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| 1 | Nonlinear dynamic modeling of a helicopter planetary gear train for carrier plate crack fault diagnosis显示文摘Planetary gear train plays a significant role in a helicopter operation and its health is of great importance for the flight safety of the helicopter.This paper investigates the effects of a planet carrier plate crack on the dynamic characteristics of a planetary gear train,and thus finds an effective method to diagnose crack fault.A dynamic model is developed to analyze the torsional vibration of a planetary gear train with a cracked planet carrier plate.The model takes into consideration nonlinear factors such as the time-varying meshing stiffness,gear backlash and viscous damping.Investigation of the deformation of the cracked carrier plate under static stress is performed in order to simulate the dynamic effects of the planet carrier crack on the angular displacement of carrier posts.Validation shows good accuracy of the developed dynamic model in predicting dynamic characteristics of a planetary gear train.Fault features extracted from predictions of the model reveal the correspondence between vibration characteristic and the conditions(length and position)of a planet carrier crack clearly. | Fan Lei Wang Shaoping Wang Xingjian Han Feng Lyu Huawei | 2016 | Chinese Journal of Aeronautics2016，29，3： | 16 |
| 2 | High-precision bio-replication of synthetic drag reduction shark skin显示文摘Nano-long chains were grafted over the replicated micro-grooves of shark skin in a novel attempt to replicate bio-synthetic drag reduction structure with high precision through synthetic bio-replication. Pre-treated shark skin was used as casting template to prepare a flexible female die of silicone rubber by soft die formation. A waterborne epoxy resin was then used to graft long-chains of drag reduction agent and prepare a synthetic drag reduction shark skin with nano-long chain drag reduction interface and lifelike micro-grooves. Replication precision analysis shows that this technology could replicate the complicated three-dimensional morphology of a biological drag reduction surface with high precision. Drag reduction experiments show that the material had an excellent synthetic drag reduction effect, with a maximal drag reduction rate of up to 24.6% over the velocities tested. | ZHANG DeYuan LI YuanYue HAN Xin LI Xiang CHEN HuaWei | 2011 | Chinese Science Bulletin2011，56，9： | 13 |
| 3 | Effect of tip geometry and tip clearance on aerodynamic performance of a linear compressor cascade显示文摘The tip leakage flow between a blade and a casing wall has a strong impact on compressor pressure rise capability, efficiency, and stability. Consequently, there is a strong motivation to look for means to minimize its impact on performance. This paper presents the potential of passive tip leakage flow control to increase the aerodynamic performance of highly loaded compressor blades. Experimental investigations on a linear compressor cascade equipped with blade winglets mounted to the blade tips have been carried out. Results for a variation of the tip clearance and the winglet geometry are presented. Current results indicate that the use of proper tip winglets in a compressor cascade can positively affect the local aerodynamic field by weakening the tip leakage vortex. Results also show that the suction-side winglets are aerodynamically superior to the pressure-side or combined winglets. The suction-side winglets are capable of reducing the exit total pressure loss associated with the tip leakage flow and the passage secondary flow to a significant degree. | Zhong Jingjun Han Shaobing Lu Huawei Kan Xiaoxu | 2013 | Chinese Journal of Aeronautics2013，26，3： | 12 |
| 4 | Efficient genetic transformation and CRISPR/Cas9-mediated genome editing of watermelon assisted by genes encoding developmental regulators显示文摘Cucurbitaceae is an important family of flowering plants containing multiple species of important food plants,such as melons,cucumbers,squashes,and pumpkins.However,a highly efficient genetic transformation system has not been established for most of these species(Nanasato and Tabei,2020).Watermelon(Citrullus lanatus),an economically important and globally cultivated fruit crop,is a model species for fruit quality research due to its rich diversity of fruit size,shape,flavor,aroma,texture. | Wenbo PAN Zhentao CHENG Zhiguo HAN Hong YANG Wanggen ZHANG Huawei ZHANG | 2022 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022，23，4： | 4 |
