bluuebunny/crossref_metadata_2025 huggingface dataset:
The status, Characteristics and Enlightenment of US Military Food Procurement Support
Authors: Zhang Yongwei , Gao Mingjiang
Published: April 2023

This paper systematically expounds the evolution of the US military food procurement support the current organizational system and its operational processes, analyzes its characteristics, and proposes Strengthening the centralized procurement support for military food, Deep integration of military and civilians to promote military food support , Standardizing the operational process of centralized procurement of military food , Accelerating the information construction of military food procurement support four inspirations based on China's national conditions. Over the years, the US military has accumulated a large amount of practical data and experience in logistics support through various military operations, and constantly summarizes and reflects on its logistics support operations in order to continuously optimize its global logistics support system. This paper takes the food purchase guarantee of the American army as the research object, expounds its development history, current organization system and operation process, analyzes its characteristics, and puts forward several enlightenments combined with the current situation of the food purchase guarantee of the American army.
A survey on public welfare cognition of college students in 2023
Authors: Yi Biaoxiong , Sun Yu
Published: April 2023

This paper describes the situation of public welfare volunteerism, and conducted a survey in Zhejiang Province. According to the existing data, a survey method was designed, and a comparative study was carried out in the form of multi-stage sampling, simple random sampling and unequal probability sampling. In addition, a questionnaire was set up according to the existing data, and we also conducted a study on sample quality control. For example, the unqualified samples are discarded, and the final conclusion is that most people have a strong purpose to participate in public welfare, while the appeal and credibility of public welfare itself are almost ignored.
Research on the effect of China's pension insurance system on the resumption of work and production in the event of the new crown epidemic
Authors: Chen Shurui
Published: April 2023

This paper analyzes the relevant combinations of promoting the economy during the epidemic from a configuration perspective, provides reference suggestions for the occurrence of future public events, and provides Chinese wisdom for other countries. Taking 9 policies for resuming work and production as conditional variables, a clear set and qualitative comparison of 3185 policies for resuming work and production in 31 provinces and cities in China (csQCA) was carried out, and the best policy combination suitable for resuming work and production policy tools during the epidemic was compared. The results show that no single policy is sufficient to make the economy recover significantly, and the combination of policy variables has a clear effect on the recovery of the economy.
Discussion on the Balance of Intellectual Property Interests under Big Data
Authors: Liu Yiling
Published: April 2023

Based on the era of big data, this paper first introduces the concept, connotation and function of interest balance, and then expounds the relationship between the era of big data and intellectual property rights, pointing out that big data has become an important driving force for social innovation and economic growth in the emerging stage, but it inevitably conflicts with the legal interests of intellectual property protection in the development process, which leads to the opportunities and challenges that intellectual property rights will face as private rights protection, and sums up how to protect intellectual property rights in the era of big data. On the premise of making full use of the data, we can play the role of balancing interests, so as to achieve the social public goal of promoting economic development, scientific and cultural prosperity with intellectual property rights.
Digital Economy Empowers High-quality Development of Traditional Manufacturing Industry: Evidence from Nanjing Metropolitan Area
Authors: Jiang Zongyue , Zhou Zejiong
Published: April 2023

The integration and development of the digital economy and the real economy, especially the traditional manufacturing industry, is the focus of China's development at this stage. With its high efficiency and high value, the digital economy has rapidly exerted its powerful traction in the field of manufacturing, giving the traditional manufacturing industry a chance to usher in a "spring of development" and gradually align itself with the direction of high-quality development. In order to find micro evidence that the digital economy enables the high-quality development of traditional manufacturing industry, this article uses factor analysis methods to measure the development level of its digital economy based on the perspective of Nanjing Metropolitan Area, and conducts an empirical analysis of the effect of the digital economy on the high-quality development of traditional manufacturing industry.
Review of Research on Protean Career Attitude
Authors: Chen Chiyin , Jiang Junpeng
Published: April 2023

With the vigorous development of knowledge economy and digital technology, the traditional employment relationship that emphasizes long-term stability has changed, and the self-oriented and value-driven protean career attitude has gradually attracted the attention of the academic community. This paper combs the domestic and foreign researches on the protean career attitude from the aspects of concept, dimension and measurement, antecedent variable and outcome variable, and summarizes the main contributions and future research directions.
Research on Cash Flow Management of Chinese Textile Export Enterprises under the Impact of the Epidemic
Authors: Chen Ke
Published: April 2023

