Optimization Countermeasures Research Articles

Research on the Curriculum System of Big Data Technology and Applied Specialty in Higher Vocational Colleges

With the rapid development of information technology industry, the demand for big data, artificial intelligence and cloud computing posts is increasing in many industries. Higher vocational colleges should actively train information technology talents. In order to promote the reform of big data technology and application curriculum system and improve the ability of talent training in higher vocational colleges, this paper analyzes the characteristics of big data technology and application specialty, the problems in curriculum system construction and the optimization countermeasures.

On the Problems and Countermeasures in the Development of Corporate Statistical Management

<p>Under the guidance of market economy, Chinese enterprises have developed vigorously in recent years. Based on this, the amount of data in daily operation and management of enterprises has been continuously increased. Corporate managers have paid more attention to enterprise statistics to fully understand the development of enterprises, thus effectively promoting the effective exploration and optimization of corporate statistics. However, a large number of practices have indicated that there are some deficiencies in the statistical management of enterprises in China, which in turn limits the optimization of the statistical work of enterprises. Hence, in order to further meet the needs of corporate statistical work, relevant staff should actively reflect on statistical work and formulate corresponding optimization strategies. This article analyzes the current situation of statistical management in Chinese enterprises, and puts forward corresponding optimization countermeasures, aiming at further promoting the quality of statistical work.</p>

Problems and Countermeasures in the Process of Architecture and Design of Enterprises

<p>Researchers say that in recent years, driven by economic development, China’s construction engineering industry has developed vigorously. In this process, with the emergence of a large number of construction projects, the attention of all sectors of society to the quality of construction projects has been continuously improved. To solve this problem, as the main designer and builder of the project, the construction enterprises should actively analyze and explore the construction and design work according to the actual situation of the project, so as to effectively improve the comprehensive ability of their own engineering buildings and lay a foundation for further improvement and optimization of the engineering quality. In this study, the researchers explored and thought about the main problems existing in the design and construction of architectural engineering in China. In the process, the researchers put forward corresponding optimization countermeasures for related problems with their own professional knowledge, aiming at further improving and optimizing the comprehensive quality of architectural engineering.</p>

Measurement for overcapacity and its influencing factors on the construction industry-evidence from China's provincial data.

Achieving "Responsible Consumption and Production" is one of the 17 sustainable development goals set by the United Nations. Controlling overcapacity is an important guarantee in order to achieve this goal. There are many types and large quantities of raw materials in the construction industry, which easily leads to overcapacity. Studying the problems related to overcapacity in the construction industry helps to understand the formation mechanism of overcapacity in related industries. This puts forward targeted countermeasures and suggestions for the capacity resolution to achieve green and sustainable development. Based on this, this paper uses the construction industry capacity utilization data of the Shandong Province in China from 2005 to 2017. It also uses the production function method to construct a construction industry overcapacity calculation model to estimate the construction industry capacity utilization and overcapacity rate in Shandong Province. The DEA method was used to construct an extraction model of influencing factors for overcapacity. The results show that the capacity utilization ratio for Shandong Province from 2005 to 2016 was 81.98%. There was no overcapacity as a whole, but there were large fluctuations in capacity utilization for some time periods. Suggestions for optimization countermeasures were also proposed.

Analysis of Problems and Optimization Countermeasures in the Transformation of Scientific Research Achievements in Universities

In the era of the macro-knowledge economy, together with the reform of marke operation mechanism, social development has become increasingly dependent on innovative technology, and it plays an important role in national strategic deployment. As the main base of scientific and technological innovation and scientific research development in our country, colleges and universities have become more diversified in their role positioning. Successful scientific research incubation will contribute to the release of their social functions and achieve self-sustainable development simultaneously. Based on the brief analysis of the problems in the transformation of scientific research achievements in colleges and universities, this article focuses on exploring the corresponding optimization strategies.

