Research Status and Development Trend of Electromagnetic Defect Detection Logging

2013 ◽  
Vol 325-326 ◽  
pp. 856-860
Author(s):  
Zheng Guo Yan ◽  
Lin Zhao
Keyword(s):  
Defect Detection ◽  
Hot Spot ◽  
Development Trend ◽  
Research Status ◽  
Advantages And Disadvantages ◽  
Detection Technology ◽  
Metal Thickness ◽  
Theory Research ◽  
The Development Trend

Electromagnetic defect detection logging can measure multilayer pipeline and provide the information of casing defect and the remaining metal thickness, is the hot spot of the casing defect detection technology. This paper elaborates the advantages and disadvantages of electromagnetic defect detection logging and the present instrument situation, compares technical indexes of several new electromagnetic casing defect detection instruments, summarizes the latest research status, points out the problems existed in current researches and the development trend combining with the instrument index and theory research.

scholarly journals Review and Development Trend of Digital Hydraulic Technology

2020 ◽  
Vol 10 (2) ◽  
pp. 579
Author(s):  
Qiwei Zhang ◽  
Xiangdong Kong ◽  
Bin Yu ◽  
Kaixian Ba ◽  
Zhengguo Jin ◽  
...  
Keyword(s):  
Energy Saving ◽  
Developmental Process ◽  
Development Trend ◽  
Research Status ◽  
Uniform Definition ◽  
Definition Of ◽  
The Development Trend ◽  
Exact Definition

Since the emergence of digital hydraulic technology, it has achieved good results in intelligence, integration, energy saving, etc. After decades of development, and it has also attracted wide attention in the industry. However, for many years, the definition of digital hydraulic technology has differed between researchers, and there is no uniform definition. Such a situation affects the development of it to a certain extent. Therefore, this paper gives the exact definition of digital hydraulic technology based on a large number of researches on it. At the same time, the paper analyzes the research status and developmental process of the such a technology, and we forecast the development trend of it.

scholarly journals Progress in Research and Application of Natural Polymer Coagulants

2020 ◽  
Vol 143 ◽  
pp. 02042
Author(s):  
Xiao Yu ◽  
Ying Fu
Keyword(s):  
Heavy Metal ◽  
Hot Spot ◽  
Development Trend ◽  
Status Quo ◽  
Dye Wastewater ◽  
Natural Polymer ◽  
Sludge Dewatering ◽  
Heavy Metal Wastewater ◽  
The Status ◽  
The Development Trend

In recent years, natural polymer coagulant has become a hot spot in the field of coagulants due to its safety, harmlessness and biodegradability. This paper introduced the status quo of research of natural polymer coagulants such as starch, chitosan, cellulose and lignin coagulants. And some hot applications in water treatment were discussed, such as heavy metal wastewater, dye wastewater, microalgae collection and sludge dewatering. Finally, the development trend of natural polymer coagulants was prospected.

Double-Position Positioning Test and Analysis on Holographic / Protruding Lettering of Cigarette Packet Based on Machine Vision

2013 ◽  
Vol 312 ◽  
pp. 597-602 ◽  
Author(s):  
Jie Fang Xing ◽  
Yuan Chen ◽  
Lu Jun He
Keyword(s):  
Vertical Direction ◽  
Development Trend ◽  
Production Quality ◽  
Examination System ◽  
Detection Technology ◽  
On Line ◽  
New Type ◽  
Improve Production Quality ◽  
Normal Production ◽  
The Development Trend

In order to improve production quality and efficiency of cigarette trademark, new type reel cigarette trademark on soft package adopts production mode of reel to reel, which becomes the development trend. This technique makes higher requirements on double-position connection lettering and detection technology of holographic / concave and protruding lettering. This experiment uses on-line quality examination system to conduct the relevant examinations on double-position lettering of holographic / protruding lettering of cigarette packet and makes the analysis. The experiment shows that: holographic lettering quality varies with the amount of lettering and lettering speed. For protruding lettering unit, electrified aluminium in vertical direction has a better result than that in horizontal direction. This study lays a foundation for normal production of machine and further quality inspection after lettering.

Research of Localization Issues in Underwater Sensor Networks

2012 ◽  
Vol 157-158 ◽  
pp. 424-427
Author(s):  
Xian Min Wei
Keyword(s):  
Sensor Networks ◽  
Target Tracking ◽  
Real Time ◽  
Development Trend ◽  
Underwater Sensor Networks ◽  
Localization Problem ◽  
Advantages And Disadvantages ◽  
Localization Algorithms ◽  
Underwater Localization ◽  
The Development Trend

Localization problem has great significance in the applications of underwater sensor networks (UWSN), such as real-time monitoring, target tracking and navigation. This paper analized a series of challenges in underwater localization problem, introduced exsiting localization algorithms and discussed their advantages and disadvantages, and then the development trend of localization problem is discussed. Finally, we give some suggestions in the design of localization algoprithms.

