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| 1 | 盐酸沃尼妙林的合成显示文摘截短侧耳素经苯磺酰化后经1-氨基-2-甲基丙-2-硫醇盐酸盐取代,得到[(2-氨基-1,1-二甲基乙基)硫基]乙酸(3aS,4R,5S,6S,8R,9R,9aR,10R)-6-乙烯基十氢-5-羟基-4,6,9,10-四甲基-1-氧代-3a,9-丙醇-3aH-环戊二烯并环辛烯-8-基酯(5)。另用D-缬氨酸和乙酰乙酸甲酯反应后,与氯甲酸异丁酯成酸酐,与5成酰胺后用盐酸脱保护,制得抗生素盐酸沃尼妙林,总收率约为64%(以截短侧耳素计)。 | 冯德鑫 李新乐 潘强 王峥 Michael H.CHEN | 2010 | 中国医药工业杂志2010，41，4： | 6 |
| 2 | Inside-Out 3D Reversible Ion-Triggered Shape-Morphing Hydrogels显示文摘Shape morphing is a critical aptitude for the survival of organisms and is determined by anisotropic tissue composition and directional orientation of micro-and nanostructures within cell walls,resulting in diferent swelling behaviors.Recent eforts have been dedicated to mimicking the behaviors that nature has perfected over billions of years.We present a robust strategy for preparing 3D periodically patterned single-component sodium alginate hydrogel sheets cross-linked with Ca^(2+)ions,which can reversibly deform and be retained into various desirable inside-out shapes as triggered by biocompatible ions(Na^(+)/Ca^(2+)).By changing the orientations of the patterned microchannels or triggering with Na^(+)/Ca^(2+)ions,various 3D twisting,tubular,and plantinspired architectures can be facilely programmed.Not only can the transformation recover their initial shapes reversibly,but also it can keep the designated shapes without continuous stimuli.Tese inside-out 3D reversible ion-triggered hydrogel transformations shall inspire more attractive applications in tissue engineering,biomedical devices,and sof robotics felds. | X.Du H.Cui Q.Zhao J.Wang H.Chen Y.Wang | 2019 | Research2019，，1： | 5 |
| 3 | HEALING OF HYDROGEN ATTACK CRACK IN AUSTENITE STAINLESS STEEL UNDER HEAT TREATMENT显示文摘The specimens of 304 austenite stainless steel with the hydrogen attack bubbles orcracks were heat treated at 600℃ for 6h. The SEM and TEM observations on thespecimens before and after the heat treatment showed that the bubbles or cracks could behealed completely by heat treatment. The healing of hydrogen attack bubbles or cracksis closely related to heat diffusion of Fe and C atoms in austenite. The driving forceof crack healing results fram the plastic deforming energy Es induced by the growthof hydrogen attack bubbles or cracks. The critical condition of healing of bubbles orcracks is Es ≥ 2γ/r (where γγ is the surface tension, r is the radius of bubbles or halflength of crack). During healing of the hydrogen attack bubbles or cracks, the recovery,polygonization and recrystallization of the sub-grain also occured. | X.G.Li,C.F.Dong and H.Chen School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China State Key Laboratory of Corrosion and Protection, Institute of Metal Research, The Chinese Academy of Sciences, She | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，4： | 4 |
| 4 | Effects of oxide stringers on the β-phase depletion behaviour in thermally sprayed CoNiCrAlY coatings during isothermal oxidation显示文摘This paper details an investigation of the effects of oxide stringers on theβ-phase depletion behaviour in thermally sprayed CoNiCrAlY coatings.Vacuum Plasma Sprayed(VPS)Co NiCrAlY coatings,which are free of oxide stringers,are used as the reference materials in comparison with High-Velocity Oxy-Fuel(HVOF)sprayed CoNiCrAlY coatings during isothermal oxidation at 1100℃.An outer layer of spinel oxides and an inner layer of alumina are formed in the as-sprayed coatings,while only a single alumina scale is found in the heat-treated coatings.Lessβ-phase depletion occurred in the HVOF coatings than in the VPS coatings.It was found that theβphases tend to coalesce at the oxide stringers in the HVOF coatings,which is likely due to the internal oxide particles and stringers acting as short diffusion barriers to tie up theβphase and inhibit theβ-phase depletion. | H.Chen A.Rushworth | 2020 | Journal of Materials Science & Technology2020，42，10： | 3 |
| 5 | STUDY ON THE STABILITY OF T'PHASE IN THE Al-Zn-Cu TERNARY SYSTEM显示文摘The phase constitutes and phase compositions in the eight alloys designed with different compositions of Al-Zn-Cu system have been determined after the homogenous treatment and then equilibrium cooling to 20℃ by use of optical microscope, electron probe microanalysis and X-ray diffraction. It has been found that there existed the T phase in the seven alloys. Consequently, it was testified that the T phase was stable at room temperature. At the same time, the phase relationship was not locally right for the isothermal section of 20℃ of Al-Zn-Cu system of the ASM published in 1997. | H.Chen X. Xin D. Y.Dong Y.P. Ren S.M.Hao | 2004 | Acta Metallurgica Sinica(English Letters)2004，17，3： | 2 |
