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25 September 2023, Volume 50 Issue 9 Previous Issue    Next Issue

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Policy and Strategy Research

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Suggestions on Strengthening Construction of Scientific Research Integrity of Science and Technology Plan Projects in Tianjin YANG Jinli, FANG Bing 2023, 50 (9):  1-3.  Abstract ( 474 )   Save Scientific research integrity is the cornerstone of scientific and technological innovation. As a key part of scientific and technological management,science and technology plan projects are also an important means to strengthen the construction of scientific research integrity. Strengthening the scientific research integrity in the science and technology plan projects is an important approach to implement the important directives of General Secretary Xi Jinping and the Central Committee of the Communist Party of China,optimize the scientific research management,and enhance the scientific research performance. By sorting out the general situation of scientific research integrity management mechanism of science and technology plan projects in China,summarizing the experience and practice of strengthening scientific research integrity management of science and technology plan projects at the national and provincial levels,and combining with the situation of scientific research integrity construction of science and technology plan projects in Tianjin,this paper puts forward suggestions on further strengthening scientific research integrity management of science and technology plan projects. References | Related Articles | Metrics

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Research on High-quality Development Status and Countermeasures of High-tech Enterprises in Xiangyang City —Based on Analysis of Torch Statistical Survey Data ZHAI Xin, LI Yanran 2023, 50 (9):  4-4.  Abstract ( 546 )   Save Since the promulgation and implementation of the Implementation Opinions of the CPC Xiangyang Municipal Committee and the Xiangyang People’s Government on Strengthening Scientific and Technological Innovation to Lead High-quality Development,Xiangyang City has vigorously carried out the cultivation of high-tech enterprises,and the number of high-tech enterprises in Xiangyang has increased significantly. Based on the 2022 torch statistical survey data,this paper conducts data mining and comparative study on the application and identification of high-tech enterprises in Xiangyang City from 2020 to 2022. The distribution of identified high-tech enterprises in different districts of Xiangyang City,the distribution of technology field identification,and the scale of high-tech enterprises identified in 2022 are analyzed. The problems existing in the development of high-tech enterprises in Xiangyang City are put forward,and countermeasures and suggestions are given. References | Related Articles | Metrics

Management & Innovation

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Research on Development of Small and Micro Enterprises in Field of Medical Devices from Perspective of Patent JIA Dongyao, AN Ran 2023, 50 (9):  8-10.  Abstract ( 511 )   Save In order to improve the intellectual property awareness of small and micro enterprises more effectively,the patent application status of small and micro enterprises in the field of medical devices in Tianjin Binhai New Area is taken as the research sample,and the data is used as the carrier to analyze the number of patent applications,patent legal status,patent authorization and other aspects through patent public data retrieval. This paper summarizes the problems existing in patent applications of small and micro enterprises in the field of medical devices,and puts forward relevant suggestions from three dimensions：technology,policy and industry,with a view to comprehensively improving the capabilities of small and micro enterprises in the field of intellectual property creation,utilization,protection and management. References | Related Articles | Metrics

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Construction of Vocational Education Industrial College and Transfer and Transformation of Technical Achievements LI Xiang 2023, 50 (9):  11-13.  Abstract ( 538 )   Save The state actively encourages the transfer and transformation of scientific and technological achievements in universities and research institutes. However,the technology transfer in the field of vocational education has typical bottlenecks such as limited sources,insufficient adaptability and blocked transfer process. Based on the background of the construction of industrial colleges,this paper puts forward the viewpoint of promoting the transfer of vocational education technology based on industrial colleges. By summarizing and analyzing the various bottleneck problems currently faced,the construction idea of vocational education industrial colleges to build industrial technology transfer centers with cluster advantages is put forward. References | Related Articles | Metrics