Under the impact of the epidemic in 2020, many export enterprises faced the risk of bankruptcy due to poor cash flow management capabilities. Taking textile enterprises as an example, this paper discusses the cash flow management of Chinese export enterprises under the impact of the COVID-19. Firstly, it introduces the significant significance of cash flow for export enterprises, then analyzes the cash flow difficulties faced by Chinese export enterprises under the impact of the epidemic, and finally proposes strategies for cash management of export enterprises in the post epidemic era.
China-NIAHS Perspective of Ancient Jujube Forest in Sichuan Plateau of Lingbao, Henan Province Study on the Characteristics of Landscape Spatial Pattern
Authors: Zhao Yinfang , Zhang Xing , Zhang Gang
Published: April 2023

Based on the research background of China 's important agricultural cultural heritage perspective (China-NIAHS), this paper takes the landscape of the ancient jujube forest in Lingbao City, Henan Province as the research object, and uses the landscape pattern index analysis method in landscape ecology to analyze spatial pattern characteristics of the ancient jujube forest in Lingbao City. The results show that: (1) Jujube forest accounts for the largest proportion of all landscape types. Jujube forest, as the dominant landscape type in the study area, plays a supporting role in the study of landscape pattern characteristics in the whole area. (2) The spatial distribution of jujube forest is closely related to the distribution of roads and settlements in the study area. The jujube forest accounts for a large proportion of the total landscape area in the study area. From the characteristics of the number of patches, it can be seen that the jujube forest has low fragmentation and the landscape distribution is concentrated. (3) From the landscape shape index, it can be seen that the complexity of jujube forest patches is low, the artificial effect is obvious, and the shape is regular; in addition, from the analysis of the spatial adjacency characteristics of the landscape, the correlation between the distribution of jujube forest landscape and other landscape elements can also be proved again. The research results have certain guiding and reference significance for the protection and development of agricultural cultural heritage, the development and utilization of agricultural landscape resources and rural revitalization.
Coupling and Coordination of Traffic and Tourism Development in Pucheng county Region Spatio-temporal Characteristics
Authors: Zhao Qian , Tian Xiaoqi , Liu Wenli
Published: April 2023

The comprehensive development evaluation system of county transportation and tourism system was constructed, and the spatio-temporal characteristics of the coupled and coordinated development of pucheng county transportation and tourism system were analyzed by using the coupled and coordinated model. The results show that:1)In terms of the time series change of comprehensive development level, the development level of county transportation and tourism system showed a trend of sustained growth or steady development from 2016 to 2019, and the tourism development improved in 2020, but the county transportation was greatly affected by the epidemic situation, and the changes fluctuated obviously, and the two changes were unbalanced.2)On the change of coupling and coordination time series, the coupling degree remained at a high level with no obvious fluctuation, and the overall level of coupling and coordination was high, which indicated that traffic development effectively promoted the development of tourism.3)In the spatial evolution of coupling and coordination development, the coupling and coordination degree of counties in Weinan City in 2019 and 2020 is quite different. Except Fuping County and Chengcheng County, the coupling and coordination of transportation and tourism systems in all counties changed from coordination to imbalance. Pucheng county developed from primary coordination in 2019 to serious imbalance in 2020, which was greatly affected by the epidemic. Finally, based on the actual situation in Pucheng county, some suggestions are put forward for the development of county transportation and tourism.
Study on the Evolution of the Temporal and Spatial Structure of Inbound Tourist Market in Shaanxi Province
Authors: Yan Hui
Published: April 2023

Based on the number of inbound tourists in Shaanxi Province from 2009 to 2019, this paper selects 18 tourist markets as samples, and analyzes the temporal and spatial evolution characteristics of inbound tourist markets in Shaanxi Province from the perspectives of time and space by using the research methods of market share and interannual change index. The results show that the number of inbound tourists in Shaanxi Province is increasing year by year. The interannual change index of inbound tourists decreases year by year, and the inbound tourism market tends to be stable gradually; The spatial structure of inbound tourist market in Shaanxi province presents an "M" shape, which tends to be stable gradually. In the tourist market of Shaanxi Province from 2009 to 2018, except for Hong Kong, Macao and Russia, Japan and Indonesia changed from a strong pro-landscape market to a weak pro-landscape market; Thailand and Malaysia have changed from a weak pro-scenic market to a strong pro-scenic market, and the pro-scenic degree of other tourist markets has not increased or decreased much. Finally, according to the current situation of inbound tourist market in Shaanxi Province, this paper puts forward corresponding countermeasures to improve it.
Social assistance dilemma for rural disabled people based on social exclusion theory
Authors: Zhang Yufan , Fan Yuxuan
Published: April 2023

With the development of our economy, China has now entered an all-round well-off society and has basically achieved total poverty eradication, and the level and level of various social security systems have been greatly developed. As a very special group of people with disabilities, rural people with disabilities have become one of the main groups we focus on for social assistance. However, due to the specificity of their location and their own characteristics, rural people with disabilities have a series of difficulties in receiving social assistance. Based on the theory of social exclusion, this paper will analyses how people with disabilities in rural areas are excluded from social assistance, and make corresponding policy recommendations.
Study on the Coordinated Development of New Urbanization and Industrial Structure in Weinan City
Authors: Yang Wanyue , Jiao Ying , Gan Yating
Published: April 2023

