Development Status Of Technology Research Articles

Overview of the application of active noise control technology in the indoor acoustic environment

Passive noise reduction technology is not enough to improve the acoustic comfort of the indoor acoustic environment. This paper discusses the application prospects of active noise control technology in the indoor acoustic environment, studies the principle and development status of active noise control technology, describes the determinants of the effect about the active noise control and the application prospects in the indoor acoustic environment, and points out the current problems to be solved in the research and future research directions.

Development status and application prospect of semi-active vibration reduction technology for down-hole drilling tools

Domestic and foreign oil companies have been constantly increasing the research and development investment in underground shock absorber, to reduce the vibration and shock of drilling tool under hard rock drilling environments, enhance the rate of penetration and decrease drilling cost under the premise of ensuring the normal life of drill string components and stable bit weight. Based on this, this paper has focused on the working principal of magneto-rheological fluid (MRF) semi-active damper, the composition of MRF and its internal parameters’ impact on the damping characteristics, combining with the status quo at home and abroad of down-hole vibration technology. Meanwhile, the test analysis of semi-active damping technology was conducted. And the results showed that semi-active vibration technology had greatly weakened the vibration level while improved the rate of penetration, guaranteed the service life of bit and other drill-string components, reduced additional tripping times and effectively solved the problems of bit weight instability and low penetration rate etc., caused by drill vibration. Therefore, in the current situation of worldwide oil price downturn, it has become increasingly prominent to reduce cost and increase efficiency, and it’s particularly necessary to research on the shock absorbers of down-hole drilling tools in China.

Research advances in non-destructive detection methods of seed vigor

Seeds are the most fundamental means of agriculture production, and their vitality will directly affect the production and development of agriculture. The detection methods of seed vigor are mainly divided into two categories:non-destructive testing and lossy testing. With advantages of no damage to seed samples, high detection efficiency, online detection, good repeatability and less experimentation pollution, non-destructive seed vigor testing methods include near-infrared spectroscopy, hyperspectral detection, electronic nose detection, and machine vision detection. Based on the development status of non-destructive testing technology for seed vigor at home and abroad, this paper comprehensively reviews methods, techniques and detection results of non-destructive testing of seed vigor, and summarizes the characteristics, application status, research progress, advantages and disadvantages in practical application, summarizes the current methods of non-destructive testing of seed vigor at home and abroad, and forecasts the development trend.

Summary of Key Performance and Testing Methods for Thermal Storage Materials

The development and application status of the key performance testing technology of heat storage materials in the application process are reviewed. According to the practical application requirements in terms of heat storage capacity, heat exchange capacity, material strength, service life, etc., the key performances of thermal storage materials that need to be focused on are sorted out, and the relevant testing techniques for each performance are sorted out and summarized. The specific test methods applicable to high-temperature heat storage materials are analyzed, and the related test technologies and evaluation methods for future heat storage materials are prospected.

A new design of generator set controller in cloud service system based IoT technology

To solve the existing technical problems in quality management, distributed control, maintenance and monitoring management faced by traditional diesel generator set(GenSet), this paper summarizes the development status of traditional diesel generator set technology, and analyzes the business requirements of end users for distributed cloud control. Through the integration of traditional diesel generator cloud technology with internet of things technologies(IOT), a new design scheme of cloud GenSet controller is proposed based IoT technology, which simplifies the logic hierarchy of diesel generator cloud control. Then this paper puts forward the key network hardware design, and applies the new cloud GenSet controller to the enterprise new GenSet system, which verifies the feasibility and stability of the new design.

