|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | An experimental study on variation of thermal fields during the deformation of a compressive en echelon fault set显示文摘温度变化在变丑期间一在在一件岩石样品的军队飞机差错集合压缩被表面测量系统 th 测量多点的铂电阻温度计和一个红外线的 theirnal 图象系统。二个系统获得的大小与对方一致,显示在 then-nd 领域的时间空间的变化和应力和紧张的变化之间的一种关系。在岩石样品的改变的 sfructurd 位置,温度升起是不同的,暗示在这些位置的不同压力分布。在实验,样品的 defoirmation 过程包括了三个阶段:有弹性的变丑,粘住滑倒,和 nipture。Grrespondingly,温度的变化过程也有三个阶段,其各个有它的 oq 温度升起侧面。并且热放射领域显示出一个类似的过程。这些现象意味着在变丑的 sJl 阶段升起的温度的主导的机制是不同的。试验性的结果 prode 由使用卫星的数据的当前的差错活动的学习的一个物理基础红外线的图象。 | LIU Peixun MA Jin LIU Liqiang MA Shengli CHEN Guoqiang | 2007 | Progress in Natural Science:Materials International2007，17，3： | 14 |
| 2 | Theoretical and experimental study on relationship between stress-strain and temperature variation显示文摘Principle on temperature response to the stress-strain variation is fundamental to the relationship between thermal radiation variation and stress-strain field. Current research indicates that temperature has a sensitive response to rock deformation under the condition of normal temperature background. However, the basic physical relationship between deformation and temperature variation is not clear and need to be investigated further. In this paper, principle on temperature response to stress-strain variation is studied in detail, based on thermodynamics, elastic strain theory, and experiments on both ideal material and rock. In the stage of elastic deformation, results indicate that: 1) temperature increment is positively correlated with volume strain variation. Temperature rises with hydrostatic pressure increase. In other words, temperature rises when the specimen is under the compressive state whereas temperature drops under the tensile state. 2) Pure shear deformation does not contribute to tempera- ture variation. Namely, shape change of specimen does not produce temperature variation. However, there exist the relative tensile area and the compressive one in the specimen under the state of pure shear. Temperature drops within the relative tensile area while temperature rises within the compressive areas during the process of loading. | CHEN ShunYun LIU LiQiang LIU PeiXun MA Jin CHEN GuoQiang | 2009 | Science China Earth Sciences2009，52，11： | 13 |
| 3 | Long-term bone and lung consequences associated with hospital-acquired severe acute respiratory syndrome:a 15-year follow-up from a prospective cohort study显示文摘The most severe sequelae after rehabilitation from SARS are femoral head necrosis and pulmonary fibrosis. We performed a 15-year follow-up on the lung and bone conditions of SARS patients. We evaluated the recovery from lung damage and femoral head necrosis in an observational cohort study of SARS patients using pulmonary CT scans, hip joint MRI examinations, pulmonary function tests and hip joint function questionnaires. Eighty medical staff contracted SARS in 2003. Two patients died of SARS, and78 were enrolled in this study from August 2003 to March 2018. Seventy-one patients completed the 15-year follow-up. The percentage of pulmonary lesions on CT scans diminished from 2003(9.40 ± 7.83)% to 2004(3.20 ± 4.78)%(P < 0.001) and remained stable thereafter until 2018(4.60 ± 6.37)%. Between 2006 and 2018, the proportion of patients with interstitial changes who had improved pulmonary function was lower than that of patients without lesions, as demonstrated by the one-second ratio(FEV1/FVC%, t = 2.21, P = 0.04) and mid-flow of maximum expiration(FEF25%–75%, t = 2.76, P = 0.01). The volume of femoral head necrosis decreased significantly from 2003(38.83 ± 21.01)% to 2005(30.38 ± 20.23)%(P = 0.000 2), then declined slowly from 2005 to 2013(28.99 ± 20.59)% and plateaued until 2018(25.52 ± 15.51)%. Pulmonary interstitial damage and functional decline caused by SARS mostly recovered, with a greater extent of recovery within 2 years after rehabilitation. Femoral head necrosis induced by large doses of steroid pulse therapy in SARS patients was not progressive and was partially reversible. | Peixun Zhang Jia Li Huixin Liu Na Han Jiabao Ju Yuhui Kou Lei Chen Mengxi Jiang Feng Pan Yali Zheng Zhancheng Gao Baoguo Jiang | 2020 | Bone Research2020，8，1： | 8 |
