Results 91 to 100 of about 2,231,619 (353)

The far-infrared view of M87 as seen by the Herschel Space Observatory [PDF]

, 2010
The origin of the far-infrared emission from the nearby radio galaxy M87 remains a matter of debate. Some studies find evidence of a far-infrared excess due to thermal dust emission, whereas others propose that the far-infrared emission can be explained ...
A. Boselli, A. Dariush, A. P. Jones, Baes, Boselli, Böhringer, C. Giovanardi, C. Vlahakis, Clemens, Cortese, D. A. Garcia-Appadoo, D. Fadda, D. J. Bomans, D. Pierini, Davies, De Looze, E. Corbelli, E. M. Xilouris, G. Gavazzi, G. J. Bendo, Grossi, H. Böhringer, Haas, I. De Looze, J. Fritz, J. I. Davies, J. Verstappen, L. Cortese, L. K. Hunt, M. Baes, M. Clemens, M. Grossi, M. Pohlen, M. W. L. Smith, Meisenheimer, Pilbratt, S. Bianchi, S. di Serego Alighieri, S. Madden, S. Sabatini, S. Zibetti, Simionescu, Smith, T. M. Hughes, W. D. Cotton, Xilouris   +45 more
core   +1 more source

Sol–Gel Synthesis of Ca2.5Ag0.3Sm0.2Co4O9 Semiconducting Materials for Thermoelectric Applications in Aerospace Systems

Advanced Engineering Materials, EarlyView.
Ca2.5Ag0.3Sm0.2Co4O9 semiconductor materials are synthesized and produced in this study using the sol–gel and cold pressing techniques for thermoelectric generator applications. As template samples are added, the Seebeck coefficient and power factor values rise, peaking at 800 °C for Ca2.5Ag0.3Sm0.2Co4O9 at 274.47 μV K−1 and 0.58 mW mK−2, respectively.
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source

AKARI infrared imaging of reflection nebulae IC4954 and IC4955

, 2007
We present the observations of the reflection nebulae IC4954 and IC4955 region with the Infrared Camera (IRC) and the Far-Infrared Surveyor (FIS) on board the infrared astronomical satellite AKARI during its performance verification phase.
Doi, Yasuo, Fujishiro, Naofumi, Fujiwara, Hideaki, Ishihara, Daisuke, Ita, Yoshifusa, Kaneda, Hidehiro, Kataza, Hirokazu, Kii, Tuneo, Kim, Woojung, Makiuti, Sin'itirou, Matsuhara, Hideo, Matsumoto, Toshio, Murakami, Hiroshi, Nakagawa, Takao, Ohyama, Youichi, Okada, Yoko, Onaka, Takashi, Oyabu, Shinki, Sakon, Itsuki, Serjeant, Stephen, Shibai, Hiroshi, Suzuki, Toyoaki, Takagi, Toshinobu, Tanabe, Toshihiko, Uemizu, Kazunori, Ueno, Munetaka, Usui, Fumihiko, Wada, Takehiko, Watarai, Hidenori   +28 more
core   +1 more source

Toughness of Confined Auxetic Foams

Advanced Engineering Materials, EarlyView.
Auxetic (negative Poisson's ratio) materials offer benefits such as impact mitigation, thermal insulation, vibration damping, and reduced shear strain, although their fracture mechanics are largely unexplored. This study investigates damage initiation and propagation in confined re‐entrant auxetic foams from polyurethane via experimental ...
Adrianos E. F. Athanasiadis, Oliver Duncan, Michal K. Budzik, Marcelo A. Dias   +3 more
wiley   +1 more source

INFRARED IMAGING DEVICES IN INFRARED MEDICAL RADIOGRAPHY [PDF]

Annals of the New York Academy of Sciences, 1964
The word “thermograph” often used to describe both an instrument and the product of that instrument has as its roots the Greek words thermos and gruphos. The latter means a sketch or pictorial representation; thus, the graphic arts, scientific graphs, photographs, etc. The former relates to heat or temperature.
openaire   +4 more sources

Direct Electron Detection Electron Energy‐Loss Spectroscopy: Speeding Up 2D Analytical In Situ Transmission Electron Microscopy for Aluminum Alloys

Advanced Engineering Materials, EarlyView.
Scanning transmission electron microscopy imaging techniques are an essential tool to document dynamic developments, such as precipitation in aluminum alloys, during in situ heating experiments using transmission electron microscopy. However, in many cases, chemical information is required to interpret complex nanoscale processes.
Evelin Fisslthaler, Martina Dienstleder, Judith Lammer, Moritz Theissing, Daniel Knez   +4 more
wiley   +1 more source

Signal-to-Noise Ratio Model and Imaging Performance Analysis of Photonic Integrated Interferometric System for Remote Sensing

Remote Sensing
Photonic integrated interferometric imaging systems (PIISs) provide a compact solution for high-resolution Earth observation missions with stringent size, weight, and power (SWaP) constraints.
Chuang Zhang, Yan He, Qinghua Yu
doaj   +1 more source

What’s Cool About Hot Stars? Cataclysmic Variables in the Mid-Infrared [PDF]

, 2009
We review recent results from mid-infrared observations of cataclysmic variables with the Spitzer Space Telescope. In general, these observations have revealed mid-infrared excesses, above the level expected from the stellar and accretion components, in ...
Brinkworth, C., Ciardi, D., Hoard, D. W., Howell, S., Kafka, S., Szkody, P., Wachter, S.   +6 more
core  

Infrared spectroscopic diagnostics for Active Galactic Nuclei

, 2007
Infrared spectroscopy in the mid- and far-infrared provides powerful diagnostics for studying the emission regions in active galaxies. The large variety of ionic fine structure lines can probe gas conditions in a variety of physical conditions, from ...
Spinoglio, Luigi
core   +1 more source

Study of the Effect of Process Parameters and Heat Treatment on the Formation and Evolution of Directed Energy Deposition of IN718‐CuCrZr Interface

Advanced Engineering Materials, EarlyView.
Bimetallic structures of Inconel 718 and CuCrZr are fabricated using the laser powder directed energy deposition method. The study reveals a strong dependence of interface characteristics such as width and interfusion on processing and heat treatment strategies.
Hamidreza Javidrad, Bahattin Koc
wiley   +1 more source