Analysis on De-Icing Methods for 4-Bundle 500kV Transmission Lines

2013 ◽  
Vol 694-697 ◽  
pp. 790-794
Author(s):  
Shun Xin Liu ◽  
You Han Guo
Keyword(s):  
Transmission Line ◽  
South China ◽  
Transmission Lines ◽  
Research Direction ◽  
Development Trend ◽  
Ice Melting ◽  
Power Networks ◽  
Advantages And Disadvantages ◽  
Prevention And Treatment ◽  
The Development Trend

In view of the massive transmission lines suffered disaster of ice coating at the beginning of 2008 in south China. In this paper, several typical schemes for the prevention and treatment of ice coating occurred in power networks home and abroad are analyzed. Common melting ice methods can be divided into three kinds: thermal ice-melting, mechanical de-icing and new de-icing. This paper describes a 500 kV transmission line and analyses each of these measures briefly. At the same time, the advantages and disadvantages of various measures and their applications were summarized. At last, the development trend and the research direction were pointed out．

A Brief Analysis of Coal Desulfurization before Combustion

2012 ◽  
Vol 512-515 ◽  
pp. 2477-2481 ◽  
Author(s):  
Guang Wen Cui ◽  
Ming Yang Sun ◽  
Yan Jun Li ◽  
Qi Kai Guo
Keyword(s):  
Coal Combustion ◽  
Development Trend ◽  
Advantages And Disadvantages ◽  
Coal Desulfurization ◽  
The Development Trend

The paper mainly introduces the desulfurization technology before coal combustion and gives a brief analysis of principles , advantages and disadvantages of the three current coal desulfurization technologies: physical desulfurization, chemical desulfurization and biological desulfurization . Finally, this paper puts forward some views on the development trend of coal desulfurization technology.

The Research Progress of Intra-Row Mechanical Weeding Technology of Dry-Land

2015 ◽  
Vol 729 ◽  
pp. 187-191 ◽  
Author(s):  
Hong Chang Wang ◽  
Jin Tong
Keyword(s):  
Hot Spot ◽  
Development Trend ◽  
Developed Countries ◽  
Good Alternative ◽  
Advanced Technology ◽  
Research Progress ◽  
Technology Research ◽  
Dry Land ◽  
Research Institutes ◽  
The Development Trend

The farmland weeds directly affect the crops yields, and the intra-row weeds are more difficult to eliminate than inter-row weeds. With the harm of chemical weeding technology cognition by people, the growth of awareness of environmental protection consciousness and food safety, the non-chemical weeding technology get more and more attention. Mechanical weeding as a good alternative method get more attention, and the intra-row intelligent mechanical weeding technology becomes a hot spot of research. The research on intra-row intelligent mechanical weeding technology of China have a large gap compared with developed countries. In this work, the current research of intra-row mechanical weeding technology of developed countries and China was reviewed, and the development trend of intra-row intelligent mechanical weeding technology of China were prospected. The universities and research institutes should be encouraged to learn from foreign advanced technology and the design concept of intelligent weeding equipment, increase the investment in intelligent mechanical weeding technology research and promotion.

Review of Mechanical Structure of Force Actuator for Optical Astronomical Telescope

2013 ◽  
Vol 765-767 ◽  
pp. 25-28
Author(s):  
Yu Fang Zhang
Keyword(s):  
Development Trend ◽  
Mechanical Structure ◽  
Advantages And Disadvantages ◽  
Performance Requirements ◽  
Working Principle ◽  
Application Requirements ◽  
The Development Trend

Reviewed the application of force actuators in the optical astronomical telescopes, and introduced the working principle, mechanical structure, performance requirements and basic components of the force actuators; then compared the advantages and disadvantages of force actuator types which commonly used in astronomical telescopes, finally, propose a outlook of the development trend of the actuator on the great telescope application requirements.

scholarly journals Civil Aircraft Spare Parts Prediction and Configuration Management Techniques: Review and Prospect

2021 ◽  
Vol 13 (6) ◽  
pp. 168781402110261
Author(s):  
Yun-Wen Feng ◽  
Jun-Yu Chen ◽  
Cheng Lu ◽  
Shun-Peng Zhu
Keyword(s):  
Development Trend ◽  
Spare Parts ◽  
Demand Characteristics ◽  
Comprehensive Management ◽  
Advantages And Disadvantages ◽  
Spare Parts Management ◽  
Civil Aircraft ◽  
Prediction Techniques ◽  
Integrated Logistics ◽  
The Development Trend

Spare parts are treated as the basis to guarantee the safe and economic operation of civil aircraft, its scientific prediction and reasonable configuration play an important role in perfecting integrated logistics support (ILS) and achieving win-win situation of stakeholders (e.g. manufacturers, operators, maintenance providers). This paper studies the existing spare parts prediction and configuration methods of civil aircraft, and discusses future development trend of spare parts from the perspective of prediction and configuration, respectively. The current development status of civil aircraft spare parts prediction techniques are firstly introduced, according to demand characteristics of spare parts; the present research status of civil aircraft spare parts configuration methods are then elaborated, based on the traditional methods and machine learning methods; the development trend of civil aircraft spare parts prediction and configuration methods is finally analyzed, combined with the advantages and disadvantages of the existing methods of civil aircraft spare parts management methods. The efforts of this work provide a reference for the comprehensive management of civil aircraft spare parts and improve the perfection degree for the ILS of civil aircraft.

scholarly journals Management of Online Microloans

2019 ◽  
Vol 2018 (4) ◽  
pp. 95-100
Author(s):  
Никита Мягких ◽  
Nikita Myagkikh
Keyword(s):  
Credit Market ◽  
Development Trend ◽  
Effective Management ◽  
Advantages And Disadvantages ◽  
The Development Trend

The article deals with the problem of effective management of online microlenders on Russian credit market. Ineffective management may lead to bad consequences. The research objective was to develop recommendations for improving online-microcredit’s management. The authors determined the specifics of online microloans, defined the phases of online microloan process, and described the advantages and disadvantages for the microlending market and separate microlenders. The paper gives actual information about online microlenders, describes the development trend, and gives some recommendations that can be useful for microlenders that provide online-microloans.

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