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39篇 您的检索式:作者名="Yuan Zhipeng"
    题名 作者 年代 出处 被引量
1Analysis of risk factors affecting the prognosis of pancreatic neuroendocrine tumors显示文摘Tao Ming Yuan Chunhui Xiu Dianrong Shi Xueying Tao Liyuan Ma Zhaolai Jiang Bin Zhang Zhipeng Zhang Lingfu Wang Hangyan 2014Chinese Medical Journal2014,,16:13
2Mode-locked 2.8-μm fluoride fiber laser:from soliton to breathing pulse显示文摘The mode-locked fluoride fiber laser(MLFFL)is an exciting platform for directly generating ultrashort pulses in the mid-infrared(mid-IR).However,owing to difficulty in managing the dispersion in fluoride fiber lasers,MLFFLs are restricted to the soliton regime,hindering pulse-energy scaling.We overcame the problem of dispersion management by utilizing the huge normal dispersion generated near the absorption edge of an infrared-bandgap semiconductor and promoted MLFFL from soliton to breathing-pulse mode-locking.In the breathing-pulse regime,the accumulated nonlinear phase shift can be significantly reduced in the cavity,and the pulse-energy-limitation effect is mitigated.The breathing-pulse MLFFL directly produced a pulse energy of 9.3 nJ and pulse duration of 215 fs,with a record peak power of 43.3 kW at 2.8μm.Our work paves the way for the pulse-energy and peak-power scaling of mid-IR fluoride fiber lasers,enabling a wide range of applications.Zhipeng Qin Guoqiang Xie Hongan Gu Ting Hai Peng Yuan Jingui Ma Liejia Qian 2019Advanced Photonics2019,1,6:9
32.8 μm all-fiber Q-switched and mode-locked lasers with black phosphorus显示文摘In past years, rare-earth-doped fluoride fiber lasers(FFLs) have developed rapidly in the mid-infrared(mid-IR)region. However, due to the lack of fiber optic devices and challenge of fluoride fiber splicing, most mid-IR FFLs have been demonstrated with free-space optic elements, limiting the advantages of all-fiber lasers for flexible delivery, stability, and compactness. Here, we report, to the best of our knowledge, the first pulsed all-fiber FFL in the mid-IR region. By taking advantage of the integration of black phosphorus flake, stable Q-switched and mode-locked pulses were obtained at 2.8 μm wavelength. We believe that this all-fiber design will promote the application of pulsed FFL in the mid-IR region.ZHIPENG QIN GUOQIANG XIE JINGUI MA PENG YUAN LIEJIA QIAN 2018Photonics Research2018,,11:7
4Male panda (Ailuropoda melanoleuca) urine contains kinship information显示文摘Chemical communication plays an important role in kin selection and mate choice in mammals. The covariance of odor-genes of rodents has been documented and kinship odor has been proposed and termed, yet little is known of the relationship between genetic relatedness and chemical composition of kinship odors. Giant pandas (Ailuropoda melanoleuca) rely substantially on chemical communication to mediate their social interactions. To examine the relationship between genetic relatedness and compounds in the urine/anogenital gland secretions, we compared the similarities between genetic relatedness and the chemical profiles of anogenital gland secretions and urine via lineage construction and GC-MS (gas chromatography and mass spectrometry). We found that information about kinship odors was present only in the urine of male adults in the mating season but absent in the non-mating season. Adult females and all sub-adults did not have such kinship odors in either mating or non-mating season. Therefore, kinship odor in the panda was contingent on age, sex, and season. This is the first report about the condition-dependent expression of kinship odor, which may have a sig- nificant implication in the practice of panda conservation in relation to chemical communication and sexual selection.LIU DingZhen WEI RongPing ZHANG GuiQuan YUAN Hong WANG ZhiPeng SUN Lixing ZHANG Jianxu ZHANG HeMin 2008Chinese Science Bulletin2008,53,18:6