| 5 | Lamb wave sensors array for nonviscous liquid sensing显示文摘The interdigital transducer (IDT) can excite Lamb wave in a piezoelectric plate loading with a liquid layer, and the phase velocity of Lamb wave is associated with the properties of the liquid layer. In this paper, the concept of effective permittivity is introduced to study the Lamb wave's potential application in liquid sensing. Considering the measuring of ideal nonviscous liquid, the sensors array is designed to sense the density and the dielectric constant of the liquid layer simultaneously. Using LiNbO3 as piezoelectric material, in order to improve the sensors array sensitivity and the electro-mechanical coupling coefficient, the optimized results including plate thicknesses and cut orientations are presented by numerical simulation. These studies show that the Lamb wave sensors array can be potential in liquid sensing. | CHEN Zhijun HAN Tao JI Xiaojun GUO Huawei SHI Wenkang | 2006 | Science China(Physics,Mechanics & Astronomy)2006，49，4： | 3 |
| 6 | Soft-Control for Collective Opinion of Weighted DeGroot Model显示文摘The DeGroot model is a classic model to study consensus of opinion in a group of individuals(agents). Consensus can be achieved under some circumstances. But when the group reach consensus with a convergent opinion value which is not what we expect, how can we intervene the system and change the convergent value? In this paper a mechanism named soft control is first introduced in opinion dynamics to guide the group's opinion when the population are given and evolution rules are not allowed to change. According to the idea of soft control, one or several special agents,called shills, are added and connected to one or several normal agents in the original group. Shills act and are treated as normal agents. The authors prove that the change of convergent opinion value is decided by the initial opinion and influential value of the shill, as well as how the shill connects to normal agents. An interesting and counterintuitive phenomenon is discovered: Adding a shill with an initial opinion value which is smaller(or larger) than the original convergent opinion value dose not necessarily decrease(or increase) the convergent opinion value under some conditions. These conditions are given through mathematical analysis and they are verified by the numerical tests. The authors also find out that the convergence speed of the system varies when a shill is connected to different normal agents. Our simulations show that it is positively related to the degree of the connected normal agent in scale-free networks. | HAN Huawei QIANG Chengcang WANG Caiyun HAN Jing | 2017 | Journal of Systems Science & Complexity2017，30，3： | 3 |
| 7 | Phototransduction in Drosophila显示文摘The Drosophila visual transduction is the fastest known G protein-coupled signaling cascade and has been served as a model for understanding the molecular mechanisms of other G protein-coupled signaling cascades. Numbers of components in visual transduction machinery have been identified. Based on the functional characterization of these genes, a model for Drosophila phototransduction has been outlined, including rhodopsin activation, phosphoinoside signaling, and the opening of TRP and TRPL channels. Recently, the characterization of mutants, showing slow termination, revealed the physiological significance and the mechanism of rapid termination of light response. | TIAN Yao HU Wen TONG HuaWei HAN JunHai | 2012 | Science China(Life Sciences)2012，55，1： | 2 |
| 8 | QTL mapping of drought tolerance traits in soybean with SLAF sequencing显示文摘Drought stress is an important factor affecting soybean yield.Improving drought tolerance of soybean varieties can increase yield and yield stability when the stress occurs.Identifying QTL related to drought tolerance using molecular marker-assisted selection is able to facilitate the development of drought-tolerant soybean varieties.In this study,we used a high-yielding and drought-sensitive cultivar‘Zhonghuang 35’and a drought-tolerant cultivar‘Jindou 21’to establish F6:9 recombinant inbred lines.We constructed a highdensity genetic map using specific locus amplified fragment sequencing(SLAF-Seq)technology.The genetic map contained 8078 SLAF markers distributing across 20 soybean chromosomes with a total genetic distance of 3780.98 c M and an average genetic distance of0.59 c M between adjacent markers.Two treatments(irrigation and drought)were used in the field