Subjects: Digital Publishing >> Internet Journals submitted time 2024-02-23
Abstract： [Purposes] To construct evaluation indicators for hot words in journals, and through the hot word ranking service, help users quickly and intuitively understand the cutting-edge fields and directions of journal research. [Methods] Using online literature research method to analyze the features of extracted entries in the current intelligent word segmentation lexicon; Using methods such as parameterization and standardized unique labeling to extract computational parameters associated with hot words, conducting statistical analysis, constructing mathematical models, and conducting multidimensional sorting. [Findings] A journal effective entry extraction model was constructed, and effective entries were screened and standardized. A mathematical model for hot word evaluation indicators was constructed through logical calculation for effective entries with parameter information. An application example of hot word indicator knowledge service was presented in the form of a ranking list. [Conclusions] The standardized unique labeling method can improve the entry recognition ability of the segmentation lexicon, making the segmentation results more professional and reliable; The journal hot word ranking service can help users quickly and intuitively understand the cutting-edge fields and directions of journal research.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-07-04
Abstract： [Purpose/Significance] “Neck Stuck” technology is the key point that restricts the high-quality development of China’s strategic emerging industries at the present stage. To ensure the independent security control of the industrial chain, it is necessary to identify the “Neck Stuck” technology efficiently and accurately. [Method/Process] This study utilizes patent literature as the main data source. Firstly, key core technologies are selected based on technical co-occurrence network measurements. Secondly, the relationship between latecomer advantages and independent innovation capabilities is comprehensively considered from the perspective of technical gaps and technical-economic security. A “Neck Stuck” technology identification index system is designed across four dimensions: technical value advantage, technical competition advantage, technical monopoly status, and independent controllability. Then, a systematic “Neck Stuck” technology identification model is constructed using the CRITIC-TOPSIS method. Finally, empirical research is conducted in the field of numerical control machine tools. [Result/Conclusion] The results of the identification process using the proposed method in this study reveal the existence of 34 potential “Neck Stuck” technologies in the field of numerical control machine tools in China. These technologies are primarily concentrated in the control or adjustment system, key functional components, turning or boring numerical control machine tools, and digital data processing. A comparison of these findings with the U.S. Commerce Control List confirms the high degree of consistency, thus validating the feasibility and reliability of the proposed method.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-11
Abstract： [Purpose/Significance] Strengthening global data governance has become the current international strategic consensus, and data sovereignty has become an important embodiment of national sovereignty in cyberspace. Many countries in the world have actively introduced data governance policies and actively participated in the global data governance competition. Therefore, studying and analyzing data governance policies and practices in developed countries is of great significance to our data governance system and capacity building. [Method/Process] Throughcomparing and analyzing the data governance policies and practices issued by the United States, the European Union and Japan, we sorted out the core content, value orientation and practice pathof data governance policies in the United States, the European Union and Japan, analyzed the global data governance development situation, sorted out the current main problems facing the data governance in our country, and proposed countermeasures and suggestions to strengthen our data governance system and capacity building. [Result/Conclusion] In order to effectively improve the data governance capacity, we should perfect the data governance system and legal systemconstruction, focus on international competition, grasp the power of discourse and rule-making of global data governance competition, actively construct the open and shared data governance cooperation pattern, and constantly improve the operating mechanism of data governance, promote the public data opening and governance technology optimization of our country
Peer Review Status:
Awaiting Review
Subjects: Geosciences >> Geography submitted time 2023-04-07 Cooperative journals: 《干旱区地理》
