scholarly journals Research progress on adsorption application of attapulgite by visualization analysis in recent 30 years

2021 ◽  
Vol 252 ◽  
pp. 02074
Author(s):  
Mengxin Zhang ◽  
Hui Huang ◽  
Ru Li ◽  
Jia Zhang
Keyword(s):  
Hot Spots ◽  
Development Trend ◽  
Research Progress ◽  
Materials Chemistry ◽  
Application Research ◽  
Efficient Utilization ◽  
Development Status ◽  
Visualization Analysis ◽  
The Core ◽  
Increasing Trend

Objective: Objective: attapulgite, as a kind of natural adsorption material with abundant reserves and friendly environment, has been widely concerned by mineral, environment, materials, chemistry and other disciplines.CiteSpace software was used to analyze the literatures about attapulgite adsorption application from 1987 to 2021 in CNKI database. Results: the amount of literature about attapulgite adsorption application showed an increasing trend year by year; The key words were: modification, kinetics, etc.; The core authors were: Shuang Ren, Mengfei Zhang, Bin Shuai etc.; The organization with the largest number of papers was the northwest Key Laboratory of plant nutrition and agricultural environment, Ministry of agriculture. Conclusion: this paper deeply analyzes the development status and current hot spots of attapulgite in the field of adsorption application research, and forecasts the future development trend, in order to promote the efficient utilization of attapulgite and provide reference for the next research.

scholarly journals Research progress of analysis method of slope stability combined with hot spots

2020 ◽  
Vol 198 ◽  
pp. 02008
Author(s):  
XIE Qiao ◽  
ZHANG Jia-sheng ◽  
Wang Xuan
Keyword(s):  
Slope Stability ◽  
Hot Spots ◽  
Development Trend ◽  
Research Progress ◽  
Analysis Methods ◽  
Scope Of Application ◽  
The Times ◽  
The Development Trend ◽  
Selection Of

The analysis methods and theories of slope stability are constantly improving and developing, and more methods in line with the development characteristics of the times have been put forward by scholars at home and abroad. Combined with the latest research hot spots in the direction of analysis methods of slope stability in the world, the analysis methods of slope stability are systematically classified and summarized; The principles, characteristics, scope of application of various methods are summarized; The development trend of slope stability analysis is comprehensively analyzed from various aspects. It provides the follow-up scholars with the research of new methods. It can provide reference for the selection of evaluation methods of practical slope engineering stability.

Research status and progress of microwave associated leaching

2020 ◽  
Vol 07 ◽  
Author(s):  
Jinjia Du ◽  
Yong Yang ◽  
Mamdouh Omran ◽  
Shenghui Guo
Keyword(s):  
Microwave Heating ◽  
Metallurgical Industry ◽  
Research Progress ◽  
Microwave Technology ◽  
Development Status ◽  
The Core ◽  
Leaching Process ◽  
Core Technology ◽  
Detailed Classification ◽  
Heating Technology

: Microwave heating technology, as a new green metallurgical method, is the core technology used in metallurgical engineering. Based on a brief overview of the principle of microwave technology heating and its application in the metallurgical industry, this paper summarizes the latest research progress and development status of the current microwave heating technology in the hydrometallurgy leaching process and the trend of the application of microwave heating technology in metallurgy. A detailed classification and discussion on the leaching process of common metals is made. The purpose is to further improve the application level of the technology and provide technical support for the improvement of the market position of China’s metallurgical industry. Finally, the problems that need to be solved urgently in the hydrometallurgy of microwave-assisted leaching are further discussed and prospects and suggestions are made.

The Research Progress of Epoxy Resin Coating in Building Waterproof

2013 ◽  
Vol 671-674 ◽  
pp. 1779-1782 ◽  
Author(s):  
Bing Tao Liu ◽  
Guang Yu Zhu ◽  
Peng Ju Ding
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Development Trend ◽  
Research Progress ◽  
Research Development ◽  
Adhesive Properties ◽  
Development Status ◽  
Resin Coating ◽  
Epoxy Resin Coating ◽  
The Development Trend

Polymer epoxy resin is widely used in coatings and adhesives because of its excellent mechanical properties, adhesive properties, resistance to water and resistance to chemicals. In this paper, the research development status of the epoxy resin coating in building waterproof is reviewed. The preparation, performance measurement and application of epoxy resin waterproof coating are introduced, and the development trend of building waterproof coating is forecasted.

scholarly journals Analysis of Development Status of High Performance Water-based Drilling Fluid

2021 ◽  
Vol 8 (10) ◽  
Keyword(s):  
High Performance ◽  
Oil And Gas ◽  
Drilling Fluid ◽  
Development Trend ◽  
Research Progress ◽  
Development Status ◽  
Deep Wells ◽  
Water Based ◽  
Unconventional Oil And Gas ◽  
The Impact

Deep wells, ultra deep wells and unconventional oil and gas exploitation have gradually become the focus of exploration and development. The oil-based drilling fluid is gradually replaced by water-based drilling fluid because of the impact of cost and environmental protection factors. In order to better replace oil-based drilling fluid, research on high-performance water-based drilling fluid has been carried out at home and abroad, and its comprehensive performance has gradually approached that of oil-based drilling fluid. The research progress and future development trend of high performance water-based drilling fluid abroad are introduced.

scholarly journals Research status and application of prefabricated concrete frame joints

