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| 1 | 超(超)临界汽轮机汽缸紧固螺栓高温蠕变断裂研究显示文摘超(超)临界汽轮机汽缸以镍基超高温合金作为紧固件材料,螺栓蠕变损伤的研究对超(超)临界机组的安全运行及维修具有重要意义。对镍基合金Nimonic 80A进行了550℃不同应力下单轴及空心螺栓的蠕变实验,引入应变阈值,结合Norton-Bailey-Kachanov蠕变方程,改进了蠕变损伤模型,模型能更准确描述蠕变全过程;修改有限元软件ABAQUS子程序,模拟了空心螺栓的蠕变过程。结果表明,空心螺栓蠕变断裂并不是在应力集中的螺纹处,而是在螺杆处,有限元计算结果与实验结果吻合较好。 | 徐鸿 郑善合 MAILE Karl | 2007 | 中国电机工程学报2007，27，29： | 18 |
| 2 | Plant Surfaces:Structures and Functions for Biomimetic Innovations显示文摘An overview of plant surface structures and their evolution is presented. It combines surface chemistry and architecture with their functions and refers to possible biomimetic applications. Within some 3.5 billion years biological species evolved highly complex multifunctional surfaces for interacting with their environments: some 10 million living prototypes(i.e., estimated number of existing plants and animals) for engineers. The complexity of the hierarchical structures and their functionality in biological organisms surpasses all abiotic natural surfaces: even superhydrophobicity is restricted in nature to living organisms and was probably a key evolutionary step with the invasion of terrestrial habitats some 350–450 million years ago in plants and insects. Special attention should be paid to the fact that global environmental change implies a dramatic loss of species and with it the biological role models. Plants, the dominating group of organisms on our planet, are sessile organisms with large multifunctional surfaces and thus exhibit particular intriguing features.Superhydrophilicity and superhydrophobicity are focal points in this work. We estimate that superhydrophobic plant leaves(e.g., grasses) comprise in total an area of around 250 million km^2, which is about 50% of the total surface of our planet. A survey of structures and functions based on own examinations of almost 20,000 species is provided, for further references we refer to Barthlott et al.(Philos. Trans. R. Soc. A 374: 20160191, 1). A basic difference exists between aquatic nonvascular and land-living vascular plants; the latter exhibit a particular intriguing surface chemistry and architecture. The diversity of features is described in detail according to their hierarchical structural order. The first underlying and essential feature is the polymer cuticle superimposed by epicuticular wax and the curvature of single cells up to complex multicellular structures. A descriptive terminology for this diversity is provided. Simplified, the functions of plant surface characteristics may be grouped into six categories:(1) mechanical properties,(2) influence on reflection and absorption of spectral radiation,(3) reduction of water loss or increase of water uptake, moisture harvesting,(4) adhesion and nonadhesion(lotus effect, insect trapping),(5) drag and turbulence increase, or(6) air retention under water for drag reduction or gas exchange(Salvinia effect). This list is far from complete. A short overview of the history of bionics and the impressive spectrum of existing and anticipated biomimetic applications are provided. The major challenge for engineers and materials scientists, the durability of the fragile nanocoatings, is also discussed. | Wilhelm Barthlott Matthias Mail Bharat Bhushan Kerstin Koch | 2017 | Nano-Micro Letters2017，9，2： | 16 |
| 3 | 超(超)临界汽轮机汽缸紧固螺栓疲劳-蠕变断裂的研究显示文摘调峰机组频繁调整负荷,汽轮机汽缸紧固螺栓处于疲劳-蠕变交互作用,对紧固螺栓多轴应力下疲劳-蠕变损伤的研究对调峰机组安全运行和维修具有重要意义。该文对镍基合金Nimonic80A进行了550℃下单轴及空心螺栓的疲劳?蠕变断裂实验,应用Chaboche-Nouaihas模型,用有限元软件ABAQUS模拟了空心螺栓的疲劳?蠕变过程。结果表明,与空心螺栓的纯蠕变断裂不同,疲劳?蠕变断裂发生在应力集中的螺纹处,有限元计算结果与实验结果吻合较好。 | 徐鸿 郑善合 MAILE Karl | 2007 | 中国电机工程学报2007，27，32： | 7 |
| 4 | New type of transverse moving box mechanism for pot seedling transplanting machine显示文摘The existing moving box mechanism pot seedling transplanting machine on the market moves too fast when the picked seedling is collected,which negatively impacts the seedling picking performance.In order to improve the performance,two types of variable speed continuous moving box schemes were designed in this study.The first scheme was to apply a spiral-gear moving box spiral shaft with sine curve characteristics in the box moving mechanism,whereas the second one was to change the circular gear in the moving box into an elliptical gear with a speed shifting transmission mechanism.The working mechanism of the mechanical structure was analyzed,and the kinematic model was established.A dynamic analysis of the slider mechanism was performed.A virtual prototype was established according to agronomic parameters,and the virtual prototype experiments were conducted in ADAMS.The physical prototype and the high-speed photography experiment were performed on the test bench of a transplanting machine frame.The theoretical analysis,virtual prototype and physical prototype test results were consistent,which verified the validity of the theoretical model,virtual prototype and physical prototype and ensured the feasibility of the system. | Maile Zhou Zhengyu Hua Jingyuan Wang Lei Wang Yun Zhao Daqing Yin | 2018 | International Journal of Agricultural and Biological Engineering2018，11，2： | 7 |