| 4 | Near-surface Geothermal Gradient Observation and Geothermal Analyses in the Xianshuihe Fault Zone,Eastern Tibetan Plateau显示文摘The Xianshuihe fault(XSHF) zone, characterized by intense tectonic activity, is located at the southwest boundary of the Bayan Har block, where several major earthquakes have occurred, including the 2008 Wenchuan and the 2013 Lushan earthquakes. This study analysed underground temperature sequence data for four years at seven measuring points at different depths(maximum depth: 18.9 m) in the southeastern section of the XSHF zone. High-frequency atmospheric noise was removed from the temperature sequences to obtain relatively stable temperature fields and heat fluxes near the measurement points. Our measurements show that the surrounding bedrock at(the seven stations distributed in the fault zone) had heat flux values range from-41.0 to 206 m W/m^2, with a median value of 54.3 m W/m^2. The results indicate a low heat flux in the northern section of DaofuKangting and a relatively high heat flux in the southern section of Kangting, which is consistent with the temperature distributions of the hot springs near the fault. Furthermore, our results suggest that the heat transfer in this field results primarily from stable underground heat conduction. In addition, the underground hydrothermal activity is also an obvious factor controlling the geothermal gradient. | LIU Qianqian SHI Yanan WEI Dongping HAN Peng CHEN Shunyun LIU Peixun LIU Liqiang | 2017 | Acta Geologica Sinica(English Edition)2017，91，2： | 8 |
| 5 | Femtosecond-laser sharp shaping of millimeter-scale geometries with vertical sidewalls显示文摘As femtosecond(fs)laser machining advances from micro/nanoscale to macroscale,approaches capable of machining macroscale geometries that sustain micro/nanoscale precisions are in great demand.In this research,an fs laser sharp shaping approach was developed to address two key challenges in macroscale machining(i.e.defects on edges and tapered sidewalls).The evolution of edge sharpness(edge transition width)and sidewall tapers were systematically investigated through which the dilemma of simultaneously achieving sharp edges and vertical sidewalls were addressed.Through decreasing the angle of incidence(AOI)from 0◦to−5◦,the edge transition width could be reduced to below 10µm but at the cost of increased sidewall tapers.Furthermore,by analyzing lateral and vertical ablation behaviors,a parameter-compensation strategy was developed by gradually decreasing the scanning diameters along depth and using optimal laser powers to produce non-tapered sidewalls.The fs laser ablation behaviors were precisely controlled and coordinated to optimize the parameter compensations in general manufacturing applications.The AOI control together with the parameter compensation provides a versatile solution to simultaneously achieve vertical sidewalls as well as sharp edges of entrances and exits for geometries of different shapes and dimensions.Both mm-scale diameters and depths were realized with dimensional precisions below 10µm and surface roughness below 1µm.This research establishes a novel strategy to finely control the fs laser machining process,enabling the fs laser applications in macroscale machining with micro/nanoscale precisions. | Qiuchi Zhu Peixun Fan Nan Li Timothy Carlson Bai Cui Jean-François Silvain Jerry L Hudgins Yong Feng Lu | 2021 | International Journal of Extreme Manufacturing2021，3，4： | 6 |
| 6 | TOOL PATH PLANNING USING VORONOI DIAGRAM AND THREE STACKS显示文摘Based on the object oriented data structure of Voronoi diagram, the algorithm of the trimmed offset generating and the optimal too l path planning of the pocket machining for multiply connected polygonal domains are studied. The intersection state transition rule is improved in this algorithm. The intersection is between the trimmed offsets and Voronoi polygon. On this basis, the trimmed offset generating and the optimal tool path planning are mad e with three stacks(I stack, C stack and P stack)in different monotonous pouches of Voronoi diagram. At the same time, a merging method of Voronoi diagram an d offsets generating for multiply connected polygonal domains is also presented. The above algorithms have been implemented in NC machining successfully, and the efficiency is fully verified. | Fu Zhuang,Liu Chengliang,Yin Yuehong,Cao Qixin,Ma Peixun (Research Institute of Robotics, Shanghai Jiaotong University) Wang Shuguo (Harbin Institute of Technology) | 2001 | Chinese Journal of Mechanical Engineering2001，14，4： | 5 |