Abstract： Soil wind erosion is the primary stage and important component of desertification in arid and semiarid regions. Evaluating its possibility and potential risk for wind erosion control at the regional level is of considerable importance. In recent years, remote sensing and geographic information technology are often combined with mathematical methods to build a risk assessment model. However, the current risk models of wind erosion are still lacking in mechanical parameters. This study was conducted in the Hetao Plain of China, which is a typical region of wind erosion and desertification. Soil hardness and shear strength were measured in the field to determine the difference in soil erodibility among different land use types. Wind erosion risk was evaluated using fuzzy logic, analytic hierarchy process, and the weighted linear combination method based on the data of climate conditions, soil physical factors, topography, and vegetation characteristics. Then, the spatial distribution characteristics and causes of different risk areas were analyzed. The following results are presented. (1) The shear strength of land use types shows an increased tendency in the order of sandy land, grassland, woodland, cultivated land, and saline land, which agreed well with the soil hardness. The soil hardness and shear strength of sandy land are 2.05 kg·cm−2 and 10.00 kPa, respectively, which are significantly lower than those of other land use types, indicating that the soil erodibility of sandy land is extremely high. (2) The wind erosion risk varied in spatial distribution. Wind erosion hazard is high in the west and south and low in the eastern and middle regions. Moreover, 27.51% of the total areas are found to be at a high risk of erosion. Thus, soil erodibility and vegetation coverage are essential factors affecting soil wind erosion. (3) The severe risk region is mainly distributed in most of Dengkou County, the edge of the south bank of the Yellow River, Togtoh County, and the east of Wuliangsuhai in the Urad Front Banner. Therefore, this area should be the focus of wind erosion control. The current research demonstrates strong universality and compensates for the shortcomings of existing wind erosion models, which can provide a theoretical basis for regional-scale wind erosion assessment models.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Based on a profound understanding of the great significance of constructing an ecological protection pattern in Northwest China, this paper systematically summarizes the achievements, new problems and new trends of ecological protection in Northwest China, and accordingly, puts forward an overall spatial arrangement for the ecological protection under “two regions (watersheds)-six zones (core ecological function zones)-multiple points (key ecological points)”. In addition, a key path to construct a new pattern of ecological protection in Northwest China is expounded in order to make more contributions to the acceleration of the harmonious co-existence between human and nature. The path is mainly based on implementing a key task of the protection and restoration around six core ecological function zones, and meanwhile, carrying out three important actions, i.e., the construction of green low-carbon recycling industry system, the overall improvement of ecosystem quality and stability, and the reform and innovation of ecological protection mechanism.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： The archives resources of field stations of Chinese Academy of Sciences (CAS) are important basic scientific and technological resources of the country. In the new era, China has put forward new requirements for the work of scientific research archives. The open sharing and network construction of field stations pose new challenges to the archives management of field stations. In order to deal with the new problems of field station archives management, based on the investigation of the data, documents, and archives management of 137 field stations and 50 supporting affiliations of CAS, this paper analyzes the current situation and problems of field station archives management, and explores the suggestions for improvement. This paper has certain practical and guiding significance for improving the archives management level of CAS field stations, enriching the content of scientific research archives, and building a basic science and technology resource system.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： To realize sci-tech self-reliance and self-strengthening at higher levels in China, it is imperative for disruptive technologies to embark on a new journey and open new horizons. The layout and development of disruptive technologies is a complicated and systematic project with strategic significance, in which the identification of disruptive technologies holds the key and serves as the premise. To this end, based on the underlying logic that disruptive technologies are destined to transit from marginalized forces to mainstream power in the future through the process of 10→3→1 constringency, on the understanding that the generation of disruptive technologies is driven by science and technology, the study puts forward the identifying approach of “identifying-selecting-evaluating”, and develops a methodological framework for identifying disruptive technologies based on science with a view to providing reference for the early identification of disruptive technologies.