The development and quality of new urbanization cannot be achieved without the support of various subsystems within the city, and the industrial structure, that is, is an important force to promote the development of new urbanization, and the interaction relationship between the two is an important issue in realistic development. By constructing the quality evaluation system of new urbanization and industrial structure evaluation system of Weinan City, the quality of urbanization and industrial structure of Weinan City from 2012 to 2021 are measured and evaluated objectively. The data show that the quality of new urbanization and industrial structure of Weinan City from 2012 to 2021 have been well developed, and the coupled coordination relationship between them is high-quality coordination but there is a decreasing trend.
Analysis of research hotspots and trends on Chinese brands and service quality under the new development pattern of “Dual Circulation”
Authors: Jiang Xingyu , Zhou Jie , Li Wenxin , Feng Xilei , He Zhengbo , Zou Menglan
Published: April 2023

Brand building has achieved rapid development under the new development pattern of “Dual Circulation”, and service quality plays an important role in promoting brand efficient construction. Based on the support of China National Knowledge Network database and CiteSpace analysis software, this paper makes a quantitative analysis. Through the research of hot spots and evolution trend, it is found that the main extendable space of this topic is: The research direction of China will conform to the new development pattern of “Dual Circulation”, shift the main body of research to omni-channel integrated physical retail services, focus on the mode innovation of omni-channel integrated retail brand supply chain, explore its realization mechanism, and drive the construction and improvement of the new development pattern of dual circulation.
Analysis of Influencing Factors of Fertility Intention Based on Logistic Model
Authors: Li Xue
Published: April 2023

With the continuous opening of the fertility policy and the improvement of economic development level, the fertility level of the population continues to decline, and the natural growth rate of the population also continues to decline. Based on China's comprehensive social survey data, this article uses binary selection for regression analysis to find that fertility intention is related to individual factors, family factors, self-evaluation, and social factors. Among them, married, party members, agricultural household registration, high income, existing girls or boys, and social equity fertility intention are stronger, while higher education level and less willingness to pay medical insurance for fertility. The government can make corresponding decisions based on different influencing factors to improve fertility levels.
Study on the Coupling and Coordination of Transportation and Tourism Development in Weinan City
Authors: Liu Wenli , Zhao Qian , Tian Xiaoqi
Published: April 2023

Transportation infrastructure is the foundation of regional tourism development, the link between tourist sources and destinations, and the bridge to communicate with each region. Taking 11 districts and counties in Weinan as the research object, this paper analyzes the coupling and coordinated development level of transportation system and tourism system, focuses on the weak links of transportation infrastructure in tourism development, and puts forward optimization countermeasures and suggestions, so as to promote the integrated development of county transportation and tourism and enhance the overall competitiveness of Weinan. The research results show that the overall level of coupling coordination between transportation and tourism economic system in all districts and counties of Wei nan presents a significant unbalanced feature, showing a spatial pattern with hancheng city and Linwei districts as the double cores and decreasing to the periphery.
Research on Improving the Teaching Effectiveness of Table Tennis in Middle Schools under the Background of Teaching Psychology
Authors: Li Shibin , Aishah. Buang Nor
Published: April 2023

In contemporary society, the state attaches great importance to the ideological status and mental health of middle school students. Middle school students should establish a good outlook on life, values, and the world, all of which depend on correct table tennis education and mental health education. At present, due to significant changes in China's internal and international environment, there are many shortcomings in traditional education such as table tennis and mental health. Middle school teaching work is facing new challenges and pressures. We can organically combine the table tennis work of middle school students and improve their level of table tennis work. This article proposes the construction of a "table tennis psychology" health archive from the perspective of how to organically integrate table tennis work with mental health work for middle school students, in order to timely understand their ideological and mental health status.
Research on Unmanned Surveillance Equipment System in the Context of Urban Anti-terrorism
Authors: Yu Fanshan , Wu Qiwu
Published: April 2023

This article provides a comprehensive analysis and discussion on the demand, development status, existing problems, research strategies, and recommendations for ground unmanned equipment and unmanned reconnaissance equipment in urban environments. The study found that this equipment plays an important role in improving combat effectiveness, ensuring personnel safety, and reducing costs, but there are still some challenges in technology, safety, and law. The article proposes strategies and recommendations to strengthen technological research and innovation, enhance safety management and supervision, establish a sound legal system, reduce production costs, and strengthen talent cultivation and introduction to promote the healthy development of these equipment. It is hoped that this article can provide reference and inspiration for researchers and decision-makers in related fields and promote equipment modernization and national security development.
Comparison and optimization analysis of highway law enforcement agencies in the context of Sichuan and Chongqing integration
Authors: Xu Guangcan , Wang Ling
Published: April 2023

