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| 1 | Genetic Variation of the VP1 Gene of the Virulent Duck Hepatitis A Virus Type 1(DHAV-1) Isolates in Shandong Province of China显示文摘To investigate the relationship of the variation of virulence and the external capsid proteins of the pandemic duck hepatitis A virus type 1(DHAV-1) isolates,the virulence,cross neutralization assays and the complete sequence of the virion protein 1(VP1) gene of nine virulent DHAV-1 strains,which were isolated from infected ducklings with clinical symptoms in Shandong province of China in 2007-2008,were tested.The fifth generation duck embryo allantoic liquids of the 9 isolates were tested on 12-day-old duck embryos and on 7-day-old ducklings for the median embryonal lethal doses(ELD 50 s) and the median lethal doses(LD 50 s),respectively.The results showed that the ELD 50 s of embryonic duck eggs of the 9 DHAV-1 isolates were between 1.9 × 10 6 /mL to 1.44 × 10 7 /mL,while the LD 50 s were 2.39 × 10 5 /mL to 6.15 × 10 6 /mL.Cross-neutralization tests revealed that the 9 DHAV-1 isolates were completely neutralized by the standard serum and the hyperimmune sera against the 9 DHAV-1 isolates,respectively.Compared with other virulent,moderate virulent,attenuated vaccine and mild strains,the VP1 genes of the 9 strains shared 89.8%-99.7% similarity at the nucleotide level and 92.4%-99.6% at amino acid level with other DHAV-1 strains.There were three hypervariable regions at the C-terminus(aa 158-160,180-193 and 205-219) and other variable points in VP1 protein,but which didn't cause virulence of DHAV-1 change. | Jiming Gao Junhao Chen Xingkui Si Zhijing Xie Yanli Zhu Xingxiao Zhang Shujing Wang Shijin Jiang | 2012 | Virologica Sinica2012，27，4： | 10 |
| 2 | On the Blaschke isoparametric hypersurfaces in the unit sphere with three distinct Blaschke eigenvalues显示文摘An immersed umbilic-free submanifold in the unit sphere is called Blaschke isoparametric if its Mbius form vanishes identically and all of its Blaschke eigenvalues are constant. In this paper,we give a complete classification for all Blaschke isoparametric hypersurfaces with three distinct Blaschke eigenvalues. | HU ZeJun LI XingXiao ZHAI ShuJie | 2011 | Science China Mathematics2011，54，10： | 6 |
| 3 | Transmission identification of Escherichia coli aerosol in chicken houses to their environments using ERIC-PCR显示文摘In order to study E. coli aerosol spreading from chicken houses to their surrounding air, air samples, including indoor and outdoor air (upwind 10 and 50 m as well as downwind 10, 50, 100, 200 and 400 m away) of 5 chicken houses were collected using six-stage Andersen microbial samplers and Reuter-Centrifugal samplers (RCS). E. coli concentrations (CFU/m3 air) collected from different sampling sites were calculated. E. coli strains from chicken feces samples were also isolated. Furthermore, the enterobacterial repetitive intergenic consensus (ERIC)-PCR method was applied to amplify the isolated E. coli strain DNA samples. Through the genetic similarity analyses of the E. coli obtained from different sampling sites, the spreading of bioaerosol from animal houses to the ambient air was characterized. The results showed that the isolated E. coli concentrations in indoor air (9―63 CFU/m3) in 5 chicken houses were higher than those in upwind and downwind air, but there were no significant differences between the indoor and downwind sites 10 m away from all the 5 houses (P>0.05). The phylogenetic tree indicated that a part of the E. coli (34.1%) isolated from indoor air had 100% similarity with those isolated from feces, and that most of E. coli isolated (54.5%) from downwind at 10, 50, 100 or even 200 m had 100% similarity with those isolated from indoor air or feces too. But those isolated from upwind air had a lower similarity (73%―92%) with corresponding strains isolated from indoor air or feces. Our results suggested that some strains isolated from downwind air and indoor air originated in the chicken feces, but most of isolates obtained from upwind air samples did not come from the chicken feces or indoor air. Effective hygienic measures should be taken in animal farms to prevent or minimize downwind spreading of microorganism aerosol. | DUAN HuiYong CHAI TongJie CAI YuMei ZHONG ZhaoBing YAO MeiLing ZHANG XingXiao | 2008 | Science China(Life Sciences)2008，51，2： | 5 |
