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Displaying 18951 - 18975 of 74189

Open Calphad - a free thermodynamic software

January 17, 2015
Author(s)
Bo Sundman, Ursula R. Kattner, Mauro Palumbo, Suzana G. Fries
The use of thermodynamics in many applications in material science like simulation of phase trans- formation suffers from the lack of high quality open source software for calculations of multicomponent systems. The goal of the Open Calphad (OC) software

Pyrolysis Smoke Generated Under Low-Gravity Conditions

January 17, 2015
Author(s)
Jiann C. Yang, Thomas G. Cleary, George W. Mulholland, D L. Urban, Gary A. Ruff, Zeng-guang Yuan, Marit Meyer, Victoria Bryg
A series of smoke experiments were carried out in the Microgravity Science Glovebox on the International Space Station (ISS) Facility to assess the impact of low-gravity conditions on the size distribution and structure of the smoke aerosol. This

Semiconductor Double Quantum Dot Micromaser

January 16, 2015
Author(s)
Michael Gullans, Yinyiu Liu, George Stehlik, Jacob M. Taylor, Jason Petta
The coherent generation of light, from masers to lasers, relies upon the specific structure of the individual emitters that lead to gain. Devices operating as lasers in the few- emitter limit provide opportunities for understanding quantum coherent

Bounds on quantum communication via Newtonian gravity

January 15, 2015
Author(s)
Jacob M. Taylor, Dvir Kafri, G J. Milburn
The classical understanding of gravity yields specific observ- able consequences, the most striking of which is the emergence of a 1/r2 force. In so far as communication can arise via such interactions between distant particles, we can ask what would be

NIST program of spectroscopic data for light elements of fusion interest

January 15, 2015
Author(s)
Joseph Reader, Alexander Kramida, Yuri Ralchenko, Wolfgang L. Wiese, Jeffrey R. Fuhr
This paper summarizes work at the National Institute of Standards and Technology (NIST) in support of the IAEA Coordinated Research Project on “Light Element Atom, Molecule and Radical Behaviour in the Divertor and Edge Plasma Regions.” It includes

Poly(sulfobetaine methacrylate)s as Electrode Modifiers for Inverted Organic Electronics

January 14, 2015
Author(s)
Hyunbok Lee, Egle Puodziukynaite, Dean DeLongchamp, Todd Emrick, Alejandro Briseno
We demonstrate the use of poly(sulfobetaine methacrylate) (PSBMA), and its pyrene-containing copolymer, as solution-processable work function reducers for inverted organic electronic devices. A notable feature of PSBMA is its orthogonal solubility relative

Bottom-up processing and low temperature transport properties of polycrystalline SnSe

January 13, 2015
Author(s)
Zhen-Hua Ge, Kaya Wei, Hutton Lewis, Joshua Martin, George S. Nolas
A simple hydrothermal approach was employed to synthesize SnSe nanorods. Micro sized flower shaped crystals were obtained under reaction temperatures below 180°C and nanorods were obtained at a reaction temperature of 180°C, the "flowers" changed to rods

How Oxidation and Dissolution in Diabase and Granite Control Porosity during Weathering

January 13, 2015
Author(s)
Ekaterina Bazilevskaya, Gernot Rother, David F. Mildner, Milan Pavich, David Cole, Maya P. Bhatt, Lixin Jin, Carl I. Steefel, Susan L. Brantley
Weathering extends to shallower depths on diabase than granite ridgetops despite similar climate and geomorphological regimes of despite similar climate and geomorphological regimes of denudation in the Virginia (USA) piedmont. Deeper weathering has been

Reversing hydride-ion formation in quantum-information experiments with Be+

January 12, 2015
Author(s)
Brian C. Sawyer, Justin G. Bohnet, Joseph W. Britton, John J. Bollinger
We demonstrate photodissociation of BeH + ions within a Coulomb crystal of thousands of 9Be + confined in a Penning trap. The BeH + molecular ions form via exothermic reactions between trapped, laser-cooled Be +($^2\text{P}_{3/2}$) and background H 2

Magnetic structure and anisotropy of [Co/Pd]_5/NiFe multilayers

January 9, 2015
Author(s)
Larysa Tryputen, Feng Guo, Liu Frank, T. N. Anh Nguyen, Majid Mohseni, Sunjae Chung, Yeyu Fang, Johan Akerman, Robert McMichael, Caroline Ross
The magnetization behavior, magnetic anisotropy and domain congurations of Co/Pd multilayers with perpendicular magnetic anisotropy capped with permalloy is investigated using magnetometry, magnetic force microscopy and ferromagnetic resonance. The

Multiply-ionized Atoms Isolated at low energy in a Unitary Penning Trap

January 9, 2015
Author(s)
Joseph Tan, Shannon Hoogerheide, Samuel Brewer, Nicholas D. Guise
Ions extracted from the EBIT at NIST are slowed and captured in a Penning trap that is made very compact ( 150 cm3) by a unitary architecture. Measurements after 1 ms of ion storage indicate that the captured ions are distributed with 5(1) eV of energy

Quantum Nonlinear Optics Near Optomechanical Instabilities

January 9, 2015
Author(s)
Xunnong Xu, Michael Gullans, Jacob Taylor
Optomechanical systems provide a unique platform for observing quantum behavior of macro- scopic objects. However, efforts towards realizing nonlinear behavior at the single photon level have been inhibited by the small size of the radiation pressure
Displaying 18951 - 18975 of 74189
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