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Topic: Chemistry
Published: 5/3/2010
Authors: Narayanan Neithalath, Dale P Bentz, Milani S Sumanasooriya
Abstract: Pervious concrete is receiving renewed interest as a sustainable construction material for parking lots, sidewalks, and low-traffic-volume roads. A key characteristic of this material is its coarse porosity, achieved by omitting the fine aggregates ...

52. ANN Model for HEMTs Constructed from Large-Signal Time-Domain Measurements
Topic: Chemistry
Published: 6/7/2002
Authors: Dominique Schreurs, Jeffrey A Jargon, Catherine A Remley, Donald C. DeGroot, Kuldip Gupta
Abstract: We develop a methodology to construct behavioral models for microwave devices from time-domain large-signal measurements. The behavioural model for the considered class of devices (microwave transistors) is defined by expressing the terminal current ...

53. Ab initio study of the mechanical and the transport properties of pure and contaminated silver nanowires
Topic: Chemistry
Published: 7/12/2013
Authors: Shmuel Barzilai, Francesca M Tavazza, Lyle E Levine
Abstract: The conductance and mechanical properties of pure and contaminated silver nanowires were studied using density functional theory (DFT) calculations. Several nanowires containing O2 on their surface were elongated along two different directions. All o ...

54. Accelerated and Natural Carbonation of Concretes with Internal Curing and Shrinkage/Viscosity Modifiers
Topic: Chemistry
Published: 1/5/2014
Authors: Alejandro Duran-Herrera, Jose Manuel Mendoza-Rangel, Edgar de los Santos Rodriguez, Francisco Vazquez, P Valdez, Dale P Bentz
Abstract: In many parts of the world, corrosion of reinforcing steel in concrete induced by carbonation of the concrete continues to be a major durability concern. This paper investigates the accelerated and natural carbonation resistance of a set of 7 concret ...

55. Accurate Determination of Trace Elements in Sediment CRMs by Instrumental Neutron Activation Analysis
Topic: Chemistry
Published: 12/1/1999
Author: D. A. Becker

56. Accurate Flow Measurement in Vacuum Processing
Topic: Chemistry
Published: 12/1/1996
Author: S A Tison

57. Acoustic Emission and Low Temperature Calorimetry Study of Freeze and Thaw Behavior in Cementitious Materials Exposed to NaCl Salt
Topic: Chemistry
Published: 11/3/2014
Authors: Yaghoob Farnam, Dale P Bentz, Allison Hampton, Jason Weiss
Abstract: This paper describes a series of experiments that were performed to assess the freeze-thaw behavior of mortar samples exposed to NaCl solutions. A low-temperature longitudinal guarded comparative calorimeter was used to perform cyclic freeze-thaw te ...

58. Activation Energies of High-Volume Fly Ash Ternary Blends: Hydration and Setting
Topic: Chemistry
Published: 7/17/2014
Author: Dale P Bentz
Abstract: Because ready-mixed concrete is placed under a wide variety of environmental conditions, the influence of temperature on the hydration reactions and the accompanying setting (hardening) process is of critical importance. While contractors are general ...

59. Additive Concentration Effects on Enantioselective Separations in Supercritical Fluid Chromatography
Topic: Chemistry
Published: 3/5/2003
Authors: Karen W Phinney, Lane C Sander
Abstract: Polar additive concentration effects in supercritical fluid chromatography were studied on two chiral stationary phases, Chirobiotic V and Chiralpak AD. Two basic additives, isopropylamine and triethylamine, were incorporated into the methanol modif ...

60. Adenylyl cyclase in Mycobacterium tuberculosis H3 7Rv- A Possible Virulence Factor
Topic: Chemistry
Published: 2/9/1997
Authors: M A. Kamireddi, Prasad T Reddy

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