Jieqiong Hu

Kunming Institute of Precious Metals

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Yongtai Chen

First Affiliated Hospital of Fujian Medical University

Ming Xie

Shandong University

Jiheng Fang

Kunming Institute of Precious Metals

Ming Xie

Kunming Institute of Precious Metals

Wang Saibei

Kunming Institute of Precious Metals

Manmen Liu

Kunming Institute of Precious Metals

Youcai Yang

Kunming Institute of Precious Metals

Yong Du

Johns Hopkins University

Shuhong Liu

Tsinghua University

Youcai Yang

Kunming Institute of Precious Metals

Cooperative Institutions

Kunming Institute of Precious Metals

Central South University

Chinese Academy of Sciences

Kunming University of Science and Technology

Anhui University of Science and Technology

Wuhan University

University of Chinese Academy of Sciences

State Key Laboratory of Powder Metallurgy

Shandong University

Shenyang University of Technology

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The Impact of Entrepreneurial Experience on Entrepreneurial Opportunity Identification—An Analysis of the Case of Agel Ecommerce Ltd

DEStech Transactions on Social Science Education and Human Science (2018)

Qiang-nan Zhan Jieqiong Hu Limin Su

Entrepreneurial opportunity recognition is the starting stage of entrepreneurial process, is an important source of entrepreneurial ability and competitive advantage, opportunity recognition affects the entire business process, even the success or failure of entrepreneurial activities is very important. This paper takes Hu Jun founder of Agel Ecommerce Ltdâ€™s entrepreneurial case as the research object, and through analysis how to identify and select entrepreneurial opportunity and its effects in the entrepreneurial process, then summarized to get the conclusion that entrepreneurial learning, entrepreneurial self-efficacy, entrepreneurial experience and another factors have positive effect on the opportunity identification, selection and execution of entrepreneurial opportunity, and they also could provide a reference for entrepreneurs of undergraduate to better carry out some entrepreneurial activities.

Identification

Research Object

Business opportunity

10.12783/dtssehs/amse2018/24817

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Optimization and Calculation of Pt-Sn Phase Diagram

Jieqiong Hu Ming Xie Shaoxia Sun Jiming Zhang Yang Youcai

Optimization and calculation of the phase diagram of Pt-Sn binary system were presented by Pandat software.The Gibbs free energy of the pure component (Au and Pt) was described by the expression of the SGTE (Science Group Thermodata Europe) database, Using the solid solution phase thermodynamic model to describe the liquid and solid solution phases.Using the PanOptimizer optimization platform and the latest experimental data，the parameters for each phase of the Pt-Sn binary system were optimized.Both calculated phase diagram and thermodynamic properties agree well with most of relative experimental data.

10.2991/nceece-15.2016.116

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Citations (1)

The electronic, elastic and structural properties of Pd–Zr intermetallic

Computational Materials Science (2011)

Jieqiong Hu Ming Xie Yong Pan Youcai Yang Manmen Liu

Pseudopotential

Brittleness

Shear modulus

Structural Stability

10.1016/j.commatsci.2011.07.049

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Citations (24)

Antibacterial and physical properties of EGCG-containing glass ionomer cements

Journal of Dentistry (2013)

Jieqiong Hu Xijin Du Cui Huang Dongjie Fu Xiaobai Ouyang

Glass ionomer cement

10.1016/j.jdent.2013.07.014

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Citations (85)

Investigation on Fusion Bridge of Au Electrical Contacts Material under Different Voltage

IOP Conference Series Materials Science and Engineering (2019)

Jiheng Fang Di Wu Jinghong Chen Xi Liu Ming Xie

The fusion bridge phenomenon caused by Au contacts was investigated with the high speed vedio-electrical contact testing system built by ourselves. The microscopic topography of Au contacts surface was observed after the survey of fusion bridge size. The results in this paper revealed some novel phenomena and rules. The size of fusion bridges which generated during electrical contact process of Au contacts is micron scale when the load is DC 10 A (6 V to 15 V); The shape of fusion bridges has three types which are the cylindrical, dumbbell and frustum; With the increase of the voltage, the size of the diameter exhibit the characteristic of S type, and the change in length also has such a rule; the molten bridge behaviour can erode the Au contact surface and present the erosion surface with the characteristics of the molten pool, spray particles and convex hill, the droplet spray is the main form of the loss of Au contact material in the process of electrical contact.