2021 ◽  
Vol 260 ◽  
pp. 03025
Author(s):  
Mo Sha ◽  
Ping Liu ◽  
Jierui Gao ◽  
Hua Ma
Keyword(s):  
Performance Improvement ◽  
Concrete Structure ◽  
Production Efficiency ◽  
Engineering Application ◽  
Development Trend ◽  
Research Progress ◽  
Construction Site ◽  
Concrete Frame ◽  
The Core ◽  
At Home

Prefabricated concrete structure has the advantages of less energy consumption, easy quality control, fast construction speed, good construction site environment, and less contraction crack. As one of the important development directions of building structure at home and abroad, it is not only conducive to the development of China's construction industrialization and the improvement of production efficiency, but also greatly reduces the construction waste. The design of the connection between beam and column in the core plays an important role in the normal use and seismic performance improvement of the whole concrete structure. This paper reviews the research progress of prefabricated concrete frame joints both at home and abroad, introduce some applications of new connection, and analyses the merit and demerit of various connection methods and future development trend, in order to provide design reference for the engineering application of prefabricated concrete structure.

scholarly journals Research Progress and Development Trends of Acoustic Metamaterials

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 4018
Author(s):  
Hao Song ◽  
Xiaodong Ding ◽  
Zixian Cui ◽  
Haohao Hu
Keyword(s):  
Doppler Effect ◽  
Negative Refraction ◽  
Development Trend ◽  
Atomic Clusters ◽  
Research Progress ◽  
Acoustic Metamaterials ◽  
Development Trends ◽  
Related Research ◽  
The Past ◽  
Anomalous Doppler Effect

Acoustic metamaterials are materials with artificially designed structures, which have characteristics that surpass the behavior of natural materials, such as negative refraction, anomalous Doppler effect, plane focusing, etc. This article mainly introduces and summarizes the related research progress of acoustic metamaterials in the past two decades, focusing on meta-atomic acoustic metamaterials, metamolecular acoustic metamaterials, meta-atomic clusters and metamolecule cluster acoustic metamaterials. Finally, the research overview and development trend of acoustic metasurfaces are briefly introduced.

Digital printing technology and its application in packaging printing

2021 ◽  
pp. 002072092199660
Author(s):  
Bo Peng
Keyword(s):  
Economic Development ◽  
Publishing Industry ◽  
Development Trend ◽  
Digital Printing ◽  
Printing Technology ◽  
The Core ◽  
Technical Content ◽  
Graphic Information ◽  
Challenges And Opportunities ◽  
Printing Machine

Today, with the increasingly rapid economic development and diversified consumer demands, the printing and publishing industry is also facing challenges and opportunities. Under this background, the emerging digital printing technology, which USES modern digital system to transmit graphic information to digital printing machine through network, has gradually become the core technical content of the printing field. Based on the emergence and characteristics of digital printing, this paper focuses on the application of digital printing technology in packaging printing, and predicts the future development trend of digital printing technology, hoping to help readers understand the knowledge of digital printing technology.

Recent Advances in the Study of Film Cooling on the Gas Turbine Blade

2014 ◽  
Vol 971-973 ◽  
pp. 143-147 ◽  
Author(s):  
Ping Dai ◽  
Shuang Xiu Li
Keyword(s):  
Gas Turbine ◽  
Turbine Blade ◽  
Film Cooling ◽  
Gas Turbines ◽  
High Performance ◽  
Leading Edge ◽  
Development Trend ◽  
Research Progress ◽  
Gas Turbine Blade ◽  
New Generation

The development of a new generation of high performance gas turbine engines requires gas turbines to be operated at very high inlet temperatures, which are much higher than the allowable metal temperatures. Consequently, this necessitates the need for advanced cooling techniques. Among the numerous cooling technologies, the film cooling technology has superior advantages and relatively favorable application prospect. The recent research progress of film cooling techniques for gas turbine blade is reviewed and basic principle of film cooling is also illustrated. Progress on rotor blade and stationary blade of film cooling are introduced. Film cooling development of leading-edge was also generalized. Effect of various factor on cooling effectiveness and effect of the shape of the injection holes on plate film cooling are discussed. In addition, with respect to progress of discharge coefficient is presented. In the last, the future development trend and future investigation direction of film cooling are prospected.

Screening and Influencing Factors of Halophilic Denitrifying Bacteria

2012 ◽  
Vol 550-553 ◽  
pp. 1455-1459
Author(s):  
Jing Tang ◽  
Hong Ming E ◽  
Jin Xiang Fu ◽  
Jin Nan Chen ◽  
Ming Fan
Keyword(s):  
Nitrogen Removal ◽  
Morphological Characteristics ◽  
Development Trend ◽  
Denitrifying Bacteria ◽  
High Salt ◽  
Research Progress ◽  
Saline Wastewater ◽  
Carbon And Nitrogen ◽  
Petroleum Chemical ◽  
Seafood Processing

With nitrite or nitrate nitrogen as electron acceptor in the high salt conditons, halophilic denitrifying bacteria can transfer nitrite or nitrate to nitrogen, thereby purifying the high-salt wastewater. Halophilic denitrifying bacteria play an important role in the carbon and nitrogen removal of saline wastewater, such as petroleum, chemical industry, seafood processing and seafood farming. This article dissussed halophilic denitrifying bacteria screening, the main types and the corresponding morphological characteristics, then we focused on the research progress of main factors of halophilic denitrifying bacteria’s growth and nitrogen removal. Finally put forward the current problems of the research and development trend of halophilic denitrifying bacteria.

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