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Topic Area: Modeling

Displaying records 111 to 120 of 138 records.
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111. A generalized method for multiple artifacts problem in interlaboratory comparisons with linear trends
Topic: Modeling
Published: 5/22/2009
Authors: Weiping Zhang, Nien F Zhang
Abstract: A generalized statistical approach for interlaboratory comparisons with linear trends is proposed. This new approach can be applied to the general case when the artifacts are measured and reported multiple times in each participating laboratory. The ...

112. Markov Chain Analysis for Large-Scale Grid Systems
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7566
Topic: Modeling
Published: 4/20/2009
Authors: Christopher E Dabrowski, Fern Y Hunt
Abstract: In large-scale grid systems with decentralized control, the interactions of many service providers and consumers will likely lead to emergent global system behaviours that result in unpredictable, often detrimental outcomes. This possibility argues f ...

113. Study of interaction of the cyclin-dependent kinase 5 with its activator, p25 and with the p25-derived inhibitor, CIP
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7552
Topic: Modeling
Published: 1/15/2009
Authors: Antonio Cardone, Ram D Sriram, Wayne Albers, Harish C. Pant
Abstract: A high-affinity inhibitor protein called CIP, which can be produced by small truncations of p35, was earlier identified by Amin, Albers, and Pant. P35 is one of the physiological activators of cdk5, a member of the cyclin-dependent kinase family. The ...

114. Modeling of Photochemical Reactions in a Focused Laser Beam
Series: Journal of Research (NIST JRES)
Topic: Modeling
Published: 7/1/2007
Authors: Fern Y Hunt, Adolfas Kastytis Gaigalas, Lili Wang
Abstract: This paper presents a mathematical model of photodegradation of fluorophores passing through a laser beam. The beam is focused on the sample and thus the power distribution of incident light is strongly dependent on spatial location while the fluorop ...

115. Multiscale Model of Germanium Quantum Dots in Silicon
Topic: Modeling
Published: 3/1/2007
Authors: David Thomas Read, Vinod K Tewary
Abstract: Atomic displacements, strains and strain energies in the neighborhood of near-spherical, coherent germanium ¿quantum dots¿ (QD) in crystalline silicon and near a {001} Si surface have been predicted by multiscale modeling, using a combination of clas ...

116. Computable Error Bounds for Approximate Periodic Solutions of Autonomous Delay Differential Equations
Topic: Modeling
Published: 1/2/2007
Author: David E. Gilsinn
Abstract: In this paper we prove a result that says: Given an approximate solution and frequency to a periodic solution of an autonomous delay differential equation that satisfies a certain non-criticality condition, there is an exact periodic solution and fre ...

117. Cell Morphology and Migration Linked to Substrate Rigidity
Topic: Modeling
Published: 1/1/2007
Authors: Yong Ni, Martin Y Chiang
Abstract: A mathematical model, based on thermodynamics, was developed to demonstrate the substrate mechanics influences the cell morphology and migration. The mechanisms by which substrate rigidity are translated into cell morphological changes and cell movem ...

118. Approximating Periodic Solutions of Autonomous Delay Differential Equations
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7375
Topic: Modeling
Published: 11/30/2006
Author: David E. Gilsinn
Abstract: Machine tool chatter has been characterized as isolated periodic solutions or limit cycles of delay differential equations. Determining the amplitude and frequency of the limit cycle is sometimes crucial to understanding and controlling the stability ...

119. Integral Operators and Delay Differential Equations
Topic: Modeling
Published: 10/1/2006
Authors: David E. Gilsinn, Florian A Potra
Abstract: We begin this expository essay by reviewing with examples what a typical engineer already knows about statistics. We then consider a central question in engineering decision making, i.e., given a computer simulation of high-consequence systems, how ...

120. Front Matter for Special Issue of NIST Journal of Research in honor of Christoph Witzgall
Series: Journal of Research (NIST JRES)
Topic: Modeling
Published: 3/31/2006
Authors: David E. Gilsinn, Ronald F Boisvert
Abstract: This front matter for a special issue of the NIST Journal of Research contains a photograph and biography of Christoph Witzgall. It also contains a thank you paragraph by Christoph Witzgall for a symposium held in his honor. Many of the papers in thi ...

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