نتایج جستجو برای: xinhuangcun road

تعداد نتایج: 71175  

Aidin Parsakhoo Ataollah Kavian Atta Safari,

Forests are an important economic source for human and have key role in nutrient cycle, hydrology and ecosystem performance, any interference in this vital ecosystem causes to damage to forests. Mechanical logging and road construction in forest areas have led to much soil compaction. Soil physical and chemical properties were studied in parts of road and non-road in the Darabkola forest of Ira...

Aidin Parsakhoo Ataollah Kavian Atta Safari,

Forests are an important economic source for human and have key role in nutrient cycle, hydrology and ecosystem performance, any interference in this vital ecosystem causes to damage to forests. Mechanical logging and road construction in forest areas have led to much soil compaction. Soil physical and chemical properties were studied in parts of road and non-road in the Darabkola forest of Ira...

Extended abstract 1- Introduction     Forest is a sustainable ecosystem with a high balance, and is characterized by non-eroded soils and sediment-free water. Forest roads serve as the largest construction activities and a component added to the forests which are required for the accessibility to forests and forest resources, logging, transportation, conservation, tourism, etc. However, these...

Journal: :علوم و تکنولوژی پلیمر 0
سید مجتبی میرعابدینی مهرداد شریفی مینا حقایق شاهین شعبانی پیمان بختیاری

in this study, the effect of hydrocarbon and rosin ester resins combination on the physical and mechanical properties of thermoplastic road markings were evaluated. at first, two basic thermoplastic road marking formulations based on hydrocarbon and rosin ester resins were prepared. several samples of the blends of two basic formulations for thermoplastic road marking were characterized and com...

Journal: :جنگل و فرآورده های چوب 0
سمیه کرمی راد دانشگاه تهران احسان عبدی دانشکده منابع طبیعی باریس مجنونیان دانشگاه تهران وحید اعتماد دانشگاه تهران هرمز سهرابی دانشگاه تربیت مدرس

road construction is one of the effective factors for ecological changes which affects diversity and species composition in forest roads edges. this research was performed in kheirud forest to evaluate herbaceous diversity and tree regeneration establishment in different distances from road edge. for this purpose, we sampled herbaceous and tree species regeneration in 0,5,10,25, 50 and 100 m di...

Journal: :مجله علوم اعصاب شفای خاتم 0
tahere ghadiri garjan shefa neuroscienceresearch center, khatam alanbia hospital, tehran, iran. mostafa modarres mousavi shefa neuroscienceresearch center, khatam alanbia hospital, tehran, iran.

sleep deprivation (sd) increases the risk of human-error related accidents and a major cause of motor vehicle accidents. the overall prevalence of insufficient sleep in adults has been estimated at 20%. according to a comprehensive study prevalence of daytime sleepiness, among young adults (age 21 to 30 years), the average nocturnal sleep time during weekdays was 6.7 hours and on weekends was 7...

Journal: :مجله علوم اعصاب شفای خاتم 0
arezou eshaghabadi shefa neuroscience research center, khatam alanbia hospital, tehran, iran leyla bayan shefa neuroscience research center, khatam alanbia hospital, tehran, iran

human factors issues associated with roadway design and operations are critical components of improving highway safety. first, the three major components of highway safety are driver behavior, vehicle safety, and roadway safety. the general philosophy in roadside safety follows the priorities of (1) remove the hazard, (2) relocate the hazard, (3) make the hazard forgiving, and (4) shield the ha...

Journal: :international journal of environmental research 2009
sh. goswami

transportation sector is one of the major contributors to noise in the urban areas. the traffic noise environment in balasore, a city of orissa, india in terms of standard noise indices, community response and community health effects are worked out in the present study. noise pollution is assessed in six different squares (road sections) of the town. it is inferred that the noise levels are mo...

Gorgin, Lida, Khorasani-Zavareh , Davood, Salarilak, Shaker,

Background: To reduce traffic injuries in the country, health professionals should have accurate estimates of road traffic deaths. Multiple and sometimes inconsistent statistics presented by organizations in charge create high degree of uncertainty for planners and decision makers. To achieve an accurate estimate, several methods are available. Of them, capture-recapture method ...

مالک , ایوب, سالاری لک, شاکر , صادقی بازرگانی, همایون , غفاری‌فام , صابر ,

 Background & Aims: The aim of the present study was to determine the role and effect of stressful life events during one past year on pedestrian injury in the road traffic crashes.Materials & Methods: This case-control study had hospital-based design and was conducted during 2013-2014. First, 177 pedestrians injured by motorized vehicles during walk and being hospitalized in the Shohada Univer...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید