Wei Guo

Northwestern Polytechnical University

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Chang Yu

Dalian University

Bao Yu Xia

Wuhan National Laboratory for Optoelectronics

Jieshan Qiu

Beijing University of Chemical Technology

Shaofeng Li

Technical University of Denmark

Huawei Huang

Yangtze River Delta Physics Research Center (China)

Hao Wu

Huazhong University of Science and Technology

Qiuyu Zhang

Northwestern Polytechnical University

Jinhe Yu

Dalian University of Technology

Changtai Zhao

General Research Institute for Nonferrous Metals (China)

Xiaotong Han

Hunan Provincial People's Hospital

Cooperative Institutions

Chinese Academy of Sciences

130

Huazhong University of Science and Technology

127

Dalian University of Technology

University of Chinese Academy of Sciences

Dalian University

Northwestern Polytechnical University

Xi'an Jiaotong University

Wuhan National Laboratory for Optoelectronics

University of Science and Technology of China

Fudan University

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Measurement and Analysis on Failure Height of Overburden Strata of mechanized sublevel caving in Shallow Region of Baodian Coal Mine

Fuchen Li Wenquan Zhang Wei Guo Zongsheng Wang Yunjiang Li

Baodian mine is gradually mining shallow area with thin bedrock, and failure height of overburden strata in shallow area has a certain difference from one of thick bedrock area.According to the measurement of "Two zones" in 5304-1top slice face and 5304 mechanized sublevel caving face, the paper confirms the heights of caving zone and water flowing fractured zone.And then the heights are compared with forecasts of empirical formula.In the end development characteristics of strata damage is concluded.

Overburden

10.2991/mining-14.2014.19

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Citations (0)

Great improvement of catalytic activity of oxide counter electrodes fabricated in N2 atmosphere for dye-sensitized solar cells

Chemical Communications (2012)

Mingxing Wu Xiao Lin Wei Guo Yudi Wang Lingling Chu

The dye-sensitized solar cells (DSCs) using SnO2 and Nb2O5 counter electrodes (CEs) prepared in N2 atmosphere yielded power conversion efficiencies (PCE) of 6.09% and 4.65%, much higher than the PCE values (1.84%, 0.97%) of the DSCs using the same SnO2 and Nb2O5 CEs prepared in air.

Auxiliary electrode

10.1039/c2cc37360b

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Citations (39)

Ultrafast construction of interfacial sites by wet chemical etching to enhance electrocatalytic oxygen evolution

Nano Energy (2019)

Xiaotong Han Yingying Niu Chang Yu Zhibin Liu Huawei Huang

Oxygen evolution

Isotropic etching

10.1016/j.nanoen.2019.104367

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Citations (70)

Preparation and Magnetic Properties of Nanoscale ε‐Fe₃N Particles.

ChemInform (2007)

Wei Huang Jianmin Wu Wei Guo Rong Li Liya Cui

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

10.1002/chin.200740021

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Research on the EM Modeling of Optimization of PCB Grounded Via

Applied Mechanics and Materials (2012)

Liang Gui Yang Cao Jia He Xiao Ping Gao Ke Chen

Grounded vias modeling is used to analyze the impact on the high speed PCB EMC and SI issues in three aspects, including theoretical analysis, simulator modeling and practical PCB test. In this paper, we discuss the full-wave complex scattering parameter model and full-wave model. Then the full-wave analysis model of the through holes for model validation and comparison are established, by using numerical simulation software HFSS and CST Microwave Studio. The initial test results on the practical PCB show that the analyzed method is reasonable and accurate. And optimized design parameters can ensure the continuity of the impedance of vias, and introduce lesser return loss and insertion loss. It is shown that the signal transmission performance is greatly improved with the grounded via added, which is helpful in specifying the manufacturing tolerance of via designs.

