Results 131 to 140 of about 7,242 (307)

New Arabic Records From Cairo on Supernovae 1181 and 1006

Astronomische Nachrichten, EarlyView.
ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer, H. Halm, R. Neuhäuser, D. L. Neuhäuser   +3 more
wiley   +1 more source

Hybrid analytical model for air‐gap magnetic field prediction of surface‐mounted permanent magnet motors with a quasi‐regular polygon rotor [PDF]

, 2023
Chuntao Chen, Xinzhen Wu, Xibo Yuan, Zhuang Ding, Xiaoqin Zheng   +4 more
openalex   +1 more source

CO2 Hydrogenation Over K‐Promoted Fe‐Catalysts Derived from Mg–Al–Fe Quintinite‐Like Layered Double Hydroxide Precursor

ChemCatChem, EarlyView.
Conversion of CO2 and product selectivity for the (blue) OM‐FeMgAl catalyst and the (orange) OM‐FeMgAl‐K catalyst using the conditions: H2/CO2 = 3; T = 280 °C; P = 2.07 MPa; SV = 1.5 sL/h/gcat. Time on‐stream: 188 h. Adding K increased surface basicity, promoting CO2 adsorption and CO dissociation, altering the surface C/H pool. The carburized catalyst
Raimundo Crisostomo Rabelo‐Neto, Ana Paula da Silva Grangeiro, Rita de Cássia Colman Simões, Muthu Kumaran Gnanamani, Michela Martinelli, Dali Qian, Fábio Bellot Noronha, Gary Jacobs   +7 more
wiley   +1 more source

Analysis of Singular Stress for Regular Polygonal Cavity or Rigid Inclusion under In-Plane and Out-of-Plane Loadings.

, 1995
Masayuki Shozu, Ken-ichi HIRASHIMA, Yukio Hirose   +2 more
openalex   +2 more sources

Minimal fragmentation of regular polygonal plates [PDF]

, 2014
Laércio Dias, Fernando Parisio
openalex   +1 more source

ARC Expands the DAAM1 Microexon‐Mediated Actin–RHOA/ROCK Interplay

Cytoskeleton, EarlyView.
ABSTRACT Actin cytoskeleton and its dynamics play a crucial role in synaptic function, influencing dendritic spines' structural and functional plasticity. Recent findings unveiled the significance of alternative splicing of a neural‐specific microexon in DAAM1 in modulating actin's role in synaptic processes.
Patryk Poliński, Marta Miret Cuesta, Manuel Irimia   +2 more
wiley   +1 more source

COUNTING SYMMETRIC COLOURINGS OF THE VERTICES OF A REGULAR POLYGON [PDF]

, 2014
Yevhen Zelenyuk, Yuliya Zelenyuk
openalex   +1 more source

Dimer models and conformal structures

Communications on Pure and Applied Mathematics, EarlyView.
Abstract Dimer models have been the focus of intense research efforts over the last years. Our paper grew out of an effort to develop new methods to study minimizers or the asymptotic height functions of general dimer models and the geometry of their frozen boundaries.
Kari Astala, Erik Duse, István Prause, Xiao Zhong   +3 more
wiley   +1 more source

Behavior of Two Kinds of Particles in Rotary Barrel of Regular Polygonal Cross Section with Planetary Rotation

, 2003
Yoshihiro Takahashi, Masumi KATAOKA, Masahiko UEKUSA, Yoshiaki TERUMICHI   +3 more
openalex   +2 more sources

Equivariant toric geometry and Euler–Maclaurin formulae

Communications on Pure and Applied Mathematics, EarlyView.
Abstract We first investigate torus‐equivariant motivic characteristic classes of toric varieties, and then apply them via the equivariant Riemann–Roch formalism to prove very general Euler–Maclaurin‐type formulae for full‐dimensional simple lattice polytopes.
Sylvain E. Cappell, Laurenţiu Maxim, Jörg Schürmann, Julius L. Shaneson   +3 more
wiley   +1 more source