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| 1 | Review of renewable energy-based hydrogen production processes for sustainable energy innovation显示文摘In this review,we primarily analyze the hydrogen production technologies based on water and biomass,including the economic,technological,and environmental impacts of different types of hydrogen production technologies based on these materials,and comprehensively compare them.Our analyses indicate that all renewable energy-based approaches for hydrogen production are more environmentally friendly than fossil-based hydrogen generation approaches.However,the technical ease and economic efficiency of hydrogen production from renewable sources of energy needs to be further improved in order to be applied on a large scale.Compared with other renewable energy-based methods,hydrogen production via biomass electrolysis has several advantages,including the ease of directly using raw biomass.Furthermore,its environmental impact is smaller than other approaches.Moreover,using a noble metal,catalyst-free anode for this approach can ensure a considerably low power consumption,which makes it a promising candidate for clean and efficient hydrogen production in the future. | Mengjiao Wang Guizhou Wang Zhenxin Sun Yukui Zhang Dong Xu | 2019 | Global Energy Interconnection2019，2，5： | 14 |
| 2 | Preparation of novel bovine hemoglobin surface-imprinted polystyrene nanoparticles with magnetic susceptibility显示文摘In this research, a surface imprinting strategy has been adopted in protein imprinting. Bovine hemo-globin surface-imprinted polystyrene (PS) nanoparticles with magnetic susceptibility have been syn-thesized through multistage core-shell polymerization system using 3-aminophenylboronic acid (APBA) as functional and cross-linking monomers. Superparamagnetic molecularly imprinted polystyrene nanospheres with poly(APBA) thin films have been synthesized and used for the first time for protein molecular imprinting in an aqueous solution. The magnetic susceptibility is imparted through the successful encapsulation of Fe3O4 nanoparticles. The morphology, adsorption, and recognition prop-erties of superparamagnetic molecularly imprinted polymers (MIPs) have been investigated using transmission electron microscopy, X-ray diffraction, thermogravimetric analysis, and vibrating sample magnetometer. Rebinding experimental results show that poly(APBA) MIPs-coated superparamagnetic PS nanoparticles have high adsorption capacity for template protein bovine hemoglobin and compara-tively low nonspecific adsorption. The imprinted superparamagnetic nanoparticles could easily reach the adsorption equilibrium and achieve magnetic separation in an external magnetic field, thus avoid-ing some problems of the bulk polymer. | LI Lin HE XiWen CHEN LangXing ZHANG YuKui | 2009 | Science China Chemistry2009，52，9： | 8 |
| 3 | Experimental Study on the Resistance of a Transport Ship Navigating in Level Ice显示文摘这研究调查由在天津大学在一辆冰坦克进行一系列模型测试在北极水里遨游的一艘运输轮船的抵抗。实验室规模模型轮船用一个一个方向性的负担房间在一辆僵硬马车上被装然后以不同速度通过一张冰表拖引。我们在轮船的不同部分和冰大浮冰的运动观察了打破冰的过程并且在不同速度下面测量了电阻决定在打破冰的过程和冰抵抗之间的关系。在肩膀区域的弯曲失败被发现引起最大的抵抗。而且,我们为估计冰抵抗介绍了 Lindqvist (1989 ) 的分析方法然后从我们的模型测试把这些计算结果与那些作比较。结果显示计算全部的电阻比那些高我们在模型测试决定了。 | Yan Huang Jianqiao Sun Shaopeng Ji Yukui Tian | 2016 | Journal of Marine Science and Application2016，15，2： | 7 |
| 4 | Electrode design using revolving entity extraction for high-efficiency electric discharge machining of integral shrouded blisk显示文摘The integral shrouded blisk provides better performance with minimum weight,but its semi-open structure presents problems for its production.Manufacturing processes of these components require a removal of about 70%-90%of material from their blanks.Multi-axis electrical discharge machining(EDM)is commonly used for these processes,but its poor efficiency cannot meet the requirements of mass production.Strong flushing assisted high-current discharge is able to improve the machining efficiency.In this paper,this method was applied to manufacture the integral shrouded blisk.An electrode design method was proposed.Taking the largest revolving entity inside the flow channel as the base geometry,this laminated arc-shaped hollow electrode meets the requirements such as high pressure flushing,tool wear compensation,and easy to be made.A 4-axis linkage machining tool path with planetary motion was proposed.Taking an integral guide vane ring as an example,it has been experimentally verified that the time consumption for each channel using this method was reduced to a half of the ordinary EDM method,while the finished surface quality remains same. | Yuchao JIA Guanxin CHI Yang SHEN Kun ZHANG Zhenlong WANG Yukui WANG | 2021 | Chinese Journal of Aeronautics2021，34，6： | 5 |
| 5 | Spatio-temporal variation in rock exhumation linked to large-scale shear zones in the southeastern Tibetan Plateau显示文摘Crustal-scale shear zones are believed to have played an important role in the tectonic and landscape evolution of orogens. However, the variation of long-term rock exhumation between the interior of shear zones and adjacent regions has not been documented in detail. In this study, we obtained new zircon U-Pb, biotite ^(40)Ar/^(39)Ar, zircon and apatite(U-Th)/He data, and conducted inverse thermal history modeling from two age-elevation profiles(the Pianma and Tu'er profiles) in the southeastern Tibetan Plateau. Our goal is to constrain the exhumation history of the Gaoligong and Chongshan shear zones and adjacent regions, so as to explore the effect of the shear zones on exhumation and their thermal effect on cooling that should not be ignored. Our results suggest that during the interval of 18–11 Ma the exhumation rates of rocks within the Gaoligong shear zone are anomalously high compared with those outside of. The rapid cooling during 18–11 Ma appears to be restricted to the shear zone, likely due to localized thermal effects of shearing and exhumation. After 11 Ma, both the areas within and outside of the shear zones experienced a similar two-stage exhumation history: slower cooling until the early Pliocene, and then a rapid increase in cooling rate since the early Pliocene. Our results indicate a synchronized exhumation but with spatially varied exhumation rates. Our study also highlights the important role of large-scale shear zones in exposing rocks, and thus the importance of the structural context when interpreting thermochronological data in the southeastern margin of the Tibetan Plateau. | Yukui GE Jing LIU-ZENG Jinyu ZHANG Wei WANG Yuntao TIAN Matthew FOX Lingsen ZENG Xiaoming SHEN Heng WANG Ze SU Kejia XIE | 2020 | Science China Earth Sciences2020，63，4： | 5 |
| 6 | A novel organic-inorganic hybrid monolith for trypsin immobilization显示文摘In proteomics, attention has focused on various immobilized enzyme reactors (IMERs) for the realization of high throughput digestion. In this report, a novel organic-inorganic hybrid monolith based IMER was prepared in a 100 μm i.d. capillary with 3-glycidoxypropyltrimethoxysilane (GLYMO) as the monomer and tetraethoxysilane (TEOS) as the crosslinker. Trypsin immobilization was achieved via the reaction between vicinal diol groups, which were obtained from hydrolysis of epoxy groups, and the amino groups of trypsin. Bovine serum albumin was digested thoroughly by this IMER in 47 s. After micro-reverse phase liquid chromatography-tandem mass spectrometry (μRPLC-MS/MS) analysis and database searching, beyond 35% sequence coverage was obtained, and the result was comparable to that of 12 h in solution digestion. The present IMER has potential for high throughput digestion. | WU ShuaiBin MA JunFeng YANG KaiGuang LIU JinXiang LIANG Zhen ZHANG LiHua ZHANG YuKui | 2011 | Science China(Life Sciences)2011，54，1： | 5 |
| 7 | A Prototype of a Biomimetic Mantle Jet Propeller Inspired by Cuttlefish Actuated by SMA Wires and a Theoretical Model for Its Jet Thrust显示文摘 | Fei Gao Zhenlong Wang Yukui Wang Yangwei Wang Jian Li | 2014 | Journal of Bionic Engineering2014，11，3： | 4 |
| 8 | Physicochemical Properties and Gasification Reactivity of the Ultrafine Semi-char derived from a Bench-scale Fluidized Bed Gasifier显示文摘Zhundong coalfield is the largest intact coalfield worldwide and fluidized bed gasification has been considered as a promising way to achieve its clean and efficient utilization. The purpose of this study is to investigate the physicochemical properties and gasification reactivity of the ultrafine semi-char, derived from a bench-scale fluidized bed gasifier, using Zhundong coal as fuel. The results obtained are as follows. In comparison to the raw coal, the carbon and ash content of the semi-char increase after partial gasification, but the ash fusion temperatures of them show no significant difference. Particularly, 76.53% of the sodium in the feed coal has released to the gas phase after