Results 81 to 90 of about 114,645 (204)

Hubble Space Telescope Near-Ultraviolet Spectroscopy of Bright CEMP-s Stars

, 2015
We present an elemental-abundance analysis, in the near-ultraviolet (NUV) spectral range, for the bright carbon-enhanced metal-poor (CEMP) stars HD196944 (V = 8.40, [Fe/H] = -2.41) and HD201626 (V = 8.16, [Fe/H] = -1.51), based on data acquired with the ...
Abate, Carlo, Aoki, Wako, Beers, Timothy C., Bolte, Michael, Cowan, John J., Filler, Dan, Frebel, Anna, Hansen, Terese, Imig, Julie A., Ivans, Inese I., Lawler, James E., Placco, Vinicius M., Roederer, Ian U., Schatz, Hendrik, Smith, Verne V., Sneden, Christopher, Sobeck, Jennifer S.   +16 more
core   +1 more source

Performance Comparison of Surface Sensitizers for Diode Laser Powder Bed Fusion of Polyamide 12

Advanced Engineering Materials, EarlyView.
Laser‐generated nanoparticles transform standard PA12 powders into high‐performance, dye‐free feedstocks for diode laser 3D printing. Despite identical absorbance at 808 nm, CuS, LaB6, and CB coatings reveal striking differences in fusion and strength—unlocking new design space for recyclable, industrial‐grade polymers.
Michael Willeke, Alexander Sommereyns, Simon Leupold, Arne Lüddecke, Arno Kwade, Nick Hantke, Jan T. Sehrt, Michael Schmidt, Anna R. Ziefuss, Stephan Barcikowski   +9 more
wiley   +1 more source

Cooling and squeezing via quadratic optomechanical coupling

, 2010
We explore the physics of optomechanical systems in which an optical cavity mode is coupled parametrically to the square of the position of a mechanical oscillator.
A. Nunnenkamp, D. F. Walls, J. G. E. Harris, K. Børkje, M. I. Dykman, M. I. Dykman, S. M. Girvin   +6 more
core   +1 more source

Real‐Time Characterization of Polypropylene Jet Dynamics in Melt Electrospinning Using Laser Diffraction and Image Analysis

Advanced Engineering Materials, EarlyView.
This study uses real‐time laser diffraction image analysis to quantify fiber diameter changes and whipping behavior from the nozzle to the collector under varying electric field conditions. By capturing diffraction (scattering) intensity changes and bending angles, melt jet and whipping behavior are accurately assessed, supporting melt electrospinning ...
Jihwan Lim, Eunji Moon, Minseo Kim, Han Seong Kim   +3 more
wiley   +1 more source

Optical Sum Rule in Finite Bands

, 2006
In a single finite electronic band the total optical spectral weight or optical sum carries information on the interactions involved between the charge carriers as well as on their band structure.
A. Abanov, A. Damascelli, A. Georges, A. Hosseini, A. Knigavko, A. Knigavko, A. Knigavko, A. Knigavko, A. Toschi, A. Toschi, A.E. Karakozov, A.F. Santander-Syro, A.F. Santander-Syro, A.F. Santander-Syro, A.F. Santander-Syro, A.J. Millis, A.V. Puchkov, B. Valenzuela, B.I. Halperin, B.P. Stojkovic, C.C. Homes, C.M. Varma, C.M. Varma, D.A. Bonn, D.B. Romero, D.N. Aristov, D.N. Aristov, D.N. Basov, E. Capelutti, E. Capeppelluti, E. Cappelluti, E. Schachinger, E. Schachinger, E. Schachinger, E. Schachinger, E. Schachinger, E. Schachinger, E. Schachinger, E.H. Kim, E.J. Nicol, F. Doğan, F. Marsiglio, G. Deutscher, G. Grimaldi, H. Matsui, H.J.A. Molegraaf, I. Affleck, I.F. Herbut, J. Halbritter, J. P. Carbotte, J.-X. Zhu, J.E. Hirsch, J.E. Hirsch, J.L. Tallon, J.P. Carbotte, J.P. Carbotte, J.P. Carbotte, K.G. Sandeman, L. Benfatto, L. Benfatto, L. Benfatto, L. Benfatto, M. Franz, M. Ortolani, M. Randeria, M. Tinkham, M.A. Quijada, M.C. Nuss, M.J. Graf, N. Kumar, N.-J. Kwon, P.J. Hirschfeld, Q.H. Wang, R. Gerami, R. Hlubina, R. Kubo, R.A. Ferrell, S. Chakravarty, S. Chakravarty, S. Chakravarty, S. Chakravarty, S. Chakravarty, S. Tewari, S.-F. Lee, S.M. Broun, T. Eckl, T. Valla, T. Xiang, T.K. Kopeć, Th.A. Maier, V.J. Emery, W. Kim, W. Kim, W. Shaw, W.C. Wu, X. Yang   +95 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

New Developments in the Field of Production and Application of Multi‐Material Wire Arc Additive Manufacturing Components: A Review

Advanced Engineering Materials, EarlyView.
The utilization of direct energy deposition (DED)‐arc additive manufacturing processes in industrial applications is increasing, and these processes have the potential for multi‐material applications. This work provides a overview of the state of research in DED‐arc made functional graded structures, to establish a link to potential industrial ...
Kai Treutler, Volker Wesling
wiley   +1 more source

High‐Resolution Reverse Offset Printed Electroluminescent Multipixel Arrays for Scalable Future Wearable Displays

Advanced Engineering Materials, EarlyView.
This study explores the effects of pixel size and spacing when fabricating electroluminescent (EL) multipixel displays. COMSOL simulations identify the impact of pixel dimensions and spacing on electric field distribution and lighting efficiency. Flexible, high‐resolution EL pixel arrays are reverse offset printed, achieving a 96% reduction in pixel ...
Huanghao Dai, Yuxin Xia, Steve Beeby, Russel Torah   +3 more
wiley   +1 more source

Comparative Study of Experimental Methods for Measuring Thermal Properties of 100Cr6 Steel Powders

Advanced Engineering Materials, EarlyView.
This study investigates the thermal properties of 100Cr6 steel in both bulk and powder forms. Measuring the very low thermal conductivity typically exhibited by powders poses significant challenges. To address this, two novel measurement techniques—temperature gradient and finite laser pulse response—are introduced and evaluated by comparison with the ...
Junsheng Zhuo, Hagen P. Kohl, Dongmei Liu, Lisa Matthäus, Arne Bochmann, Aaron Berger, Sebastian Weber, Stefan Nolte, Stephanie Lippmann   +8 more
wiley   +1 more source

Key Trends and Insights in Smart Polymeric Skin Wearable Patches

Advanced Engineering Materials, EarlyView.
Intelligent polymers, which respond to various physical and biological stimuli, are explored for the development of skin wearable patches in biomedical applications. Smart polymers, also known as intelligent or stimuli‐responsive polymers, play a crucial role in the development of advanced wearable patches due to their versatility and softness.
Sergio J. Peñas‐Núñez, Rajat Rai, Miryam Criado‐Gonzalez   +2 more
wiley   +1 more source