Promoting the Empowerment of Science and Technology to Ensure Food Safety Production:A Case Study of Huizhou City

The current situation of grain production in Huizhou City was analyzed firstly,and then the existing problems and challenges of grain safety production were pointed out,such as increases in the pressure to ensure grain safety production and the difficulty of stable development of grain production.Finally,several countermeasures and suggestions for the stable development of grain production were put forward.

Technological Capacity and Technology Catching-Up for Regulatory Mechanism of Sharing Economy Enterprises

Sharing economy developed soon in China recently.On the basis of analyzing technology spillover between a technologically advanced nation(country)and a less developed one,a technology catching-up model of technological capacity and path dependence is proposed based on Verspagen mode.The proposed model can explain how a less developed nation(country)can catch up the advanced one.It is not only to improve its own technological capacity,but also whether it could bread“the locking”of path dependence.For the less developed nation(country),the“conscious behavior”of economic body cannot be ignored to achieve the evolution from path dependence to path creation.Thus,the less developed nation(country)should cultivate the technology ability,furthermore,the creative realization and ability,which could break away the negative impact of technology to path dependence,and catch up the advanced one.

A study on service capacity of primary medical and health institutions for cervical cancer screening in urban and rural areas in China

Objective: To provide a decision-making basis for sustainable and effective development of cervical cancer screening.Methods: This cross-sectional study assesses the service capacity to conduct cervical cancer screening with a sample of 310 medical staff, medical institutions and affiliated township health centers from 20 countylevel/district-level areas in 14 Chinese provinces in 2016.Results: The county-level/district-level institutions were the main prescreening institutions for cervical cancer screening. More medical staff have become engaged in screening, with a significantly higher amounts in urban than in rural areas(P<0.05). The number of human papillomavirus(HPV) testers grew the fastest(by 225% in urban and 125% in rural areas) over the course of the project. HPV testing took less time than cytology to complete the same number of screening tasks in both urban and rural areas. The proportion of mid-level professionals was the highest among the medical staff, 40.0% in urban and 44.7% in rural areas(P=0.406), and most medical staff had a Bachelor’s degree, accounting for 76.3% in urban and 52.0% in rural areas(P<0.001). In urban areas, 75.0% were qualified medical staff, compared with 68.0% in rural areas, among which the lowest proportion was observed for rural cytology inspectors(22.7%). The medical equipment for cervical pathology diagnosis in urban areas was better(P<0.001). HPV testing equipment was relatively adequate(typing test equipment was 70% in urban areas, and non-typing testing equipment was 70% in rural areas).Conclusions: The service capacity of cervical cancer screening is insufficient for the health needs of the Chinese population. HPV testing might be an optimal choice to fill the needs of cervical cancer screening given current Chinese medical health service capacity.

Exploration of the dynamic water resource carrying capacity of the Keriya River Basin on the southern margin of the Taklimakan Desert,China

The water resource carrying capacity(WRCC)in river basin changes dynamically under climate change,economic development,and technological advancement.Climate change affects hydrological processes and spatial/temporal distribution of water resources;while economic develo-ment and technological advancement can also affect the balance of water resources systems.Under climate change,economic development,and technological advancement,itis of great significance to explore the dynamic behavior of WRCC in river basins.This will help to alleviate water resources security issues and build a sustainable water resources system.This study was carried out to evaluate the dynamic WRCC using the"climate,economics,and technology-control objective inversion mode",which used total water consumption,water-use efficiency,and restrained total pollutant control in the water functional area as boundary conditions.This study was conducted on the Keriya River Basin,a sub-catchment located in southem margin of the Taklimakan Desert.The WRCC in the Keriya River Basin in 2015 was calculated,and the trends in the short term(2020),middle tem(2030),and long term(2050)were predicted.The results revealed that climate change factors have a positive effect on WRCC in the Keriya River Basin,which leads to an increase in total water resources.Economic and technological development exhibits an overall positive effect,while increasing in water consumption and sewage discharge exhibit a negative effect.

Influences of Installment Tensioning Technology on Bearing Capacity of Rectangular Prestressed Concrete Beam

To obtain the relationship between use of installment tensioning technology and the bearing capacity of prestressed concrete beams, tensile and cyclic loading tests are conducted on five rectangular prestressed concreted specimens. Two types of prestressed tensioning methods are adopted in the tests, one uses installment tensioning technology to tension beams on days 4, 12, and 8, 12, respectively, and the other adopts the conventional method to tension the beam on day 28 only. The age of concrete, number of times tensioned, and the prestress value of early tensioning are considered in tests. Results show that use of installment tensioning technology has no effect on the bending failure pattern of prestressed concrete beams, but it reduces prestress loss and increases crack and yield loads.

Conductance and Capacity of Plain Lipid Membranes under Conditions of Variable Gravity

Biological cell membranes are complex structures containing mainly lipids and proteins. Functional aspects of such membranes are usually attributed to membrane integral proteins. However, it is well established that parameters of the lipid matrix are modifying the function of proteins. Additionally, electrical capacity and conductance of the plain lipid matrix of membranes are contributing directly to cellular functions as there is, for example, the propagation of action potentials. Accordingly the dependence of these parameters on changes of gravity might be important in the field of life sciences under space conditions. In this study consequently we have performed experiments in parabolic flight campaigns utilizing the patch-clamp technology to investigate conductance and capacity of plain lipid vesicle membranes under conditions of changing gravity. Both capacity and conductance were found to be gravity dependent. The changes in capacity could be contributed to changes in membrane geometry. Significant permeability in plain lipid membranes could be only observed at high potentials, where spontaneous current fluctuations occurred. The probability of these fluctuations was gravity dependent.

Research on the Elements of Firm's IS Absorptive Capacity

In this paper,we explore the capacity during the process of a firm's information system adoption and implementation from knowledge management perspective,based on a firm's level construct. According to the dimensions of absorptive capacity proposed by Zahra and George,we point out that the concept of IS absorptive capacity,analyze and summarize the elements of potential absorptive capacity and realized absorptive capacity. We use data from two manufacturing organizations,analyze two firm's realities of IS absorptive capacity. The study indicates differing antecedents may have differing effects on potential absorptive capacity and realized absorptive capacity.

Study on High Rate Discharge Performance and Mechanism of AB_5 Type Hydrogen Storage Alloys

The effects of surface treatment, particle size distribution,rare earth composition and B additive on the high rate discharge performance of hydrogen storage alloys were investigated. It is found that the activity, discharge capacity and high rate dischargeability of the alloys are improved after physical and chemical modification as a result of the increase of the surface area and formation of the electrocatalysis layers, which increase both the electrochemical reaction rate on the alloy surface and H diffusion rate in the alloy bulk. It is also found that both the over-coarse and over-fine particle size increase the contact resistance of the electrode, resulting in a decrease of discharge capacity, deterioration of high rate dischargeability and lower discharge plateau. In another word, a suitable particle size distribution can enhance the alloy activity, discharge capacity and high rate dischargeability. In addition, the high rate dischargeability is enhanced by increasing La content and decreasing Ce content of the alloy composition because of enlargement of the unit cell volume and the improvement of the surface activity. Moreover, B additive resultes in the formation of the second phase, and makes the alloys easier pulverization, which greatly improves the activity, discharge capacity and high rate dischargeability.

Absorptive Capacities for Sustainability Technologies:Perspectives from the BRICS and China

For the development process in the rapidly growing economies, knowledge transfer and technology cooperation are becoming important issues. Research and technological competences are key indicators for the absorptive capacity of sustainability technologies and for the ability to export them. These issues are analyzed empirically for Brazil, Russia, India, China and South Africa (BRICS). Sustainability related research in BRICS is mostly carried out within broader, more sector oriented programmes. Specialization patterns of international patents and in foreign trade indicate various strengths and weaknesses of the BRICS countries. The differences within the countries imply that the analysis must proceed at a technology specific level. China has considerable capabilities in technologies such as photovoltaics, solar thermal or buildings. There is a strong need for strategic positioning of the countries and for coordination of the various policy fields involved.

