Results 41 to 50 of about 340,877 (291)

Driving Waveform Design of Electrowetting Displays Based on a Reset Signal for Suppressing Charge Trapping Effect

Frontiers in Physics, 2021
Electrowetting display (EWD) device is a new type of reflective optoelectronic equipment with paper-like display performance. Due to the oil backflow phenomenon, it is difficult for pixels to be maintained a stable aperture ratio, so the grayscale of ...
Taiyuan Zhang, Yong Deng
doaj   +1 more source

Numerical Simulations of Pinhole and Single Mode Fibre Spatial Filters for Optical Interferometers [PDF]

, 2001
We use a numerical simulation to investigate the effectiveness of pinhole spatial filters at optical/IR interferometers and to compare them with single-mode optical fibre spatial filters and interferometers without spatial filters.
Baldwin, Baldwin, Beckers, Buscher, Buscher, Coudé du Foresto, D_f. Buscher, Dainty, Fried, Hutter, J.W. Keen, Jeunhomme, McGlamery, P.J. Warner, Prasad, Roddier, Rohloff, Shaklan, Wagner   +18 more
core   +2 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Near-Limb Zeeman and Hanle Diagnostics

, 2013
"Weak" magnetic-field diagnostics in faint objects near the bright solar disk are discussed in terms of the level of non-object signatures, in particular, of the stray light in telescopes.
A.D. Romanov, B. Lyot, B.A. Ioshpa, D. Socker, E. Tandberg-Hanssen, E. Tandberg-Hanssen, G. Newkirk Jr., G.M. Nikolskii, G.M. Nikolskij, G.Y. Smol’kov, H. Lin, H. Nagaoka, H. Peter, H. Zirin, I. Kim, I.S. Kim, I.S. Kim, I.S. Kim, J. Chae, J. Wagner, J.M. Malville, J.W. Harvey, O. En den, R.G. Athay, R.H. Lee, R.H. Lee, R.J. Terrile, S. Keil, S. Tomczyk, T.R. Rimmele, V.S. Bashkirtsev   +30 more
core   +1 more source

Mass-Richness relations for X-ray and SZE-selected clusters at $0.4 < z <2.0$ as seen by $Spitzer$ at 4.5$\mu$m [PDF]

, 2017
We study the mass-richness relation of 116 spectroscopically-confirmed massive clusters at $0.4 < z < 2$ by mining the $Spitzer$ archive. We homogeneously measure the richness at 4.5$\mu$m for our cluster sample within a fixed aperture of $2^{\prime ...
Chary, R., Ettori, S., Krick, J., Rettura, A.   +3 more
core   +3 more sources

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Investigation on the ventilation impact of enclosed-type teaching buildings under different aperture ratios and wind directions

Journal of Asian Architecture and Building Engineering
Enclosed-type of educational buildings, which are commonly seen in the campus nowadays, suffer from poor natural ventilation, causing higher energy consumption from mechanical ventilation as well as poorer indoor air quality.
Mo Li, Yao Li, Bingyi Zhang, Linzi Tao
doaj   +1 more source

CASSIS: The Cornell Atlas of Spitzer/Infrared Spectrograph Sources. II. High-resolution observations [PDF]

, 2015
The Infrared Spectrograph (IRS) on board the Spitzer Space Telescope observed about 15,000 objects during the cryogenic mission lifetime. Observations provided low-resolution (R~60-127) spectra over ~5-38um and high-resolution (R~600) spectra over ~10 ...
Brisbin D., Brown M. J. I., C. Goes, D. J. Barry, D. W. Weedman, Díaz-Santos T., Díaz-Santos T., Farrah D., Fazio G. G., G. C. Sloan, Gonzalez-Martin O., H. W. W. Spoon, Houck J. R., J. Bernard-Salas, J. R. Houck, Kraemer K. E., Lahuis F., Lahuis F., Lahuis F., Le Floc’h E., Lebouteiller V., Lyu J., Rieke G. H., Sargsyan L., Sargsyan L., Sloan G. C., V. Lebouteiller, Weedman D. W., Werner M. W.   +28 more
core   +4 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

A Transmittance-optimized, Point-focus Fresnel Lens Solar Concentrator [PDF]

, 1984
The development of a point-focus Fresnel lens solar concentrator for high-temperature solar thermal energy system applications is discussed. The concentrator utilizes a transmittance-optimized, short-focal-length, dome-shaped refractive Fresnel lens as ...
Oneill, M. J.
core   +1 more source