Results 21 to 30 of about 4,452,190 (289)

Finitely Many Dirac-Delta Interactions on Riemannian Manifolds [PDF]

, 2006
This work is intended as an attempt to study the non-perturbative renormalization of bound state problem of finitely many Dirac-delta interactions on Riemannian manifolds, S^2, H^2 and H^3. We formulate the problem in terms of a finite dimensional matrix,
Abramowitz M., Alzer H., Bariş Altunkaynak, Berezin F. A., Fatih Erman, Horn Roger A., Hunag K., Jackiw R., Lebedev N. N., O. Teoman Turgut, Rosenberg S.   +10 more
core   +2 more sources

Defining Urban Boundaries by Characteristic Scales

, 2022
Defining an objective boundary for a city is a difficult problem, which remains to be solved by an effective method. Recent years, new methods for identifying urban boundary have been developed by means of spatial search techniques (e.g. CCA).
Chen, Yanguang, Li, Xiaosong, Liu, Xiaoping, Long, Yuqing, Wang, Jiejing, Zhang, Xiaohu   +5 more
core   +1 more source

Characteristic method for isentropic compression simulation

AIP Advances, 2014
A characteristic method has been developed using a Murnaghan-form isentropic equation and characteristics, which has been verified by example uses. General information of two ramp compression experiments was calculated, which matched experimental ones ...
Quanxi Xue, Zhebin Wang, Shaoen Jiang, Xisheng Ye, Jingru Liu   +4 more
doaj   +1 more source

Multi-characteristic threshold identification method for pipeline defect types

You-qi chuyun, 2020
At present, there is still a lack of effective identification methods for oil and gas pipeline surface defects. To solve this problem, based on metal magnetic memory technology, a multi-characteristic statistical identification method for the ...
Yong WAN, Yu WANG, Yong YANG, Yongshou DAI   +3 more
doaj   +1 more source

Development of a video-rate range finder using dynamic threshold method for characteristic point detection [PDF]

, 1999
This study develops a video-rate stereo range finding circuit to obtain the depth of objects in a scene by processing video signals (R, G, B, and brightness signals) from binocular CCD cameras. The electronic circuit implements a dynamic threshold method
Gofuku, Akio, Nagai, Isaku, Takeda, Nobuo, Tanaka, Yutaka   +3 more
core   +1 more source

Recovering Epipolar Geometry from Images of Smooth Surfaces

, 2012
We present four methods for recovering the epipolar geometry from images of smooth surfaces. In the existing methods for recovering epipolar geometry corresponding feature points are used that cannot be found in such images.
Kupervasser, Oleg
core   +1 more source

Fuzzy Supplier Selection Method Based on Smaller-The-Better Quality Characteristic

Applied Sciences, 2020
Many important parts of tool machines all have the important smaller-the-better (STB) quality characteristics. The important STB quality characteristics will impact on the quality of the end-product.
Chun-Min Yu, Kuen-Suan Chen, Kuei-Kuei Lai, Chang-Hsien Hsu   +3 more
doaj   +1 more source

A characteristic particle method for traffic flow simulations on highway networks

, 2012
A characteristic particle method for the simulation of first order macroscopic traffic models on road networks is presented. The approach is based on the method "particleclaw", which solves scalar one dimensional hyperbolic conservations laws exactly ...
A. Aw, A. Harten, B. Cockburn, B. Leer van, B.D. Greenshields, D. Armbruster, D. Helbing, G. Bretti, G. Bretti, G.M. Coclite, H. Holden, H. Holden, H. Holden, H.J. Payne, H.M. Zhang, M. Herty, M. Herty, M.J. Berger, M.J. Lighthill, M.R. Flynn, P.D. Lax, P.I. Richards, R. Colombo, S.K. Godunov, X.-D. Liu, Y. Farjoun, Y. Farjoun   +26 more
core   +1 more source

A Novel Adaptive Control Method Based on Continuous Characteristic Models [PDF]

Xibei Gongye Daxue Xuebao, 2018
For a class of nonlinear systems, a novel adaptive control scheme is proposed in this paper. Firstly, the continuous characteristic model is constructed, which is equivalent to its original system in output for the same input at any time.

doaj   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar, Denise M. Connolly, Ellen Kellington, Elyse Zelunka, Karla Kerrigan, Furqan Shaikh, Paul C. Nathan, Meredith S. Irwin, Sarah Cohen‐Gogo   +8 more
wiley   +1 more source