| 5 | National Public Health Surveillance in China: Implications for Public Health in China and the United States显示文摘Study Objective:Throughout the world, political developments have brought new demands to communities to prevent and intervene in the incidence of infectious and noninfectious conditions.Historically, these developments have required new and more effective public health surveillance ac tivities. This report describes public health surveillance practice in the People’s Republic of China,making comparisons with selected aspects of surveillance in the United States with respect to collec tion, analysis, diasemination, and use of data. Main results: In both the People’s Republic of China and the United States, political change has affected health, and multiple surveillance system are used in public health practice. Surveillance of acute infectious diseases based on the reporting of legally notifiable diseases and the use of vital records for surveillance have the longest established history in both countries. In both countries, da ta from the surveillance systems have been used to affect public health policy.Conclusions: In comparing surveillance practices in there countries, we find similarities in con ditions reported and in the dissemination of the data. At the same time, legal, aseial, cultural, and economic differences between the nations have affected the practice of surveillance in analysis and evaluation. We make explicit recommendations for improvement and evaluation of systems in both countries including sentinel surveillance system and data quality measures in China and computer networking and data analysis in the United | YANG GONG-HUAN DONNA F. STROUP AND STEPHEN B. THACKER (Institute of Epidemiology and Microbiology, Chinese Academy of Preventive Medicine, 27 Nan Wei Rd., Beijing 100050, China Epidemiology Program Office (Mail Stop C08 ),Centers for Disease Control | 1997 | Biomedical and Environmental Sciences1997，10，1： | 4 |
| 6 | THE BENCHMARK LAND PRICE SYSTEM AND URBANLAND USE EFFICIENCY IN CHINA显示文摘ABSTRACT: China began to introduce market principles and establish price mechanism to better manage land and improve land use efficiency in the late 1980s. Since then, land markets begin to emerge. A benchmark land price system, providing guidelines for land use rights selling and transferring, was established in order to overcome lack of market data and experiences in land transaction. The benchmark prices of land use rights are determined by land use, land use density (floor-land ratio), land grades, land improvement, and tenant resettlement costs. This paper first conducts a formal analysis based on modern urban economic theory. The formal model provides a theoretical foundation in which the benchmark land price system is assessed and evaluated in terms of land use and urban development. The paper then concludes that the benchmark price system has two theoretical problems. One is associated with the fact that floor-land ratio plays an important role in land price determination whereas the theory suggests the other way around. That is, floor-land ratio depends on land prices. The other problem is that the benchmark land price system does not provide adequate room for the substitution between land and capital inputs. The substitution is a key in achieving land use efficiency in land markets and urban development process. It is concluded that the practice of the benchmark land price system is at odd with reforms that aim to introduce market principles and mechanism to guide resource uses. Therefore, it is recommended that further land policy reform should be taken. | DING Cheng-ri(Department of Landscape Architecture and Urban Planning, Texas A &M University, Mail Stop 3137College Station, TX, 77843, USA) | 2001 | Chinese Geographical Science2001，11，4： | 4 |
| 7 | Resistance of ex vivo expanded CD3+CD56+ T cells to Fas-mediated apoptosis显示文摘 | Michael R. Verneris Martin Kornacker Volker Mail?nder Robert S. Negrin | 2000 | Cancer Immunology, Immunotherapy2000，，6： | 3 |
| 8 | Theoretical analysis and development of a mechanism with punching device for transplanting potted vegetable seedlings显示文摘Several studies have indicated that potted vegetable seedling transplanting technology can greatly improve the ability of vegetable seedlings to resist cold,flood,drought,saline-alkali and pests.The existing transplanting equipment mostly adopts mechanical,electrical and hydraulic integration technologies with a complex structure and a high cost.To address the problems of the complex structure and low efficiency of existing transplanting equipment,a rotary transplanting mechanism for potted vegetable seedlings was developed through configuration analysis and optimization design.Through kinematic analysis of the transplanting mechanism,optimization design software was developed,and the parameters were optimized.A mechanism was developed for picking,transporting,hole punching and transplanting potted vegetable seedlings.The virtual simulation results showed that the maximum error of attitudes of the transplanting arm is less than 1.19°and that of the hole punching shovel is less than 1.7°.In this study,perforation,seedling harvesting and transplanting experiments were conducted through a bench test.The results showed that the specific trajectory and attitude of the potted vegetable seedlings transplanting mechanism conformed to the requirements of potted vegetable seedling transplantation and the success rate of seedling picking was 92.4%,which verified the correctness and feasibility of the rotary potted vegetable seedling transplanting mechanism. | Maile Zhou Yiyin Shan Xianglei Xue Daqing Yin | 2020 | International Journal of Agricultural and Biological Engineering2020，13，4： | 3 |
