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| 1 | Photoluminescence and Electroluminescence of Poly p-Phenyl Phenol Prepared by Enzymatic Catalyzed Polymerization显示文摘The photoluminescence(PL)peak of poly p-phenyl phenol(PPP)is at about 370-420nm excited by the light at 350nm.The absorption band edges and photon emitting peaks of the polymer are found the conjugated lengths dependent on molecular weight of polymer.In the transient luminescence measurement the lifetime of PL decay is determined to be 2.0ns which is supposed an evidence of polaron excitation recombination.The electroluminescence is observed with aluminum/PPP/indium-tinoxide cell. | MA Yuguang TANG Jianguo MA Lin LIU Shiyong SHEN Jiacong | 1994 | Chinese Physics Letters1994，11，6： | 1 |
| 2 | Interfacial Characteristics and Mechanical Behavior of Hybrid Manufactured AlSi10Mg–Al6061 Bimetal via Selective Laser Melting and Forging显示文摘Hybrid manufacturing(HM)uses additive manufacturing(AM)techniques to prepare complex or fine structures on traditional processing parts,which can fully utilize the advantages of AM to form complex parts,and the high efficiency and low cost of conventional processing methods in manufacturing regular components.A bimetal material was produced by selective laser melting(SLM)of AlSi10Mg on the deformed Al6061 alloy substrate in this study.Firstly,the interface characteristics of the two alloys were studied.The results show that a metallurgical interface with a thickness of 100–200μm was formed as the result of the Marangoni convection during SLM preparation.In detail,the circular flow in the melt pool at the interface led to the dilution of alloying elements and the change of microstructure.Moreover,a suitable first-layer thickness can eff ectively suppress the hot cracks at the interfacial region.Based on the optimized results,the hybrid manufactured samples with diff erent SLM processed volume ratios(SLM-part)to the substrate were prepared to study the mechanical properties and the deformation behavior of hybrid parts.The results show that the volume ratio of the SLM-part to the substrate had an influence on the strength and the elasto-plastic behavior by aff ecting the distribution of plastic deformation. | Haoxiang Wang Xin Lin Nan Kang Zehao Qin Shuoqing Shi Jiacong Li Weidong Huang | 2022 | Acta Metallurgica Sinica(English Letters)2022，35，3： | 1 |
| 3 | Evaluating weapon system by analytical hierarchy process based on entropy weight显示文摘 | MENG DELIANG CHENG CAIHENG LIN JIACONG | 1994 | Fuzzy Sets and Systems1994，，62： | 1 |
| 4 | Application of the diagonal recurrent wavelet neural network to solar irradiation forecast assisted with fuzzy technique显示文摘 | Cao Jiacong Lin Xingchun | 2008 | Engineering Applications of Arti/icial Intelligence2008，21，8： | 1 |
| 5 | Effect of cycling heat treatment on the microstructure,phase,and compression behaviour of directed energy deposited Ti-Mo alloys显示文摘In this study,the effect of triple-cycling heat treatment on the microstructure,phase,and compression behaviour of directed energy deposited(DED)Ti-7Mo alloy was investigated with a focus on a non-equilibrium to equilibrium microstructure transition.As a result of thermal accumulation,in situ cycling,and rapid solidification,the as-deposited sample presents a continuous gradient microstructure withα-Ti in the top region andα+βin the bottom region.After the triple-cycling heat treatment,theα+βTi at the bottom region,which is non-equilibrium,changes to a state of equilibrium nearα-Ti.Meanwhile,the microstructure becomes more uniform throughout the entire sample.The morphology of theα-Ti phase changes from acicular to a short rode-like shape with increases in the number of dimensions.In terms of the mechanical properties,both the microhardness and compression properties were improved,particularly with respect to the fracture characteristics.The heat-treated sample possesses a much higher ductility than the brittle fractural behaviour.This work provides new insights into the microstructure and property optimisation and homogenisation of DED-processed Ti-based components with cycling heat treatment. | Nan Kang Kai Wu Jin Kang Jiacong Li Xin Lin Weidong Huang | 2021 | Light(Advanced Manufacturing)2021，2，2： | 0 |
| 6 | Isogeometric Analysis-Based Topological Optimization for Heterogeneous Parametric Porous Structures显示文摘Porous structures widely exist in nature and artifacts,which can be exploited to reduce structural weight and material usage or improve damage tolerance and energy absorption.In this study,the authors develop an approach to design optimized porous structures with Triply Periodic Minimal Surfaces(TPMSs)in the framework of isogeometric analysis(IGA)-based topological optimization.In the developed method,by controlling the density distribution,the designed porous structures can achieve the optimal mechanical performance without increasing the usage of materials.First,the implicit functions of the TPMSs are adopted to design several types of porous elements parametrically.Second,to reduce the cost of computation,the authors propose an equivalent method to forecast the elastic modulus of these porous elements with different densities.Subsequently,the relationships of different porous elements between the elastic modulus and the relative density are constructed.Third,the IGA-based porous topological optimization is developed to obtain an optimal density distribution,which solves a volume constrained compliance minimization problem based on IGA.Finally,an optimum heterogeneous porous structure is generated based on the optimized density distribution.Experimental results demonstrate the effectiveness and efficiency of the proposed method. | HU Chuanfeng HU Hui LIN Hongwei YAN Jiacong | 2023 | Journal of Systems Science & Complexity2023，36，1： | 0 |
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