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Saif Dawood Salman Al-Shaikhli - Medical Image Segmentation using Level Sets and Dictionary Learning

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Saif Dawood Salman Al-Shaikhli

Medical Image Segmentation using Level Sets and Dictionary Learning

Series: Elektrotechnik

Volume 415 2016

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Topological Prior For Image Segmentation and Classification S. 29-50

„… 3.1.2, is used as a feature to classify normal and abnormal brains using a dictionary learning approach …” „… dictionary, this feature vector is classified a normal or abnormal case. Let Dc be a dictionary n × Kc matrix …” „… prior knowledge. Furthermore, beside the segmentation of brain structures, the classification of normal …”

Background S. 11-28

„… , we focus on automatic segmentation approaches using local and global image features as prior …” „… of MRI sequences of the same patient (brain with glioma tumor). The appearance of normal and abnormal …” „… development of the brain and the volumetric analysis of normal brains. Brain image segmentation is also useful …”

Coupled Dictionary Learning For Image Segmentation S. 51-82

„… algorithm using a dictionary learning approach. This part is applied to solve a multi-label brain tumor …” „… surrounding the tumor) lead to a mass effect on the normal brain tissues. Thus, due to clinical relevance, the …” „… . of biological information of the normal brain and tumor tissues [39]. The appearance of glioma …”

doi.org/10.51202/9783186415219

Michael Pagel - Model-based diagnosis of electronic cooling fan drive systems

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Michael Pagel

Model-based diagnosis of electronic cooling fan drive systems

Series: Mess-, Steuerungs- und Regelungstechnik

Volume 1262 2018

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Methods of Fault Detection and Diagnosis S. 8-17

„… fault-free case (Wolfram, 2002). A symptom is the deviation of the generated features from the normal …” „… faults (Wolfram, 2002). In comparison, the model-based approach allows for a deeper and broader …” „… , the main approaches based on process models used throughout this work are covered in more detail …”

Introduction S. 1-7

„… eccentricity signatures and use a support vector machine to predict the type and the degree of eccentricity …” „… eccentricities, with their approach it is also possible to detect mixed-eccentricities. A review of methods for …” „… analysis, model- as well as knowledge-based approaches. As for other areas of fault detection of electrical …”

Fault Detection and Diagnosis of the electrical motor: Online Parameter Acquisition S. 40-98

„… (2011)). Utilization of a PRBS leads to a disturbance of the normal drive operation, which can not be …” „… method for reliable winding resistance measurement during standstill as well as during normal operation …” „… parameter in the parameter vector. The resistance and the ux linkage both depend on temperature. The self …”

doi.org/10.51202/9783186262080

Xiao Zhao - Reactor network synthesis with guaranteed robust performance

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Xiao Zhao

Reactor network synthesis with guaranteed robust performance

Series: Verfahrenstechnik

Volume 952 2017

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Titelei/Inhaltsverzeichnis S. I-XIV

„… , Mixed-integer nonlinear programming, Normal vector approach, Robust optimization In this work a systematic …” „… of freedom SA spectral abscissa NVA normal vector approach CV controlled variable MV manipulated …” „… vector approach . . . . . . . . . . 82 5.4 Eigenvalue optimization …”

Solution methods S. 60-106

„… predefined small number for -optimality. 5.3.3 A robust design method: Normal vector approach The normal …” „… vector approach (NVA) [113, 119] is a robust design method for dynamic systems. In this method, normal …” „… 5.1: A geometric illustration of the normal vector approach. The figure is drawn in the space of …”

Introduction S. 1-16

„… first step. The resulting uncertain problem is solved by applying the normal vector approach [120 …” „… ]. Advantage of this two-step hybrid solution strategy is that, the normal vector approach in the second step …” „… two-step solution strategy (cf. Section 5.6), we directly use the normal vector approach proposed in [120 …”

Case study of allyl chloride production S. 107-132

„… treating the SIP (cf. Eq. (5.100)) is applied before applying the normal vector approach. This intermediate …” „… the critical boundary is not in the selected 2-dimensional subspace, but along the normal vector …” „… vector approach is based on Eq. (5.101). Compared to the first step, the second step is computationally …”

Summary and outlook S. 133-140

„… by applying the normal vector approach, which guarantees robust dynamic properties. A great advantage …” „… of applying this two-step hybrid method is that, the normal vector approach can be properly …” „… approach by using simulations. Simulation 134 7.2 Future research directions studies show that the …”

Bibliography S. 158-176

„… . Marquardt. A normal vector approach for integrated process and control design with uncertain model …” „… , 1972. [53] J. Gerhard, W. Marquardt, and M. Mönnigmann. Normal vectors on critical manifolds for …” „… , 2004. 165 Bibliography [119] M. Mönnigmann and W. Marquardt. Normal vectors on manifolds of critical …”

Appendices S. 141-157

„… is well defined because the normal vector r is well defined under TC.). Denote z̄′ = (x̄′T , ȳ′T )T …” „… flowrate variables evaluated at point y ∗ (elements of q in vector y) remain non-zero inside Uy∗ and only …” „… denote the vector space of nxi-by-nxi real matrix. The inner structure of Jid(y ∗) with diagonal block …”

doi.org/10.51202/9783186952035

Lars Radtke - A partitioned solution approach for fluid-structure interaction problems in the arterial system

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Lars Radtke

A partitioned solution approach for fluid-structure interaction problems in the arterial system

Series: Mechanik/Bruchmechanik

Volume 353 2020

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Numerical methods S. 69-152

„… denotes the product of the unit normal vector n and the factor originating from the coordinate …” „… follower loads by expressing the normal vectors n̂ as J F−TN̂ and applying standard rules for …” „… points are determined such that the boundary curves s (i) j are orthogonal to the given normal vectors …”

Numerical investigations S. 153-219

„… interpolations and sampled functions (polynomial f(x, y, z) = x2 + y3 + z4 and normal vector). these source …” „… geometries, the polynomial f(x) polynomial = x2 + y3 + z4 (5.17) as well as the respective normal vector are …” „… Numerical investigations the normal vector for the cube is not well defined along its edges and at its …”

Mechanical modeling of the arterial system S. 23-68

„… these laws are applied. In view of the partitioned solution approach, this leads to separate subproblems …” „… difference between monolithic and partitioned solution approaches is illustrated and a common notation for a …” „… partitioned solution approach is discussed in detail. Like the coupling software introduced there, it is …”

Applications S. 220-252

„… 6 Applications In this chapter, the partitioned solution approach is applied to investigate the …” „… study is performed in order to demonstrate the applicability of the approach for larger scale problems …” „… demonstrating the usage of the partitioned solution approach this provides references for a later investigation …”

Bibliography S. 269-288

„… (2014), pp. 669–681. [28] S. Brändli, M. Abdel-Maksoud, and A. Düster. “A FEM-BEM approach for Fluid …” „… . Bungartz, F. Lindner, M. Mehl, and B. Uekermann. “A plug-and-play coupling approach for parallel …” „… approach for electro-thermo-mechanical problems”. In: Archive of Applied Mechanics 85 (2015), pp. 1075–1101 …”

doi.org/10.51202/9783186353184

VDI Wissensforum GmbH - International Conference on Gears 2017

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2017

Series: VDI-Berichte

Volume 2294 2017

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L. Liu Tooth contact analysis of a new type of face gear drive S. 457-466

„… VDI-Berichte Nr. 2294, 2017 459 of cn , the unit normal vector for c in cS . Coordinate systems for the …” „… tooth surface of convex TIG is denoted as 1 . The position vector 1R and unit normal vector 1n are …” „… tooth space; sn is the unit normal vector of 2 represented in 2S . Fig: 6: Tooth …”

B. Guilbert, P. Cutuli, P. Velex Hybrid dynamic model of hollow thin-rimmed gears S. 623-634

„… ijM M M (1) with , the normal approach with respect to rigid-body positions and 0 , the …” „… approach [10]. Fig. 1: Hybrid gear element with rigid body pinion and flexible condensed gear …” „… updated in order to account for the mesh stiffness and tooth shape variations [1]. The normal deflection …”

C. Gosselin, E. Fritz, L. Seiler CnC manufacturing of circular faced cylindrical gears S. 1343-1352

„… a plane perpendicular to the common normal vector. When applied to the reference frames of Fig. 1 …” „… ) ))sin(( 0 )cos( SR S D (4) Similarly, Eq. (5) defines vector N , the normal …” „… any contact point, the coordinates on the pinion and gear teeth must be equal and the normal vectors …”

Y. Zhao Curvature interference characteristic of conical surface Enveloping Spiroid S. 835-844

„… normal vector of g can be worked out from Eq. (1). The result is a a a aa , cos cos cos sin …” „… , the unit normal vector of Sg in d can be attained from Eq. (2) and the result is …” „… B , and o1 z zz A u B . In Eq. (8), the three components of the unit normal vector n can …”

