Convergence

Ultrasound tomography is a non-invasive imaging technique that seeks to determine the internal distribution of acoustic properties within the body by analyzing measured ultrasound data. Based on the distorted Born iterative method (DBIM), this work suggests employing resolution-jumping and beamforming techniques for tomographic ultrasound imaging.

11p vibenya 31-12-2024 2 1   Download

In this paper, we present a new improvement of the third-order Newton-Krylov method with a quaternary convergence rate and prove the convergence of the iterative formula. In addition, the paper also presents an experimental result to demonstrate the convergence speed of the method.

9p viprimi 16-12-2024 1 0   Download

Bài giảng "Tối ưu hóa nâng cao - Chương 7: Subgradient method" cung cấp cho người học các kiến thức: Last last time - gradient descent, subgradient method, step size choices, convergence analysis, lipschitz continuity, convergence analysis - Proof,... Mời các bạn cùng tham khảo.

34p abcxyz123_08 11-04-2020 26 3   Download

Bài giảng "Tối ưu hóa nâng cao - Chương 9: Stochastic gradient descent" cung cấp cho người học các kiến thức: Proximal gradient descent, stochastic gradient descent, convergence rates, early stopping, mini-batches. Mời các bạn cùng tham khảo.

24p abcxyz123_08 11-04-2020 51 3   Download

The mobile phone is a ubiquitous portable device capable of generating and displaying narrative content in the form of voice communications, text, images and video. It could be said that hybrid devices such as the mobile phone can create hybrid narratives. It is the aim of this exegesis to outline the theories, concepts and artistic practices that inform the design, production and display of narrative content that utilizes the potential of the mobile phone as a tool for storytelling.

82p runthenight05 01-03-2023 12 4   Download

The aim of the study is to describe the beliefs of teachers in some English centers in Ho Chi Minh City regarding the selection of supplementary materials and how supplementary materials are adapted and designed; identify the most influential sources of teachers’ beliefs; examine the convergence and divergence between teachers’ beliefs and their practice.

193p badbuddy10 21-04-2022 42 8   Download

The current investigation was performed with two major objectives: Assessment of BPH resistance of the batch of converged rice cultivars and local rice varieties; Phylogenetic analysis and using marker molecular-based breeding methods to develop the excellent 2-3 cultivars with sustained resistance to BPH for providing in the Mekong River Delta.

27p trinhthamhodang7 31-08-2020 9 2   Download

This chapter aims at providing a research background on mobile commerce. Also, this chapter postulates the research gaps. Briefly, it is the if and how the perception of risk and security simultaneously affects continuance intention to use mobile commerce under the influence of considerations of future consequences that generates the need to conduct this study. Also, based on the research gap, this study delineates the research methodology and research scope. Regarding the research methodology, this research includes two studies: the pilot study and the main study.

179p cothumenhmong6 17-07-2020 37 5   Download

Deterministic uncertainty propagation methods are certainly powerful and time-sparing but their access to uncertainties related to the power map remains difficult due to a lack of numerical convergence. On the contrary, stochastic methods do not face such an issue and they enable a more rigorous access to uncertainty related to the PFNS.

5p christabelhuynh 29-05-2020 10 1   Download

This paper presents a new penalty function called logarithmic penalty function (LPF) and examines the convergence of the proposed LPF method. Furthermore, the LaGrange multiplier for equality constrained optimization is derived based on the first-order necessary condition.

10p tohitohi 22-05-2020 14 0   Download

Linear matching method (LMM) is one of the effective numerical methods for the limit and shakedown analysis, which computes the converging upper series by solving iteratively linear elastic analysis with Young’s modulus varying in space.

14p tohitohi 19-05-2020 24 1   Download

The results of this thesis are: Propose and prove the strong convergence of a new modification of the Newton-Kantorovich iterative regularization method (0.6) to solve the problem (0.1) with A is a monotone mapping from Banach space E into the dual space E ∗ , which overcomes the drawbacks of method (0.6).

26p xacxuoc4321 09-07-2019 27 5   Download

This thesis aims to develop finite element models for studying vibration of the 2D-FGM beam. These models require high reliability, good convergence speed and be able to evaluate the influence of material parameters, geometric parameters as well as being able to simulate the effect of shear deformation on vibration characteristics and dynamic responses of the 2D-FGM beam.

27p xacxuoc4321 08-07-2019 61 8   Download

In this chapter, you learned to: Explain the role of VLANs in a converged network, explain the role of trunking VLANs in a converged network, configure VLANs on the switches in a converged network topology, troubleshoot the common software or hardware misconfigurations associated with VLANs on switches in a converged network topology.

20p youcanletgo_01 29-12-2015 57 3   Download

Chapter 4 explain the role of VTP in a converged switched network; describe the operation of VTP: VTP domains, VTP Modes, VTP Advertisements, and VTP Pruning; configure VTP on the switches in a converged network.

14p youcanletgo_01 29-12-2015 50 2   Download

The case of homologous monomeric c-type and oligomeric b-type crystallins has been described and analyzed in evolutionary terms. Data and hypotheses from molecular genetics and structural investigations converge and suggest a novel three-phase model for the evolutionary history of crystallin-type proteins. In the divergent cascades of monomeric and oligomeric crystallins, a pivotal role was played by alterations in the gene segments encoding the C-terminal extensions and the intermotif or interdomain linker peptides.

9p system191 01-06-2013 43 4   Download

Cloning and over-expression of human glucose 6-phosphate dehydrogenase (Glc6P dehydrogenase) has for the first time allowed a detailed kinetic study of a preparation that is genetically homogeneous and in which all the protein molecules are of identical age. The steady-state kinetics of the recombinant enzyme, studied by fluorimetric initial-rate measurements, gave converging linear Lineweaver–Burk plots as expected for a ternary-complex mechanism.

8p research12 01-06-2013 64 4   Download

We describehere anovelmethodology for rapiddiagnosis of metabolic changes,which is basedonprobabilistic equations that relate GC-MS-derived mass distributions in proteino-genic aminoacids toin vivoenzyme activities. Thismetabolic flux ratio analysis by GC-MS provides a comprehensive perspective on central metabolism by quantifying 14 ratios of fluxes through converging pathways and reactions from [1-13 C] and [U-13 C]glucose experiments.

12p tumor12 20-04-2013 36 4   Download

Using NMR spectroscopy and simulated annealing calculations, we deter-mined the solution structure of the disulfide-linked cyclized decapeptide ACLPWSDGPC (SD), which is bound to an anti-(gibberellin A4) mAb 4-B8(8)⁄E9 and was found to be the first peptidyl mimotope for a hydro-phobic ligand. The resulting structure of the peptide showed ab-turn-like conformation in residues three to seven and the region converges well (average rmsd 0.54 A ˚ ).

11p fptmusic 12-04-2013 49 3   Download

Tobacco pathogenesis-related protein 1a (PR-1a) is induced in plants during the hypersensitive response (HR) after exposure of plants to salicylic acid (SA) and by develop-mental cues.Gene activation by these diverse stimuli is mediated via anas-1-like element in the PR-1aupstream region.To further analyze the significance of thiscis-acting sequence, an authentic as-1element from the cauliflower mosaic virus 35S RNA promoter was inserted into the PR-1apromoter in place of theas-1-like motif.

11p fptmusic 12-04-2013 37 3   Download