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| 1 | The Credibility Models under LINEX Loss Functions显示文摘LINEX(linear and exponential) loss function is a useful asymmetric loss function. The purpose of using a LINEX loss function in credibility models is to solve the problem of very high premium by suing a symmetric quadratic loss function in most of classical credibility models. The Bayes premium and the credibility premium are derived under LINEX loss function. The consistency of Bayes premium and credibility premium were also checked. Finally, the simulation was introduced to show the differences between the credibility estimator we derived and the classical one. | WEN Li-min ZHANG Xiankun ZHENG Dan FANG .ling | 2012 | Chinese Quarterly Journal of Mathematics2012,27,3: | 8 |
| 2 | Dynamic finite element model updating of prestressed concrete continuous box-girder bridge显示文摘动态有限元素模型(女性) 一座对的具体连续盒子系结桥,把 Tongyang 称为运河桥牌,用一个真实代码的加速的基因算法(RAGA ) 基于周围的颤动测试的结果(AVT ) 被造并且更新。客观功能基于自然频率和形式的保证标准(MAC ) 度量标准被定义评估更新女性。二个客观函数被定义充分说明在 AVT 结果和更新的女性的预言之间的自然频率和 MAC 的相对错误和标准差。动态地更新了桥罐头女性更好代表它的结构的动力学并且在长期的健康在桥的服务生活上监视,条件评价和损坏鉴定用作一条基线。 | Lin Xiankun Zhang Lingmi Guo Qintao Zhang Yufeng | 2009 | Earthquake Engineering and Engineering Vibration2009,8,3: | 6 |
| 3 | Accelerated flow softening and dynamic transformation of Ti-6Al-4V alloy in two-phase region during hot deformation via coarsening αgrain显示文摘The flow softening is an important phenomenon during hot deformation of metallic materials.In the present work,a more evident flow softening of Ti-6 Al-4 V alloy when deformed in two-phase region was observed in coarser a grain sample,which was attributed to an accelerated dynamic transformation from harder α phase into β phases.Notably,full β microstructure was observed in coarse grain samples at strain of 1.2,while retained a phase was observed in fine a grain specimens.In the views of thermodynamics and crystallographic analysis,the in-depth mechanisms of dynamic transformation were further investigated. | Xiankun Ji Baoqi Guo Fulin Jiang Hong Yu Dingfa Fu Jie Teng Hui Zhang John J.Jonas | 2020 | Journal of Materials Science & Technology2020,36,1: | 5 |
| 4 | Flexible electronics and optoelectronics of 2D van der Waals materials显示文摘Flexible electronics and optoelectronics exhibit inevitable trends in next-generation intelligent industries,including healthcare and wellness,electronic skins,the automotive industry,and foldable or rollable displays.Traditional bulk-material-based flexible devices considerably rely on lattice-matched crystal structures and are usually plagued by unavoidable chemical disorders at the interface.Two-dimensional van der Waals materials(2D VdWMs)have exceptional multifunctional properties,including large specific area,dangling-bond-free interface,plane-to-plane van der Waals interactions,and excellent mechanical,electrical,and optical properties.Thus,2D VdWMs have considerable application potential in functional intelligent flexible devices.To utilize the unique properties of 2D VdWMs and their van der Waals heterostructures,new designs and configurations of electronics and optoelectronics have emerged.However,these new designs and configurations do not consider lattice mismatch and process incompatibility issues.In this review,we summarized the recently reported 2D VdWM-based flexible electronic and optoelectronic devices with various functions thoroughly.Moreover,we identified the challenges and opportunities for further applications of 2D VdWM-based flexible electronics and optoelectronics. | Huihui Yu Zhihong Cao Zheng Zhang Xiankun Zhang Yue Zhang | 2022 | International Journal of Minerals,Metallurgy and Materials2022,29,4: | 2 |
| 5 | Inhibition of furin by bone targeting superparamagnetic iron oxide nanoparticles alleviated breast cancer bone metastasis显示文摘Breast cancer bone metastasis poses significant challenge for therapeutic strategies.Inside the metastatic environment,osteoclasts and tumor cells interact synergistically to promote cancer progression.In this study,the proprotein convertase furin is targeted due to its critical roles in both tumor cell invasion and osteoclast function.Importantly,the furin inhibitor is specifically delivered by bone targeting superparamagnetic iron oxide(SPIO)nanoparticles.Our in vitro and in vivo data demonstrate that this system can effectively inhibit both osteoclastic bone resorption and breast cancer invastion,leading to alleviated osteolysis.Therefore,the bone targeting&furin inhibition nanoparticle system is a promising therapeutic and diagnostic strategy for breast cancer bone metastasis. | Yichuan Pang Li Su Yao Fu Fan Jia Chenxi Zhang Xiankun Cao Wenxin He Xueqian Kong Jiake Xu Jie Zhao An Qin | 2021 | Bioactive Materials2021,6,3: | 2 |
| 6 | Strain modulation on graphene/ZnO nanowire mixed- dimensional van der Waals heterostructure for high- performance photosensor显示文摘因为它在紧张下面避免契约破裂和原子重建,混合维的货车 der Waals (vdW ) heterostructure 是为拉紧的电子学和光电子的一块有希望的积木。我们为高效的 photosensing 建议在二维的 graphene 和一个维的 ZnO nanowire 之间的新奇混合维的 vdW heterostructure。由利用 ZnO 的压电的性质,紧张调整在混合维的 vdW heterostructure 被完成优化设备表演。由联合超离频在 graphene 的电子转移速度并且极其在 ZnO 的洞的长寿时间, 1.87 ? 的突出的 responsivity?? | Shuo Liu Qingliang Liao Zheng Zhang Xiankun Zhang Shengnan Lu Lixin Zhou Mengyu Hong Zhuo Kang Yue Zhang | 2017 | Nano Research2017,10,10: | 2 |
| 7 | Single-Atom Vacancy Doping in Two-Dimensional Transition Metal Dichalcogenides显示文摘CONSPECTUS:Faced with the growing quests of higher-performance chips,developing new channel semiconductors immune to short channel effects has become a realistic option for continuing Moore’s Law.With outstanding gate electrostatic capacitance,stable chemical properties,and suitable bandgap,two-dimensional(2D)transition metal dichalcogenides(TMDCs)are considered as potential candidates for next-generation channel materials.However,the practical applications of 2D TMDCs are severely limited by stable,precise,and controllable doping technologies,due to their ultrathin body and dangling bond-free surface.Compared to three-dimensional semiconductors,donors in 2D semiconductors need larger ionization energy which can be attributed to the reduced screening of Coulomb interaction and the larger bandgap induced by quantum confinement.Limited by the ultrathin body of 2D TMDCs and the strong film−substrate charge transfer,typical silicon-based substitutional doping technology encounters some headache difficulties in 2D TMDCs and hardly achieves high-concentration doping.The other two doping technologies also cannot take on this task either;local gate electrostatic doping cannot leave the aid of the external electric field.And surface charge transfer doping of molecule adsorbents behaves unstably(e.g.,thermal desorption)or ineffectively modifies the original electronic structure.Fortunately,single-atom vacancies can effectively and precisely adjust the carrier concentration of 2D TMDCs and significantly enhance their conductivity.Therefore,clarifying the work rules and function mechanism of single-atom vacancy doping in 2D TMDCs is beneficial in creating a brand-new optimization strategy of electrical properties and overcoming the technical obstacles of the“lab-to-fab”transition for their practical applications in high-performance electronics and optoelectronics.In this Account,we summarize the state-of-the-art progress in single-atom vacancy doping in 2D TMDCs and highlight the applications in optoelectronic and electronic devices.First,the common defects and the density-largest-defect type in 2D TMDCs are demonstrated through experimental characterizations.Second,the healing and manufacturing strategies of chalcogen vacancies in 2D TMDCs are systematically summarized.Third,we clarify the doping mechanism of single-atom vacancies in 2D TMDCs and its regulation of the electrical properties including carrier concentration and carrier mobility.Fourth,the correlations between chalcogen vacancies in 2D TMDCs and the optical signals from Raman and photoluminescence spectroscopies are established,which will help to quickly and nondestructively evaluate the chalcogen vacancy concentration.Fifth,the current applications of single-atom vacancy doping of 2D TMDCs materials are reviewed,including complementary metal−oxide semiconductor(CMOS)logic inverters,homojunctions,Schottky diodes,and photovoltaic devices.Finally,the potential challenges and future development trends of single-atom vacancy doping for next-generation electronic and optoelectronic devices are pointed out.Overall,this Account guides on controllable and precise doping technologies for researchers in these fields from materials,electronics,and optoelectronics to promote the practical applications of 2D TMDCs. | Xiankun Zhang Li Gao Huihui Yu Qingliang Liao Zhuo Kang Zheng Zhang Yue Zhang | 2021 | Accounts of Materials Research2021,2,8: | 2 |
| 8 | Seasonal changes in Cyclobalanopsis glauca transpiration and canopy stomatal conductance and their dependence on subterranean water and climatic factors in rocky karst terrain显示文摘 | HUANG Yuqing LI Xiankun ZHANG Zhongfeng | 2011 | JHydrol2011,402,12: | 1 |