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Analysis of Factors Affecting Approval of National Natural Science Foundation of China—Case of a Specialized Hospital in Tianjin SUN Meng 2023, 50 (9):  14-19.  Abstract ( 719 )   Save By downloading the National Natural Science Foundation of China （NSFC） application form of a specialized hospital in Tianjin in 2021,and extracting the basic information,research history and previous achievements of the applicants from the application form,the influencing factors of NSFC project approval are analyzed by single-factor and multi-factor logistic regression. The application of NSFC of the specialized hospital in 2021 is sorted out,the factors affecting the approval of NSFC are identified,and countermeasures are proposed from the management perspective,so as to provide a decision-making basis for the future application of NSFC projects. The single-factor logistic results suggest that five indicators,namely the title of talent,the number of representative SCI publications,the cumulative impact factor of representative publications,the highest impact factor of representative publications,and the cumulative other achievements in the past five years,are significantly associated with the improvement of the odds of receiving funding for science foundation projects. The variables with no co-linearity are selected among those with statistical significance in the univariate analysis,and the variables are introduced by multi-factor unconditional logistic regression （stepwise method）,and the results show that the main factors affecting the funding of NSFC are the title of talent,the cumulative impact factor of representative publications,and other achievements in the last five years. In the fund application work,it should focus on people with PhD degree and certain prior foundation,and do a good job in the application counseling;at the same time,it should strictly grasp the effectiveness of project progress,and focus on the young people after the completion of the study;in addition,it should broaden the scope of performance recognition and strengthen the importance of other achievements. References | Related Articles | Metrics

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Research on Realization Path of Government Digital Transformation ZHU Kongcun 2023, 50 (9):  20-23.  Abstract ( 475 )   Save The government digital transformation is a significant project to implement the Digital China strategy,as well as an important measures to modernize the governance system and capacity of government departments. This paper summarizes the development process and characteristics of the government digital transformation,generalize the problems existing in the current government digital transformation,and finally discusses the realization path of the government digital transformation from five aspects：theoretical and institutional system,platform support system,data resource system,application service system,and security guarantee system,which can provide theoretical reference for the continuous promotion of the government digital transformation. References | Related Articles | Metrics

Basic Research

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Research on Land Survey and Land Valuation Calculation of Exploitable Land in an Unconstructed Area YANG Weibin 2023, 50 (9):  24-27.  Abstract ( 500 )   Save The development of the unconstructed area is an important means of urban development. Before the development,the compliance of the land,the size of the developable area and the value of the land are the basic conditions to measure whether the area has the development potential. On the basis of the results of the third national land survey,combined with the UAV tilt photogrammetry technology,a comprehensive survey is conducted to determine the current land use status,land ownership status,and land supply status of the undeveloped area. By means of field survey,office processing and other means,the immediately developable land area of the unconstructed area is basically determined,and its land valuation is estimated,which provides a reference theoretical basis for subsequent land development. References | Related Articles | Metrics

Applied Technology

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Research and Application of Leakage Prevention and Plugging Technology in a Block in Western Bohai Sea Area CHEN Jianhong, TANG Bosong, LUO Wei, DU Xuelei, FANG Mu 2023, 50 (9):  28-30.  Abstract ( 498 )   Save Influenced by fault-nose structure,Oilfield S in western Bohai Sea area has 52 faults in 4 categories. During the drilling,the fault type fracture zone is encountered,and the formation pressure bearing capacity is low,resulting in loss of return leakage. By analyzing the leakage mechanism of the oilfield,the leakage prevention technical scheme is formulated from the aspects of leakage risk assessment,drilling fluid performance control scheme and ECD accurate prediction and control. For the malignant lost circulation wells in the oilfield,the high pressure-bearing plugging technology is used to solve the problem of low plugging success rate of the fault lost circulation wells,which is of great guiding significance to the development of fault leakage prevention and plugging technology in Bohai Oilfield. References | Related Articles | Metrics

