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| 1 | Design and error analysis of a high accurate star simulator based on optical splicing technology显示文摘Dynamic tar simulator has been widely used in calibration and validation for star trackers.To achieve both high accuracy and large view field,a dynamic star simulatorbased on optical splicing technology with 2 1920 × 1080- LCDs and a half-transmission and half- reflection prisms was proposed in this paper.The physical principal and error model due to the splicing structure has been discussed and analyzed in detail.Based on the Tsinghua Micro star tracker,the error effect and system accuracy has been carefully tested and calibrated.The result showed that this simulator can get the accuracy of 10.4 '(3sigma) within a field of view of,which can meet the simulating requirement of modern star tracker,whose accuracy can reach 3'(3sigma) 。 | LIU Zengyi ZHAO Borui XING Fei | 2015 | Instrumentation2015,2,1: | 7 |
| 2 | Capacities and Failure Modes of Suction Bucket Foundation with Internal Bulkheads显示文摘Suction bucket foundations can be divided into four compartments by cruciform internal bulkheads,thereby yielding better capacity in certain conditions than those without internal bulkheads.As yet,no systematic study has been conducted regarding the effects of cruciform internal bulkheads on the capacities of suction bucket foundations.In this study,we established a large number of finite element models of suction bucket foundations with and without cruciform internal bulkheads and of solid embedded circular foundations.We found the uniaxial capacities and failure modes of suction bucket foundations with various depth ratios to remain basically unaffected by internal bulkheads in uniform clays.However,in inhomogeneous clay with high strength heterogeneity,we observed the uniaxial moment and horizontal capacities and corresponding failure modes of suction bucket foundations with a low depth ratio to be obviously affected by internal bulkheads.In this case,the uniaxial moment capacities,in particular,as well as the horizontal capacities of suction bucket foundations with cruciform internal bulkheads become obviously greater than those without internal bulkheads.Under combined loading,we found the failure envelopes of suction bucket foundations with and without cruciform internal bulkheads and of solid circular foundation to also be basically consistent in uniform clays.However,in inhomogeneous clay with high strength heterogeneity,cruciform internal bulkheads can obviously change the shapes of the failure envelopes of bucket foundations with a small depth ratio.We conclude that when the acting vertical load or foundation depth is relatively small,suction bucket foundations with cruciform internal bulkheads can be subjected to larger moment and horizontal loads in soft clays with high strength heterogeneity. | XIAO Zhong GE Borui WANG Yan | 2017 | Journal of Ocean University of China2017,16,4: | 4 |
| 3 | Microstructures and mechanical properties of Ti_3Al/Ni-based superalloy joints arc welded with Ti–Nb and Ti–Ni–Nb filler alloys显示文摘Dissimilar joining of Ti3Al-based alloy to Ni-based superalloy has been carried out using gas tungsten arc(GTA) welding technology with Ti–Nb and Ti–Ni–Nb filler alloys.The joint welded with the Ti–Nb filler alloy contained much less interfacial brittle phases than the one using the Ti–Ni–Nb filler alloy.The average room-temperature tensile strength of the joint welded with Ti–Nb was 202 MPa and the strength value of the one welded with Ti–Ni–Nb was 128 MPa.For both fillers,the weak links of the dissimilar joints were the weld/In718 interfaces.The presence of TiNi,TiNi3 and Ni3Nb intermetallic compounds in the joint welded with Ti–Ni–Nb induced microcracks at the weld/In718 interface and deteriorated the mechanical properties of the joint.And the adoption of the Ti–Nb filler alloy decreased the formation tendency of interfacial brittle phases to some extent and thus enhanced the tensile strength of the joint. | Bingqing Chen Huaping Xiong Bingbing Sun Siyi Tang Borui Du Neng Li | 2014 | Progress in Natural Science:Materials International2014,24,4: | 3 |
