Results 21 to 30 of about 44,379 (259)

A New Approach for Deviation Modeling in Compressors: Sensitivity-Correlated Principal Component Analysis

Aerospace, 2023
Studies on the geometry variation-related compressor uncertainty quantification (UQ) have often used dimension reduction methods, such as the principal component analysis (PCA), for the modeling of deviations.
Mingzhi Li, Xianjun Yu, Dejun Meng, Guangfeng An, Baojie Liu   +4 more
doaj   +1 more source

Factorizations in Geometric Lattices

Axioms
This article investigates atomic decompositions in geometric lattices isomorphic to the partition lattice Π(X) of finite set X, a fundamental structure in lattice theory and combinatorics.
Alex Aguila, Elvis Cabrera, Jyrko Correa-Morris   +2 more
doaj   +1 more source

Central Conics in ${\mathbb{H}}^2$ Are Fibers over the Group of Steiner Conics

Geometry
We provide an intrinsic construction of the central conics in the real hyperbolic plane H2, whereby each conic C is the composition of a unique pair of Steiner conics (those generated by collineations).
John Sarli
doaj   +1 more source

Incidence geometry in a Weyl chamber II: SL

Advances in Applied Mathematics, 2020
We study the central hyperplane arrangement whose hyperplanes are the vanishing loci of the weights of the first and the second fundamental representations of $\mathfrak{gl}_n$ restricted to the dual fundamental Weyl chamber. We obtain generating functions that count flats and faces of a given dimension.
Mboyo Esole, Steven Glenn Jackson, Ravi Jagadeesan, Alfred G. Noël   +3 more
openaire   +7 more sources

Intricacies of Opening Geometry Detection in Terrestrial Laser Scanning: An Analysis Using Point Cloud Data from BLK360

Remote Sensing
This study investigates the use of terrestrial laser scanning (TLS) in urban excavation sites, focusing on enhancing ground deformation detection by precisely identifying opening geometries, such as gaps between pavement blocks. The accuracy of TLS data,
Jinman Jung, Taesik Kim, Hong Min, Seongmin Kim, Young-Hoon Jung   +4 more
doaj   +1 more source

Fabrication of Multilayer Cu/Ni Systems with Nanometric Layers by Electrolysis Method [PDF]

Archives of Metallurgy and Materials, 2018
The paper presents research results of multilayer systems composed of alternate Cu/Ni layers. The layers thickness obtained by the galvanic treatment was determined by using the transmission electron microscopy and X-ray diffraction method in the grazing
M. Spilka, R. Babilas, W. Ratuszek, J. Kowalska, K. Matus   +4 more
doaj   +1 more source

Implicit Characterizations of Smooth Incidence Geometries [PDF]

Geometriae Dedicata, 2000
Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)
Bödi, Richard, Immervoll, Stefan
openaire   +2 more sources

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Development of dual-beamline photoelectron momentum microscopy for valence orbital analysis

Journal of Synchrotron Radiation
The soft X-ray photoelectron momentum microscopy (PMM) experimental station at the UVSOR Synchrotron Facility has been recently upgraded by additionally guiding vacuum ultraviolet (VUV) light in a normal-incidence configuration.
Kenta Hagiwara, Eiken Nakamura, Seiji Makita, Shigemasa Suga, Shin-ichiro Tanaka, Satoshi Kera, Fumihiko Matsui   +6 more
doaj   +1 more source

FEMORAL NECK FRACTURES – BIOLOGICAL ASPECTS AND RISK FACTORS. [PDF]

Journal of IMAB, 2014
The strength of the bone is a function of its mechanical properties and bone geometry. The probability of the occurrence of femoral neck fracture is associated with both the trauma mechanism and magnitude of the acting forces as well as with the bone ...
Orlin Filipov
doaj   +1 more source