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Displaying 551 - 575 of 1516

A Matter of Policy

March 26, 2012
Author(s)
David F. Ferraiolo, Jeffrey M. Voas, George Hurlburt
This paper discusses system security policies. System policies are the set of rules that when implemented afford a strategy for the protection of information. The policy objectives are diverse and span the social-economic spectrum. System policies govern

Cost-Efficient Routing with Controlled Node Mobility in Sensor Networks

September 1, 2011
Author(s)
Kamran Sayrafian
In this paper, an energy-efficient strategy is proposed for tracking a moving target in a mobile sensor network. The energy expenditure of the sensors in the network is assumed to be due to communication, sensing and movement. First, the target area is

Complex Systems Program Activities Summary, Fiscal Years 2007-2008

January 12, 2010
Author(s)
Sanford P. Ressler
This report summarizes the work of the Complex Systems Program within NIST s Information Technology Laboratory. The Overview presents some background material and a high-level overview of the Program s activities including significant technical

Design of an On-Chip Micro-Scale Nanoassembly System

November 3, 2006
Author(s)
Jason J. Gorman, Yong Sik Kim, Andras Vladar, Nicholas Dagalakis
… for this project are then discussed: nanomanipulation strategies using the nanoassembly system; MEMS precision …

MEMS-based Embedded Sensor Virtual Components for SoC

November 25, 2003
Author(s)
Muhammad Afridi, Allen R. Hefner Jr., David W. Berning, Colleen E. Hood, Ankush Varma, Bruce Jacob, Stephen Semancik
Advancement in MEMS-based sensors brings a new challenge for system-on-a-chip (SoC) design integration where analog and digital circuits coexist on a common substrate with the actual sensing platform. Integration of these MEMS-based sensors into an SoC

Towards Modeling the Evolution of Product Families

June 1, 2003
Author(s)
Fujun Wang, Steven J. Fenves, Sudarsan Rachuri, Ram D. Sriram
A strategy successfully used by manufacturing companies is to develop product families so as to offer a variety of products with reduced development costs. This paper introduces our initial research on the representation of the evolution of product

Onset of Fermi Degeneracy in a Trapped Atomic Gas

September 1, 1999
Author(s)
B. L. DeMarco, Deborah S. Jin
An evaporative cooling strategy that uses a two-component Fermi gas was employed to cool a magnetically trapped gas of 7 x 10 5 40K atoms to 0.5 of the Fermi temperature T f. In this temperature regime, where the state occupation at the lowest energies has

Alkali metal pyridinolate/piperidinolate pairs: A new type of materials for efficient reversible hydrogen storage

April 1, 2025
Author(s)
Alexis Munyentwali, Yang Yu, Xingchi Zhou, Wei Zhou, Qijun Pei, Khai Chen Tan, Anan Wu, Hui Wu, Teng He, Ping Chen
Chemical hydrogen storage in organic materials is a promising method thanks to its high storage density, reversibility, and safety. However, the dehydrogenation process of organic materials requires high temperatures due to their unfavorable thermodynamic

Anisotropic coarse-grain Monte Carlo simulations of lysozyme, lactoferrin, and NISTmAb by precomputing atomistic models

September 5, 2024
Author(s)
Harold Hatch, Christina Bergonzo, Marco Blanco, Guangcui Yuan, Sergei Grudinin, Mikael Lund, Joseph E. Curtis, Alexander Grishaev, Yun Liu, Vincent K. Shen
We develop a multiscale coarse-grain model of the NIST Monoclonal Antibody Reference Material 8671 (NISTmAb) to enable systematic computational investigations of high-concentration physical instabilities such as phase separation, clustering, and

Systematic Improvements in Transmon Qubit Coherence enabled by Niobium Surface Encapsulation

June 14, 2023
Author(s)
Mustafa BAL, Akshay Murthy, Francesco Crisa, Shaojiang Zhu, Florent Lecocq, Joe Aumentado, Joel Ullom, Pete Hopkins
We present a novel transmon qubit fabrication technique that yields systematic improvements in T1 coherence times. In this study, the devices are fabricated using a novel encapsulation strategy that involves passivating the surface of niobium and thereby

Effectiveness of dataset reduction in testing machine learning algorithms

August 25, 2020
Author(s)
Raghu N. Kacker, David R. Kuhn
… datasets of different sizes using two random sampling strategies, i.e., pure random and stratified random sampling. … indicate that reduced datasets produced by the two sample strategies do not differ significantly, and branch coverage …

A Review of Efforts to Improve Lipid Stability during Sample Preparation and Standardization Efforts to Ensure Accuracy in the Reporting of Lipid Measurements

May 19, 2020
Author(s)
John Bowden, Candice Z. Ulmer, Christina Jones, Jeremy P. Koelmel, Timothy J. Garrett, Juan J. Aristizabal-Henao, Hubert W. Vesper
… are sample dependent, it is generally recommended that strategies during sample preparation capable of quenching … a description of known mechanisms of lipid degradation, strategies, and considerations for lipid storage, as well as …

Chemical Identification of Interlayer Contaminants within van der Waals Heterostructures

June 24, 2019
Author(s)
Jeffrey Schwartz, ?Hsun-Jen Chuang, Matthew R. Rosenberger, Saujan V. Sivaram, Kathleen M. McCreary, B.T. Jonker, Andrea Centrone
… properties. Several commonly employed fabrication strategies rely on polymeric stamps to assemble layers of 2D … vdWHs provides valuable guidance for devising mitigation strategies (e.g., stamp cleaning or pre-/post-treatments) and …

THE INTERDEPENDENT NETWORKED COMMUNITY RESILIENCE MODELING ENVIRONMENT (IN-CORE)

June 22, 2018
Author(s)
Paolo Gardoni, John W. van de Lindt, Bruce Ellingwood, Therese P. McAllister, Jong Lee, Harvey Cutler, Daniel Cox
… resilient, and optimize resilience enhancement/planning strategies. The Interdependent Networked Community Resilience … optimize a combination of public and private investment strategies prior to and/or after an event with the goal of …
Displaying 551 - 575 of 1516
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