| 7 | Bridging peripheral nerves using a deacetyl chitin conduit combined with short-term electrical stimulation显示文摘Previous studies have demonstrated that deacetyl chitin conduit nerve bridging or electrical stimulation can effectively promote the regeneration of the injured peripheral nerve.We hypothesized that the combination of these two approaches could result in enhanced regeneration.Rats with right sciatic nerve injury were subjected to deacetyl chitin conduit bridging combined with electrical stimulation(0.1 ms,3 V,20 Hz,for 1 hour).At 6 and 12 weeks after treatment,nerve conduction velocity,myelinated axon number,fiber diameter,axon diameter and the thickness of the myelin sheath in the stimulation group were better than in the non-stimulation group.The results indicate that deacetyl chitin conduit bridging combined with temporary electrical stimulation can promote peripheral nerve repair. | Zhongli Zhang Xin Li Songjie Zuo Jie Xin Peixun Zhang | 2014 | Neural Regeneration Research2014，9，10： | 5 |
| 8 | Transplantation of autologous bone marrow-derived mesenchymal stem cells for traumatic brain injury显示文摘Results from the present study demonstrated that transplantation of autologous bone marrow-derived mesenchymal stem cells into the lesion site in rat brain significantly ameliorated brain tissue pathological changes and brain edema, attenuated glial cell proliferation, and increased brain-derived neurotrophic factor expression. In addition, the number of cells double-labeled for 5-bromodeoxyuridine/glial fibrillary acidic protein and cells expressing nestin increased. Finally, blood vessels were newly generated, and the rats exhibited improved motor and cognitive functions. These results suggested that transplantation of autologous bone marrow-derived mesenchymal stem cells promoted brain remodeling and improved neurological functions following traumatic brain injury. | Jindou Jiang Xingyao Bu Meng Liu Peixun Cheng | 2012 | Neural Regeneration Research2012，7，1： | 4 |
| 9 | Aeroacoustic and aerodynamic optimization of propeller blades显示文摘It is of great significance to develop a high-efficiency and low-noise propeller optimization method for new-generation propeller aircraft design.Coupled with free form deformation method,dynamic mesh interpolation technology,optimization algorithm,surrogate model,aerodynamic calculation and aeroacoustic prediction model module,the integrated aerodynamic and aeroacoustic design method of propeller is built.The optimization design for the six-blade propeller is carried out.The non-reduction in efficiency,thrust coefficient and the minimum of aerodynamic noise is treated as the optimization design objective.The spatial vorticity distribution of the propeller before and after the design is also analyzed by using unsteady computational fluid dynamics method.The results show that the optimized propeller can effectively reduce the aerodynamic noise level.The maximum total sound pressure level can be reduced by 5 dB without reducing its aerodynamic performance.The developed method has good application potential in low-noise optimization design of propeller and other rotating machinery. | Peixun YU Jiahui PENG Junqiang BAI Xiao HAN Xiang SONG | 2020 | Chinese Journal of Aeronautics2020，33，3： | 4 |
| 10 | Electronically coupled layered double hydroxide/MXene quantum dot metallic hybrids for high-performance flexible zinc–air batteries显示文摘Precise control of the local electronic structure and properties of electrocatalysts is important for enhancing the multifunctionality and durability of electrocatalysts and for correlating the structure/chemistry with the catalytic properties.Herein,we report electronically coupled metallic hybrids of NiFe layered double hydroxide nanosheet/Ti3C2 MXene quantum dots deposited on a nitrogen-doped graphene surface(LDH/MQD/NG)for high-performance flexible Zn-air batteries(ZABs).As verified from the Mott-Schottky and Nyquist plots,as well as spectroscopic,electrochemical,and computational analyses,the electronic and chemical coupling of LDH/MQD/NG modulates the local electronic and surface structure of the active LDH to provide metallic conductivity and abundant active sites,leading to significantly improved bifunctional activity and electrocatalytic kinetics.The rechargeable ZABs with LDH/MQD/NG hybrids are superior to the previous LDH-based ZABs,demonstrating a high power density(113.8 mW cm^(-2))and excellent cycle stability(150 h at 5 mA cm^(-2)).Moreover,the corresponding quasi solid-state ZABs are completely flexible and practical,affording a high power density of 57.6 mW cm^(-2)even in the bent state,and in real-life operation of tandem cells for powering various electronic devices. | Xiaotong Han Nannan Li Peixun Xiong Min Gyu Jung Yingbo Kang Qingyun Dou Qing Liu Jin Yong Lee Ho Seok Park | 2021 | InfoMat2021，3，10： | 4 |
