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China’s Engineering Education: Situation & Outlook

Zhu Gao-feng

《工程管理前沿(英文)》 2014年 第1卷 第1期   页码 105-112 doi: 10.15302/J-FEM-2014010

摘要: Since China's drive in 1978 to implement national reforms and open it up to the outside world,its higher education sectorhas made rapid progressin the field of engineering and has been able to achieverapid expansion of scale,Positive change in educational structure,more education investment, improved teaching quality, Educational reform and international cooperation. While praising the achievements,we need toacknowledgethat there are also some problems in China's engineering education, asimbalancebetweensupplyanddemand,homogeneity of goals and patterns, Lack of practice,curriculum system not aligned with the characteristics of engineering,insufficient importance attached to innovation and entrepreneurial education, Poor competence mix.In light of China's process of modernization and the Outline, we forecast that:competition between universities will intensify and the supply-demand imbalance will be alleviated, differentiation depends on the reform of engineer system and administrative university classification,quality of engineering education will be improved with a complete quality assurance system,industrial transformation will be conducive to joint talent development by universities and businesses,instructors will be the mainstay of educational reform,quality of students should be improved in many different ways. As China's modernization accelerates, the quality of its engineering education is getting better and better. We expect to work closely with foreign colleagues to improve the quality to turn out engineering talents meeting the demand of national development.

关键词: engineering     education     situation     outlooks    

Current situation and development of wind power in China

BAO Nengsheng, NI Weidou

《能源前沿(英文)》 2007年 第1卷 第4期   页码 371-383 doi: 10.1007/s11708-007-0056-4

摘要: The current development of wind power in China was presented in this paper. Many regions such as Xinjiang Uygur Autonomous Region, Inner Mongolia Autonomous Region and southeast coastal region, etc. in China have abundant wind energ

关键词: Xinjiang     current development     Mongolia Autonomous     southeast coastal     Autonomous    

Current situation and challenge of registry in China

null

《医学前沿(英文)》 2014年 第8卷 第3期   页码 294-299 doi: 10.1007/s11684-014-0355-x

摘要:

Increasing emphasis has been placed on registries for an organized system used in developing clinical research to improve health care. China has sufficient data that can be applied broadly, but the heterogeneity and irregularity of registries limit their applicability. This article aims to describe the status of registries in China and the related challenges. Patient registries for observational studies were retrieved from the International Clinical Trials Registry to quantitatively evaluate the number of comparatively high-quality registries in China. A literature search was also performed to provide support and updates. A total of 64 patient registries were retrieved from ClinicalTrials.gov using disease, product, and health service as criteria. The sample sizes ranged from 15 to 30 400, with only 12 registries marked as completed. This article describes and compares the detailed information in many aspects. The efficient use of registries has already made considerable progress in China; however, registries still require standardization, high-quality transition, and coordinated development.

关键词: observational study     Chinese     registry study     patient registries    

Impact of renewable energies on the operation and economic situation of coal fired power stations: Actualsituation of coal fired power stations in Germany

Hans-Joachim KRAUTZ, Alexander LISK, Joachim POSSELT, Christian KATZER

《能源前沿(英文)》 2017年 第11卷 第2期   页码 119-125 doi: 10.1007/s11708-017-0468-4

摘要: Due to the fluctuating character of the renewable energy sources the demand of conventional power plants for flexibility is increasing. In the recent years, in Germany there has been a fast rise of production capacity of renewable energies, especially from wind turbines, photovoltaic installations, and biomass plants. The installed nominal power of wind turbines is actually (December 2016) 42 GW and of photovoltaic installations 40?GW. The renewable electric energy production in Germany is about 190?TWh/a, which represents a share of 33% of the yearly demand. The increased need for flexibility affects both the power gradients as well as the minimum load of conventional power plants. Due to this flexibility behaviour, conventional power plants are faced with problems concerning the durability of power plant components, corrosion, more maintenance effort and consequently the overall life expectancy. Another consequence of the increasing share of renewable energies is the decreasing full load operating hours, especially of coal fired and gas power plants. Along with decreasing revenues from the energy exchange market, coal fired power plants are faced with new economically challenges.

关键词: flexible load operation     minimal load     power gradients     power plant maintenance     corrosion     life expectancy    

Present situation and classification of piezoelectric pump

Fang YE, Shouyin WANG, Wei CHENG, Qixiao XIA, Jianhui ZHANG,

《机械工程前沿(英文)》 2009年 第4卷 第4期   页码 420-429 doi: 10.1007/s11465-009-0052-7

摘要: According to the present classification method for a piezoelectric pump, this paper reviews the development and present situation of piezoelectric pumps in the latest 30 years and finally puts forward a new classification. A volumetric piezoelectric pump, which belongs to traditional volumetric pumps, can be divided into a piezoelectric pump with or without valves. A new valveless piezoelectric pump nowadays becomes a hot issue in scientific research. It is constructed by using no-moving-part valves, which can induce positive flow resistance and negative flow resistance different, and in which the inlet and outlet are connected all the time. New forms of piezoelectric pumps, different from traditional ones, are only at the stage of conception and principle, and no practical application has been reported.

