Review of Progress and Applications of Controlled Permeability Formwork in Concrete Engineering

2013 ◽  
Vol 821-822 ◽  
pp. 171-178
Author(s):  
Zhi Qian Yang ◽  
Jian Zhong Liu ◽  
Wei Lin ◽  
Jia Ping Liu ◽  
De Gen Xu
Keyword(s):  
Structural Characteristics ◽  
Engineering Applications ◽  
Development Direction ◽  
Concrete Property ◽  
Paper Review ◽  
Further Development

CPF is a kind effective and promising non-woven liner for common formwork to improve the concrete property. This paper review the definition, structural characteristics, effectiveness and engineering applications of CPF, moreover, the problems and further development direction of CPF also have been discussed.

scholarly journals Recent Developments of Antimony-Based Anodes for Sodium- and Potassium-Ion Batteries

2021 ◽  
Author(s):  
Bochao Chen ◽  
Ming Liang ◽  
Qingzhao Wu ◽  
Shan Zhu ◽  
Naiqin Zhao ◽  
...  
Keyword(s):  
Structural Characteristics ◽  
Low Cost ◽  
Potassium Ion ◽  
Research Progress ◽  
Research Directions ◽  
Weak Charge ◽  
Recent Developments ◽  
High Theoretical Capacity ◽  
Further Development ◽  
Sodium And Potassium

AbstractThe development of sodium-ion (SIBs) and potassium-ion batteries (PIBs) has increased rapidly because of the abundant resources and cost-effectiveness of Na and K. Antimony (Sb) plays an important role in SIBs and PIBs because of its high theoretical capacity, proper working voltage, and low cost. However, Sb-based anodes have the drawbacks of large volume changes and weak charge transfer during the charge and discharge processes, thus leading to poor cycling and rapid capacity decay. To address such drawbacks, many strategies and a variety of Sb-based materials have been developed in recent years. This review systematically introduces the recent research progress of a variety of Sb-based anodes for SIBs and PIBs from the perspective of composition selection, preparation technologies, structural characteristics, and energy storage behaviors. Moreover, corresponding examples are presented to illustrate the advantages or disadvantages of these anodes. Finally, we summarize the challenges of the development of Sb-based materials for Na/K-ion batteries and propose potential research directions for their further development.

Development and Application of Manganese Cobalt Lithium Compounds in the Field of Lithium Batteries

2015 ◽  
Vol 1088 ◽  
pp. 275-278
Author(s):  
Yao Tang ◽  
Zhao Lin Zhan ◽  
Xiao Hua Yu ◽  
Miao Ma ◽  
Xiao Yu Li
Keyword(s):  
Cathode Material ◽  
Future Development ◽  
Lithium Batteries ◽  
Lithium Battery ◽  
Structural Characteristics ◽  
Electrochemical Characteristics ◽  
Lithium Compounds ◽  
Development Direction ◽  
Cobalt Compounds ◽  
Lithium Cobalt

Manganese lithium cobalt compounds have been used in the preparation of lithium battery cathode material because of its excellent electrochemical characteristics and gradually in recent years. This paper introduces the different methods of preparing the compounds, analyzes the structural characteristics of the manganese cobalt lithium compounds and the differences in the electrochemical properties, the end of the article has carried on the forecast to the future development direction of the compound.

scholarly journals Secondary Metabolites from Gorgonian Corals of the Genus Eunicella: Structural Characterizations, Biological Activities, and Synthetic Approaches

Molecules ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 129
Author(s):  
Dario Matulja ◽  
Maria Kolympadi Markovic ◽  
Gabriela Ambrožić ◽  
Sylvain Laclef ◽  
Sandra Kraljević Pavelić ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Biological Activities ◽  
Structural Characteristics ◽  
Antimicrobial Activities ◽  
Chemical Structures ◽  
Gorgonian Corals ◽  
Synthetic Approaches ◽  
Further Development

Gorgonian corals, which belong to the genus Eunicella, are known as natural sources of diverse compounds with unique structural characteristics and interesting bioactivities both in vitro and in vivo. This review is focused primarily on the secondary metabolites isolated from various Eunicella species. The chemical structures of 64 compounds were divided into three main groups and comprehensively presented: a) terpenoids, b) sterols, and c) alkaloids and nucleosides. The observed biological activities of depicted metabolites with an impact on cytotoxic, anti-inflammatory, and antimicrobial activities were reviewed. The most promising biological activities of certain metabolites point to potential candidates for further development in pharmaceutical, cosmetic, and other industries, and are highlighted. Total synthesis or the synthetic approaches towards the desired skeletons or natural products are also summarized.

