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| 1 | From concept to reality-A review to the primary test stand and its preliminary application in high energy density physics显示文摘Pulsed power technology,whereas the electrical energy stored in a relative long period is released in much shorter timescale,is an efficient method to create high energy density physics(HEDP)conditions in laboratory.Around the beginning of this century,China Academy of Engineering Physics(CAEP)began to build some experimental facilities for HEDP investigations,among which the Primary Test Stand(PTS),a multi-module pulsed power facility with a nominal current of 10 MA and a current rising time~90 ns,is an important achievement on the roadmap of the electro-magnetically driven inertial confinement fusion(ICF)researches.PTS is the first pulsed power facility beyond 10 TW in China.Therefore,all the technologies have to be demonstrated,and all the engineering issues have to be overcome.In this article,the research outline,key technologies and the preliminary HEDP experiments are reviewed.Prospects on HEDP research on PTS and pulsed power development for the next step are also discussed. | Jianjun Deng Weiping Xie Shuping Feng Meng Wang Hongtao Li Shengyi Song Minghe Xia Ji Ce An He Qing Tian Yuanchao Gu Yongchao Guan Bin Wei Xianbin Huang Xiaodong Ren Jiakun Dan Jing Li Shaotong Zhou Hongchun Cai Siqun Zhang Kunlun Wang Qiang Xu Yujuan Wang Zhaohui Zhang Guilin Wang Shuai Guo Yi He Yiwei Zhou Zhanji Zhang Libing Yang Wenkang Zou | 2016 | Matter and Radiation at Extremes2016，1，1： | 19 |
| 2 | Optimization of mechanical properties, biocorrosion properties and antibacterial properties of wrought Ti-3Cu alloy by heat treatment显示文摘Previous study has shown that Ti-3Cu alloy shows good antibacterial properties(>90%antibacterial rate),but the mechanical properties still need to be improved.In this paper,a series of heat-treatment processes were selected to adjust the microstructure in order to optimize the properties of Ti-3Cu alloy.Microstructure,mechanical properties,biocorrosion properties and antibacterial properties of wrought Ti-3Cu alloy at different conditions was systematically investigated by X-ray diffraction,optical microscope,scanning electron microscope,transmission electron microscopy,electrochemical measurements,tensile test,fatigue test and antibacterial test.Heat treatment could significantly improve the mechanical properties,corrosion resistance and antibacterial rate due to the redistribution of copper elements and precipitation of Ti2Cu phase.Solid solution treatment increased the yield strength from 400 to 740MPa and improved the antibacterial rate from 33%to 65.2%while aging treatment enhanced the yield strength to 800e850MPa and antibacterial rate(>91.32%).It was demonstrated that homogeneous distribution and fine Ti2Cu phase plays a very important role in mechanical properties,corrosion resistance and antibacterial properties. | Mianmian Bao Ying Liu Xiaoyan Wang Lei Yang Shengyi Li Jing Ren Gaowu Qin Erlin Zhang | 2018 | Bioactive Materials2018，3，1： | 7 |
| 3 | Lipids of sulfate-reducing bacteria and sulfur-oxidizing bacteria found in the Dongsheng uranium deposit显示文摘U-bearing sandstones from the Dongsheng deposit in Ordos Basin contain abundant C15-C18 fatty acids. The fatty acids may have been derived from modern and ancient organisms including organisms from the intervals of U mineralization. A certain amount of i15:0, a15:0, a17:0 fatty acids coexist with small amounts of i17:1ω7c and 10me16:0, characteristic biomarkers of Desulfovibrio and Desulfobacter sp., respectively. This indicates the existence of sulfate-reducing bacteria (SRB) in the sandstones. The presence of sulfur-oxidizing bacteria (SOB), such as Beggiatoa and Thioploca, is indicated by significant amounts of 16:1ω7c and 18:1ω7c fatty acids. The existence of the SRB in the deposit, as inferred from the fatty acids, is consistent with results from fossilized microorganisms and isotopic