scholarly journals Research Progress in Ordered Nanomaterials via Magnetic Field Induced Preparation

2020 ◽  
Vol 218 ◽  
pp. 03029
Author(s):  
Yunhao Liu ◽  
Mingzhe Lv ◽  
Chao Wang ◽  
Zuyu He ◽  
Chuang Zhou ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Self Assembly ◽  
Preparation Method ◽  
Reaction System ◽  
Research Direction ◽  
Research Progress ◽  
Future Research ◽  
Excellent Performance ◽  
Indirect Contact ◽  
Metal Nanomaterials

Ordered nanomaterials are widely concerned for their excellent performance in mechanics, electricity, optics and magnetism. Magnetic field induced self-assembly is widely used for the preparation of ordered nanomaterials, which has the advantages of indirect contact with the reaction system, controllable adjustment of magnetic field. By using this preparation method, it can realize the alignment of nanomaterials without affecting the comprehensive performance of each component in the system. In this paper, we reviewed magnetic field induced self-assembly of metal nanomaterials, oxide nanomaterials and nanocomposites. We also looked forward to the future research direction.

scholarly journals Conceptualization and Research Progress on Web-Based Product Co-Design

Informatics ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 30
Author(s):  
Xin Kang ◽  
Jian Kang ◽  
Wenyin Chen
Keyword(s):  
Design Research ◽  
Web Of Science ◽  
Research Direction ◽  
Research Trends ◽  
Research Progress ◽  
Future Research ◽  
Web Based ◽  
Development Status ◽  
Key Points ◽  
Core Concepts

Web-based stakeholders’ participation in product co-design is an emerging business model for companies. However, research on user’s online involvement in product co-design is limited. In this paper, we investigated the three major interdisciplinary academic databases Web of Science, Scopus, and ScienceDirect (data collected in May 2020), with the aim of explaining the meaning, core concepts, historical roots, and research trends of co-design. A total of 39 of the deemed relevant studies were emphatically analyzed, systematically discusses the concept implication and development status of co-design, and the key points of web-based product co-design research, as well as the future research direction.

Research Progress of 3D Style Design Based on Sketching

2013 ◽  
Vol 423-426 ◽  
pp. 1819-1822
Author(s):  
Cui Xian Xuan ◽  
Yong Jian Gong ◽  
Qiang Li
Keyword(s):  
3D Modeling ◽  
Research Direction ◽  
Modeling Method ◽  
Research Progress ◽  
Future Research ◽  
Future Research Direction ◽  
The Future ◽  
Other Information ◽  
Digital Pen

This paper summarizes research progress of 3D style design based on sketching, especially focuses on 3D modeling method based on sketching, 3D stroke fitting. The future research direction on multi-strokes fitting and the use of digital pen pressure and other information for style design are proposed.

Research Progress of Three Kinds of Enhanced Heat Transfer Structures

2013 ◽  
Vol 711 ◽  
pp. 219-222
Author(s):  
Zhan Shu He ◽  
Xiao Long Liu ◽  
Xue Fei Yang
Keyword(s):  
Heat Transfer ◽  
Pressure Drop ◽  
Heat Transfer Performance ◽  
Metal Foam ◽  
Porous Metal ◽  
Research Direction ◽  
Research Progress ◽  
Future Research ◽  
Transfer Performance ◽  
Enhanced Heat Transfer

In order to transfer heat as much as possible through a unit area in unit time, this paper introduces three enhanced heat transfer structures, namely microchannel, open-celled metal foam and open-celled sintered porous metal. From two aspects of the heat transfer performance and the flow resistance, this paper reviews their research progress. Among three kinds of enhanced heat transfer structures, open-celled sintered porous metal has the best heat transfer performance, followed by open-celled metal foam and micro-channel. While, the sequence of the pressure drop of three kinds of enhanced heat transfer structures is in the reverse order. Thus, Enhanced heat transfer Structures with good heat transfer performance and small pressure drop are the future research direction.