Development Status of Digital Detection Technology for Unfavorable Geological Structures in Deep Tunnels

The geological conditions of long tunnels are complex and changeable. Potential structural planes or unfavorable geological structures are random and unpredictable. Sudden geological disasters can easily cause delays in construction periods, economic losses, and even serious casualties. Tunnel monitoring measurement and advanced geological forecast research have always been two major guarantees for safe tunnel construction. However, the current research lacks a clear explanation of the classification of rock mass structural surfaces and the hazard-causing mechanism. Many recent instabilities of surrounding rock structures and The block loss accident has made it a hot issue for research. First, combining the past work of the team, the structural surfaces in the rock mass are mainly divided into two types: exposed and hidden structural surfaces, and different detection methods are summarized for their different occurrence states. Among them, digital compass contact measurement, near Range photogrammetry and laser scanning have become the three major means to support the development of the geological survey of the tunnel structural surface. Secondly, it systematically summarizes the comprehensive detection methods of bad geological structures in the rock mass structure, and introduces the specific application of geophysical technology in tunnel engineering. Finally, the development trends of the above two rock mass structure detection technologies are discussed. Based on the two parts of rock mass structural surface and unfavorable geological structure, it systematically expounds the development status of the existing typical disaster-causing structure detection technology, which can provide important references for researchers in this field, especially field engineers.

Review of Construction Technology of Typical Immersed Tube Engineering

This paper introduces the development status of sea-cross passage, the classification and construction technology of immersed tunnel. Taking the Femern tunnel as an example, its construction process is analysed in detail and it is compared with the HK-Zhuhai-Macao Bridge. The results show that the construction technology and engineering equipment of immersed tunnel in China have reached the world leading level.

Discussion and Study of Technical Route of Smart Power Plant of Thermal Power

Digital smart power plant is an important development direction of thermal power technology. Smart thermal power plant technical route and development direction is presented considering characteristics of production and management of thermal power enterprises. The smart thermal power plant’s system framework is discussed. The key technical field of smart thermal power plant is studied. An open-ended smart thermal power plant technical system including 5 technical platforms of smart data, smart safety, smart producing, smart operation, smart integrated management, is summarized. Meanwhile, the development status of key technologies of diverse systems and functions is discussed, the future development direction of key technologies is presented constructively, and three principled suggestions on the construction of smart power plant are presented finally.

Advances of magnetic surgery in the field of urology, obstetrics, and gynecology

Currently, magnetic devices have been widely used in the fields of production and daily living, including surgical practice. By generating attractive or repulsive force without direct contact, magnetic materials have shown high superiority in simplifying the process of diagnosis and treatment, developing novel medical instruments, reducing postoperative complications, and overcoming drawbacks of traditional operations. Especially in the diagnosis and treatment of gastrointestinal and hepatobiliary surgery, the clinical application of magnetic surgery has developed rapidly and is becoming increasingly mature. With the wide use of magnets in clinical practice, the discipline of magnetic surgery has been developed in recent years. After further innovation and continuous development, a magnetic system for clinical application is produced and contains five parts: Magnetic compression technique, magnetic anchor technique, magnetic navigation technique, magnetic levitation technique, and magnetic tracer technique. In the field of urology, obstetrics, and gynecology, researchers have constantly absorbed and integrated the advantages of magnetic compression technique, magnetic anchor technique, and magnetic navigation technique to explore more minimally invasive, more accurate, simpler, and safer operations. Magnetic devices have been used in clinical practice effectively to develop new diagnosis and treatment methods. However, the application range of magnetic technology in urology, obstetrics, and gynecology is limited; fundamental and clinical research is scattered; and the development process is slow. There is still no breakthrough in magnetic levitation and magnetic tracer technique. Therefore, combined with the current content of magnetic surgery, this article briefly describes the development status of magnetic surgery technology and summarizes fundamental research or clinical examples of magnetic technique application in urology, obstetrics, and gynecology. It consists of three parts: Introduction of the content of magnetic surgery system, demonstration of application in urology, obstetrics, and gynecology, and discussion on future prospects. In general, the use of magnetic technology in the field of urology starts relatively early, but the development is slow; the interaction between magnetic technology and obstetrics and gynecology starts late, but the depth and breadth are rapidly expanding. Magnetic technology makes diagnosis and treatment more minimally invasive, more efficient, and safer. Although magnetic levitation and magnetic tracer techniques are rarely used in the field of urology, obstetrics, and gynecology, it is believed that with the advancement of biomaterial science combined with modern surgery, especially the combination of medicine and engineering, magnetic surgery will have a broader effect. Rapid development of magnetic surgery will be achieved, and its richer application will be beneficial to human health. This paper is aimed at introducing advances of magnetic surgery in the field of urology, obstetrics, and gynecology in recent years, providing references and directions for clinical innovation in future research. At the same time, summarizing the current research advances of the discipline is beneficial for further interdisciplinary integration and the mutual promotion between the magnetic surgery system and the field of urology, obstetrics, and gynecology.