compositions of ore-stage pyrite. This suggests that the environment may have been favorable for the SRB to grow since ore formation (9.8-22 Ma). The bacteria may have degraded hydrocarbons directly, or indirectly utilized hydrocarbons degraded by oxic microbes in the deposits. This process may have produced 12C-rich calcite and prominent baseline humps of unresolved complex mixtures (UCM), and 25-demethylated hopanes and tricyclic terpanes. The existence of sulfur-oxidizing bacteria and sulfate-reducing bacteria in the deposit may have resulted in bacterial sulfate reduction to sulfide, re-oxidization of the sulfide to sulfate and subsequent reduction of the sulfate to sulfide. This assertion is supported by ore-stage pyrite with δ34S values as low as-39.2‰, and the lightest sulfate (about 11‰) measured during the Phanerozoic, a difference of more than 46‰. | JIANG Lei CAI ChunFang ZHANG YongDong MAO ShengYi SUN YongGet LI KaiKai XIANG Lei ZHANG ChunMing | 2012 | Chinese Science Bulletin2012，57，11： | 6 |
| 4 | Pollen-mediated gene flow in Chinese commercial fields of glufosinate-resistant canola (Brassica napus)显示文摘One of the most pressing issues surrounding transgenic oilseed rape cultivation is the potential impact of GM genes entering neighboring non-GM oilseed rape plants, related weeds or closely related wild relatives. Following the principle of a case-by-case for transgenic crop safety assessment, we designed experiments to study pollen-mediated gene flow from herbicide-resistant transgenic oilseed rape to Chinese commercial varieties. The pollen dispersal was detected as the progeny of recipient plants that were identified as glufosinate resistant. The results indicated that pollen dispersal occurred up to 2000 m and its rate sharply decreased as the distance from the pollen source increased. However, the rate of long-distance pollen dispersal from 33 to 2000 m was less than 0.015% and did not present a gradual decrease, indicating the randomization of dispersal and pollination. Most pollen dispersed within a 4.5 m area around the transgenic pollen source plot, with a maximum of 1.19% at the sampling site of 1.4 m. Wind direction significantly affected the direction and the distance of pollen dispersal, resulting in the more and farther dispersal in southwest direction. However, the number of potentially pollinating bees was not correlated with direction and distance from the pollen source plot, suggesting that bee density and distribution would not contribute to the differences in pollen dispersal among different directions. This paper is the first report on research in a large-scale experiment of pollen-mediated gene flow un-der the China’s environmental conditions and provided scientific evidence for the effective commer-cialization of transgenic oilseed rape and its safe management. Our results also provided important data on pollen spatial distribution pattern. | CAI Li ZHOU BiWen GUO XueLan DONG CaiHua HU XiaoJia HOU MingSheng LIU ShengYi | 2008 | Chinese Science Bulletin2008，53，15： | 5 |
| 5 | Restraint of mid-spatial frequency error in magnetorheological finishing (MRF) process by maximum entropy method显示文摘In order to restrain the mid-spatial frequency error in magnetorheological finishing (MRF) process, a novel part-random path is designed based on the theory of maximum entropy method (MEM). Using KDMRF-1000F polishing machine, one flat work piece (98 mm in diameter) is polished. The mid-spatial frequency error in the region using part-random path is much lower than that by using common raster path. After one MRF iteration (7.46 min), peak-to-valley (PV) is 0.062 wave (1 wave =632.8 nm), root-mean-square (RMS) is 0.010 wave and no obvious mid-spatial frequency error is found. The result shows that the part-random path is a novel path, which results in a high form accuracy and low mid-spatial frequency error in MRF process. | DAI YiFan SHI Feng PENG XiaoQiang LI ShengYi | 2009 | Science China(Technological Sciences)2009，52，10： | 5 |
