Results 91 to 100 of about 2,016,170 (332)

Ultrabright LaB6 nanoneedle field emission electron source with low vacuum compatibility

Communications Materials
An electron source with high performance and low vacuum compatibility is urgently in demand for the electron-beam instruments. However, there exists compromise between high brightness, small energy spread, and low vacuum for the commercial electron ...
Mingkai Gou, Shuai Tang, Kai Huang, Haokun Guan, Runze Zhan, Chaolun Liang, Chengcheng Chen, Yan Shen, Shaozhi Deng   +8 more
doaj   +1 more source

An effective method for the detection of trace species demonstrated using the MetOp Infrared Atmospheric Sounding Interferometer [PDF]

Atmospheric Measurement Techniques, 2011
Fast and reliable methods for the detection of atmospheric trace species are needed for near-real-time applications including volcanic hazard avoidance.
J. C. Walker, A. Dudhia, E. Carboni
doaj   +1 more source

The Spectrum of the Night Sky Over Kitt Peak: Changes Over Two Decades

, 2010
New absolute spectrophotometry of the Kitt Peak night sky has been obtained in 2009/10, which we compare to previously published data obtained in 1988 and 1999, allowing us to look for changes over the past two decades.
Massey, Philip, Neugent, Kathryn F
core   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Quantifying the Subjective Brightness of Retroreflective Material Using Magnitude Estimations

Driving Assessment Conference 2009, 2009
Ten small patches of retroreflective material were evaluated using a method of magnitude estimation to quantify the effect of changing the coefficient of retroreflection (RA) on brightness perception. Seventeen undergraduates participated. The results show that brightness is tightly linked with RA.
Graving, Justin S, Tyrrell, Alicia A, Balk, Stacy A   +2 more
openaire   +2 more sources

Bright but slow – Type II supernovae from OGLE-IV – implications for magnitude-limited surveys [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We study a sample of 11 Type II supernovae (SNe) discovered by the OGLE-IV survey. All objects have well sampled I-band light curves, and at least one spectrum. We find that 2 or 3 of the 11 SNe have a declining light curve, and spectra consistent with other SNe II-L, while the rest have plateaus that can be as short as 70d, unlike the 100d typically ...
Poznanski, Dovi, Kostrzewa-Rutkowska, Zuzanna, Wyrzykowski, Lukasz, Blagorodnova, Nadejda   +3 more
openaire   +2 more sources

Experimental Ten-Photon Entanglement. [PDF]

Physical Review Letters, 2016
We report the first experimental demonstration of quantum entanglement among ten spatially separated single photons. A near-optimal entangled photon-pair source was developed with simultaneously a source brightness of ∼12  MHz/W, a collection efficiency ...
Xi-Lin Wang, Luo-Kan Chen, Wei Li, Heliang Huang, Chang Liu, Chao Chen, Yi-Han Luo, Z. Su, Dian Wu, Zheng-da Li, He Lu, Yi Hu, Xiao Jiang, Cheng-Zhi Peng, Li Li, Nai-Le Liu, Yu-Ao Chen, Chaoyang Lu, Jian-Wei Pan   +18 more
semanticscholar   +1 more source

Comparing galaxy populations in compact and loose groups of galaxies

, 2012
We perform a comparison of the properties of galaxies in compact groups, loose groups and in the field to deepen our understanding of the physical mechanisms acting upon galaxy evolution in different environments. We select samples of galaxies in compact
Abadi, Abazajian, Adelman-McCarthy, Baldry, Balogh, Balogh, Beers, Bernardi, Bitsakis, Blanton, Blanton, Brasseur, Choloniewski, Coenda, Coenda, Colless, Cortese, Deng, Deng, Diaferio, Dressler, Díaz-Giménez, Eke, Gerke, Goto, Gunn, H. J. Martínez, H. Muriel, Hansen, Hickson, Hickson, Huchra, Iovino, Johnson, Kawata, Larson, Lee, Limber, Lynden-Bell, Maltby, Martínez, Martínez, Martínez, Martínez, Martínez, McConnachie, McConnachie, McGee, McGee, Mendel, Mendes de Oliveira, Merchán, Merchán, Moore, Moore, Nair, Oemler, Petrosian, Rasmussen, Sandage, Sandage, Sandage, Schechter, Schlegel, Schmidt, Shen, Springel, Strateva, Strauss, Taylor, Toomre, Torres-Flores, Tovmassian, Tzanavaris, V. Coenda, von der Linden, Walker, Weinmann, Weinmann, Wilman, Yang, York, Zandivarez   +82 more
core   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

Advanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo, Shuo Qu, Shiming Gao, Xu Song   +3 more
wiley   +1 more source

Simulated Impact on LSST Data of Starlink V1.5 and V2 Satellites

The Astronomical Journal
The new Starlink V2 satellites incorporate improvements to the chassis brightness through dielectric mirrors, off-pointing solar arrays, and blackened exposed components. For the general case in which the reflectivities are initially unknown, we simulate
Phanindra Kandula, J. Anthony Tyson, Jacob Askari, Forrest Fankhauser   +3 more
doaj   +1 more source