Technical status and development direction of workover operation of PetroChina

Through a comprehensive review of the development status of workover technology of PetroChina Company Limited (PetroChina), this paper presents the connotation of workover operation under the background of the new era, the latest progress of workover operation in the respects of equipment, tools, technology and the construction of information and standardization. The gaps between PetroChina and foreign counterpart in workover technology are as follows: the level of automation and intellectualization of tools and equipment is relatively low, the snubbing operation in gas wells characterized by HT/HP and high H2S is lagged behind; water plugging in the long horizontal wellbore needs to be further developed, coiled tubing and its relevant equipment for ultra-deep well operation has to be optimized; informationization, standardization and big data application of workover operation need to be started. Based on this as well as the development status of workover technology in China and the technical difficulties faced in the future, eight suggestions for future development are put forward: (1) strengthen the dynamic understanding of reservoir and improve the pertinence of workover schemes; (2) develop the general overhaul technology in a systematical way to tackle issues of seriously problematic wells; (3) put more efforts into the research of horizontal well workover operation and develop relevant technology for long horizontal section operation; (4) improve the snubbing technology and extend its applications; (5) expand the capacity of coiled tubing operation and improve the level of special operations; (6) develop automatic workover technology into the field of artificial intelligence; (7) promote clean operation in an all-round way and build green oil and gas fields; (8) perfect the informationization construction to realize the sharing of workover resources.

Analysis and suggestions of current planning frameworks and the status of research on genetic technologies in China

This article briefly introduces the strategic framework of genetic technology of Chinese government and Chinese Academy of Sciences, and the remarkable progress of genetic technology under this guidance. Using bibliometric and patent analysis methods, we reveal the current status of genetic technology research and development in China. China has made great achievements, both in terms of quantity and quality of academic publications, and quantity of patent applications. However, there are still something need to be improved, such as international cooperation and combination the efforts of enterprises, universities and research institutes. In the future, China will improve top-level planning and government guidance and supervision. In addition, it is also crucial to encourage investment from enterprise and communities, and to broadcast the science and technology to the whole society. Moreover, actions have to be taken to reduce the risks of bio-safety and bio-security. The innovation and breakthrough of genetic technology is a key to sustainable development in the bio-industry and bio-economy in China.

Development Status and Prospects of Digital Creative Technology in China

As one of the strategic emerging industries identified in the 13th Five-Year Plan of China, digital creative industry lives in the digital and networked era; it focuses on culture, content, and copyright, and drives the development of surrounding industries through integration and penetration. The key to developing the digital creative industry is digital creative technology and creative design, where, however, China has weaknesses and does not have a clear development path. In this paper, by analyzing industry data, we systematically describe the current development status of digital creative technology in China, including enabling technology, application technology, and end-user device technology, and summarize the problems and weaknesses of China in ultra-high definition (UHD) video, 3D audio, virtual/augmented reality, and software for digital content generation and creative design. Our investigation suggests that it will promote the development of China’s digital creative technology by: (1) establishing national science and technology key projects and national engineering research centers on digital creative technology, (2) improving the quality of talents on digital creative technology, and (3) actively participating international cooperation and increasing the influence of Chinese culture.