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Study and Application of Combined Well Pattern Development Optimization in Heavy Oil Area at Edge of Bohai Oilfield P PANG Weihao, WANG Xinpeng, XU Wankun, LI Lin, SHEN Chunsheng 2023, 50 (9):  31-33.  Abstract ( 451 )   Save In order to solve the problems such as unclear understanding of inter well interference and unclear deployment timing in the combined well pattern development in the heavy oil area at the edge of Bohai Oilfield P at this stage,the plane relative position of horizontal well and directional well,and the timing of horizontal well deployment are studied by using numerical simulation method. The study shows that the inter well interference of the combined well pattern is the largest when the directional well is deployed at the end of the horizontal well;When the directional well is deployed in the middle of the horizontal well,the recovery degree of the block is the largest;For developed reservoirs of directional wells,the lower the water cut is,the greater the cumulative oil production will be increased by deploying horizontal wells to form a combined well pattern. This research method can be used as a reference for other similar oilfield development stages to optimize the deployment of combined well pattern and improve the oilfield development effect. References | Related Articles | Metrics

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Application and Effect Evaluation of Automatic Cleaning Device for Crude Oil System Filter Screen in an Offshore Oilfield WANG Zhishou, DAI Qijia, ZHANG Shaoguang, QIAN Yongjun 2023, 50 (9):  34-37.  Abstract ( 439 )   Save The state of the filter screen in the offshore oil field crude oil system directly affects the operating efficiency and service life of the pump. Various impurities generated during crude oil exploitation can not be completely avoided. In order to ensure the running state of the pump,it is necessary to strengthen the cleaning frequency of the filter screen. With the increase of offshore crude oil production year by year,A certain offshore oilfield,serving as the crude oil export hub of the development area,is experiencing a simultaneous increase in the workload for cleaning its filtration screens. There are problems of low manual cleaning efficiency and poor cleaning effect at the operation site. The automatic cleaning filter screen device can free the operators from the harsh operating environment. At the same time,the device can achieve all-round three-dimensional cleaning of the filter screen with good cleaning effect,It also provides reference and guidance for screen cleaning in other oilfields. References | Related Articles | Metrics

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Application of Integral Turnover Lifting Technology in Construction of Offshore Platform Topside Living Quarter LAN Guoyang, HU Xingtao, RUAN Shengfu, LI Wenjing 2023, 50 (9):  38-41.  Abstract ( 482 )   Save In the development process of marine engineering facilities,the progress of many production projects is limited by the constraints of construction site resources. In order to address the current shortage of skidway resources in the company’s construction site,through the research on the construction technology of living quarter,the living quarter on the module is creatively moved to the site for reverse construction,then is lifted onto the module,which greatly shortens the construction time on the skidway,thus solving the shortage of skidway resource. In order to realize the optimization of this construction technology,the key point is to analyze the stress problems of unfavorable working conditions during the integral turnover lifting process,through SACS software to simulate the integral turnover lifting,and calculate whether the structural strength and deformation in turnover lifting process meet the requirements,so as to determine whether it can be applied in practice. References | Related Articles | Metrics

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Analysis of Hazardous Characteristics of Refining Sludge and Research on Resource Utilization Treatment Technology CHE Lianfa, FANG Jian 2023, 50 (9):  42-45.  Abstract ( 460 )   Save By analyzing and categorizing the source of sludge from refining and chemical enterprises,a study on hazardous characteristics is conducted. The focus is on selecting representative samples of biochemical sludge. Analysis is carried out from seven aspects：corrosiveness,flammability,reactivity,leaching toxicity,toxicity,acute toxicity and compositional analysis. The biochemical sludge from the refining and chemical enterprise is determined as general industrial solid waste. According to the different hazardous characteristics of oil sludge,scum and biochemical sludge,the respective resource utilization technology routes are determined. It provides technical reference for sludge treatment in refining and chemical enterprises. References | Related Articles | Metrics

