Results 71 to 80 of about 8,001 (254)

Surface structure feature matching algorithm for cardiac motion estimation

BMC Medical Informatics and Decision Making, 2017
Background Cardiac diseases represent the leading cause of sudden death worldwide. During the development of cardiac diseases, the left ventricle (LV) changes obviously in structure and function. LV motion estimation plays an important role for diagnosis
Zhengrui Zhang, Xuan Yang, Cong Tan, Wei Guo, Guoliang Chen   +4 more
doaj   +1 more source

Solids Conveying in Injection Molding Machines—Analytical Model for Smooth and Grooved Feed Sections Derived From DEM Simulations

Polymer Engineering &Science, EarlyView.
Understanding Solids Conveying in Injection Molding Machines – Dimensions. ABSTRACT Solids conveying is a key aspect for the design of polymer processing machines, especially for processes with high screw speeds, grooved feed sections, and material with low bulk density.
Jan Landgraeber, Volker Schoeppner, Dennis Kleinschmidt, Dominik Jonek, Nils Grieger   +4 more
wiley   +1 more source

On the high convergence orders of the Newton-GMBACK methods

Journal of Numerical Analysis and Approximation Theory, 1999
The high convergence orders of the Newton-GMBACK methods can be characterized applying three different existing results. In this note we show by some direct computations that these characterizations are equivalent.
Emil Cătinaş
doaj   +2 more sources

Zeroth-Order Riemannian Adaptive Regularized Proximal Quasi-Newton Optimization Method

Axioms
Recently, the adaptive regularized proximal quasi-Newton (ARPQN) method has demonstrated a strong performance in solving composite optimization problems over the Stiefel manifold.
Yinpu Ma, Cunlin Li, Zhichao Wang, Qian Li   +3 more
doaj   +1 more source

Sonified Signals From a Compact FT‐ICR Instrument: A Feasibility Study. I—Data Mapping to an Equal‐Tempered Chromatic Scale

Rapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Ions trapped within a Penning cell (ICR) travel periodic orbits whose frequencies are dependent on their mass‐to‐charge ratio and the value of the magnetic field passing through the trap. Fourier transformation (FT‐ICR) decomposes the signal induced in the detection circuit by the rotation of the ions in the cell after the ...
Patrick Arpino, Michel Heninger
wiley   +1 more source

Machine learning‐driven advances in carbon‐based quantum dots: Opportunities accompanied by challenges

Responsive Materials, EarlyView.
Machine learning provides a unifying framework to connect structure, fluorescence properties, and applications of carbon‐based quantum dots. This review highlights how data‐driven strategies enable fluorescence regulation, reveal underlying mechanisms, and accelerate the rational design of functional carbon dots.
Liangfeng Chen, Siwei Yang, Xiangqian Cui, Ziheng Liu, Hang Wang, Yongqiang Li, Peng He, Miao Wang, Guqiao Ding   +8 more
wiley   +1 more source

Perched groundwater simulation using the picard iteration‐based always active cell method

River, EarlyView.
Abstract Aquitards within the vadose zone impede vertical infiltration, leading to the formation of saturated perched groundwater. Perched groundwater flows laterally along aquitards, resulting in a heterogeneous spatial distribution of groundwater recharge that significantly influences groundwater formation and evolution.
Wen Lu, Chuiyu Lu, Weichen Wu, Zhenjiang Wu, Wenjia Zhang, Qingyan Sun, Chu Wu, Lingjia Yan, Meng Ma, Rong Liu   +9 more
wiley   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

SmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen, Zeyuan Huang, Ying Yan, Xiaokang An, Zhikai Zhao, Jirong Lin, Xiangrong Zhao, Xianyuan Gao, Junyi Zong, Xuewen Jia, Zhipeng Yao, Jianliang Liao, Ning Ji   +12 more
wiley   +1 more source

Attitude Estimation Fusing Quasi-Newton and Cubature Kalman Filtering for Inertial Navigation System Aided With Magnetic Sensors

IEEE Access, 2018
In the complex underwater environment, the performance of microelectro-mechanical system sensors is degraded sharply and the errors will become much larger.
Haoqian Huang, Jun Zhou, Jun Zhang, Yuan Yang, Rui Song, Jianfeng Chen, Jiajin Zhang   +6 more
doaj   +1 more source

Material‐Dependent Functionalization of CVD‐Grown TMDC Monolayers Probed by Vibrational Nanospectroscopy

Small, EarlyView.
PiFM‐led investigation of material‐specific electrochemical aryl diazonium reduction on 2D transition metal dichalcogenide MoSe2‐WSe2 lateral heterostructure monolayers, with mechanisms explained by molecular dynamics simulations. ABSTRACT Understanding the molecular‐level mechanisms governing covalent functionalization of two‐dimensional ...
Maziar Jafari, Amir Khojastehnezhad, Seyed Faridedin Rafie, Andrey Krayev, Nidal Abu‐Zahra, Mohamed Siaj   +5 more
wiley   +1 more source