5Molecular diversity of arbuscular mycorrhizal fungi at a large-scale antimony mining area in southern China显示文摘Arbuscular mycorrhizal fungi(AMF) have great potential for assisting heavy metal hyperaccumulators in the remediation of contaminated soils. However, little information is available about the community composition of AMF under natural conditions in soils contaminated by antimony(Sb). The objective of this study was to investigate the characteristics of AMF molecular diversity, and to explore the effects of Sb content and soil properties on the AMF community structure in an Sb mining area. Four Sb mine spoils and one adjacent reference area were selected from around the Xikuangshan mine in southern China. The association of AMF molecular diversity and community composition with the rhizosphere soils of the dominant plant species was studied by Polymerase Chain Reaction-Denaturing Gradient Gel Electrophoresis(PCR-DGGE). Results from all five studied sites showed that the diversity of AMF decreased with increasing Sb concentration. Principal component analysis(PCA) indicated that the AMF community structure was markedly different among these groups. Further redundancy analysis(RDA) showed that Sb contamination was the dominating factor influencing the AMF community structure in the Sb mine area. However, the multivariate analysis showed that, apart from the soil Sb content, extractable nitrogen content and organic matter content also attributed to AMF sequence distribution type. Some AMF sequences were only found in the highly contaminated area and these might be ideal candidates for improving phytoremediation efficiency in Sb mining regions. Gene sequencing analysis revealed that most species were affiliated with Glomus, suggesting that Glomus was the dominant AMF genus in the studied Sb mining area.Yuan Wei Zhipeng Chen Fengchang Wu Hong Hou Jining Li Yuxian Shangguan Juan Zhang Fasheng Li Qingru Zeng 2015Journal of Environmental Sciences2015,27,3:6
6Meteorite classification for building the Chinese Antarctic Meteorite Depository Introduction of the classification of 500 Grove Mountains meteorites显示文摘Meteorites provide an important window into the origins and evolution of the solar system. Since the first four meteorites were recovered in Grove Mountains, Antarctica, in 1998, a further total of 12665 meteorites have been collected over seven polar seasons in the Grove Mountains. All of these meteorites are owned and managed by the Chinese Antarctic Meteorite Depository(CAMD) at the Polar Research Institute of China(PRIC). In recent years, another 500 Antarctic meteorites have been classified and characterized based on mineralogy and petrology. In this work we examine four samples that have been identified as terrestrial, and a further 496 samples that have been confirmed as meteorites. These meteorites are further divided into different types:488 ordinary chondrites, one eucrite, one ureilite, one CM2 carbonaceous chondrite, one EH4 enstatite chondrite, one mesosiderite and three iron meteorites. The classification of meteorites not only provides an abundance of fundamental scientific data, but is also significant for introducing meteorites and related scientific knowledge to the public, particularly via the website of Chinese Resource-sharing Platform of Polar Samples for scientific research and education.XIA Zhipeng ZHANG Jie MIAO Bingkui OU Ronglin XIE Lanfang YANG Rui JING Yuan 2016Advances in Polar Science2016,27,1:4
7Effect of Zr addition on precipitates in K4169 superalloy显示文摘In order to investigate the effect of Zr addition on the precipitations of K4169 superalloy,a manual electric arc furnace was used to prepare the superalloy with different Zr addition from 0.03wt.% to 0.07wt%.After standard heat treatment and long-time aging,the microstructures of the alloys were observed using XRD,SEM and TEM.The results show that Zr not only inhibits the precipitation of Laves phase at the grain boundary,but also significantly promotes the precipitation of earlobe-like γ' and γ″ phases.After long time aging at 680℃ for 500 h,the γ″ phase grows up obviously and forms a γ'/γ'' clad microstructure when the Zr addition is 0.03 wt.%.A large number of fine orbed γ' particles precipitate in the grains and some γ″ phase transforms to disk-like δ phase when the Zr addition increases to 0.05wt.%.The nano-polycrystalline γ' phase precipitates in the grains and there is a little δ phase when the Zr addition is 0.07wt.%.As the Zr addition increases,the amount of Laves phase at the grain boundary decreases at first,and then increases and forms flaky morphology.Li Yamin Liu Hongjun Liu Jie Wang Zhipeng Hao Yuan 2012China Foundry2012,9,1:3
