Results 31 to 40 of about 4,498,304 (303)

Doppler cooling of gallium atoms: 2. Simulation in complex multilevel systems [PDF]

open access: yes, 2010
This paper derives a general procedure for the numerical solution of the Lindblad equations that govern the coherences arising from multicoloured light interacting with a multilevel system.
Balykin V I   +8 more
core   +3 more sources

Clinical and radiological outcomes of the multilevel Ponte osteotomy with posterior selective segmental pedicle screw constructs to treat adolescent thoracic idiopathic scoliosis

open access: yesJournal of Orthopaedic Surgery and Research, 2018
Background To compare the clinical and radiological outcomes of the surgical correction of Lenke type 1 to 4 scoliosis by using a multilevel Ponte osteotomy procedure with posterior selective segmental pedicle screw constructs or posterior release and ...
Jing Feng   +4 more
doaj   +1 more source

Keep Calm and Learn Multilevel Logistic Modeling: A Simplified Three-Step Procedure Using Stata, R, Mplus, and SPSS

open access: yes, 2017
This paper aims to introduce multilevel logistic regression analysis in a simple and practical way. First, we introduce the basic principles of logistic regression analysis (conditional probability, logit transformation, odds ratio).
N. Sommet, D. Morselli
semanticscholar   +1 more source

Capacitor Condition Monitoring Based on the DC-Side Start-Up of Modular Multilevel Converters

open access: yesIEEE transactions on power electronics, 2020
This letter proposes a new submodule capacitor condition monitoring method for modular multilevel converters (MMCs) based on the dc-side start-up procedure.
Zhongxu Wang   +3 more
semanticscholar   +1 more source

Incidence of Multilevel Surgical Procedures and Readmissions in Uvulopalatopharyngoplasty in Taiwan [PDF]

open access: yesJAMA Otolaryngology–Head & Neck Surgery, 2019
Multilevel surgical procedures with uvulopalatopharyngoplasty (UPPP) appear to be associated with more complications than UPPP alone, but general and bleeding-related hospital readmissions have not been specifically investigated to date.To compare the risk of 30-day general and bleeding-related readmissions in adult patients who underwent UPPP alone ...
Ying-Shuo, Hsu   +5 more
openaire   +2 more sources

An Automatic Multilevel Image Thresholding Using Relative Entropy and Meta-Heuristic Algorithms

open access: yesEntropy, 2013
Multilevel thresholding has been long considered as one of the most popular techniques for image segmentation. Multilevel thresholding outputs a gray scale image in which more details from the original picture can be kept, while binary thresholding can ...
Josue R. Cuevas, Yun-Chia Liang
doaj   +1 more source

Testing the structure and process of personality using ambulatory assessment data : an overview of within-person and person-specific techniques [PDF]

open access: yes, 2019
In the present article, we discuss the potential of ambulatory assessment for an idiographic study of the structure and process of personality. To this end, we first review important methodological issues related to the design and implementation of an ...
De Clercq, Barbara   +4 more
core   +1 more source

Robustness of Reinforced Concrete Frames against Blast-Induced Progressive Collapse

open access: yesVibration, 2021
A quantitative procedure for the robustness and progressive collapse assessment of reinforced concrete (RC) frames under blast load scenarios is presented. This procedure is supported by multilevel numerical models, including nonlinear numerical analyses
Mattia Francioli   +3 more
doaj   +1 more source

Optimum SHE for cascaded H-bridge multilevel inverters using: NR-GA-PSO, comparative study [PDF]

open access: yes, 2015
Selective Harmonic Elimination (SHE) is very widely applied technique in the control of multilevel inverters that can be used to eliminate the low order dominant harmonics.
Alamri, B, Darwish, M, Sallama, A
core   +1 more source

Hybrid Procedure in Aortoiliac Bifurcation and Femoral Lesion

open access: yesFolia Medica Indonesiana, 2022
Highlights: • A patient had a long segment of total occlusion to the proximal right common iliac and anterior tibial artery. • The treatment is a combination of percutaneous transluminal angioplasty (PTA) using vascular stent and the Fogarty ...
Yudi Her Oktaviono
doaj   +1 more source

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