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Experimental results are presented for a well-characterized, droplet-laden homogenous turbulent flow field around a cylindrical obstacle. Liquid agent transport was investigated around an unheated and heated cylinder under ambient conditions. Results for
The main goal of this study was to investigate the benefits possible for finned tube refrigerant evaporators when refrigerant distribution was precisely controlled to produce a desired equal superheat in each circuit. This goal was accomplished by
Rick D. Davis, Jeffrey W. Gilman, David L. VanderHart
Under injection molding conditions, typical of industrial processing, in situ polymerized montmorillonite/polyamide 6 nanocomposites significantly degraded, producing a four-fold increase in -caprolactam (monomer) content and a significant reduction in
This investigation compares the energy consumption ratings obtained for refrigerators using the Association of Home Appliance Manufacturers (AHAM) HRF-1 test procedure, as adopted by the United States Department of Energy (DOE), and the International
An experimental study is presented to determine the influence of liquid pool temperature on splashing behavior. Water droplets with initial diameter of 3.1 mm 0.1 mm impacted a water pool 40 mm in depth. The impaction process was recorded using a high
P E. Mlakar, D O. Dusenberry, J R. Harris, G A. Haynes, Long Phan, M A. Sozen
Following the September 11 crash at the Pentagon of an airliner commandeered by terorists, the American Society of Civil Engineering established a building performance study team to examine the damaged structure and make recommendations for the future. The
The Virtual Cement and Concrete Testing Laboratory (VCCTL) Consortium was formed in January 2001. Headquartered in the Building and Fire Research Laboratory (BFRL) at the National Institute of Standards and Technology (NIST), the consortium originally
This NISTIR serves as the user's manual for Version 3.0 of the Virtual Cement and Concrete Testing Laboratory (VCCTL). Using the VCCTL, a user may create starting microstructures of cement (gypsum, fly ash, etc.) particles in water, hydrate the
Takashi Kashiwagi, A B. Morgan, Joseph M. Antonucci, Mark R. VanLandingham, Richard H. Harris Jr., W H. Awad, John R. Shields
MMA, poly(metheylmethacrylate), nanocomposites were made by in situ radical polymerization of MMA, methylmethacrylate, with colloidal silica (ca. 12 nm) to study the effects of nanoscale silica particles on the physical properties and flammability
PCPS is an abbreviation for the Protective Clothing Performance Simulator, a software tool provided to help predict the thermal response of multi-layered fabrics to conditions that might be experienced during a fire. A proper analysis, and therefore
In work sponsored by the National Institute of Standards and Technology and the Next-Generation Fire Suppression Technology Program, our current research effort is directed toward the continued study of known promising as well as several new chemical
The ability to predict temperattures developed in compartment fires is of great significance to the fire protection professional. There are many uses for the knowledge of compartment fire temperatures, including the prediction of (1) the onset of hazardous
The National Institute of Standards and Technology (NIST) announced its 24-month building and fire safety investigation of the World Trade Center (WTC) disaster on August 21, 2002.NIST also released the final plan for its investigation at the same time
S I. Stoliarov, P R. Westmoreland, Marc R. Nyden, Glenn P. Forney
The theory and implementation of Reactive Molecular Dynamics (RMD) are presented in the context of providing an overview of our own RMD computer code, MD_REACT. The capabilities of RMD and its potential use as a tool for investigating the mechanisms of
Mechanics and materials are essential elements in all of the transcendent technologies that are the primary drivers of the twenty first century and in the new economy. The transcendent technologies include nanotechnology, microelectronics, information
The first priority for fire and rescue service personnel and all emergency first responders when responding to any call is the safety of all emergency personnel. Emergency first responders have been called to every recent terrorist attack in North America
Chiara F. Ferraris, Vincent A. Hackley, A Aviles, C E. Buchanan
Particle size distribution (PSD) is an essential property of cement. The only standard method to measure the PSD of cement, namely ASTM C115 [ ] is limited in scope; this standard describes a method for determining fineness with a lower size detection
This paper examines the effectiveness of nonlinear static procedures for seismic response analysis of buildings. Nonlinear static procedures are recommended in FEMA 273 (Guidelines for Seismic Rehabilitation of Buildings) for assessing the seismic
A comparative study is presented of the estimated wind load capacities of low-rise steel building frames based on loading patterns (magnitude and distribution) established from aerodynamic databases on the one hand, and on patterns specified in the ASCE 7
This work falls within the scope of a genera! problem regarding the assessment of concrete manufactured from waste materials. The main objective is to study the long-term evolution of these materials during the leaching process, using the cellular
Kuldeep R. Prasad, S L. Olson, Y N. Nakamura, K K. Nishizawa, K. Ito, Takashi Kashiwagi
A three-dimensional, time-dependent model is developed describing ignition and subsequent transition to flame spread over a thermally thin cellulosic sheet heated by external radiation in a microgravity environment. A low Mach number approximation to the