Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by: Cary Presser (Assoc)

Displaying 26 - 50 of 184

Thermochemical Characterization of Biodiesel Fuels using a Novel Laser-Heating Technique

August 4, 2015

Author(s)

Cary Presser, Ashot Nazarian, Thomas J. Bruno, Jacolin A. Murray, John L. Molloy

A state-of-the-art, rapid laser-heating technique, referred to as the laser-driven thermal reactor, was used to characterize National Institute of Standards and Technology Standard Reference Material (SRM) diesel and biodiesel fuels. Also described are the

Forensic methodology for the thermochemical characterization of ANNM and ANFO mixture homemade explosives

April 9, 2015

Author(s)

Ashot Nazarian, Cary Presser

Experimental measurements were carried out using a novel laser-heating technique with the most commonly used HME mixture materials, i.e., ammonium nitrate/nitromethane and ammonium nitrate/No. 2 diesel fuel oil, for different compositions, initial masses

Filter Material Effects on Particle Absorption Characteristics

February 10, 2014

Author(s)

Cary Presser, Joseph M. Conny, Ashot Nazarian

The absorption coefficient and mass specific absorption cross section were determined for nigrosin-laden quartz, Teflon, and polycarbonate filters in inert surroundings at different steady-state temperatures and particle mass loadings. The objective was to

Thermochemical Characterization of Materials using a Novel Laser-Heating Technique

January 13, 2014

Author(s)

Cary Presser

This article reviews the application of a novel rapid laser-heating technique (referred to as the laser-driven thermal reactor) for characterizing multiphase, multicomponent substances. The technique provides quantitative measurements of various relevant

Forensic Analysis Methodology for Thermal and Chemical Characterization of Homemade Explosives

November 24, 2013

Author(s)

Ashot Nazarian, Cary Presser

Forensic identification of homemade explosives is critical for determining the origin of the explosive materials and precursors, and formulation procedures. Normally, the forensic examination of the pre- and post-blast physical evidence lacks specificity

Single laser pulse effects on suspended-Au-nanoparticle size distributions and morphology

April 30, 2013

Author(s)

Richard E. Cavicchi, Douglas C. Meier, Cary Presser, Suvajyoti S. Guha

Samples of suspended gold nanoparticles in the diameter range 10 nm to 100 nm were subjected to a single 7 ns pulse from a 532 nm laser to determine the effects of laser power on particle size distribution, mean size, and morphology. The experimental

Absorption Coefficient of Particle-Laden Filters using the Laser Heating: Validation with Nigrosin

January 22, 2012

Author(s)

Cary Presser

A novel laser-heating technique, referred to as the laser-driven thermal reactor, was used in conjunction with laser transmission to determine the absorption coefficient (and imaginary part of the refractive index) of aggregated particles on substrates (e

Fire Suppression

November 16, 2010

Author(s)

Cary Presser, Jiann C. Yang

Water sprinkler sprays (with relatively large droplet sizes) in residential and commercials structures are probably the most well known application of sprays in fire suppression. In more recent years, water mists (characterized by reduced droplet sizes

A Simple Method to Assess the Thermal Mechanisms Associated with a Fire Suppressant

April 1, 2010

Author(s)

Cary Presser, C Avedisian, J. Stiehl, Richard E. Cavicchi

A new screening concept is presented to evaluate the thermal effectiveness of fire suppressants (liquids and gases) for solid surface cooling (without vaporization for liquid suppressants) under well-controlled conditions. The concept is based on measuring

Thermal and Chemical Kinetic Characterization of Multiphase and Multicomponent Substances by Laser Heating

October 1, 2008

Author(s)

Ashot Nazarian, Cary Presser

A novel approach is described that determines the thermal behavior and decomposition of multiphase solid and liquid substances, such as chemical wastes, fuels, aerosol particles, and propellants through rapid and controlled heating with laser radiation

Detection of Dose Concentration in Droplets Generated by Pulmonary Drug Delivery Devices

May 21, 2008

Author(s)

Cary Presser

Using aerosol delivery devices to administer new therapeutic drugs through the pulmonary system is emerging as an efficacious way to engage several diseases. Little quantitative information on spatially or temporally resolved concentration of the drug

Droplet Size Distributions in the Spray From Commercial Fogger Type Pepper Spray Products

April 1, 2008

Author(s)

Cary Presser, Edward V. White, Alim A. Fatah

This report documents a preliminary investigation of the measurement of droplet sizes in the spray from four commercial fogger type pepper spray products. Droplet sizes were detected over the range of 2 mm to 120 mm by phase Doppler interferometry at a

Droplet Size Distributions in the Spray from Commercial 'Fogger' Type Pepper Spray Products

February 1, 2007

Author(s)

Alim A. Fatah, Cary Presser, Edward V. White

Commercial pepper sprays devices deliver a coherent liquid stream or an aerosol from a pressurized canister. It is likely that some of the droplets from the aerosol-type pepper sprays inhaled during its use to assist in subduing individuals resisting