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    题名 作者 年代 出处 被引量
1Bolt support mechanism based on elastic theory显示文摘Mechanical model of anchorage surrounding rock considering tray effect was established based on elastic theory,in order to study the mechanism of bolt supporting.Elastic solutions of normal force at point in the interior of a semi-infnite solid were obtained by means of classical displacement function method in elasticity.The factors which influence stress of bolted surrounding rock,such as the length of bolt and tray effect,were analyzed.The absolute value of stress along bolt axes decreased rapidly with an increase in radical distance and the maximum appeared near ends of bolt.With increasing radical distance,the value of radical stress changed from positive to negative roughly and then increased to zero,with maximum at the middle of bolt.The evolution of hoop stress as radical distance increasing was similar with stress along bolt axes.With an increase in depth,the radical effect ranges of all normal stress components were reduced.These suggest that the effect from tray on stress along bolt axes of bolted surrounding rock could be neglected,except near surface of surrounding rock.Guo Xiaoqian Mao Xianbiao Ma Chao Huang Jinglong 2013International Journal of Mining Science and Technology2013,23,4:9
2Nonlinear distortion and spatial dispersion of intense terahertz generation in lithium niobate via the tilted pulse front technique显示文摘We systematically investigate the influences of the input infrared spectrum, chirp, and polarization on the emitted intense terahertz spectrum and spatial dispersion in lithium niobate via optical rectification. The terahertz yield and emission spectrum depend on both the chirp and spectrum of the input pump laser pulses. We also observe slight non-uniform spatial dispersion using a knife-edge measurement, which agrees well with the original predictions. The possible mechanism is the nonlinear distortion effect caused by high-energy laser pumping.Our study is very important and useful for developing intense terahertz systems with applications in extreme terahertz sciences and nonlinear phenomena.BAOLONG ZHANG SHANGQING LI SHUSU CHAI XIAOJUN Wu JINGLONG MA LIMING CHEN YUTONG LI 2018Photonics Research2018,6,10:4
3A novel multifunctional nanocomposite C225-conjugated Fe3O4/Ag enhances the sensitivity of nasopharyngeal carcinoma cells to radiotherapy显示文摘放射疗法是为鼻咽的癌的主要处理,上皮的起源的一个恶意的肿瘤。在这个过程,有高敏感的 tracer 为在放射疗法的诊断成像是枢轴的。这里,我们设计了新奇的多功能的磁性的银 nanocomposite, Fe3O4/Ag 结合了受体特定的抗体(C225 ) 到一个表皮的生长因素,它能潜在地经由磁性的回声成像为同步癌症治疗和诊断被使用。Fe3O4/Ag/C225 的特征被传播电子显微镜学决定,精力散 X 光检查光谱学,紫外系列,并且动态轻散布。结果证明 Fe3O4/Ag/C225 nanoparticles 在水里球形、分散很好。C225 的活动被保存 80% 在 Fe3O4/Ag/C225 nanoparticles。Futhermore,我们在 vitro 为人的鼻咽的癌房间线(CNE ) 测试了 nanocomposite 的 cytotoxicity 和放射敏感度。MTT 分析表明 Fe3O4/Ag/C225 能在一个剂量依赖者和时间依赖者举止禁止 CNE 的增长。clonogenic 试金显示与 X 光检查治疗相结合的 Fe3O4/Ag/C225 能增加 CNE 的敏感到照耀。在一篇摘要,新奇多功能的 nanocomposite Fe3O4/Ag/C225 可能是为对待的潜在的 radiosensitizer 诽谤在诊所的肿瘤。Di Zhao Xinchen Sun Jinglong Tong Jun Ma Xiaodong Bu Ruizhi Xu Renhua Fan 2012Acta Biochimica et Biophysica Sinica2012,44,8:3
4Angular distribution of terahertz emission from laser interactions with solid targets显示文摘Intense femtosecond laser-plasma interactions can produce high power terahertz radiations.In our experiment,the polished copper target was irradiated by a p-polarized laser with intensity of more than 1018 W/cm2 at an incident angle of 67.5 from the target normal.The THz energy from three dierent detection angles is measured.The maximum emission is found in the direction at an angle of 45 to the laser backward direction,which is more than one order of magnitude higher than in the other two directions.A simple theoretical model has been established to explain the measurements.DU Fei LI Chun ZHOU MuLin WANG WeiMin SU LuNing ZHENG Yi GE XuLei LI YuTong MA JingLong LIU XiaoLong ZHANG Lu SHENG ZhengMing CHEN LiMing LU Xin DONG QuanLi WANG ZhaoHua WEI ZhiYi ZHANG Jie 2012Science China(Information Sciences)2012,55,1:2