关键词: piezoelectric pump     development and present situation     new classification method     valveless piezoelectric pump     new forms of piezoelectric pump    

The current phosphate recycling situation in China and Germany: a comparative review

null

《农业科学与工程前沿(英文)》 2019年 第6卷 第4期   页码 403-418 doi: 10.15302/J-FASE-2019287

摘要:

Phosphorus (P) is an indispensable element for organisms but the primary source of P—mineral phosphate resources—are non-renewable. Agricultural production has a high demand for fossil phosphate resources, but the resulting phosphate-rich residues are lack of management. This leads to rapid reserves depletion and severe phosphate pollution risks. One sustainable way is to reuse the phosphate dispersed in various residues such as sewage sludge and livestock manure. Diverse techniques have emerged to recover phosphate from wastes to close the phosphate cycle. While it is a global issue, the regional situations regarding potential phosphate scarcity and its management differ strongly. China is rich in phosphate resources, but over-exploitation has greatly increased the risk of phosphate rocks depletion, while in Germany the P resources depend on imports, but there is commitment to keep a balance between import and utilization. This had led to great differences in the way the two countries deal with the “re-use” of phosphate in waste. China is now in a transition phase from the simple terminal pollution control to “waste” reuse and nutrient resources recycling. One sign of this tendency is the mandatory garbage classification and preparation for further processing and recycling. This was first implemented in Shanghai in 2019, whereas Germany has been following the legal framework for waste management since the 19th century. There are a series of laws to control the nutrient loss from municipal and agricultural activities, as for instance with sewage sludge ordinance and fertilizer legislation. Many of these laws have been newly revised recently. Sewage sludge cannot be directly utilized on farmland as organic fertilizer any more. Alternatively, phosphate and other nutrients should be recovered from sewage sludge. Advanced phosphate recovery technologies and related nutrient recycling schemes are proceeding. This review summarizes the current situation of phosphate-containing residues management and phosphate reuse in China and Germany. The state legislation and policies, which would affect the phosphate recycling concept are presented as well. As there are various kinds of phosphate-containing residues, different phosphate recovery technologies can be applied. Those technologies are discussed from their mechanism and suitability.

关键词: phosphate recovery     manure     sewage sludge     ordinances     technologies    

Antimicrobial use in food animal production: situation analysis and contributing factors

Ziping WU

《农业科学与工程前沿(英文)》 2018年 第5卷 第3期   页码 301-311 doi: 10.15302/J-FASE-2018207

摘要:

By measuring the quantity and ways in which antimicrobials are used, and reviewing different technical and socioeconomic factors influencing antimicrobial use at farm level, this study discusses the main knowledge gaps in antimicrobial use in food animal production and provides recommendations for future research and policy development. The review reveals that antimicrobial use in food animals exhibit strong regional and species differences, and there are still large information gaps concerning the current state of antimicrobial use. Factors associated with animal health (including antimicrobial resistance), animal health improvement, economic costs and benefits relevant to animal diseases, and potential technological alternatives or alternative systems all have an impact on antimicrobial use on the farm. There is a clear need to resolve the data gap by monitoring antimicrobial use and developing an analytical framework to better understand farmer behaviors under different technical, economic and environmental circumstances.

关键词: antimicrobial use     drivers for antimicrobial use     food animal production    

我国能源形势及发展对策

吴贵辉

《中国工程科学》 2011年 第13卷 第4期   页码 4-8

摘要:

总结了近年来我国能源发展取得的成绩,研究分析了我国能源发展面临的形势和挑战,提出了当前和今后一个时期能源工作的主要任务。特别强调保证能源安全供应是能源战线的一项首要任务、基本任务和长期任务,同时要大力节约能源,调整优化能源结构,加快能源科技自主创新,扩大能源国际合作,推动能源科学发展,为经济社会健康、持续、协调发展提供保障。

关键词: 能源     能源现状     能源问题     能源任务    

中国食用油安全战略转变:国内条件与国际情景

马文杰

《中国工程科学》 2016年 第18卷 第1期   页码 42-47 doi: 10.15302/J-SSCAE-2016.01.006

摘要:

食用油料成为我国对国际市场依存度最大的大宗农产品,是造成农产品国际贸易逆差的主要成因。国产植物油料的大量进口对国家粮食与食物安全、居民消费甚至国民经济均产生较为重要的影响。在新的粮食安全战略下,我国食用油作物面积增长空间有限、兼用油源生产潜力巨大,但转化为现实产量困难重重,未来消费量将进一步增加。在国产植物油料大量进口新常态下,世界食用油生产潜力巨大、我国具有从世界市场稳定获取食用油料的能力、食用油料供给安全外部环境复杂。针对新的国内条件与国际情景,论文给出我国新的食用油安全战略:维持能力、保留基准、积极进口、健康消费。

关键词: 食用油     国内条件     国际情景     生产潜力     战略转变    

Middle East respiratory syndrome coronavirus: current situation and travel-associated concerns

null

《医学前沿(英文)》 2016年 第10卷 第2期   页码 111-119 doi: 10.1007/s11684-016-0446-y

摘要:

The emergence of Middle East respiratory syndrome coronavirus (MERS-CoV) in 2012 brought back memories of the occurrence of severe acute respiratory syndrome coronavirus (SARS-CoV) in 2002. More than 1500 MERS-CoV cases were recorded in 42 months with a case fatality rate (CFR) of 40%. Meanwhile, 8000 cases of SARS-CoV were confirmed in six months with a CFR of 10%. The clinical presentation of MERS-CoV ranges from mild and non-specific presentation to progressive and severe pneumonia. No predictive signs or symptoms exist to differentiate MERS-CoV from community-acquired pneumonia in hospitalized patients. An apparent heterogeneity was observed in transmission. Most MERS-CoV cases were secondary to large outbreaks in healthcare settings. These cases were secondary to community-acquired cases, which may also cause family outbreaks. Travel-associated MERS infection remains low. However, the virus exhibited a clear tendency to cause large outbreaks outside the Arabian Peninsula as exemplified by the outbreak in the Republic of Korea. In this review, we summarize the current knowledge about MERS-CoV and highlight travel-related issues.

关键词: coronavirus     MERS     Middle East respiratory syndrome    

Will Germany move into a situation with unsecured power supply?

Harald SCHWARZ

《能源前沿(英文)》 2019年 第13卷 第3期   页码 551-570 doi: 10.1007/s11708-019-0641-z

摘要: Together with a huge number of other countries, Germany signed the Paris Agreements in 2015 to prevent global temperature increase above 2°C. Within this agreement, all countries defined their own national contributions to CO reduction. Since that, it was visible that CO emissions in Germany decreased, but not so fast than proposed in this German nationally determined contribution to the Paris Agreement. Due to increasing traffic, CO emissions from this mobility sector increased and CO emission from German power generation is nearly constant for the past 20 years, even a renewable generation capacity of 112 GW was built up in 2017, which is much higher than the peak load of 84 GW in Germany. That is why the German National Government has implemented a commission (often called “The German Coal Commission”) to propose a time line: how Germany can move out of coal-fired power stations. This “Coal Commission” started its work in the late spring of 2018 and handed over its final report with 336 pages to the government on January 26th, 2019. Within this report the following proposals were made: ① Until 2022: Due to a former decision of the German Government, the actual remaining nuclear power generation capacity of about 10 GW has to be switched off in 2022. Besides, the “Coal Commission” proposed to switch off additionally in total 12.5 GW of both, hard coal and lignite-fired power plants, so that Germany should reduce its conventional generation capacity by 22.5 GW in 2022. ② Until 2030: Another 13 GW of German hard coal or lignite-fired power plants should be switched off. ③ Until 2038: The final 17 GW of German hard coal or lignite-fired power plants should be switched off until 2038 latest. Unfortunately the “Coal Commission” has not investigated the relevant technical parameter to ensure a secured electric power supply, based on German’s own national resources. Because German Energy Revolution mainly is based on wind energy and photovoltaic, this paper will describe the negligible contribution of these sources to the secured generation capacity, which will be needed for a reliable power supply. In addition, it will discuss several technical options to integrate wind energy and photovoltaic into a secured power supply system with an overall reduced CO emission.

关键词: CO2 reduction     mobility sector     renewable generation     coal commission     secured power generation capacity     reliable power supply     power-to-gas     power-to-heat    

Current situation and development of prenatal diagnosis in China

Xu-Ming BIAN, Qi GUO, Qing-Wei QI

《医学前沿(英文)》 2010年 第4卷 第3期   页码 271-274 doi: 10.1007/s11684-010-0100-z

摘要: Prenatal screening and diagnosis are major methods for control of birth defects, which is a very important problem in China. Here, we review current situation and development of prenatal screening and diagnosis in mainland China, including prenatal screening and prenatal diagnosis of fetal chromosome abnormalities, non-invasive prenatal diagnostic techniques and prenatal diagnosis of monogenic diseases, polygenic disease and congenital metabolic diseases. We also discuss epidemiology of birth defects and genetic diseases in China and related ethical issues of prenatal diagnosis.

