نتایج جستجو برای: m3 black plastic in first cutting
تعداد نتایج: 17138022 فیلتر نتایج به سال:
in this thesis, using concepts of wavelets theory some methods of the solving optimal control problems (ocps). governed by time-delay systems is investigated. this thesis contains two parts. first, the method of obtaining of the ocps in time delay systems by linear legendre multiwavelets is presented. the main advantage of the meth...
A study on the effect of sisal fibre and waste plastic strips tropical black clay (also called Black cotton soil, BCS) was carried out. Tests piloted natural treated soil consist California bearing ratio (CBR), Atterberg limits compaction for different percentages inclusion (0, 0.5, 1, 1.5 2%) by dry weight soil. Results obtained showed that liquid limit BCS initially fluctuated between 43.4% 5...
the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...
to assessment alfalfa cultivars research project this research has been fulfilled in 2011 at khouzestan agricultural and natural resource research center in southwest of ahwaz in khouzestan province (iran) by position 31º20′ n, 48º40′ e. at first section for evaluation wet forage yield cultivars such as “baghdadi”, “mesasersa”, “yazdi”, “bami”, “nikshahri”, “synthetic” (main factor) and two cut...
Farmers in India rarely employ plastic mulches tomato cultivation, despite the fact that it has potential to save irrigation water, manage weeds, and increase output. The precision of water for production using various colour was evaluated an experimental farm at UAS-Raichur. Because effect levels, 120 percent evapotranspiration based treatment had most soil moisture availability, while 60 by d...
BACKGROUND There is increasing recognition of the importance of early environmental exposures in the development of childhood asthma. Outdoor air pollution is a recognized asthma trigger, but it is unclear whether exposure influences incident disease. We investigated the effect of exposure to ambient air pollution in utero and during the first year of life on risk of subsequent asthma diagnosis...
Effect of black surfaces to increase the average surface temperature of the earth: A global warning!
Gradual increase of the Earth's surface temperature can cause many significant changes on the climate of our planet. This problem is progressively increasing. One of the main reasons for this phenomenon is the absorption of the Sun's energy and lack of proper reflection of emissions due to man-made activities, one of which is the increase in black surfaces. In this descriptive and cross-sectio...
microbial electrolysis cell (mec) is one of the promising and cutting-edge technologies for generating hydrogen from wastewater through biodegradation of organic waste by exoelectrogenic microbes. in the mecs, the operational parameters, such as applied voltage (eap), anode surface area, anode-cathode distance, and n2/co2 volume ratio have a significant impact on the hydrogen yield and producti...
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