8Surface Charging Phenomena on HVDC Spacers for Compressed SF_(6) Insulation and Charge Tailoring Strategies显示文摘Surface flashover of spacers is a key factor limiting the application of HVDC GIS/GIL,while the charge accumula-tion on the surface of the spacer could have a potential adverse effect on the surface flashover voltage.This paper discusses the laws regarding distribution patterns of surface charges and the related mechanisms.The field-dependent property is discussed in detail to comprehensively illustrate the charge transport mecha-nism and explain the research differences regarding different surface charge patterns obtained by previous researchers.In addition,the main surface charge control methods for epoxy resin are summarized and discussed.The potential research directions of charge control methods and key points in manufacturing of spacers used in HVDC GIS/GIL are also explored.Chuanyang Li Yuan Xu Chuanjie Lin Geng Chen Youping Tu Yao Zhou Zhipeng Lei Tao Han Simone Vincenzo Suraci Jian Wang Weidong Liu M.Tariq Nazir Shun He Andrea Cavallini Giovanni Mazzanti Davide Fabiani Jinliang He 2020CSEE Journal of Power and Energy Systems2020,6,1:3
9Significant enhancement in the electrical conductance properties of ethylene propylene diene monomer using the nano‐SiO_(2) particles显示文摘To study the effect of nano‐silica particles on the conductivity characteristics of ethylene propylene diene monomer(EPDM)insulation,EPDM nanocomposites with different mass fractions of nano silica were prepared via the melt‐blending method.Scanning electron microscopy was used to analyze the dispersion of nanoparticles in EPDM.Based on the Fourier‐transform infrared spectrum,the bonding properties between the nanoparticles and EPDM were analyzed.The steady‐state current at 30-100°C and 1-20 kV/mm was measured.Moreover,the conductivity characteristic was analyzed.The experimental results show that as the content of nano‐silica increases,the electrical conductivity of EPDM nanocomposite as well as the threshold field strength gradually decreases.Samples with a small number of nanoparticles will increase the activation energy of the carrier conductivity,and the interface region effect introduced by nanoparticles will reduce the carrier mobility and concentration,resulting in a lower conductivity.Comparing the calculated value of the dielectric constant with the measured value can conclude that the high‐field conductance process is a combination of the electrode effect and the body effect,which in this case,Schottky effect dominates.Chunyu Xu Ruixue Zhao Chuanyang Li Yuanyuan Li Guodong Zhang Tohid Shahsavarian Mengqiang Yuan Zhipeng Lei 2021High Voltage2021,6,3:2
10Strontium isotope analysis of archaeological fauna at the Erlitou site显示文摘The Erlitou site is located at Yanshi City,Henan Province.This site is a large settlement site of Erlitou culture,and it is dated to 3800-3500 a BP.Five kinds of domestic animals,i.e.,dogs,pigs,sheep,goats,and cattle were found from the site.In this paper,two problems have emerged in studies involving the estimation of local isotope levels and the distinction of migrants from locals.Tooth enamel samples from 17 domestic animals individuals were analyzed for strontium isotope ratio(87Sr/86Sr),by the thermal ionization mass spectrometry,including 10 pigs,5 sheep and 2 cattle.The results show that the mean 87Sr/86Sr ratios of 10 pigs enamel samples were 0.712078,Based on the local strontium isotopes ratio range determined by the mean 87Sr/86Sr ratios ±2 of 10 pig enamel samples(0.712256-0.711900),we found that five sheep and one cattle from the Erlitou site fell well outside the local strontium isotopes ratio range and were considered to be non-local.ZHAO ChunYan YANG Jie YUAN Jing LI ZhiPeng XU Hong ZHAO HaiTao CHEN GuoLiang 2012Science China Earth Sciences2012,55,8:2
11Non-covalent glycosylated gold nanoparticles/peptides nanovaccine as potential cancer vaccines显示文摘Herein,we firstly developed a non-covalent glycosylated gold nanoparticles/peptides nanovaccine which is assembled byβ-cyclodextrin(β-CD)based host-guest recognitions.This nanovaccine can generate significant titers of antibodies and improve the therapeutic effect against melanoma,suggesting the immunogenicity of peptide antigens can be improved by loading with this carrier.The novel vaccine carrier provides a platform for the transport of various antigens especially T cell-independent antigens.Liming Zeng Zonglang Liao Wenwei Li Qijuan Yuan Peng Wu Zhipeng Gu Zhongqiu Liu Guochao Liao 2020Chinese Chemical Letters2020,31,5:2
