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تعداد نتایج: 1342157 فیلتر نتایج به سال:
among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...
The problem of smoke haze pollution in Northern Thailand affects both the environment and residents. main sources are wildfires open burning during dry season, which release many pollutants, especially surface O 3 , impacting health causing an air crisis. aim this research was to study impact biomass on CO, NO 2 levels using Weather Research Forecasting Model with Chemistry (WRF-Chem). simulati...
Climate change has an effect human living in a variety of ways, such as health and food security. This study presents prediction crop yields production risks during the years 2020–2029 northern Thailand using coupling 1 km resolution regional climate model, which is downscaled conservative remapping method, Decision Support System for Transfer Agrotechnology (DSSAT) modeling system. The accurac...
BACKGROUND The waste transfer stations (WTSs) is one of the most important factors affecting on environment and human health. This research is aimed to evaluate health risk of VOCs among WTS personnel and provide a model for dispersion of VOCs. The Air Pollution Model (TAPM) is able to simulate WTS emissions dispersion over each town. RESULT GC-MS was used to analysis collected gas samples to...
GTP cyclohydrolases I and I1 catalyze the first committed steps in the pathways of pteridine and flavin biosynthesis [ I ] . A reaction pathway for GTP cyclohydrolase I involving the release of C8 of GTP as formate, followed by Amadori rearrangement and ring closure (see Fig. I), has been proposed earlier [2]. The enzyme was first purified and characterised by Yim and Brown [3] Recombinant GTP ...
PURPOSE To compare visual outcomes, rotational stability, and centration in a randomized controlled trial in patients undergoing cataract surgery who were bilaterally implanted with two different trifocal intraocular lenses (IOLs) with a similar optical zone but different haptic shape. METHODS Twenty-one patients (42 eyes) with cataract and less than 1.50 D of corneal astigmatism underwent im...
We updated the anthropogenic emissions inventory in NOAA’s operational Global Ensemble Forecast for Aerosols (GEFS-Aerosols) to improve model’s prediction of aerosol optical depth (AOD). used a methodology quickly update pivotal global sulfur dioxide (SO2) using speciated AOD bias-scaling method. The method is based on latest model predictions compared NASA’s Modern-Era Retrospective analysis R...
یکی از مهمترین علائم شناخت و تکامل گرافیک متحرک مربوط به حرکت در حروف است و نوعی بیان که بوسیله حرکت اتفاق می افتد . اگر تایپوگرافی که به معنای کلی حساسیت بصری بخشیدن به نوشتار است ،نشانه نوشته متحرک(moving type) ابزاری است که بوسیله حرکت و جانبخشی، این حساسیت و تأکید را دو چندان می کند .
Iranian Orthopedic Community as a part of the national health system feels deeply responsible to take part in the battle against the new coronavirus (COVID-19) pandemic. Although we might not be considered the front-line defenders, we do have a key role in this challenge. As the crisis continues to grow in Iran, the risk of contracting the virus increases with subsequent increase in the number ...
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