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Earth Sciences is a multi-disciplinary science, which takes the interaction of Earth’s various spheres and their resources and environmental effects as the research object. As a comprehensive and systematic science that not only expands the frontier of human knowledge but also serves the social and economic development of human beings, Earth Sciences not only studies the past and reveals the evolution history of the Earth, but also faces the future and provides solutions for the sustainable development of human beings. Based on the analysis of the international development trends of Earth Sciences and the summary of the development status and sci-tech funding of Earth Sciences in China, this study proposed that the future development direction and research plan of Earth Sciences in China should be arranged from the perspective of system science and national needs; and from the perspective of the Earth system as a whole, while attention should be paid to the interaction of various spheres and elements in the Earth system and their influence on the social and economic development of human beings. It is extremely necessary to guide the development directions of Earth Sciences research with “Four Orientations”, carry out major scientific research in an organized way, and improve the mechanisms of sci-tech funding and evaluation, so that the research achievements can better serve the national major strategic needs.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： The arid region of Northwest China is one of the driest regions in the world and is characterized with severe water scarcity.Water shortage is the most critical natural factor limiting the high-quality economic and social development and ecological security in the arid region of Northwest China. Based on the long-term monitoring data from the field stations of Chinese Academy of Sciences, observation data of meteorological stations, water resources bulletin and the remote sensing data, this study systematically analyzes the basic characteristics of water resources and ecological environment in the arid region of Northwest China, assesses the changing trends of hydrological elements, water resources, and ecological environment. Besides, this study analyzes the changes of water resources carrying capacity in terms of water use structure and water resources utilization efficiency, and puts forward some suggestions on sustainable water resources utilization and ecological and environmental protection. The results show that the temperature in the arid region of Northwest China has increased at a rate of 0.32℃/decade and precipitation has increased at a rate of 9.32 mm/decade. The glaciers are shrinking at accelerating rate and the runoff supplied by glacier/snow meltwater has increased. The amount of water resources has increased by about 11 billion m3 since the mid-1990s. In the past decade, water use efficiency has been improved, water-saving irrigation area has been expanded, and agricultural water production efficiency has been improved due to water conservation and utilization measures. Water environment capacity has been increased, water carrying capacity has been enhanced, surface water area has been expanded, and the ecosystem condition has improved. However, water resources problems are still prominent in the arid region of Northwest China, the intensity of extreme climate and hydrological events has increased, and the ecological environment is still fragile. In the future, it is necessary to further explore the water resources potential of this region, improve the water resources management, and enhance ecological protection and restoration efforts for better adaptation to the possible risks of climate change, so as to provide scientific and technological support for promoting the construction of the “Green Silk Road” and realizing high-quality regional economic and social development.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Carbon neutrality is a redefinition of human development mode, and a “self-reform” of the production paradigm. It not only affects the economic development of various countries, but also rebuilds the global geopolitical pattern. Since 2060 carbon neutrality target was proposed in September 2020, China has been working hard on exploring how to establish a system of the carbon neutral policy. By considering the system of carbon neutral policy in European Union that is relatively mature, this study comprehensively reviews and analyzes the EU’s system of carbon neutral policy from policy framework, key industry measures, R&D deployment support, and fiscal and financial measures, thus to provide the recommendations on the construction of the system of carbon neutral policy in China.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Big data driven data-intensive scientific discovery, and the Big Earth Data is the base and engine of Earth system science. Based on observation of natural geographical elements on different scales and acquisition of data, and the data obtained during the interdisciplinary research processes, integration and mining analysis will promote the development of Earth science to achieve significant innovation. The Big Earth Data has also become the important national strategic resources, and exerted influence on international cooperation and diplomatic relationship. In this study by means of literature metrology, the Big Earth Data literature from the Science Citation Index (SCI) and Social Science Citation Index (SSCI) was analyzed. According to the global paper output quantity, the influence of countries and institutions, research topic, research hotspot change, international cooperation, and so on, present situation of the Big Earth Data research was revealed. Some suggestions in the future will focus on sharing and integration of developing interdisciplinary Big Earth Data, and in order to improve the Earth science data depth mining theory and method, and to realize analysis, modeling and prediction of complex Earth system, and to support and serve global change and sustainable development.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Big Earth Data for UN Sustainable Development Goals: Climate Change and Action