Problems of Agricultural Technological Innovation in China and Countermeasures

Major problems of agricultural technological innovation in China were summarized as below: first,poor agricultural science and technology system; second,deficient technological promotion system; third,shortage of agricultural professionals; fourth,serious shortage of science and technology input. In view of these problems,the following suggestions were given to improve the innovation of agricultural technology in China. ( 1) Restructuring agricultural research institutes,establishing cooperative innovation centers,improving agricultural technological innovation system; ( 2) Specifying the direction of research projects,improving scientific research level of technicians,so as to improve the agricultural technological innovation capacity; ( 3) Improving promotion and service stations in towns,organizing technological service teams of agricultural universities and colleges,establishing agricultural technological promotion systems; ( 4) Increasing input in agricultural technological innovation by attracting government input,enterprise investment and other financial support; ( 5) Cultivating more talents of agricultural technology,training leading agricultural technicians,grassroots agricultural service staff and practical talents.

Analysis of Nuclear Power Development in Henan Province Based on Carrying Capacity of Water Resources

Firstly, current situation of water resources in Henan Province was analyzed, and then carrying capacity of water resources in Henan Province was assessed based on ＂degree of water stress＂ and ＂balance index of carrying capacity of regional water resources＂, finally the thinking on adopting air-cooling technology to develop nuclear power in Henan Province was expounded.

Analysis of Impact Factors on Agricultural SMEs′ Technological Innovation Capacity——Case Study of Wenzhou City

The paper investigates impact factors of agricultural SMEs′ technological innovation by questionnaire on the survey of more than 100 agricultural SMEs of Wenzhou City of Jiangsu Province. It selects 14 major factors that influence agricultural SMEs′ technological innovation, they are capital source, enterprise culture, support from leaders, government policy support, effect of key research personnel, communication inside organization, enterprise strategy, technological development level, organizing and coordination inside organization, related information acquisition capacity, external cooperation, association and communication with consumers, change of external market and incentive measures to research personnel. Putting these factors in introductionance ordering by scores, we find out comparatively big impact factors influence agricultural SMEs′ technological innovation among them, they are technological development level, incentive measures to research personnel, capital source, government policy support and enterprise strategy. The paper also puts forward corresponding measures and suggestions: further enhance innovation consciousness and improve technological innovation level of agricultural SMEs; increase incentive measures, strengthen construction of talents team of technological innovation; express scientific research strength of local scientific research institutes and agricultural institution of higher learning, realize integration of industries, universities and research; sound government guiding and pushing mechanism, improve new policy environment of agricultural SMEs′ technological innovation.

The Myths and Facts of 5G

There has been a lot of talk in the industry about 5G recently; some stakeholders have even commented that there is too much hype around the topic in the absence of substance. Others have said there are already pre-commercial 5G systems available, pretending that the launch of 5G is near. Who is right?It's time to step back and take an objective look at some of the myths around 5G and clarify what 5G will really bring. We can do this now because despite some confusing public discussions it has become much clearer recently why 5G will be needed, what it will be, and how it will come to life.

大容量压缩空气储能系统空气透平工艺结构及运行特性研究

针对大容量(300MW级)蓄热式压缩空气储能系统的空气透平工作组,定量评估了高温方案(315℃)和中温方案(175℃)对透平的工艺流程结构和关键技术参数的影响,探讨了全工况下配气运行方式对透平性能的影响。研究表明,高温方案下透平工作组的工艺结构简单,但储换热系统的初投资高;高温方案的气耗率低,电电转化率高;节流+补气调节方式的高效运行区间最大。

数字技术赋能下产能共享企业数字化升级选择及影响因素研究

生产能力共享离不开平台和数字技术,基于数字技术赋能视角,分析围绕产能共享平台的制造企业数字化升级过程,构建产能共享企业实施数字化升级的演化博弈模型,探讨企业在实施数字化升级和不实施数字化升级两种情形下的演化稳定策略集,推断实施数字化升级的动态演化路径和主要影响因素,用Matlab对演化博弈模型进行模拟仿真,比较分析各参数变化对演化结果的影响。结果表明:潜在订单收益率、平台补贴系数、预期收益系数、升级投入风险系数、设备技术相似度以及订单损失成本等对博弈双方的策略演化结果有显著影响,并根据产能共享企业实际,提出相应建议,增强企业数字化信心。