| 4 | Effects of different drying methods on drying kinetics and physicochemical properties of Chrysanthemum morifolium Ramat显示文摘The effects of infrared-assisted hot-air drying(IR-HAD),temperature,humidity controlled hot-air drying(THC-HAD),and hot-air drying(HAD)on the drying kinetics,physicochemical properties,chlorogenic acid content and microstructure of chrysanthemum were experimentally examined.The results showed that the drying time reduced with increasing air drying temperature,with IR-HAD needing the shortest drying time,followed by THC-HAD and HAD.The effective moisture diffusivities(Deff)of chrysanthemum under IR-HAD,THC-HAD,and HAD at 60℃ were 3.22×10^(-9) m^(2)/s,2.19×10^(-9) m^(2)/s,and 2.89×10^(-9) m^(2)/s,respectively.IR-HAD preserved chrysanthemum surface color better than THC-HAD and HAD,whereas the THC-HAD samples obtained higher water holding capacity(WHC),water binding capacity(WBC),and chlorogenic acid content.Additionally,peroxidase(POD)residual activity of the samples decreased with increasing blanching time.The current work provides a theoretical basis for the drying of chrysanthemum. | Borui Li Jueyi Lin Zhian Zheng Hao Duan Dong Li Min Wu | 2019 | International Journal of Agricultural and Biological Engineering2019,12,3: | 3 |
| 5 | Requirement and Development of Hydrogel Micromotors towards Biomedical Applications显示文摘With controllable size,biocompatibility,porosity,injectability,responsivity,diffusion time,reaction,separation,permeation,and release of molecular species,hydrogel microparticles achieve multiple advantages over bulk hydrogels for specific biomedical procedures.Moreover,so far studies mostly concentrate on local responses of hydrogels to chemical and/or external stimuli,which significantly limit the scope of their applications.Tetherless micromotors are autonomous microdevices capable of converting local chemical energy or the energy of external fields into motive forces for self-propelled or externally powered/controlled motion.If hydrogels can be integrated with micromotors,their applicability can be significantly extended and can lead to fully controllable responsive chemomechanical biomicromachines.However,to achieve these challenging goals,biocompatibility,biodegradability,and motive mechanisms of hydrogel micromotors need to be simultaneously integrated.This review summarizes recent achievements in the field of micromotors and hydrogels and proposes next steps required for the development of hydrogel micromotors,which become increasingly important for in vivo and in vitro bioapplications. | Xinyi Lin Borui Xu Hong Zhu Jinrun Liu Alexander Solovev Yongfeng Mei | 2020 | Research2020,,1: | 2 |
| 6 | Treadmill Exercise Relieves Chronic Restraint Stress-induced Cognitive Impairments in Mice Via Activating Protein Phosphatase 2A显示文摘Dear Editor,Aerobic exercise is well known to improve cognitive functions including hippocampus-dependent spatial memory[1]and object recognition[2].Regarding the molecular mechanisms,the indispensable role of brain-derived neurotrophic factor(BDNF)in governing exercise-induced neural plasticity has been demonstrated for the improvement of learning and memory[3].Our recent study further demonstrated the activation of mechanistic target of rapamycin pathways downstream of BDNF to drive synaptic protein synthesis upon persistent exercise[4],but leaving the effect of exercise on the post-translational modification of proteins largely unknown. | Wenjing Zhang Haining Ou Borui Zhang Meifeng Zheng Lan Yan Yang Chen Kwok-Fai So Li Zhang | 2021 | Neuroscience Bulletin2021,37,10: | 2 |
| 7 | Numerical and Experimental Investigations of the Thermal Fatigue Lifetime of CBGA Packages显示文摘A thermal fatigue lifetime prediction model of ceramic ball grid array(CBGA)packages is proposed based on the Darveaux model.A finite element model of the CBGA packages is established,and the Anand model is used to describe the viscoplasticity of the CBGA solder.The average viscoplastic strain energy density increment △Wave of the CBGA packages is obtained using a finite element simulation,and the influence of different structural parameters on theWave is analyzed.A simplified analytical model of the △Wave is established using the simulation data.The thermal fatigue lifetime of CBGA packages is obtained from a thermal cycling test.The Darveaux lifetime predictionmodel ismodified based on the thermal fatigue lifetime obtained fromthe experiment and the corresponding △Wave.A validation test is conducted to verify the accuracy of the thermal fatigue lifetime prediction model of the CBGA packages.This proposed model can be used in engineering to evaluate the lifetime of CBGA packages. | Borui Yang Jun Luo Bo Wan Yutai Su Guicui Fu Xu Long | 2022 | Computer Modeling in Engineering & Sciences2022,,2: | 1 |
