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Showing 1 to 12 of 162 entries
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Energy-based truncation of multi-determinant wavefunctions in quantum Monte Carlo.

The Journal of chemical physics

Per MC, Cleland DM.
PMID: 28456183
J Chem Phys. 2017 Apr 28;146(16):164101. doi: 10.1063/1.4981527.

We present a method for truncating large multi-determinant expansions for use in diffusion Monte Carlo calculations. Current approaches use wavefunction-based criteria to perform the truncation. Our method is more intuitively based on the contribution each determinant makes to the...

Complex solutions under shear and pressure: a rheometer setup for X-ray scattering experiments.

Journal of synchrotron radiation

Wieland DCF, Zander T, Garamus VM, Krywka C, Dedinaite A, Claesson P, Willumeit-Römer R.
PMID: 28452756
J Synchrotron Radiat. 2017 May 01;24:646-652. doi: 10.1107/S1600577517002648. Epub 2017 Mar 22.

A newly developed high-pressure rheometer for in situ X-ray scattering experiments is described. A commercial rheometer was modified in such a way that X-ray scattering experiments can be performed under different pressures and shear. First experiments were carried out...

Performance of quantum Monte Carlo for calculating molecular bond lengths.

The Journal of chemical physics

Cleland DM, Per MC.
PMID: 27036428
J Chem Phys. 2016 Mar 28;144(12):124108. doi: 10.1063/1.4944826.

This work investigates the accuracy of real-space quantum Monte Carlo (QMC) methods for calculating molecular geometries. We present the equilibrium bond lengths of a test set of 30 diatomic molecules calculated using variational Monte Carlo (VMC) and diffusion Monte...

Direct observation of isolated Damon-Eshbach and backward volume spin-wave packets in ferromagnetic microstripes.

Scientific reports

Wessels P, Vogel A, Tödt JN, Wieland M, Meier G, Drescher M.
PMID: 26906113
Sci Rep. 2016 Feb 24;6:22117. doi: 10.1038/srep22117.

The analysis of isolated spin-wave packets is crucial for the understanding of magnetic transport phenomena and is particularly interesting for applications in spintronic and magnonic devices, where isolated spin-wave packets implement an information processing scheme with negligible residual heat...

A simple chemoselective method for the deprotection of acetals and ketals using bismuth nitrate pentahydrate.

The Journal of organic chemistry

Eash KJ, Pulia MS, Wieland LC, Mohan RS.
PMID: 11101407
J Org Chem. 2000 Dec 01;65(24):8399-401. doi: 10.1021/jo001202g.

No abstract available.

Steering attosecond electron wave packets with light.

Science (New York, N.Y.)

Kienberger R, Hentschel M, Uiberacker M, Spielmann Ch, Kitzler M, Scrinzi A, Wieland M, Westerwalbesloh T, Kleineberg U, Heinzmann U, Drescher M, Krausz F.
PMID: 12114530
Science. 2002 Aug 16;297(5584):1144-8. doi: 10.1126/science.1073866. Epub 2002 Jul 11.

Photoelectrons excited by extreme ultraviolet or x-ray photons in the presence of a strong laser field generally suffer a spread of their energies due to the absorption and emission of laser photons. We demonstrate that if the emitted electron...

Advantages of stereo imaging of metallic surfaces with low voltage backscattered electrons in a field emission scanning electron microscope.

Journal of microscopy

Richards RG, Wieland M, Textor M.
PMID: 10947904
J Microsc. 2000 Aug;199:115-23. doi: 10.1046/j.1365-2818.2000.00717.x.

High emission current backscattered electron (HC-BSE) stereo imaging at low accelerating voltages ( 10 keV) BSE or SE stereo images. The low voltage HC-BSE stereo images displayed similar surface detail to the low voltage SE images, although they showed...

Strengths and weaknesses of faculty teaching performance reported by undergraduate and graduate nursing students: a descriptive study.

Journal of professional nursing : official journal of the American Association of Colleges of Nursing

Wolf ZR, Bender PJ, Beitz JM, Wieland DM, Vito KO.
PMID: 15176014
J Prof Nurs. 2004 Mar-Apr;20(2):118-28. doi: 10.1016/j.profnurs.2004.03.003.

The purpose of this study was to describe the patterns of strengths and weaknesses of faculty teaching performance as reported by undergraduate and graduate nursing students on a narrative section of a university faculty evaluation form. The study used...

GINKGO.

Science (New York, N.Y.)

Wieland GR.
PMID: 17802330
Science. 1935 May 24;81(2108):515-6. doi: 10.1126/science.81.2108.515-a.

No abstract available.

A TAXONOMIST'S EXPERIENCE WITH HYBRIDS IN THE WILD.

Science (New York, N.Y.)

Wiegand KM.
PMID: 17817007
Science. 1935 Feb 15;81(2094):161-6. doi: 10.1126/science.81.2094.161.

No abstract available.

Surface characterization of implant materials c.p. Ti, Ti-6Al-7Nb and Ti-6Al-4V with different pretreatments.

Journal of materials science. Materials in medicine

Sittig C, Textor M, Spencer ND, Wieland M, Vallotton PH.
PMID: 15347992
J Mater Sci Mater Med. 1999 Jan;10(1):35-46. doi: 10.1023/a:1008840026907.

The biocompatibility of commercially pure titanium and its alloys is closely related to their surface properties, with both the composition of the protecting oxide film and the surface topography playing an important role. Surfaces of commercially pure titanium and...

WOOD OPALIZATION.

Science (New York, N.Y.)

Wieland GR.
PMID: 17840463
Science. 1932 Sep 23;76(1969):278-9. doi: 10.1126/science.76.1969.278.

No abstract available.

Showing 1 to 12 of 162 entries