Grounding Behavior and Optimization Analysis of Electric Multiple Units in High-Speed Railways

In high-speed railways (HSRs), the overvoltages and overcurrents of train body (TB) are two critical issues for the grounding safety and reliable operation of the electric multiple units (EMUs). Running of EMUs inevitably encounters all kinds of electromagnetic transient scenarios, resulting in unfavorable surges on the TB. To restrain the surges, some grounding optimization countermeasures, such as adding groundings, have been proved to be effective for some scenarios but easily bring more rail currents into TB. Besides, only one or two operational scenarios are focused on the previous optimization design. Therefore, this article implements the grounding behavior and optimization analysis stemming from more comprehensive consideration. Typical EMUs are taken as an instance for establishing the accurate vehicle-grid models of all kinds of scenarios. Using EMTP simulations, both the TB voltages and TB currents in different grounding layouts and grounding resistances are analyzed and compared, focusing on each scenario. An optimization scheme is designed according to the comparison results. Finally, the Gini coefficient approach and entropy weight method are first applied to demonstrate the validity of optimization design, with the aim to suppress both the electromagnetic transient surges on TB and the return currents of entering TB to the maximum degree.

Analysis on the Influencing Elements and Optimization Countermeasures of New Energy Vehicles’ Consumer Satisfaction—Analysis Based on Internet Online Review Mining

With the rapid development of the Internet, more and more consumers are used to posting their own purchase reviews on online platforms, and automotive consumers are no exception. New energy vehicles have been regarded as one of the methods to improve energy and environmental issues, and have received attention from countries around the world. The Chinese government has also vigorously supported the new energy vehicle industry. However, in the process of green innovation, new energy vehicle manufacturers do not understand consumers’ satisfaction with new energy vehicles. Therefore, in this paper, the online review of new energy vehicles is used as the research object, and the text mining method is used to analyse and research the online reviews of new energy vehicles to provide effective suggestions for new energy vehicle manufacturers in terms of green innovation.

Economic Development Advantages of Low-Carbon Economy under Waterway Transportation

With the continuous deepening of economic development, ecological hidden hazards such as environmental pollution are gradually emerging. Global warming, over-exploitation of energy, land desertification, and other problems are emerging. It is urgent to grasp the direction of national environmental protection policy support, and take the advantages and disadvantages of low-carbon economy development as the primary merit index for industry development.Firstly, this paper expounds the internal relationship between water transport and low-carbon economy. Then it objectively examines and analyzes the difficulties and reasons of the development of waterway transportation economy in low-carbon economy. Next, it is pointed out that the water transport system under the background of low-carbon economy is an inevitable choice. Finally, the paper summarizes the advantages of the economic development of waterway transportation, and puts forward the corresponding optimization countermeasures according to the actual situation, which provides an effective guarantee for deepening the low-carbon behavior of transportation.

Optimization and Innovative Countermeasures of Ideological and Political Work in Colleges and Universities Based on COVID-19’s Epidemic Situation

Optimization and Innovative Countermeasures of Ideological and Political Work in Colleges and Universities Based on COVID-19’s Epidemic Situation

新时代大学生民族团结教育的现状和优化对策

新时代大学生民族团结教育的现状和优化对策

Construction of Industry-University-Research-Application System under the Background of Mass Entrepreneurship and Innovation Education

In recent years, entrepreneurship and innovation education has become an important theme in the reform and deepening of China’s education system. Based on the analysis of the current situation of China’s economic reform and social development, this paper fully analyzes and verifies the practical significance of entrepreneurship and innovation education, as well as the curriculum content, education system, application system and other practical problems existing in the existing development. Combined with the policy guidance and the main resource advantages of all parties, this paper puts forward the optimization countermeasures and suggestions on the construction of the production, teaching, research and application system of the entrepreneurship and innovation education and the application level of the educational achievements, so as to provide some reference for the development and deepening of China’s entrepreneurship and innovation education.

Research on Application-oriented Undergraduates’ Satisfaction of Cross-Border E-Commerce Practical Teaching Courses ——Taking Specialty Group on Cross-border E-commerce in Qianjiang College as an Example

With the rapid development of cross-border e-commerce, its personnel training has become a major focus of professional teaching and reform in colleges and universities. It is of great practical value to study the practice teaching issues on cross-border e-commerce for application-oriented undergraduate colleges and universities. Starting with the curriculum design of cross-border e-commerce specialty group in schools, this paper studies five factors influencing students' satisfaction with cross-border e-commerce practical teaching curriculum, analyses the shortcomings of current practical teaching curriculum design, and puts forward the optimization countermeasures for improving students' satisfaction with practical teaching curriculum design.

