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Showing 1 to 12 of 188940 entries
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Molecular interpenetration within the columnar structure of crystalline anilino-beta-cyclodextrin.

Organic letters

Liu Y, You CC, Zhang M, Weng LH, Wada T, Inoue Y.
PMID: 10964359
Org Lett. 2000 Sep 07;2(18):2761-3. doi: 10.1021/ol000135+.

A single crystal of mono(6-anilino-6-deoxy)-beta-cyclodextrin was prepared, and its crystal structure was determined by X-ray crystallographic analysis, which clearly revealed that the anilino groups are consecutively included intermolecularly into the adjacent cyclodextrin cavities in the crystal, thus giving rise...

Nonequilibrium molecular dynamics simulations of heat flow in one-dimensional lattices.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Zhang F, Isbister DJ, Evans DJ.
PMID: 11088130
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 2000 Apr;61(4):3541-6. doi: 10.1103/physreve.61.3541.

We study the use of the Evans nonequilibrium molecular dynamics (NEMD) heat flow algorithm for the computation of the heat conductivity in one-dimensional lattices. For the well-known Fermi-Pasta-Ulam model, it is shown that when the heat field strength is...

How Capillary Electrophoresis Sequenced the Human Genome This Essay is based on a lecture given at the Analytica 2000 conference in Munich (Germany) on the occasion of the Heinrich-Emanuel-Merck Prize presentation. .

Angewandte Chemie (International ed. in English)

Dovichi NJ, Zhang J.
PMID: 11169637
Angew Chem Int Ed Engl. 2000 Dec 15;39(24):4463-4468. doi: 10.1002/1521-3773(20001215)39:24<4463::aid-anie4463>3.0.co;2-8.

No abstract available.

Assessing the contribution of natural sources to regional atmospheric mercury budgets.

The Science of the total environment

Gustin MS, Lindberg SE, Austin K, Coolbaugh M, Vette A, Zhang H.
PMID: 11032136
Sci Total Environ. 2000 Oct 02;259(1):61-71. doi: 10.1016/s0048-9697(00)00556-8.

Naturally mercury-enriched substrate is a long-lived source of mercury to the global atmospheric mercury cycle. Field flux chambers, laboratory gas exchange chambers and micrometeorological methods may be applied to estimate emissions from these sources. However, field chamber experimental design...

Orbitally degenerate spin-1 model for insulating V2O3.

Physical review letters

Mila F, Shiina R, Zhang F, Joshi A, Ma M, Anisimov V, Rice TM.
PMID: 10970596
Phys Rev Lett. 2000 Aug 21;85(8):1714-7. doi: 10.1103/PhysRevLett.85.1714.

Motivated by recent neutron, x-ray absorption, and resonant scattering experiments, we revisit the electronic structure of V2O3. We propose a model in which S = 1 V3+ ions are coupled in the vertical V-V pairs forming twofold orbitally degenerate...

Effect of defects on the elastic properties of Wustite.

Physical review letters

Zhang J.
PMID: 11015950
Phys Rev Lett. 2000 Jan 17;84(3):507-10. doi: 10.1103/PhysRevLett.84.507.

Wustite (FexO) has been studied under static high pressure in the composition range x = 0.95-0.99. Fe0.99O is substantially less compressible than FexO with x

The distribution and copy number of copia-like retrotransposons in rice (Oryza sativa L.) and their implications in the organization and evolution of the rice genome.

Proceedings of the National Academy of Sciences of the United States of America

Wang S, Liu N, Peng K, Zhang Q.
PMID: 10359797
Proc Natl Acad Sci U S A. 1999 Jun 08;96(12):6824-8. doi: 10.1073/pnas.96.12.6824.

We used 22 fragments corresponding to the reverse transcriptase domain of copia-like retrotransposons as representatives to study the organization and distribution of these elements in the rice genome. The loci detected by these 22 fragments were assigned to 47...

Periodic boundary motion in thermal turbulence.

Physical review letters

Zhang J, Libchaber A.
PMID: 10990686
Phys Rev Lett. 2000 May 08;84(19):4361-4. doi: 10.1103/PhysRevLett.84.4361.

A free-floating plate is introduced in a Benard convection cell with an open surface. It partially covers the cell and distorts the local heat flux, inducing a coherent flow that in turn moves the plate. Remarkably, the plate can...

Shock-heated NH3 in a Molecular Jet Associated with a High-Mass Young Star.

The Astrophysical journal

Zhang Q, Hunter TR, Sridharan TK, Cesaroni R.
PMID: 10577953
Astrophys J. 1999 Dec 20;527(2):L117-L120. doi: 10.1086/312411.

We present the discovery of shock-excited NH3 in a well-collimated jet associated with the extremely young high-mass star IRAS 20126+4104. The NH3 (3, 3) and (4, 4) emission is dominated by three clumps along the SiO jet. At the...

Computational design of direct-bandgap semiconductors that lattice-match silicon.

Nature

Zhang P, Crespi VH, Chang E, Louie SG, Cohen ML.
PMID: 11343113
Nature. 2001 Jan 04;409(6816):69-71. doi: 10.1038/35051054.

Crystalline silicon is an indirect-bandgap semiconductor, making it an inefficient emitter of light. The successful integration of silicon-based electronics with optical components will therefore require optically active (for example, direct-bandgap) materials that can be grown on silicon with high-quality...

Preparation of Luminescent Polyelectrolyte/Cu-Doped ZnSe Nanoparticle Multilayer Composite Films.

Journal of colloid and interface science

Hao E, Zhang H, Yang B, Ren H, Shen J.
PMID: 11374923
J Colloid Interface Sci. 2001 Jun 15;238(2):285-290. doi: 10.1006/jcis.2001.7472.

ZnSe and Cu-doped ZnSe nanoparticle aqueous suspensions were prepared in the presence of mercaptopropionic acid (MPA). Cu-doped ZnSe nanoparticles exhibited a strong blue emission that was strongly dependent upon the Cu dopant level and the chemical surface passivation produced...

Poly.

Acta crystallographica. Section C, Crystal structure communications

Hao X, Wei YG, Liu Q, Zhang SW.
PMID: 10777925
Acta Crystallogr C. 2000 Mar;56:296-8. doi: 10.1107/s0108270199015358.

No abstract available.

Showing 1 to 12 of 188940 entries