An Analysis of Archiving Strategies in Web Archive

2012 ◽  
Vol 182-183 ◽  
pp. 1933-1937
Author(s):  
Ya Feng Li ◽  
Ying Lin
Keyword(s):  
Data Storage ◽  
Internet Applications ◽  
Advantages And Disadvantages ◽  
Development Direction ◽  
International Projects ◽  
Paper Review ◽  
Web Archive

Web archive is an important technology in the field of data storage and Internet applications. Over the years, many countries have developed various system and prototype. The archive strategy is one of the key elements in Web archive. This paper review the storage strategies developed by several international projects, focusing on the analysis of the four strategies: archiving with external index, archiving with multi- master, format migration archiving, and characteristic described archiving. After summing up the advantages and disadvantages of these strategies, the proposals on the development direction and research content of archive strategy are given at the end of the article.

Summary of the New Rutting Tests of China

2012 ◽  
Vol 193-194 ◽  
pp. 905-909
Author(s):  
Hao Liu ◽  
Hong Xin Guan ◽  
Zeng Jie Luo
Keyword(s):  
Working Condition ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Test Methods ◽  
Test Method ◽  
Asphalt Pavements ◽  
Simulation Test ◽  
Engineering Applications ◽  
Basic Principles ◽  
Development Direction

The asphalt pavement is the mainstream pavement structure of the expressway in our country. But it is investigated that rutting disease appeared even though the asphalt mixture was test qualified. With this instruction, the standard rutting test method has difficult in satisfying the complex working condition of asphalt pavement. In order to solve these, some new rutting test methods which are in accordance with privileged conditions have been proposed from theory and simulation test by many scholars’ deeper research, including lots of feasible methods. By summarized the new anti-rutting methods of asphalt pavements and described all kinds of basic principles and engineering applications, the deficiency of the new rutting test methods was pointed out and the development direction was proposed.

Study on Digital Substation in Green Environment Engineering

2014 ◽  
Vol 484-485 ◽  
pp. 282-285
Author(s):  
Xiao Zhou Fan
Keyword(s):  
Basic Unit ◽  
Network Communication ◽  
Engineering Applications ◽  
Iec 61850 ◽  
Related Research ◽  
Electronic Transformer ◽  
Important Development ◽  
Development Direction ◽  
Digital Substation ◽  
The Future

The paper has introduced the concept, characteristics, related research and engineering applications of digital substation. Combined with implementation of the electronic transformer, intelligent terminals, network communication and the IEC 61850, it has also clarified that the carrying out of the construction of digital substation at this stage is a feasible plan. And it pointed out that digital substation is an important development direction of the substation technology as a basic unit of the digital grid in the future.

A Review of Bioactive Peptides: Chemical Modification, Structural Characterization and Therapeutic Applications

2020 ◽  
Vol 16 (12) ◽  
pp. 1687-1718
Author(s):  
Huiwen Hou ◽  
Juan Wang ◽  
Jie Wang ◽  
Wen Tang ◽  
Abdul Sami Shaikh ◽  
...  
Keyword(s):  
Half Life ◽  
Bioactive Peptides ◽  
Structural Characteristics ◽  
The Body ◽  
Biologically Active ◽  
Bioactive Peptide ◽  
Protein Drugs ◽  
Active Peptides ◽  
Biologically Active Peptides ◽  
Further Development