| 6 | Enhancing strength and ductility of AlSi10Mg fabricated by selective laser melting by TiB_(2)nanoparticles显示文摘In the metallic components fabricated by the emerging selective laser melting(SLM)technology,most strategies used for strengthening the materials sacrifice the ductility,leading to the so-called strengthductility trade-off.In the present study,we report that the strength and ductility of materials can be enhanced simultaneously by introducing nanoparticles,which can break the trade-off of the metallic materials.In the case of in-situ nano-TiB_(2)decorated AlSi10Mg composites,the introduced nanoparticles lead to columnar-to-equiaxed transition,grain refinement and texture elimination.With increasing content of nanoparticles,the strength increases continually.Significantly,the ductility first increases and then decreases.Our results show that the ductility is controlled by the competition between the crack-induced catastrophic fracture and ductile fracture associated with dislocation activities.The first increase of ductility is mainly attributed to the suppression of crack-induced catastrophic fracture when TiB_(2)nanoparticles present.With the further increase of TiB_(2)nanoparticles,the subsequent decrease of ductility is mainly controlled by dislocation activities.Thus,the materials will exhibit the optimum strength and ductility combination in a certain range of TiB_(2)nanoparticles.This study clarifies the physical mechanism controlling ductility for nano-TiB_(2)decorated Al Si10Mg composites,which provides the insights for the design of structural materials. | Y.K.Xiao H.Chen Z.Y.Bian T.T.Sun H.Ding Q.Yang Y.Wu Q.Lian Z.Chen H.W.Wang | 2022 | Journal of Materials Science & Technology2022，，14： | 2 |
| 7 | Use of a stress inducible promoter to drive ectopic AtCBF expression improves potato freezing tolerance while minimizing negative effects on tuber yield显示文摘 | María‐TeresaPino Jeffrey S.Skinner Eung‐JunPark ZoranJekni? Patrick M.Hayes Michael F.Thomashow Tony H. H.Chen | 2007 | Plant Biotechnology Journal2007，，5： | 1 |
| 8 | Textual analysis of stock market prediction using breaking financial news显示文摘 | Schumaker R P H.Chen | | 0，，02： | 1 |
| 9 | Glycinebetaine protects plants against abiotic stress: mechanisms and biotechnological applications显示文摘 | TONY H. H.CHEN NORIOMURATA | 2010 | Plant Cell & Environment2010，，1： | 1 |
| 10 | SYNTHESIS AND THERMAL STABILITY OF NANOCOMPOSITE nc-TiN/a-TiB_2 THIN FILMS显示文摘Several nc-TiN/a-TiB2 thin films comprised of nanocrystalline (nc-) TiN and amor phous (a-) TiB2 phases were deposited on Si(100) at room temperature by reactive unbalanced dc magnetron sputtering, followed by vacuum annealed at 400, 600, 80 0 and 1000℃ for 1h, respectively. Effects of B content on microstructure, mecha nical behaviors and thermal microstructure stability have been investigated by X -ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and nanoindentation measurements. The results indicated that B addition greatly affected both microstructure and mechanical behavior of nc-Ti N/a-TiB2 thin films. With increasing B content the grain size decreased. A maxim um hardness value of about 33GPa was obtained at B content of about 19at.%. The improved mechanical properties of nc-TiN/a-TiB2 films with the addition of B int o TiN were attributed to their densified microstructure with development of fine grain size. Only addition of sufficient B could restrain grain growth during an nealing. High B content resulted in high microstructure stability. The crystalli zation of amorphous matrix occurred at about 800℃, forming TiB or TiB2 crystall ite, depending on B content. Before that no change in bonding configuration was found. | Y.H.Lu Z.F.Zhou P.Sit Y.G.Shen K.Y.Li H.Chen | 2005 | Acta Metallurgica Sinica(English Letters)2005，18，3： | 1 |
| 11 | 查看详情显示文摘 | X.Shan H.Chen | | 0，，03： | 1 |
| 12 | 查看详情显示文摘 | X.Shan H.Chen | | 0，，04： | 1 |
| 13 | Advances in scanning electron microscope moire显示文摘 | H.Chen D.Liu | | 0，，2： | 1 |
| 14 | Expanded Analogy between Boltzmann Kinetic Theory of Fluid and Turbulence显示文摘 | H.Chen S.A.Orszag I.Staroselsky S.Succi | | 0，，： | 1 |
| 15 | Effects of an educational program with interactive videodisc systems in improving critical thinking dispositions for RN-BSN students in Taiwan显示文摘 | M.Yeh H.Chen | | 0，，： | 1 |
| 16 | 查看详情显示文摘 | R.Zhang H.Chen | | 0，，06： | 1 |
| 17 | The effect of recrystallization on corrosion and electrochemical behavior of 7150 Al alloy显示文摘 | G. S.Peng K. H.Chen H. C.Fang S. Y.Chen H.Chao | 2011 | Materials and Corrosion2011，，1： | 1 |
| 18 | 查看详情显示文摘 | M.Sbragaglia R.Benzi L.Biferale X.Shan H.Chen and S.Succi | | 0，，： | 1 |
| 19 | Evolution of the southern Mu US desert in north China over the past 50 years: an analysis using proxies of human activity and climate parameters显示文摘 | X.Wang F.‐H.Chen Z.Dong D.Xia | 2005 | Land Degrad Dev2005，，4： | 1 |
| 20 | Wind measurements with 355-nm molecular Doppler lidar显示文摘 | B.M.Gentry H.Chen S.X.Li | | 0，，： | 1 |
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