| 8 | Temperature-dependent optical resonance in a thin-walled tubular oxide microcavity显示文摘This work proposes a temperature-response capability of optical resonance in tubular optical oxide microcavities. The thin wall thickness with a subwavelength scale enables these microcavities to interact with the environment effectively. By optimization of the geometries and materials, the tubular microcavities can be tuned into temperature-inert in vacuum, and the experiments support this design. The experiments prove the idea of utilizing them as temperature-inert microcavities. Contrary wavelength shifts from previous studies were observed, which can be explained with the theoretical model. Furthermore, the theoretical results of the present work suggest that novel rolled-up microtubes could act as an exceptional optical microcavity for the application in temperature response. | Yangfu Fang Xianyun Lin Shiwei Tang Borui Xu Jiao Wang Yongfeng Mei | 2017 | Progress in Natural Science:Materials International2017,27,4: | 1 |
| 9 | Distribution of the ACME-arcA gene among meticil in-resistant Staphylococcus haemolyticus and identification of a novel ccr al otype in ACME-arcA-positive isolates显示文摘 | Borui P i Meihong Y u Yagang Chen | | 0,,6: | 1 |
| 10 | Shape Memory Alloy Helical Microrobots with Transformable Capability towards Vascular Occlusion Treatment显示文摘Practical implementation of minimally invasive biomedical applications has been a long-sought goal for microrobots.In this field,most previous studies only demonstrate microrobots with locomotion ability or performing a single task,unable to be functionalized effectively.Here,we propose a biocompatible shape memory alloy helical microrobot with regulative structure transformation,making it possible to adjust its motion behavior and mechanical properties precisely.Especially,towards vascular occlusion problem,these microrobots reveal a fundamental solution strategy in the mechanical capability using shape memory effect.Such shape-transformable microrobots can not only manipulate thrust and torque by structure to enhance the unclogging efficiency as a microdriler but also utilize the high work energy to apply the expandable helical tail as a selfpropulsive stent.The strategy takes advantage of untethered manipulation to operate microsurgery without unnecessary damage.This study opens a route to functionalize microrobots via accurate tuning in structures,motions,and mechanical properties. | Hehua Zhang Borui Xu Yi Ouyang Yunqi Wang Hong Zhu Gaoshan Huang Jizhai Cui Yongfeng Mei | 2022 | Research2022,,4: | 1 |
| 11 | Minimizing airfoil drag at low angles of attack with DBD-based turbulent drag reduction methods显示文摘Dielectric Barrier Discharge(DBD)based turbulent drag reduction methods are used to reduce the total drag on a NACA 0012 airfoil at low angels of attack.The interaction of DBD with turbulent boundary layer was investigated,based on which the drag reduction experiments were conducted.The results show that unidirectional steady discharge is more effective than oscillating discharge in terms of drag reduction,while steady impinging discharge fails to finish the mission(i.e.drag increase).In the best scenario,a maximum relative drag reduction as high as 64%is achieved at the freestream velocity of 5 m/s,and a drag reduction of 13.7%keeps existing at the freestream velocity of 20 m/s.For unidirectional discharge,the jet velocity ratio and the dimensionless actuator spacing are the two key parameters affecting the effectiveness.The drag reduction magnitude varies inversely with the dimensionless spacing,and a threshold value of the dimensionless actuator spac-ing of 540(approximately five times of the low-speed streak spacing)exists,above which the drag increases.When the jet velocity ratio smaller than 0.05,marginal drag variation is observed.In con-trast,when the jet velocity ratio larger than 0.05,the experimental data bifurcates,one into the drag increase zone and the other into the drag reduction zone,depending on the value of dimensionless actuator spacing.In both zones,the drag variation magnitude increases with the jet velocity ratio.The total drag reduction can be divided into the reduction in pressure drag and turbulent friction drag,as well as the increase in friction drag brought by transition promotion.The reduction in tur-bulent friction drag plays an important role in the total drag reduction. | Zhi SU Haohua ZONG Hua LIANG Jun LI Like XIE Xuecheng LIU Weiliang KONG Borui ZHENG | 2023 | Chinese Journal of Aeronautics2023,36,4: | 1 |
