|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Spatial pattern and temporal trend of prehistoric human sites and its driving factors in Henan Province, Central China显示文摘Yangshao 文化(约 6.95.5 ka BP ) 和 Longshan 文化(约 4.64.0 ka BP ) 在河南省过时的时期起了重要作用。由于 Yangshao 文化地点的空间分发,他们在 Longshan 时期与那些比较有一个面向河的趋势。除了地面因素,在两个时期的地点的分发服从于 paleo 环境的变化。Yangshao 文化在 Holocene 最佳时期发源,并且 Longshan 文化在过时的结束以前在气候的变化开始了。但是后者比前者做的拥有了更多的地点和更宽的范围。文化在富有的降雨和温暖的时期快发展了,并且分别地在 5.4 ka BP 和 4.0 ka BP 为突然的冷却事件凋谢了。因此,河南省过时的文化的可持续性不好是期望。虽然,古老的耕作在人的地点,和需要的分发扮演了不能替代的部分因为耕作空间提示了人的地点向河南省的东方平原从西方的多山的区域膨胀。而且,附近的文化流进河南省并且复杂文化模式。而且,在 Erlitou 时期的地点的特征建议一些社会因素在河南省在过时的年龄的结束扰乱了空间模式。 | LI Zhongxuan ZHU Cheng WU Guoxi ZHENG Chaogui ZHANG Pengju | 2015 | Journal of Geographical Sciences2015，25，9： | 7 |
| 2 | Learning block-structured incoherent dictionaries for sparse representation显示文摘Dictionary learning is still a challenging problem in signal and image processing. In this paper, we propose an efficient block-structured incoherent dictionary learning algorithm for sparse representations of image signals. The constrained minimization of dictionary learning is achieved by iteratively alternating between sparse coding and dictionary update. Without relying on any prior knowledge of the group structure for the input data, we develop a two-stage clustering method that identifies the underlying block structure of the dictionary under certain restricted constraints. The two-stage clustering method mainly consists of affinity propagation and agglomerative hierarchical clustering. To meet the conditions of both the upper bound and the lower bound of the mutual coherence of dictionary atoms, we introduce a regularization term for the objective function to adjust the block coherence of the overcomplete dictionary. The experiments on synthetic data and real images demonstrate that the proposed dictionary learning algorithm has lower representation error, higher visual quality and better reconstructed results than most of the state-of-the-art methods. | ZHANG YongQin XIAO JinSheng LI ShuHong SHI CaiYun XIE GuoXi | 2015 | Science China(Information Sciences)2015，58，10： | 6 |
| 3 | Natural orifice transluminal endoscopic surgery in urology: The Chinese experience显示文摘Objective:To describe the Chinese experience of natural orifice transluminal endoscopic surgery(NOTES)in urology.Methods:From December 2008 to May 2017,35 animal experiments and 305 clinical surgeries of NOTES or natural orifices specimen extractions(NOSE)were performed in China.The animal experiments included five kidney biopsies,24 nephrectomies and six partial nephrectomies.The clinical surgeries included 12 transvaginal NOSE(TV-NOSE),266 hybrid transvaginal NOTES(TV-NOTES)and 27 pure TV-NOTES.The TV-NOSE procedure was performed in five transumbilical laparoendoscopic single-site(U-LESS)nephrectomies,four suprapubic-assisted laparoendoscopic single-site surgery(SA-LESS)nephroureterectomies,and three laparoscopic radical cystectomies.The hybrid TV-NOTES procedure included 210 nephrectomies,31 adrenalectomies,eight nephroureterectomies,13 partial nephrectomies,and four heminephrectomies.The pure TV-NOTES procedure included five renal cyst decortications and 22 nephrectomies.Results:A total of 29 animal experiments were successfully performed.One partial nephrectomy was converted to standard laparoscopic surgery.Two kidney biopsies and two nephrectomies were unsuccessful.A total of 297 clinical surgeries were successfully performed.Six patients who underwent hybrid TV-NOTES were converted to open surgery.Two patients who underwent pure TV-NOTES were converted to SA-LESS.There were 22 major complications,16 occurred intraoperatively and six postoperatively.The mean visual analog score(VAS)of 48 h after the operation was 2.5 points in TV-NOSE,2.3 points in hybrid