| 11 | Interface flux reconstruction method based on optimized weight essentially non-oscillatory scheme显示文摘Aimed at the computational aeroacoustics multi-scale problem of complex configurations discretized with multi-size mesh, the flux reconstruction method based on modified Weight Essentially Non-Oscillatory(WENO) scheme is proposed at the interfaces of multi-block grids.With the idea of Dispersion-Relation-Preserving(DRP) scheme, different weight coefficients are obtained by optimization, so that it is in WENO schemes with various characteristics of dispersion and dissipation. On the basis, hybrid flux vector splitting method is utilized to intelligently judge the amplitude of the gap between grid interfaces. After the simulation and analysis of 1D convection equation with different initial conditions, modified WENO scheme is proved to be able to independently distinguish the gap amplitude and generate corresponding dissipation according to the grid resolution. Using the idea of flux reconstruction at grid interfaces, modified WENO scheme with increasing dissipation is applied at grid points, while DRP scheme with low dispersion and dissipation is applied at the inner part of grids. Moreover, Gauss impulse spread and periodic point sound source flow among three cylinders with multi-scale grids are carried out. The results show that the flux reconstruction method at grid interfaces is capable of dealing with Computational Aero Acoustics(CAA) multi-scale problems. | Peixun YU Junqiang BAI Hai YANG Song CHEN Kai PAN | 2018 | Chinese Journal of Aeronautics2018，31，5： | 4 |
| 12 | Aligned fibrin/functionalized self-assembling peptide interpenetrating nanofiber hydrogel presenting multi-cues promotes peripheral nerve functional recovery显示文摘Nerve guidance conduits with hollow lumen fail to regenerate critical-sized peripheral nerve defects(15 mm in rats and 25 mm in humans),which can be improved by a beneficial intraluminal microenvironment.However,individual cues provided by intraluminal filling materials are inadequate to eliminate the functional gap between regenerated nerves and normal nerves.Herein,an aligned fibrin/functionalized self-assembling peptide(AFG/fSAP)interpenetrating nanofiber hydrogel that exerting synergistic topographical and biochemical cues for peripheral nerve regeneration is constructed via electrospinning and molecular self-assembly.The hydrogel possesses an aligned structure,high water content,appropriate mechanical properties and suitable biodegradation capabilities for nerve repair,which enhances the alignment and neurotrophin secretion of primary Schwann cells(SCs)in vitro,and successfully bridges a 15-mm sciatic nerve gap in rats in vivo.The rats transplanted with the AFG/fSAP hydrogel exhibit satisfactory morphological and functional recovery in myelinated nerve fibers and innervated muscles.The motor function recovery facilitated by the AFG/fSAP hydrogel is comparable with that of autografts.Moreover,the AFG/fSAP hydrogel upregulates the regeneration-associated gene expression and activates the PI3K/Akt and MAPK signaling pathways in the regenerated nerve.Altogether,the AFG/fSAP hydrogel represents a promising approach for peripheral nerve repair through an integration of structural guidance and biochemical stimulation. | Shuhui Yang Jinjin Zhu Changfeng Lu Yi Chai Zheng Cao Jiaju Lu Zhe Zhang He Zhao Yin-Yuan Huang Shenglian Yao Xiangdong Kong Peixun Zhang Xiumei Wang | 2022 | Bioactive Materials2022，7，2： | 3 |
| 13 | Color image detail enhancement based on quaternion guided filter显示文摘Color image enhancement is an active research field in image processing. Currently, many image enhancement methods are capable of enhancing the details of the color image. However, these methods only process the red, green and blue(RGB) color channels separately, which leads to color distortion easily. In order to overcome this problem, the paper presents an approach to integrate the quaternion theory into the traditional guided filter to obtain a quaternion guided filter(QGF). This method makes full use of the color information of an image to realize the holistic processing of RGB color channels. So as