Conventional methods for extraction of the active constituents from herbal plants, in addition to their high processing costs, are harmful to the environment owing to their time and energy consumption, uncontrollable parameters, use of toxic and dangerous solvents, loss of the extract, thermal instability, the contamination of the product with organic solvents and the loss of water-soluble comp...

as the main actor of implementing energy saving and pollution abatement, corporations and their response to the policy are studied in this paper. we find that corporate properties as scale, ownership, current environmental performance on energy using and pollution, target market and listed situation have impact on the corporate responding conduct and progress. especially, current environmental ...

Modelling and simulation of the oxygen-sag model are used to demonstrate the potential benefits of the application of user friendly numerical software packages in environmental engineering education and practice. The simulation is used to obtain the profiles of oxygen concentration, oxygen deficit, as well as de-oxygenation and re-oxygenation rates as function of distance for a steady river vel...

Sustainable environmental management is of great concern due to rapidly growing number of health care institutions in Nepal. It is mandatory to regulate and develop a practice for impact assessment due to establishment and operation of health care facilities of Nepal through user's friendly procedure. This study was carried out to review Initial Environmental Examination (IEE) process and to re...

The development of environmental friendly engineering material has received top priority recently. Glass fiber (GF) reinforced polypropylene (PP) composites is one of the most widely used materials in the automotive industry due to its favourable properties. However, the presence of GF has become a major issue in the recycling of GF/PP composites. Considerable efforts have been devoted to find ...

The environmental impact of a regional trade agreement towards liberalization is an empirical question. The paper estimates the economic and environmental impacts of alternative trade policies of liberalization between six East Asian countries using Global Trade Analysis Project (GTAP) framework. The finding reveals that Japan will be in a winwin situation followed by Republic of Korea after ta...

Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Printer-friendly Version Interactive Discussion EGU Abstract Vertical (cross-isentropic) mixing is produced by small-scale turbulent processes which are still poorly understood and parametrized in numerical models. In this work ...

We extended the prototype model Gibbons and Gerrard to examine the disparity between professed environmental concerns and behavior. Our model assumed that there are two decision processes: a reactive process involving unintentional decision-making based on situational factors, and an intentional process involving goal-oriented decision-making based on attitudinal factors. A questionnaire about ...