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New LCA Approach with Fuzzy Evaluation

A quantitative and comprehensive method of product life cycle assessment(LCA) with fuzzy theory is developed, which will help designers to select the optimum design scheme for product life cycle design(LCD). Based on the theory of multiple attribute decision making, an algorithm of comprehensive and comparative evaluation for product environmental adaptability is presented. A program is built and used in an example of design improvement. The result shows that the proposed method and algorithm are practical and effective to the development of green products.

国内资讯

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Grey-theory based algorithm for impact assessment of green design

Life cycle assessment (LCA) is an important content of green design;the major phase of LCA is impact assessment. After classifying the impact factors, with grey-system theory, the evaluating grey-groups and their whitening weighing functions are defined;the grey-cluster analysis of each classified impact is performed;based on analyzing results, the calculating method of classified impact index is given. By range of action, the impact classes are grouped to three groups - global impact, regional impact, and local impact;the calculating methods of grouped and overall impact index are presented. Finally, an application example of comparative choice of a category of products - three materials, steel, aluminum and engineering plastics is given.

Industrial transformation and green production to reduce environmental emissions: Taking cement industry as a case

Industrial transformation and green production(ITGP) is a new 10-year international research initiative proposed by the Chinese National Committee for Future Earth. It is also an important theme for adapting and responding to global environmental change. Aiming at a thorough examination of the implementation of ITGP in China, this paper presents its objectives, its three major areas, and their progress so far. It also identifies the key elements of its management and proposes new perspectives on managing green transformation. For instance, we introduce a case study on cement industry that shows the positive policy effects of reducing backward production capacity on PCDD/Fs emissions. Finally,to develop different transformation scenarios for a green future, we propose four strategies: 1) policy integration for promoting green industry, 2)system innovation and a multidisciplinary approach, 3) collaborative governance with all potential stakeholders, and 4) managing uncertainty,risks, and long-time horizons.

Chemical Reaction Route Selection Based on Green Chemical Engineering

In the preliminary stage of chemical process design, the choice of chemical reaction route is the key design decision, and the concepts of atom utilization and environmental quotient have become extremely useful tools. However, the waste quality such as chemical toxicity and other engineering factors have not been taken into account. Therefore, a synthetic route selection index, Iroute, is proposed to determine the suitability of a chemical route in this paper. Iroute considers the effects of 'extended atom economy', material renewability, chemical characteristics and some engineering factors. The extended atom economy concept regards not only the value of the desired product but also the value of byproducts. The methodology by using Iroute to compare different routes is illustrated in case study of cyclohexanone oxime and acrylonitrile manufacture.

Efficient production of transgenic chickens using self-inactive HIV-based lentiviral vectors

We demonstrated the simple and effective production of transgenic chickens, in which the enhanced green fluorescence protein （EGFP） was expressed by using third-generation self-inactive HIV-based lentiviral vectors. In our experiments, lentiviruses were injected into 204 fertilized eggs, from which 30 （15%） chickens were hatched. The exogenous gene was detected in the genomes of 16 out of 30 （53%） chickens. The green fluorescence signal was observed directly in various body parts, and was particularly significant in the testes. The transgenes were also found in the offspring of these chickens. The results indicate that HIV-based lentiviral vectors can be used to generate transgenic birds economically and effectively [ Current Zoology 55 （5）： 383 - 387,2009].

The Impact of Green Accounting for Reducing the Environmental Cost in Production Companies

Green accounting and their impact for reducing cost as a profession is the duty to improve the internal viewpoint of any economic unit and develop information that clarify its role within their environment and their contribution to providing appropriate information for decision-making which leads to the optimal exploitation of resources and the preservation of the environment and averting the threat. Thus, taking into account the environmental accounts especially environmental costs would enable the accounting profession to provide more relevant information and appropriate administrative decision makers, productivity, in particular where the problem lies in the lack of such information, resulting in the adoption of sound decisions which have contributed to the deterioration of the environment rather than addressed. In total, 180 questionnaires were distributed and 155 returned. Through analysis, the study came to the most important results that there were no statistically significant differences between the arithmetic average of the possibility of measuring the environment cost of disclosure, and the study also recommends the allocation of the budget to preserve and protect the environment and the budget of social cost, the development of accounting methods in order to provide environmental information to make sound decisions to exploit these resources.

The Development of Green Design and Research on Product Design for Recycling

The paper analyze and comprehensive evaluate on the characteristics of the product life cycle in each link of the green product design and the life cycle, has obtained a series of design green design optimization method. In the choice of materials, this paper presented a method for the re-combination of recycled materials. In the recovery of the product it proposes the establishment of recycling system, and expounds the concept upgrade recovery. Design and manufacturing of green products and green recycling industry is the two most important link in green circular economic system, whether or not the coordinated development of the two sectors, is the key to the success or failure of the strategy of sustainable development.