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Exploration and Practice of Site Assembly Test of Turbine Generator Set LI Wanjiong, CHEN Fengbo, ZHANG Jin, ZHANG Xuecheng, YIN Jihong 2023, 50 (9):  46-49.  Abstract ( 467 )   Save At the beginning of 2020,affected by COVID-19 infection,the turbine generator set of an oilfield development project could not be delivered normally. In order to shorten the delivery cycle,the idea of conducting assembly tests at the site was proposed. By summarizing and analyzing the technical difficulties in the assembly and testing process of turbine generator sets at the construction site,corresponding measures are proposed,providing a beneficial reference for subsequent projects. References | Related Articles | Metrics

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Vibration Analysis and Vibration Reduction Measures of Reciprocating Compressor on Offshore Platform SHI Xiaoqing, MU Qing, AN Zhenwu, ZHANG Xiaopin, ZHU Benrui 2023, 50 (9):  50-55.  Abstract ( 506 )   Save The reciprocating compressor is the key equipment for collection,pressurization and transportation of the offshore platform,and its operation will generate vibration,which will bring hidden dangers to the safety production of theplatform. Therefore,it is necessary to evaluate the dynamic response of the compressor. Taking the reciprocating compressor newly added in the renovation of a platform as an example,the finite element model of the deck was established by ANASYS software,and the modal analysis,harmonic response analysis and transient response analysis of the platform were carried out. The results all meet the specification requirements. Machine control and vibration reduction measures are adopted to ensure the safe operation of reciprocating compressors on offshore platforms. The dynamic analysis method of the compressor can also be applied to the vibration analysis of other equipment on the offshore platform,providing reference and reference for similar projects. References | Related Articles | Metrics

Science & Society

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Study on Problems and Countermeasures of Forest Resources Protection and Utilization LAI Yanjun 2023, 50 (9):  56-57.  Abstract ( 460 )   Save Forest resources are extremely important public resources. They play an active role in maintaining the entire ecosystem,beautifying the environment,and promoting coordinated social development. They also have ecological adjustment functions to ensure that the natural ecosystem is in a relatively balanced state. This paper focuses on the analysis of the relationship between the protection and utilization of forest resources,points out the existing problems in the protection and utilization of forest resources. On this basis,the countermeasures to solve the problems of forest resources protection and utilization are put forward,including establishing the awareness of forest resources protection,enhancing the informatization level of forest resources protection and utilization,improving the construction of relevant legal systems for the protection and utilization of forest resources,increasing efforts in cultivating professionals related to the protection and utilization of forest resources and strengthening the infrastructure construction of forest resources protection and utilization. References | Related Articles | Metrics

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Exploration and Practice of Using Sensors to Measure Trajectory of Flat Throwing Motion in Middle School Physics Teaching REN Jinhong 2023, 50 (9):  58-61.  Abstract ( 476 )   Save Science and technology is an important support for the development of national economy. In the overall quality structure of primary and secondary schools,science and technology education is an important way to implement quality education. By strengthening science and technology education in primary and secondary schools,youth science and technology awareness and quality can be strengthened,so as to promote the implementation of quality education. Taking the experiment of using sensors to measure the trajectory of flat throwing motion in physics teaching as an example,this paper explains the purpose and importance of science and technology education and the gains of teenagers in science and technology education. References | Related Articles | Metrics

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Thinking about Regional Medical Resource Allocation from Perspective of Sharing Economy QIN Sisi, LI Dong, GUO Yingjie, LI Ying, HAN Bochen, GUO Miao 2023, 50 (9):  62-65.  Abstract ( 495 )   Save The market economy is influenced by the laws of supply and demand,and medical resources are no exception. When the market mechanism fails,there can be a simultaneous presence of redundancy and scarcity in medical resources. Promoting resource sharing within the region has become one of the countermeasures to alleviate this problem. The country has made many positive attempts to balance the allocation of medical resources and improve the accessibility of medical treatment for residents in remote areas,including promoting the construction of medical consortium and carrying out health information reform. From the perspective of sharing economy,this paper explains the necessity of regional medical resource sharing,lists the practices that the government has done to promote it,analyzes the existing problems of regional medical resource sharing and puts forward policy suggestions. References | Related Articles | Metrics