fluidized bed gasification. The chemical compositions of the semi-char are closely related to its particle size, attributable to the distinctly different natures of diverse elements. The semi-char exhibits a higher graphitization degree, higher BET surface area, and richer meso-and macropores, which results in superior gasification reactivity than the coal char. The chemical reactivity of the semi-char is significantly improved by an increased gasification temperature, which suggests the necessity of regasification of the semi-char at a higher temperature. Consequently, it will be considered feasible that these carbons in the semi-char from fluidized bed gasifiers are reclaimed and reused for the gasification process. | ZHANG Yukui ZHANG Haixia ZHU Zhiping NA Yongjie LU Qinggang | 2017 | Journal of Thermal Science2017，26，4： | 4 |
| 9 | Comparison of Achievable Rates of OFDM and Single Carrier Communication Systems显示文摘This paper presents a theoretical comparison of a single carrier system and a multi-carrier system through an analysis of the achievable rate under frequency selective fading with channel state information at the receiver. A scheme was designed to compare the achievable rates of a single carrier system and an Or-thogonal Frequency Division Multiplexing (OFDM) system. A thorough theoretical analysis of the two-path channel was conducted, and simulations were also used to analyze practical stochastic channels. Analysis and simulation results show that the achievable rates of the two approaches are comparable when the channel is flat fading. However, when the channel is frequency selective fading, the single carrier system outperforms the OFDM system. The achievable rate of the OFDM system is about 10% lower than that of the single carrier system at higher SNRs. | Jiaqi Zhang Yukui Pei Ning Ge | 2012 | Tsinghua Science and Technology2012，17，1： | 3 |
| 10 | Circulating Fluidized Bed Gasification of Low Rank Coal:Influence of O2/C Molar Ratio on Gasification Performance and Sulphur Transformation显示文摘To promote the utilization efficiency of coal resources,and to assist with the control of sulphur during gasification and/or downstream processes,it is essential to gain basic knowledge of sulphur transformation associated with gasification performance.In this research we investigated the influence of O_2/C molar ratio both on gasification performance and sulphur transformation of a low rank coal,and the sulphur transformation mechanism was also discussed.Experiments were performed in a circulating fluidized bed gasifier with O_2/C molar ratio ranging from 0.39 to 0.78 mol/mol.The results showed that increasing the O_2/C molar ratio from 0.39 to 0.78 mol/mol can increase carbon conversion from 57.65%to 91.92%,and increase sulphur release ratio from 29.66%to63.11%.The increase of O_2/C molar ratio favors the formation of H_2S,and also favors the retained sulphur transforming to more stable forms.Due to the reducing conditions of coal gasification,H_2S is the main form of the released sulphur,which could be formed by decomposition of pyrite and by secondary reactions.Bottom char shows lower sulphur content than fly ash,and mainly exist as sulphates.X-ray photoelectron spectroscopy(XPS)measurements also show that the intensity of pyrite declines and the intensity of sulphates increases for fly ash and bottom char,and the change is more obvious for bottom char.During CFB gasification process,bigger char particles circulate in the system and have longer residence time for further reaction,which favors the release of sulphur species and can enhance the retained sulphur transforming to more stable forms. | ZHANG Haixia ZHANG Yukui ZHU Zhiping LU Qinggang | 2016 | Journal of Thermal Science2016，25，4： | 3 |
| 11 | CodeHop: physical layer error correction and encryption with LDPC-based code hopping显示文摘This paper proposes a novel scheme named Code Hop, which provides both information reliability and security using code hopping based on low-density parity-check(LDPC) codes. In contrast to traditional systems that perform error correction and encryption at different layers, Code Hop combines these two operations into a single step at physical layer, such that each plaintext message is jointly encoded and encrypted by a hopping parity-check matrix. According to a pseudo-random number generator(PRNG), the hopping matrix may rapidly switch among a sequence of LDPC parity-check matrices, which is randomly generated by a structured-random protograph expanding technique. Simulations show that reliable communication can be achieved by Code Hop with good error-correcting performance. In the meantime, Code Hop may improve the security of traditional systems such as GSM. Taking the A5/1 stream cipher used in GSM as the PRNG, it is shown that Code Hop is resistant to existing chosen-plaintext attacks that break A5/1 cipher already. Moreover, the security of Code Hop will be enhanced in the presence of channel errors as well. | Zhao CHEN Liuguo YIN Yukui PEI Jianhua LU | 2016 | Science China(Information Sciences)2016，59，10： | 3 |