12A Unified Strategy for Formal Derivation and Proof of Binary Tree Nonrecursive Algorithms显示文摘In the formal derivation and proof of binary tree algorithms,Dijkstra’s weakest predicate method is commonly used.However,the method has some drawbacks,including a time-consuming derivation process,complicated loop invariants,and the inability to generate executable programs from the specification.This paper proposes a unified strategy for the formal derivation and proof of binary tree non-recursive algorithms to address these issues.First,binary tree problem solving sequences are decomposed into two types of recursive relations based on queue and stack,and two corresponding loop invariant templates are constructed.Second,high-reliability Apla(abstract programming language)programs are derived using recursive relations and loop invariants.Finally,Apla programs are converted automatically into C++executable programs.Two types of problems with binary tree queue and stack recursive relations are used as examples,and their formal derivation and proof are performed to validate the proposed strategy’s effectiveness.This strategy improves the efficiency and correctness of binary tree algorithm derivation.ZUO Zhengkang HUANG Zhipeng FANG Yue HUANG Qing WANG Yuan WANG Changjing 2022Wuhan University Journal of Natural Sciences2022,27,5:2
13A natural variation of an SVP MADS-box transcription factor in Triticum petropavlovskyi leads to its ectopic expression and contributes to elongated glume显示文摘Dear Editor,Triticum petropavlovskyi,commonly known as Xinjiang rice wheat,is a unique hexaploidy wheat grown in the Xinjiang area.T.petropavlovskyi is marked by its elongated glume(Eg)trait,which is controlled by gene P1pet located on chromosome 7A(Wang et al.,2002;Watanabe and Imamura,2002).The origin of T.petropavlovskyi has been disputed.It is generally accepted that P1pet was introduced from tetraploid polish wheat(T.polonicum)via a hybridization with hexaploid common wheat(T.aestivum)(Akond et al.,2008;Chen et al.,2016).Jin Xiao Yan Chen Yifan Lu Zhipeng Liu Dongmei Si Tao Xu Li Sun Zongkuan Wang Chunxia Yuan Haojie Sun Xu Zhang Mingxing Wen Luyang Wei Wenli Zhang Haiyan Wang Xiue Wang 2021Molecular Plant2021,14,9:2
14Emergency medical rescue efforts after a major earthquake: lessons from the 2008 Wenchuan earthquake显示文摘Lulu Zhang Xu Liu Youping Li Yuan Liu Zhipeng Liu Juncong Lin Ji Shen Xuefeng Tang Yi Zhang Wannian Liang 2012The Lancet2012,,9818:1
15Promoter polymorphisms in DNA repair gene ERCC5 and susceptibility to gastric cancer in Chinese显示文摘Zhipeng Duan Caiyun He Yantao Gong Ping Li Qian Xu Li-ping Sun Zhenning Wang Chengzhong Xing Yuan Yuan 2012Gene2012,,2:1
16First-principle calculation on mechanical and thermal properties of B2-NiSc with point defects显示文摘Using the first-principles plane-wave pseudo-potential method based on density functional theory,the effect of vacancy and anti-position defect on the mechanical and thermal properties of B2-NiSc intermetallics were discussed in detail.Several parameters,such as the shear modulus,bulk modulus,modulus of elasticity,C_(11)-C_(12),the Debye temperature and Poisson's ratio,have been calculated to evaluate the effect of vacancy and anti-position defect on the hardness,ductility and thermal properties of B2-NiSc intermetallics.The results show that V_(Ni),Sc_(Ni),V_(Sc)and Ni_(Sc)the four point defects all make the crystal hardness decrease and improve plasticity of B2-NiSc intermetallics.The entropy,enthalpy and free energy of V_(Ni),Sc_(Ni),V_(Sc)and Ni_(Sc)are monotonously changed as temperature changes.From the perspective of free energy,Ni_(Sc)is the most stable,while Sc_(Ni)is the most unstable.Debye temperature of NiSc intermetallics with four different point defects shows V_(Ni),Sc_(Ni),V_(Sc)and Ni_(Sc)the four point defects all reduce the stability of B2-NiSc intermetallics.Zhipeng Yuan Hongbao Cui Xuefeng Guo 2017Journal of Semiconductors2017,38,1:1
17Computer Aided Design Technology for Convex Faceted Gem Cuts Based on the Half-Edge Data Structure显示文摘Aiming to increase the efficiency of gem design and manufacturing, a new method in computer-aided-design (CAD) of convex faceted gem cuts (CFGC) based on Half-edge data structure (HDS), including the algorithms for the implementation is presented in this work. By using object-oriented methods, geometrical elements of CFGC are classified and responding geometrical feature classes are established. Each class is implemented and embedded based on the gem process. Matrix arithmetic and analytical geometry are used to derive the affine transformation and the cutting algorithm. Based on the demand for a diversity of gem cuts, CAD functions both for free-style faceted cuts and parametric designs of typical cuts and visualization and human-computer interactions of the CAD system including two-dimensional and three-dimensional interactions have been realized which enhances the flexibility and universality of the CAD system. Furthermore, data in this CAD system can also be used directly by the gem CAM module, which will promote the gem CAD/CAM integration.Linhong Xu Xiangnan Li Jianhua Rao Yuan Han Zhipeng Li Jichun Li 2019Journal of Beijing Institute of Technology2019,28,3:1
