Results 21 to 30 of about 74,911 (267)

Mal-angulation of femoral rotational osteotomies causes more postoperative sagittal mechanical leg axis deviation in supracondylar than in subtrochanteric procedures

Journal of Experimental Orthopaedics, 2020
Purpose Alteration of the postoperative frontal mechanical leg axis is a known problem in femoral rotational osteotomies. However, the maintenance of the sagittal mechanical leg axis seems also important.
Lukas Jud, Octavian Andronic, Lazaros Vlachopoulos, Sandro F. Fucentese, Patrick O. Zingg   +4 more
doaj   +1 more source

Multi-axis synchronous interpolation feed rate adaptive planning with rotational tool center point function under comprehensive constraints

Advances in Mechanical Engineering, 2017
Real-time nonlinear error caused by rotation axis motion in five-axis interpolation can be compensated by rotational tool center point function.
Zhongquan Shi, Wenhua Ye, Ruijun Liang
doaj   +1 more source

Automated 3D Analysis of Zygomaticomaxillary Fracture Rotation and Displacement

Plastic and Reconstructive Surgery, Global Open, 2021
Background:. The zygomaticomaxillary complex (ZMC) can experience a multitude of deforming forces. There is limited understanding on which deformities alter patient outcomes. This study utilized an automated, three-dimensional analysis to elucidate which
Shamit S. Prabhu, MS, Scotty A. Chung, MS, Megan A. Rudolph, MD, Kshipra Hemal, MD, Philip J. Brown, PhD, Christopher M. Runyan, MD, PhD   +5 more
doaj   +1 more source

Bis[μ-1,1′-(ferrocene-1,1′-diyl)bis(butane-1,3-dionato)]di-μ-methanol-diiron(II)

Acta Crystallographica Section E, 2009
The asymmetric unit of the title compound, [Fe4(C9H8O2)4(CH3OH)2], contains one half-molecule located on a twofold rotational axis. In the molecule, the two FeII ions bridged by two coordinating methanol molecules are separated by 3.1286 (7 ...
Yan-Feng Xiao, Hong-Feng Li, Peng-Fei Yan, Guang-Ming Li   +3 more
doaj   +1 more source

Dosimetric Effects of Rotational Setup Error in Volumetric Modulated Arc Radiotherapy on Brain Tumor Patients [PDF]

Iranian Journal of Medical Physics, 2019
Introduction: This study examined the dosimetric effects based on the rotational setup error to correct patient setup errors occur during volumetric modulated arc radiotherapy (VMAT) for brain tumor patients.
Hyo-Kuk Park, Jae-Hwan Cho, sungchul Kim
doaj   +1 more source

Assessment of the rotation motion at the papillary muscle short-axis plane with normal subjects by two-dimensional speckle tracking imaging: a basic clinical study. [PDF]

PLoS ONE, 2013
BACKGROUND: The aim of this study was to observe the rotation patterns at the papillary muscle plane in the Left Ventricle(LV) with normal subjects using two-dimensional speckle tracking imaging(2D-STI).
Xian-Da Ni, Jun Huang, Yuan-Ping Hu, Rui Xu, Wei-Yu Yang, Li-Ming Zhou   +5 more
doaj   +1 more source

Type Synthesis and Analysis of a New Class of Bifurcation 3T2Rv Parallel Mechanisms With Variable/Invariable Rotational Axes

IEEE Access, 2021
Since the parallel mechanism has many advantages, such as high strength, high precision and so on, many industrial applications require mechanisms with three-dimensional translational and two-dimensional rotational motion (3T2R), 3T2R parallel mechanisms
Xuyu Hu, Hongzhao Liu
doaj   +1 more source

A Novel Method and System Implementation for Precise Estimation of Single-Axis Rotational Angles

Sensors
Accurately estimating single-axis rotational angle changes is crucial in many high-tech domains. However, traditional angle measurement techniques are often constrained by sensor limitations and environmental interferences, resulting in significant ...
Qinghua Yang, Yang Shen, Xuetao Sun, Changfa Wang   +3 more
doaj   +1 more source

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei, Stephen Mihalcik, Sujith Baliga, Young Kwok, Dana Casey, Eric Ehler, Christiane Burton, John C. Breneman, Daphne A. Haas‐Kogan, Suzanne L. Wolden, Arnold C. Paulino, Nadia N. Laack, Natia Esiashvili, Sarah Milgrom, Christine Hill‐Kayser, Thomas J. Fitzgerald, John A. Kalapurakal, Chia‐Ho Hua   +17 more
wiley   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source