Results 121 to 130 of about 2,820,689 (381)

SL(2,C) Chern–Simons theory, a non-planar graph operator, and 4D quantum gravity with a cosmological constant: Semiclassical geometry

Nuclear Physics B, 2015
We study the expectation value of a nonplanar Wilson graph operator in SL(2,C) Chern–Simons theory on S3. In particular we analyze its asymptotic behavior in the double-scaling limit in which both the representation labels and the Chern–Simons coupling ...
Hal M. Haggard, Muxin Han, Wojciech Kamiński, Aldo Riello   +3 more
doaj   +1 more source

Archaic Sculpturings: Notes on Art, Philosophy, and Religion in Britain, 2000 BC to 900 AD [PDF]

, 1916

openalex   +1 more source

Possible Classification of the Chiral Scalar sigma-Nonet

, 1999
We recently observed the iso-singlet scalar sigma(600)-particle and the iso-doublet scalar kappa(900)-particle, through the re-analyses of pi pi- and K pi-scattering phase shifts, respectively.
Achasov, Alde, Amsler, Aston, Au, Augstin, Basdevant, Beveren, Chan, Donoghue, Endo, Gasiorowicz, Gasser, Grayer, Harada, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Jaffe, Kamiński, Kramer, Meissner, Morgan, Muneyuki Ishida, Neudatchin, Okubo, Pennington, Pich, Scadron, Schwinger, Shabalin, Shimizu, Skirme, Takamatsu, Taketani, Törnqvist, Weinberg, Weinstein   +44 more
core   +1 more source

Fluorinated Graphene‐Coated N95 Respirators for Enhanced Protection against Viral Accumulation and Transmission

Advanced Engineering Materials, EarlyView.
We develop a one‐step spray coating approach to coat the fluorinated graphene (FG) nanosheet onto the N95 respirators. The spray‐coated superhydrophobic N95 respirators can effectively repel respiratory droplets off instantaneously and prevent SARS‐CoV‐2 virus accumulation on the surface.
Fengjie He, Jiongyu Zhang, Shengjie Zhai, Changchun Liu, Hui Zhao   +4 more
wiley   +1 more source

Demonstration der neuen Haag-Streit Spaltlampe 900 [PDF]

, 1959
Th. Schmidt
openalex   +1 more source

Microstructure, Mechanical Properties, and Antibacterial Performance of Novel Fe‐Mn‐Zn Nanocrystalline Alloys Produced by Mechanical Alloying

Advanced Engineering Materials, EarlyView.
This article presents the development of Fe‐Mn‐Zn nanocrystalline alloys (0–9 wt% Zn) by mechanical alloying and subsequently hot pressing. Their microstructure, density, hardness, wear resistance, corrosion behavior, and antibacterial properties are systematically examined.
Ilker Emin Dag, Funda Kilic, Mrutyunjay Panigrahi, Baris Avar   +3 more
wiley   +1 more source

L’hégémonie du consommateur, vers une rénovation de la science économique, par BERNARD LAVERGNE. Un vol., 5½ po. x 9, broché, 364 pages. — Presses Universitaires de France 108, blvd Saint-Germain, Paris, 1958. (900 frs) [PDF]

, 1959
Camille Martin
openalex   +1 more source

A reliable liquid helium detector [PDF]

, 1972
Detector and indicator system, utilizing commercial perforated germanium cryogenic thermometer as level sensor containing adjustable level discriminator with indicators, operates reliably over pressure range from 50 to 900 mm Hg without electronic ...
Krawczonek, W. M., Stephenson, B.
core   +1 more source

Coercivity Improvement in Ce‐Containing (Nd,Pr)‐Fe‐B‐Based Sintered Magnets by Application of the 2‐Powder Method

Advanced Engineering Materials, EarlyView.
This study investigates the magnetic properties and microstructures of 2PM‐manufactured Ce‐containing (Nd,Pr)‐Fe‐B magnets. The addition of Nd and Dy significantly enhances coercivity by 25% and 81%, respectively, attributed to core‐shell structures.
Chi‐Chia Lin, Konrad Opelt, Jürgen Dieter Rossa, Fernando Maccari, Songhak Yoon, Jürgen Gassmann, Oliver Gutfleisch   +6 more
wiley   +1 more source

When the work gets hot—900°C. hot—try VYCOR® labware [PDF]

, 1959

openalex   +1 more source