In recent years, the development and applications of protein drugs have attracted extensive attention from researchers. However, the shortcomings of protein drugs also limit their further development. Therefore, bioactive peptides isolated or simulated from protein polymers have broad application prospects in food, medicine, biotechnology, and other industries. Such peptides have a molecular weight distribution between 180 and 1000 Da. As a small molecule substance, bioactive peptide is usually degraded by various enzymes in the organism and have a short half-life. At the same time, such substances have poor stability and are difficult to produce and store. Therefore, these active peptides may be modified through phosphorylation, glycosylation, and acylation. Compared with other protein drugs, the modified active peptides are more easily absorbed by the body, have longer half-life, stronger targeting, and fewer side effects in addition to higher bioavailability. In the light of their functions, bioactive peptide can be divided into antimicrobial, anti-tumour, anti-angiogenic, antioxidant, anti-fatigue, and anti-hypertensive peptides. This article mainly focuses on the introduction of several promising biologically active peptides functioning as antimicrobial, anti-tumour, antiangiogenic, and antioxidant peptides from the three aspects modification, structural characteristics and mechanism of action.

Selective hydrogen-deuterium exchange in graphitic carbon nitrides: probing the active sites for photocatalytic water splitting by solid-state NMR

2021 ◽  
Author(s):  
Ruidi Wang ◽  
Beibei Xv ◽  
Jiachen Wang ◽  
Xue Lu Wang ◽  
Yefeng Yao
Keyword(s):  
Reaction Mechanisms ◽  
Solid State Nmr ◽  
Active Sites ◽  
Carbon Nitride ◽  
Molecular Level ◽  
Structural Characteristics ◽  
Graphitic Carbon ◽  
Hydrogen Deuterium Exchange ◽  
Hydrogen Deuterium ◽  
Further Development

Graphitic carbon nitride (g-C3N4), the relationships between whose structural characteristics and the photocatalytic reaction mechanisms still remains unclarified at the molecular level, severely hinders the further development of this field....

Research Status and Prospect on Dynamics of Tank Automotive

2013 ◽  
Vol 380-384 ◽  
pp. 23-26
Author(s):  
Song Li ◽  
Li Min Song ◽  
Xiu Juan Liu ◽  
Yuan Yuan Sun ◽  
Xiao Lei Liu
Keyword(s):  
Future Development ◽  
Structural Design ◽  
Poor Performance ◽  
Road Transport ◽  
Key Technology ◽  
The Road ◽  
Development Direction ◽  
The Status ◽  
Cost Efficient ◽  
Further Development

Due to tractor trailers cost-efficient features, its share in the road transport market is increasing. But its multi-axis structural design is unsatisfactory. There is poor performance and drivability problems, which greatly limiting its further development. This has become the focus of researchers. This paper elaborated the status of tankers dynamics research home and abroad. The key technology and future development direction are pointed out in the field of tankers dynamics research.

Constructing hybrid gridshells using bending-active formwork

2020 ◽  
Vol 35 (3) ◽  
pp. 80-89
Author(s):  
Simon Schleicher ◽  
Michael Herrmann
Keyword(s):  
Raw Materials ◽  
Structural Characteristics ◽  
Construction Method ◽  
Added Value ◽  
The Novel ◽  
Structural Reinforcement ◽  
Thin Carbon ◽  
Key Aspects ◽  
Material Utilization ◽  
Further Development

Aiming to promote a more sustainable approach to material utilization in architecture, this article presents an alternative construction method for lightweight and efficient concrete structures. The strategic focus is placed on building wide-spanning roof structures like vaults, domes, and freeform shells with the lowest possible input of raw materials and energy. To achieve this objective, the article explores the novel idea of using bending-active structures, made from millimeter-thin carbon fiber strips, as lost formwork and structural reinforcement for the production of hybrid gridshells. After a general introduction to the state-of-the-art in concrete construction, the authors discuss opportunities and challenges related to flexible formwork designs and their possible impacts on the building industry. Relying on the example of a built prototype, the authors present a promising design methodology and analyze the gridshell’s geometrical and structural characteristics throughout different stages of the construction process. The article concludes by discussing the added value of this research and identifying the key aspects that need to be considered in the further development of this construction method.

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