| 9 | Entropy of three-dimensional BTZ black holes显示文摘The entropies of scalar field and neutrino field are calculated in the background of three-dimensional BTZ black hole. Considering statistical physics,we propose not to consider the superraradiant modes for bosons (Fermion fields do not display supperradiance).In fact,the nonsuperradiant modes do contribute exactly the area entropy for both bosons and fermions. The result shows that the neutrino field entropy is 3/2 times the scalar one. | GAO Changjun1,2 & SHEN Yougen1,2,3,4 1.Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai 200030,China(mailing address) 2.National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China 3.Institute of Theoretical Physics,Chinese academy of Sciences,Beijing 100080,China 4.Shanghai United Center for Astrophysics,Shanghai 200234,China | 2004 | Science China(Physics,Mechanics & Astronomy)2004，47，3： | 3 |
| 10 | Optimized design and experiment of the three-arm transplanting mechanism for rice potted seedlings显示文摘The transplanting arm of two-arm transplanting mechanism is easy to cause seedlings injury and missing due to its faster speed relative to the seedlings.In order to solve the existed problems,a three-arm transplanting mechanism for rice potted seedlings was developed in this study.The developed three-arm transplanting mechanism for rice potted seedling can make the transplanting arm realize special trajectory and attitude through the unequal planetary gear transmission.The kinematic model of three-arm transplanting mechanism for rice potted seedling was established,and the optimal design software was developed.Based on the heuristic optimization algorithm named“parameter guide”,a set of satisfied mechanism parameters required by the rice potted seedling transplanting were obtained.The trajectory and attitude of three-arm transplanting mechanism used for the rice potted seedling were analyzed.Besides,the virtual simulation results were basically consistent with the optimization software results,and the correctness of theoretical analysis and virtual simulation were also verified by each other.When the developed transplanting mechanism picked up the seedling,the velocity of transplanting arm relative to the seedling was reduced by about 30%.The results showed that the injury rate of rice potted seedling transplanting mechanism was 0.04%,the missing rate of seedling was 1.4%,the integrity rate of seedling pot matrix was 96%,and the success rate of picking seedling was 99.92%. | Jianjun Yin Zeliang Wang Maile Zhou Luning Wu Yan Zhang | 2021 | International Journal of Agricultural and Biological Engineering2021，14，5： | 3 |
| 11 | 美国食品安全现代化法案下的食品出口显示文摘美国食品安全现代化法案(Food Safety ModernizationAct,简称“FSMA”)的出版实施极大地改变美国现行的食品安全监管体系,该法案下所有供美的食品企业都必须制定以科学为基础、预防为主的书面食品安全计划。这意味着,食品公司将有责任对他们的设施进行监督,并需要确定其产品中的任何潜在危险,防止发生危害。 | 陶鑫 Maile Hermida | 2017 | 食品安全导刊2017，，3： | 2 |
| 12 | Parsimony in landscape metrics: Strength, universality, and consistency显示文摘 | Samuel A C Kevin M Maile C N | 2008 | Ecological Indicators2008，8，5： | 1 |
| 13 | The biology of burn injury显示文摘 | Evers LH Bhavsar D Mail?覿nder P | 2010 | Exp Dermatol2010，19，9： | 1 |
| 14 | Risk factors contributing to microbiological contamination of Shallow groundwater in Kampa- la, Uganda显示文摘 | Guy H Stephen P Mike B Mail N | 2003 | Water Research2003，8，37： | 1 |
| 15 | Ultrasound measurements of intraabdominal fat estimate the metabolic syndrome better than do measurements of waist circumference 显示文摘 | Stolk RP Meijer R Mail WP | 2003 | Am J Clin Nutr2003，77，4： | 1 |
| 16 | Characterization of signals from multiscale edges显示文摘 | MAIl AT S ZHANG S | 1992 | IEEE Transactions on Pattern Analysis and Machine Intelligence1992，14，7： | 1 |
| 17 | Resuscitation after uncontrolled venous hemorrhage: does increased resuscitation volume improve region- al perfusion 显示文摘 | Mail N Wang P Cioffi WG | 2007 | J Trauma2007，44，： | 1 |
| 18 | Deformation mechanisms of WIPP backfill 显示文摘 | WANG M L MIAO S MAIl A K | 1996 | Radioactive Waste Management and Environmental Restoration1996，20，23： | 1 |
| 19 | The CanMEDS, professional role is complexand needs redefinition in Denmark 显示文摘 | Mailing B Eika B | 2013 | Ugeskr Laeger2013，175，24： | 1 |
| 20 | Blocking ligand occupancy of the αvβ3 integrin inhibits the development of nephropathy in diabetic pigs显示文摘 | Laura A Maile Gollahon KA | 2014 | Endocrinology2014，155，12： | 1 |
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