Electrical contacts

Frustum

Bridge (graph theory)

Contact area

10.1088/1757-899x/484/1/012025

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Citations (2)

Diffusivity and atomic mobility in fcc Cu–Mn–Si alloys: measurements and modeling by CALTPP program

Journal of Materials Science (2022)

Huixin Liu Yuling Liu Changfa Du Yong Du Zhoushun Zheng

Microelectronics

Atomic diffusion

10.1007/s10853-022-06948-9

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Citations (5)

Machine learning accelerates the materials discovery

Materials Today Communications (2022)

Jiheng Fang Ming Xie Xingqun He Jiming Zhang Jieqiong Hu

Relevance

Identification

10.1016/j.mtcomm.2022.104900

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Citations (64)

Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different Currents

Metals (2023)

Wang Saibei Song Wang Yong Sun Song Chen Aikun Li

In order to explore the influence of rare earth element Y on the electrical contact properties of Pt–Ir alloys, Pt–10Ir–Y and Pt–25Ir–Y were prepared via arc melting combined with thermal processing, and electrical contact experiments were carried out with a DC voltage of 24 V and current ranging from 5 A to 25 A. Comparative analyses were conducted to analyze the changes in the break arc duration and arc energy, as well as the contact resistance before and after the addition of Y. The arc erosion surface morphology was characterized, and the transfer behavior of the alloys was discussed. The results show that at 5 A and 25 A, adding Y improves the stability of the arc duration of the Pt–Ir alloy, but it increases the overall arcing energy and decreases the stability. The contact resistance of the Pt–Ir alloy shows a clear partitioning phenomenon; the partitioning phenomenon disappears after the addition of Y, and the contact resistance fluctuates around the average value. The material transfer direction of the Pt–Ir alloy is affected by the current change, while the material transfer direction of the Pt–Ir–Y alloy is always from cathode to anode. The research results provide a reference for the performance optimization of Pt–Ir alloys.

Electric arc

Contact resistance

Electrical contacts

10.3390/met13091589

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Citations (1)

Sol-gel synthesis and characterization of foamed Ni3Pt alloys

Materials Letters (2023)

Chao Ma Jieqiong Hu Ming Xie Yongtai Cheng Jiheng Fang

This study focuses on the preparation of Ni3Pt nanoporous alloy foams through the annealing of a colloid composed of Ni(NO3)2, H2PtCl6, and starch under an argon gas atmosphere. Field-emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD) were employed to analyze the chemical composition, structure, and crystallographic properties of the obtained products. The product exhibits a three-dimensional foam structure comprising open pores with an average pore size of 300 nm. Additionally, it possesses structural supports with a thickness of approximately 140 nm within the open-pore configuration. XRD analysis confirms that the obtained product exhibits a face-centered cubic phase, indicating that it is a Ni3Pt alloy. This result is further supported by reductions insurface atomic ratio and Pt binding energy observed in the XPS analysis. The resulting open-cell Ni3Pt alloy foam exhibits a homogeneous and well-defined three-dimensional structure, offering a high specific surface area. These characteristics reveal the excellent potential of the Ni3Pt alloy foam for application in battery and electrode materials.

Nanoporous

10.1016/j.matlet.2023.135338

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Citations (1)

Thermodynamic Calculation Study on Solid Solutions’ Stabilities of Au-Pd-M (M=Mo, Y, Zr)

Advances in engineering research/Advances in Engineering Research (2015)

Wang Saibei Ming Xie Jiming Zhang Song Wang Jieqiong Hu

According to the first-principle based on density functional theory, the stability of the solid solutions of Au-Pd-M (M=Mo,Y,Zr) alloy systems were calculated.The results show that, adding the same percentage content, 1% Mo doped in Au-Pd solid solution is the most stable phase structure.When doped with Y and Zr, they are likely to react with Au-Pd to form the corresponding intermetallic compounds.

10.2991/mebe-15.2015.90

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