“Four integrations” to solve the technical bottleneck of long-life asphalt pavement

Over the past 40 years of reform and opening, the highway construction in China has grown from scratch, and highway construction capabilities have reached the world’s advanced level. By 2020, China has built the world’s longest national expressway network, which strongly supports the rapid economic development. However, the asphalt pavements of highways in China are still facing many problems such as short service life, high consumption of social and natural resources, and high operation and maintenance costs, and it is difficult to meet the requirements of full life cycle technical and economic optimization. The sustainable development of expressway asphalt pavement urgently needs the support of long-life asphalt pavement technology. To scientifically construct the technical standards and system for long-life asphalt pavements in China, the urgent need for long-life asphalt pavement in the sustainable development of expressways and its practice and development status in China must be understood, and the basic science and key technical issues must be gained insight into to prescribe the right medicine. The major demand issues for long-life asphalt pavements in China’s expressways, including how pavement structures and materials respond to increasingly severe heavy-load traffic and complex natural environments, the contradiction between huge resource consumption caused by periodic reconstruction and energy saving and environmental protection, and the imbalance of construction, management and maintenance were pointed out in this paper. Facing the significant demands for long-life asphalt pavement in the sustainable development of expressways in China, with the aid of the practice and development status of long-life asphalt pavement technology in our country, the relevant experiences and lessons of developed countries must be learnt and drew. Through the research and engineering practice of a large number of long-life asphalt pavements in China, four key technical issues that need to be solved urgently for long-life asphalt pavements were extracted, namely, the damage control mechanism of long-life asphalt pavement structure and materials, design theories and methods, and service performance monitoring technology and construction quality control, etc. In order to solve the four key problems, the overall strategy and specific ideas for constructing a long-life asphalt pavement technical system are proposed, which are the integration of roadbed and pavement, structure and material, design and construction, and construction and maintenance. Through the realization of comprehensive technical system and standards of the “four integrations” for long-life asphalt pavement, a new generation of long-life asphalt pavement structure technical standards and technical systems suitable for my country’s characteristics are scientifically constructed to break the technical bottleneck of asphalt pavement of highways in China under heavy traffic and complex natural environmental conditions, promoting the transformation of traditional asphalt roads to a new generation of green durable roads.

Development status and Prospect of directional hydraulic fracturing technology for coal mine roof

Aiming at the harm and control methods of thick and hard roof in coal mine, the paper firstly analyzes the advanced control methods of thick and hard roof, such as directional shaped charge blasting roof control technology, hydraulic fracturing roof control technology, abrasive water jet directional cutting roof technology, large-scale special roof cutting machine, etc Control hole fracturing, transverse slotting fracturing and longitudinal slotting fracturing are compared and analyzed; finally, the shortcomings of current research are analyzed. According to the current research results, the analysis shows that: the method of controlling roof by blasting in the future will be limited, while the method of hydraulic fracturing, especially directional hydraulic fracturing, has obvious advantages; the longitudinal slotting fracturing has the best control over fractures in the directional hydraulic fracturing technology; the guiding mechanism and fracture extension mechanism of longitudinal slotting hydraulic fracturing in thick and hard roof need to be further studied; lack of field application research and corresponding equipment development, lack of field effect evaluation method after longitudinal slotting fracturing.

Development Trend of Laser Technology Application in the Information Field Toward 2035

Laser technology has been widely used in the field of information since it was invented and has promoted the rapid development of information technology, which has become the main driving force for the development of information technology. “Strategic Research on China’s Laser Technology and Its Application in Information by 2035” is a key sub-project of the major consulting project “Strategic Research on China’s Laser Technology and Its Application by 2035” launched by the Chinese Academy of Engineering. It aims to conduct a comprehensive research on the application of laser technology in the information field and on the development of related industries in China; analyze the development trend of laser technology in the information field; and propose suggestions to promote the development of the field. This paper introduces the major application of several laser technologies—optical communication, laser display, optical storage, and optical sensing—in the information field, and analyzes the research and development status of laser technology, the major key technologies, and the development of related industries in China and abroad. To promote the laser technology application in the information field, we suggest that China should establish key research directions and promote the development of core technologies; build an industrial innovation platform to improve technological innovation; lay emphasis on intellectual property protection and strengthen the training of high-end talents; guide the cooperation of government, industry, education, and research to promote achievement transformation; increase policy support and guide the healthy development of the industry; exploit the advantages of industrial agglomeration to enhance the competitiveness of enterprises.

皮秒激光技术的发展现状及未来趋势

皮秒激光技术的发展现状及未来趋势

Research Progress of Antibiotic Pollution and Treatment Technologies in China

In recent years, antibiotic pollution has become increasingly serious in China, and many kinds of antibiotics have been detected in river basins, soil and drinking water. How to control antibiotic pollution has become a social concern in the process of building ecological civilization. This paper introduces the current situation, sources and harms of antibiotic pollution and analyzes the current development status of antibiotic pollution treatment technologies in China, such as traditional treatment technology, new constructed wetland technology and phytoremediation technology, etc. Some suggestions on antibiotic pollution control were given from the aspects of relevant laws and regulations, the use of antibiotic treatment technology according to local conditions and the combination of multiple processes.

Analysis of EBD Based on Active Safety Technology of Automobile

Recalling the development of automobile safety technology, the development status of active safety technology for automobiles is described.The typical active safety technology of modern automobiles- EBD and other characteristics are analyzed and evaluated.The development trend of automobile safety technology in the future is briefly introduced.

Strategy for Securing Key Patents in the Field of Biomaterials

The quality of life is gradually improving with the development of medicine and the rising standard of living, but human beings are still faced with the risks of various diseases, accidents, aging, and industrial disasters. Accordingly, the importance of biocompatible materials for treating and recovering human tissues or functions is increasing. Furthermore, materials with various biological functions that interact with surrounding tissues and cells are being researched and developed, instead of materials that simply replace damaged tissues. This study analyzes the research and development trends of biocompatible materials and examines the latest status of technological developments. Biocompatible materials generally include metals, ceramics, polymers, gels, and composite materials. Polymer materials began to be widely used as biocompatible materials from the mid-20th century. Recently, polymer-extracellular matrix (ECM) composite technology using ECMs, which exist naturally in the human body, is drawing considerable attention. Thus, the ultimate objective of this study is to establish strategies to secure key patents in the field of polymer materials among various biocompatible materials. To this end, quantitative and qualitative analyses are conducted based on patents published in South Korea, the U.S., Japan, and Europe by country, keyword, applicant, and inventor. Based on the results of these analyses, this study examines recent patent application trends, and establishes directions for technology development and strategies for developing key technologies in this field. Consequently, four major strategies are established: technology development, purchasing patents, setting cross-licenses, and bypass technology development. Subsequently, concrete patent acquisition plans in line with each direction are conceived. In addition, four industries related to biocompatible materials (over-the-counter drugs, prescription drugs, medical materials, and cosmetics) are selected, the key patents in each industry are examined, and patent acquisition scenarios are suggested.

Modern Education Technology Changed Traditional Adult Teaching Mode

With the deepening of modern educational technology in the application of education and teaching, the traditional education and teaching model is transforming into the modern educational technology model, there is a subversive change especially in the traditional adult teaching model. This article first briefly describes the characteristics of traditional adult teaching mode and the development status of modern educational technology. Then through the digital multimedia teaching mode, modern distance learning mode and computer-assisted teaching mode, demonstrates that modern educational technology will inevitably lead to the reform of traditional adult teaching mode, forcing the traditional educational teaching mode to transform into the modern educational technology mode. Finally, the future development trend of modern educational technology has been broken.