Author
Hua Zhang
Other affiliations: Shenzhen University, Zhengzhou University, Norwegian University of Science and Technology ...read more
Bio: Hua Zhang is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Medicine & Graphene. The author has an hindex of 163, co-authored 1503 publications receiving 116769 citations. Previous affiliations of Hua Zhang include Shenzhen University & Zhengzhou University.
Topics: Medicine, Graphene, Materials science, Chemistry, Catalysis
Papers published on a yearly basis
Papers
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TL;DR: In this paper, a simple sheared and annealed sample exhibits larger fracture elongations regardless of directions and its Erichsen value increases by ∼53% compared with that of the as-received sheet.
50 citations
TL;DR: This study provides critically-important and baseline knowledge for a widespread groundwater As examination along these three floodplains, which is vital for launching suitable As mitigation and remediation programs to reduce the potential health risk.
50 citations
TL;DR: The in vitro cytotoxic activities of all the alkaloids except 7, 18, 27, 38, 40, and 44 against the tumor cell lines P-388 murine leukemia and A-549 human lung carcinoma were evaluated.
Abstract: Six new indole alkaloids, 14,15-didehydro-10,11-dimethoxy-16-epivincamine (1), 14,15-didehydro-10-hydroxy-11-methoxy-16-epivincamine (2), 14,15-didehydro-10,11-dimethoxyvincamine (3), 14,15-didehydro-10-hydroxy-11-methoxyvincamine (4), 19,20-didehydro-6α-hydroxyervatamine (5), and dehydroxyervataminol (6), along with 36 known indole alkaloids, were isolated from three species, E. officinalis, E. divaricata, and E. divaricata Gouyahua, of the Ervatamia genus. The structures of these alkaloids were characterized on the basis of spectroscopic methods and chemical correlation. The in vitro cytotoxic activities of all the alkaloids except 7, 18, 27, 38, 40, and 44 against the tumor cell lines P-388 murine leukemia and A-549 human lung carcinoma were evaluated. Only the dimeric indole alkaloids showed cytotoxic activities.
50 citations
TL;DR: It is shown that bundles of carbon nanotubes can be coiled into ring structures by controlling the contraction of their polymer shells.
Abstract: We show that bundles of carbon nanotubes can be coiled into ring structures by controlling the contraction of their polymer shells. With the robust carbon nanotubes, we demonstrate their reversible transformation between circular and compressed rings in a colloid.
50 citations
TL;DR: In this paper, high crystallinity and pure phase vo2 (m) powder is synthesized by a novel and facile method, aiding by additional manual grinding and etching process, 22 nm high-quality vo2(m) nanoparticles can be obtained.
50 citations
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TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.
Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …
33,785 citations
01 May 1993
TL;DR: Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems.
Abstract: Three parallel algorithms for classical molecular dynamics are presented. The first assigns each processor a fixed subset of atoms; the second assigns each a fixed subset of inter-atomic forces to compute; the third assigns each a fixed spatial region. The algorithms are suitable for molecular dynamics models which can be difficult to parallelize efficiently—those with short-range forces where the neighbors of each atom change rapidly. They can be implemented on any distributed-memory parallel machine which allows for message-passing of data between independently executing processors. The algorithms are tested on a standard Lennard-Jones benchmark problem for system sizes ranging from 500 to 100,000,000 atoms on several parallel supercomputers--the nCUBE 2, Intel iPSC/860 and Paragon, and Cray T3D. Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems. For large problems, the spatial algorithm achieves parallel efficiencies of 90% and a 1840-node Intel Paragon performs up to 165 faster than a single Cray C9O processor. Trade-offs between the three algorithms and guidelines for adapting them to more complex molecular dynamics simulations are also discussed.
29,323 citations
Journal Article•
28,685 citations
28 Jul 2005
TL;DR: PfPMP1）与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作�ly.
Abstract: 抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1（PfPMP1）与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员，通过启动转录不同的var基因变异体为抗原变异提供了分子基础。
18,940 citations
TL;DR: This work reviews the historical development of Transition metal dichalcogenides, methods for preparing atomically thin layers, their electronic and optical properties, and prospects for future advances in electronics and optoelectronics.
Abstract: Single-layer metal dichalcogenides are two-dimensional semiconductors that present strong potential for electronic and sensing applications complementary to that of graphene.
13,348 citations