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| 1 | Disturbance impacts of land use change on biodiversity conservation priority areas across China: 1990-2010显示文摘Land use change is one of the main drivers of biodiversity loss. In the last 20 years, China's land use pattern has undergone profound changes. This study constructs an Ecosystem Comprehensive Anthropogenic Disturbance Index(ECADI) to assess disturbance impacts of land use change between 1990 and 2010 on biodiversity conservation priority areas at national and regional scales. Four levels of biodiversity conservation areas were categorized: generally important areas, moderately important areas, important areas, and very important areas. The results indicated a higher ECADI value in 2010 in Central and Eastern China than in Western China, and the values of the moderately important, important and very important regions were lower than the average value of the whole country at all levels. Notably, in recent 20 years, the change extent of ECADI values in Central and Eastern China were much greater compared with that in Western China, and ECADI values in the moderately important, important and very important biodiversity conservation areas all showed increasing trends, with the increasing extent lower than that of whole China at all levels. Due to human activities such as urbanization in Eastern China and cropland reclamation in Northeast China and Xinjiang, ECADI values showed a medium increase trend(the change rate was about 1%–5% in 10 years), which indicated the need for more conservation efforts in those regions. However, ECADI values in the Loess Plateau presented a low decline trend(the change rate was about –1% to –0.1% in 10 years) after 2000 because of the obvious effectiveness of Green for Grain Project. Furthermore, the variation was negligible in the Tibetan Plateau. | ZHAO Guosong LIU Jiyuan KUANG Wenhui OUYANG Zhiyun XIE Zhenglei | 2015 | Journal of Geographical Sciences2015，25，5： | 26 |
| 2 | Effect of Nano-anatase TiO_2 on Spectral Characterization of PhotosystemⅡParticles from Spinach显示文摘The photosystem Ⅱ(PSⅡ) particles were purified by means of nano-anatase TiO2 treatment of spinach and studied by spectroscopy. The results show that the electron transport and the oxygen-evolving rate of PSⅡ are accelerated after it has been treated with nano-anatase TiO2; the UV-Vis absorption spectrum of PSⅡ particles is increased; the red shift of fluorescence emission peak of PSⅡ is 2 nm; the peak intensity is decreased; the PSⅡ signal Ⅱs of low temperature electron paramagnetic resonanace(EPR) spectrum is intensified under light, and the PSⅡ circular dichroism(CD) spectrum is similar to that of control. It is suggested that nano-anatase TiO2 might bind to the PSⅡ reaction center complex and intensify the function of the PSⅡ electron donor, however, nano-anatase TiO2 treatment does not change the configuration of the PSⅡ reaction center complex. | HONGFa-shui YANGPing GAOFeng-qing LIUChao ZHENGLei YANGFan ZHOUJuan | 2005 | Chemical Research in Chinese Universities2005，21，2： | 10 |
| 3 | Adaptation of mammals to hypoxia显示文摘Oxygen plays a pivotal role in the metabolism and activities of mammals.However,oxygen is restricted in some environments-subterranean burrow systems or habitats at high altitude or deep in the ocean-and this could exert hypoxic stresses such as oxidative damage on organisms living in these environments.In order to cope with these stresses,organisms have evolved specific strategies to adapt to hypoxia,including changes in physiology,gene expression regulation,and genetic mutations.Here,we review how mammals have adapted to the three high-altitude plateaus of the world,the limited oxygen dissolved in deep water habitats,and underground tunnels,with the aim of better understanding the adaptation of mammals to hypoxia. | Fang Li Zhenglei Qiao Qijiao Duan Eviatar Nevo | 2021 | Animal Models and Experimental Medicine2021，4，4： | 3 |
| 4 | Performance and theoretical study on corrosion inhibition of 2-(4-pyridyl)-benzimidazole for mild steel in hydrochloric acid显示文摘 | Fan Zhang Yongming Tang Ziyi Cao Wenheng Jing Zhenglei Wu Yizhong Chen | 2012 | Corrosion Science2012，，： | 2 |
