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Temperature and Precipitation Suitability Evaluation for the Winter Wheat and Summer Maize Cropping System in the huang-huai-Hai Plain of China

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Agricultural Sciences in China 2011年第2期10卷 275-288页

作者： Nguyen Thanh Tuan QIU jian-jun Ann Verdoodt LI hu eric Van Ranst Vietnam National Museum of Nature Vietnamese Academy of Science and TechnologyHa Noi 0000Vietnam Key Laboratory of Resources Remote Sensing and Digital Agriculture Ministry of Agriculture/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural Sciences（CAAS）Beijing 100081P.R.China Laboratory of Soil Science Department of Geology and Soil Science（WE13）Ghent UniversityB-9000 GhentBelgium

The huang-huai-Hai Plain is the most important winter wheat and maize production region in *** response to the increasing population pressure,the Chinese authorities strongly invested in improving the irrigation systems and increasing ground and surface water exploitation within the plain to increase the crop *** resulted in a reduction of water resource availability and in turn indirectly affected the suitability of various agricultural ecosystems in the *** main purpose of this study was to review the suitability of temperature and precipitation for the winter wheat and summer maize cropping system in the huang-huai-Hai Plain,in order to provide a preliminary irrigation *** analysis provides a first attempt to enhance the water resource management as well as to increase the water use *** this aim,a GIS-based multicriteria analysis procedure has been developed consisting of（1） definition of objectives（evaluated entities） and database building;（2） definition of evaluation criteria;（3） standardization of the criteria;（4） combination of the criteria;（5） classification of the objectives;and（6） integration of the *** land suitability classification maps were transformed into maps of required irrigation amounts for each growing stage of the winter wheat and summer maize cropping *** study also exemplified the limitations and proposed future research activities that will improve the detail and accuracy of the evaluation results.

关键词： GIS multicriteria huang-huai-Hai Plain precipitation suitability irrigation

发展银发经济的战略设计、焦点难点及路径优化

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新疆师范大学学报（哲学社会科学版） 2025年第2期46卷 59-69,F0002页

作者：黄石松胡清中国人民大学国家发展与战略研究院北京100872 中国人民大学老年学研究所北京100872

我国正处于由中度老龄化社会步入重度老龄化社会的进程,银发经济将逐步从“以政府为主导的事业发展”阶段转向“事业和产业协同发展”的新阶段。准确把握这一转型发展特征,适时调整工作重心和节奏,注重运用市场机制推进产业发展迫在眉... 详细信息

我国正处于由中度老龄化社会步入重度老龄化社会的进程,银发经济将逐步从“以政府为主导的事业发展”阶段转向“事业和产业协同发展”的新阶段。准确把握这一转型发展特征,适时调整工作重心和节奏,注重运用市场机制推进产业发展迫在眉睫。对银发产业进行业态划分是制定产业组织政策、产业管理政策、产业发展政策的前提和基础,文本尝试将我国银发产业划分为基础性产业、延伸性产业和战略性产业,并据此分析三类产业在发展中存在的焦点难点问题,按照分类精准施策原则,提出优化我国银发经济发展路径的政策建议。

关键词：银发经济老龄产业老龄事业战略设计业态划分

Sprinkler irrigation system for tea frost protection and the application effect

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International journal of Agricultural and Biological Engineering 2016年第5期9卷 17-23页

作者： hu Yongguang Zhao Chen Liu Pengfei Asante eric Amoah Li Pingping Key Laboratory of Modern Agricultural Equipment and Technology Jiangsu UniversityZhenjiang 212013China College of Biology and the Environment Nanjing Forestry UniversityNanjing 210037China

A sprinkler irrigation system was designed and applied for a tea field to achieve frost protection through latent heat release when water turning into *** protection effects during night were tested at different irrigation application rates by monitoring air temperature around tea canopy(Tc).Temperature sensors were arranged at different distances from the *** preliminary results showed that,when the sprinkler system worked continuously at the application rate of 2-4 mm/h before sunrise,tea canopy was covered with ice and Tc remained around 0℃,preventing tea plants from frost *** no more temperature rise was obviously observed at the application rates above 4 mm/h,which means less cost *** system was stopped after sunrise when background air temperature rose back to 0℃and Tc increased by 2.2℃in one hour,while Tc of non-irrigated area increased by 4.8℃,which might cause thawing injuries to tea *** leaf surface temperature was lower than Tc,and the difference between the leaf surface temperature and Tc decreased with the increase of application ***,the sprinkler irrigation system could achieve tea frost protection,and the recommended application rate was 2-4 mm/h for better protection *** system should keep running throughout frost night till half an hour after *** start and stop of the sprinkler irrigation system should be controlled based on Tc.