| 12 | Intelligent learning model-based skill learning and strategy optimization in robot grinding and polishing显示文摘With the rapid advancement of manufacturing in China,robot machining technology has become a popular research subject.An increasing number of robots are currently being used to perform complex tasks during manual operation,e.g.,the grinding of large components using multi-robot systems and robot teleoperation in dangerous environments,and machining conditions have evolved from a single open mode to a multisystem closed mode.Because the environment is constantly changing with multiple systems interacting with each other,traditional methods,such as mechanism modeling and programming are no longer applicable.Intelligent learning models,such as deep learning,transfer learning,reinforcement learning,and imitation learning,have been widely used;thus,skill learning and strategy optimization have become the focus of research on robot machining.Skill learning in robot machining can use robotic flexibility to learn skills under unknown working conditions,and machining strategy research can optimize processing quality under complex working conditions.Additionally,skill learning and strategy optimization combined with an intelligent learning model demonstrate excellent performance for data characteristics learning,multisystem transformation,and environment perception,thus compensating for the shortcomings of the traditional research field.This paper summarizes the state-of-the-art in skill learning and strategy optimization research from the perspectives of feature processing,skill learning,strategy,and model optimization of robot grinding and polishing,in which deep learning,transfer learning,reinforcement learning,and imitation learning models are integrated into skill learning and strategy optimization during robot grinding and polishing.Finally,this paper describes future development trends in skill learning and strategy optimization based on an intelligent learning model in the system knowledge transfer and nonstructural environment autonomous processing. | CHEN Chen WANG Yu GAO ZhiTao PENG FangYu TANG XiaoWei YAN Rong ZHANG YuKui | 2022 | Science China(Technological Sciences)2022，65，9： | 3 |
| 13 | High performance liquid chromatographic separation of eight drugs collected in Chinese Pharmacopoeia 2010 on amylose ramification chiral stationary phase显示文摘The enantiomers separation of ei ght pharmaceutical racemates collected in Chinese Pharmacopoeia 2010(Ch.P2010),including nitrendipine,felodipine,omeprazole,praziquantel,sulpiride,clenbuterol hydrochloride,verapamil hydrochloride and chlorphenamine maleate,was performed on chiral stationary phase of amylose ramification by high performance liquid chromatography(HPLC)on Chiralpak AD-H column and Chiralpak AS-H column with the mobile phase consisted of isopropanol and n-hexane.The detection wavelength and the flow rate were set at 254 nm and 0.7 mL/min,respectively.The effects of proportion of organic additives,alcohol displacer and temperature on the separation were investigated.The results indicated that eight chiral drugs were separated on chiral stationary phase of amylase ramification in normal phase chroma tographic system.The chromatographic retention and resolution of enantiomers were adjusted by factors,including the changes of the concentration of alcohol displacer in mobile phase,organic alkaline modifier and column temperature.It was shown that the resolution was improved with reducing concentration of alcohol displacer.When the concentration of organic alkaline modifier was 0.2%,the resolution and the peak shape were fairly good.Most racemates mentioned above had the best resolution at column temperature of 25℃.The best temperature should be kept unchanged in the process of separation so as to obtain stable separation results. | Yan Wang Ying Zhou Chao Ma Beibei Yang Ru Feng Yiying Zhang Jie Fu Wenjing Chen Yupeng Sun Jingyi Ma Qiming Zhang Yulin Deng Yukui Zhang Wenyi He | 2012 | Acta Pharmaceutica Sinica B2012，2，5： | 3 |
