Results 101 to 110 of about 117,839 (311)
Fingerprint Singular Point Detection Using Orientation Field Reliability [PDF]
, 2011 Singular point detection is the most important step in Automatic Fingerprint Identification System (AFIS) and is used in fingerprint alignment, fingerprint matching, and particularly in classification.
Ravinder Kumar +2 more
core +1 more source
Description of the structure of singular spectrum for Friedrichs model operator near singular point
International Journal of Mathematics and Mathematical Sciences, 2001 The study of the point spectrum and the singular continuous one is reduced to investigating the structure of the real roots set of an analytic function with positive imaginary part M(λ).
Serguei I. Iakovlev
doaj +1 more source
FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
FEBS Open Bio, EarlyView.Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
wiley +1 more source
Indefinite Hamiltonian systems whose Titchmarsh–Weyl coefficients have no finite generalized poles of non-positive type [PDF]
, 2013 The two-dimensional Hamiltonian system (*) y'(x)=zJH(x)y(x), x∈(a,b), where the Hamiltonian H takes non-negative 2x2-matrices as values, and $J:= \begin{pmatrix} 0 & -1 \\ 1 & 0 \end{pmatrix}$, has attracted a lot of interest over the past decades ...
Harald Woracek +3 more
core +1 more source
Singular perturbations of finite rank. Point spectrum [PDF]
, 1997 Знайдено необхідні та достатні умови виникнення додаткового точкового спектра при сингулярних збуреннях скінченного рангу.We establish necessary and sufficient conditions for the appearance of an additional point spectrum under singular perturbations of ...
Самойленко, О.В. +1 more
core +2 more sources
Anisotropic media with singular slowness surfaces
Геофизический журналIt is proved that if an anisotropic medium has an open set of singular directions, then this medium has two slowness surfaces that completely coincide. The coinciding slowness surfaces form one double singular slowness surface.
Yu.V. Roganov, A. Stovas, V.Yu. Roganov
doaj +1 more source
FEBS Open Bio, EarlyView.Despite frogs avoiding low temperatures, examination of four salamander species revealed that none avoided cold and all possessed cold tolerance. Functional analysis of TRPM8, a cold sensor, showed that all salamander TRPM8s had lost their cold sensitivity.
Tadahiro Sawao +3 more
wiley +1 more source
A distributional approach to fragmentation equations [PDF]
, 2011 We consider a linear integro-di®erential equation that models multiple fragmentation with inherent mass-loss. A systematic procedure is presented for constructing a space of generalised functions Z0 in which initial-value problems involving singular ...
Lamb, Wilson, Mcbride, Adam
core
Computing normal vectors and derivatives at regular and singular points of parametric surfaces
Омский научный вестникThe paper describes a generalization of the Weingarten formulae to find the partial derivatives of arbitrary order of a unit surface normal vector at a given point on a parametric surface. It also proposes methods for computing the normal vectors and its
A. A. Zakharov
doaj +1 more source