1 
A description of final year nursing students' ability to recognize abnormal vital signs recordings and clinical decisionmaking processLeonard, Martha Maria January 2014 (has links)
Includes abstract. / Includes bibliographical references. / The aim of this study was to determine whether final year nursing students can recognize and respond to abnormal vital sign recordings, and to analyse their clinical decisionmaking processes.

2 
Restoration of optical coherence tomography images using stochastic methodsMezgebo, Biniyam Kahsay 12 January 2016 (has links)
Optical coherence tomography (OCT) is a rapidly growing imaging modality that produces high resolution three dimensional images that can be applied to different medical and industrial applications . Obtaining higher depth of imaging and higher imaging quality are important goals in OCT systems. One of the main factors that affects the penetration depth and imaging quality of OCT systems is the presence of noise. The depthscan photocurrent of time domain (TD) OCT system is degraded by a class of correlated and signal dependent noise. The joint probability density function of the depthscan photocurrent can be considered as Gaussian random process that is completely characterized by its second order statistics. Both the mean and the covariance functions of the depthscan photocurrent are functions of the depth variant axial reflectance of the object. We present a stable and computationally efficient OCT image restoration technique to obtain the maximum likelihood estimates of the axial reflectance of the object and to estimate the electrical noise variance. / February 2016

3 
Thermoelastic Oscillations of Anisotropic BodiesJentsch, L., Natroshvili, D. 30 October 1998 (has links) (PDF)
The generalized radiation conditions at infinity of SommerfeldKupradze type are established in the theory of thermoelasticity of anisotropic bodies. Applying the potential method and the theory of pseudodifferential equations on manifolds the uniqueness and existence theorems of solutions to the basic threedimensional exterior boundary value problems are proved and representation formulas of solutions by potential type integrals are obtained.

4 
Mixed Interface Problems of Thermoelastic PseudoOscillationsJentsch, L., Natroshvili, D., Sigua, I. 30 October 1998 (has links) (PDF)
Threedimensional basic and mixed interface problems of the mathematical
theory of thermoelastic pseudooscillations are considered for piecewise homogeneous
anisotropic bodies. Applying the method of boundary potentials and the theory of
pseudodifferential equations existence and uniqueness theorems of solutions are proved
in the space of regular functions C^(k+ alpha) and in the Besselpotential (H^(s)_(p))
and Besov (B^(s)_(p,q)) spaces. In addition to the classical regularity results
for solutions to the basic interface problems, it is shown that in the mixed interface
problems the displacement vector and the temperature are Hölder continuous with
exponent 0<alpha<1/2.

5 
Interaction between Thermoelastic and Scalar Oscillation Fields (general anisotropic case)Jentsch, L., Natroshvili, D 30 October 1998 (has links) (PDF)
Threedimensional mathematical problems of the interaction between thermoelastic
and scalar oscillation fields are considered in a general anisotropic case. An elastic
structure is assumed to be a bounded homogeneous anisortopic body occupying domain
$\Omega^+\sub\R^3$ , where the thermoelastic field is defined, while in the
physically anisotropic unbounded exterior domain $\Omega^=\R^3\\ \overline{\Omega^+}$
there is defined the scalar field. These two fields
satisfy the differential equations of steady state oscillations in the corresponding
domains along with the transmission conditions of special type on the interface
$\delta\Omega^{+}$. Uniqueness and existence theorems, for the nonresonance case, are proved
by the reduction of the original interface problems to equivalent systems of boundary
pseudodifferential equations ($\Psi DEs$) . The invertibility of the corresponding
matrix pseudodifferential operators ($\Psi DO$) in appropriate functional spaces is
shown on the basis of generalized SommerfeldKupradze type thermoradiation conditions
for anisotropic bodies. In the resonance case, the cokernels of the $\Psi DOs$ are
analysed and the efficent conditions of solvability of the transmission problems
are established.

6 
Threedimensional mathematical Problems of thermoelasticity of anisotropic BodiesJentsch, Lothar, Natroshvili, David 30 October 1998 (has links) (PDF)
CHAPTER I. Basic Equations. Fundamental Matrices. ThermoRadiation Conditions
1. Basic differential equations of thermoelasticity theory
2. Fundamental matrices
3. Thermoradiating conditions. Somigliana type integral representations
CHAPTER II. Formulation of Boundary Value and Interface Problems
4. Functional spaces
5. Formulation of basic and mixed BVPs
6. Formulation of crack type problems
7. Formulation of basic and mixed interface problems
CHAPTER III. Uniqueness Theorems
8. Uniqueness theorems in pseudooscillation problems
9. Uniqueness theorems in steady state oscillation problems
CHAPTER IV. Potentials and Boundary Integral Operators
10. Thermoelastic steady state oscillation potentials
11. Pseudooscillation potentials
CHAPTER V. Regular Boundary Value and Interface Problems
12. Basic BVPs of pseudooscillations
13. Basic exterior BVPs of steady state oscillations
14. Basic interface problems of pseudooscillations
15. Basic interface problems of steady state oscillations
CHAPTER VI. Mixed and Crack Type Problems
16. Basic mixed BVPs
17. Crack type problems
18. Mixed interface problems of steady state oscillations
19. Mixed interface problems of pseudooscillations

7 
GrafikAusgabe vom Parallelrechner für 2DGebietePester, M. 30 October 1998 (has links) (PDF)
The paper mainly describes the user interface of some graphical
visualization tools for parallel finite element applications in
2D (layer problems, deformation problems, fluid dynamics). There
are presented some examples of various methods to display the
numerical results.

8 
GrafikAusgabe vom Parallelrechner für 3DGebieteMeyer, M. 30 October 1998 (has links) (PDF)
The paper describes a method for Visualization of computational results in parallel finite element applications for 3D problems. The visualization itself is done on a workstation using a post processing tool based on GRAPE, which interacts with the parallel program to obtain data.

9 
Parallel solution of finite element equation systems: efficient interprocessor communicationApel, T., Haase, G., Meyer, A., Pester, M. 30 October 1998 (has links) (PDF)
This paper deals with the application of domain decomposition methods for the parallel solution of boundary value problems for partial differential equations over a domain $Omegabset R^d$, $d=2,3$. The attention is focused on the conception of efficient communication routines for the data exchange which is necessary for example in the preconditioned cgalgorithm for solving the resulting system of algebraic equations. The paper describes the data structure, different algorithms, and computational tests.

10 
On the preconditioning in the domain decomposition technique for the pversion finite element method. Part IIvanov, S. A., Korneev, V. G. 30 October 1998 (has links) (PDF)
Abstract Pversion finite element method for the second order elliptic equation in an arbitrary sufficiently smooth domain is studied in the frame of DD method. Two types square reference elements are used with the products of the integrated Legendre's polynomials for the coordinate functions. There are considered the estimates for the condition numbers, preconditioning of the problems arising on subdomains and the Schur complement, the derivation of the DD preconditioner. For the result we obtain the DD preconditioner to which corresponds the generalized condition number of order (logp )2 . The paper consists of two parts. In part I there are given some preliminary re sults for 1D case, condition number estimates and some inequalities for 2D reference element.

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