At present, Chongqing expressway operation has entered a new stage, and how to improve its operation and management effectiveness has become a new research topic. The article first summarizes and analyzes the development characteristics and experiences of Chongqing expressway management system, and points out that the development of China's expressway management system should not only strengthen the specialization of managers in various functional departments, but also establish a corresponding coordination and control mechanism to improve the efficiency of management; then, it focuses on comparing and analyzing the similarities and differences of expressway law enforcement in Chongqing and Sichuan in the context of Sichuan-Chongqing integration; Finally, countermeasure suggestions are made based on the opportunities and challenges of Chongqing expressways under the integration of Sichuan and Chongqing, which provide some reference values for decision-making bodies at Chongqing and Sichuan levels when formulating policies on expressway operation and management.
A Review of Research on Authorial Stance in Academic Discourse
Authors: Qu Feifei , Xiao Gengsheng , Chen Xin
Published: April 2023

The past decades have witnessed a mounting research attention on the authorial stance in academic discourse. Examining the use of stance features has become a key focus to explore the interactive and persuasive nature of academic writing. This review article aims to sort out the research development of authorial stance to figure out the important factors in stance making, which has some academic reference value for future research on how EFL writers project themselves in academic writing.
Quality Evaluation of Chinese Diabetes Management Guidelines based on AGREE II and AGREE-China
Authors: Hu Hanyi , Cai Dongxia , Zhao Yanjiao , Chen Yongfa
Published: April 2023

The purpose of this study is to verify the applicability of the Chinese clinical practice guideline evaluation tool (AGREE-China) by evaluating the diabetes mellitus (DM) guidelines, and to compare its characteristics with the clinical guideline research and evaluation tool II (AGREE II), in order to provide reference for clinical practice and subsequent revision of guidelines.
Flipped Classroom of Electrical and Electronic Technology based on Multisim Simulation
Authors: Zhang Mingliang , Pan Songzhe
Published: April 2023

In view of the phenomenon that traditional teaching focuses on Teachers' narration and theoretical derivation, and students passively accept knowledge points. This topic introduces the flipped classroom. The results show that under the flipped classroom teaching mode, students can internalize the knowledge learned before class in limited classroom time and output a visual Multisim Simulation circuit. The results show that the students' creativity, knowledge transfer ability and practical ability are stimulated when designing the circuit. At the same time, in order to solve the phenomenon that higher vocational students generally have poor learning initiative and do not carefully watch pre class teaching videos, this paper puts forward the calculation formula of mutual learning. Practice shows that under the supervision of the formula, students basically form the habit of mutual aid learning.
Two-parameter Optical Sensing Based on Multilayer Parity-time-symmetric Structure
Authors: Huang Xunqiang , Meng Ziming
Published: April 2023

A two-parameter sensor that can detect the variation of temperature and refractive index is realized in a multilayer dielectric structure obeying parity-time (PT) symmetry. The sensor can operate near exceptional points (EPs), which have been shown to provide dramatic variations of their eigenvalues in response to small parameter changes. The optical sensing behavior is theoretically investigated based on the transfer matrix method. The results show that the sensor can work within the surrounding temperature (tp) ranging from 0 to 30℃, and the refractive index (ng) of incident medium ranging from 1.0 to 1.4. The detectable variation △ng of the sensor can reach 0.02. The sensitivity of ng and tp can reach 372496.53 RIU-1 and 249.18℃-1, respectively. Our structures show great promise in temperature monitoring in cold environment and identification of chemical gases or liquids.
Correction Method of The Cross-type Tensor Based on DA-LM
Authors: Li Caihong , Zhang Song
Published: April 2023

Magnetic sensor tensor system detection is a weak magnetic target detection. It requires high accuracy for the tensor system. In order to solve the problems of non-orthogonal error, scale factor error, zero error and non-alignment error in tensor system, a tensor error correction method based on DA-LM algorithm is proposed. Using tensor rotation invariance and the principle of scalar correction, a mathematical model including non-orthogonal error, scale factor error, zero error and non-alignment error is established, and the DA-LM algorithm is used to solve the unknown parameters of the equations. This method can not only estimate the parameters accurately. It can also calibrate the observed data to the orthogonal coordinates. The validity of the method is verified by simulation analysis and experiment. The error is reduced from 2500 nT to 0.15 nT in the simulation analysis and from 11000 nT to 200 nT in the experiment, and finally the position error is reduced from 13.15 m to 2.3217 m, which further verifies the validity of the correction algorithm.
Fault Diagnosis of Wind Turbine Rolling Bearing Based on VMD-SG-ResNet
Authors: Zhen Chenggang , Liu Min
Published: April 2023