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Remote Sensing Inversion of Water Quality Parameters of Dapu River in Lianyungang Based on Machine Learning Method WANG Jingshun, CHEN Ying, ZHANG Yue, XU Xiangkai, HE Chao, HE Miao 2023, 50 (9):  66-72.  Abstract ( 538 )   Save This study takes parts of Dapu River and Dapu vice River in Lianyungang City as the study area,and conducts research and analysis on water pollution through field measured data and UAV hyperspectral remote sensing images. Multi- layer perceptron （MLP） is used to construct the prediction and inversion model of water quality parameters for UAV hyperspectral data processing,and K-Fold cross-validation is used. The coefficient of determination （R2） between the predicted values of ammonia nitrogen and total phosphorus and the measured values is higher than 0.8,and the mean absolute percentage error （MAPE） is less than 15%. The R2 of permanganate index is 0.58,because its numerical range is small,but the overall prediction effect is ideal,the MAPE is only about 2%,and the inversion effect is good. Finally,the current situation of pollution sources and the main water environment problems of the target reach are analyzed and discussed through the inversion results. References | Related Articles | Metrics

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An Effective Way for Teenagers to Carry Out Aerospace Science Popularization Education SHI Feng, ZHOU Linna 2023, 50 (9):  73-76.  Abstract ( 488 )   Save Carrying out aerospace science popularization education for young people is an important measure to enhance their scientific research ability foundation,which is of great significance for promoting national defense education in modern countries. It can effectively solve the contradiction between high-level aerospace technology needs and low innovation capabilities of research teams,and the contradiction between high-level quality education requirements and insufficient investment in basic education. Taking Liaoning Province as an example,based on the existing 81 aerospace units in Liaoning,aerospace enterprises and institutions,research institutes,and universities are gathered to form a complete education system by building 14 science popularization education platforms,in order to achieve the transformation of science popularization education from a simple experiential passive acceptance mode to active participation. References | Related Articles | Metrics

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Research on Development of Traditional Chinese Medicine Culture Popularization in Guangxi—Taking Guangxi Traditional Chinese Medicine Culture Publicity Base as an Example JI Xingyun, DU Chenjia, FAN Jianhua 2023, 50 (9):  77-81.  Abstract ( 452 )   Save Traditional Chinese medicine culture is an important part of Chinese culture,and the popularization of traditional Chinese medicine culture is one of the important measures to promote and popularize traditional Chinese medicine culture,which is of great significance to carry forward and inherit traditional Chinese medicine culture. This paper analyzes the characteristics of the popular science activities carried out by Guangxi Traditional Chinese medicine culture publicity and education base,summarizes the main problems,and puts forward specific measures to improve and strengthen the popular science publicity of traditional Chinese medicine culture in combination with the current development situation of traditional Chinese medicine culture in Guangxi,so as to better carry out the popular science work of traditional Chinese medicine culture. References | Related Articles | Metrics

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Research and Exploration of Hybrid Teaching Mode of Combining Online and Offline Teaching with Virtual and Real Teaching in Health Vocational Education XU Rong, GAO Wenjun 2023, 50 (9):  82-85.  Abstract ( 501 )   Save With the rapid development of China’s education and modern teaching methods,the hybrid teaching method of combining online and offline teaching with virtual and real teaching has gradually matured. Through continuous optimization and improvement,it has become the new normal in teaching. Starting from the requirements of the national vocational education reform and the development of vocational education informatization,based on knowledge expression,student learning,teacher-student interaction,curriculum resources,simulation training,learning effectiveness and learning evaluation,the advantages and characteristics of online teaching,offline teaching and hybrid teaching are analyzed and compared. Based on the current problems of new textbooks,teaching resources and teaching practices,and focusing on four aspects：teaching evaluation,new forms of textbooks,virtual simulation training and teaching practice,this paper proposes the organic integration of two teaching modes,online and offline,to enrich teaching content and resources,mobilize the enthusiasm of “teaching” and “learning”,promote the construction of high-quality course resources,leverage the advantages of deep cooperation between colleges and universities,and develop a virtual simulation training system,achieve a breakthrough in vocational education teaching and training bottlenecks,and improve the effectiveness of deep learning and professional practice ability of students. References | Related Articles | Metrics