| 12 | Performance Analysis of Optical Transmission Based on Seven Cores Fiber显示文摘This essay designed a kind of new seven-core fiber with lower crosstalk and loss,and made space division multiplexing transmission experiment based on this seven-core fiber.It is known that crosstalk has the most serious influence in multicore fiber transmission process.Before the experiment,the affecting factors of fiber crosstalk were analyzed through simulation,such as core space,bending radius,and fiber length.Combined with the simulation analysis,the design scheme of multicore fiber with low crosstalk was obtained.Before the fiber design,various factors of influence crosstalk such as the coreto-core distance,bending radius,fiber length and so on.Based on the simulation analysis,conclusion has made on the design scheme of multi-core optimal fiber with low crosstalk.The space division multiplexing and wavelength division multiplexing technology,was adopted to conduct seven-core optical fiber transmission of 58.7km.The crosstalk of adjacent core was suppressed to as low as 45 d B/km,the attenuation of inner core was 0.24 d B/km,the outer cores' 0.32 d B/km.Different bit error rate(BER) performances were also studied under different conditions,through reasonably designing the system to reduce the error rate,improve the performance of the system,and realize long distance and large capacity transmission with fiber. | Hang Zhou Fu Wang Borui Li Ming Tang Xiangjun Xin | 2016 | China Communications2016,13,9: | 1 |
| 13 | Effects of extrusion conditions on the physicochemical properties of soy protein/gluten composite显示文摘Soybean protein-gluten blend was extruded using a co-rotating twin-screw extruder.Effects of different extrusion conditions on the textural properties of extrudates were analyzed by central composite design through the evaluation of texturization index,water holding capacity,and hardness of extruded protein products.Extrusion process variables including feed moisture content(40%-60%),screw speed(12-20 Hz),extrusion temperature(120℃-180℃),and gluten content(16%-32%)were studied by the nonlinear regression equations analysis.The extrusion process was also optimized using response surface methodology(RSM).The influence of moisture content on the hardness of extrudate was the most significant.The optimized results,including feed moisture content,extrusion temperature,screw speed and gluten content were 49.18%-50.15%,155.24℃-159.86℃,16.41-16.73 Hz,20.00%-20.03%,respectively.The microstructures of TISP products were analyzed by scanning electron microscopy(SEM)and the changes of protein molecules before and after extrusion were also analyzed by SDS-PAGE electrophoresis. | Min Wu Yang Sun Chonghao Bi Fang Ji Borui Li Junjie Xing | 2018 | International Journal of Agricultural and Biological Engineering2018,11,4: | 1 |
| 14 | Utility-Based Joint Scheduling Approach Supporting Multiple Services for Co MP-SUMIMO in LTE-A System显示文摘In this paper, we study utility-based resource allocation for users supporting multiple services in a LTE-A system with coordinated multi-point transmission for single-user multi-input multi-output(Co MP-SU-MIMO). We designed Joint Transmission Power Control(JTPC) for the selected clusters for minimizing power consumption in LTE-A systems. The objective of JTPC is to calculate the optimal transmission power for each scheduled user and subcarrier. Moreover, based on the convex optimization theory, we propose the dynamic sector selection method in which the average sector throughput and cell-edge users(UEs) rates are performed to achieve the optimal solution. Simulation results show that the system performance achieved by using the proposed suboptimal algorithm is close to that achieved by the dual decomposition method. | Borui Ren Gang Liu Bin Hou | 2015 | ZTE Communications2015,13,1: | 1 |
| 15 | Visiable electroluminescence from semitransparent Au film/extra thin Sirich silicon oxide film/p-Si structure显示文摘 | Qing Guogang Li Anping Zhang Borui | 1995 | Appl Phys1995,78,3: | 1 |
| 16 | Optical Flow Inversion for Remote Sensing Image Dense Registration and Sensor’s Attitude Motion High-Accurate Measurement显示文摘 | Chong Wang Zheng You Fei Xing Borui Zhao Bin Li Gaofei Zhang Qingchang Tao Bo Shen | 2014 | Mathematical Problems in Engineering2014,,: | 1 |
| 17 | Novel tri- ple-band polarization-insensitive wide-angle ultra-thin microwave metamaterial absorber显示文摘 | Bian Borui Liu Shaobin Wang Shenyun | 2013 | Journal of Applied Physics2013,114,19: | 1 |