| 5 | Study of Cracking Mechanism and Wear Resistance in Laser Cladding Coating of Ni-based Alloy显示文摘Nickel-based alloy coatings were widely used for the remanufacturing of dies and moulds by laser cladding,but the crack sensitivity would be increase due to the higher strength and hardness,which reduced the wear resistance of Ni-based alloys.In this paper,Ni-based coatings with the addition of a plastic phase(an austenitic stainless net)were prepared using laser cladding technology,and the CeO_(2)was added in cladding layers.The cracking mechanism,microhardness,microstructure,phase composition,and wear properties were investigated.The relationship between thermal stress and the elastic and plastic fracture had been developed from the standpoint of fracture mechan-ics and thermal elastic fracture mechanics.The fracture criterion of the nickel-based coating was obtained,and the study has shown that the crack sensitivity could be reduced by decreasing the thermal expansion coefficientΔα.Thus,a new method was proposed,which the stainless steel nets were prefabricated on the substrate.It was found that the number of cracks reduced significantly with the addition of stainless steel net.When the stainless steel net with 14 mesh was added in Ni-based coatings,the average microhardness of nickel composite coating was 565 HV_(0.2),which was 2.6 times higher than that of the 45 steel substrate.Although the rare earth oxide 4 wt.%CeO_(2)and stainless steel net were added in the Ni-based coating reducing the microhardness(the average microhardness is 425 HV_(0.2)),the wear resistance of it improved substantially.The wear volume of Ni-based composite coating was 0.56×10^(−5) mm^(3)·N^(−1)·m^(−1),which was 85.1%lower than that of 45 steel.The experiment results have shown that the Nickel-based composite coating is equipped with low crack sensitivity and high abrasive resistance with austenitic stainless net and the rare earth oxide 4 wt.%CeO2.This research offers an efficient solution to produce components with low crack susceptibility and high wear-resistance coatings fabricated by laser cladding. | Zhenglei Yu Lunxiang Li Deqiang Zhang Guangfeng Shi Guang Yang Zezhou Xu Zhihui Zhang | 2021 | Chinese Journal of Mechanical Engineering2021，34，5： | 2 |
| 6 | Research and Development of X70 with an Acicular Ferrite Microstructure for West-East Pipeline Project显示文摘It is introduced in this paper that a high strength and high toughness X70 pipeline steel with an ultra low acicular ferrite microstructure has been researched and developed at Baosteel according to the requirements of the West East Gas Pipeline(WEGTP) project. The developed steel has higher strength, higher toughness, lower ductile brittle transition temperature and higher dynamic tear resistance than the conventional X70 with ferrite and pearlite microstructure. The excellent properties of the steel are benefited from ultra-low carbon acicular ferrite consisting of interaction of very fine precipitated particles and high-density dislocation. And the steel has been applied on the WEGTP in China. | ZhengLei GaoShan | 2004 | 工程科学(英文版)2004，2，4： | 2 |
| 7 | Pomelo Peel-Inspired 3D-Printed Porous Structure for Efficient Absorption of Compressive Strain Energy显示文摘The porous structure in pomelo peel is believed to be responsible for the protection of its fruit from damage during the free falling from a tree.The quantitative understanding of the relationship between the deformation behavior and the porous structure could pave the way for the design of porous structures for efficient energy absorption.Here,a universal feature of pore distribution in pomelo peels along the radial direction is extracted from three varieties of pomelos,which shows strong correlation to the deformation behavior of the peels under compression.Guided by the porous design found in pomelo peels,porous polyether-ether-ketone(PEEK)cube is additively manufactured and possesses the highest ability to absorb energy during compression as compared to the non-pomelo-inspired geometries,which is further confirmed by the finite element simulation.The nature-optimized porous structure revealed here could guide the design of lightweight and high-energy-dissipating materials/devices. | Baisong Yang Wenhui Chen Renlong Xin Xiaohong Zhou Di Tan Chuan Ding You Wu Liang Yin Chuyang Chen Shan Wang Zhenglei Yu Jonathan TPham Sheng Liu Yifeng Lei Longjian Xue | 2022 | Journal of Bionic Engineering2022，19，2： | 1 |
| 8 | 显示文摘 | ZhengLei(郑磊) JiaoShaoyang(焦少阳) DongJianxin(董建新) | | 机械工程学报0，，： | 1 |
| 9 | 显示文摘 | JiaoShaoyang(焦少阳) ZhengLei(郑磊) DongJianxin(董建新) | | 机械工程学报0，，： | 1 |