In view of the noise existing in the original vibration data, the VMD-SG noise reduction algorithm is proposed, and the fault diagnosis of wind turbine rolling bearing is realized by combining the two-dimensional gray image and ResNet. Firstly, VMD is used to decompose the original signal to get IMF components, and Savitzky-Golay filter is used to denoise the noisy components, and the denoised components and other components are reconstructed to get a pure signal.After the one-dimensional signal is converted into a two-dimensional image, a diagnosis model is built based on ResNet network. The experimental results show that the rolling bearing fault diagnosis based on the model has a high diagnosis accuracy.
Evaluation of the Importance of Ecological Protection in Xiahe County
Authors: Kang Can , Dang Guofeng , An Yanwen
Published: April 2023

The importance of ecological protection is a comprehensive index reflecting the importance of ecosystem structure and function in a region, including ecosystem service function and ecological vulnerability. This paper takes Xiahe County as an example, based on the GIS and RS platform, combined with its natural environment characteristics, selects the importance of water conservation, soil and water conservation, and biodiversity maintenance in the evaluation of the importance of ecosystem service functions. Among which, we select grassland degradation vulnerability assessment and soil erosion vulnerability assessment as the basic ways to assess the Ecological vulnerability. Finally, the evaluation results are integrated, the importance of ecological protection is obtained, and the extremely important and important areas of ecological protection are identified.
Dynamic Response Analysis of Buried Aviation Oil Pipeline Under Heavy Vehicle Load
Authors: Wang Tao , Li Gen , Hu Yi , Zhu Wei , Chen Ziyang , Wu Xiaodong , Zhang Hao
Published: April 2023

The risk of damage caused by the third party construction such as vehicle rolling is increasing day by day, which seriously threatens the production and operation of the aviation oil pipeline and the life and property safety of the people along the line. Based on the theoretical calculation model of vehicle rolling, the finite element models of pipeline, soil and pipe-soil are established respectively. At the same time, the moving load is loaded using the VLOAD subroutine, and the numerical simulation is carried out using ABAQUS. Finally, the influence of vehicle rolling load on the dynamic response of buried gas pipeline under different vehicle weight and speed conditions is analyzed. The research results have important guiding value for preventing the damage accident of aviation oil pipeline caused by vehicle crushing and guaranteeing the safe and smooth operation of aviation oil pipeline.
Appraisal of Agricultural Production Suitability Based on RS and GIS
Authors: An Yanwen , Li Wei , Kang Can
Published: April 2023

Based on the natural environment and land use status of agricultural production, the research on the suitability evaluation of agricultural production can provide a theoretical basis for the scientific spatial planning. This paper takes Xiahe County as the research area, based on RS and GIS, through the analysis of agricultural production in terms of water resource abundance, terrain, soil fertility, light and heat conditions, meteorological disaster risk, land concentration and contiguousness, etc., to improve the suitability evaluation of agricultural production System, carry out the suitability evaluation of agricultural production, and on this basis, scientifically evaluate the sustainable development of agriculture, and provide scientific basis for the sustainable and sustainable development of agriculture in Xiahe County.
A Preliminary Study on the Method of Refining Laboratory Safety Management in Engineering Universities
Authors: Wu Jianchuan , Liu Yuanru
Published: April 2023

University laboratories play an important role in the development of schools and the country's scientific and technological progress, but while universities attach importance to the output of results, safety management is easily neglected. Most engineering universities have a wide variety of laboratories, which makes management difficult and there is an urgent need to explore refined management methods to protect laboratory safety. Based on the author's actual work, this paper explores the classification and grading management methods in order to provide reference for other universities' laboratory safety management.
A Method for Calculating the Band Change of Gauss Projection Coordinates
Authors: Wu Shuai
Published: April 2023

In geodesy, many surveying projects are carried out on the plane, which requires the transformation of geodetic coordinates, the element on the ellipsoid, into plane coordinates, and each independent coordinate system has new contradictions due to zoning. Based on the basic geometric parameters and the mathematical description of the earth ellipsoid, this paper introduces the principle of Gauss projection method. Since Gauss Krueger projection is currently used in China, this paper introduces the principle and method of Gauss projection, and deduces the correlation between the Gauss plane coordinates (x, y) and the geodetic coordinates (L, (B)), that is, the forward and reverse calculation formulas of Gauss projection. With the help of Gauss projection as a communication "bridge", the coordinate transformation calculation is studied from geodetic coordinate transformation, and its advantages and disadvantages are compared with other methods. Based on the 1954 Beijing coordinate system and 1980 Xi'an coordinate system commonly used in China, a geodetic coordinate conversion system is compiled using C # language, and the forward and inverse calculation of Gaussian projection is realized.
Industrial Internet Data Collection and Processing Technology Research
Authors: Liu Luming , Yang Qingq , Zhu Zewei
Published: April 2023