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Study on Meteorological Assessment of Ecological Quality in Green Barrier in Jinnan Bali Bay of Tianjin SUN Shupeng, LIAO Yunchen, WU Yang, YIN Ziwei, ZHAO Yue 2023, 50 (9):  86-89.  Abstract ( 498 )   Save Based on the data of the eco-meteorological monitoring station from November 2021 to October 2022,the comprehensive evaluation index method was used to conduct the meteorological evaluation of the ecological quality in the green barrier in Jinnan Bali Bay of Tianjin. The results suggest that the humidity index,vegetation coverage index and soil moisture index in July 2022 were at the highest level in the study period,and the meteorological disaster index was at a lower level,so the meteorological comprehensive evaluation index value was the highest in this period,reaching 0.74;The comprehensive evaluation index value in August took the second place,reaching 0.72;The index value reached the lowest in December 2021,only 0.21. The annual average of the comprehensive evaluation index was 0.47. It is consistent with the actual situation of the green barrier at the initial construction stage. This study has important reference significance for the subsequent objective assessment of the ecological quality of the green barrier. References | Related Articles | Metrics

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Research on Planning and Design of Science Popularization Base and Science Popularization Exhibition Hall of Guangyuan Airport Sewage Treatment Plant YUAN Kai, ZOU Xianbing, ZHAO Zhi, HUANG Bin 2023, 50 (9):  90-93.  Abstract ( 464 )   Save In order to further promote the construction of environmental protection science popularization base system,meet the growing demand of the whole society for environmental science popularization,enhance the public’s theoretical knowledge of environmental protection,guide the concept of water saving,water loving,water sparing,water protection and scientific water use,it is necessary to build a science popularization education base with both the function of sewage treatment and the knowledge of environmental protection. Guangyuan Airport Sewage Treatment Plant promotes the construction of environmental protection science popularization base focusing on the concept of “circulation”. Through the popularization of theoretical knowledge and diversified forms of science popularization,combined with personal experience and experiment,the science popularization base plays an exemplary role,providing a meaningful reference direction for making full use of the surplus value of the sewage treatment plant. This aims to construct a unique environmental protection science popularization base in Guangyuan. References | Related Articles | Metrics

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Space-Time Analysis of Air Pollution Concentration Prediction Error of WRF-Chem Model in Tianjin MA Gengxue, LI Gang, YANG Jianbo 2023, 50 (9):  94-98.  Abstract ( 499 )   Save By analyzing the temporal and spatial characteristics of errors between the daily forecast results of WRF-Chem model and the actual observations in Tianjin from 2019 to 2021,the following conclusions are drawn：（1） The model forecast results have the best correlation with O3 （0.90） and the worst correlation with PM10 （0.59）. （2） The overestimation of pollutant concentration in the model prediction results is more significant,and the absolute error of PM10,PM2.5 and O3 prediction is significantly higher than the other three pollutants. （3） The order of relative error magnitude of model prediction is O3<CO<NO2<SO2<PM10<PM2.5,which is the highest in summer,approximate in autumn and winter,and the lowest in spring. The relative error in summer,autumn and winter is the largest in PM2.5,while in spring it is the largest in PM10. （4） From the spatial distribution characteristics of the relative error of the concentration prediction of the two main pollutants,PM2.5 is relatively large in Jizhou,central urban area and Dagang;PM10 is larger in Xiqing,Wuqing,Tanggu and Baodi in the central region. （5） The worst prediction effect of the model is PM10,followed by PM. References | Related Articles | Metrics

