نتایج جستجو برای: college of agriculture and natural resources
تعداد نتایج: 24098158 فیلتر نتایج به سال:
in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...
practical education and experimental leaning, including farm training, are basic components of agricultural education. the purpose of this study was to assess effectiveness of practical on farm agriculture course in college of agriculture of gorgan university of agricultural sciences and natural resources. the survey method was employed in the study. the study population consisted of students w...
Faecal near infrared reflectance spectroscopy to predict diet quality for sheep H. Li a, D. Tolleson b,∗, J. Stuth b, K. Bai c, F. Mo a, S. Kronberg d a Animal Science College, China Agriculture University, Beijing 100094, PR China b Texas A&M University, Department of Rangeland Ecology and Management, 2126 TAMU, College Station, TX 77845-2126, United States c Institute of Natural Resources and...
Optimized forest degradation model (OFDM): an environmental decision support system for environmental impact assessment using an artificial neural network Ali Jahani, Jahangir Feghhi, Majid F. Makhdoum & Mahmoud Omid a Environment and Natural Resources Sciences Department, University of Environment, Karaj, Iran b Department of Forestry and Forest Economic, Faculty of Natural Resources, Universi...
introduction in agronomy, natural outlook has been expressed in different forms which stable agriculture is an example. stable agriculture is ascribed to the authentic management of agricultural resources, which in addition to fulfilling the ever-changing needs of humans, maintains the health of environment and capacity of water and soil resources. application of herbicides, besides being costl...
چکیده هدف اصلی این پژوهش شناسایی الزامات نظام مدیریت کیفیت فراگیر در حوزه پژوهشی دانشگاه اصفهان بود. سوالهای پژوهش با توجه به مولفه های مدیریت کیفیت (تعهد مدیران، بهبود مستمر فرایندها ، مشتری محوری ، منابع انسانی ، مدیریت اطلاعات ، زیرساختهای کیفیت ، استفاده از نتایج ، انعطاف پذیری، مشارکت در فعالیتهای پژوهشی، ایجاد فرهنگ کیفیت و تناسب ساختارهای سازمانی) که بر اساس مطالعه استانداردهای بین المل...
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
The countries' economy is basically dependent on both human and the natural resources so that social development of each country depends on them directly or indirectly. Nonetheless, some problems including the rapid growth of the population, unsustainable and unplanned exploitation, and lack of public awareness of development and reclamation rules have given an increase to the degradation proce...
JASON R. BOULANGER, Cornell University, College of Agriculture and Life Sciences, Department of Natural Resources, B20 Bruckner Hall, Ithaca, NY 14853, USA [email protected] PAUL D. CURTIS, Cornell University, College of Agriculture and Life Sciences, Department of Natural Resources, B13 Bruckner Hall, Ithaca, NY 14853, USA EVAN G. COOCH, Cornell University, College of Agriculture and Life Scie...
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