With the rapid development of the Industrial Internet of Things, data acquisition and processing technology has become a research hotspot. This paper focuses on the industrial Internet data acquisition and processing technology. In view of the current situation and existing problems of industrial Internet data collection technology, such as slow transmission speed, low data quality, poor security, etc., from the three aspects of data transmission, data processing and data security. Specifically, the transmission mode based on the Internet of Things, distributed data processing technology and encryption algorithm and other technical means are adopted to improve the speed and quality of data transmission and ensure the data security. The research results of this paper provide reference and reference for the further development of industrial Internet data acquisition and processing technology, which has certain theoretical and practical significance.
Research and Development of Manufacturing Management System
Authors: Liu Luming , Yang Qingq , Zhu Zewei
Published: April 2023

MES system is an integrated information system integrating multiple functional modules, which is used to manage and monitor the production process and improve the production efficiency and quality. With the rapid development of the manufacturing industry, the manufacturing management system (MES) has become a key technology to improve the production efficiency and product quality of the manufacturing enterprises. In this paper, we deeply study and discuss the key technology and application of MES system. Through the design of the physical layer and software layer architecture of the MES system, including the overall system structure, database, functional module, system integration, etc., the development of the manufacturing management system (MES) is realized.
Design of Winding and Unwinding Control for High-speed Slitter
Authors: Pan Songzhe , Hu Jialiang , Xiao Kangwei , Liu Panpan , Chen Yu
Published: April 2023

The technical gap between China's slitter and some international brands in tension control is obvious, highlighting the shortcomings of unstable tension control, slow speed and low automation level. This paper is mainly about the research and analysis of the existing domestic slitter winding and unwinding technology, and analyzes the technical gap from the winding and unwinding system.
Research on Improvement Measures of Cementing Acoustic Amplitude Logging
Authors: Li Jian , Liu Zhidi
Published: April 2023

Cementing is one of the important aspects in the exploration and development of oil and gas fields, and the quality of cementing has a great impact on the life, production capacity and overall efficiency of a well. Due to the limitations of the evaluation technology and the complexity of the influencing factors, the conventional method of cementing quality evaluation currently used in China often leads to misjudgment of the quality of the cemented wells and can no longer meet the requirements of high accuracy research. By analyzing the factors affecting the solids quality testing and the advantages and disadvantages of several common solids quality evaluation methods, and organically combining them according to the measurement principles and their usage correlations, a system of evaluation methods applicable to different requirements is formed, and the intelligent evaluation of solids quality is further explored to provide a concrete and practical basis for solids quality evaluation in the development and production of oil fields.
Mathematical Modeling for Distribution Optimization of Senior High School Telephone Booths
Authors: Cui Ziming
Published: April 2023

Due to the policy of the Ministry of Education, many senior high schools in China have constructed some telephone booths. However, the survey found that the distribution of telephone booths in senior high school is irrational. Previous studies focused on the humanized design of telephone booths and the 0-1 planning optimization of charging pile location, but there were few studies on optimizing the distribution of phone booths in campus. It is necessary to optimize the distribution of telephone booths in senior high schools to facilitate students' life and save students' time. In this paper, Qingdao No. 2 Middle School in Shandong Province is taken as an example. Firstly, according to the previous research on 0-1 programming model, the number of people and demand in the distribution area of telephone booths in the campus are scored, and the scoring matrix is formed. Then 0-1 programming modeling was carried out and solved with Matlab. Finally, the optimal construction point to be built is obtained.
Study on Microseismic Activity Characteristics of Composite Coal Pillar in 21201 Coal Face of Hulusu Mine
Authors: Gao Yan , Wei Chunfu , Miu Xiaodong , Wang Zhiwen , Liu Zhi , Liu Chenyang , Jing Xinkun
Published: April 2023

Hulusu coal mine adopts “121 method” for back mining, and the coal pillar between adjacent workings is 30m. 21102 working have been mined for more than 3 years, leaving the auxiliary return airway has not been repaired for a long time which results in the serious deformation. If employs the adjacent 21201 workings to mine, the cost of reusing the 21102 auxiliary return airway is high. Therefore, the mine dug a new return airway 10m away from the mine, and forming a 45m composite coal column with double coal pillars and double return airways. Based on the ARAMIS M\E microseismic monitoring system, the spatial distribution characteristics of microseismic accidents near the composite coal pillar of 21201 coal face are studied, and explore the quantitative relationship among the retrieval rate of 21201 coal face, the frequency, and energy of microseismic accidents, which provided a theoretical basis and technical support for determining the scientific and reasonable retrieval rate of 21201 coal face.
A Survey of Crowd Counting Algorithm Based on Domain Adaptation
Authors: Wang Yanan , Luo Fen
Published: April 2023