| 10 | Impinging Cooling with a Crescent Surface Inspired by Barchan Dunes in a Simplified Gas Turbine Transition Section显示文摘For the enhancement of heat transfer efficiency,a novel turbulator inspired by the morphology of barchan dunes,called the mimetic barchan dune(MBD)turbulator,is designed and evaluated in the simplified gas turbine transition section.By using computational fluid dynamics(CFD),the numerical simulations for comparison have been carried out,concluding the smooth thermal surface,a thermal surface with riblet-shaped turbulator and a thermal surface with MBD turbulator.Then,two indicators are investigated for evaluating the coolant performance which are the heat transfer efficiency(η)on the outlet and the pressure loss(ΔP)in the coolant chamber.The numerical results show that the coolant has the best heat transfer efficiency with less pressure loss in the coolant chamber with the MBD turbulator.Then,the effect of the MBD turbulator sizes on heat transfer efficiency is investigated.When the height of the MBD turbulator(h)is set at 8 mm,the maximum amount of heat that could be transfered by the coolant is up to566.2 K and the corresponding heat transfer efficiency is 26.62%.The detail flows have been shown to elucidate the function of the MBD surface which may greatly arouse more design for solving harsh circumstance. | GUO Haotian XU Tao LIANG Xiao YU Zhenglei XING Genyuan GUO Huan | 2019 | Transactions of Nanjing University of Aeronautics and Astronautics2019，36，5： | 1 |
| 11 | Analysis of boundary adjustments and land use policy change – A case study of Tianjin Palaeocoast and Wetland National Natural Reserve, China显示文摘 | Zhenglei Xie Lifen Xu Xiaofeng Duan Xuegong Xu | 2011 | Ocean and Coastal Management2011，，： | 1 |
| 12 | Contaminations of Heavy Metals in Surface Soils of Various Lands and Their Health Risks in Tianjin Qilihai Ancient Lagoon Wetlands,China显示文摘A total of 36 surface soil profiles were set at the wetlands in Qilihai Ancient Lagoon Wetlands,Tianjin,the surface soils of 0-20 cm depth were sampled at various use types of lands to provide information on the concentrations of heavy metals in the coastal wetlands.Total concentrations of arsenic(As),cadmium(Cd),copper(Cu),lead(Pb),chromium(Cr)and zinc(Zn)were determined using inductively coupled plasma atomic absorption spectrometry(ICP-AES)to address the pollution levels in the sampling sites.The results showed that the concentrations of Cd,Cu in the soils disturbed by human activities intensively,the Phragmites australis marshes,the farmland,the brushes decreased in turn;among the sites,the concentrations of As,Cd and Cu were the highest in the soil of build-up areas,while the concentrations of Pb and Zn were the higher in the soil of farmland.The mean concentrations of Cu,Cr,Cd,Pb,Zn and As in the soils of 0-20 cm depth were 38.74 mg/kg,83.52 mg/kg,0.19 mg/kg,34.27 mg/kg,121.7 mg/kg and 18.77 mg/kg,respectively.The contamination indices of As were on the high pollution level in the soils of farmland and disturbed by human activities intensively;the concentrations of Cd in the soils of the marshes and farmland were at the moderate pollution level,while that in the soil disturbed by human activities intensively was at high pollution level.The values of comprehensive contamination index demonstrated that the variation of As contents was the maximum in the soils,Cd pollution reached to a high level.Geoaccumulation index showed that As pollution was at moderate level,and Cd,Cu and Zn pollution were at slight level,and the Pb and Cr pollution wasn't found in the build-up areas. | XIANG Lixiong XIE Zhenglei DU Zebing JIANG Yinghui XIE Chao LONG Ting | 2016 | 湿地科学2016，14，5： | 0 |
| 13 | Investigation on the Mechanical Properties and Shape Memory Effect of Landing Buffer Structure Based on NiTi Alloy Printing显示文摘With the deepening of human research on deep space exploration,our research on the soft landing methods of landers has gradually deepened.Adding a buffer and energy-absorbing structure to the leg structure of the lander has become an effective design solution.Based on the energy-absorbing structure of the leg of the interstellar lander,this paper studies the appearance characteristics of the predatory feet of the Odontodactylus scyllarus.The predatory feet of the Odontodactylus scyllarus can not only hit the prey highly when preying,but also can easily withstand the huge counter-impact force.The predatory feet structure of the Odontodactylus scyllarus,like a symmetrical cone,shows excellent rigidity and energy absorption capacity.Inspired by this discovery,we used SLM technology to design and manufacture two nickel-titanium samples,which respectively show high elasticity,shape memory,and get better energy absorption capacity.This research provides an effective way to design and manufacture high-mechanical energy-absorbing buffer structures using bionic 3D printing technology and nickel-titanium alloys. | Zhenglei Yu Renlong Xin Zezhou Xu Yining Zhu Xiaolong Zhang Shijie Hao Zhihui Zhang Ping Liang | 2023 | Chinese Journal of Mechanical Engineering2023，36，4： | 0 |
| 14 | 胺键连接的COF构建分子定义界面协同高效电催化CO2还原显示文摘文章简介长期以来,受到合成COF材料反应可逆性的限制,COF的键合类型种类有限,而合成高化学稳定性的COF材料一直以来都是COF材料研究领域中的重要命题。另一方面,在电催化CO2还原领域中. | 刘昊宇 Jun Chu Zhenglei Yin Xin Cai Lin Zhuang 邓鹤翔 | 2019 | 科学新闻2019，0，2： | 0 |
