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Changes of ecological conditions induced by rock tunneling in Laoshan Mountain area
LI Xiaozhao, ZHAO Xiaobao, WANG Zhongsheng
《结构与土木工程前沿(英文)》 2008年 第2卷 第4期 页码 366-370 doi: 10.1007/s11709-008-0056-0
关键词: supplement fragmentation reference tunneling activity vegetation situation
Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG
《环境科学与工程前沿(英文)》 2015年 第9卷 第2期 页码 279-287 doi: 10.1007/s11783-014-0667-8
关键词: riparian vegetation patterns soil nutrient distribution nutrient loss management
Yang Yu,Ting Hua,Liding Chen,Zhiqiang Zhang,Paulo Pereira,
《工程(英文)》 doi: 10.1016/j.eng.2023.07.012
关键词: Vegetation greenness Vegetation productivity Rainfall use efficiency Sensitivity Yellow River Basin
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
Jie HAN,Jun GUO
《结构与土木工程前沿(英文)》 2017年 第11卷 第1期 页码 56-65 doi: 10.1007/s11709-016-0380-8
关键词: erosion geosynthetic stabilization sustainability vegetation
《环境科学与工程前沿(英文)》 2022年 第16卷 第8期 doi: 10.1007/s11783-022-1523-x
• In sediments, the transformation of sulfides may lead to the release of heavy metals.
关键词: Coastal wetland Heavy metal Sulfur Biogeochemical cycle
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
关键词: Xinjiang current development Mongolia Autonomous southeast coastal Autonomous
Current situation and challenge of registry in China
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《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
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
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
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
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
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
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
吴贵辉
《中国工程科学》 2011年 第13卷 第4期 页码 4-8
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。
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
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。
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
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.
标题 作者 时间 类型 操作
Changes of ecological conditions induced by rock tunneling in Laoshan Mountain area
LI Xiaozhao, ZHAO Xiaobao, WANG Zhongsheng
期刊论文
Effects of riparian vegetation patterns on the distribution and potential loss of soil nutrients: a case
Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG
期刊论文
Divergent Changes in Vegetation Greenness, Productivity, and Rainfall Use Efficiency Are Characteristic
Yang Yu,Ting Hua,Liding Chen,Zhiqiang Zhang,Paulo Pereira,
期刊论文
Geosynthetics used to stabilize vegetated surfaces for environmental sustainability in civil engineering
Jie HAN,Jun GUO
期刊论文
Sulfur mediated heavy metal biogeochemical cycles in coastal wetlands: From sediments, rhizosphere to vegetation
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
Antimicrobial use in food animal production: situation analysis and contributing factors
Ziping WU
期刊论文