نتایج جستجو برای: less sound pollution and more relief

تعداد نتایج: 16914166  

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1391

abstract global financial crisis has created too many problems in relations among governments. among these problems, the issue of global monetary management, more than every time in the past four decades, has been moved in the center of international economic attentions. a problem which is specially known with the monetary hostility between united states and public republic of china. where ar...

Introduction and purpose: Noise pollution is an important health problem in most industries, especially in the small inland industries. The purpose of this study was to evaluate the noise pollution in turning and polishing shops in Qom, Iran, and compare it with the sound standards in the country. Methods: In the present descriptive cross-sectional study, noise assessment was performed using th...

احمدی, سعید, لطفی, معصومه, منصوری, نبی الله, منظم, محمدرضا,

Introduction: Using diesel generators is necessary for activities like welding in construction sites and it is often accompanied with noise pollution. The aim of this study was to evaluate noise pollution induced by diesel generators in construction activities in one of the districts of Tehran city.   Material and Method: In this descriptive study, 14 construction sites were selected for th...

Journal: :The Journal of thoracic and cardiovascular surgery 2011
Sudish C Murthy

In April 1981 Xerox introduced the Star 8010 workstation, the first commercial system with a Graphical User Interface (GUI) and the first to use the “desktop” metaphor to organize a user’s interactions with the computer. Despite the perception of huge progress, from the perspective of design and usage models, there has been precious little progress in the intervening years. In the tradition of ...

Journal: :بهداشت و توسعه 0
رضا حسین پور کاظم جعفری نعیمی محمدرضا قطبی راوندی

background: one of the most widely used equipments in harvesting hay and grains are four wheel mowers. the aim of the present study was to determine the levels of noise exposure in drivers and bystanders in different states, speeds and gear of four wheel mowers (bcs model 622).   methods: the iso 5131 and iso 6814 standards were used to assess noise exposure in drivers and bystanders, respectiv...

پایان نامه :0 1392

it is definitely necessary to understand the concept and behavior of causation of life insurance policies and its determinants for insurance managers, regulators, and customers. for insurance managers, the profitability and liquidity of insurers can be increasingly influenced by the number of causation through costs, adverse selection, and cash surrender values. therefore, causation is a materi...

Journal: :journal of advances in environmental health research 0
asad noori student research committee, kurdistan university of medical sciences, sanandaj, iran behzad shahmoradi department of environmental health engineering, faculty of health, kurdistan university of medical sciences, sanandaj, iran ebrahim darvishi phd students in occupational health, hamedan university of medical sciences, hamedan, iran mostafa golami department of urban planning, school of technology, university of kurdistan, sanandaj, iran sahar hajimirzaie student research committee, kurdistan university of medical sciences, sanandaj, iran omid nasri student research committee, kurdistan university of medical sciences, sanandaj, iran omid khoshsoorat

it is accepted that noise pollution has a major impact on health, such as physical, physiological, psychological and performance related effects, all over the world. this study aims to evaluate noise pollution in four urban parks located in sanandaj city, iran and to zone it in gis environment. sound pressure level (spl) and maximum sound level (lmax) were measured at 45 points (each point was ...

Journal: :Environmental Health Perspectives 2009

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده ادبیات و علوم انسانی 1391

the purpose of this two-phase, sequential mixed methods study was to find out whether there were any decencies between male and female ma students’ theses regarding the common features of academic writing such as syntactic complexity, means of integrating cited information, and organizing arguments. i chose 10 male written theses and 15 female written theses in tefl and linguistics. in the firs...

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