Zobrazeno 1 - 10
of 26
pro vyhledávání: '"N. P. Ostrom"'
Publikováno v:
Biogeosciences, Vol 21, Pp 4549-4567 (2024)
Nitrous oxide (N2O) is a potent greenhouse gas and the most significant anthropogenic ozone-depleting substance currently being emitted. A major source of anthropogenic N2O emissions is the microbial conversion of fixed nitrogen species from fertiliz
Externí odkaz:
https://doaj.org/article/655d272b553f4dd5ad913cc419f0f0f3
Publikováno v:
Biogeosciences, Vol 15, Pp 3873-3882 (2018)
Soil microbial processes, stimulated by agricultural fertilization, account for 90 % of anthropogenic nitrous oxide (N2O), the leading source of ozone depletion and a potent greenhouse gas. Efforts to reduce N2O flux commonly focus on reducing fer
Externí odkaz:
https://doaj.org/article/3b9ed7d6e1ba476a89acc2ff31fb2dbd
Publikováno v:
Biogeosciences, Vol 15, Pp 2891-2907 (2018)
Recent global water quality crises point to an urgent need for greater understanding of cyanobacterial harmful algal blooms (cHABs) and their drivers. Nearshore areas of Lake Erie such as Sandusky Bay may become seasonally limited by nitrogen (N)
Externí odkaz:
https://doaj.org/article/40f8ba7349d84db2a847e481792c2744
Autor:
H. A. Dugan, P. T. Doran, B. Wagner, F. Kenig, C. H. Fritsen, S. A. Arcone, E. Kuhn, N. E. Ostrom, J. P. Warnock, A. E. Murray
Publikováno v:
The Cryosphere, Vol 9, Iss 2, Pp 439-450 (2015)
Lake Vida, located in Victoria Valley, is one of the largest lakes in the McMurdo dry valleys and is known to contain hypersaline liquid brine sealed below 16 m of freshwater ice. For the first time, Lake Vida was drilled to a depth of 27 m. Below 21
Externí odkaz:
https://doaj.org/article/6e67db19b1a243c898f30986d7d2c06b
Publikováno v:
Journal of Display Technology. 1:112-117
Developments of the past several years in the technology of microcavity plasma devices having characteristic dimensions of 10-100 /spl mu/m suggests their applicability to the next generation of active and passive displays. Two examples of device str
Publikováno v:
Journal of Physics D: Applied Physics. 38:1644-1648
Selected highlights in the recent development of microplasma devices are reviewed with emphasis on large arrays of Si-based hybrid plasma/semiconductor pixels. Arrays of 40 000 (200 x 200) pixels, excited by sinusoidal ac waveforms at frequencies of
Autor:
Clark J. Wagner, S. T. McCain, N. P. Ostrom, Sung-Jin Park, C. Jensen, David Wilcox, Jack Chen, P. Von Allmen, James Gary Eden, Bruce A. Vojak, Frederic Zenhausern, Che Yu Liu, J. J. Ewing, Daniel J. Sadler
Publikováno v:
Journal of Physics D: Applied Physics. 36:2869-2877
Recent advances in the development of microplasma devices fabricated in a variety of materials systems (Si, ceramic multilayers, and metal/polymer structures) and configurations are reviewed. Arrays of microplasma emitters, having inverted pyramidal
Publikováno v:
Optical and Quantum Electronics. 34:1031-1044
The design, construction, and operating characteristics of a pulsed, transverse discharge-pumped HgBr laser, capable of operation at pulse repetition frequencies as high as 100 Hz, are presented. Having an active length of 53 cm, this laser system is
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 8:139-147
The optical and electrical characteristics of microdischarge devices and arrays fabricated in semiconductors and metal/polymer structures are described. Devices as small as (10 /spl mu/m)/sup 2/ in emitting area (nanoliters in volume) and arrays as l
Autor:
N. P. Ostrom, Frederic Zenhausern, Bruce A. Vojak, Manny Oliver, James Gary Eden, P. Von Allmen, C. Jensen, S. T. McCain
Publikováno v:
Applied Physics Letters. 82:2562-2564
Arrays of cylindrical microdischarge devices, ∼200 μm in diameter, have been fabricated with internally recessed annular electrodes in multilayer ceramic structures and operated both continuously and with pulsed excitation in the rare gases at pre