| 14 | Proteomic study provides new clues for complications of hemodialysis caused by dialysis membrane显示文摘The complications of hemodialysis accompanied the hemodialysis and threaten the patients’life.Besides the loss of nutrient substance,such as amino acid and vitamin,we found new clues that the adsorbed proteins on common-used polysulfone-based dialysis membrane might be the reason according to the qualitative proteomic study by ionic liquid assisted sample preparation method.Our results indicated that the adsorbed proteins on the membrane were related with complement activation,blood coagulation,and leukocyte-related biological process.The quantitative proteome further demonstrated some significant changes of signal proteins in the post-dialysis plasma after the hemodialysis,such as beta-2-microglobulin and platelet factor-4,which would further verify these new clues. | Kaiguang Yang Jianhui Liu Jingdi Sun Yuan Zhou Qun Zhao Senwu Li Lukuan Liu Lihua Zhang Jiuyang Zhao Yukui Zhang | 2017 | Science Bulletin2017，62，18： | 2 |
| 15 | Drought Resistance of Twelve Desert Shrubs at Seedling Stage of Ulan Buh Desert Ecosystem显示文摘[Objective] To establish drought resistance evaluation index system of desert shrubs,and provide scientific support for selecting quality tree species.[Method] Taking 2-year-old seedlings of 12 desert shrubs in Ulan Buh Desert ecosystem as the test materials,7 water physiological indexes were tested,principal component analysis and cluster analysis were applied to explore drought resistance of the shrubs.[Results](a) Water potential of Ephedra distachya Linn.,Nitraia tangutorum Bobr.,Caragana korshinski Kom.was lower than that of the other 9 species;bound water content(V_a) and bound water/free water ratio(V_a/V_s) of Zygophyl um xanthoxylon Maxim.was 64.20% and 3.3,higher than the others';transpiration rate of Atraphaxis bracteata A.Los.,Nitraia tangutorum Bobr.and Tamarix elongata Ldb.was significantly lower than the others';constant weight time of Haloxylon ammodendron(C.A.Mey.) Bunge and Ephedra distachya Linn.was the longest(144 h);residual moisture content of Ammopiptanthus mongolicus Maxim.was the highest(44.80%).(b) Water potential,bound water/free water(V_a/V_s),residual moisture content,bound water,constant weight time,and transpiration rate had great impact on drought resistance of plant,and the accumulative variance contribution rate achieved 87.59%.[Conclusion] According to the drought resistance,the 12 species were classified into 3 categories,namely shrubs with strong drought resistance(Ephedra distachya Linn.),shrubs with moderate drought resistance(Haloxylon ammodendron(C.A.Mey.) Bunge,Nitraia tangutorum Bobr.,and Zygophyllum xanthoxylon Maxim.);shrubs with poor drought resistance(Hedysarunn scoparium Fisch,Hedysarum mongolicum Turcz.,Tamarix elongata Ldb.,Caragana korshinskii Kom.,Ammopiptanthus mongolicus Maxim.,Atraphaxis bracteata A.Los.,Cal igonum mongolicum Mattei.,and Caragana microphylla Lam.). | JIA Yukui LUO Fengmin ZHANG Jingbo GAO junliang XIN Zhiming LIU Fang | 2016 | Journal of Landscape Research2016，8，6： | 2 |
| 16 | Micro-milling of Pyramid Structured Surface for Implant Application显示文摘Surface modification,as a promising approach to improve biocompatibility of biomaterials,has captured extensive close attention among many researchers.Here,micro-milling technology was used in constructing pyramid micro-structures on the surface of Ti-6Al-4Vimplant.Cutting parameters,including spindle speed,feed rate and depth of cut,were optimized to control the generation of burrs.In addition,low melting point alloy was selected to extend the boundary of the workpiece as supporting material to prevent the generation of top burrs.The surface topographies were characterized using scanning electron microscope and laser scanning microscope.Results showed that the dimension of burrs decreased with the decrease of depth of cut,and the size of burrs decreased with the increase of feed rate.Moreover,burrs nearly not appeared on both sides of the micro-grooves machined with low melting point alloy(LMPA)coating.Pyramid micro-structure on the workpiece surface was built successfully by combining optimized cutting parameters(S=35kr/min,Vf=60mm/min,ap=5μm)and LMPA coating. | Wang Teng Wan Yi Kou Zhaojun Cai Yukui Liu Zhanqiang Jiang Minqiang | 2017 | Transactions of Nanjing University of Aeronautics and Astronautics2017，34，4： | 2 |