| 6 | Mutation of the PHYTOENE DESATURASE 3 gene causes yellowish-white petals in Brassica napus显示文摘Oilseed rape (Brassica napus) with yellow flowers is an attractive ornamental landscape plant during the flowering period,and the development of different petal colors has become a breeding objective.Although yellowish flower color is a common variant observed in field-grown oilseed rape,the genetics behind this variation remains unclear.We obtained a yellowish-white flower (ywf) mutant from Zhongshuang 9 (ZS9) by ethyl methanesulfonate mutagenesis (EMS) treatment.Compared with ZS9,ywf exhibited a lower carotenoid content with a reduced and defective chromoplast ultrastructure in the petals.Genetic analysis revealed that the yellowish-white trait was controlled by a single recessive gene.Using bulked-segregant analysis sequencing (BSA-seq) and kompetitive allele-specific PCR(KASP),we performed map-based cloning of the ywf locus on chromosome A08 and found that ywf harbored a C-to-T substitution in the coding region,resulting in a premature translation termination.YWF,encoding phytoene desaturase 3 (PDS3),was highly expressed in oilseed rape petals and involved in carotenoid biosynthesis.Pathway enrichment analysis of the transcriptome profiles from ZS9 and ywf indicated the carotenoid biosynthesis pathway to be highly enriched.Further analyses of differentially expressed genes and carotenoid components revealed that the truncated Bna A08.PDS3 resulted in decreased carotenoid biosynthesis in the mutant.These results contribute to an understanding of the carotenoid biosynthesis pathway and manipulation of flower-color variation in B.napus. | Chuanji Zhao Luqman Bin Safdar Meili Xie Meijuan Shi Zhixue Dong Li Yang Xiaohui Cheng Yueying Liu Zetao Bai Yang Xiang Chaobo Tong Junyan Huang Lijiang Liu Shengyi Liu | 2021 | The Crop Journal2021，9，5： | 3 |
| 7 | Stitching algorithm for ion beam figuring of optical mirrors显示文摘A novel stitching machining method for ion beam figuring of optical mirrors is presented in this paper. Problems that should be dealt with in the stitching process such as shaping principle,algorithm for dwell time calculation,parameter identification and compensation for positioning errors are discussed. Based on Computer Controlled Optical Surfacing(CCOS)principle,the finite field nonlinear model is deduced from the stitching shaping mechanism;with the superposition property in the model,a modified Richardson-Lucy iterative algorithm is presented to deconvolute the dwell time for the stitching process;the effect of the positioning errors and the removal rate on the machining accuracy and shape is modeled and then the identification and compensation algorithm for these parameters is proposed based on this model.With these studies,shaping theory and algorithm are constructed,and then the stitching process for ion beam figuring comes into being.Figuring experiments are made on planar samples;the process convergence ratio is 10,which is similar to that in full aperture figuring.Theo- retical and experimental studies indicate that the stitching theory and algorithm in the ion beam figuring process presented in this paper are a novel method for fabrication of precision mirrors with lower cost. | ShengYi Li ChangJun Jiao XuHui Xie Lin Zhou | 2009 | Science China(Technological Sciences)2009，52，12： | 3 |
| 8 | A novel hydrogen peroxide biosensor based on the BPT/AuNPs/graphene/HRP composite显示文摘A novel hydrogen peroxide biosensor based on the BPT/AuNPs/graphene/HRP composite was developed. Firstly, graphene was prepared under the protection of polyvinylpyrrolidone (PVP), and then the AuNPs/graphene composite was synthesized via in situ decoration. Using biphenyldimethanethiol (BPT) as a connector, the AuNPs/graphene composite was immobilized on the surface of the Au electrode, and whereafter the horseradish peroxidase (HRP) was decorated on the surface of the composite by adsorption. The morphology and structure of the products were characterized by XRD, SEM, TEM and UV-visible spectroscopy. The electrocatalytic performance of the resulting BPT/AuNPs/grapheme/HRP composite (namely, biosensor) was studied by electrochemical instrument. The results show that the biosensor has high sensitivity and fast response to H2O2. In the solution of pH 7.4 with potential -0.2V, the linear response of the biosensor to H2O2 ranges from 5.0×10-6 to 2.5×10-3M with the detection limit of 1.5×10-6M. | WANG Teng ZHU Yi LI Gai ZHANG ShengYi SONG JiMing MAO ChangJie WU JieYing JIN BaoKang TIAN YuPeng | 2011 | Science China Chemistry2011，54，10： | 3 |