18A complete assembly of the rice Nipponbare reference genome显示文摘Dear Editor,In 2005,the current commonly used rice reference genome(Oryza sativa ssp.japonica cv.Nipponbare)was initially released by the International Rice Genome Sequencing Project(International Rice Genome Sequencing Project,2005).Thereafter,the reference genome was further updated in 2013 with improved genome assembly(IRGSP-1.0)and gene annotations(MSU7,RAP-DB)(Kawahara et al.,2013;Sakai et al.,2013).In the past 10 years,this reference has been serving as one of the most important genetic resources for subsequent rice functional genomics efforts.As several rice genomes had been assembled into gapless chromosomes with only 2–5 telomeres absent(Li et al.,2021;Song et al.,2021;Zhang et al.,2022),the IRGSP1.0 and its annotations still performed as the most widely used reference.However,limitations of sequencing technology and intricate genomic organization led to an under-representation of complex regions in this reference,leaving a total of 72 major gaps(including 19 telomeres),167 minor gaps,and 779 unknown bases(Kawahara et al.,2013),with an estimated length of3%of the genome unsolved.Lianguang Shang Wenchuang He Tianyi Wang Yingxue Yang Qiang Xu Xianjia Zhao Longbo Yang Hong Zhang Xiaoxia Li Yang Lv Wu Chen Shuo Cao Xianmeng Wang Bin Zhang Xiangpei Liu Xiaoman Yu Huiying He Hua Wei Yue Leng Chuanlin Shi Mingliang Guo Zhipeng Zhang Bintao Zhang Qiaoling Yuan Hongge Qian Xinglan Cao Yan Cui Qianqian Zhang Xiaofan Dai Congcong Liu Longbiao Guo Yongfeng Zhou Xiaoming Zheng Jue Ruan Zhukuan Cheng Weihua Pan Qian Qian 2023Molecular Plant2023,16,8:1
19C50 for Propofol-Remifentanil Target-Controlled Infusion and Bispectral Index at Loss of Consciousness and Response to Painful Stimulus in Chinese Patients: A Multicenter Clinical Trial显示文摘Zhipeng Xu Fang Liu Yun Yue Tiehu Ye Bingxi Zhang Mingzhang Zuo Mingjun Xu Rongrong Hao Yuan Xu Ning Yang Xiangming Che 2009Anesthesia & Analgesia2009,,2:1
20Viologen-Decorated TEMPO for Neutral Aqueous Organic Redox Flow Batteries显示文摘A novel electroactive organic molecule,viz.,1-(1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl)-1′-(3-(trimethylammonio)propyl)-4,4′-bipyridinium trichloride((TPABPy)Cl3),is synthesized by decorating 2,2,6,6-tetramethylpiperidin-1-oxyl(TEMPO)with viologen,which is used as the positive electrolyte in neutral aqueous redox flow battery(ARFB).Extensive characterizations are performed to investigate the composition/structure and the electrochemical behavior,revealing the favorable effect of introducing the cationic viologen group on the electroactive TEMPO.Salient findings are as follows.First,the redox potential is elevated from+0.745V for TEMPO to+0.967V for decorated TEMPO,favoring its use as the positive electrolyte.Such an elevation originates from the electron-withdrawing effect of the viologen unit,as evidenced by the nuclear magnetic resonance and single crystal structure analysis.Second,linear sweep voltammetry reveals that the diffusion coefficient is 2:97×10^(−6) cm^(2) s^(−1),and the rate constant of the one-electron transfer process is 7:50×10^(−2) cm s^(−1).The two values are sufficiently high as to ensure low concentration and kinetics polarization losses during the battery operation.Third,the permeability through anion-exchange membrane is as low as 1:80×10^(−11) cm^(2) s^(−1).It is understandable as the positive-charged viologen unit prevents the molecule from permeating through the anion exchange membrane by the Donnan effect.Fourth,the ionic nature features a decent conductivity and thus eliminates the use of additional supporting electrolyte.Finally,a flow battery is operated with 1.50M(TPABPy)Cl3 as the positive electrolyte,which affords a high energy density of 19.0WhL-1 and a stable cycling performance with capacity retention of 99.98%per cycle.Shuzhi Hu Liwen Wang Xianzhi Yuan Zhipeng Xiang Mingbao Huang Peng Luo Yufeng Liu Zhiyong Fu Zhenxing Liang 2021Energy Material Advances2021,,1:1
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