| 9 | Synergistic-engineered van der Waals photodiodes with high efficiency显示文摘Van der Waals(vdW)heterostructures based on two-dimensional transitionmetal dichalcogenides have provided unprecedented opportunities for photovoltaic detectors owing to their strong light-matter interaction and ultrafast interfacial charge transfer.Despite continued advancement,insufficient control of photocarrier behaviors still limits the external quantum efficiency(EQE)and operation speed of such detectors.Here,we propose a synergistic strategy of contact-configuration design and thickness-modulation to construct high-performance vdW photodiodes based on the typical type II heterostructure(MoS2/WSe2).Through integrating three contact architectures into one device to exclude other factors,we solid the superiority of designed 1L-MoS2/WSe2/graphene heterostructures incorporating efficient photocarrier collection and gate modulation.Together with leveraging the layer-numberdependent properties of WSe2,we observe the critical thickness of WSe2(11 layers)for the highest EQE,which verifies the thickness-dependent competition between photocarrier generation,dissociation,and collection.Finally,we demonstrate the synergistic-engineered vdW heterostructure can trigger record-high EQE(61%)and manifest ultrafast photoresponse(4.1μs)at the atomically thin limit(8 nm).The proposed strategy enables architecture-design and thickness-engineering to unlock the potential to realize high-performance optoelectronic devices. | Baishan Liu Xiankun Zhang Junli Du Jiankun Xiao Huihui Yu Mengyu Hong Li Gao Yang Ou Zhuo Kang Qingliang Liao Zheng Zhang Yue Zhang | 2022 | InfoMat2022,4,3: | 1 |
| 10 | Comparative hot deformation characters of Al–Mn–Mg–RE alloy and Al–Mn–Mg–RE–Ti alloy显示文摘 | Fulin Jiang Hui Zhang Xiankun Ji Xianna Meng Luoxing Li | 2014 | Materials Science & Engineering A2014,,: | 1 |
| 11 | The key theorem of learning theory on uncertainty space显示文摘 | YAN Shuiing HA Minghu ZHANG Xiankun | 2009 | Sixth International Symposium Neural Networks2009,,6: | 1 |
| 12 | Revealing the decomposition mechanisms of dislocations and metastableα’phase and their effects on mechanical properties in a Ti-6Al-4V alloy显示文摘The metastableα’phase and dislocation characteristics(e.g.,density and constituents)are of vital importance for the mechanical responses of(α+β)titanium alloys.In this work,to reveal the in-depth decomposition mechanisms of dislocations and metastableα’and their influences on mechanical properties in a Ti-6Al-4V(α+β)alloy,the thermal stability of different microstructures tailored by various cooling approaches were investigated utilizing scanning electron microscope,electron backscattered diffraction,transmission electron microscope and X-ray diffraction line profile analysis.The results showed that the initial characteristics ofα’andαlaths and dislocation density were influenced by the cooling methods remarkably.The thermal stability of Ti-6Al-4V alloy increased with decreasing cooling rate.The improvement in thermal stability can be ascribed by the decrement in dislocations,partitioning of the alloying elements and grain orientations variation of theα’lath andαphase.It is also found that the plastic strain accommodation ofβ→α’transformation was dominated by dislocations.During stabilization annealing treatments,the,and dislocations simultaneously decomposed.The decomposition of dislocations and metastableα’phase during various stabilization annealing and the particular twins and stacking faults microstructures formed during quenching have a great influence on the properties of the studied Ti-6Al-4V alloy. | Jinlong Su Xiankun Ji Jin Liu Jie Teng Fulin Jiang Dingfa Fu Hui Zhang | 2022 | Journal of Materials Science & Technology2022,,12: | 0 |
| 13 | Record-high saturation current in end-bond contacted monolayer MoS_(2) transistors显示文摘Monolayer two-dimensional(2D)semiconductors are emerging as top candidates for the channels of the future chip industry due to their atomically thin body and superior immunity to short channel effect.However,the low saturation current caused by the high contact resistance(R_(c))in monolayer MoS2 field-effect transistors(FETs)limits ultimate electrical performance at scaled contact lengths,which seriously hinders application of monolayer MoS_(2 )transistors.Here we present a scalable strategy with a clean end-bond contact scheme that leads to size-independent electrodes and ultralow contact resistance of 2.5 kΩ·μm to achieve record high performances of saturation current density of 730μA·μm^(-1)at 300 K and 960μA·μm^(-1)at 6 K.Our end-bond contact strategy in monolayer MoS2 FETs enables the great potential for atomically thin integrated circuitry. | Jiankun Xiao Zhuo Kang Baishan Liu Xiankun Zhang Junli Du Kuanglei Chen Huihui Yu Qingliang Liao Zheng Zhang Yue Zhang | 2022 | Nano Research2022,15,1: | 0 |