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： DG 11—sustainable cities and communities is central to achieving all 17 SDGs. However, the lack of data is the main challenge for monitoring and assessing SDG 11 indicators. As an important aspect of technological innovation and big data, Big Earth Data can offer a new key to generate knowledge about the Earth, playing a major role in promoting sustainable development. In this research, we conducted many practical cases to monitor the progress of SDG indicators centered on urban sustainable development, and focused on 6 main themes about urban development, including urban housing, urban public transportation, urbanization, disaster prevention & mitigation, air pollution, and open public space. Based on the above analysis, this study summarizes the challenges for realization of SDG 11. Finally, in order to achieve the SDG 11, we propose some suggestions and actions, including building a sustainable development big data information platform, strengthening the leverage of science and technology in the realization of SDG 11, actively carrying out SDG 11 comprehensive application demonstration, and strengthening scientific and technological cooperation between relevant institutions at home and abroad.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Water balance has always been the key scientific issue facing in vegetation construction in sandy areas of northern China. Lysimeter is regarded as the most reliable tool in studying water balance. The existing problems such as the limited lysimeter sites, the system mismatch and accuracy inconsistency among lysimeters restrict the theoretical innovation of arid ecohydrology. Grouping large intelligent weighable lysimeters is an effective way to break through the aforementioned bottleneck, and conforms to the current interdisciplinary research trend. Funded by the “Key Scientific and Technological Infrastructure Construction Project for the Field Station Network of Chinese Academy of Sciences (CAS)”, Shapotou Desert Research and Experiment Station of CAS completed the platform construction of Automatic Simulating and Monitoring System for Water Balance of Sandy Areas of Northern China—Shapotou Lysimeter Group in 2019. Based on 36 large weighable lysimeters, this platform also assembles other systems such as precipitation and groundwater simulation system, root dynamics monitoring system, soil solution extraction system, and data management information system. Within lysimeters, soils transported from different bioclimatic sandy areas were repacked and the corresponding typical sand fixation shrubs were transplanted. Functions and features of this platform include simulating precipitation and groundwater, and continuously monitoring processes such as soil water dynamics, evapotranspiration, and plant growth with a high accuracy. Shapotou Lysimeter group is an important platform for understanding the ecohydrological interaction mechanisms within revegetation-soil system and for exploring models of plant sand fixation and theories of ecological restoration and rehabilitation of sandy areas. It will greatly enhance the ability for field stations to conduct scientific researches and to solve national key scientific and technical issues.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： In the past 40 years, the animal husbandry industry in China has been developed very fast through the technological and social development. It has been changed into a new stage from quantity to quality of the animal products, and more attention has been paid on the healthy food. The functional animal products will be an important breakthrough for the high-quality development of animal husbandry. This paper reviews the current animal husbandry industry and functional products of herbivorous animal husbandry in China and abroad. Several key scientific and technological issues on functional milk and meat are analyzed. Practical exploration including biotechnology (genetic breeding and biosynthesis) and non-biotechnology (feeding technology) on how to develop the production of functional milk and meat is proposed. It is expected that we can study and consolidate the regulationtheory and technology of functional milk and meat of herbivorous animal husbandry by supports from the national strategic level. It will be significantly important to guide the sustainable development of herbivorous livestock and human diet consumption, and to build the domestic flagship brand of milk and meat products in China.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Strengthening the national strategic science and technology (S&T) power is the key path to achieve China’s scientific and technological independence, and to accelerate the construction process of a powerful nation of science and technology. In the global history of science and technology development in the past century, along with the shift of the world’s scientific center, major developed countries have recognized and strengthened their S&T power from the national strategic level at different stages of development. Based on a profound understanding of the significance of strengthening the systematic layout of national strategic science and technology forces, this paper discusses the layout of national S&T power in the national S&T innovation system, by focusing on the “main position” of national innovation, exploring the “no man’s land” around the frontier, and facing the “main battlefield” of industrial and economy, respectively. Relevant suggestions are put forward to provide reference for strengthening the national S&T power.