Crowd counting, the task of estimating the number of individuals in a crowded scene, has gained increasing attention in computer vision research. However, crowd counting remains a challenging problem due to the complex and diverse nature of crowd scenes. In recent years, domain adaptation has emerged as a promising approach to improve crowd counting performance by adapting a pre-trained model to a target domain with different characteristics. This paper provides a survey of domain adaptation-based crowd counting algorithms, including their methods, datasets, and evaluation metrics. Overall, domain adaptation shows great potential in improving the accuracy and robustness of crowd counting algorithms, and further research in this direction is expected to lead to more effective and practical crowd counting solutions.
Design of Laser Quenching Equipment for Stainless Steel Dining Knife
Authors: Gao Feng , Cao Qipeng , Wu Xuhao , Jiang Miaolong
Published: April 2023

Based on the research of laser quenching technology of thin blade edge, the laser quenching equipment of stainless steel dinner knife is developed. According to the structure of stainless steel knife and quenching process layout, the feeding mechanism, positioning mechanism and feeding mechanism are designed to meet the functional requirements of laser quenching automatic operation, which has high practical value to solve the problem of automatic loading and unloading of tool and accelerate the production speed of tool.
Numerical Simulation Study of Static Fracture Technology of Borehole with Prefabricated Fracture
Authors: Cheng Gaoyu , Hou Zhiqiang , Li Mengzhuo
Published: April 2023

Because of the danger of blasting to local underground rock-breaking engineering, the construction under complex environment is realized by using prefabricated crack drilling and static crushing technology. In order to predict the crushing effect, based on the cohesion element method, different hole spacing, prefabricated fissure length and surrounding rock are selected to carry out the numerical simulation study of static crushing prefabricated fissure borehole, the prediction models of fracture pressure and initiation pressure are established.
Heavy Metal Content and Health Risk Assessment of Some Commercial Foods in Jiaozuo City
Authors: Liu Chang
Published: April 2023

In order to understand the pollution and health risks of heavy metals (HMs) such as Pb, Cd, Cr, As and Hg in the food of Jiaozuo city, samples of  cereals, beans and vegetables were collected from local markets. Based on the determination of HMs contents, single factor pollution index and Nemerow comprehensive pollution index were used to evaluate the pollution levels, and then the THQ model was used to assess the health risks induced by HMs to local residents through ingestion of these foods. The results showed that rice and corn samples were heavily and slightly polluted, respectively, with Hg contributing the most to the pollution index. The soybean and peanut samples were at a slight pollution level and alert level respectively. Edible fungus samples were at a slight pollution level, while the contents of HMs in all the other vegetable samples were at a safe level. Health risk assessment indicated that rice and edible fungi posed relatively high risks after long-term consumption. As and Hg contributed the most to the risk induced by rice, while Cd, Cr and As contributed the most to the risk of edible fungi. Beans showed no health risk. The health risk of HMs in all foods was higher to children than to adults.
Improving BaTiO3 Energy Storage Characteristics by Doping Bi(Mg2/3Ta1/3)
Authors: Qie Dan
Published: April 2023

With the continuous development of modern technology, the demand for energy storage materials is also increasing. Ferroelectric energy storage materials, as a new type of material with broad application prospects, have unique advantages in storing, transmitting, and converting energy. In this work, (1-x)BaTiO3-xBi(Mg2/3Ta1/3)ferroelectric ceramics were synthesized in a solid-state solution. The sample of x=0.18 (0.88BT-0.12BMT) has excellent energy storage density. The excellent energy density of 3.24J/cm3 at 260 kV/cm and the energy efficiency of 83 % at room temperature for 0.88BT-0.18BMT ceramics were achieved.
Synthetic Biology: From the Past to the Future
Authors: Wang Fei
Published: April 2023

Synthetic biology is a highly promising interdisciplinary field aimed at integrating knowledge and techniques from various disciplines to achieve precise control and manipulation of biological systems. Since the discovery of DNA structure by Watson and Crick in 1953, synthetic biology has undergone rapid development. During this time, synthetic biologists have developed numerous tools and technologies to better understand biological systems and to develop new methods for constructing and manipulating these systems. Initially, synthetic biology research was mainly focused on genetic engineering, with the primary goal of inserting artificially synthesized DNA into biological systems to achieve specific functions. However, over time, this field has become increasingly complex, and researchers have begun exploring broader issues, such as how to integrate biological and non-biological systems and how to use these systems for medical and environmental applications. In recent years, synthetic biology research has reached new heights, involving the construction of artificially synthesized genomes and cells, and how to apply these systems to medical, energy, and environmental fields. These research achievements offer enormous potential for treating diseases, reducing pollution, and producing clean energy. In addition, the development of synthetic biology also involves artificial intelligence and machine learning, which can help accelerate the design and construction of biological systems, thus speeding up the progress of synthetic biology. Although synthetic biology still faces many challenges, the development prospects of this field are still very promising with the continuous advancement of technology. This article aims to provide an overview of the development of synthetic biology, including its historical background, early development, technological advances, applications, ethical and social impacts, and future directions, and explore the development process of synthetic biology over the past 60 years.
Highway Tunnel Fire Traffic Control Plan
Authors: Liu Wang
Published: April 2023