tests,the Additive-Inclusive Composite Interval Mapping(ICIM-ADD)was used to call QTL,and plant height and seed weight per plant were used as the indicators of drought tolerance.We identified a total of 23 QTL related to drought tolerance.Among them,seven QTL(q PH2,q PH6,q PH7,q PH17,q PH19-1,q PH19-2,and q PH19-3)on chromosomes 2,6,7,17,and 19 were related to plant height,and five QTL(q SWPP2,q SWPP6,q SWPP13,q SWPP17,and q SWPP19)on chromosomes 2,6,13,17,and 19 were related to seed weight and could be considered as the major QTL.In addition,three common QTL(q PH6/q SWPP6,q PH17/q SWPP17,and q PH19-3/q SWPP19)for both plant height and seed weight per plant were located in the same genomic regions on the same chromosomes.Three(q PH2,q PH17,and q PH19-2)and four novel QTL(q SWPP2,q SWPP13,q SWPP17,and q SWPP19)were identified for plant height and seed weight per plant,respectively.Two pairs of QTL(q PH2/q SWPP2 and q PH17/q SWPP17)were also common for both plant height and seed weight per plant.These QTL and closely linked SLAF markers could be used to accelerate breeding for drought tolerant cultivars via MAS. | Honglei Ren Jianan Han Xingrong Wang Bo Zhang Lili Yu Huawei Gao Huilong Hong Rujian Sun Yu Tian Xusheng Qi Zhangxiong Liu Xiaoxia Wu Li-Juan Qiu | 2020 | The Crop Journal2020，8，6： | 2 |
| 9 | Spatial distribution pattern of seafloor hydrothermal vents to the southeastern Kueishan Tao offshore Taiwan Island显示文摘Investigations of the diffusion activities both within and outside the seafloor hydrothermal vents, as well as related mineral genesis, have been one of the key focuses of ocean biogeochemistry studies. Many hydrothermal vents are distributed close to the southern Okinawa Trough on the less-than-30-m deep shallow seafloor off Kueishan Tao, northeast of Taiwan Island. Investigations of temperature, pH and Eh at four depths of hydrothermal plume were carried out near Kueishan Tao at the white(24.83°N, 121.96°E) and yellow(24.83°N, 121.96°E) vents. An 87 h of temperature time series observation-undertaken near the white vent showed that tide is the main factor affecting the background environment. Based on the observed data, 3-dimensional sliced diffusion fields were obtained and analyzed. It was concluded that the plume diffused mainly from north to south due to ebb tide. The yellow vent's plume could effect as far as the white vent surface. From the temperature diffusion field, the vortices of the plume were observed. The Eh negative abnormality was a better indicator to search for hydrothermal plumes and locate hydrothermal vents than high temperature and low pH abnormalities. | HAN Chenhua YE Ying PAN Yiwen QIN Huawei WU Guanghai CHEN Chen-Tung Arthur | 2014 | Acta Oceanologica Sinica2014，33，4： | 2 |
| 10 | Fractal Design Boosts Extrusion-Based 3D Printing of Bone-Mimicking Radial-Gradient Scaffolds显示文摘Although extrusion-based three-dimensional(EB-3D)printing technique has been widely used in the complex fabrication of bone tissue-engineered scaffolds,a natural bone-like radial-gradient scaffold by this processing method is of huge challenge and still unmet.Inspired by a typical fractal structure of Koch snowflake,for the first time,a fractal-like porous scaffold with a controllable hierarchical gradient in the radial direction is presented via fractal design and then implemented by EB-3D printing.This radial-gradient structure successfully mimics the radially gradual decrease in porosity of natural bone from cancellous bone to cortical bone.First,we create a design-to-fabrication workflow with embedding the graded data on basis of fractal design into digital processing to instruct the extrusion process of fractal-like scaffolds.Further,by a combination of suitable extruded inks,a series of bone-mimicking scaffolds with a 3-iteration fractal-like structure are fabricated to demonstrate their superiority,including radial porosity,mechanical property,and permeability.This study showcases a robust strategy to overcome the limitations of conventional EB-3D printers for the design and fabrication of functionally graded scaffolds,showing great potential in bone tissue engineering. | Huawei Qu Zhenyu Han Zhigang Chen Lan Tang Chongjian Gao Kaizheng Liu Haobo Pan Hongya Fu Changshun Ruan | 2021 | Research2021，，1： | 2 |
