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| 1 | Improvement of Mechanical Properties of Wood-Plastic Composite Floors Based on the Optimum Structural Design显示文摘A study is carried out on the structural design of wood-plastic composite floors. The geometric parameters of the cavities, the structure, and the means to optimize the performance of these light boards are investigated. Various structural parameters of the boards, such as size,shape, and the pattern of cavities are also studied. The optimal structure can be determined by calculation and analysis of the strength, stiffness, weight and cost of the material. A finite element model for the mechanical analysis of wood-plastic composite floors is established; and the results are used to verify the strength criteria under bending deformation, which is the most common loading condition of flooring board. | Yang Zhang Ping Xue Yun Ding Mingyin Jia Jianchen Cai Xiaoming Jin | 2016 | Acta Mechanica Solida Sinica2016，29，4： | 5 |
| 2 | Influence of crystallization history on PTC/NTC effects of PVDF/CB composites显示文摘 | Mingyin Zhang Wentao Jia | 1996 | Journal of Applied Polymer Science1996，，62： | 1 |
| 3 | Influence of Crystallization History on PTC/NTC Effects of PVDF/CB Composites显示文摘 | Mingyin Zhang Wen Tao Jia | 1996 | Journal of Applied Polymer Science1996，62，： | 1 |
| 4 | Phosphor-free microLEDs with ultrafast and broadband features for visible light communications显示文摘Modulation bandwidth and the emission region are essential features for the widespread use of visible light communications(VLC).This paper addresses the contradictory requirements to achieve broadband and proposes ultrafast,asymmetric pyramids grown on adjacent deep concave holes via lateral overgrowth.Multicolor emission with an emission region between 420 nm and 600 nm is obtained by controlling the growth rate at different positions on the same face,which also can provide multiple subcarrier frequency points for the employment of wavelength division multiplexing technology.The spontaneous emission rate distinction is narrowed by lowering the number of the crystal plane,ensuring a high modulation bandwidth over broadband.More importantly,the residual stress and dislocation density were minimized by employing a patterned substrate,and lateral overgrowth resulted in a further enhancement of the recombination rate.Finally,the total modulation bandwidth of multiple subcarriers of the asymmetric pyramids is beyond GHz.These ultrafast,multicolor microLEDs are viable for application in VLC systems and may also enable applications for intelligent lighting and display. | Zhenhuan Tian Qiang Li Xuzheng Wang Mingyin Zhang Xilin Su Ye Zhang Yufeng Li Feng Yun S.W.Ricky Lee | 2021 | Photonics Research2021，9，4： | 0 |
| 5 | Improvement of Mechanical,Dynamic-Mechanical and Thermal Properties for Noil Ramie Fiber Reinforced Polyethylene Composites显示文摘Noil discarded fibers from fiber production for textile industry have short length and are always considered less valuable.Here,noil ramie fibers/HDPE composite is prepared using twin-screw extruder and the dynamic mechanical and thermal properties are studied.The influence of ramie fiber and maleic anhydride-grafted polyolefin(MA-g-PO)on mechanical,dynamic mechanical and thermal properties is investigated.It is observed that the tensile,flexural and impact properties of the composites treated with MA-g-PO are all improved in comparison to the untreated composites.Dynamic mechanical properties of the composite with MA-g-PO show an increase in the storage modulus with a higherαrelaxation peak,together with the micromorphology analysis,indicating an improved interfacial bonding between fiber and matrix by the MA-g-PO addition.Furthermore,the change in TGA thermograms of composite caused by MA-g-PO exhibits that the addition of MA-g-PO is also helpful to increase the thermal stability of noil ramie fiber/HDPE composites. | Zhang Yang Xue Ping Ding Yun Jia Mingyin Shi Zhenwei Wang Hao | 2016 | Transactions of Nanjing University of Aeronautics and Astronautics2016，33，1： | 0 |
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