| 15 | Study on Functional Mechanical Performance of Honeycomb Array Structures Inspired by Gideon Beetle显示文摘To obtain bio-inspired structures with superior biological function,four bio-inspired structures named regular arrangement honeycomb structure(RAHS),staggered arrangement honeycomb structure(SAHS),floral arrangement honeycomb structure(FLAHS)and functional arrangement honeycomb structure(FUAHS)are designed by observing the microstructure of the Gideon beetle,based on the optimal size bio-inspired cells by response surface method(RSM)and particle swarm optimization(PSO)algorithm.According to Euler theory and buckling failure theory,compression deformation properties of bio-inspired structures are explained.Experiments and simulations further verify the accuracy of theoretical analysis results.The results show that energy absorption of FLAHS is,respectively,increased by 26.95%,22.85%,and 121.45%,compared with RAHS,SAHS,and FUAHS.Elastic modulus of FLAHS is 110.37%,110.37%,and 230.56% of RAHS,SAHS,and FUAHS,respectively.FLAHS perfectly inherits crashworthiness and energy absorption properties of the Gideon beetle,and FLAHS has the most stable force.Similarly,RAHS,SAHS,and FUAHS,respectively,inherit mechanical properties of the Gideon beetle top horn,the Gideon beetle middle horn,and the abdomen of the beetle.This method,designing bio-inspired structures with biological functions,can be introduced into the engineering field requiring the special function. | Ruiyao Liu Guofeng Yao Zezhou Xu Xue Guo Kuiyang Gao Qing Cao Zhenglei Yu Zhihui Zhang Chunyang Han Jiabao Liu | 2022 | Journal of Bionic Engineering2022，19，4： | 0 |
| 16 | Development of wet adhesion of honeybee arolium incorporated polygonal structure with three-phase composite interfaces显示文摘Inspired by the dynamic wet adhesive systems in nature,various artificial adhesive surfaces have been developed but still face different challenges.Crucially,the theoretical mechanics of wet adhesives has never been sufficiently revealed.Here,we develop a novel adhesive mechanism for governing wet adhesion and investigate the biological models of honeybee arolium for reproducing the natural wet adhesive systems.Micro-nano structures of honeybee arolium and arolium-prints were observed by Cryogenic scanning electron microscopy(Cryo-SEM),and the air pockets were found in the contact interface notably.Subsequently,the adhesive models with a three-phase composite interface(including air pockets,liquid secretion,and hexagonal frames of arolium),were formed to analyze the wet adhesion of honeybee arolium.The results of theoretical calculations and experiments indicated an enhanced adhesive mechanism of the honeybee by liquid self-sucking effects and air-embolism effects.Under these effects,normal and shear adhesion can be adjusted by controlling the proportion of liquid secretion and air pockets in the contact zone.Notably,the air-embolism effects contribute to the optimal coupling of smaller normal adhesion with greater shear adhesion,which is beneficial for the high stride frequency of honeybees.These works can provide a fresh perspective on the development of bio-inspired wet adhesive surfaces. | Lulu LIANG Jieliang ZHAO Qun NIU Li YU Xiangbing WU Wenzhong WANG Shaoze YAN Zhenglei YU | 2024 | Friction2024，12，2： | 0 |
| 17 | Adhesion and corrosion resistance of polycaprolactone coating on NiTi alloy surface after alkali heat pretreatment显示文摘Selective laser melting of nickel-titanium alloy(SLM-NiTi)can precisely control the size of the sample molding structure and has attracted extensive attention due to its special superelasticity and shape memory effect.However,the biological inertness and poor corrosion resistance of SLM-NiTi alloy limit their wide application as biomedical implant materials.In this study,polycaprolactone(PCL)coating was prepared on SLM-NiTi alloy by dipping and pulling method,and the effects of alkali heat pretreatment on the morphology,adhesion,corrosion resistance,long-term stability and biomineralisation of the PCL coatings were investigated.The results showed that PCL coating can substan-tially improve the performance of SLM-NiTi alloy,and the PCL coating after alkali heat pretreatment has higher adhesion(increased from 1,747 to 2,498 mN)and lower corrosion current density(reduced by about an order of magnitude compared to PCL coating alone).In addition,the necessary stability,biomineralisation and biocompatibility ability of coatings were also further improved.Therefore,the alkali heat pretreated PCL-coated SLM-NiTi alloy has good application prospects in implants due to its superior properties. | Zhihui Zhang Yanan Yang Yunting Guo Pengwei Sha Zezhou Xu Zhenglei Yu Jiashun Si Zhengao Zhang Jia Guo Yifan Chen | 2022 | Biosurface and Biotribology2022，8，4： | 0 |
