نتایج جستجو برای: required area
تعداد نتایج: 1047470 فیلتر نتایج به سال:
The acreage of creation, restoration (re-establishment or rehabilitation), and enhancement that is required by regulatory agencies, including local governments, to compensate for impacts to wetlands is usually greater than the acreage of impact. This difference is expressed as a ratio (a mitigation ratio) of the area required for compensation vs. the area of impact. For example, a ratio of 3:1 ...
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In this research, two new methods that improve the drawing depth of deep-drawing processes have been introduced. In the first technique, by creating ridges on the punch surface, the stress concentration is decreased on the blank near the punch edge, in turn increasing the drawing depth. The second method is based on the principle of reducing resistant force in the flange area between the die, t...
this study focused to identify the likelihood factors affecting on farmers’ higher gain from paddy marketing in the north central province of sri lanka, where the main paddy cultivation area of the country. the required data was drawn from the field survey carried out in three irrigation systems covering 257 farmers during july to august 2010. the empirical logit model was used to assess factor...
Prut River is very important for sustaining the biodiversity and economical activities in its area for Romania, Ukraine and Republic of Moldova. Anthropogenic activities are present everywhere especially near a big water flow because they need a close water resource. The major problems remain the impact and a possible risk produced as a negative result in these activities (agriculture close to ...
Introduction: Ecological factors such as climate change as well as environmental, social, economic, and political factors are effective in increasing the incidence of Leishmaniasis disease in the Middle East. This study aimed to evaluate the ecological causes of leishmaniasis in Fariman town during 2006-2017. Methods: In this descriptive-analytical study, all patients who were residents of Far...
Usually, it is common to use the internal heat exchanger subcooler-superheater after the condenser and before the expansion valve in the compression refrigeration cycles. In this study, the effect of the heat exchanger is evaluated by using recovery heat exchanger after the compressor and before the condenser. To this end, the vapor compression refrigeration cycle with conventional heat exchang...
Leaf area information is required in various horticultural and physiological studies and it will be more useful if done via non-destructive methods. The objective of this study was to establish equations to estimate leaf area (LA) using length (L), width (W), fresh weight (FW), dry weight (DW), length × length (L2), width × width (W2), length × width (L×W), length + width (L+W), fresh weight × ...
Background & objectives: Health care centers are among the most important and essential centers that proper and timely access to them is one of the basic goals of social justice. The health of the individual and the community depends on the centers that provide primary health care. Rapid, timely, and inexpensive access to these centers is very important and necessary, in any community, especial...
determination of the starter torque-speed diagram is a major task in the design or selection of a proper gas turbine starter. in this paper, the maximum power of the mgt-40 gas turbine starter was calculated based on the dynamics of the rotor, start-up logic, and compressor map. in a recent research, the pressure ratio was assumed as a linear function of the rotor speed and the required starter...
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