نتایج جستجو برای: whereby environmental pollution may decline.

تعداد نتایج: 2146987  

Journal: :جنگل و فرآورده های چوب 0
علی قاسمیان دانشیار گروه صنایع خمیر و کاغذ دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران محمدتقی اسداله زاده دانشجوی دکتری رشتة صنایع خمیر و کاغذ دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

optimization of the isolation methods and utilization of the sugars present in the hydrolysates obtained from pre-hydrolyses of various lignocellulosic materials for production of new chemicals and energy is currently accounted for novel methods of biorefinery all over the world. in this study, effect of temperature (90 and 100 oc), koh concentration (2, 4 and 6 %) and polyoxyethylene (80) sorb...

2004
Robert T. Deacon Catherine S. Norman

The empirical literature on the environmental Kuznets curve (EKC) purports to describe how a nation's environmental quality will evolve if it makes the transition from poverty to wealth. The popular generalization is that pollution will first increase and then, if income becomes sufficiently high, decline. Empirical support for this proposition is based primarily on crosscountry variations in i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...

2011
Rema Hanna

Using the most comprehensive developing country dataset ever compiled on air and water pollution and environmental regulations, the paper assesses India’s environmental regulations with a difference-in-differences design. The air pollution regulations are associated with substantial improvements in air quality. The most successful air regulation resulted in a modest but statistically insignific...

2014
Rema Hanna Harvard Kennedy

Using the most comprehensive developing country dataset ever compiled on air and water pollution and environmental regulations, the paper assesses India’s environmental regulations with a difference-in-differences design. The air pollution regulations are associated with substantial improvements in air quality. The most successful air regulation resulted in a modest, but statistically insignifi...

Development disorders may be arisen from the unavoidable maternal exposure to particulate air pollution during the prenatal life that can be affected not only periconceptional period but also postnatal life. A kind of chemical material categorized as air pollutants are present in the urine, blood and semen of exposed men and may decline sperm count and affect sperm quality. Environment toxic ca...

2013
Vanesa Castán Broto

People's experiences of a polluted space are intimately linked with their relative concerns for quality of lifeand livelihoods. Thus quality of environment and security of employment are two closely related issues insocial conflicts over environmental pollution. Rather than being implicated in a trade-off relationship,environmental quality and job provision are both part of the life...

2017
Xun Gong Shenggang Yang Min Zhang

Over the past 30 years, the economy of China has sustained rapid growth. However, the extensive development pattern severely deteriorates the ecological environment, which has been recognized as adverse effects on citizens’ physical and mental health. Simultaneously, the political trust in China has been in decline after staying at a high level for a long time. In this paper, we state that, in ...

2013
Woodley

Introduction Degradation of the world's coral reefs is one of the most vivid examples of the effects of global environmental damage of marine ecosystems. The major stressors responsible for coral reef decline have been attributed to coastal urban and industrial development, agricultural activity, sedimentation, overharvesting, marine pollution, disease and climate change Reef species experienci...

دارابی نیا, مرتضی , نجفی اسفاد, مرتضی ,

Background and purpose: Due to the considerable increase in the environmental pollution, especially with oil, during the last 50 years, the international community and international organizations have made remarkable efforts to reduce this pollution. The result was regulating of at least 200 international conventions on environmental issues. The purpose of this study was to evaluate the oil pol...

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