5Additive manufacturing of a high-strength ZrC-SiC and TC4 gradient structure based on a combination of laser deposition technique and brazing显示文摘A ZrC-SiC and TC4 gradient structure(ZTGS)was additively manufactured through the laser deposition technique and brazing process.The research results indicated that SiC-reinforced TC4-based gradient layers could be obtained on the TC4 surface by laser deposition.ZrC-SiC and TC4 coated with gradient layers were brazed using an AgCuTi filler to fabricate the ZTGS.The effects of the gradient structure and brazing parameters on the ZTGS strength were investigated.With an increase in Layer II and Layer III thickness,the ZTGS shear strength increased.The brazing temperature and holding time affected the ZTGS shear strength by controlling the formation and distribution of the Cu4Ti phase in the brazing zone.The strengthening mechanism of the ZTGS was revealed by analyzing the residual stress distribution in the ZTGS.Compressive residual stress was formed in ZrC-SiC adjacent to the TC4 substrate or the deposited gradient layer,which was found to negatively affect the properties of the ZTGS.The increase in gradient layer thickness reduced the maximum residual stress in ZrC-SiC,and the effect of Layer III on the residual stress was more significant than that of Layer II.The calculated residual stress evolution matched the ZTGS property values well,revealing the strengthening mechanism.Qian Wang Junmiao Shi Lixia Zhang Jiangtao Xiong Jinglong Li Ninshu Ma Jicai Feng 2021Journal of Materiomics2021,7,4:2
6Numerical simulation of linear friction welding of titanium alloy:effects of processing parameters显示文摘Li Wenya Ma Tiejun Li Jinglong 0,,:1
7Developm ent of the Angular Multiplexing System of KrFLaser显示文摘Gong Kun Ma Jinglong Shan Yusheng Wang Naiyan 1998Annual Report of China Institute of Atomic Energy1998,,0:1
8The influence of target material and thickness on proton energy and angular distribution显示文摘The paper has studied the influence of target material and thickness on energy and angular distributions of the protons generated by using an 800 nm,60 fs,0.24 J laser pulse to irradiate solid target foils.The results show that the initial density and thickness of the targets will affect the formation of the acceleration sheath fields in the target normal direction.For the same target thickness,using lower density target materials can obtain a higher proton maximum energy.However,lower density targets tend to be deformed due to the shock waves launched by the laser pulses,making the proton spatial distribution more divergent.SU LuNing LIU BiCheng LIN XiaoXuan LIU Feng DU Fei LIU XiaoLong ZHENG Yi GE XuLei LI YuTong SHENG ZhengMing CHEN LiMing WANG WeiMin MA JingLong LU Xin WEI ZhiYi CHEN JiaEr ZHANG Jie 2013Science China(Physics,Mechanics & Astronomy)2013,56,2:1
9Numerical simulation of linear friction welding of titanium alloy: effects of processing parameters 显示文摘Li Wenya Ma Tiejun Li Jinglong 2010Materials and Design2010,31,3:1
10Effect of backplate diffusivity on microstructure and mechanical properties of friction stir welded joints显示文摘Zhihan Zhang Wenya Li Junjun Shen Y.J. Chao Jinglong Li Yu-E. Ma 2013Materials and Design2013,,:1
11Numerical simulation of linear friction welding of titanium alloy: Effects of processing parameters显示文摘Wen-Ya Li Tiejun Ma Jinglong Li 2009Materials and Design2009,,3:1
12Numerical simulation of linear friction welding of titanium alloy:Effects of processing parameters显示文摘Wenya Li Tiejun Ma Jinglong Li 2010Materials and Design2010,1,3:1
13Numerical simulation of linear friction welding of titanium alloy: Effects of processing parameters显示文摘Wen-Ya Li Tiejun Ma Jinglong Li 2009Materials and Design2009,,3:1
14Polarization of terahertz emission out of incident plane from laser interactions with solid targets显示文摘A powerful terahertz(THz) pulse was produced by a p-polarized,70 fs,800 nm laser interacting with solid targets at an incident angle of 45°.The polarization of the THz emission was measured out of the laser incident plane.The results showed that it was linearly polarized.We established a surface current model to explain this phenomenon,assuming that the transient current moving along the plasma surface was responsible for the generation of the THz emission.The model expectation and the experimental result were in good agreement.DU Fei LI Chun ZHOU MuLin WANG WeiMin SU LuNing ZHENG Yi LI YuTong MA JingLong SHENG ZhengMing CHEN LiMing LU Xin WANG ZhaoHua WEI ZhiYi ZHANG Jie 2012Science China(Physics,Mechanics & Astronomy)2012,55,4:1