| 14 | Silicon-processes-compatible contact engineering for twodimensional materials integrated circuits显示文摘Two-dimensional(2D)semiconductors,especially transition metal dichalcogenides(TMDCs),have been proven to be excellent channel materials for the next-generation integrated circuit(IC).However,the contact problem between 2D TMDCs and metal electrodes has always been one of the main factors restricting their development.In this review,we summarized recent work on 2D TMDCs contact from the perspective of compatible integration with silicon processes and practical application requirements,including the contact performance evaluation indicators,special challenges encountered in 2D TMDCs,and recent optimization methods.Specifically,we sorted out and highlighted the performance indicators of 2D TMDCs contacts,including contact resistance(RC),contact scaling,contact stability,and contact electrical/thermal conductivity.Special challenges of 2D TMDCs and metal contact,such as severe Fermi level pinning,large RC,and difficult doping,are systematically discussed.Furthermore,typical methods for optimizing 2D TMDCs RC,edge contact strategies for scaling contact lengths,and solutions for improving contact stability are reviewed.Based on the current research and problems,the development direction of 2D TMDCs contacts that meet the silicon-based compatible process and application performance requirements is proposed. | Li Gao Zhangyi Chen Chao Chen Xiankun Zhang Zheng Zhang Yue Zhang | 2023 | Nano Research2023,16,11: | 0 |
| 15 | Two-dimensional transition metal dichalcogenides for post-silicon electronics显示文摘Rapid advancements in information technology push the explosive growth in data volume,requiring greater computing-capability logic circuits.However,conventional computing-capability improving technology,which mainly relies on increasing transistor number,encounters a significant challenge due to the weak field-effect characteristics of bulk siliconbased semiconductors.Still,the ultra-thin layered bodies of two-dimensional transition metal dichalcogenides(2D-TMDCs)materials enable excellent field-effect characteristics and multiple gate control ports,facilitating the integration of the functions of multiple transistors into one.Generally,the computing-capability improvement of the transistor cell in logic circuits will greatly alleviate the challenge in transistor numbers.In other words,one can only use a small number,or even just one,2DTMDCs-based transistors to conduct the sophisticated logic operations that have to be realized by using many traditional transistors.In this review,from material selection,device structure optimization,and circuit architecture design,we discuss the developments,challenges,and prospects for 2D-TMDCs-based logic circuits. | Xiankun Zhang Hang Zhao Xiaofu Wei Yanzhe Zhang Zheng Zhang Yue Zhang | 2023 | National Science Open2023,2,4: | 0 |
| 16 | Universal transfer of full-class metal electrodes for barrier-free two-dimensional semiconductor contacts显示文摘Metal–semiconductor contacts are crucial components in semiconductor devices.Ultrathin two-dimensional transition-metal dichalcogenide semiconductors can sustain transistor scaling for next-generation integrated circuits.However,their performance is often degraded by conventional metal deposition,which results in a high barrier due to chemical disorder and Fermi-level pinning(FLP).Although,transferring electrodes can address these issues,they are limited in achieving universal transfer of full-class metals due to strong adhesion between pre-deposited metals and substrates.Here,we propose a nanobelt-assisted transfer strategy that can avoid the adhesion limitation and enables the universal transfer of over 20 different types of electrodes.Our contacts obey the Schottky–Mott rule and exhibit a FLP of S=0.99.Both the electron and hole contacts show record-low Schottky barriers of 4.2 and 11.2 meV,respectively.As a demonstration,we construct a doping-free WSe2 inverter with these high-performance contacts,which exhibits a static power consumption of only 58 pW.This strategy provides a universal method of electrode preparation for building high-performance post-Moore electronic devices. | Mengyu Hong Xiankun Zhang Yu Geng Yunan Wang Xiaofu Wei Li Gao Huihui Yu Zhihong Cao Zheng Zhang Yue Zhang | 2024 | InfoMat2024,6,1: | 0 |
