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| 1 | Synthesis of condensed polynuclear aromatic resin from furfural extract oil of reduced-pressure route Ⅱ显示文摘As an industrial byproduct of oil refining,furfural extract oil from reduced-pressure route Ⅱ with high aromatic content was used to prepare heat-resistant condensed polynuclear aromatic(COPNA) resin for the first time.The basic properties of furfural extract oil and the resultant COPNA resin were characterized by infrared spectroscopy(FT-IR),nuclear magnetic resonance spectroscopy(1H-NMR),thermogravimetric analysis(TGA) and elemental analysis(EA).The result showed that heat treated furfural extract oil was successfully used for the synthesis of heat-resistant COPNA resin.The average structural parameters of raw materials and prepared resin were calculated by the improved Brown-Ladner method,and the averaged molecular structure of the resin was obtained.The reaction mechanism for the synthesis of COPNA resin was suggested as an acid-catalyzed positive ion type polymerization. | Wu Mingbo Jiang Wei Wang Yuwei Li Shibin Zheng Jingtang | 2013 | Petroleum Science2013，10，4： | 10 |
| 2 | Synthesis and Characterization of Condensed Polynuclear Aromatic Resin Derived from Ethylene Tar显示文摘As a kind of low-cost and readily available industrial byproduct, ethylene tar (ET) was for the first time utilized for the preparation of heat-resistant condensed polynuclear aromatic resin (COPNAR). The basic properties of ET and the resulted COPNAR were characterized by FT-IR, 1H-NMR, TGA and elemental analysis. The test results showed that ET with high aromatic content (>50%) was suitable for the synthesis of COPNAR with superior heat resistance. The average molecular structure of ET was obtained by means of the improved Brown-Ladner method, and the reaction mechanism was considered as an acid-catalyzed positive ion-typed polymerization. Our findings have provided a new route to develop ET into technology-added heat-resistant resins. | Wu Mingbo Shi Yangyang Li Shibin Wang Yuwei Tan Minghui Wang Ding Zheng Jingtang Tsubaki Noritatsu | 2012 | China Petroleum Processing & Petrochemical Technology2012，14，4： | 7 |
| 3 | Improvements of heat resistance and adhesive property of condensed poly-nuclear aromatic resin via epoxy resin modification显示文摘A bisphenol epoxy resin was used as modifier to increase the heat resistance of condensed poly-nuclear aromatic(COPNA) resin. The basic properties of COPNA resin and modified resin were characterized by Fourier transform infrared spectroscopy(FT-IR), nuclear magnetic resonance spectroscopy(1H-NMR), vapor pressure osmometry(VPO) and elemental analysis(EA). Average structural parameters of resins were calculated by the improved Brown-Ladner method, and heat resistance of resins was tested by thermogravimetric analysis(TGA). The chemical structure, mechanical properties and heat resistivity of the resin/graphite composites prepared with different resins were compared. The results show that the adhesive property and heat resistance of COPNA resin can be remarkably improved by addition of 5 wt.% epoxy resin. The reason is that the reactions between epoxy groups of epoxy resin and hydroxyl groups of COPNA resin improve the heat resistance and adhesive property of COPNA resin. Electric motor brushes with good mechanical properties and low electrical resistivity were successfully prepared by using the modified resin as binder. | Wu Mingbo Wang Yuwei Jiang Wei Li Shibin Sun Qiqian Zheng Jingtang Qiu Jieshan | 2014 | Petroleum Science2014，11，4： | 5 |
