نتایج جستجو برای: 16 sub
تعداد نتایج: 534888 فیلتر نتایج به سال:
BACKGROUND AND OBJECTIVES: The Bangladesh government declared a general holiday beginning on March 26, 2020 aimed to combat coronavirus (COVID-19) pandemic. The aim of this study was to assess the impacts of the general holiday on air quality in Dhaka city area of Bangladesh. METHODS: Hourly PM2.5 (aer...
DOI: 10.1002/aenm.201501590 electrochemical stability window, and (3) chemical compatibility with the anode and cathode. In the past few years, major advances have been achieved in increasing the Li ionic conductivity of the solid electrolytes. The state-of-the-art solid electrolyte materials, such as Li-garnet Li 7 La 3 Zr 2 O 12 (LLZO) and Li 10 GeP 2 S 12 (LGPS) have achieved an ionic conduc...
Polycyclic aromatic hydrocarbons (PAHS) have been determined in the atmosphere of Isfahan, Iran. Airborne particulate matter was sampled using a high-volume air sampler at roof-top level (~6m). Extraction of PAHS from airborne particulate matter has been performed using SFE system and the relationship between the extraction temperature and the recovery of PAHS</su...
The present study was carried out to compare the inhibitory effect of alginate coatings containing Zataria Multiflora Boiss essential oil (ZMEO) in two forms of coarse emulsion and Nano-emulsion on the growth of inoculated Escherichia coli O157:H7in beef fillet during 16 days of refrigeration (4 C °). Accordingly, alginate solutions (3%) with different co...
in this study reference as one of the five cohesive devices in the achievement of textuality in english and persian narrative/descripitive written texts is focused on and analysed . to do so , the theoretical framework elaborated by halliday and hasan (1976) and its version adapted by the writer to match the sub-types of reference in farsi are applied to the analysis of reference in english and...
درختان میوه، بهدلیل ساختار بیولوژیکیشان، به تغییرات آب و هوایی حساسیت بسیار زیادی دارند. مطالعة حاضر در دو دورة گذشته (2005-1985) و دورة آینده (2090-2020) بررسی شد. در دورة آینده از مدلهای BCC-CSM1.1، MRI.CGCM3، GFDL-CM3، MIROC-ESM، و GISS-E2-Rاز سری مدلهای CMIP5 پایگاه دادة MarksimGCM در خط سیر سناریوهای RCP8.5 و RCP4.5استفاده شد. نتایج نشان داد مدل MRI.CGCM3 از وزن و توانایی بیشتری در ش...
ترکیب بس بلورهای y1-2xcaxthxba2cu3o7- با 0.075, 0.05, 0.025, x=0 به روش استاندارد واکنش حالت جامد ساخته شدند. خواص ترابردی و ابررسانایی آن با اندازه گیری گرما الکتریسیته(s(x,t به صورت تابعی از دما و تراکم آلایش مطالعه شده است. دمای بحرانی به صورت خطی با افزایش تراکم آلایش کاهش می یابد.(s(x,t توسط مدل پدیده شناختی نوار باریک تحلیل گردید. تغییرات tc و گرما الکتریسیته در دمای اتاق s290k و نتایج م...
the aim of conducting this study was to investigate the foreign language learning needs of undergraduate economics students and business management students in faculties of social sciences of alzahra and azad naragh university. in the study, which was designed on the basis of a qualitative-quantitative basis using interviews and questionnaires, 146 female undergraduate business management as we...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید