Development Status Of Technology Research Articles

EV grid-connected control and economic benefit analysis based on V2G technology

With the large-scale use of EV around the world, it has become a popular research direction to integrate EV into the power grid to achieve the purpose of peaking and valley filling for the power grid. With V2G technology as the core, this paper firstly analyzes the V2G grid-connected control technology, namely active power and reactive power control and clustering control at the theoretical level. From the perspective of cooperative game, it elaborates the commercial operation mode of V2G after grid-connected. Finally it puts forward relevant assumptions on the future development trend of V2G based on the current development status of V2G technology.

Overview of Food Preservation and Traceability Technology in the Smart Cold Chain System.

According to estimates by the Food and Agriculture Organization of the United Nations (FAO), about a third of all food produced for human consumption in the world is lost or wasted-approximately 1.3 billion tons. Among this, the amount lost during the storage stage is about 15-20% for vegetables and 10-15% for fruits. It is 5-10% for vegetables and fruits during the distribution stage, resulting in a large amount of resource waste and economic losses. At the same time, the global population affected by hunger has reached 828 million, exceeding one-tenth of the total global population. The improvement of the cold chain system will effectively reduce the amount of waste and loss of food during the storage and transportation stages. Firstly, this paper summarizes the concept and development status of traditional preservation technology; environmental parameter sensor components related to fruit and vegetable spoilage in the intelligent cold chain system; the data transmission and processing technology of the intelligent cold chain system, including wireless network communication technology (WI-FI) and cellular mobile communication; short-range communication technology, and the low-power, wide-area network (LPWAN). The smart cold chain system is regulated and optimized through the Internet of Things, blockchain, and digital twin technology to achieve the sustainable development of smart agriculture. The deep integration of artificial intelligence and traditional preservation technology provides new ideas and solutions for the problem of food waste in the world. However, the lack of general standards and the high cost of the intelligent cold chain system are obstacles to the development of the intelligent cold chain system. Governments and researchers at all levels should strive to highly integrate cold chain systems with artificial intelligence technology, establish relevant regulations and standards for cold chain technology, and actively promote development toward intelligence, standardization, and technology.

Review of research progress on key disposal techniques of pile foundation in karst area

It is necessary to study the key disposal technology of pile foundation in karst area during the development of pile foundation. In this paper, the development status of the key disposal technology of pile foundation was compared and analyzed from two aspects: the research progress of the comparison and selection of pile foundation design and construction scheme, the problems encountered in the construction of pile foundation in karst area and the research progress of treatment methods. The shortcomings and problems in the research of key disposal technology of pile foundation in karst area were studied, and the following conclusions were drawn: It is the priority among priorities to formulate scientific and quantitative reference basis for pile foundation construction scheme and convert engineering geology into data information. It is an important way to solve the problem of pile foundation construction in karst cave area to develop new piles and increase their adaptability to geological conditions. In the construction of pile foundation in karst area, the probability of accidents should be reduced as much as possible and the possible accidents should be stopped at the prevention stage. The research results provide technical support and scientific guidance for the calculation of bearing capacity of pile foundation and the key disposal technology in karst area.

Analysis of Path Planning Algorithms for Service Robots Applied in Indoor Environments

Path planning technology is one of the key issues in solving mobile robot navigation technology. On the basis of traditional path planning algorithms, a large number of algorithms have been improved and applied to achieve better results, like fireworks algorithm, ant colony algorithm, A* algorithm, particle swarm algorithm, genetic algorithm, firefly algorithm, and artificial potential field method. The optimization and improvement of algorithms have made today's path planning technology more comprehensive and effectively improved the accuracy and efficiency of indoor service robot path planning. This article analyzes the development status of path planning technology for indoor environment service robot. Firstly, typical application scenarios are listed and the significance of path planning algorithms in them is introduced in combination with their application requirements. Then, some classic indoor scene path planning algorithms and improvement strategies are compared and analyzed. Finally, a summary and discussion of the above indoor environment intelligent robot path planning methods are presented.

Analysis of feature point matching technology in SLAM based on binocular vision

With rapidly developing computing technology, intelligent robots have been used extensively in many areas of life, improving work efficiency and lowering labor costs. At the same time, with the increasing number of robot application scenarios, the demand for robot intelligence has also increased. Computer vision-based simultaneous localization and mapping (SLAM) technology is a key technology that helps robots achieve real-time positioning and navigation in order to improve their intelligence. Feature point matching is an important component of this technology. This paper mainly analyzes the current development status of feature point matching technology in visual SLAM. Firstly, a brief introduction was given to the three widely used SLAMs, and the advantages and disadvantages of different SLAM technologies were analyzed. Second, a brief presentation and explanation of the working principle of binocular SLAM technology were provided. Then, the basic principles and key points of feature point recognition and matching techniques in several different algorithms for visual SLAM were summarized. Analyzed the advantages and disadvantages of various algorithms, as well as improvements based on this algorithm. Finally, summarize and provide suggestions for the future development of visual SLAM technology.

Survey on Multiple Methods for Task Offloading in Mobile Cloud-Edge Environment

Mobile edge computing (MEC) is an emerging technology that extends cloud computing to the edge of the network. It offloads computing intensive tasks to the edge server to solve the problem of insufficient computing power and resource of the terminal device, meets the low energy consumption and low latency requirements of the mobile user for application task computing, and greatly releases the pressure of the cloud center. Cloud-edge integration architecture has become a trend. How to perform optimal offload scheduling for terminal tasks has always been one of the key issue in the field of MEC research. This paper reviews the research directions and achievements of task offloading technology in today’s cloud-edge environment. First, the development status of MEC environment and task offloading technology are introduced, and the concepts and applications of classic schemes such as heuristic algorithm, metaheuristic algorithm, and reinforcement learning are elaborated. Based on the mainstream solutions in the research literature, two types of task offloading solutions are summarized: traditional task offloading solutions based on algorithm optimization and interactive task offloading solutions based on reinforcement learning. Second, the research literature on the two mainstream directions mentioned above is summarized and organized from aspects such as problem constraints, optimization objectives, and contributions made. Meanwhile, schemes are compared through the classic algorithms and innovations they used. Finally, the current challenges and future research objectives in this field are summarized to provide reference and help for the follow-up research.

Research on Problems and Countermeasures of the Application of Wireless Sensor Network Technology

With the comprehensive development of science and technology, wireless sensor networks have penetrated into our lives, and make our lives more convenient. Wireless sensor network has been widely used in all aspects of our society. As a new type of information acquisition and processing technology, it can create a more efficient and convenient living or working environment for people. It has an impact on people's lives all the time, making people improve in all aspects, thus making us enter a more efficient era. However, while wireless sensor network technology brings convenience to people, it also exposes many problems. Based on this, this paper analyzes the application and development status of wireless sensor network technology in detail, in order to find out the existing problems and propose corresponding countermeasures, so as to build a better wireless sensor network.

Understanding Fuel Saving and Clean Fuel Strategies Towards Green Maritime

Abstract Due to recent emission-associated regulations imposed on marine fuel, ship owners have been forced to seek alternate fuels, in order to meet the new limits. The aim of achieving low-carbon shipping by the year 2050, has meant that alternative marine fuels, as well as various technological and operational initiatives, need to be taken into account. This article evaluates and examines recent clean fuels and novel clean technologies for vessels. The alternative fuels are classified as low-carbon fuels, carbon-free fuels, and carbon neutral fuels, based on their properties. Fuel properties, the status of technological development, and existing challenges are also summarised in this paper. Furthermore, researchers have also investigated energy-saving devices and discovered that zero-carbon and virtually zero-carbon clean fuels, together with clean production, might play an important part in shipping, despite the commercial impracticability of existing costs and infrastructure. More interestingly, the transition to marine fuel is known to be a lengthy process; thus, early consensus-building, as well as action-adoption, in the maritime community is critical for meeting the expectations and aims of sustainable marine transportation.

Research on the integration and application of digital technology in the exhibition design of university history museum

University history museum is a comprehensive place integrating collection, research, exhibition, publicity and education, and it is an important part of campus culture construction. As a place for the precipitation and sublimation of university history and culture, the exhibition space design of university history museum has been paid more and more attention. The development of digital technology in China today provides a good opportunity for inheriting the history and culture of colleges and universities. By using the research methods of literature review and chart research, combined with the development status of digital technology in China, this paper expounds the design principles and concepts of the exhibition space of university history museum, and summarizes the methods and strategies of the integration and application of digital technology in the exhibition design of university history museum.

Research on big data privacy protection technology

The extensive application of big data technology makes data burst with unprecedented value and vitality. However, due to the large amount of data, many data sources, and complex data access relationships, the current development of privacy protection technology is seriously lagging behind the development of big data technology, which restricts the application and promotion of big data. At present, it is urgent to sort out the development status of big data privacy protection technology, so as to provide a reference for the research and breakthrough of key issues of big data privacy protection. This paper analyzes k-anonymity and differential privacy protection, and points out that a protection method that can reduce the cost of high-dimensional data processing and ignore the background knowledge requirements of attackers is urgently needed for privacy protection in big data scenarios. At the same time, this paper also puts forward suggestions for the application and future development of these technologies.

Smart technological options in collection and transportation of municipal solid waste in urban areas: A mini review.

The rapid increase in quantities and the mismanagement of municipal solid waste (MSW) in developing countries are increasing the environmental impacts such as air, water and soil contamination. The present scenario of MSW management deals with numerous issues such as lack of technological resources, strategical management, social awareness, public participation, etc. Globally, numerous efforts in the form of new policies, schemes and regulatory acts have been made to develop a systematic collection and transportation (C&T) method using advanced, integrated technologies. However, very few studies have addressed this issue for low- and middle-income countries due to the lack of availability of reliable resources and data sets. This paper addresses the present challenges in C&T methods and highlights the application of information communication technology in monitoring, capturing, data management, planning, live tracking and communication. This systematic mini-review is based on the availability of technical resources, consumer acceptance and cost-effectiveness of different technologies in managing the processes. The study revealed that the C&T methods in most developed countries are designed based on their geographical stretch, climatic factors, waste characteristics and compatible technology, resulting in sustainable MSW management. However, developing countries have followed the same monotonous approach in managing their MSW, which fails in C&T process. The case study provides a valuable resource for researchers and policymakers to frame a better C&T process based on the recent technological interventions, infrastructure development, and social and economic status.

(Invited) Current Status of SOFC Deployment and Technology Developments in Korea

The current deployment of stationary fuel cells in Korea is about 880 MW including the 220 MW SOFC systems, About 40 MW in 2021 and 50 MW in 2022 were installed respectively. In Korea, the fuel cell deployment is accelerated by the mandatory supply and the promotion regulations driven by government. Several Korean companies have developed the SOFC and SOEC technologies under the national program, and major projects are the development of a 200 kW SOFC and a 20 kW SOEC systems. The 2~8kW class SOFC products have been developed already and are in deployment. The Korean government enacted the Hydrogen Law in 2020, and under this law, development and deployment of hydrogen and fuel cell-related technologies are in progress. The achievements of the SOFC R&D and deployment, and national hydrogen roadmap in Korea are introduced in more detail.

Benchmarking plasma and electrolysis decomposition technologies for ammonia to power generation

Ammonia is a promising energy and hydrogen carrier due to its ease of liquification, high hydrogen content, and potential to be synthesized without carbon feedstocks. Despite its widespread use in agriculture, the utilization of ammonia to deliver hydrogen or for direct power generation is still under development. Sometimes referred to as “cracking”, the standard approach for recovering hydrogen from ammonia relies on harsh reaction conditions that limit its suitability for low-carbon transitions. This work investigates the technology development status and potential cost of plasma and electrolysis-based ammonia decomposition, benchmarks them with thermal-chemical decomposition, and further compares them with direct ammonia-to-power solid oxide fuel cell systems. Results suggest that in order to reach cost parity with cracking technologies, plasma-based decomposition must achieve one order of magnitude improvement in energy efficiency (to 10 kWh/kg or lower), while electrolysis decomposition must achieve enhanced durability using cheap electrolytes.

Moon-Earth: Prospects for a lunar-centric scenario for space development after 2030

Gerard K. O’Neill idea of large habitats built from outer space resources in his 1974 Physics Today article “The Colonization of Space” resulted in a flurry of speculation and research and development work aimed at use of lunar resources to build large-scale solar-power satellite (SPS) to generate revenue to pay for space colonization. As the enormity of the technical and financial challenges to achieve space colonization research interest began to wane particularly with realization that the U.S. having reached the Moon before the USSR, was no longer driven to achieve more as the Nation faced the Oil Embargo and growing domestic concerns. Currently, the state of technology development and knowledge of lunar resources has created conditions where a lunar centric model of space development appears increasingly feasible offering the possibility of not only more rapid development in outer space, but also to impact long term sustainable development on Earth by reducing the need for terrestrial resources for industrial development in Earth orbits, cislunar space and the Moon. In effect, lunar industrial development can contribute increasingly to achieve sustainable development on Earth. This, however will raise challenges to address governance of space traffic and resource access and use on the Moon as unlike 1974 many countries are developing the capacity to reach and operate in cislunar space and on the Moon.

Survey on the Construction Status of Forensic Virtual Autopsy Laboratory and the Applicability of Laboratory Accreditation.

To survey the development status and actual needs of virtual autopsy technology in China and to clarify the applicability of forensic virtual autopsy laboratory accreditation. The questionnaire was set up included three aspects：(1) the current status of virtual autopsy technology development; (2) the accreditation elements such as personnel, equipment, entrustment and acceptance, methods, environmental facilities; (3) the needs and suggestions of practicing institutions. A total of 130 forensic pathology institutions were surveyed by online participation through the Questionnaire Star platform. Among the 130 institutions, 43.08% were familiar with the characteristics of virtual autopsy technology, 35.38% conducted or received training in virtual autopsy, and 70.77% have establishment needs (including maintenance). Relevant elements were suitable for laboratory accreditation. Virtual autopsy identification has gained social recognition. There is a demand for accreditation of forensic virtual autopsy laboratory. After the preliminary assessment, considering the characteristics and current situation of this technology, China National Accreditation Service for Conformity Assessment (CNAS) can first carry out the accreditation pilot of virtual autopsy project at large comprehensive forensic institutions with higher identification capability, and then CNAS can popularize the accreditation in a wide range when the conditions are suitable.

Application and Prospect of Soil Microorganisms in Agro-ecological Environment

Sustainable agriculture has also received increasing attention in recent years. In the pollution of the agro-ecological environment, pollution sources such as oil, pesticides and heavy metals are seriously affecting the soil. These pollution will not only reduce food production and poor crop growth, but also greatly affect the soil environment, which will cause major losses to agriculture in the long run. Among the many methods for soil environment remediation, microbial remediation is the most promising bioremediation technology with development and application potential. In this paper, the application types, influencing factors and mechanisms of microorganisms in the restoration of petroleum, heavy metal and pesticide pollution, as well as the development status of microbial remediation technology and its application prospect in agricultural ecological environment are reviewed.

Research on the application of immersive art in digital technology scene

In the context of the continuous growth of data information, the arrival of the digital age has not only changed People's Daily life, but also had a profound impact on the development of the art field. There is a complex and changeable integration relationship between science and technology and art and culture. Technology aestheticization and art technicalization have become one of the most important features of the development of the new era. The most representative one is the development of immersive art technology, which, as the key of mood art emerging in the current market, has developed rapidly with the help of the theory of digital technology. On the basis of understanding the development status of digital technology and immersive art, this paper deeply discusses the application advantages of immersive art in the construction and development of modern society according to the common technological means of immersive art in the current market.

Applications of Supercavitation Drag Reduction Technology in Naval Gun Underwater Attack and Defense Warfare

China has lagged behind in the construction of underwater attack and defense system for a long time, and there is still a lack of effective means for rapid anti submarine and underwater short-range / terminal defense in large areas. This paper analyzes the characteristics of underwater combat targets and equipment, and puts forward the combat mode of naval gun underwater attack and defense system based on supercavitation drag reduction technology. This paper expounds the application and development status of supercavitation drag reduction technology in the field of gun weapons, analyzes the key technologies involved in the development of naval gun underwater attack and defense combat, and looks forward to the application prospect of new naval weapons, which can provide technical support for improving the comprehensive combat capability of naval gun.

Demand and Current Situation of 3/8 mm Dual Band Transparent, Bulletproof and Stealth Integrated Radome Technology

Starting from the threats faced by land-based ground platforms and the battlefield environment, this paper discusses the necessity of the development of 3/8 mm dual band transparent, bulletproof and stealth integrated radome technology. By analyzing the domestic and international development status of relevant technologies, the main problems existing in the research of bulletproof radome are summarized. Finally, the difficulties in the development of this technology are analyzed.

Evaluation study on the coordination of marine resources, the environment and social economy: take Taizhou Bay as an example

The sea is an important aspect of development in bay areas. Coordinated development of the marine resource environment and social economy is an inevitable requirement for high-quality development of the marine economy. This paper builds an index to evaluate the coordination of marine resources, environment and social economy in bay areas from four aspects: resource and environmental effects, resource utilization compliance, socio-economic development conditions, and technological investment and development status. The model is implemented for Taizhou Bay. The results show that the overall level of coordination between its marine resource environment and social economy is poor, under 0.4. The main reasons for this situation are the decline in environmental quality of bay resources, and insufficient technological investment and development. In view of the problem of uncoordinated regional development, this paper puts forward two suggestions to provide technical support for the high-quality development of Taizhou Bay: implementation of land and sea resource control, and increased investment in environmental repair technology in the bay.