Tunnel fire accidents occur from time to time, due to its special structure, will cause huge losses, this paper by studying the division of tunnel fire, put forward the principles and specific measures of traffic control, and carry out zoning control of tunnel fire traffic, and prepare a plan for the traffic control of the affected area and the fire tunnel area.
Application Research of Virtual Reality Technology in Intelligent Civil Aviation Airport Visual Management
Authors: Zhuo Peizhi
Published: April 2023

With the increasing development of science and technology, the increasing popularity of the Internet, and the increasingly widespread application of high-tech technology in various industries, profound changes have taken place in the operation mode of airports in China's civil aviation industry. Research on the development of smart civil aviation airports is also increasingly enriched. Airports are beginning to use information and intelligent technology to change their operating modes. From the current situation of China's civil aviation airport control, it is an unprecedented opportunity to apply VRT (Virtual Reality Technology) to the visual management of smart civil aviation airports. Utilize VRT to establish a real immersive visual management system that integrates operational dynamic display, virtual simulation, and simulation training that can be used for control and efficiency improvement based on the current situation of smart civil aviation airports. The system is mainly built through three-dimensional models that are highly close to the scene, thereby verifying and optimizing the operation mode of smart civil aviation airports, and obtaining the best scheme. Realized the application of VRT in the visual management of smart civil aviation airports.
Study on the Relationship Between High Commitment Human Resource Management, Job Autonomy and Job Satisfaction
Authors: Hu Chun
Published: April 2023

In order to explore the relationship between high commitment human resource management, job autonomy, and job satisfaction, a random questionnaire survey is conducted on 194 teachers in higher education institutions nationwide. SPSS24.0  is  used  in  methods   including   descriptive   statistical   analysis,  one-way analysis of variance, back testing, correlation analysis, regression analysis, and stepwise regression analysis. The following results are obtained: 1.High commitment human resource management and job autonomy were significantly and positively correlated; 2.High commitment human resource management is significantly and positively correlated with job satisfaction; 3.Job autonomy is significantly and positively correlated with job satisfaction; 4.High commitment human resource management and job autonomy are significantly different in terms of education. Job satisfaction is significantly different in terms of employee status and years of working. High commitment human resource management, job autonomy, and job satisfaction are significantly different in terms of school location (provincial capital, non-provincial capital); 5.Job autonomy plays a partially mediating role in  the relationship between high commitment huamn resource management and job satisfaction. In response to the results, it is suggested that Chinese higher education institutions should implement high commitment human resource management model to reasonably expand employees’ job autonomy and improve their job satisfaction according to the actual situation.
Comparative Analysis of Living Energy in Rural Areas of Tibet and Sichuan
Authors: Wan Li , Liu Chengpeng , LUOSONGZEREN  , Wang Wei , Liu Yue , SANGYONGLAMU  , Zhang Xiaoyu
Published: April 2023

This article conducted a survey of the pastoral areas of Naqu City, Tibet, Shigatse City, Tibet, rural areas of Linzhi City, Tibet, and rural areas of Heishui County, Sichuan. Due to the basically same lifestyle, the energy needs of rural farmers and herdsmen households are mainly used for cooking, heating, and household appliances, but are affected by different natural resources, climatic environments, and geographical locations enjoyed by different regions, This has led to differences in the proportion of energy demand in three aspects across regions, and there are significant differences between Tibet and Sichuan in terms of energy source methods.
Generalized Dirichlet Distribution Based on Confluent Hypergeometric Series
Authors: Zhao Ruixin , Liu Hongmei , Tang Yu
Published: April 2023

Dirichlet distribution is a kind of high-dimensional continuous probability distribution, which has important applications in the fields of statistics, machine learning and bioinformatics. In this paper, based on gamma distribution we study two two-dimensional random variables. Then we derive the properties of these two two-dimensional random variables by using the properties of non-central gamma distribution and confluent hypergeometric series. From these properties, we find the two random variables follow generalized Dirichlet distributions. Applying hypergeometric series to Dirichlet distribution broadens the research of Dirichlet distribution.