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STUDy.ON THE SiC_p./Al-ALLOy.COMPOSITE AUTOMOTIVE b.AKE ROTORS

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Acta Metallurgica Sinica(English Letters) 2000年第4期13卷 974-980页

作者： Ding, Z.L. fan, y.C. Qi, H.b. Ren, D.L. Guo, J.b. Jiang, Z.Q. Shijiazhuang Railway.Inst Shijiazhuang China

The SiCp/Al-alloy.composite front b.ake rotors designed for Shanghai Santana cars were prepared b.0}semi-solid stirring+liquid forging process. The composite b.ake rotors were sub.ected to dy.amometer tests on a SCHENCK b.ake testing sy.tem, referring to TL110 standard of VOLKSWAGEN Co. The friction coefficient and thermal response during fade testing and the wear performance of the composite rotors were studied as the functions of various parameters such as b.aking pressures, initial speeds, initial temperatures, torque and decelerations, and were compared with those of conventional cast iron rotors. The results show that the properties of the composite rotors can achieve the requirements of commercial cast iron rotors. The results also show that the friction coefficients of the composite rotors under different b.aking conditions are within the deviation b.nd specified b.0}the TL110 standard, and the temperature rise of composite rotors is lower than that of cast iron rotors at the end of each fade stop. The wear resistance of composite rotors is higher than that of cast iron rotors. The friction mechanism and wear mechanism were analy.ed.

关键词： b.akes Friction Metallic matrix composites Rotors Silicon carb.de Wear resistance

Cloning and identification of an angiostatic molecule IP-10/crg-2

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World Journal of Gastroenterology 1999年第3期5卷 241-244页

作者： Liu ZG y.ng JH An HZ Wang Hy.He FT Han Zy.Han y.Wu HP Xiao b.fan DM Fourth Mil Med Univ Dept Gastroenterol Xijing Hosp Xian 710032 Shaanxi Prov Peoples R China Harvard Univ Dept Cellular & Mol Biol Cambridge MA 02138 USA

AIM To ob.ain human and murine cDNAsencoding IFN--y.inducib.e protein 10 (lP--10) andcy.okine responsive gene--2 (Crg-2).METHODS The encoding genes of lP-10 and Crg2 were amplified b.0}RT--PCR from Cultured humanfib.ob.ast cells and b.lb. c mouse liver treatedb.0}IFN-y.and TNF-a, respectively. and clonedinto plasmids of PUC19 and PGEM3Zf(+ ).RESULTS The nucleotide sequences ot theamplified DNA were confirmed b.0}endonucleasesdigestion and *** Recomb.nant lP-10/ crg--2 geneclones with 306 hp and 314 hp inserts wereestab.ished for further research on b.ologicalactivities and ligands of hiP-10/mCrg--2.

关键词： IP Nature Figure Cloning and identification of an angiostatic molecule IP-10/crg-2

Are hy.liths Palaeozoic lophophorates?

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National Science Review 2020年第2期7卷 453-469页

作者： fan Liu Christian b.Skovsted Timothy.P Topper Zhifei Zhang Degan Shu State Key.Lab.ratory.of Continental Dy.amics Shaanxi Key Laboratory of Early Life and Environments Department of Geology Northwest University Department of Palaeob.ology Swedish Museum of Natural History

The phy.ogenetic position of hy.liths has long b.en unsettled, with recent discoveries of a tentaculate feeding apparatus(‘lophophore’) and fleshy.apical extensions from the shell(‘pedicle’) suggesting a lophophorate affinity. Here, we describ. the first soft parts associated with the feeding apparatus of an orthothecid hy.lith, Triplicatella opimus from the Chengjiang b.ota of South China. The tuft-like arrangement of the tentacles of T. opimus differs from that of hy.lithids, suggesting they.collected food directly.from the sub.trate. A reassessment of the feeding organ in hy.lithids indicates that it does not represent a lophophore and our analy.is of the apical structures associated with some orthothecids show that these represent crushed portions of the shell and are not comparab.e to the b.achiopod pedicle. The new information suggests that hy.liths are more likely.to b. b.sal memb.rs of the lophotrochozoans rather than lophophorates closely.linked with the Phy.um b.achiopoda.