Ecological pattern of urban forest landscape of Ji'nan City, China

The ecological pattern research on urban forest landscape is the foundation and premise of urban forest system planning and urban ecological construction, as well as an important way of optimizing urban spatial structure, giving full play to urban forest ecological function and creating ecological and livable environment. Ecological pattern of urban forest landscape in built-up area of Ji'nan city was quantitatively analyzed and the corresponding optimization countermeasures were put forward through quantitative analysis and gradient analysis of the overall landscape ecological pattern by RS and GIS technology with 10 landscape indices at patch level and landscape level. The results showed that urban forest coverage rate in built-up areas was 15.8%. At the landscape level, the overall landscape ecological pattern of urban forest showed following patterns: relatively complete types of urban forest landscape patches, greater degree of landscape fragmentation, different area of various types of urban forest, large major patches, and highly connected same patch types. At the level of patch type, the ecological public welfare forest was dominated by large patches. The shape of scenic recreational forest was regular and dominated by large and medium patches. The shape of road forest and subsidiary forest was complex and dominated by small patches. The production and management forest was lacking. At the level of patch type, landscape recreational forest was the dominant type, ecological public welfare forest patch area was the largest, road forest and ancillary forest fragmentation was large. At the level of landscape, urban central forest landscape fragmentation was large, human interference was serious, and landscape shape was complex. Based on the analysis of the ecological pattern of urban forest landscape, we proposed the construction scheme of Ji'nan urban forest ecological network, which was "one ring, two networks, three four axes, and multi-point chessboard". Such scheme would help strengthen the connectivity of various types of urban forests and exert overall ecological benefits of large-scale ecosystems.

Heuristic swarm intelligent optimization algorithm for path planning of agricultural product logistics distribution

In the current agricultural product consumption market, the consumer’s demand for agricultural products tends to be diversified and individualized, and they need stricter links of cold chain logistics distribution of agricultural products. The cold chain logistics of fresh agricultural products is also the business of high energy consumption and high carbon emission in the logistics industry. The contradictory relationship between it and the “low-carbon economy” advocated today leads to the necessity to consider the relationship between economic benefit and environmental impact in the process of rapid development. Based on this, this paper, from the perspective of low-carbon economy, based on the analysis of the necessity of optimizing the distribution path of cold chain logistics of agricultural products, constructs a model for this and puts forward a swarm intelligence optimization algorithm-particle swarm optimization (PSO) algorithm. The algorithm is improved from inertia weight, convergence factor, learning factor, and population size and so on. The optimized PSO algorithm is compared with the traditional PSO algorithm. Finally, the simulation results show that the improved algorithm can be used to optimize the distribution path of cold chain logistics of agricultural products effectively, and the specific optimization countermeasures are put forward according to the actual situation.

Research on the traffic organization optimization countermeasures in highway service area under the abnormal condition

In order to effectively improve the utilization rate and service turnover rate of highway service area, and make the traffic flow more smoothly, this paper studies the transportation organizations under special circumstances, such as extreme weather, natural disasters, holiday peak trips and other special situations. Traffic organization optimization countermeasures are proposed from three aspects: controlling the total amount of traffic, optimizing the internal organization and improving the departure rate. The result can provide reference for the construction and optimization of service area in the future.