TV-NOTES and 1.7 points in pure TV-NOTES.The mean follow-up of 50.6(3.0-87.0)months showed that all patients were in good condition.The umbilicus scars were nearly invisible in TV-NOSE and hybrid TV-NOTES.The vaginal incision healed well.Conclusions:TV-NOSE and TV-NOTES are feasible,safe,and effective with little injury,low pain,fast recovery,and good cosmetic outcomes in properly selected patients.They are worth consideration for urological clinical practice. | Xiaofeng Zou Guoxi Zhang Tianpeng Xie Yuanhu Yuan Rihai Xiao Gengqing Wu Xiaoning Wang Hui Xu Folin Liu Yuting Wu Yunfeng Liao Quanliang Liu Yinghao Sun Bo Yang Linhui Wang Chuanliang Xu Xiaofeng Gao | 2020 | Asian Journal of Urology2020，7，1： | 5 |
| 4 | Influences of multiphoton absorption and freecarrier effects on frequency-comb generation in normal dispersion silicon microresonators显示文摘We investigate frequency-comb generation in normal dispersion silicon microresonators from the near-infrared to mid-infrared wavelength range in the presence of multiphoton absorption and free-carrier effects. It is found that parametric oscillation is inhibited in the telecom wavelength range resulting from strong two-photon absorption.On the contrary, beyond the wavelength of 2200 nm, where three-and four-photon absorption are less detrimental,a comb can be generated with moderate pump power, or free-carriers are swept out by a positive-intrinsic-negative structure. In the temporal domain, the generated combs correspond to flat-top pulses, and the pulse duration can be easily controlled by varying the laser detuning. The reported comb generation process shows a high conversion efficiency compared with anomalous dispersion regime, which can guide and promote comb formation in materials with normal dispersion. As the comb spectra cover the mid-infrared wavelength range, they can find applications in comb-based radiofrequency photonic filters and mid-infrared spectroscopy. | MULONG LIU LEIRAN WANG QIBING SUN SIQI LI ZHIQIANG GE ZHIZHOU LU WEIQIANG WANG GUOXI WANG WENFU ZHANG XIAOHONG HU WEI ZHAO | 2018 | Photonics Research2018，6，4： | 4 |
| 5 | An M/M/1 Queueing-Inventory System with Geometric Batch Demands and Lost Sales显示文摘 | YUE Dequan ZHAO Guoxi QIN Yaling | 2018 | Journal of Systems Science & Complexity2018，31，4： | 3 |
| 6 | Power Flow Response Based Dynamic Topology Optimization of Bi-material Plate Structures显示文摘Work on dynamic topology optimization of engineering structures for vibration suppression has mainly addressed the maximization of eigenfrequencies and gaps between consecutive eigenfrequencies of free vibration, minimization of the dynamic compliance subject to forced vibration, and minimization of the structural frequency response. A dynamic topology optimization method of bi-material plate structures is presented based on power flow analysis. Topology optimization problems formulated directly with the design objective of minimizing the power flow response are dealt with. In comparison to the displacement or velocity response, the power flow response takes not only the amplitude of force and velocity into account, but also the phase relationship of the two vector quantities. The complex expression of power flow response is derived based on time-harmonic external mechanical loading and Rayleigh damping. The mathematical formulation of topology optimization is established based on power flow response and bi-material solid isotropic material with penalization(SIMP) model. Computational optimization procedure is developed by using adjoint design sensitivity analysis and the method of moving asymptotes(MMA). Several numerical examples are presented for bi-material plate structures with different loading frequencies, which verify the feasibility and effectiveness of this method. Additionally, optimum results between topological design of minimum power flow response and minimum dynamic compliance are compared, showing that the present method has strong adaptability for structural dynamic topology optimization problems. The proposed research provides a more accurate and effective approach for dynamic topology optimization of vibrating structures. | XUE Xiaoguang LI Guoxi XIONG Yeping GONG Jingzhong | 2013 | Chinese Journal of Mechanical Engineering2013，26，3： | 3 |
