Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Gregory J. Fiechtner"'
Autor:
Gregory J. Fiechtner, Andrei Tokmakoff
This grant supported work in the Tokmakoff lab at the University of Chicago aimed at understanding the fundamental properties of water at a molecular level, and how water participates in proton transport in aqueous media. The physical properties of w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deff1dcbba4d21e88cf65c8aab521c33
https://doi.org/10.2172/1228053
https://doi.org/10.2172/1228053
Autor:
David Zimdars, Matthew W. Warmuth, James V. Rudd, Gregory J. Fiechtner, Michael S. Brown, James R. Gord
Publikováno v:
Applied Spectroscopy. 60:261-265
The use of a fiber-coupled terahertz (THz) transmitter/receiver pair for spectroscopic detection of water vapor is investigated. Transmission signals of an alumina cylinder demonstrate that the measurement approach can be applied in a windowless cera
Autor:
Rafael V. Davalos, Gregory J. McGraw, Yolanda Fintschenko, Gregory J. Fiechtner, Blake A. Simmons, Eric B. Cummings
Publikováno v:
MRS Bulletin. 31:120-124
Efficient and reliable particle separators and concentrators are needed to support a wide range of analytical functions including pathogen detection, sample preparation, high-throughput particle sorting, and biomedical diagnostics. The advent of lab-
Publikováno v:
Analytical Chemistry. 77:6798-6804
This paper presents a novel device for the dielectrophoretic manipulation of particles and cells. A two-level isotropic etch of a glass substrate was used to create three-dimensional ridge-like structures in micrometer-sized channels. Due to the insu
Autor:
Gregory J. Fiechtner, Eric B. Cummings
Publikováno v:
Journal of Chromatography A. 1027:245-257
A novel methodology to design on-chip conduction channels is presented for expansion of low-dispersion separation channels. Designs are examined using two-dimensional numerical solutions of the Laplace equation with a Monte Carlo technique to model d
Autor:
Campbell D. Carter, James R. Gord, Keith D. Grinstead, Paul M. Danehy, Viswanathan Velur-Natarajan, Gregory J. Fiechtner, Roger L. Farrow, Robert P. Lucht
Publikováno v:
AIAA Journal. 41:679-686
Measurements of temperature and CO2 concentration using dual-pump coherent anti-Stokes Raman scattering, (CARS) are described. The measurements were performed in laboratory flames,in a room-temperature gas cell, and on an engine test stand at the U.S
Autor:
James R. Gord, Gregory J. Fiechtner
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 68:543-557
The interaction of an absorption line and a resonant laser is often modeled using a spectral overlap integral. Previous investigators have modified the traditional overlap integral to obtain a dimensionless overlap integral that affords a more practi
Publikováno v:
Journal of Visualization. 2:331-342
A thorough understanding of turbulent reacting flows is essential to the continued development of practical combustion systems. Combustor codes can be validated using data such as those generated in this study of a vortex interacting with a nonpremix
Publikováno v:
Combustion and Flame. 120:549-569
Scalar and velocity measurements are reported for two turbulent jet flames of CO/H2/N2 (40/30/30 volume percent) having the same jet Reynolds number of 16,700 but different nozzle diameters (4.58 mm and 7.72 mm). Simultaneous measurements of temperat
Publikováno v:
AIAA Journal. 37:723-731
Further developments in picosecond pump/probe combustion diagnostics are described. The rate equation formalism originally used to model the pump/probe interaction is not entirely appropriate for a 2-ps interaction. For that reason, a new nonperturba