| 4 | Design of flower transplanting mechanisms based on double planet carrier non-circular gear train with complete rotation kinematic pair显示文摘In view of the problems of the existing mechanisms based on 2R open-chain planetary gear train for seedling transplanting,such as the bad tracking flexibility,low positioning accuracy,and high structure design difficulties of the mechanisms based on 3R open-chain planetary gear train for seedling manipulation.In this paper,a transplanting mechanism based on the solution domain synthesis of a 3R open-chain-based complete rotation kinematic pair,a gear train with a single cycle integral rotating pair,is designed.The Burmester curve equation is derived from the given transplanting trajectory and four exact poses corresponding to each other on the rotation center.Then,the open-chain road model of the 3R complete rotation kinematic pair is obtained under the constraint governed by the judgment condition of the hinge integral rotating pair.Meanwhile,combined with our developed in-house optimization software,the solution to the optimal parameters for the transplanting mechanism can be optimized according to the target trajectory.Finally,the feasibility of the design method is verified by transplanting testing,where kale seedlings with ages of about 20 d and heights of about 80-120 mm are used.The experimental results show that the actual motion trajectory of the prototype is basically identical to the theoretical trajectory,validating the feasibility of transplanting mechanism design,parts processing,and test-bed construction.Through the statistical analysis,the average success rate of transplanting is 90.625%,and the reliability of designed mechanism is satisfied.This study provides a promising solution for the seedling transplanting of two-planet scaffold pots. | Xiong Zhao Xingxiao Ma Hongwei Liao Yongsen Xiong Yadan Xu Jianneng Chen | 2022 | International Journal of Agricultural and Biological Engineering2022，15，3： | 2 |
| 5 | The blow-up of the conformal mean curvature flow显示文摘In this paper, we introduce and study the conformal mean curvature flow of submanifolds of higher codimension in the Euclidean space R^n. This kind of flow is a special case of a general modified mean curvature flow which is of various origination. As the main result, we prove a blow-up theorem concluding that, under the conformal mean curvature flow in R^n, the maximum of the square norm of the second fundamental form of any compact submanifold tends to infinity in finite time. Furthermore, we also prove that the external conformal forced mean curvature flow of a compact submanifold in R^n with the same pinched condition as Andrews-Baker's will be convergent to a round point in finite time. | Xingxiao Li Di Zhang | 2020 | Science China Mathematics2020，63，4： | 1 |
| 6 | A2 ILu state- intermediated two- photon dissociation of CS2+ via the first channel 显示文摘 | Limin Zhang J un Chen Haifeng Xu Jinghua Dai Shilin Liu and Xingxiao Ma | 2001 | 114(24): 107682001，114，10： | 1 |
| 7 | China-invented vaccines against vacdnepreventable diseases for Belt&Road countries显示文摘Vaccine is a principal and highly cost-effective medical method on controlling infectious diseases and improving population health.Various vaccines are eagerly needed in the low-income countries along the Belt&Road.With the good quality to reach WHO prequalification standard,and the abundant capacity to fulfill the demand from market abroad,upon the platform of China-proposed'the Belt&Road Initiative',the vaccines manufactured in China are exporting to countries worldwide.The independent innovative vaccines'R&D system,which fruited a series of innovative infectious diseases vaccines(EV71 vaccine,sIPV,HEV,Ebola vaccine,etc.)to be launched in Chinese market,indicates that China has developed rapidly from'a great vaccine-production country'to'a powerful vaccine-innovation country'.The implementation of National Innovation-driven Development Strategy would further push forward the developm ent and internationalization process of Chinese innovative vaccines.Therefore,the China-invented vaccines will make an important role in the prevention and control of infectious disease in various countries and become one of the most powerful weapons in fighting the global epidemic event in the future. | Li Shi Xingxiao Yin Ying Li Fei Shen Jingsi Yang | 2017 | Global Health Journal2017，1，3： | 1 |
| 8 | A laser flash photolysis study of amino acids and dipeptides using 4-nitroquinoline 1-oxide as a photosensitizer: The pH dependence显示文摘 | Zhenyu Sheng Qinhua Song Fan Gao Xiaoguo Zhou Jiang Li Jinghua Dai Haihong Sun Quanxin Li Shuqin Yu Xingxiao MA | 2000 | Research on Chemical Intermediates2000，，7： | 1 |
| 9 | Euclidean com-plete a relative extremal hypersurfaces显示文摘 | Xu Ruiwei Li Anming Li Xingxiao | 2009 | Journal ofSichuan University2009，46，： | 1 |
| 10 | Role of P-glycoprotein in the transport of tanshinone I, one active triterpenoid from Salvia miltiorrhiza 显示文摘 | Li Xingxiao Zhou Zhiwei Zhou Shufeng | 2008 | Drug Metab lett2008，2，3： | 1 |