| 7 | Study on the ore-forming and ore-controlling structure of the Mujicun Cu (Mo) ore deposit, Hebei Province, China显示文摘The Mujicun Cu (Mo) ore deposit at Laiyuan, Hebei Province, is a currently proven large-sized Cu (Mo) polymetallic ore deposit and it is located in the second-ordered fault depression basin of the ditachment belt on the hanging-wall on the western side at the juncture of the Laiyuan dumbell-shaped complex in the northern part of the Fuping mantle-branch structure. Metallogenesis is controlled by diorite porphyrite in intrusive relation with the fault depression basin and other relevant fault structure systems and intenstive wall-rock alteration zones. This study, in conjunction with the most recent exploration data, analyzed the geological background of metallogenesis of this deposit, summaried the geological characteristics of typical ore deposits, determined the alteration zonation of the deposit, investigated regional metallogenesis and the genesis of typical ore deposits, discussed the regional ore-forming and ore-controlling structures, and generalized the regional ore-controlling model and metallogenic model of the deposit. It is considered that the Mujicun porphry Cu (Mo) deposit, the Tieling, Futuyu, Xiaoligou and other skarn-type Fe-Cu deposits and the He'ergou hydrothermal-type Pb-Zn-Ag deposit jointly constitute a three-in-one polymetallic orefield, with the characteristics of typical metallogenic series. | NIU Shuyin MA Guoxi CHEN Zhikuan WANG Baode CHEN Lijing SUN Aiqun MA Xiaofeng ZHANG Jianzhen MA Baojun CHEN Chao LU Hongpeng | 2012 | Chinese Journal Of Geochemistry2012，31，1： | 2 |
| 8 | Taxonomy on crane flies from Mountain Huang, China, with descriptions of two new species(Diptera: Tipulidae)显示文摘The paper reports eight species from Mountain Huang, Anhui, China, including two new species, Nephrotoma huangshanensis sp. nov. and Tipula(Pterelachisus) pseudobiaciculifera sp. nov. The males of four species, Pselliophora xanthopimplinaEnderlein, 1921, Tanyptera hubeiensis Yang & Yang, 1988, Tipula coxitalis Alexander, 1935 and Tipulodina xyris(Alexander, 1949) are redescribed and illustrated, with new morphological characters. All specimens are deposited in the animal specimen room, School of Life Sciences, Anqing Normal University, Anhui Province, China. | Qiulei Men Guoxi Xue Fang Wang | 2016 | Zoological Systematics2016，41，1： | 2 |
| 9 | Manipulation of light in MIM plasmonic waveguide systems显示文摘Plasmonic waveguides that allow deeply subwavelength confinement of light provide an effective platform for the design of ultracompact photonic devices.As an important plasmonic waveguide,metal-insulator-metal(MIM)structure supports the propagation of light in the nanoscale regime at the visible and near-infrared ranges.Here,we focus on our work in MIM plasmonic waveguide devices for manipulating light,and review some of the recent development of this topic.We introduce MIM plasmonic wavelength filtering and demultiplexing devices,and present the electromagnetic induced transparency(EIT)-like and Fano resonance effects in MIM waveguide systems.The slow-light and rainbow trapping effects are demonstrated theoretically.These results pave a way toward dynamic control of the special and useful optical responses,which actualize some new plasmonic waveguide-integrated devices such as nanoscale filters,demultiplexers,sensors,slow light waveguides,and buffers. | LU Hua WANG GuoXi LIU XueMing | 2013 | Chinese Science Bulletin2013，58，30： | 2 |
