Zobrazeno 1 - 10
of 12
pro vyhledávání: '"James J. Hudgens"'
Publikováno v:
The Journal of Chemical Physics. 109:7907-7912
We show that changes in the relative mole fractions of Li2O and Na2O in alkali metaphosphate glasses lead to “anomalies” in the specific heat and structural relaxations. The heat capacity change between the liquid and glassy states, Δcp(Tg), at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3967a84f821bf57a72ff728f401a7dc
https://doi.org/10.1063/1.477438
https://doi.org/10.1063/1.477438
Publikováno v:
Journal of Non-Crystalline Solids. 231:89-98
Mechanical relaxation (MR) processes were investigated in single and mixed alkali (MA) metaphosphate glasses using a dynamic mechanical analyzer (DMA) over a range of frequencies, 0.1–50 Hz, and temperatures, 24–250°C. The mechanical loss modulu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4d7118a4d4e661887101ec31bba9f61
https://doi.org/10.1016/s0022-3093(98)00447-5
https://doi.org/10.1016/s0022-3093(98)00447-5
Publikováno v:
Journal of Non-Crystalline Solids. 223:21-31
Anhydrous binary phosphate glasses containing from 0 to 50 mol% Li2O or Na2O have been prepared and examined by Raman scattering spectroscopy. The unpolarized Raman spectrum of vitreous P2O5 has intense bands near 640 cm−1, attributed to the symmet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4348b22b9d696feac27a58d63d3924a9
https://doi.org/10.1016/s0022-3093(97)00347-5
https://doi.org/10.1016/s0022-3093(97)00347-5
Publikováno v:
Journal of Non-Crystalline Solids. 177:221-228
Anhydrous sodium ultraphosphate glasses were prepared with Na2O contents between 0 and 50 mol% and were characterized by several structurally sensitive spectroscopic probes to determine the nature of the phosphate tetrahedra that constitute the short
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::102ca508a764cb8c5417f139068442ab
https://doi.org/10.1016/0022-3093(94)90534-7
https://doi.org/10.1016/0022-3093(94)90534-7
Autor:
James J. Hudgens, Steve W. Martin
Publikováno v:
Journal of the American Ceramic Society. 76:1691-1696
Anhydrous glasses in the series xLi2O + (1 - x)P2O5 have been prepared and characterized in the range 0 ≤x≤ 0.5. FT-IR spectroscopy and glass transition temperature measurements have been used to explore the structure and a key physical property
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f47b0cbc09fc46c1b5fe6ea6cc909717
https://doi.org/10.1111/j.1151-2916.1993.tb06636.x
https://doi.org/10.1111/j.1151-2916.1993.tb06636.x
Autor:
Michael Clement Wanke, John F. Klem, Charles T. Fuller, James J. Hudgens, Sally Samora, Erik W. Young
The goal of our project was to examine a novel quantum cascade laser design that should inherently increase the output power of the laser while simultaneously providing a broad tuning range. Such a laser source enables multiple chemical species ident
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ece3fb9aebe8f9eb90a0f4d498b08ac1
https://doi.org/10.2172/900404
https://doi.org/10.2172/900404
Autor:
Suzanne Ma, Chris J. Cornelius, Kevin R. Zavadil, Cy Fujimoto, Susan M. Brozik, Joanne V. Volponi, David Ingersoll, Randy J. Shul, J. Bruce Kelley, M. J. Kelly, Jim Novak, Michael Howard Beggans, William Kent Schubert, Chad L. Staiger, Stanley H. Kravitz, Jeanne Sergeant, Todd M. Alam, James J. Hudgens, Carrie Schmidt, Jeb H. Flemming, James M. E. Harper, Christopher A. Apblett, Stephen P. Meserole, Monica Manginell, Michael A. Hickner, Andrew William Walker, Theodore T. Borek, Sarah Gretchen Rich, Daniel H. Doughty, David W. Peterson, Blake A. Simmons, Gregory A. Roberts, Jason Podgorski, Stephen Keeling Eisenbies, Patricia L. Dolan, Stephen A. Casalnuovo, Swapnil R. Chhabra, Brian R. Cherry
Christopher Apblett, Kent Schubert, Bruce Kelley, Andrew Walker, Blake Simmons, Ted Borek, Stephen Meserole, Todd Alam, Brian Cherry, Greg Roberts, Jim Novak, Jim Hudgens, Dave Peterson, Jason Podgorski, Susan Brozik, Jeb Flemming, Stan Kravitz, Davi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ee0625ee1650e0671282b3cb55d52b6
https://doi.org/10.2172/876287
https://doi.org/10.2172/876287
Autor:
Charles T. Fuller, Larry L. Stephenson, Michael Clement Wanke, Michael A. Mangan, Erik W. Young, Robert J. Foltynowicz, James J. Hudgens, John Louis Reno, Sally Samora
There is a general lack of compact electromagnetic radiation sources between 1 and 10 terahertz (THz). This a challenging spectral region lying between optical devices at high frequencies and electronic devices at low frequencies. While technological
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce0ae99ebaaa36ad553586ae1c76c517
https://doi.org/10.2172/922747
https://doi.org/10.2172/922747
Autor:
James J. Hudgens, Walter J. Zubrzycki, Charles Alford, Terry Hargett, Gregory M. Peake, Gregory A. Vawter, Betty Salters, Ragon D. Kinney
Rotation sensors (gyros) and accelerometers are essential components for all precision-guided weapons and autonomous mobile surveillance platforms. MEMS gyro development has been based primarily on the properties of moving mass to sense rotation and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::873529def6fc66a875274f43055d79d5
https://doi.org/10.2172/809103
https://doi.org/10.2172/809103
Autor:
James J. Hudgens, Steve W. Martin
Publikováno v:
Physical review. B, Condensed matter. 53(9)
The structures of $x\mathrm{AgI}+(1\ensuremath{-}x){\mathrm{Ag}}_{2}\mathrm{O}\ifmmode\cdot\else\textperiodcentered\fi{}2{\mathrm{B}}_{2}{\mathrm{O}}_{3}$ glasses, where $0.2l~xl~0.6$, have been investigated using mid-and far-infrared spectroscopy. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46654918075972e8f964dec78ea4b508
https://pubmed.ncbi.nlm.nih.gov/9984140
https://pubmed.ncbi.nlm.nih.gov/9984140