Results 21 to 30 of about 167,180,107 (247)

Exploring the Charge Compensation Mechanism of P2-Type Na_0.6Mg_0.3Mn_0.7O₂ Cathode Materials for Advanced Sodium-Ion Batteries

Energies, 2020
P2-type sodium layered transition metal oxides have been intensively investigated as promising cathode materials for sodium-ion batteries (SIBs) by virtue of their high specific capacity and high operating voltage.
Chen Cheng, Manling Ding, Tianran Yan, Kehua Dai, Jing Mao, Nian Zhang, Liang Zhang, Jinghua Guo   +7 more
doaj   +1 more source

Accelerated Gradient Methods with Absolute and Relative Noise in the Gradient

, 2023
In this paper, we investigate accelerated first-order methods for smooth convex optimization problems under inexact information on the gradient of the objective.
Dvurechensky, Pavel, Vasin, Artem, Spokoiny, Vladimir, Gasnikov, Alexander   +3 more
core   +1 more source

Reduced coronary collateralization in type 2 diabetic patients with chronic total occlusion

Cardiovascular Diabetology, 2018
Background The extent of coronary collateral formation is a primary determinant of the severity of myocardial damage and mortality after coronary artery occlusion.
Ying Shen, Feng Hua Ding, Yang Dai, Xiao Qun Wang, Rui Yan Zhang, Lin Lu, Wei Feng Shen   +6 more
doaj   +1 more source

Electric Power Loss Minimization in Power Supply Systems for the Suburban Houses [PDF]

Problems of the Regional Energetics, 2018
The main purpose of the research is the development and improvement of methods for minimizing power losses for non-sinusoidal and asymmetric modes of operation of power supply systems for suburban houses.
Averbukh М.А., Zhilin Е.V., Prokopishin D.I.   +2 more
doaj   +1 more source

Fabrication of functional surfaces using layer height method in material extrusion type 3D printing

Journal of Materials Research and Technology
Various layer stacking methods have been employed in material extrusion type three-dimensional (3D) printing to utilize their potential for addressing the inherent technological limitation of reduced surface quality due to layer stacking.
Jaebum Sung, Yeongu Choi, Hongyun So
doaj   +1 more source

Learning Supervised PageRank with Gradient-Based and Gradient-Free Optimization Methods [PDF]

, 2016
In this paper, we consider a non-convex loss-minimization problem of learning Supervised PageRank models, which can account for features of nodes and edges. We propose gradient-based and random gradient-free methods to solve this problem.
Dvurechensky, Pavel, Gusev, Gleb, Nesterov, Yurii, Raigorodskii, Andrei M., Tikhonov, Aleksey, Bogolubsky, Lev, Gasnikov, Alexander, Zhukovskii, Maksim   +7 more
core   +1 more source

Medium term follow-up after percutaneous pulmonary valve replacement with the Melody® valve

International Journal of Cardiology: Heart & Vasculature, 2015
Introduction: Data on long term function of the Melody valve are scarce. Patients and methods: single institution; results of percutaneous pulmonary valve implantation (PPVI) from 2006 to 2014.
Bjorn Cools, Werner Budts, Ruth Heying, Derize Boshoff, Benedicte Eyskens, Stefan Frerich, Els Troost, Marc Gewillig   +7 more
doaj   +1 more source

Relationship Between QT Interval and Outcome in Low‐Flow Low‐Gradient Aortic Stenosis With Low Left Ventricular Ejection Fraction

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundQT interval has been shown to be associated with cardiovascular events. There is no data regarding the association between QT interval and left ventricular (LV) function and prognosis in patients with low LV ejection fraction (LVEF), low‐flow ...
Abdellaziz Dahou, Oumhani Toubal, Marie‐Annick Clavel, Jonathan Beaudoin, Julien Magne, Patrick Mathieu, François Philippon, Jean G. Dumesnil, Rishi Puri, Henrique B. Ribeiro, Éric Larose, Josep Rodés‐Cabau, Philippe Pibarot   +12 more
doaj   +1 more source

Color-coded summation images for the evaluation of blood flow in endovascular aortic dissection fenestration

BMC Medical Imaging, 2022
Background To analyze the benefit of color-coded summation images in the assessment of target lumen perfusion in patients with aortic dissection and malperfusion syndrome before and after fluoroscopy-guided aortic fenestration.
Anne Marie Augustin, Franziska Wolfschmidt, Thilo Elsässer, Alexander Sauer, Alexander Dierks, Thorsten Alexander Bley, Ralph Kickuth   +6 more
doaj   +1 more source

Type 2 Diabetes Risk Alleles Are Associated With Reduced Size at Birth [PDF]

, 2009
OBJECTIVE: Low birth weight is associated with an increased risk of type 2 diabetes. The mechanisms underlying this association are unknown and may represent intrauterine programming or two phenotypes of one genotype.
Timpson, NJ, Ruokonen, A, Weedon, Michael N, Hattersley, AT, McCarthy, MI, Pouta, Anneli, Lindgren, Cecilia M, Perry, JR, Weedon, MN, Elliott, P, Groves, Christopher J, Smith, GD, Shields, B, Power, C, Järvelin, MR, Hyppönen, E, Shields, Beverley, Zeggini, Eleftheria, McCarthy, Mark I, Bennett, Amanda J, Ring, Susan M, Power, Chris, Ring, SM, Ruokonen, Aimo, Pouta, A, Strachan, DP, Elliott, Paul, Järvelin, Marjo-Riitta, Timpson, Nicholas J, Lango, Hana, Groves, CJ, Bennett, AJ, Hattersley, Andrew T, Lindgren, CM, Smith, George Davey, Zeggini, E, Frayling, Timothy M, Strachan, David P, Lango, H, Hyppönen, Elina, Freathy, RM, Perry, John R B, Frayling, TM, Freathy, Rachel M, Freathy, R.M., Hypponen, E., Hattersley, A.T., Shields, B., Ring, S.M., Bennett, A.J.   +49 more
core   +1 more source