15MOF-derived zinc manganese oxide nanosheets with valence-controllable composition for high-performance Li storage显示文摘Zinc manganese oxide(ZMO)system represents a notable family of mixed transition metal oxides(MTMOs)because of their superiority of the high theoretical capacity,adequacy of natural content,and low cost.However,the methods to match both the reliable synthesis and the designable construction of large-sized two-dimensional(2D)ZMO nanosheets are still considered as grand challenges.Herein,we have successfully realized the preparation of 2D ZMO nanosheets with large lateral sizes up to~20 mm by simple pyrolysis of 2D metal–organic framework(MOF)nanosheets precursor.The growth mechanism of 2D MOF is proposed to be based on the lamellar micelles formed by polyvinyl pyrrolidone(PVP).The obtained 2D and porous ZMO nanosheets exhibit high specific capacity as well as good rate capability.More importantly,the as-prepared ZMO electrode shows a remarkable capacity increment upon cycling(from 832 mAh g^(-1) at the 2nd cycle to 1418 mAh g^(-1) at the 700th cycle,at 1 A g^(-1)).Through simple adjustment of the calcination temperature,the valence state of Mn species in the yielding ZMO samples can be fine-tuned.Through systematic investigation towards these ZMOs containing different Mn species,the extra specific capacity is revealed to be chiefly on account of the arising of the valence state of Mn upon the cycling process.Moreover,it is disclosed that the higher-valent Mn the pristine ZMO contains,the more additional capacity it gains upon cycling.We believe that this work will inspire more detailed analysis on the relationship between the valence state of Mn and extra capacity.Yu Du Yihan Xu Weiwei Zhou Yaoyang Yu Xinzhou Ma Fei Liu Jinglong Xu Yongming Zhu 2021Green Energy & Environment2021,6,5:1
16Proton angular distribution research by a new angle-resolved proton energy spectrometer显示文摘The proton spectral and angular distributions simultaneously within the target normal direction and laser propagation direction by using an angle-resolved proton energy spectrometer are studied.For the protons generated in the interactions of 100 fs,800nm laser pulses with aluminum foil targets,the deviations of proton beam centers of different energies from the target normal direction towards the laser propagation direction are different.This is probably because of the toroidal magnetic fields generated at the rear target surface,which deflect protons transversely.As a result,protons in low energy range have large deviation angles,protons in middle energy range have the smallest deviation angles,while protons in high energy tail have large deviation angles.SU LuNing ZHENG Yi LIU Meng HU ZhiDan WANG WeiMin YUAN XiaoHui XU MiaoHua SHENG ZhengMing SHEN ZhongWei FAN HaiTao LI YuTong MA JingLong LU Xin CHEN LiMing WANG ZhaoHua WEI ZhiYi ZHANG Jie 2014Science China(Physics,Mechanics & Astronomy)2014,57,5:1
17Simultaneous enhancement of strength and ductility in friction stir processed 2205 duplex stainless steel with a bimodal structure:experiments and crystal plasticity modeling显示文摘Achieving excellent strength-ductility synergy is a long-lasting research theme for structural materials.However,attempts to enhance strength usually induce a loss of ductility,i.e.,the strength-ductility trade-off.In the present study,the strength-ductility trade-off in duplex stainless steel(DSS)was overcome by developing a bimodal structure using friction stir processing(FSP).The ultimate tensile strength and elongation were improved by 140%and 109%,respectively,compared with those of the asreceived materials.Plastic deformation and concurrent dynamic recrystallization(DRX)during FSP were responsible for the formation of bimodal structure.Incompatible deformation resulted in the accumulation of dislocations at the phase boundaries,which triggered interpenetrating nucleation between the austenite and ferrite phases during DRX,leading to a bimodal structure.The in situ mechanical responses of the bimodal structure during tensile deformation were investigated by crystal plasticity finite element modeling(CPFEM).The stress field distribution obtained from CPFEM revealed that the simultaneous enhancement of strength and ductility in a bimodal structure could be attributed to the formation of a unique dispersion-strengthened system with the austenite and ferrite phases.It is indicated that the present design of alternating fine austenite and coarse ferrite layers is a promising strategy for optimizing the mechanical properties of DSSs.Yanying Hu Zexin Fang Yongbing Peng Weiqi Yang Xianfeng Ma Jinglong Li Yunqiang Zhao Biao Wang 2022Science China(Physics,Mechanics & Astronomy)2022,65,2:0