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Analysis of Impact of Urbanization on Meteorological Elements in Xiqing LIU Zhijie, WANG Jing, YU Hong 2023, 50 (9):  99-101.  Abstract ( 484 )   Save Based on the hourly observation data of meteorological stations in Xiqing from 2018 to 2022,the impact of urbanization on the meteorological elements in Xiqing was compared and analyzed. The results show that urbanization makes the air temperature in urban areas higher than that in rural areas, with the largest temperature difference in winter. The extreme value of minimum temperature is more obvious between urban and rural areas. The difference of intra-day temperature is more significant at night,but the difference of minimum temperature is only significant at the second half of the night. There is no significant difference between urban and rural areas in precipitation. The wind speed in urban areas is weaker than that in rural areas,and the average wind speed and its difference are the largest in spring,while the difference of extreme wind speed is the largest in summer. The average wind speed and extreme wind speed in urban and rural areas have diurnal variation,and the wind speed difference at noon is the most obvious. References | Related Articles | Metrics

Editor's Voice

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Analysis and Exploration of Innovation Consciousness and Ability Enhancement Approaches for Editors in Era of Media Convergence ZHANG Ling, WANG Wei 2023, 50 (9):  102-104.  Abstract ( 502 )   Save The media convergence technology is widely used in various fields,in the process of promoting the integration of new media and traditional media,it also has a corresponding impact on journal publishing,including higher and higher requirements for the planning level of journals,more and more subdivided categories,etc.,which also means that traditional journal editors must accelerate the speed of transformation and upgrading in order to survive in the era of media convergence. Based on this,this paper analyzes the influence and ability requirements of journal editors in the era of media convergence,and proposes targeted solutions for reference on the basis of analyzing the existing problems of traditional journal editors. References | Related Articles | Metrics

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Exploration on Way to Improve Effectiveness of Topic Selection and Contribution Solicitation in General Science and Technology Journals —Taking Journal of Disaster Prevention and Mitigation Engineering as an Example ZHAO Xia, CHI Yingying, SU Zeyun, ZHOU Xiaotan 2023, 50 (9):  105-107.  Abstract ( 493 )   Save Under the background of building a “world-class journal”,the existence and value of general sci-tech journal can not be ignored. In view of the lack of high-quality contributions,the decline of influence and the lack of policy support in many journals,the methods of topic selection and contribution solicitation in Journal of Disaster Prevention and Mitigation Engineering in recent years are summarized. Through the comparative analysis of the citation and download volume of the hot papers and the same kind of papers of the first-class journals,this paper probes into how the general sci-tech journals take the lead in the topic selection and contribution solicitation,so as to seek a better development path. References | Related Articles | Metrics

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Building a National Aerospace Academic Discourse System with Journal Cluster as Carrier: Significance and Countermeasures LIU Peipei 2023, 50 (9):  108-112.  Abstract ( 515 )   Save Independent innovation is inseparable from the construction of independent discipline discourse system. China’s aerospace industry has gone through the development stage of ‘from nothing to imitation’ and ‘from imitation to innovation’. There is an obvious ‘coming from abroad’ phenomenon in the discipline discourse system,which has a negative impact on the international discourse power,participation in international technical standards,and the construction of independent innovation system. The academic field also shows the scarcity of top journals,lack of discourse soft science research,and lack of academic evaluation system. With the completion of the construction of the ‘Tiangong’ space station,the delivery of C919 and the launch of ARJ21,China is about to enter a new development stage of ‘from creation to being strong’,and the proportion of self-generated terms is increasing year by year. In this context,it is urgent to build a high-quality academic journal group,give play to the role of the academic community of scientific and technological journals,introduce knowledge atlas,scientific and technological information analysis and other technologies,lead the technology research and development in the aerospace field,improve the overseas market share of technology and products,promote more self-generated terms,gradually establish an independent academic discourse system and evaluation system,and enhance the talent attraction and international discourse power. References | Related Articles | Metrics