基于生态网络的山水林田湖草生物多样性保护研究——以广西左右江为例

PDF HTML阅读 XML下载 导出引用 引用提醒 基于生态网络的山水林田湖草生物多样性保护研究——以广西左右江为例 DOI: 10.5846/stxb201905311144 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金项目（41571173，41771207）；国家重点研发计划项目（2016YFC0502103） Biodiversity conservation of mountains-rivers-forests-farmlands-lakes-grasslands using an ecological network: A case study on the Zuoyoujiang river basin in Guangxi Province, China Author: Affiliation: Fund Project: The National Natural Science Foundation of China；National Key Research and Development Project 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:“山水林田湖草是生命共同体”的理念强调生态系统的整体性，反映了自然界各生态系统之间的联系，表明对生态环境的治理要建立在系统论的思想方法上，怎样将“山水林田湖草”的理论思想落实到具体的地区已成为生态保护与修复的关注热点。生态网络的构建不仅可以连接破碎生境，而且能够综合考虑生态系统的各个要素，因此，以广西左右江流域为例，选取保护区作为生态源地，结合最小累积阻力模型（MCR，minimum cumulative resistance）和整体连通性指数（IIC，integral index of connectivity），分析潜在生态廊道的结构组成以及源地重要性，探讨研究区潜在生态网络“山水林田湖草”空间分布。研究结果表明：通过构建生态网络识别出69条潜在生态廊道，但在研究区中部没有可利用的廊道，导致明显的南北阻隔；在51个源地斑块中，仅有3个斑块的重要性指数大于0.2，景观整体连通性较低；通过廊道景观构成的分析发现，耕地占廊道面积比例达20.28%，仅次于自然林地（74.16%），说明耕地对生态网络的构建有重要影响。最后通过廊道与道路的叠加选取9个关键生态节点和23个断裂点，并提出相应的修复和优化对策。研究结果可为广西左右江流域生物多样性保护提供方法和建议，同时作为对“山水林田湖草”生态保护与修复的探索，能够为今后类似研究提供参考。 Abstract:The existence of mountains-rivers-forests-farmlands-lakes-grasslands systems emphasizes the need for ecosystem integrity and reflects the relationships among natural ecosystems. Thus, ecological protection and restoration methods should be based on the system theory. This study focuses on the ecological protection and restoration of mountains-rivers-forests-farmlands-lakes-grasslands systems in specific regions. An ecological network allows the connection of fragmented habitats and aids the understanding of various elements of an ecosystem. Therefore, using the Zuoyoujiang River basin in Guangxi Province, China as an example, this study selected protected areas as ecological sources, analyzed the structure of potential ecological corridors and the importance of ecological sources using a combination of the minimum cumulative resistance and integral index of connectivity (IIC) models, and discussed the spatial distribution of potential mountains-rivers-forests-farmlands-lakes-grasslands ecological networks. A total of 69 potential ecological corridors were identified; however, there were no available corridors in the central part of the study area, which resulted in an obvious north-south barrier. Among the 51 source patches, only 3 patches had an IIC greater than 0.2, and the overall connectivity of the landscape was poor. Analysis of the corridor composition indicated that the proportion of cultivated land was 20.28%, second only to that of natural forest land (74.16%). Thus, cultivated land has a considerable effect on the construction of ecological networks. A total of 9 key ecological nodes and 23 breakpoints were selected through the superposition of corridors and roads, and corresponding restoration and optimization countermeasures were suggested. The results of this study provide insights into biodiversity conservation in the Zuoyoujiang River basin in Guangxi. Further, this study acts as a preliminary exploration for the ecological protection and restoration of mountains-rivers-forests-farmlands-lakes-grasslands ecosystems and will act as a reference for such studies in the future. 参考文献 相似文献 引证文献

Vortex structures and aeroacoustic performance of the flow field of the pantograph

