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Displaying 576 - 600 of 2933

Method for reproducible automated bacterial cell culture and measurement

August 8, 2022
Author(s)
David Ross, Peter Tonner, Olga Vasilyeva
Microbial cell culture is one of the most commonly performed protocols for synthetic biology, and laboratories are increasingly using 96-well plates and laboratory automation systems for cell culture. Here we describe a method for reproducible microbial

Classical polarimetry with a twist: a compact, geometric approach

May 22, 2019
Author(s)
William Sparks, Thomas Germer, Rebecca M. Sparks
We present an approach to classical polarimetry which requires no moving parts, is compact and robust, and which encodes the complete polarization information on a single data frame, accomplished by replacing the rotation of components such as wave plates

Variable Bell states in a polarization-entangled photon source

July 14, 2025
Author(s)
Jabir Marakkarakath Vadakkepurayil, Shruti Sundar, Daniel Razansky
Bell states are fundamental resources in quantum optics, underpinning a range of applications in quantum computation and communication. However, many experimental sources focus on generating a single Bell state, limiting their utility for protocols that

Planar Resistors for Probe Station Calibration

December 1, 1992
Author(s)
Dave K. Walker, Dylan F. Williams, Nicole Morgan
… tip, and fabrication processes on the impedance of planar nickel-chromium resistors. Resistor reactance is a strong …

Sub-micron gap capacitor for measurement of breakdown voltage in air

March 24, 2006
Author(s)
Emmanouel S. Hourdakis, Brian Simonds, Neil M. Zimmerman
We have developed a new method for measuring the value of breakdown voltage in air for electrode separations from 400 nm to 45 'm. The electrodes used were thin film Au lines evaporated on sapphire. The resulting capacitors had an area of 80 'm by 80 'm

Artifacts in Ballistic Magnetoresistance Measurements

June 1, 2004
Author(s)
William F. Egelhoff Jr., L Gan, H Ettedgui, Y Kadmon, Cedric J. Powell, P J. Chen, Alexander J. Shapiro, Robert McMichael, J Mallett, Thomas P. Moffat, Mark D. Stiles, Erik B. Svedberg
… (Δ}R) that occur. Metallic particles suspended in plating solution, created and collected from the … similar high values of Δ}R/R were measured without any plating process being performed. We attribute this effect to …

The Planck constant, watt and vacuum balances, and an evolving Mise en pratique for the kilogram in North America

July 1, 2012
Author(s)
Jon R. Pratt, David B. Newell, Zeina J. Kubarych, Stephan Schlamminger, Darine El Haddad, Ruimin Liu, Edwin R. Williams, Dave Inglis, Barry M. Wood, Carlos Sanchez, Richard Green
We report preparations underway at the National Institute of Standards and Technology (NIST) in the United States and at the National Research Council (NRC) in Canada to support the redefinition of the international system of units (SI) and the development

Surface and Interface Properties of PVDF/Acrylic Copolymer Blends

November 1, 2002
Author(s)
Xiaohong Gu, Tinh Nguyen, Mark R. VanLandingham, D Nguyen
Poly(vinylidene fluoride) (PVDF) is commonly blended with amorphous polymers to improve its optical property. The surface and interface properties of PVDF blended with different amounts of poly(methyl methacrylate) and poly(ethyl acrylate) copolymer (PMMA

Radiation-suppressed superconducting quantum bit in a planar geometry

February 19, 2013
Author(s)
Martin O. Sandberg, Tomas A. Ohki, Jose A. Aumentado, Martin P. Weides, David P. Pappas
We present a superconducting transmon qubit circuit design based on large, coplanar capacitor plates and a microstrip resonator. The microstrip geometry, with the ground plane on the back, enhances access to the circuit for state preparation and

Measurement of the Rheological Properties of Cement Paste: A New Approach

July 1, 1999
Author(s)
Chiara F. Ferraris
This paper presents a new approach for predicting the rheological properties of concrete from rheological measurements on cement paste and from concrete composition. This approach requires measurement of the cement paste rheology under the same conditions

Provisional flat plate solar collector testing procedures:

January 1, 1977
Author(s)
David R Reese, Howard H Yen, Joe H Johnson, Robert E Losey, Wayne L Swanson, Rick E Pitman, Janet M Kennedy, David Wakeman, Elmer R Stread, Thaomas W Reichard, Edgar V Leyendecker, Louis E Cattaneo, Larry W Masters, Wi Walton
… Provisional flat plate solar collector testing procedures: …
Displaying 576 - 600 of 2933
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