A. von Freyberg, A. Fischer Automatic geometry segmentation of involute flank regions S. 1015-1024

„… cars. For this purpose, only a few approaches exist, and all of them are based on assumptions and …” „… demand for several applications. A novel approach for the estimation of unknown geometric gear …” „… involute flank have to be segmented first. The presented novel approach is a holistic approximation …”

J. Thomas, C. Wirth Determination and improvement of bevel gear efficiency by means of loaded TCA S. 707-718

„… for tooth contact analysis (TCA) are based on numerical methods. An approach developed by ZG GmbH …” „… the local approach the micro geometry of the gear (based on machine settings) can be optimized …” „… point #1 the normal force Fn1 acts against the pinion flank. Sliding velocity at this point causes a …”

C. Brecher, C. Löpenhaus, F. Goergen, D. Mevissen Crack propagation analysis of pitting damages of high-strength material systems in gear applications S. 281-292

„… principal normal and principal shear stresses at the top right. The vectors length correspond to the …” „… depth of the fatigue zone can be explained by the time-depended change of normal and shear principal …” „… normal and shear principal stress. The combination of damage characteristics and the new evaluation of …”

B. Černe, D. Zorko, J. Duhovnik Semi-analytical method for the prediction of the flank temperatures of polymer gears during running S. 1611-1624

„… , with a penetration tolerance of 0,005-0,01mm, a normal stiffness coefficient value of 0.1 and …” „… deformation vector. The distance change between the peak stress nodes at two adjacent time steps must be …” „… rotation of the coordinates of the current sliding nodal distance vector rd=(Xd,Yd), by the angle ∆φ has …”

B. Schlecht, F. Rudolph, S. Schumann Experimental studies and simulation of hypoid gear lapping S. 1403-1414

„… simulation approaches. The most important group of these attribute local material removal to normal force or …” „… calculated wear depth along the flank surface’s normal vectors. The resulting flank geometry is then fed to …” „… , based on a widely used wear approach and a fast and accurate tooth contact simulation. High-resolution …”

E. Rigaud, P.-H. Cornuault, B. Bazin, E. Grandais-Menant Prediction of the vibroacoustic response of an electric window-lift gear motor S. 635-648

„… Abstract A numerical approach is proposed for analyzing the vibroacoustic behavior of an electric …” „… normal electromagnetic forces applied to steel stator, the electromagnetic input torque fluctuation, the …” „… positioned within the magnetic field, normal (Maxwell) and tangential (Lorentz) electromagnetic forces are …”

E. Böyükbaş, H. J. Stadtfeld Surface structure shift for ground bevel gears S. 1391-1402

„… as normal vector. The amount of modification can be calculated with FSO(t) = Rwag [ cos(fwag …” „… allow lubricant to access the grinding contact zone. The Waguri spindle approach was not utilized in …” „… optimal surface structure. Preferred vector directions for micro pulsing: a) tangential to the flat …”

D. Talbot, A. Kahraman Simulation of gear wear using a dynamic load distribution model S. 5-16

„… mesh force, i is a vector of ones, and ( )t F is a vector containing the load distribution at the …” „… Gear Pair Number of teeth 25/31 25/31 Normal Module [mm] 3.175 2.954 Normal Pressure angle [°] 25 …” „… . VDI-Berichte Nr. 2294, 2017 15 [11] Yau, E., Busby, H. R., Houser, D. R., “A Rayleigh-Ritz approach to …”

C. Brecher, C. Löpenhaus, J. Brimmers Potential of free flank modifications for beveloid gears S. 553-564

„… GEARGENERATOR is used. Each point of the gear flank is modified along the direction of the normal vector …” „… for Beveloid Gears 3 Objective and Approach The state of the art shows the possibility of improving …” „… ² +… Optimization of the operational behavior Fig. 3: Approach for the Optimization of the Operational Behavior …”

M. Baar, P. Oster, T. Tobie, K. Stahl Theoretical investigations of the load distribution of small sized crown gear sets different material pairings S. 1593-1610

„… unterschiedlicher Werkstoffpaarung“ (TU München, Baar, 2017). 1. Abstract An analytical approach for the …” „… perpendicular to the normal plane, where the local forces, resulting from the acting torque, are calculated …” „… this approach the special geometry of crown gears stays unconsidered. 3. Tooth geometry of crown gears …”

J. Reißmann, E. Leidich Computation of the tooth root strength of Worm Wheels with a calculation program based on local stresses S. 373-394

„… flank and the force vectors are the main part of the meshed 3D model (Figure 9, left). Beside the …” „… cover the effect of material defects in steels of normal industrial quality. Because of the 50 …” „… . With this new approach, different material qualities can be compared, and the survival probability for …”

doi.org/10.51202/9783181022948

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