| 11 | Influence of a TiAlN Coating on the Mechanical Properties of a Heat Resistant Steel at Room Temperature and 650℃显示文摘A TiAlN coating was deposited on a heat resistant steel X12CrMoWVNbN10-1-1 by vacuum arc ion plating.The tensile and fatigue properties of the coated steel were investigated at room temperature(RT) and 650 ℃.The results reveal that the TiAlN coating is compact,on which a small number of large particle and pits are present.The Ti/Al atomic ratio in the coating is about 0.94.The average hardness of the coating is 1 868 HV0.1 and the interface bonding force between TiAlN coating and the substrate is about 31 N.The elastic modulus and the strength of the steel are improved by the deposition of TiAlN coating.The influence of the TiAlN coating on the tensile properties of the steel can be ignored at both RT and 650 ℃.Moreover,there is no obvious decrease of the fatigue limit of substrate when the steel is coated by the coating at the investigated temperature. | 张程煜 CAO Huawei HAN Dong QIAO Shengru 郭永 | 2013 | Journal of Wuhan University of Technology(Materials Science)2013，28，5： | 1 |
| 12 | A numerical study of entrainment mechanism in axisymmetric annular gas-liquid flow 显示文摘 | Han Huawei Gabriel Kameal | 2007 | Fluids Engineering2007，129，： | 1 |
| 13 | Fault Tolerance M echanism in Chip M any-core Processors显示文摘 | Zhang Lei Han Yinhe Li Huawei | 2007 | Tsinghua Science&Technology2007，12，1： | 1 |
| 14 | A general transformation from KP-ABE to searchable encryption显示文摘 | Fei Han Jing Qin Huawei Zhao Jiankun Hu | 2014 | Future Generation Computer Systems2014，，： | 1 |
| 15 | An electrocatalyst with anti-oxidized capability for overall water splitting显示文摘 | Chang Yu Huawei Huang Si Zhou Xiaotong Han Changtai Zhao Juan Yang Shaofeng Li Wei Guo Bowen An Jijun Zhao Jieshan Qiu | 2018 | Nano Research2018，11，6： | 1 |
| 16 | The N- and C-terminal carbohydrate recognition domains of galectin-9 contribute differently to its multiple functions in innate immunity and adaptive immunity显示文摘 | Yurong Li Jiannan Feng Shaoxia Geng Shusheng Geng Huawei Wei Guojiang Chen Xinying Li Liyan Wang Renxi Wang Hui Peng Gencheng Han Beifen Shen Yan Li | 2010 | Molecular Immunology2010，，4： | 1 |
| 17 | A multi-channel chemical sensor and its application in detecting hydrothermal vents显示文摘There are well-established chemical and turbidity anomalies in the plumes occurring vicinity of hydrothermal vents, which are used to indicate their existence and locations. We here develop a small, accurate multi-channel chemical sensor to detect such anomalies which can be used in deep-sea at depths of more than 4 000 m. The design allowed five all-solid-state electrodes to be mounted on it and each (apart from one reference electrode) could be changed according to chemicals to be measured. Two experiments were conducted using the chemical sensors. The first was a shallow-sea trial which included sample measurements and in situ monitoring. pH, Eh, CO3^2- and SO4^2- electrodes were utilized to demonstrate that the chemical sensor was accurate and stable outside the laboratory. In the second experiment, the chemical sensor was integrated with pH, Eh, CO3^2- and H2S electrodes, and was used in 29 scans of the seabed along the Southwest Indian Ridge (SWIR) to detect hydrothermal vents, from which 27 sets of valid data were obtained. Hydrothermal vents were identified by analyzing the chemical anomalies, the primary judging criteria were decreasing voltages of Eh and H2S, matched by increasing voltages of pH and CO3^2- . We proposed that simultaneous detection of changes in these parameters will indicate a hydrothermal vent. Amongst the 27 valid sets of data, five potential hydrothermal vents were targeted using the proposed method. We suggest that our sensors could be widely employed by marine scientists. | Zhen Cai A J Mur Luis Jiwan Han Kui Wang Huawei Qin Ying Ye | 2019 | Acta Oceanologica Sinica2019，38，9： | 1 |
| 18 | ZoneDefense:a fault-to-lerant routing for 2-D Meshes without virtual channels显示文摘 | Fu Binzhang Han Yinhe Li Huawei | 2014 | IEEE Trans on Very Large Scale Integration Systems2014，22，1： | 1 |
| 19 | Investigation of four porcine candidate genes (H-FABP, MYOD1, UCP3 and MASTR) for meat quality traits in Large White pigs显示文摘 | Xuelei Han Tengfei Jiang Huawei Yang Qingde Zhang Weimin Wang Bin Fan Bang Liu | 2012 | Molecular Biology Reports2012，，6： | 1 |
| 20 | The characteristics and correlation between the ischemia-reperfusion and changes of redox status in the early stage of severe burns显示文摘 | Lizhu Zhi Xinlei Hu Jun Xu Chaoheng Yu Huawei Shao Xuanliang Pan Hang Hu Chunmao Han | 2014 | American Journal of Emergency Medicine2014，，： | 1 |
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