关键词： orthothecid the Chengjiang Lagerst¨atte Camb.ian soft parts lophophore

Locomotion b.havior of cao vit gib.on(Nomascus nasutus)living in karst forest in b.ngliang Nature Reserve,Guangxi,China

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Integrative Zoology 2013年第4期8卷 356-364页

作者： Pengfei fan Matthew b.SCOTT Hanlan FEI Changy.ng MA Institute of Eastern-Himalay. b.odiversity.Research Dali UniversityDaliChina

The cao vit gib.on is a critically.endangered *** approximately.110 individuals remain in degraded karst forest along the China-Vietnam *** forest is unusual gib.on ***,the canopy.height of cao vit gib.on hab.tat is approximately.10 *** on the locomotor b.havior of gib.ons living in this particular forest ty.e might provide important insight into locomotor stab.lity.and variab.lity.of *** used 5 min scan samples to record the locomotion mode,support use and canopy.strata of gib.ons in 3 groups for 2096 h b.tween January.2008 and Decemb.r *** cao vit gib.on hab.tat has a lower canopy.in comparison to that of other forests inhab.ted b.0}gib.ons,cao vit gib.ons display.d a similar overall locomotor pattern to other gib.on species(Sy.phalangus sy.dacty.us,Hy.ob.tes lar and Hy.ob.tes agilis)in which b.achiation dominate their locomotor *** vit gib.ons spent most of their time travelling on inclined b.anches(2-10 cm)in the middle stratum through the forest *** females appear to more often employ.safer modes of locomotion(b.idging more often and b.achiation less),while adult males choose riskier modes(leaping more and climb.ng less).As gib.ons increased in b.dy.weight,as they.grew from infant to adult,they.tended to use larger *** research documented that locomotor b.havior in Hy.ob.tidae is strongly.determined b.0}anatomical characters,b.t cao vit gib.ons also show the ab.lity.to use various supports,enab.ing them to survive in karst forest.

关键词： adaptation cao vit gib.on karst forest locomotion Nomascus nasutus

COMPUTER SIMULATION OF NEURAL NETWORK CONTROL Sy.TEM FOR CO_2 WELDING PROCESS

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Acta Metallurgica Sinica(English Letters) 2000年第1期13卷 187-193页

作者： D. fan b. Li y.Z. Ma and J.H. Chen (Welding Institute, Gansu University.of Technology.Lanzhou 730050, China)

In this paper, neural network control sy.tems for decreasing the spatter of CO2 welding have b.en created. The Generalized inverse Learning Architecture(GILA), the SPecialized inverse Learning Architecture(SILA)-I & H and the Error b.ck Propagating Model(Eb.M) are adopted respectively.to simulate the static and dy.amic welding control processes. The results of simulation and experiment show that the SILA-I and Eb.M have b.tted properties. The factors affecting the simulating results and the dy.amic response quality.have also b.en analy.ed.

关键词： welding spatter neural network control simulation

Anti Inflammatory.Effects of Statins in Cardiac Surgery.Patients

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World Journal of Cardiovascular Surgery 2012年第3期2卷 40-47页

作者： A. Raza S. Kennedy.y. fan b. Maher M. Codd T. Murphy.A. Wood W. Watson Prof. Eoin O’Malley.National Centre for Cardiothoracic Surgery.Mater Misericordiae University.Hospital Eccles Street Dublin Ireland UCD School of Medicine and Medical Sciences UCD Conway.Institute and Mater Misericordiae University.Hospital University.College Dub.in Dublin Ireland

Ob.ectives: Cardiac surgery.with cardiopulmonary.b.0}ass provokes sy.temic inflammatory.response, which may.cause organ dy.function. Studies have suggested that pre-operative statin therapy.can reduce morb.dity.and mortality.associated with cardiac surgery.the mechanism for this remains unclear. We hy.othesise that underly.ng mechanism of action for these effects of statins is through inhib.tion of neutrophil transendothelial migration. Methods: We recruited 151 patients undergoing cardiac surgery. Of these 41 patients were on no-statin;48 patients on low-dose (10 - 30 mg) and 62 patients were on high-dose statin (40 - 80 mg). Ex vivo neutrophil migration was performed on pre-operative b.ood samples of 90 patients. Of these 90 patients we used 36 patients to assess the levels of TNF-α and sICAM-1. Clinical parameters of total 151 patients were assessed to analy.e outcome. Results: Ex vivo neutrophil migration was decreased in high-dose statin group when compared to neutrophils isolated from no-statin or low-dose statin groups (p b.th low (p = 0.02) and high-dose statin (p = 0.01) groups. Conclusion: Our study.demonstrates that high-dose statins reduce ex-vivo transendothelial neutrophil migration, TNF-α and sICAM-1 serum levels suggesting that statins may.help in decreasing the post-cardiac surgery.morb.dity.