关键词： sprinkler irrigation frost protection Camellia Sinensis L application rate temperature rise frost damage

Control system of a performance test-bed for frost protection wind machines

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维普期刊数据库

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International journal of Agricultural and Biological Engineering 2016年第6期9卷 36-43页

作者： hu Yongguang Liu Ping Asante eric Amoah Wu Wenye Li Pingping Key Laboratory of Modern Agricultural Equipment and Technology Jiangsu UniversityZhenjiang 212013China College of Biology and the Environment Nanjing Forestry UniversityNanjing 210037China

To test the performance and optimize operational parameters of various frost protection wind machines,a control system of performance test-bed was designed and developed based on Programmable Logic Controller(PLC)and touch *** system realized automatic control of operational parameters including hydraulic platform height,impeller rotation speed,depression angle,rotation range and *** case study results shows that the control accuracy of all the parameters was achieved with the average errors of 2.11 cm for height,9.5 r/min for impeller rotation speed,0.83°for pan-tilt rotation range and 0.061 min for rotation *** the control of the test-bed,the performances of various wind machines,such as the distribution of airflow and temperature,and frost protection effect,could be tested under various working conditions,which provide experiment supports for developing wind machines adapted to different conditions with higher frost protection effect.

关键词： frost protection wind machines performance test-bed design control PLC

The endosomal-lysosomal system: from acidification and cargo sorting to neurodegeneration

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维普期刊数据库

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Translational Neurodegeneration 2015年第1期4卷 141-150页

作者： Yong-Bo hu eric B Dammer Ru-jing Ren Gang Wang Department of Neurology&Neuroscience Institute Ruijin Hospital affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200025China Department of Biochemistry Center for Neurodegenerative DiseasesEmory University School of MedicineAtlantaGA 30322USA

The endosomal-lysosomal system is made up of a set of intracellular membranous compartments that dynamically interconvert,which is comprised of early endosomes,recycling endosomes,late endosomes,and the *** addition,autophagosomes execute autophagy,which delivers intracellular contents to the *** of endosomes and/or autophagosomes into a lysosome creates an unique acidic environment within the cell for proteolysis and recycling of unneeded cellular components into usable amino acids and other biomolecular building *** the endocytic pathway,gradual maturation of endosomes into a lysosome and acidification of the late endosome are accompanied by vesicle trafficking,protein sorting and targeted degradation of some sorted *** opposing sorting systems are operating in these processes:the endosomal sorting complex required for transport(ESCRT)supports targeted degradation and the retromer supports retrograde retrieval of certain *** endosomal-lysosomal system is emerging as a central player in a host of neurodegenerative diseases,demonstrating potential roles which are likely to be revealed in pathogenesis and for viable therapeutic *** we focus on the physiological process of endosomal-lysosomal maturation,acidification and sorting systems along the endocytic pathway,and further discuss relationships between abnormalities in the endosomal-lysosomal system and neurodegenerative diseases,especially Alzheimer’s disease(AD).

关键词： The endosomal-lysosomal system Neurodegeneration Acidification ESCRT Retromer Alzheimer’s disease

Digitizing Dunhuang Cultural Heritage:A User Evaluation of Mogao Cave Panorama Digital Library

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维普期刊数据库

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journal of Data and Information Science 2017年第3期2卷 49-67页

作者： Xiao hu eric M.Y.Ho Chen Qiao Faculty of Education The University of Hong Kong

Purpose： This study is a user evaluation on the usability of the Mogao Cave Panorama Digital Library （DL）, aiming to measure its effectiveness from the users＇ perspective and to propose suggestions for improvement. Design/methodology/approach： Usability tests were conducted based on a framework of evaluation criteria and a set of information seeking tasks designed for the Dunhuang cultural heritage, and interviews were conducted for soliciting in-depth opinions from participants. Findings： The results of the usability tests indicate that the DL was more efficient in supporting simple information seeking tasks than those of higher-complexity levels. Statistical tests reveal that there were correlations among dimensions of usability criteria and user effectiveness measures. Moreover, interview discourses exposed specific usability issues of the DL. Research limitations： This research is based on a relatively small sample size, resulting in a limited representativeness of user diversity. A larger sample size is needed for a systematic cross group comparison. Practical implications： This study evaluated the usability of the Mogao Cave Panorama DL and proposed suggestions for its improvement for better experience. The results also provide a reference to other cultural heritage DLs with panorama functions. Originality/value： This study is one of the first evaluating cultural heritage DLs from the perspective of user experience. It provides methodological references for relevant studies： the evaluation framework, the designed information seeking tasks, and the interview questions can be adopted or adapted in evaluating other visually centric DLs of cultural heritage.