| 17 | Diffusion process for efficiency improvement with high sheet resistance on traditional production lines of solar cell显示文摘By optimizing the diffusion temperature and time,four groups of samples with different sheet resistances are achieved.The front screen printing pattern and firing temperature are fine-tuned according to the needs.The performance of the low-and-plateau-temperature doping recipe(as recipe A)is better than that of the low-and-multiple-temperature doping recipe(as recipe B).And the 19.24%efficiency of volume production of monocrystalline solar cells with 238.95 mm2 and 80?/sq sheet resistance is obtained in the traditional process line.0.48%more efficiency is achieved than 60?/sq due to the reduction of the phosphorus surface doping and shallow junction by the low-and-plateau-temperature diffusion recipe.The module test shows that by using two drive-in zones,not only do we have a higher efficiency,but also have a stabler and lower power loss in encapsulation manufacture.It is showed that power of a large improvement will be gotten by statistical analysis and PC1D simulation. | JIA HeShun LUO Lei JIANG YanSen XU ZhenHua REN XianKun ZHANG ChunYan | 2014 | Science China(Technological Sciences)2014,57,5: | 0 |
| 18 | Differentiation of Wheat Diseases and Pests Based on Hyperspectral Imaging Technology with a Few Specific Bands显示文摘Hyperspectral imaging technique is known as a promising non-destructive way for detecting plants diseases and pests.In most previous studies,the utilization of the whole spectrum or a large number of bands as well as the complexity of model structure severely hampers the application of the technique in practice.If a detection system can be established with a few bands and a relatively simple logic,it would be of great significance for application.This study established a method for identifying and discriminating three commonly occurring diseases and pests of wheat,i.e.,powdery mildew,yellow rust and aphid with a few specific bands.Through a comprehensive spectral analysis,only three bands at 570,680 and 750 nm were selected.A novel vegetation index namely Ratio Triangular Vegetation Index(RTVI)was developed for detecting anomalous areas on leaves.Then,the Support Vector Machine(SVM)method was applied to construct the discrimination model based on the spectral ratio analysis.The validating results suggested that the proposed method with only three spectral bands achieved a promising accuracy with the Overall Accuracy(OA)of 83%.With three bands from the hyperspectral imaging data,the three wheat diseases and pests were successfully detected and discriminated.A stepwise strategy including background removal,damage lesions recognition and stresses discrimination was proposed.The present work can provide a basis for the design of low cost and smart instruments for disease and pest detection. | Lin Yuan Jingcheng Zhang Quan Deng Yingying Dong Haolin Wang Xiankun Du | 2023 | Phyton-International Journal of Experimental Botany2023,92,2: | 0 |
| 19 | Study on Optimal Dispatching Model for Multilake-Reservoir System of Kaidu-Kongque River and Tarim River^(12) | MEI Shengwei ZHANG Huaxiao and QI Wenhua(Department of mathsmatics,Xingjiang University, Urimqi, Xingjiang,830046,P.R.China)HAN Xiankun LU Xinsheng(Administration of Bainguolen water resource,Kurle,Xingjiang,830000,P.R.China) | 1994 | Systems Science and Systems Engineering1994,4,4: | 0 |
| 20 | Microscopic pump-probe optical technique to characterize the defect of monolayer transition metal dichalcogenides显示文摘Monolayer transition metal dichalcogenides(TMDs)are ideal materials for atomically thin,flexible optoelec.tronic and catalytic devices.However,their optoelectrical performance such as quantum yield and carrier mobility often shows below theoretical expectations due to the existence of defects.For monolayer TMD-based devices,finding a low-cost,time-efficient, and nondestructive technique to visualize the change of defect distribution in the space domain and the defect-induced change of the carrier's lifetime is vital for optimizing their optoelectronic properties.Here, we propose a microscopic pump-probe technique to map the defect distribution of monolayer TMDs.It is found that there is a linear relationship between transient differential reflection intensity and defect density,suggesting that this technique not only realizes the visualization of the defect distribution but also achieves the quantitative estimation of defect density.Moreover,the carrier lifetime at each point can also be obtained by the technique. The technique used here provides a new route to characterize the defect of monolayer TMDs on the micro-zone, which will hopefiilly guide the fabrication of high-quality two-dimensional (2D) materials and the promotion of optoelectrical performance. | Ying Yu Xiankun Zhang Zhangkai Zhou Zheng Zhang Yanjun Bao Haofei Xu Limin Lin Yue Zhang Xuehua Wang | 2019 | Photonics Research2019,7,7: | 0 |