| 4 | The regulatory network behind maize seed germination: Effects of temperature, water, phytohormones, and nutrients显示文摘Seed germination is the process by which an organism grows from a seed. It requires suitable conditions and environmental factors. Maize is one of the most important crops worldwide. Germination influences both final maize yield and quality. Seed germination is regulated by a complex gene network. It is also influenced by endogenous(phytohormones and nutrients) and exogenous(temperature and water)inputs, involving molecular networks only partly identified to date. This review describes current understanding of the influence of temperature, water, phytohormones, and nutrients in regulating maize seed germination, and indicates knowledge gaps that should be addressed. | Xiaofei Xue Shangyi Du Fuchao Jiao Menghan Xi Aiguo Wang Haicheng Xu Qiqing Jiao Xin Zhang Hao Jiang Jingtang Chen Ming Wang | 2021 | The Crop Journal2021，9，4： | 2 |
| 5 | Characterization of pore size distributions on carbonaceous adsorbents by DFT显示文摘 | Zhenyu Ryu Jingtang Zheng Maozhang Wang Bijiang Zhang | 1999 | Carbon1999，，8： | 1 |
| 6 | Characterization of pore size distributions on carbonaceous adsorbents by DFT显示文摘 | Ryu Zhenyu Zheng Jingtang Wang Maozhang Zhang Bijiang | 1999 | Carbon1999，37，： | 1 |
| 7 | On a Mathematical Model for Low-Rate Shrew DDoS 显示文摘 | Jingtang Luo Xiaolong Yang Jin Wang | 2014 | IEEE Transactions on Information Forensics and Security2014，9，7： | 1 |
| 8 | Porous structure of PAN-based activated carbon fibers显示文摘 | Zhenyu Ryu Jingtang Zheng Maozhang Wang | 1998 | Carbon1998，36，4： | 1 |
| 9 | Characterization of pore size distributions on carbonaceous adsorbents by DFT显示文摘 | Zhenyu Ryu Jingtang Zheng Maozhang Wang Bijiang Zhang | 1999 | Carbon1999，，8： | 1 |
| 10 | Porousstructure of PAN-based activated carbon fibers 显示文摘 | Ryu Zhenyu Zheng Jingtang Wang Maozhang | 1998 | Carbon1998，36，4： | 1 |
| 11 | Nitrogen adsorption studies of PAN-based activated carbon fibers prepared by different activation methods 显示文摘 | Pyu Zhenyu Zheng Jingtang Wang Maozhang | 2000 | Colloid and Interface2000，230，： | 1 |
| 12 | Porous structure of pan-based activated carbon fibers显示文摘 | Zhenyu Ryu Jingtang Zheng and Maozhang Wang | 1998 | Carbon1998，36，4： | 1 |
| 13 | Microstructure and chemical analysis of PAN-based activated carbon fibers prepared by different activation methods显示文摘 | Zhenyu Ryu Haiqin Rong Jingtang Zheng Maozhang Wang Bijiang Zhang | 2002 | Carbon2002，，7： | 1 |
| 14 | Porous structure of PAN-based activated carbon fibers 显示文摘 | Ryu Zhenyu Zheng Jingtang Wang Maozhang | 1998 | Carbon1998，36，4： | 1 |
| 15 | Interfacial Characteristics of Nanocrystalline FeMoSiB Alloys显示文摘By using X-ray diffraction (XRD), transmission electronic microscopy (TEM) and transmissionMssbauer spectroseopy (TMES), the formation, structure and properties including microhardnessand electrical resistivity of nanocrystalline FeMoSiB alloys have been investigated. By annealing theas-quenched FeMoSiB sample at 833-1023K for 1 h, nanocrystalline materials with grain sizes of15 to 200 nm were obtained. Mssbauer spectroscopy results reveal a quasi-continuous distributionfeature of P(H)-H curves for 15 nm-and 20 nm-grained samples. Also, it was found that resistivityand microhardness of nanocrystalline Fe-Mo-Si-B alloys exhibit strong grain size effect. | Xuedong LIU Jingtang WANG State Key Lab.of RSA,Institute of Metal Research,Academia Sinica,Shenyang,110015,ChinaJie ZHU Jian JIANG International Centre for Materials Physics,Institute of Metal Research,Academia Sinica,Shenyang,110015,China | 1993 | Journal of Materials Science & Technology1993，9，4： | 1 |