HFSS

Return loss

Electromagnetic simulation

10.4028/www.scientific.net/amm.195-196.1153

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Mechanical, Morphological and Thermally Behaviors of Natural Rubber/Aluminum Powder Composites

Key engineering materials (2012)

Hui Niu Zhi Yi Zhang Wei Guo Yi F. Xue Zhen Yao

Different content of aluminum powder was mixed into natural rubber. Aluminum powder was modified by different coupling agents via wet method, and the modified aluminum filler/NR composite was prepared. The mechanical properties, thermal conductivity and thermogravimetric analysis of the composites was investigated. The results showed that the best physical properties and thermal conductivity of composites were achieved with saline coupling agent Si-69, and Thermo decomposing temperature of 3%TM-38S matching composites improved evidently. SEM test indicated that boundary surface of aluminium fillers and rubber was obviously improved when aluminum powder was modified by coupling agent, which would result in preferable mechanical property. The result of Thermogravimetric analysis showed that after aluminum powder filler was modified by three coupling agents, thermo decomposing temperature and hot lost weight of composites rose obviously. With the increase of Al powder content the thermal conductivity improved greatly, Thermal conductivity of Al/NR composites lay between 0.25 and 0.47 W·m -1 ·K -1 .

Thermogravimetric analysis

Filler (materials)

Aluminium powder

10.4028/www.scientific.net/kem.501.289

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Citations (1)

Fast tailoring of gold nanoflowers by an interface-modified reverse microdroplet strategy

Colloids and Surfaces A Physicochemical and Engineering Aspects (2022)

Mingming Sun Wei Guo Jiesheng Tian Xin Chen Qiuyu Zhang

Nanomaterials

10.1016/j.colsurfa.2022.128590

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Citations (4)

Maximizing the utility of single atom electrocatalysts on a 3D graphene nanomesh

Journal of Materials Chemistry A (2019)

Kai Chi Zhongxin Chen Fei Xiao Wei Guo Wei Xi

Vertically aligned N-doped graphene nanomesh arrays (VNGNMAs) with a high density of in-plane surface holes and out-of-plane interconnected, vertically aligned structures as a scaffold can facilitate the diffusion of reactants and maximize the utility of single atoms in the liquid phase.

Nanomesh

Single phase

10.1039/c9ta00942f

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Citations (38)

Healable Strain Sensor Based on Tough and Eco-Friendly Biomimetic Supramolecular Waterborne Polyurethane

ACS Applied Materials & Interfaces (2022)

Zongxu Liu Wei Guo Wenyan Wang Zijian Guo Yao Lai-feng

Stretchable sensors are essential for flexible electronics, which can be made with polymer elastomers as the matrix. The main challenge in producing practical devices is to obtain polymers with mechanical stability, eco-friendliness, and self-healing properties. Herein, we introduce urea bonds and 2-ureido-4[1H]-pyrimidinone (UPy) to synthesize tailored waterborne polyurethanes (WPU-UPy-x) with a hierarchical hydrogen bond (H-bond). Accordingly, sound tensile performance (strength: 53.33 MPa, toughness: 128.97 MJ m-3), satisfying deformation recovery, and good self-healing capability of the WPU-UPy-x film are demonstrated. With atomic force microscope characterization, we find that UPy groups contribute to the highly improved microphase separation of WPU-UPy-x, responsible for good mechanical properties. As a proof of concept, a strain sensor is successfully configured, thanks to the good interfacial interactions between the polyurethane matrix and the Ti3C2Tx MXene conductive filler, which features sensitive and stable performance for monitoring diverse human and mechanical motions. Intriguingly, this sensor is capable of self-healing after cutting and displays well-retained sensitivity to detect the stretched signal. The as-proposed design concept for healable and sensitive strain sensors can shed light on future wearable electronics.

Stretchable electronics

Piezoresistive effect

Smart material

Flexible Electronics

10.1021/acsami.1c21987

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Citations (53)

Preparation and magnetic properties of nanoscale ɛ-Fe3N particles

Journal of Alloys and Compounds (2007)

Wei Huang Jianmin Wu Wei Guo Rong Li Liya Cui

Saturation (graph theory)

Particle (ecology)

10.1016/j.jallcom.2007.01.151

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Citations (34)