| 11 | Explicit Representations of Mimmal Immersions of 2-Spheres into S^(2m) | Li Xingxiao (Department of Mathematics,Henan Normal University,Xinxiang 453002,China)Li Anmin (Department of Mathematics,Sichuan University,Chengdu 610064,China) | 1997 | Acta Mathematica Sinica,English Series1997，13，2： | 1 |
| 12 | A complete classification of Blaschke parallel submanifolds with vanishing Mbius form显示文摘The Blaschke tensor and the Mbius form are two of the fundamental invariants in the Mobius geometry of submanifolds;an umbilic-free immersed submanifold in real space forms is called Blaschke parallel if its Blaschke tensor is parallel.We prove a theorem which,together with the known classification result for Mobius isotropic submanifolds,successfully establishes a complete classification of the Blaschke parallel submanifolds in S^n with vanishing Mobius form.Before doing so,a broad class of new examples of general codimensions is explicitly constructed. | LI XingXiao SONG HongRu | 2017 | Science China Mathematics2017，60，7： | 1 |
| 13 | Some inequalities for submanifolds in locally conformal almost cosymplectic manifolds显示文摘 | LI Xingxiao HUANG Guangyue XU Jianlou | 2005 | Soochow Journal of Mathematics2005，31，3： | 1 |
| 14 | 芳香氨基酸及其肽光电离、SO_4^(·-)氧化与光敏化过程的比较研究显示文摘运用激光闪光光解瞬态吸收光谱研究了色氨酸 (Trp)、酪氨酸 (Tyr) ,苯丙氨酸 (Phe)和二肽 (Trp Tyr)光电离和被SO· - 4单电子氧化的过程 ,表征了反应过程中生成的自由基 ,并与丙酮光敏化生成的自由基进行了比较。三者不同之处是 ,Trp和Tyr光电离分别生成氮中心的吲哚自由基和酚氧自由基 ;丙酮光敏化除生成上述自由基外 ,在敏化Trp光解体系还观察到Trp激发三重态 ,丙酮三重态与Phe没有作用 ;在SO· - 4单电子氧化体系 ,分别在Trp的吲哚环、Tyr的苯环上加成生成加成产物 ,其中Trp尤为显著 ;Phe的光电离与SO· - 4氧化体系结果一致。在二肽Trp Tyr的光电离和光敏化体系中观察到自由基的转变过程 ,Trp/N· Tyr→Trp Tyr/O·即分子内的电子转移过程 ;而SO· - | 宋钦华 徐业平 俞书勤 Ma Xingxiao 马兴孝 | 2001 | 北京大学学报(自然科学版)2001，37，2： | 0 |
| 15 | Design and experiment of double planet carrier planetary gear flower transplanting mechanism显示文摘At present,there is a lack of miniaturized and highly reliable plug seedling transplanting mechanism in flowerpots planting operation,in order to meet the needs of large displacement and high vertical uprightness for flower transplanting,the paper combined the transmission characteristics of the non-circular gear planetary gear train with the swing flexibility of the cam gear and proposed a double planet carrier planetary gear transplanting mechanism.The linkage of the mechanism performs variable speed rotation relative to the first planet carrier,the linkage serves as the second planet carrier,and the transplanting arm performs variable speed swing relative to the linkage.A mathematical model of a single planetary carrier mechanism was first established using the method of open linkage group solution domain synthesis,then established the kinematic equations of the second planet carrier and the transplanting arm.The two parts are combined to form the mathematical solution model of the proposed mechanism.The initial trajectory was planned according to the trajectory requirements of seedlings planting operation,the non-circular gear pitch curve in the first planet carrier was obtained and the length of the first planet carrier is 120 mm.Then using the key points’angular deviation between the initial trajectory and the improved trajectory to obtain the cam parameters which driving the transplant arm,consequently determined the length of the second planet carrier is 69.25 mm and the length of the transplant arm is 112.4 mm.Finally,the prototype of the mechanism was manufactured,and the test verified the correctness of the design method of the double planet carrier planetary gear flower potting transplanting mechanism.The transplanting success rate of this mechanism reached 94.43%,and the plug seedlings planted in flowerpots had high uprightness.This research can provide a reference for the automatic development of research on flower transplanting machines. | Xiong Zhao Hongwei Liao Xingxiao Ma Li Dai Gaohong Yu Jianneng Chen | 2021 | International Journal of Agricultural and Biological Engineering2021，14，2： | 0 |
| 16 | High-Resolution Imaging of Latent Fingerprints through Near-Infrared Organoboron AIEgens显示文摘A new class of near-infrared(NIR)fluorescent organoboron AIEgens was successfully developed for latent fingerprints(LFPs)imaging.They exhibit real-time and in situ high-resolution imaging performance at 1-3 levels of LFPs by spraying method.In addition,we systematically elucidate the fingerprint imaging mechanism of these AIEgens.Significantly,the excellent level 3 structural imaging capabilities enable the application of them for analyzing incomplete LFPs and identifying individuals in different scenarios. | Lijie Liu Jinjin Wang Xingxiao Wang Haoran Wang Mengzhen Li Tongyuan Wu Guangqin Gao Xin Zheng Guoxing Liu Liangxin Fan Wenbo Shen Guangxin Ru Zheng Zhao Ben Zhong Tang | 2023 | Chinese Journal of Chemistry2023，41，12： | 0 |
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