scholarly journals Design and Analysis of Materials’ Environmental Compatibility

2021 ◽  
Vol 245 ◽  
pp. 02004
Author(s):  
Zeng Cheng
Keyword(s):  
Life Cycle ◽  
Development Trend ◽  
Organic Polymer ◽  
Ecological Environment ◽  
Environmental Compatibility ◽  
Environmental Materials ◽  
Regeneration Cycle ◽  
Removal Of Impurities ◽  
The Development Trend ◽  
Application Prospects

The material should be in harmony with the environment during its life cycle. This article reviews the origin, concept, research status and application prospects of eco-environmental materials, discusses the environmental coordination evaluation methods of eco-environmental materials, discusses the principles and methods of environmental coordination design of various materials, and lists several typical examples of research on eco-environmental materials. It focuses on the separation and removal of impurities during the alloy regeneration cycle, as well as the organic polymer regeneration cycle technology. In this regard, this article conducts a series of analyses on the development trend of ecological environment materials.

scholarly journals Analysis on the Development Trend of Marine Fishery Governance

2020 ◽  
Vol 9 (7) ◽  
pp. 32
Author(s):  
Zhi Chen ◽  
Chaojie Yang ◽  
Wubo Wan ◽  
Yongzhen Liu ◽  
Zhenbo Chen ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Development Trend ◽  
Marine Ecology ◽  
Ecological Environment ◽  
Marine Fisheries ◽  
The Sustainable Development ◽  
Marine Fishery ◽  
Marine Economy ◽  
Fishery Governance ◽  
The Development Trend

Marine fishery is an important part of China’s economic development. Marine fishery is not only related to the development of marine economy, but also the marine ecological environment. It is very important to promote the competitiveness of marine fisheries, protect marine ecology, and explore the sustainable development of marine fisheries. In this regard, this article analyzes the development trend of marine fisheries, analyzes the current problems in marine fishery governance, and explores effective countermeasures for the development of marine fishery governance, hoping to provide some ideas for promoting marine fishery governance and enhancing the benefits of marine fishery development.

Progress and Research of Organic Polymeric Flocculant in Water Treatment

2011 ◽  
Vol 347-353 ◽  
pp. 707-710
Author(s):  
Yong Zhan ◽  
Yu Wang ◽  
Bin Dong
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
External Environment ◽  
Treatment Method ◽  
Development Trend ◽  
Organic Polymer ◽  
Key Factor ◽  
Polymer Flocculation ◽  
The Development Trend ◽  
Effective Water

coagulation and sedimentation method is an effective water treatment method, and the key factor is the choice of flocculant, according to its different chemical composition, it is generally divided into inorganic, organic, microbial flocculants. Because of the small dosage ,fast flocculation and less effect by external environment , organic polymeric flocculant has widely used in wastewater treatment. This paper describes some types of organic polymer flocculation and its research and application. finally,the development trend of organic polymeric flocculant was predicted.

scholarly journals Trend Analysis of Pakistan Railways Based on Industry Life Cycle Theory

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Xuemei Li ◽  
Khalid Mehmood Alam ◽  
Shitong Wang
Keyword(s):  
Life Cycle ◽  
Trend Analysis ◽  
Principal Component ◽  
Development Trend ◽  
Industry Life Cycle ◽  
Life Cycle Theory ◽  
Political Interference ◽  
Railway Industry ◽  
Industrial Life Cycle ◽  
The Development Trend

The core purpose of this paper was to analyze the trend analysis of Pakistan railways from the year 1950 to 2015, using the principal component analysis method and industrial life cycle theory. Industrial life cycle theory, the development trend analysis of Pakistan railway industry, entails four stages: introduction, growth, maturity, and decline. The results indicated that railway industry in Pakistan was at its pinnacle in the middle of the seventies and thereafter the decline of railway industry was observed. The main reasons behind the decline were underinvestment, political interference, and the rise of the same-sector competitor, the National Logistics Cell (NLC). From the year 2011, it experienced an upward trend of combined utility curve and showed a new round of industry life cycle. To revive its previous glory, the current government has proposed a development document for Pakistan railways, Vision 2025. It is envisaged that railways share in transportation will be increased from current 4% to 20% by the year 2025, which seems to be an onerous challenge for the organization.

Development Trend of Traffic Tools and Prospect of Ecological Environment Functional Materials

2010 ◽  
Vol 178 ◽  
pp. 83-85
Author(s):  
Jia Qi Zhang ◽  
Jian Hua Li
Keyword(s):  
Life Cycle ◽  
Product Life Cycle ◽  
Fossil Fuels ◽  
Functional Materials ◽  
Development Trend ◽  
Ecological Environment ◽  
Environment Protection ◽  
World Energy ◽  
Development Direction ◽  
Energy Shortage

In the background of world energy shortage, traffic tools supplied by fossil fuels have come into the decline of product life cycle, and it will be replaced by new ones. Because the development of new traffic tools is based on the design principles of energy conservation and environment protection, the ecological environment function material certainly needs to meet various requirements. The design of new traffic tools and the development direction of ecological environment functional materials in this field are illustrated in this paper.

scholarly journals The development trend of AC-style PDPs

1998 ◽  
Vol 82 (Appendix) ◽  
pp. 311-311
Author(s):  
Tetsuji Okajima ◽  
Chizuka Tani
Keyword(s):  
Development Trend ◽  
The Development Trend

scholarly journals Experimental Study on Wake Evolution of a 1.5 MW Wind Turbine in a Complex Terrain Wind Farm Based on LiDAR Measurements

2020 ◽  
Vol 12 (6) ◽  
pp. 2467 ◽  
Author(s):  
Fei Zhao ◽  
Yihan Gao ◽  
Tengyuan Wang ◽  
Jinsha Yuan ◽  
Xiaoxia Gao
Keyword(s):  
Wind Speed ◽  
Wind Shear ◽  
Wind Farm ◽  
Wind Farms ◽  
Field Measurements ◽  
Development Trend ◽  
Asymmetric Distribution ◽  
Lidar Measurements ◽  
Wind Characteristics ◽  
The Development Trend

To study the wake development characteristics of wind farms in complex terrains, two different types of Light Detection and Ranging (LiDAR) were used to conduct the field measurements in a mountain wind farm in Hebei Province, China. Under two different incoming wake conditions, the influence of wind shear, terrain and incoming wind characteristics on the development trend of wake was analyzed. The results showed that the existence of wind shear effect causes asymmetric distribution of wind speed in the wake region. The relief of the terrain behind the turbine indicated a subsidence of the wake centerline, which had a linear relationship with the topography altitudes. The wake recovery rates were calculated, which comprehensively validated the conclusion that the wake recovery rate is determined by both the incoming wind turbulence intensity in the wake and the magnitude of the wind speed.

Application of Ubiquitous Sensor Network in Collection and Analysis of CNC Machine Tool Processing Status Information

2010 ◽  
Vol 455 ◽  
pp. 621-624
Author(s):  
X. Li ◽  
Y.Y. Yu
Keyword(s):  
Machine Tool ◽  
Sensor Network ◽  
Machine Tools ◽  
Thermal Error ◽  
Development Trend ◽  
Cnc Machine Tools ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Status Information ◽  
The Development Trend

Because of the practical requirement of real-time collection and analysis of CNC machine tool processing status information, we discuss the necessity and feasibility of applying ubiquitous sensor network(USN) in CNC machine tools by analyzing the characteristics of ubiquitous sensor network and the development trend of CNC machine tools, and application of machine tool thermal error compensation based on USN is presented.

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