18Big-data-accelerated aperiodic Si/Ge superlattice prediction for quenching thermal conduction via pattern analysis显示文摘Thermal conductivity of material is one of the basic physical properties and plays an important role in manipu-lating thermal energy.In order to accelerate the prediction of material structure with desired thermal property,machine learning algorithm has been widely adopted.However,in the optimization of multivariable material structure such as different lengths or proportions,the machine learning algorithm may be required to be recon-ducted again and again for each variable,which will consume a lot of computing resources.Recently,it has been found that the thermal conductivity of aperiodic superlattices is closely related to the degree of the structural ran-domness,which can also be reflected in their local pattern structures.Inspired by these,we propose a new pattern analysis method,in which machine learning only needs to be carried out for one time,and through which the optimal structure of different variables with low thermal conductivity can be obtained.To verify the method,we compare the thermal conductivities of the structure obtained by pattern analysis,conventional machine learning,and previous literature,respectively.The pattern analysis method is validated to greatly reduce the prediction time of multivariable structure with high enough accuracy and may promote further development of material informatics.Yida Liu Run Hu Yan Wang Jinglong Ma Zhangcan Yang Xiaobing Luo 2021Energy and AI2021,3,1:0
19Influence of Nano-Nd_2O_3 on Crystallization Mechanism of Fused Quartz显示文摘The isothermal crystallization kinetics of pure fused quartz of blank specimen N- 0 and specimen N- 3 in troduced with 3 mass% nano-Nd2O3 was researched by means of XRD and Avrami equation. The results show that crystallization mechanisms of fused quartz in two specimens are both heterogeneous nucleation type caused by surface structure defects,and the grain growth mode of two specimens are both two-dimensional growth ac companied by one-dimensional and three-dimensiona growths,specimen N- 3 has the higher degree of grain growth in one-dimensional and three-dimensional than specimen N- 0; introducing nano-Nd2O3 can obviously reduce the 'active nucleation sites'of glass structure on the fused quartz particles surface,enhance the stability o glass structure,increase the activation energy of fused quartz crystallization from 874 k J · mol- 1to 1 270 k J·mol- 1,and decrease the crystallization rate of fused quartz obviously.GU Yinglei BU Jinglong CHEN Yuejun MA Chao WANG Zhifa 2015China's Refractories2015,24,2:0
20Human Somatosensory Processing and Artificial Somatosensation显示文摘In the past few years,we have gained a better understanding of the information processing mechanism in the human brain,which has led to advances in artificial intelligence and humanoid robots.However,among the various sensory systems,studying the somatosensory system presents the greatest challenge.Here,we provide a comprehensive review of the human somatosensory system and its corresponding applications in artificial systems.Due to the uniqueness of the human hand in integrating receptor and actuator functions,we focused on the role of the somatosensory system in object recognition and action guidance.First,the low-threshold mechanoreceptors in the human skin and somatotopic organization principles along the ascending pathway,which are fundamental to artificial skin,were summarized.Second,we discuss high-level brain areas,which interacted with each other in the haptic object recognition.Based on this close-loop route,we used prosthetic upper limbs as an example to highlight the importance of somatosensory information.Finally,we present prospective research directions for human haptic perception,which could guide the development of artificial somatosensory systems.Luyao Wang Lihua Ma Jiajia Yang Jinglong Wu 2021Cyborg and Bionic Systems2021,,1:0
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