| 18 | Compression Behavior and Failure Mechanisms of Bionic Porous NiTi Structures Built via Selective Laser Melting显示文摘Inspired by the crystal microstructure of metals and the bamboo,the bionic porous NiTi structures with the porosities in the range of 75.8%–84.9%were built via selective laser melting(SLM).The compression behavior and the failure mechanisms of the porous NiTi structures were evaluated.It demonstrated an increase in the elastic modulus and ultimate strength when the porosity was decreased,from 3.06 to 7.66 GPa and from 34.1 to 147.6 MPa,respectively.The relationship between the elastic modulus and the porosity obtained by the finite element analysis exhibited similar tendency with the experiment,and agreed well with the Gibson-Ashby model’s prediction.Based on the theoretical model above and the observation of the deformation processing,the plastic deformation behavior and failure mechanisms of the SLMed porous NiTi structures were analyzed. | Xiaolong Zhang Yue Jiang Shupeng Wang Shuo Wang Ziqiang Wang Zhenglei Yu Zhihui Zhang Luquan Ren | 2023 | Acta Metallurgica Sinica(English Letters)2023，36，6： | 0 |
| 19 | UCAV situation assessment method based on C-LSHADE-Means and SAE-LVQ显示文摘The unmanned combat aerial vehicle(UCAV)is a research hot issue in the world,and the situation assessment is an important part of it.To overcome shortcomings of the existing situation assessment methods,such as low accuracy and strong dependence on prior knowledge,a datadriven situation assessment method is proposed.The clustering and classification are combined,the former is used to mine situational knowledge,and the latter is used to realize rapid assessment.Angle evaluation factor and distance evaluation factor are proposed to transform multi-dimensional air combat information into two-dimensional features.A convolution success-history based adaptive differential evolution with linear population size reduc-tion-means(C-LSHADE-Means)algorithm is proposed.The convolutional pooling layer is used to compress the size of data and preserve the distribution characteristics.The LSHADE algorithm is used to initialize the center of the mean clustering,which over-comes the defect of initialization sensitivity.Comparing experi-ment with the seven clustering algorithms is done on the UCI data set,through four clustering indexes,and it proves that the method proposed in this paper has better clustering performance.A situation assessment model based on stacked autoen-coder and learning vector quantization(SAE-LVQ)network is constructed,and it uses SAE to reconstruct air combat data fea-tures,and uses the self-competition layer of the LVQ to achieve efficient classification.Compared with the five kinds of assess-ments models,the SAE-LVQ model has the highest accuracy.Finally,three kinds of confrontation processes from air combat maneuvering instrumentation(ACMI)are selected,and the model in this paper is used for situation assessment.The assessment results are in line with the actual situation. | XIE Lei TANG Shangqin WEI Zhenglei XUAN Yongbo WANG Xiaofei | 2023 | Journal of Systems Engineering and Electronics2023，34，5： | 0 |
| 20 | Mechanical Characteristics Analysis of 3D-printing Novel Chiral Honeycomb Array Structures Based on Functional Principle and Constitutive Relationship显示文摘Four novel chiral honeycomb structures inspired by the biological arrangement shape are designed.The functional principle is raised to solve the large deformation of bio-inspired structures and the structural constitutive model is proposed to explain the quasi-static mechanical properties of chiral honeycomb array structures and honeycomb structures.Simulation and experiment results verify the accuracy of theoretical analysis results and the errors are all within 15%.In structural mechanical properties,Equidimensional Chiral Honeycomb Array Structure(ECHS)has excellent mechanical properties.Among ECHS,Small-sized Column Chiral Honeycomb Array Structure(SCHCS)has the best properties.The bearing capacity,specific energy absorption,and specific strength of SCHCS are more than twice as much as the others in this paper.The chiral honeycomb array structure has the best mechanical properties at a certain size.In the structural design,the optimal size model should be obtained first in combination with the optimization algorithm for the protection design. | Ruiyao Liu Guofeng Yao Zezhou Xu Xue Guo Jianyong Li Zhenglei Yu Ping Liang Zhihui Zhang Chunyang Han | 2023 | Journal of Bionic Engineering2023，20，5： | 0 |
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