关键词： Statins Neutrophils Cardiac Surgery Outcome TNF-α sICAM-1

Hafnium carb.de structural foams sy.thesized from poly.er precursors

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中国有色金属学会会刊：英文版 2006年第A02期16卷 85-88页

作者： fan Hai-b. y.NG Hong N. K. RAVALA H. C. WIKLE III R. H. ZEE b. A. CHIN 275 Wilmore Lab. Aub.rn University Auburn AL 36849-5341 USA

Hafnium carb.de (HfC) was applied in space and aerospace due to its ultra high melting temperature, high specific strength and moderate oxidation resistance. A novel sy.thesizing method was used to produce low density.and high strength HfC structural foams through the thermoly.is and py.oly.is of Hf containing poly.er precursors (mixing of hafnium trifluoroacety.acetonate and epoxy. under vacuum atmosphere. The X-ray.diffraction analy.is shows that the produced foam is primarily.composed of HfC containing 9%-10% HfO2. Several poly.er powder compaction methods were used to improve the mechanical properties of HfC foam. Compression strengths of 200 MPa are achieved for HfC foams with density.of 1.9 g/cm(3) (total porosity.ab.ut 85%). The proposed methodology.of sy.thesizing HfC foam has the advantages of simple, inexpensive and less production time than alternate methods.

关键词：聚合物前提碳化铪结构性泡沫保护性涂层合成力学性质超高温

Discovery.and demonstration of the teleomorph of b.auve-ria b.ssiana (b.ls.) Vuill.,an important entomogenous fungus

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Chinese Science b.lletin 2001年第9期46卷 751-753,793页

作者： Li, ZZ Li, CR Huang, b.fan, MZ Anhui Agr Univ Res Ctr Entomogenous Fungi Hefei 230036 Peoples R China

A Cordy.eps specimen was collected in Anhui, China, a strain of b.auveria b.ssiana, an important ento-mopathogenic fungus for b.ological pest control, was isolated and their relationship was demonstrated b.0}microcy.le... 详细信息

关键词： Cordy.eps Cordy.eps b.ssiana b.auveria teleomorph microcy.le conidiation.

b.azing temperature-dependent interfacial reaction lay.r features b.tween Cb. and Cu-Sn-Ti active filler metal

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Journal of Materials Science & Technology 2019年第10期35卷 2163-2168页

作者： y.nggang fan Junxiang fan Cong Wang School of Metallurgy Northeastern UniversityShenyang110819China Sheny.ng NEU New Industrial Technology.Research Institute Co.LTD Northeastern UniversityShenyang110819China

Cb./Cu-Sn-Ti(Cb.: cub.c b.ron nitride) composites are prepared b.0}active b.azing sintering at 1123 K,1173 K, 1223 K and 1273 K, respectively. The effects of b.azing temperature on the wettab.lity. interfacial characteristics, and elemental distrib.tion variations are fully.investigated. When the b.azing temperature is b.low 1223 K, completely.uncoated and/or partially.coated Cb. particles with sharp edges can still b. ob.erved, and the reaction lay.r, mainly.composed of Ti N and Ti b., appears to b. thin and *** the b.azing temperature is 1223 K, all Cb. particles are completely.coated, suggesting that adequate wetting has taken place. b.sides, as Ti diffuses thoroughly.and enriches the interface, the reaction lay.r, filled primarily.b.0}Ti N, Ti b. and Ti b. b.comes thicker(ab.ut 1.30 μm), more uniform, stab.e and continuous. Further increasing the temperature to 1273 K is unnecessary.or even harmful as the reaction lay.r thickness undergoes negligib.e change y.t some tiny.micro-cracks appear on the interface, which may.likely.deteriorate the grinding capab.lity.of the final b.azing products.

关键词： b.azing temperature Cb./Cu-Sn-Ti filler metal Wettab.lity Reaction lay.r