scholarly journals Research progress and prospects of green development from the perspective of geography

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Jiamin Ren ◽  
Yanji Ma
Keyword(s):  
Sustainable Development ◽  
Global Financial Crisis ◽  
Basic Research ◽  
Research Direction ◽  
Analytical Framework ◽  
Research Field ◽  
Research Progress ◽  
Future Research ◽  
Industrial Transformation ◽  
Green Development

Influenced by global financial crisis in 2008, many countries around the world have realized the significance of sustainable development. And green development, as the most important pathway to sustainability, has been implemented by various countries. In this context, green development has drawn great attention from academic researchers both at home and abroad in recent years and has become an interdisciplinary-oriented research direction. As an applied basic research field for exploring the structural change of resources and environment as well as regional sustainable development, geography plays an essential role in the research of green development. Based on an intensive literature review, this article firstly summarized the connotation and analytical framework of green development. Secondly, it systematically outlined the progress of green development research from the perspective of geography and thus extracted seven themes, that is, the influencing factors of green development, assessment methods, spatial and temporal characteristics of green development, green development and industrial transformation, green transformation of resource-based cities, the effect of green development, and green development institutions and recommendations. Comments were made on the existing studies including their shortcomings. Finally, future research emphases were discussed, aiming to provide references for further study on green development from the perspective of geography in China.

Application of Reverse Osmosis Membrane in Wastewater Treatmente

2015 ◽  
Vol 737 ◽  
pp. 661-663
Author(s):  
Xiao Ming Sun ◽  
Jing Yang Liu ◽  
Qi Qiao ◽  
Yue Zhang ◽  
Na Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Organic Matter ◽  
Reverse Osmosis ◽  
Research Direction ◽  
Research Progress ◽  
Future Research ◽  
Reverse Osmosis Membrane ◽  
Future Research Direction ◽  
Membrane Materials ◽  
Separation Rate

Reverse osmosis membrane is usually used to desalination. With the development of membrane materials and technology, the performance of reverse osmosis membrane is improved continuously, and the interception rate of organic matter is higher, the separation rate of the organic matter is obviously improved. The research progress and application status of separating organics in aqueous solution by reverse osmosis membrane is presented in this paper. The future research direction and application of reverse osmosis membrane for separating organics from aqueous solution were also analyzed and prospected.

Research Progress in the Ecotourism Environmental Carrying Capacity

2013 ◽  
Vol 869-870 ◽  
pp. 781-785
Author(s):  
Yong Hong Li ◽  
Bao Xiang
Keyword(s):  
Bearing Capacity ◽  
Carrying Capacity ◽  
Research Evaluation ◽  
Research Direction ◽  
Research Progress ◽  
Future Research ◽  
Origin And Evolution ◽  
Evaluation Indexes ◽  
Environmental Carrying Capacity ◽  
Classification Evaluation

with occurrence of a series of problems, such as overdevelopment of ecotourism resources, environmental pollution and landscape ecological destruction, it is very urgent to research evaluation on the ecotourism environmental carrying capacity (hereinafter as EECC). It is of great significance for such research and application to the sustainable development of tourist industry and ecotope protection for tourism district. This paper summarizes origin and evolution of the domestic and international concept of ecotourism bearing capacity, systematically summarizes and analyzes concept, classification, evaluation indexes and research method about the ecotourism bearing capacity. Finally, it concludes the space remains to be improved during the current research on ecotourism bearing capacity, and prospects on future research direction.

scholarly journals Self-assembly mechanism of Ni nanowires prepared with an external magnetic field

2015 ◽  
Vol 6 ◽  
pp. 2123-2128 ◽  
Author(s):  
Xiaoyu Li ◽  
Hu Wang ◽  
Kenan Xie ◽  
Qin Long ◽  
Xuefei Lai ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Self Assembly ◽  
Chemical Reduction ◽  
Reaction System ◽  
The Self ◽  
Nickel Nanowires ◽  
Assembly Mechanism ◽  
Nickel Particles ◽  
First Time