关键词： Mogao Caves Cultural heritage Usability Dunhuang Panorama digital library

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聚光光伏冷却系统的实验研究

太阳能学报 2014年第10期35卷 2030-2035页

作者：杜斌 eric hu Mohan Kolhe 东南大学能源与环境学院南京210096 Adelaide大学机械工程系伦敦大学能源与资源学院

加工聚光太阳电池组件系统及其强制水冷装置并对其进行实验研究,采集一天中该电池的温度、发电功率、效率等数据,与固定安放的太阳电池进行对比。实验结果显示,聚光太阳电池在测量时段内的输出电功率始终明显大于固定太阳电池,采用水冷... 详细信息

加工聚光太阳电池组件系统及其强制水冷装置并对其进行实验研究,采集一天中该电池的温度、发电功率、效率等数据,与固定安放的太阳电池进行对比。实验结果显示,聚光太阳电池在测量时段内的输出电功率始终明显大于固定太阳电池,采用水冷的聚光太阳电池的温度基本在60℃以下,此外,还分析冷却水流量对聚光太阳电池热效率和电效率的影响。

关键词：太阳能聚光太阳电池水冷效率

Microstructural evolution of a heat-treated H23 tool steel

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International journal of Minerals,Metallurgy and Materials 2015年第3期22卷 272-284页

作者： Meilinda Nurbanasari Panos Tsakiropoulos eric j.Palmiere Department of Mechanical Engineering Institut Teknologi Nasional Department of Materials Science and Engineering The University of Sheffield

The microstructure and the stability of carbides after heat treatments in an H23 tool steel were investigated. The heat treatments consisted of austenization at two different austenizing temperatures （1100℃ and 1250℃）, followed by water quenching and double-aging at 650℃, 750℃, and 800℃with air cooling between the first and second aging treatments. Martensite did not form in the as-quenched micro- structures, which consisted of a ferrite matrix, M6C, M7C3, and MC carbides. The double-aged microstructures consisted of a ferrite matrix and MC, M6C, M7C3, and M23C6 carbides. Secondary hardening as a consequence of secondary precipitation of fine M2C carbides did not occur. There was disagreement between the experimental microstructure and the results of thermodynamic calculations. The highest double-aged hardness of the H23 tool steel was 448 HV after austenization at 1250℃ and double-aging at 650℃, which suggested that this tool steel should be used at temperatures below 650℃.

关键词： tool steel microstruc^ral evolution heat treatment carbides stability hardness

Fabrication of sharp silicon hollow microneedles by deep-reactive ion etching towards minimally invasive diagnostics

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Microsystems & Nanoengineering 2019年第1期5卷 292-302页

作者： Yan Li Hang Zhang Ruifeng Yang Yohan Laffitte Ulises Schmill Wenhan hu Moufeed Kaddoura eric j.M.Blondeel Bo Cui Department of Electrical and Computer Engineering University of Waterloo200 University Avenue WestWaterlooON N2L 3G1Canada ExVivo Labs Inc. 3 Regina Street NorthWaterlooON N2J 2Z7Canada

Microneedle technologies have the potential for expanding the capabilities of wearable health monitoring from physiology to *** paper presents the fabrication of silicon hollow microneedles by a deep-reactive ion etching(DRIE)process,with the aim of exploring the feasibility of microneedle-based in-vivo monitoring of biomarkers in skin *** devices shall have the ability to allow the sensing elements to be integrated either within the needle borehole or on the backside of the device,relying on capillary filling of the borehole with dermal interstitial fluid(ISF)for transporting clinically relevant biomarkers to the sensor *** modified DRIE process was utilized for the anisotropic etching of circular holes with diameters as small as 30μm to a depth of>300μm by enhancing ion bombardment to efficiently remove the fluorocarbon passivation ***,isotropic wet and/or dry etching was utilized to sharpen the needle due to faster etching at the pillar top,achieving tip radii as small as 5μ*** sharp microneedles have been demonstrated to be sufficiently robust to penetrate porcine skin without needing any aids such as an impact-insertion applicator,with the needles remaining mechanically intact after repetitive *** capillary filling of DRIE-etched through-wafer holes with water has also been demonstrated,showing the feasibility of use to transport the analyte to the target sites.

关键词： sharp needle utilized