Results 71 to 80 of about 22,379,061 (281)

Possible Indications of Electronic Inhomogeneities in Superconducting Nanowire Detectors

open access: yes, 2012
The voltage-carrying state of superconducting NbTiN nanowires, used for single-photon detectors, is analyzed. Upon lowering the current, the wire returns to the superconducting state in a steplike pattern, which differs from sample to sample. Elimination
Driessen, E. F. C.   +2 more
core   +1 more source

Friction as Contrast Mechanism in Heterodyne Force Microscopy [PDF]

open access: yes, 2016
The nondestructive imaging of subsurface structures on the nanometer scale has been a long-standing desire in both science and industry. A few impressive images were published so far that demonstrate the general feasibility by combining ultrasound with ...
Oosterkamp, T. H.   +2 more
core   +3 more sources

Methods of determining loads and fiber orientations in anisotropic non-crystalline materials using energy flux deviation [PDF]

open access: yes, 1993
An ultrasonic wave is applied to an anisotropic sample material in an initial direction and an angle of flux deviation of the ultrasonic wave front is measured from this initial direction. This flux deviation angle is induced by the unknown applied load.
Fitting, Dale W.   +2 more
core   +1 more source

A lightweight, high output soil sampler [PDF]

open access: yes, 1971
Sampler is useful on or under earth's surface or on sea bottom. Larger sample amount is obtained relative to sampler size and weight and limited particle size sample material is continuously delivered.
Howard, E. A.   +2 more
core   +1 more source

The generation and use of recombinant extracellular vesicles as biological reference material

open access: yesNature Communications, 2019
Recent years have seen an increase of extracellular vesicle (EV) research geared towards biological understanding, diagnostics and therapy. However, EV data interpretation remains challenging owing to complexity of biofluids and technical variation ...
Edward Geeurickx   +26 more
semanticscholar   +1 more source

Sample Preparation for X-ray Micro-computed Tomography of Woody Plant Material and Associated Xylem Visualisation Techniques

open access: yesBio-Protocol, 2016
Variation in the tissue structure of short rotation coppice (SRC) willow is a principle factor driving differences in lignocellulosic sugar yield yet much of the physiology and development of this tissue is unknown.
Nicholas Brereton
doaj   +1 more source

Apparatus and method for measuring the Seebeck coefficient and resistivity of materials [PDF]

open access: yes, 1973
An apparatus for measuring the thermoelectric properties of materials under high pressure is described that includes a pair of force transmitting assemblies constructed of thermally and electrically conductive material positioned between the ram and ...
Hadek, V.
core   +1 more source

Metallicities of Planet Hosting Stars: A Sample of Giants and Subgiants

open access: yes, 2010
This work presents a homogeneous derivation of atmospheric parameters and iron abundances for a sample of giant and subgiant stars which host giant planets, as well as a control sample of subgiant stars not known to host giant planets.
Arenou   +39 more
core   +1 more source

Radioactive method enables determination of surface areas rapidly and accurately [PDF]

open access: yes, 1966
Radioactive krypton adsorption technique is used to determine the surface area of more than one sample of material ...
Roesmer, J.   +3 more
core   +1 more source

Determination of local material properties of OSB sample by coupling advanced imaging techniques and morphology-based FEM simulation [PDF]

open access: yes, 2011
This is the publisher’s final pdf. The published article is copyrighted by Walter de Gruyter & Co. and can be found at: http://www.degruyter.com/.The goal was to determine local mechanical properties inside of oriented strand board (OSB) based on a ...
Hindman P.D.   +10 more
core   +2 more sources

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