| 17 | Identification and characterization of BoPUB3: a novel interaction protein with S-locus receptor kinase in Brassica oleracea L.显示文摘Armadillo repeat containing 1 (ARC1) is phosphorylated by S-locus receptor kinase (SRK) and functions as a positive regulator in self-incompatibility response of Brassica. However, ARC1 only causes partial breakdown of the self-incompatibility response, and other SRK downstream factors may also participate in the self-incompatibility signaling pathway. In the present study, to search for SRK downstream targets, a plant U-box protein 3 (BoPUB3) was identified from the stigma of Brassica oleracea L. BoPUB3 was highly expressed in the stigma, and its expression was increased with the stigma development and reached to the highest level in the mature-stage stigma. BoPUB3, a 76.8-kDa protein with 697 amino acids, is a member of the PUB-ARM family and contains three domain characteristics of BoARC1, including a U-box N-terminal domain, a U-box motif, and a C-terminal arm repeat domain. The phylogenic tree showed that BoPUB3 was close to BoARC1. The synteny analysis revealed that B. oleracea chromosomal region containing BoPUB3 had high synteny with the Arabidopsis thaliana chromosomal region containing AtPUB3 (At3G54790). In addition, the subcellular localization analysis showed that BoPUB3 primarily localized in the plasma membrane and also in the cytoplasm. The combination of the yeast two-hybrid and in vitro binding assay showed that both BoPUB3 and BoARC1 could interact with SRK kinase domain, and SRK showed much higher level of β-galactosidase activity in its interaction with BoPUB3 than with BoARC1. These results implied that BoPUB3 is a novel interactor with SRK, which lays a basis for further research on whether PUB3 participates in the self-incompatibility signaling pathway. | Songmei Shi Qiguo Gao Tonghong Zuo Zhenze Lei Quanming Pu Yukui Wang Guixi Liu Xinhua He Xuesong Ren Liquan Zhu | 2019 | Acta Biochimica et Biophysica Sinica2019，51，7： | 2 |
| 18 | High-efficiency Approach for Fabricating MTE Rotor by Micro-EDM and Micro-extrusion显示文摘Micro-gas turbine engine(MTE) rotor is an important indicator of its property, therefore, the manufacturing technology of the microminiature rotor has become a hot area of research at home and abroad. At present, the main manufacturing technologies of the MTE rotor are directed forming fabrication technologies. However, these technologies have a series of problems, such as complex processing technology high manufacturing cost, and low processing efficiency, and so on. This paper takes advantage of micro electric discharge machining(micro-EDM) in the field of microminiature molds manufacturing, organizes many processing technologies of micro-EDM reasonably to improve processing accuracy, presents an integrated micro-EDM technology and its process flow to fabricate MTE rotor die, and conducts a series of experiments to verify efficiency of this integrated micro-EDM. The experiments results show that the MTE rotor die has sharp outline and ensure the good consistency of MTE rotor blades. Meanwhile, the MTE rotor die is applied to micro extrusion equipment, and technologies of micro-EDM and micro forming machining are combined based on the idea of the molds manufacturing, so the MTE rotor with higher aspect ratio and better consistency of blades can be manufactured efficiently. This research presents an integrated micro-EDM technology and its process flow, which promotes the practical process of MTE effectively. | GENG Xuesong CHI Guanxin WANG Yukui WANG Zhenlong | 2014 | Chinese Journal of Mechanical Engineering2014，27，4： | 2 |
| 19 | An analysis of residual stress fields caused by shot peening 显示文摘 | Gao Yukui Yao Mei Li Jinkui | 2002 | Physical Metallurgy and Materials Science2002，33，6： | 1 |
| 20 | MICROSTRUCTURES AND MECHANICAL PROPERTIES OF Ti(C,N) FILMS DEPOSITED BY PEMSIP显示文摘1INTRODUCTIONPlasmaEnhancedMagnetronSputeringIonPlating(PEMSIP)isanewkindofPhysicalVaporDeposition(PVD),whichbasedontraditio... | Li, Sheng Wang, Yukui Wu, Enxi Han, Huimin | 1999 | 中国有色金属学会会刊:英文版1999，9，2： | 1 |
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