to preserve color information while enhancing details, this paper proposes a color image detail enhancement algorithm based on the QGF. Experimental results show that the proposed algorithm is effective in the applications of the color image detail enhancement, and enables image's edges to be more prominent and texture clearer while avoiding color distortion. Compared with the existing image enhancement methods, the proposed method achieves better enhancement performance in terms of the visual quality and the objective evaluating indicators. | Wu Kun Li Guiju Han Guangliang Yang Hang Liu Peixun | 2017 | The Journal of China Universities of Posts and Telecommunications2017，24，4： | 3 |
| 14 | Insights into correlation between satellite infrared information and fault activities显示文摘构造活动伴有材料运动和精力转移,它毫无疑问在地面上改变热放射的状态。因此在地面上基于热放射状态的变化推断今日的构造活动是可能的。然而,红外线的信息多半是的收到的卫星由许多种因素影响了。因此,需要被解决的第一个问题是在构造活动提取信息并且消除效果外部(非构造) 因素。在这研究,我们第一在这个题目上做当前的研究的评论,然后介绍技术途径和我们的研究目标。用从国家海洋、大气的管理(NOAA ) 和我们开发了的方法的卫星的红外线的禁令的 20 年的日期,我们在西方的中国调查差错活动。结果证明有土地的高剩余价值的区域出现亮度温度(LSBT ) 它是大概与在空间的指责有关,通常有跟随的主要地震的地点的一致。他们成长的价值的时间与地震的活跃时期的开始也粗略地一致。LSBT 的低频率部件领域,从小浪获得了分析,展出活跃差错的空间分布很好。“与表面下的热信息的改进联系的热穿透性索引(HPI ) ”为加速的构造运动的背景被表示了很好,并且一些关联在 HP 之间存在。I. ,并且本地指责和 seismicity。这研究提供一条新途径学习差错和他们的相互作用的最近的活动的时间空间的进化。 | MA Jin WANG Yipeng CHEN Shunyun LIU Peixun LIU Liqiang | 2006 | Progress in Natural Science:Materials International2006，16，4： | 3 |
| 15 | Defective molybdenum sulfide quantum dots as highly active hydrogen evolution electrocatalysts显示文摘铝二硫化物(瞬间 2), 为有二维的分层的结构的氢进化反应的有希望的非宝贵的 electrocatalyst,接受了在最近的年里增加注意。它的 electrocatalytic 表演被低活跃地点内容和差的电导率限制了。此处,我们报导一个灵巧、一般的 ultrafast 激光脱离方法综合为 electrocatalytic 的瞬间 2 量点(MS-QDs ) 她与充分暴露的活跃地点和高度提高的电导率。MS-QDs 被相应体积材料的 ultrafast 激光脱离在水的答案,他们部分在期间被氧化并且形成了有缺点的结构准备。同样准备的 MS-QDs 在 electrocatalytic 表明了高活动和稳定性她的由于他们的很大的表面区域,有缺点的结构,许多活跃地点,和高电导率。现在的 MS-QDs 能也在光学发现申请,察觉到,精力存储,和变换技术。 | Gang Ou Peixun Fan Xiaoxing Ke Yushuai Xu Kai Huang Hehe Wei Wen Yu Hongjun Zhang Minlin Zhong Hui Wu Yadong Li | 2018 | Nano Research2018，11，2： | 3 |
| 16 | A redox-active conjugated microporous polymer cathode for highperformance lithium/potassium-organic batteries显示文摘Organic redox-active materials have emerged as a class of electrode materials for rechargeable batteries due to their high redox activity,low cost,structure diversity and flexibility.However,the high solubility of organic small molecules in organic electrolytes commonly leads to the fast capacity decay with cycling.Herein,we report a redox-active conjugated microporous polymer of poly(pyrene-co-anthraquinone)(Py Aq)cathode material consisting of pyrene and anthraquinone units.Benefiting from the highly cross-linked polymer structure with insoluble nature in organic electrolytes,the high surface area and the plentiful redox-active carbonyl groups,the Py Aq cathode demonstrates outstanding electrochemical performances for both lithium-ion batteries(LIBs)and potassium-ion batteries(KIBs).Specifically,the Py Aq cathode for LIBs delivers a high reversible capacity of 169 m Ah g^-1 at the current density of 20 m A g^-1,a high rate capability(142 m Ah g^-1 at 1000 m A g^-1)and an excellent cycling stability for 4000 cycles.Additionally,the Py Aq cathode for KIBs also exhibits a high reversible capacity of143 m Ah g^-1 with a long cycling life over 800 cycles.The excellent electrochemical performance demonstrates that the newly developed Py Aq could be an attractive cathode material for the advanced energy storage technologies. | Lian-Wei Luo Chong Zhang Peixun Xiong Yongbo Zhao Wenyan Ma Yu Chen Jing Hui Zeng Yunhua Xu Jia-Xing Jiang | 2021 | Science China Chemistry2021，64，1： | 3 |
| 17 | Solubility of ethane int-butanol + water mixtures and a hydrophobic interaction study显示文摘 | Peixun Li Yilin Wang Buxing Han Haike Yan Ruilin Liu | 1996 | Journal of Solution Chemistry1996，，12： | 1 |
| 18 | Flap side-edge noise mechanism and shape modification noise reduction design显示文摘 | HAN Xiao ZHOU Wangyi BAI Junqiang YU Peixun LI Yi SONG Xiang | 2018 | Chinese Journal of Acoustics2018，37，3： | 1 |
| 19 | Reproduction and reproductive organs in Neophocaena asiaeorientalis from the Yangtze River 显示文摘 | Peixun C Renjun L Harrison R J | 1982 | Aquatic Mammals1982，9，1： | 1 |
| 20 | Reproduction and reproductive system in the Baiji, Lipotes vexillifer 显示文摘 | Peixun C Renjun L Kejie L | 1984 | Rep Int Whal Comm (Special Issue)1984，，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员