نتایج جستجو برای: east direction during cold seasons
تعداد نتایج: 1987713 فیلتر نتایج به سال:
Introduction: Continuous exposure to cold air is considered to be a hazardous agent in the workplace in cold seasons. This study aimed to determine the level of cold stress and relation with physiological responses in auto mechanic employees. Method: This cross-sectional study was conducted in the winter of 1395 on auto mechanic employees in Hamadan city. Physiological responses during daily...
Background and purpose: Petrochemical industries and refineries are regarded as important emission sources of inorganic and organic pollutants. The aim of this study was to survey TVOCs and BTEX in the air of South Pars Special Economic Energy Zone in 2014. Materials and methods: In a cross-sectional study sampling and analysis was done by NIOSH 1501 method. The study was carried out in 336 ...
A bedload trap in the riverbed provided direct quantitative measurement of debris-transport rate in the East Fork River, Wyoming, a basin of 466 km(2) drainage area. Traction load moves only during the spring snow melt season. Data collected in three spring runoff seasons during which a peak flow of 45 m(3)/s occurred showed that transport rate is correlated with power expenditure of the flowin...
The Syrian crisis, after passing the stages of a hard war between regional actors, advances towards a new cold war between powerful intra-regional actors. The basic question raised in the present article is, “How is the nature of the new conflict between East and West in the Syrian crises?” The nature of the confrontation is revealing the cold war between the two blocks of the Western countries...
Abstract The main objective of recent study was comparative immunohistochemistry of Gut-associated lymphoid tissue (GALT) of, Huso huso in two warm and cold seasons. Ten specimens were collected from sturgeon breeding centers and after anesthesia, biometric was taken on them. 0.5 centimeter samples of primary, middle and end of intestine were removed and immediately were placed in Bouin soluti...
Employing reanalysis datasets, several threshold temperatures at 850 hPa are used tomeasure the wintertime [December–February (DJF)] areal extent of the lower-tropospheric, Northern Hemisphere, cold-air pool over the past 66 cold seasons. The analysis indicates a systematic contraction of the cold pool at each of the threshold temperatures. Special emphasis is placed on analysis of the trends i...
A total of 265 copepod species belong to 70 genera, 33 families and 5 orders were identified during 4 surveys in the study area. Copepod diversity varied significantly in different seasons, and the distribution patterns were quite different between Yellow Sea and East China Sea. Species richness, evenness and taxonomic diversity were significantly higher in East China Sea, whereas taxonomic dis...
To understand the microphysical characteristics of rainfall in four different climatological regions (called BOS, BUS, CPO, and JIN) South Korea, DSDs their variables, including mass-weighted mean diameter (Dm) normalized number concentration (logNw), were examined. examine at sites with climatology topography, data measured from Parsivel disdrometer wind direction Automatic Weather System (AWS...
BACKGROUND The world has recently experienced the first influenza pandemic of the 21st century that lasted 14 months from June 2009 to August 2010. This study aimed to compare the timing, geographic spread and community impact during the winter wave of influenza pandemic A (H1N1) 2009 to historical influenza seasons in countries of the WHO European region. METHODS We assessed the timing of pa...
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