A Pioneering Low Carbon Material Database for Building Industry

Considering that buildings represent 40% of greenhouse gases and approximately 10% of global gross domestic product, the target the building industry has to accomplish is to get to a high quality and low carbon living, by reducing carbon emission by 2050, as said by Energy Performance of Buildings Directive. Considering these needs, designers, manufacturers and construction companies should be able to make use of web and design tools for collecting and inventorying a large variety of environmentally friendly materials, through a specific database that encloses low carbon certified products and eco-labeled ones. The eco-labels are internationally identified as the best tools to encourage the spread of green products and low carbon notions, even if in Europe, there is no specific tool to be used. The project called LoCaMat （Low Carbon Material Database） will act as the first Italian and European database that encompasses multiple data on certified green materials to be used for the construction sector, making buildings climate change resilient, ensuring an efficient use of energy and resources, getting to a complete life cycle assessment for buildings materials and components, encompassing, for the first time, green data and every kind of environmental specs for sustainable design and green practice.

Environmental Strategies for Design of Sustainable Buildings in Technique of Green Eco-Architecture

Architecture is defined as a symbiosis of function, aesthetics, technology and economics. This paper introduces the concept of development of technology in architecture for a sustainable society. The concept is based on a systemic link building-climate-energy. The scientific analysis of this link allows us to define three technical levels of modern architecture. The lowest level is represented by low energy architecture that gives priority to the element of energy. Climate is defined only by physical parameters here. It is characterized by the production of emissions that deplete the Biocapacity of the Earth. Higher level of architecture is represented by green architecture which gives equal priority to both energy and ecology. Climate is defined by physical and chemical parameters here. It is characterized by the tendency of reduction of emissions production and move towards environmentally clean energy, material and water sources. Sustainable architecture represents the target program of development of human settlements in the interaction of society-energy-ecology. It is characterized by the balance of categories nature-man-technology and by minimizing the emissions production to the extent of their coverage by the Earth＇s ecosystems. This paper introduces design strategy for green building. The basic structure of the strategy defines, and internal structure of the strategy emphasizes, principles and concepts of green buildings. In this strategy, the vital role is played by renewable energy sources as a production technology of the capital provided to man by nature.

Green Marketing and Renewable Energy： Evidence on Motivations and Behaviour in the Aquacultural Market

The purpose of this paper falls within the theoretical framework of green marketing. It investigates the relationships that exist between the motives relating to aquacultural products marketed under the private label of a traditional retailer （Coop）, the attitude towards their purchase, the perception of their quality, their reliability and the willingness to pay for them. Particular importance is given to the green motives, those that lead to a preference for a product made with specific renewable energies such as biogas. The structural equation models （SEM） technique is used to develop propositions representing a theoretical approach to the integration of green marketing, in the context of the process for purchasing Coop brand fish. With regard to distinguishing between the motives, we referred to the approach that sets out three different types of motive： clean, green and ethical. The resulting managerial implications make it possible to assess how much the different types of motive influence the choices of the consumers. Managers will benefit from the results of this paper by understanding better the benefits for consumers of aquacultural products from renewable energy such as biogas. The originality of the paper lies in its focusing on green purchase behaviour in a poorly investigated sector such as that of fish breeding. The paper contributes to an understanding of the factors that influence environmentally responsible purchase behaviour and their exact relationships, that are still unclear in literature. The fact that environmental issues and concerns are constantly changing implies that ongoing research into their influence on consumer behaviour is essential

An Ecological Compensation Mechanism based on the Green Productive Area of Cities

China’s urban expansion,food security,and energy transition are in a critical situation.One solution is to tap into the green production potential of the built urban environment and explore new ways to save land space and alleviate ecological pressure through food and solar energy production.This paper differs from previous ecological compensation studies,which mostly focus on key ecological functional areas or fiscal compensation mechanisms,in that it innovatively establishes an ecological compensation mechanism within the urban space.In this paper,we propose the"green productive area"of cities as a way to measure the ecological carrying capacity improvement potential of cities from the perspective of urban ecology,and it is based on converting the green resource income of cities into the ecological footprint area they could save under the same conditions.First,a typological approach was used to establish a compensation strategy for green production.Second,a spatial inventory was taken of all elements of the built environment and an analysis of their green production potential was carried out.Finally,it was necessary to establish a unified accounting standard for the ecological land saving benefits of different green production options,which could be converted into green productive land area indicators.In the case of Xuefu Street in Nankai District,Tianjin,the available rooftops and idle land were used for green production,which supplemented the ecological carrying capacity provided by the natural land occupied by 12%of the buildings in the district.

A Review of the Contemporary Eco-Agricultural Technologies in China

Eco-agriculture is the principal measure for addressing the environmental issues caused by agriculture and an essential direction for agriculture in the future. Meanwhile, the development of eco-agriculture is inseparable from its technical support. At present, the eco-agricultural technologies commonly used in China can be divided into three categories according to their theoretical basis and practical types: the technologies used to realize the precision input of material resources, the technologies used to improve material circulation efficiency, and the technologies that use the principle of species symbiosis. Although these technologies provide essential support for developing eco-agriculture in China, there are also problems associated with their implementation, such as poor technical application and a low level of industrialization. Therefore, in the future development of eco-agriculture technology in China, the technologies producers should take the actual problems as guide and pay attention to the popularization, industrialization, and application of the technologies.