نتایج جستجو برای: cold zones
تعداد نتایج: 150279 فیلتر نتایج به سال:
Climate is the most important factor which control desertification .In order to detect climate changes in desert zones, time trend analysis is applied to extreme indices in Kashan station using extreme climate index software (ECIS). Results show significant trends in extreme indices during the past decade 1995-2004 and the pronounced warming is associated with a negative trend in cold extremes....
As a measure of cold hardiness, we tested the supercooling points or freezing temperatures of individual hemlock woolly adelgids (Adelges tsugae Annand) collected from 15 locations across the north to south range of the adelgid in eastern North America at different times during two winters. Adelgids from the northern interior locations with USDA hardiness zones of 5B–6B had lower supercooling p...
As a measure of cold hardiness, we tested the supercooling points or freezing temperatures of individual hemlock woolly adelgids (Adelges tsugae Annand) collected from 15 locations across the north to south range of the adelgid in eastern North America at different times during two winters. Adelgids from the northern interior locations with USDA hardiness zones of 5B-6B had lower supercooling p...
climate is the most important factor which control desertification .in order to detect climate changes in desert zones, time trend analysis is applied to extreme indices in kashan station using extreme climate index software (ecis). results show significant trends in extreme indices during the past decade 1995-2004 and the pronounced warming is associated with a negative trend in cold extremes....
The Iran’s coastal marine algae have great potential in the fields of medicine, food and cosmetics which unfortunately, fewer have been studied. In the present study, Total lipid and fatty acid profile of brown algae, N. zanardini were measured in both cold and warm season. The total lipid content with 41.1±0.8 mg/g dry weight was high in February. In the present study, Fatty acid composition o...
The 7XXX series alloys are heat-treatable Al-Zn-Mg or Al-Zn-Mg-Cu alloys. They develop their strength by solution heat treatment followed by ageing. In contrast to the 5XXX series alloys, the 7XXX series alloys do not respond favourably to cold work, because they are strengthened almost exclusively by GP zone formation and precipitates which nucleate from the GP zones. Introducing many new disl...
به منظور مطالعه بیواستراتیگرافی و پالئواکولوژی رسوبات دونین پسین، برشی در استان کرمان انتخاب گردید، که از لحاظ موقعیت زمین شناسی در ناحیه ایران مرکزی قرار دارد. برش باغین در شمال شرق باغین و 20 کیلومتری غرب کرمان واقع شده است. قدیمی ترین واحد دونین در این منطقه، سازند پادهاست که شامل ماسه سنگ های سفید و قرمز می باشد، این سازند به وسیله واحد هایی از دونین که معادل سازند بهرام می باشد، پوشیده می...
Broiler Performance Efciency Factor (BPEF) isa smart and comprehensive indicator to assessthe performance of broilers. Batch wise datawere recorded from commercial broiler farmslocated in the hot and cold climatic zones inindustrial broiler production areas and analyzedfor its mean BPEF performance. The mean oorspace allowance, stocking density recorded in ...
We find that in young and warm subducting plates, earthquakes occur just below the Moho. In older plates, earthquakes occur throughout the subducting oceanic crust, as well as the subducting mantle. We document this behavior in several subduction zones where there are independent constraints on earthquake locations and slab structure, specifically for northern and southern Japan, Alaska, and te...
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