The object of study in this paper is the Faiveley CX-PG pantograph. We first used the large-eddy simulation (LES) model to simulate the surrounding fluctuating flow field. We then identified the vortex structures in the flow field of the pantograph via the Q criterion, and performed a Fourier transform on the fluctuating pressure. We finally used the Ffowcs Williams-Hawkings (FW-H) equation to predict the far-field radiation noise of the pantograph. Through these steps, we explored the vortex structures in the flow field of the pantograph, aeroacoustic performance of the pantograph's main components, and the relationship between them, and proposed corresponding acoustic optimization countermeasures. The results showed that the vortex structures in the flow field of the pantograph varied with time and had a certain periodicity, and that the sound source intensity of the pantograph was mainly distributed in the bottom frame, three insulators, balance beam, upper arm frame, and lower arm. The sound source energy of these components accounted for approximately 92% of the total energy; the influencing factors for the aerodynamic sound source intensity of the pantograph included the shedding positions and vorticities of the vortex structures as well as whether it was located in the wake of the vortex structures. The aerodynamic noise of the pantograph could be effectively controlled by adjusting the vortex shedding position, reducing the vorticities of the vortex structures, increasing the distance between the mutually interfering components, setting the diversion structure to control the discharge area of the vortex structures. The sound source energy of the bottom frame area accounted for more than 50% of the total energy; a settlement platform or shroud could be installed to effectively control the noise in the area, thereby effectively reducing the noise radiated by the pantograph. The simulation results in this paper were in good agreement with the wind tunnel test results and theoretical results, and can provide a reference for the optimal design of future acoustics for the pantograph.

Sleep optimization to prevent sleep loss

Sleep loss is a main factor in the decrease of military performances observed during continuous and sustained operations. Sleep loss in humans is associated with cognitive function impairments, hormonal and immune-inflammatory responses, which may have clinical relevance. This thematic session focus on strategies proposed as protective countermeasures during and/or before sleep loss. Through a transdisciplinary approach, speakers will show the cognitive and physiological benefits of sleep optimization countermeasures (work/rest schedules, sleep extension, nap improvement, etc.) in order to prevent sleep-loss induced impairments. Results from field study related to identification of best Work and Rest Schedules in army and navy will be presented and discuss. Before operations, sleep extension could improve tolerance to sleep loss. Benefice and limits of sleep extension will be presented through cognitive, hormonal and immune-inflammatory point of view, from two studies in laboratory. Then, the last speaker will show an original work related to the improvement of naps in occupational settings, with hypnotic suggestions.

Study on the Space Design of Urban Commercial District in Cold Areas

The contents of space design for urban commercial district in cold areas were analyzed, that include spatial scales, space environment, space node, space interface, linear space etc. On the basis of analysis and survey, the problems of spatial scales, environmental facilities, space form, interface processing, transportation organizations and etc. which exist in the space design were analyzed. Finally, the optimization countermeasures of space design are proposed, which include layout, organization of traffic stream line, spatial form, characteristic expression, environmental design and other aspects of commercial district in cold areas.

Fatigue Optimization Scheduling in Graduate Medical Education: Reducing Fatigue and Improving Patient Safety

Medical error is a major cause of preventable morbidity and mortality. Resident fatigue is likely to be a significant contributor. We calculated and compared predicted fatigue impairment in surgical residents on varying schedules by using the validated Sleep, Activity, Fatigue, and Task Effectiveness model and Fatigue Avoidance Scheduling Tool; we identified specific times of day and rotations during which residents were most affected, instituted countermeasures, and measured the predicted response. We compared 4 scheduling patterns: day shift, trauma shift, night shift, and prework hour restriction Q3 call (or every-third-night call). The dependent variables were mean daily effectiveness while at work and the percentage of time residents worked with critical fatigue impairment (defined as an effectiveness score of less than 70 correlated with an increased risk for error and a blood alcohol content of 0.08). Fatigue countermeasures (ie, a 30-minute nap, eliminating 24-hour shifts) were applied to rotations with significant impairment to determine impairment plasticity. CALCULATED MEAN EFFECTIVENESS SCORES AND PERCENTAGE OF TIME SPENT IMPAIRED AT WORK WERE AS FOLLOWS: day shift, 90.3, 0%; trauma shift, 82.0, 7.5%; prework hour restriction Q3 call shift, 80.7, 23%; and night shift, 68.0, 50% (P < .001). Fatigue optimization countermeasures for night shift rotation improved mean daily effectiveness to 87.1 with only 1.9% of time working while impaired (P < .001). There is a significant potential for fatigue impairment in residents, with work schedule a significant factor. Once targeted, fatigue impairment may be minimized with specific countermeasures. Fatigue optimization tools provide data for targeted scheduling interventions, which reduce fatigue and may mitigate medical error.