| 16 | VARIATIONAL CALCULATION OF THERMODYNAMIC PROPERTIES OF SUPERCOOLED LIQUID METALS显示文摘By means of Gibbs-Bogoliubov (GB) thermodynamic variational calculation,thethermodynamic properties of the supercooled liquid metals,such as the 3rd family elementsAl,Ga and Tl and transition metal Ti were calculated using the hard-sphere (HS) system asreference.The values of mean atomic volume,Helmholtz free energy,internal energy andentropy as well as specific heat at constant volume,isothermal bulk modulus,thermal expan-sion coefficient and specfic heat under constant pressure were evaluated.The glass transitiontemperature,T_g,is easily obtained from the C_p-T plot.The glass forming ability for metalcan be predicted from T_g/T_m,which is in agreement with the experimental results. | SHEN Tao WANG Jingtang Institute of Metal Research,Academia Sinica National Laboratory of Rapidly Solidified Non-equilibrium Alloys,Shenyang,China | 1990 | Acta Metallurgica Sinica(English Letters)1990，3，12： | 0 |
| 17 | TEMPERATURE DEPENDENCE UPON VISCOSITY OF Ni-P ALLOY ON AMORPHOUS FORMATION显示文摘The viscous flow of amorphous alloys near T_gis closely related to the viscosity of liquid alloys.On the basis of the measured surface tension and density for Ni-P binary alloys,the correla-tion between the viscosity of the melt and viscous flow process of the amorphous alloy is inves-tigated.The relationship between viscosity and temperature for Ni-P alloys going from liquidto amorphous solid may be described by the following formula: | WANG Jingtang PANG Dexing DING Bingzhe BIAN Maoshu LI Shuling | 1989 | Acta Metallurgica Sinica(English Letters)1989，2，8： | 0 |
| 18 | SIMS Studies of Tracer Diffusion of Al in Thin Film Nanocrystalline Cu显示文摘Diffusion of Al in thin film nanocrystalline Cu(18 nm)has been investigated by means of second ionmass spectroscopy(SIMS).In the experimental temperature ranges from 421 to 773 K,there seem-ingly exists two diffusion mechanisms.The impurity elements O and C are supposed to accumulateto the grain boundaries and inhibit the fast grain boundary diffusion. | Honggang JIANG Jingtang WANG Bingzhe DING Qihong SONG State Key Lab.of RSA,Institute of Metal Research,Academia Sinica,Shenyang,110015,China | 1993 | Journal of Materials Science & Technology1993，9，4： | 0 |
| 19 | Variation of Defective Structure During the Grain Growth of Nanocrystallites显示文摘In this paper,we report the variation of defective structure of nanocrystalline Fe-Mo-Si-B alloys with the increase of grain size.Results suggest that for the average grain size D=55 nm,microvoid-sized defects exhibit maximum volume and minimum concentration. | LIU Xuedong ZHU Jie WANG Jingtang | 1993 | Chinese Physics Letters1993，10，4： | 0 |
| 20 | Study on Anomalous Nuclear Fusion Reaction by Using HV Pulse Discharge显示文摘A study on anomalous nuclear fusion reaction by using lOkV pulsed high voltage discharge in deuterium was completed,During high voltage(HV)pulses no neutron signal was detected,but two peaks of gamma rays were detected.The energies of two gamma rays are at 425 and 870keV,respectively.It might be explained as^(108)Pd^(*)and^(56)Fe^(*) excited by high energy charged particles de-exciting radiations.Neither neutron signal nor gamma signal was detected in the intervals between the pulses. | HE Jingtang ZHANG Yingping REN Guoxiao ZHU Guoyi QIAN Zhongmin DONG Xiaoli DAI Changjiang HU Saixiong WANG Long YI Sunsheng | 1993 | Chinese Physics Letters1993，10，11： | 0 |
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