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： 2020 is the final year to win the battle against poverty and to achieve the goal of building a moderately prosperous society in all aspects. China’s poverty alleviation is gradually transforming from a single dimension to multiple dimensions, from achieving phased goals to establishing long-term mechanisms, and from growth led by external driving forces to self-motivated approaches. Integrating the practices and theoretical development of food education at home and abroad, in 2018, the research team of food education of Chinese Academy of Sciences (CAS) took the lead in proposing “food education for poverty alleviation”. This model is consistent with major strategic goals such as Healthy China, Rural Revitalization, and Sustainable Development Goals, all of which can be effectively connected. Following the principle of “investigation first, scientific guidance, and practical exploration”, the research team of food education of CAS carries out the pilot work of food education for poverty alleviation in Kulun. The team explores practical applications on the basis of theories of food education for poverty alleviation while building a government-led, multi-agent, replicable, and extendable model. It can effectively improve the existing system of poverty alleviation and further consolidate the results of poverty alleviation. Faced with new problems and challenges in the new era, food education for poverty alleviation should gradually build a long-term mechanism with multi-participants. On the basis of the pilot work, we should continuously summarize the experience, improve the existing system, and gradually apply it to other areas.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Highways and railways are important infrastructures of land transportation. The blown-sand hazard control of traffic arteries in sandy areas has always been one important issue in the national economy and society. In view of the characteristics of aeolian environment and the demand for safe operation of traffic arteries, China has carried out a large number of sand hazard control experiment and practices mainly on technology innovation of materials, measures, comprehensive system, maintenance, summed up four configuration patterns of sand control system, and created some patterns of sand hazard control technology for desert traffic arteries in different aeolian environments with Chinese characteristics, the patterns have been applied successfully in the Baotou-Lanzhou Railway, Qinghai-Tibet Railway, Tarim Desert Highway and Open Channel in Gurbantunggut Desert. China’s achievements in the sand hazard control for land transportation arteries have a broad application prospect in sandy areas in the world, especially in the countries along the Belt and Road.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： The problem of sandy desertification in Tibet is one of important regions of desertification research in China, the important progresses in the research on sandy desertification in Tibet in recent thirty years are concluded in the paper, such as finding out the status and characteristics of spatial and temporal change in recent years of sandy desertification in Tibet as well as its driving factors, establishing the theoretical system of sandy desertification in Tibet including the classification system of sandy desertification land and geological-historical evolutionary process of sandy desertification as well as the features of river valley aeolian landform in Tibet, building the combating strategy and control technical system of sandy desertification in Tibet with special plateau features. On the basic analysis of status and development trends as well as the control results of sandy desertification in Tibet, the future combating idea of sandy desertification in Tibet are forward given.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： The Quaternary is marked by the Great Ice Age. The basic characteristics of this great ice age are the alternating of glacialinterglacial period in orbital scale and changes of stadial-interstadial in suborbital scale. Present is a relatively warm interglacial period, with glaciers covering only 10% of the land area. At the glacial maximum, glaciers covered about 30% of the global land area, permafrost spread, climate was dry with prevalence of dust, sea level reduced 130–150 m, vegetation contracted to low latitudes more than 10°, and the vertical band spectrum moved down more than 1 000 m. The astronomic theory of ice ages has successfully explained the glacial-interglacial cycles, however, there are still a lot of problems to need studies in detail. Quaternary is also the period of ancient human development. Ancient human was born in East Africa and spread to Eurasia only on a limited scale about 2 Ma ago. The spread on a large scale started during the last interglacial and spread to America and Australia by means of land bridges during Last Glaciation Maximum (LGM). After the younger Dryas, the climate became warm and the human entered the Neolithic Period and gradually transited to the agricultural society. After the Industrial Revolution, human development has been profoundly affecting the natural process of the Earth, leading to global warming, heralding the arrival of an “Anthropocene”.
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