关键词: prenatal diagnosis     prenatal screening     China    

Current situation and future perspectives of European natural gas sector

Vincenzo BIANCO,Federico SCARPA,Luca A. TAGLIAFICO

《能源前沿(英文)》 2015年 第9卷 第1期   页码 1-6 doi: 10.1007/s11708-014-0340-8

摘要: Gas market in Europe is experiencing a radical change for different reasons, partially determined and accelerated by economic downturn of the last period. In the past few years, many European countries adopted energy policies largely based on the utilization of natural gas. In fact, a sharp increase of the demand was observed and, at the same time, a lot of infrastructures were developed to assure the necessary supply. In the last few years, due to the economic downturn, natural gas demand decreased, causing a consistent oversupply on the market, which altered the consolidated dynamics of the sector. Understanding the changes currently under development in the European gas market is of paramount importance in order to design future strategies for the sector; in particular, it is necessary to understand if the present situation will cause a reshaping of the sector.

关键词: natural gas     natural gas market     oil-linked contracts     supply infrastructures     gas hubs    

精细爆破发展现状及展望

谢先启

《中国工程科学》 2014年 第16卷 第11期   页码 14-19

摘要:

“精细爆破”作为一个有别于传统“控制爆破”的概念,被认为是工程爆破发展新阶段的标志。简要介绍了精细爆破的定义、内涵和技术体系,以及自提出以来在我国的应用与发展现状。关于精细爆破的未来发展,建议从4 个方面开展研究:加强多学科的基础理论研究,为精细控制炸药爆炸能量的释放和定量化爆破设计提供理论支撑;以爆破对象的数字化研究与应用为切入点,开展精细爆破与信息化技术的融合研究;加强数值模拟精细化研究,为爆破方案的优化和爆破危害效应预测预报提供更有力的技术手段;加强精细爆破施工现代化和标准化建设。

关键词: 精细爆破     现状     信息化     标准化     展望    

The Development Situation, Future and Counter Measures of Remanufacturing Industry in China

Wen-qiang Liu,Jun-yuan Mo,Cheng-kui Gu

《工程管理前沿(英文)》 2016年 第3卷 第2期   页码 123-131 doi: 10.15302/J-FEM-2016021

摘要: Currently, resource supply and demand contradiction, and over-loaded environment capacity have become a bottleneck for sustainable economic development in China. Electro-mechanical products are approaching a peak of obsolescence, and massive abandoned electro-mechanical products are causing severe environmental pollution, huge waste of resources and potential safety hazard. Remanufacturing is repairing or modifying worn mechanical products using high-tech method, which buffers the contradiction between wasting and shortage of resources, and brings industry towards a comprehensive utilization of resource and environmental protection. As a new strategic industry, remanufacturing, which is highly coherent with the development strategy of the circular economy, is still in its infancy in China. This paper analyzes the developmental trends and problems of the remanufacturing industry in China, and proposes promoting measures based on the engineering practices of remanufacturing.

关键词: remanufacturing     industry     measures     development    

标题 作者 时间 类型 操作

China’s Engineering Education: Situation & Outlook

Zhu Gao-feng

期刊论文

Current situation and development of wind power in China

BAO Nengsheng, NI Weidou

期刊论文

Current situation and challenge of registry in China

null

期刊论文

Impact of renewable energies on the operation and economic situation of coal fired power stations: Actualsituation of coal fired power stations in Germany

Hans-Joachim KRAUTZ, Alexander LISK, Joachim POSSELT, Christian KATZER

期刊论文

Present situation and classification of piezoelectric pump

Fang YE, Shouyin WANG, Wei CHENG, Qixiao XIA, Jianhui ZHANG,

期刊论文

The current phosphate recycling situation in China and Germany: a comparative review

null

期刊论文

Antimicrobial use in food animal production: situation analysis and contributing factors

Ziping WU

期刊论文

我国能源形势及发展对策

吴贵辉

期刊论文

中国食用油安全战略转变:国内条件与国际情景

马文杰

期刊论文

Middle East respiratory syndrome coronavirus: current situation and travel-associated concerns

null

期刊论文

Will Germany move into a situation with unsecured power supply?

Harald SCHWARZ

期刊论文

Current situation and development of prenatal diagnosis in China

Xu-Ming BIAN, Qi GUO, Qing-Wei QI

期刊论文

Current situation and future perspectives of European natural gas sector

Vincenzo BIANCO,Federico SCARPA,Luca A. TAGLIAFICO

期刊论文

精细爆破发展现状及展望

谢先启

期刊论文

The Development Situation, Future and Counter Measures of Remanufacturing Industry in China

Wen-qiang Liu,Jun-yuan Mo,Cheng-kui Gu

期刊论文