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Displaying 501 - 525 of 1646

In-Situ Hardening Hydroxyapatite-Based Scaffold for Bone Repair

July 7, 2005
Author(s)
Yu Zhang, Hockin D. Xu, Shozo Takagi, Laurence C. Chow
… hydroxyapatite implants require machining, calcium phosphate cement (CPC) bone repair material is moldable, … bone tissue engineering, calcium phosphate cement, hydroxyapatite, in-situ hardening, …

Reinvestigation of the Microwave Spectrum of 2-Methylmalonaldehyde

January 11, 2008
Author(s)
Vadim V. Ilyushin, E A. Alekseev, Y C. Chou, Y-C Hsu, Jon T. Hougen, Francis J. Lovas, L B. Picaux
… (2-MMA) exists in the gas phase as a six-membered hydrogen-bonded ring [HO-CH=C(CH3)-CH=O] and exhibits two large-amplitude motions, an intramolecular hydrogen transfer and a methyl torsion. The former motion is interesting because transfer of the hydrogen atom from the hydroxyl to the carbonyl group induces …

Developments in the Ni-Nb-Zr Amorphous Alloy Membranes

March 1, 2016
Author(s)
S. Sarker, D. Chandra, M. Hirscher, M. Dolan, D. Isheim, J. Wermer, D. Viano, M. Baricco, Terrence J. Udovic, D. Grant, O. Palumbo, A. Paolone, R. Cantelli
… is necessary to deliver a high purity H 2 product. Hydrogen-selective alloy membranes are emerging as a viable … depending on the composition, can exhibit relatively high hydrogen permeability between 473 and 673 K. Here we review … Amorphous, Hydrogen Permeation, Membranes, Metallic Glass, Nickel, …

Porous Graphene Oxide Frameworks: Synthesis and Gas Sorption Properties

July 1, 2011
Author(s)
Gadipelli Srinivas, Jacob Burress, Jamie Ford, Taner Yildirim
… Both isosteric heat of adsorption (Q st ) and the adsorbed hydrogen capacity per surface area are twice as large as … interlayer spacing between graphene planes such that hydrogen molecules interact with both surfaces. Finally, our … Graphene Oxide, Covalent Porous Frameworks, Boronic Acids, Hydrogen Storage. …

Reference Viscosities of H 2 , CH 4 , Ar and Xe at Low Densities

August 1, 2007
Author(s)
E May, Robert F. Berg, Michael R. Moldover
… We determined the zero-density viscosity eta of hydrogen, methane and argon in the temperature range 200 K to 400 K, with standard uncertainties of 0.084 % for hydrogen and argon and 0.096 % for methane. These … argon, hydrogen, methane, thermal conductivity, viscosity, xenon …

Co-adsorption of cations causes the apparent pH dependence of hydrogen adsorption on a stepped platinum single-crystal electrode

October 23, 2017
Author(s)
Xiaoting Chen, Ian McCrum, Kathleen Schwarz, Michael Janik, Marc Koper
… of the fundamental interactions of the key intermediates (hydrogen and hydroxyl) at electrified metal-aqueous … co-adsorption causes the apparent pH dependence of "hydrogen" adsorption in the step sites of platinum electrodes. … of cations causes the apparent pH dependence of hydrogen adsorption on a stepped platinum single-crystal …

Coordinated Neutron and X-ray Computed Tomography of Meteorites: Detection and Distribution of Hydrogen-Bearing Materials

August 29, 2022
Author(s)
Allan Treiman, Jacob LaManna, Isabella DeClue, Daniel S. Hussey, Lawrence Anovitz
… The presence and distribution of hydrogen-bearing materials in meteorites are important … NXCT, can reveal the presence and distributions of hydrogen-bearing materials in meteorites, and thus help … Tomography of Meteorites: Detection and Distribution of Hydrogen-Bearing Materials …

Results from neutron imaging phase change experiments with LH2 and LCH4

July 2, 2022
Author(s)
Kishan Bellur, Ezequiel Medici, Daniel Hussey, David Jacobson, Jacob LaManna, Juscelino Leao, Julia Scherschligt, James Hermanson, Chang Kyoung Choi, Jeffrey Allen
… Predicting evaporation and cryo-storage behavior of liquid hydrogen poses a challenge for both terrestrial energy … rates were determined through image processing. Both hydrogen and methane are perfectly wetting fluids as … propellant, condensation, evaporation, thin film, liquid hydrogen, liquid methane …

Glycosidic Linkage Conformation of Methyl-alpha-Mannopyranoside

July 31, 2008
Author(s)
Orkid Coskuner, Denis E. Bergeron, Luis C. Rincon, Jeffrey W. Hudgens, Carlos A. Gonzalez
… classical simulations are insensitive to intermolecular hydrogen bonding interactions that CPMD simulations identify … DFT, CPMD, MD, hydration, hydrogen bonds, carbohydrate. …
Displaying 501 - 525 of 1646
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