| 9 | Frequency-domain analysis of computer-controlled optical surfacing processes显示文摘Mid-high spatial frequency errors are often induced on optical surfaces polished by computer-controlled optical surfacing (CCOS) processes. In order to efficiently remove these errors, which would degrade the performances of optical systems, the ability of a CCOS process to correct the errors have been investigated based on the convolution integral model in view of the availability of material removal. To quantify the ability, some conceptions, such as figure correcting ability and material removal availability (MRA), have been proposed. The research result reveals that the MRA of the CCOS process to correct a single spatial frequency error is determined by its tool removal function (TRF), and it equals the normalized amplitude spectrum of the Fourier transform of its TRF. Finally, three sine surfaces were etched using ion beam figuring (IBF), which is a typical CCOS process. The experimental results have verified the theoretical analysis. The employed method and the conclusions of this work provide a useful mathematical basis to analyze and optimize CCOS processes. | ZHOU Lin DAI YiFan XIE XuHui LI ShengYi | 2009 | Science China(Technological Sciences)2009，52，7： | 2 |
| 10 | MOBILITY EVALUATION AND INNOVATION OF WHEELED SPACE ROVER显示文摘月亮的漫游者的使命和函数要求被分析,基于虚拟原型技术,活动性评估理论和方法因为 wheeled 空格漫游者被建议,它提供一个新方法学习月亮的漫游者的创新设计。基于上述理论系统,一个创新月亮的漫游者暂停系统,采用 two-crank-slidermechanism,被建议,并且它的动力学模型被创造。采用虚拟原型技术,扎根的适应性,在障碍上能力和漫游者的开车平稳在虚拟原型软件亚当斯被评估。分析结果证明漫游者提供活动性的高度。 | SHANG Jianzhong LU0 Zirong LI Shengyi TANG Li | 2006 | Chinese Journal of Mechanical Engineering2006，19，2： | 2 |
| 11 | Design and Characterization of a Novel Z-axis Quartz Cross-fork Micromachined Gyroscope显示文摘The existing researches on quartz gyroscope mainly focus on the structure design of the tuning fork, which aim at obtaining a better vibration characterization. However, the fabrication of complicated structure is a challenge for present processes, and the imperfect fabrication process seriously affects the performances of the sensors. In this paper, a novel quartz cross-fork structure micromachined gyroscope is proposed. The sensor has a simple structure in x-y plane of quartz crystal. Unlike other quartz gyroscopes, the proposed gyroscope is based on shear stress detection to sense Coriolis' force rather than normal stress detection. This feature can simplify the sensing electrode patterns and miniaturize the structure easily. Then the mechanical analysis of the structure is discussed. In order to obtain high sensitivities and uniform characteristics between different structures, the sensing beam is designed to be tapered, and the taper should be appreciably greater than 1°. This scheme is validated by finite element analysis software. The dynamic characteristic of the structure is analyzed by lumped parameter model. The dynamic stress in the beam and the detection sensitivity are deduced to optimize the structure parameter of gyroscope. Finally, the gyroscope is fabricated by quartz anisotropic wet etching. The prototype is characterized as follows. The drive mode frequency is 13.38 kHz, and the quality factor is about 900 in air. The scale factor is 1.45 mV/((°) s -1 ) and the nonlinearity is 3.6% in the dynamic range of ±200°/s. Process and test results show that the proposed quartz gyroscope can achieve a high performance at atmosphere pressure. The research can simplify the fabrication of the quartz gyroscope, and is taken as a novel method for the design of quartz gyroscope. | XIE Liqiang WU Xuezhong LI Shengyi WANG Haoxu TAO Yi DONG Peitao | 2011 | Chinese Journal of Mechanical Engineering2011，24，1： | 2 |