| 18 | Green Concerns in Federated Learning over 6G显示文摘As Information,Communications,and Data Technology(ICDT)are deeply integrated,the research of 6G gradually rises.Meanwhile,federated learning(FL)as a distributed artificial intelligence(AI)framework is generally believed to be the most promising solution to achieve“Native AI”in 6G.While the adoption of energy as a metric in AI and wireless networks is emerging,most studies still focused on obtaining high levels of accuracy,with little consideration on new features of future networks and their possible impact on energy consumption.To address this issue,this article focuses on green concerns in FL over 6G.We first analyze and summarize major energy consumption challenges caused by technical characteristics of FL and the dynamical heterogeneity of 6G networks,and model the energy consumption in FL over 6G from aspects of computation and communication.We classify and summarize the basic ways to reduce energy,and present several feasible green designs for FL-based 6G network architecture from three perspectives.According to the simulation results,we provide a useful guideline to researchers that different schemes should be used to achieve the minimum energy consumption at a reasonable cost of learning accuracy for different network scenarios and service requirements in FL-based 6G network. | Borui Zhao Qimei Cui Shengyuan Liang Jinli Zhai Yanzhao Hou Xueqing Huang Miao Pan Xiaofeng Tao | 2022 | China Communications2022,19,3: | 1 |
| 19 | Distribution and Speciation of Chromium and Cadmium in an Organic and Inorganic Fertilized Chernozem显示文摘Fertilizers are widely applied in agricultural practice to improve crop yield and quality.However, they can also alter the behavior of soil pollutants.A field experiment was conducted on a chernozem in Heilongjiang Province, China.Various proportions of inorganic nitrogen(N), phosphorus(P), and organic(manure) fertilizers were applied.Soil samples were collected four times over 2 years, and the total concentrations and speciation of chromium(Cr) and cadmium(Cd) were analyzed.Inorganic fertilizer addition had little effect on the total concentration of Cr and Cd, while organic fertilizer addition reduced the total concentrations of both Cr and Cd.Inorganic fertilizers increased the concentration of Cr in the exchangeable form, but decreased that of the residual form(P < 0.05).Addition of inorganic or organic fertilizer alone decreased concentrations of exchangeable Cd(P < 0.05), but the combination of inorganic and organic fertilizers had the opposite effect.High concentration of total Cd exceeding the upper limits of the Environmental Quality Standard for Soils proposed by the Ministry of Environmental Protection of China could result in an environmental risk, and fertilizer application could lower that risk.Results of risk assessment code calculated as the percentage of the sum of metal concentrations in the exchangeable and carbonate-associated form in total metal concentration showed that Cr and Cd risks were lowered when organic fertilizer was applied alone or in combination with inorganic fertilizers.Our study highlighted that organic fertilizer should be applied alone or in combination with inorganic fertilizers to lower the environmental risks of Cr and Cd pollution in the chernozem. | LIU Borui HUANG Qing CAI Huajie GUO Xiang WANG Tingting GUI Mingying | 2017 | Pedosphere2017,27,6: | 1 |
| 20 | Strategies for generating mouse model resources of human disease显示文摘The number of genetically modified mouse models that mimic human disease is growing rapidly,but only a tiny fraction has been commonly used.According to The Knockout Mouse Program(Lloyd,2011),a public resource of mouse embryonic stem cells containing a null mutation in every gene in the mouse genome,8,916 mutant mice lines were phenotyped up to 19 July 2022.Due to the poor correlation between the genomic responses in the mouse models and those responses in human disease,and since humans differ significantly in their genetic vulnerability to common diseases,we still need better mouse models,especially for common and chronic human diseases,including cancer,pulmonary and cardiovascular diseases,obesity and diabetes,behavioral disorders,and neurodegenerative diseases.These new models will be placed into a public repository,The China National Human Disease Animal Model Resource Center(NAMR).This project is funded by Ministry of Science and Technology of China and specializes in the creation,introduction,collection,preservation,and supply of animal model resources forhuman diseases. | Jirong Pan Ling Zhang Zhibing Huang Dalu Zhao He Li Yanan Fu Meng Wang Borui Chen Fuad A.Iraqi Grant Morahan Chuan Qin | 2023 | Protein & Cell2023,14,12: | 1 |