recorded. two artificial neural networks (anns) were designed and...
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