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Displaying 9101 - 9125 of 73885

Helping Robots Stay on Target

December 2, 2019
Author(s)
Elena R. Messina, Jeremy Marvel
For decades, many manufacturers have counted on robots to tirelessly produce parts of predictable quality. One of the key attributes of robots is their repeatability, which means that their tool tip will return to the same pre-programmed location with a

Repeated Measurements with Minimally Destructive Partial-Transfer Absorption Imaging

December 2, 2019
Author(s)
Ian B. Spielman, Ana Valdes Curiel, Dimitris Trypogeorgos, Erin Marshall, Nathan Lundblad
We demonstrate partial-transfer absorption imaging as a technique for repeatedly imaging an ultracold atomic ensemble with minimal perturbation. We prepare an atomic cloud in a state that is dark to the imaging light and then use a microwave pulse to

Chapter 3: Calibration and Characterization of Optical Radiometers

December 1, 2019
Author(s)
Giuseppe Zibordi, Kenneth Voss, B. Carol Johnson, James Mueller
Procedures for calibrating and characterizing optical radiometers, including the determination of characteristics peculiar to underwater sensors, are presented in this chapter. The characterizations are considered essential to verify the compliance with

Cognitive Information Measurements: A New Perspective

December 1, 2019
Author(s)
Hamid Gharavi
From a traditional point of view, the value of information does not change during transmission. The Shannon information theory considers information transmission as a statistical phenomenon for measuring the communication channel capacity. However, in

Extreme Magnetic Field-Boosted Superconductivity

December 1, 2019
Author(s)
Sheng NMN Ran, I Lin NMN Liu, Yun Suk Eo, Daniel J. Campbell, Paul M. Neves, Wesley T. Fuhrman, Shanta Ranjan Saha, Christoper Eckberg, Hyunsoo Kim, David Graf, Fedor Balakirev, John Singleton, Johnpierre N. Paglione, Nicholas Butch
Applied magnetic fields underlie exotic quantum states, such as the fractional quantum Hall effect 1 and Bose-Einstein condensation of spin excitations 2. Superconductivity, on the other hand, is inherently antagonistic towards magnetic fields. Only in

Green Button Data-Access Model for Smart Cities

December 1, 2019
Author(s)
Cuong Nguyen, Jeremy J. Roberts
The purpose of the paper is to provide a look into the lessons learned through the roll-out of the U.S. National Institute of Standards and Technology and U.S. Department of Energy Green Button electricity, natural gas, and water data-access initiative: to

Standardization of File Recovery Classification and Authentication

December 1, 2019
Author(s)
Eoghan Casey, Alexander J. Nelson, Jessica Hyde
Digital forensics can no longer tolerate software that cannot be relied upon to perform specific functions such as file recovery. The root of this problem is a lack of clearly defined software requirements, which compels users and tool testers to make

Thermal response of a composite floor system to the standard fire exposure

December 1, 2019
Author(s)
Dilip K. Banerjee
This paper discusses the development of a finite element model (FEA) of a full-scale composite floor system and application of this model to predict the heating of steel members when exposed to a standard fire during fire resistance experiments. The model
Displaying 9101 - 9125 of 73885
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