| 10 | Nonlinear instability for nonhomogeneous incompressible viscous fluids显示文摘We investigate the nonlinear instability of a smooth steady density profile solution to the threedimensional nonhomogeneous incompressible Navier-Stokes equations in the presence of a uniform gravitational field,including a Rayleigh-Taylor steady-state solution with heavier density with increasing height(referred to the Rayleigh-Taylor instability).We first analyze the equations obtained from linearization around the steady density profile solution.Then we construct solutions to the linearized problem that grow in time in the Sobolev space H k,thus leading to a global instability result for the linearized problem.With the help of the constructed unstable solutions and an existence theorem of classical solutions to the original nonlinear equations,we can then demonstrate the instability of the nonlinear problem in some sense.Our analysis shows that the third component of the velocity already induces the instability,which is different from the previous known results. | JIANG Fei JIANG Song NI GuoXi | 2013 | Science China Mathematics2013，56，4： | 2 |
| 11 | A differential magnetoelectric laminated composite for vibration noise suppression显示文摘A magnetoelectric(ME) laminated composite made of one pair of piezoelectric Pb(Zr,Ti)O3(PZT) fiber layers with multiple push–pull polarization units laminated between high-permeability metglas ribbon layers with a differential configuration was proposed for vibration noise suppression. Unlike conventional metglas/PZT fiber/metglas three-layer ME laminated structures, the differential configuration has the capability to reject vibration-induced noise from the magnetic signal. The experiment results showed that the differential ME laminated composite was with up to 30 times enhancement in signal-to-noise ratio. | Guoxi Liu Shuxiang Dong | 2014 | Chinese Science Bulletin2014，59，36： | 2 |
| 12 | The influence ofB-doping on the catalytic performance of Cu/HMS catalyst for the hydrogenation of dimethyloxalate 显示文摘 | YINAY QUJW GUOXY etal | 2011 | Applied Catalysis A: General2011，400，12： | 1 |
| 13 | Suprapubic‐assisted laparoendoscopic single‐site surgery ( LESS ) in urology: our experience显示文摘 | Xiaofeng Zou Guoxi Zhang Yijun Xue Yuanhu Yuan Rihai Xiao Gengqing Wu Xiaoning Wang Yuting Wu Dazhi Long Jun Yang Hui Xu Folin Liu Xu Zhang | 2013 | BJU Int2013，，2： | 1 |
| 14 | Spreading of mixed solution of fluorocarbon and hydrocarbon surfactants 显示文摘 | Zhao guoxi Zhu buyao | 1983 | Colloid Polym Sci1983，261，： | 1 |
| 15 | Dispersionless slow light in MIM waveguide based on a plasmonic analogue of electromagnetically induced transparency显示文摘 | Wang Guoxi Lu Hua Liu Xueming | 2012 | Opt Express2012，20，20： | 1 |
| 16 | Synthesis of wheat straw-g-poly (acrylic acid) superabsorbent composites and release of urea from it显示文摘 | Liang Rui Yuan Hongbo Xi Guoxi | 2009 | Carbohydrate Polymers2009，77，2： | 1 |
| 17 | Unidirectional excitation of surface plasmon polaritons in T-shaped waveguide with nanodisk resonator 显示文摘 | Guoxi Wang Hua Lu | 2012 | Opt Commun2012，285，： | 1 |
| 18 | Q- switched mode-locking of second-Stokes pulses in a diode- pumped YVO4/Nd: YVO4/YV04 self-Raman laser 显示文摘 | Du Chenlin Huang Guoxi Yu Yongqin | 2014 | Laser Physics2014，24，12： | 1 |
| 19 | 显示文摘 | Cao Guoxi Lin Fengying Hu Hefang | 2003 | Non- Cryst Solids2003，326，327： | 1 |
| 20 | Diode- pumped simultaneously Q-switched and mode-locked YVOJNd :YVOJYVO4 crystal self-Raman first-Stokes laser 显示文摘 | Huang Guoxi Yu Yongqin Xie Xiaohua | 2013 | Optics Express2013，21，19： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员