| 12 | Relationship between subsurface damage and surface roughness of optical materials in grinding and lapping processes 显示文摘 | LI Shengyi WANG Zhuo WU Yulie | 2008 | Journal of Materials Processing Technology2008，205，13： | 1 |
| 13 | TWO-COORDINATE DUAL-SERVO CONTOURERROR COMPENSATION TECHNOLOGY FOR ULTRA-PRECISION MANUFACTURING显示文摘A technology of two-coordinate dual-servo(TCDS) is proposed. Using this technology which is based on error compensation, workpieces of higher contour accuracy could he turned on ultra-precision machine tool with Poor dynamic performances. The principle, constitute and operation of a TCDS system are described. Mathematical proof and experiments are achieved in addition. | Zhu Jianzhong Zhang Mingliang Li Shengyi (School of Mechatronics Engineering and Automation National University of Defense Technology) | 2000 | Chinese Journal of Mechanical Engineering2000，13，1： | 1 |
| 14 | High accuracy error separation technique for on-machine measuring straightness显示文摘 | Yin Ziqiang Li Shengyi | 2006 | Precision Engineering 302006，，： | 1 |
| 15 | Empirical research on construction of a measurement framework for tourism carbon emission in China显示文摘According to the logic process of carbon reduction in China which arises from the measurement to reduction,from reduction to offsetting,the measurement of carbon emission in the tourism industry was the first and key step.Based on the life cycle assessment theory and input-output analysis,this article used economic and environmental measurement technologies,The System of National Accounting(SNA),Tourism Satellite Account(TSA),System of Integrated Environment and Economic Accounting(SEEA),and so on,and built up a top-down carbon emission analysis framework for the tourism industry and estimated carbon emission of the tourism industry in China in 2007.The finding showed that the total carbon emission of the tourism industry in China in 2007 was 169.78 million tons,covering 2.71%of carbon emission of all industries in China in 2007,and 2.44%of the total carbon emission in China in 2007.The direct carbon emission of the tourism industry in China in 2007 was 73.56 million tons,including transportation(50.14 million tons),sightseeing(1.33 million tons),lodging(4.19 million tons),accommodation(4.73 million tons),shopping(8.14 million tons),entertainment(0.67 million tons),communication(0.45 million tons),and others(3.90 million tons).The indirect carbon emission of the tourism industry in China in 2007 was 96.23 million tons,mostly contributed by coking,gas,and petroleum processing industries,transportation and warehousing industry,machinery and equipment manufacturing industry,and food manufacturing and tobacco processing industry,which covered 57%. | Yongde Zhong Shengyi Shi Shihong Li Fen Luo Weiliang Luo Qiong Xiao | 2015 | Chinese Journal of Population,Resources and Environment2015，13，3： | 1 |
| 16 | The Role of Dihydroresveratrol in Enhancing the Synergistic Effect of Ligilactobacillus salivarius Liol and Resveratrol in Ameliorating Colitis in Mice显示文摘Currently approved therapeutical strategies for inflammatory bowel diseases(IBD)suffer from variable efficacy and association with risk of serious side effects.Therefore,efforts have been made in searching for alternative therapeutics strategies utilizing gut microbiota manipulation.In this study,we show that the probiotic strain Ligilactobacillus salivarius Li01(Li01)and the phytochemical prebiotic resveratrol(RSV)have synergistic effect in ameliorating colitis in mice.Oral coadministration of Li01(109 CFU/d)and RSV(1.5 g/kg/d)promoted restoration of various inflammatory injuries and gut microbiota composition,exhibiting a favorable anti-inflammatory effect in DSS-induced