نتایج جستجو برای: physical modification
تعداد نتایج: 783946 فیلتر نتایج به سال:
in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...
wheat starch is the most common type of starch in iran as well as many other parts of the world with enormous applications in food and non-food products. to improve its physicochemical properties or create new functionalities, starch can be modified by changing its molecular structure. amongst different methods for starch modification, physical methods have received more attention recently. pre...
background and objectives: given the limited number of studies on ramadan fasting and military performance, we conducted this study to identify the effect of ramadan fasting on physical fitness performances in army cadets. methods: twenty healthy males were randomly selected from a larger sample group. the subjects were divided into fasting (n=10) and non-fasting (n=10) groups. they performed v...
background: this study aimed toassess the effectiveness of educational program on lifestyle modification among type iidiabetic patients. methods: this was aquasi-experimental study which was conducted to determine the effectiveness of educational program on lifestyle modification among type iidiabetes patients in 2011.study population included120 people who suffered from type iidiabetes and div...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...
Abstract Introduction: This cross-sectional research compares the changes in quality of life (QoL) in adolescents experiencing growth modification therapy affected by the COVID-19 pandemic from 2019 to 2020. The participants were among those referring to the orthodontic department of Hamadan Dental School. The aim of this study was to evaluate the effect of growth modification on oral health r...
Physical activity and dietary modification work best. Family involvement, regular weight monitoring, and behavior modification also can help. Regular physical activity decreases long-term weight gain. Decreasing fat intake and increasing fruit and vegetable consumption also may decrease weight gain. Combined dietary and physical activity interventions prevent weight gain. Family involvement hel...
Abstract This review is the first part of a comprehensive hydrophobisation lignocellulosic materials. The purpose this has been to compare physical methods We have compared molecular adsorption with plasma etching and grafting. Adsorption are facile rely upon simple mixing or coating substrate hydrophobing agent. However, none surfactant-based reviewed here reach contact angles above 90°, makin...
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