Nickel nanowires with a mean diameter of about 95 nm and lengths of up to 26 μm were prepared by a chemical reduction method in aqueous solution under an external magnetic field. The self-assembly mechanism was investigated in detail. The results indicate that the self-assembly process of Ni nanowires consists of three stages: nucleation and growth, ordered alignment and self-assembly, and deposition on the surface and gaps between the nickel particles. The self-assembly phenomenon occurs only when nickel particles grow to a size of about 60 nm in the reaction system. This critical size, which is proposed for the first time, is very important to comprehend the self-assembly mechanism of Ni nanowires prepared with an external magnetic field.

Research Progress of Shallow Salt Groundwater in Inland Region

2012 ◽  
Vol 256-259 ◽  
pp. 2594-2597
Author(s):  
Li Yan Wang ◽  
Li Ting Xing ◽  
Yong Zhang ◽  
Feng Juan Zhang ◽  
Bei Bei Sun
Keyword(s):  
Water Resources ◽  
Weak Link ◽  
Salt Water ◽  
Research Effort ◽  
Research Direction ◽  
Research Progress ◽  
Future Research ◽  
Future Research Direction ◽  
Research Results ◽  
Environment Sustainability

The paper analyzes the research status of shallow salt groundwater at home and abroad and summarizes the research results. It studies on hydrogeochemistry action and variation of hydrogeology parameters which aparts are weak link, and then describes evolution and formation of salt water. In accordance with the principle of environment sustainability, to exploit and utilize water resources reasonably as well as completely improve salt water are mainly emphasis. Future research direction on shallow salt groundwater inland is proposed to urge the research effort to develop to new depth and width.

scholarly journals Recent progress in environmental applications of metal-organic frameworks

2020 ◽  
Author(s):  
Jianming Liu ◽  
Meichen Chen ◽  
Haohui Cui
Keyword(s):  
Self Assembly ◽  
Pore Space ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Organic Ligands ◽  
Research Progress ◽  
Future Research ◽  
High Porosity ◽  
Metal Organic ◽  
Structural Diversification

Abstract Nanomaterials have aroused the interest of many researchers and become a research hotspot in recent years and metal-organic frameworks (MOFs) included in that are a class of new organic-inorganic hybrid porous materials formed through the self-assembly of organic ligands and inorganic metal ions. MOFs have been attracting increasing attention due to their structural diversification, large specific surface area, high porosity, inerratic pore space framework. These characteristics play their advantages in different fields and make some excellent achievements. This article summarizes the research progress of metal-organic framework in the field of environment especially the remarkable achievements in adsorption and provides a clear help for understanding the research progress and prospects for future research.

scholarly journals Research Progress of Springback in Multi-Point Forming of Sheet Metal

2021 ◽  
Vol 2101 (1) ◽  
pp. 012006
Author(s):  
Xinqi Li ◽  
Shicheng Hu
Keyword(s):  
Sheet Metal ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Research Direction ◽  
Research Progress ◽  
Future Research ◽  
Shape Distortion ◽  
Forming Process ◽  
Basic Body ◽  
Springback Control

Abstract In the manufacturing of sheet metal, multi-point forming replaces the traditional integral die with discrete basic body groups to adjust the height of each basic body and form the required three-dimensional curved surface, thereby facilitating flexible processing. Multi-point forming is the most common approaches for the manufacturing of sheet metal but can cause serious shape distortion due to springback phenomena. In this paper, key research on springback is categorized and analyzed from three aspects: springback theory, springback numerical simulation analysis, and springback control, followed by summary of the current research status and outlook on promising future research directions of springback in multi-point forming springback. And the conclusion is drawn: in the future, multi-point forming of sheet metal using high-frequency ultrasonic excitation for springback control during the forming process coupled with artificial intelligence for springback compensation control will be a promising research direction for controlling springback in the multi-point forming of sheet metal.

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