Zobrazeno 1 - 10
of 147
pro vyhledávání: '"J, Graul"'
Differential effects of air conditioning type on residential endotoxin levels in a semi-arid climate
Autor:
R. B. Cook, Bryce A. Kruman, M. C. Nelson, K. S. Weber, S. J. Myers, Robert J. Graul, Steven C. Tuttle, James D. Johnston, T. G. Hoybjerg, Ray M. Merrill
Publikováno v:
Indoor Air. 27:946-954
Residential endotoxin exposure is associated with protective and pathogenic health outcomes. Evaporative coolers, an energy-efficient type of air conditioner used in dry climates, are a potential source of indoor endotoxins; however, this association
Autor:
Ryan Nash, Ashlin E. Cowger, James D. Johnston, Robert J. Graul, K. Scott Weber, Josie A. Tueller, John D. Beard, Daniel R. Robinson, Nathan R. Hendrickson
Publikováno v:
Indoor airREFERENCES. 29(6)
Recent work suggests that evaporative coolers increase the level and diversity of bioaerosols, but this association remains understudied in low-income homes. We conducted a cross-sectional study of metropolitan, low-income homes in Utah with evaporat
Autor:
Steven C. Tuttle, Tyler J. Philipp, Chantel D. Sloan, James D. Johnston, Robert J. Graul, W. Bradford Barber, Ryan Chartier, Frank X. Weber, Vanessa L Palmer, Rebecca K. Bradshaw
Publikováno v:
Journal of Exposure Science & Environmental Epidemiology. 27:526-534
Air pollution is hypothesized to have negative impacts on infant pulmonary health because of infants' increased rates of respiration and ongoing lung development. The severity and type of impact may differ depending on elemental concentrations. We co
Publikováno v:
Laryngo-Rhino-Otologie. 92:663-666
Ob Rauchen den Riechsinn beeintrachtigt wird kontrovers diskutiert. Um eine Uberlagerung mit einer Presbyosmie zu umgehen, haben wir den Effekt von akutem und chronischem Rauchen auf das Riechvermogen ausschlieslich junger Probanden analysiert. Einge
Autor:
Carrie L. Schanie, Isabelle Fugier-Vivier, Hong Xu, Paula M. Chilton, Suzanne T. Ildstad, Amanda J. Graul-Layman, Yiming Huang, Francine Rezzoug
Publikováno v:
The Journal of Experimental Medicine
Bone marrow transplantation offers great promise for treating a number of disease states. However, the widespread application of this approach is dependent upon the development of less toxic methods to establish chimerism and avoid graft-versus-host
Autor:
F. Fedler, J. Aderhold, Takao Someya, F. Takahashi, D. Mistele, O. Semchinova, Yasuhiko Arakawa, Norihiko Kamata, H. Klausing, J. Graul
Publikováno v:
physica status solidi (c). :2658-2661
Below-gap states in plasma assisted MBE-grown GaN/AlGaN quantum well (QW) structures have been studied by two-wavelength excited photoluminescence (PL). The decrease of the PL intensity with the addition of a below-gap excitation light source of 1.17
Autor:
D. A. Kurdyukov, V. Yu. Davydov, Akio Yamamoto, I. N. Goncharuk, A. V. Sakharov, Sergei Ivanov, Akihiro Hashimoto, Alexander N. Smirnov, J. Graul, J. Aderhold, A. A. Klochikhin, Valentin V. Emtsev, V. A. Vekshin, M. V. Baidakova
Publikováno v:
physica status solidi (b). 240:425-428
We present results of a detailed study of X-ray, photoluminescence, and Raman measurements of hexagonal InN, In-rich In x Ga 1-x N (0.36 < x < 1) alloys, and InN samples annealed in oxygen.
Publikováno v:
Diamond and Related Materials. 12:1178-1181
In the present work semiconductor quarter wavelength distributed Bragg reflector (DBR) mirrors have been studied by high resolution transmission electron microscopy (HRTEM). The mirrors have been fabricated monolithically by plasma assisted molecular
Autor:
R. J. Hauenstein, O. Semchinova, F. Fedler, Sergio I. Molina, Arturo Ponce, H. Klausing, J. Graul, J. Aderhold
Publikováno v:
physica status solidi (c). :258-262
High reflectivity (>90%) distributed Bragg reflectors (DBR) have been successfully produced utilizing the AlGaN/AlN material system. We present reflectivity and XRD data of Ga-polar AlxGa1—xN/AlN Bragg reflectors grown on sapphire. High peak reflec
Autor:
Zahia Bougrioua, J. Graul, F. Fedler, H. Klausing, O.K. Semchinova, T. Rotter, M. Marso, D. Mistele, H. Roll, Ingrid Moerman
Publikováno v:
physica status solidi (a). 194:452-455
This work reports on the influence of the surface and the gate length on the performance of AlGaN/ GaN based Hetero Field Effect Transistors (HFETs). Differently NH 4 S x treated surfaces result in variation of the drain current I Dmax of more then 1