colitis mice.The combination treatment was associated with reductions in the levels of proinflammatory cytokines IL-1βand IL-6 and increases in the levels of the anti-inflammatory cytokine IL-17A in mouse serum.Moreover,the combination treatment was found to alter the composition and metabolism of the gut microbiota,especially influencing the production of short chain fatty acids and anti-inflammatory related molecules.The mechanism underlying the improved anti-inflammatory effect from the RSV and Li01 combination treatment was found to be associated with the environmental sensor mammalian aryl hydrocarbon receptor(AHR)and tryptophan metabolism pathway.Administration of RSV in combination with Li01 in different mouse model led to enhanced conversion of RSV into metabolites,including dihydroresveratrol(DHR),resveratrol-sulfate,and resveratrol-glucuronide.DHR was found to be the dominant metabolite of RSV in conventional and colitis mice.An increased DHR/RSV ratio was confirmed to activate AHR and contribute to an enhanced anti-inflammatory effect.DHR is considered as a potential AHR ligand.The DHR/RSV ratio also affected the serotonin pathway by controlling the expression of Tph1,SERT,and 5-HT7R leading to amelioration of colitis in mice.Our data suggest that treatment with a combination of Li01 and RSV has potential as a therapeutic strategy for IBD;further investigation of this combination in clinical settings is warranted. | Yiqiu Fei Shuobo Zhang Shengyi Han Bo Qiu Yanmeng Lu Weixing Huang Fang Li Deying Chen Bjorn Berglund Hang Xiao Lanjuan Li Mingfei Yao | 2022 | Research2022，，4： | 1 |
| 17 | Multiscale evolution mechanism of sandstone under wet-dry cycles of deionized water:From molecular scale to macroscopic scale显示文摘Water is the most abundant molecule found on the earth’s surface and is a key factor in multiscale rock destruction.However,given the fine-grained nature of rock and the complexity of its internal structure,the microstructural evolution of rock under the action of water has not yet been elucidated in detail,and little is understood about the relationship between the rock structure and solideliquid unit.A variety of techniques were used in this study to track the mechanical properties,pore and crack characteristics,and mineral structure degradation characteristics of sandstone at different stages under the action of deionized water,and the evolution mechanisms of the microstructure were analyzed at the molecular scale.The results showed that during the watererock interaction process,water was adsorbed onto the surface of dolomite minerals and the hydrophilic surface of clay minerals,forming a high-density hydrogen bond network.However,different mineral surface structures had different water adsorption structures,resulting in the strain of the dense clay mineral aggregates under expansion action.Stress concentrated at crack tips under the capillary force of dolomite minerals(very weak dolomite dissolution).These effects resulted in a substantial increase in the number of small pores and enhancements in poreecrack connectivity,and the rock strength exhibited varying degrees of decline at different stages of wet-dry cycles.In general,the results of this paper will help to further elucidate the internal connections between molecular-scale and macroscale processes in rock science. | Jie Meng Changdong Li Jia-Qing Zhou Zihan Zhang Shengyi Yan Yahui Zhang Dewei Huang Guihua Wang | 2023 | Journal of Rock Mechanics and Geotechnical Engineering2023，15，5： | 1 |
| 18 | Design of Ion Beam Figuring Machine for Optics Mirrors显示文摘 | Jiao Changjun Xie Xuhui Li Shengyi | 2008 | Key Engineering Materials2008，，： | 1 |
| 19 | High accuracy error separation technique for on-machine measuring straightness 显示文摘 | Yin Ziqiang Li Shengyi | 2006 | Precision Enginee- ring2006，30，2： | 1 |
| 20 | A Hybrid Clustering Algorithm显示文摘 | Jiang Shengyi Li Xia | 2009 | Fuzzy Systems and Knowledge Discovery2009，，1： | 1 |
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