Results 131 to 140 of about 1,723,588 (348)

Decoupling Principle Analysis and Development of a Parallel Three-Dimensional Force Sensor

Sensors, 2016
In the development of the multi-dimensional force sensor, dimension coupling is the ubiquitous factor restricting the improvement of the measurement accuracy.
Yanzhi Zhao, Leihao Jiao, Dacheng Weng, Dan Zhang, Rencheng Zheng   +4 more
doaj   +1 more source

Commissioning of Halcyon enhanced leaf model in the Eclipse treatment planning system: Focus on simple slit fields and VMAT dose calculation

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The dual‐layer multileaf collimator (MLC) in Halcyon adds complexities to the dose calculation process owing to the variability of dosimetric characteristics with leaf motion. Recently, an enhanced leaf model (ELM) was developed to refine the MLC model in the Eclipse treatment planning system. This study investigates the performance of
Ryohei Miyasaka, Mari Shirai, Mitsunobu Igari, Yume Kojima, Yuki Kozawa, Toru Kawachi, Ryusuke Hara   +6 more
wiley   +1 more source

Comparative Analysis of Accuracy between Computerized Tomography and Cephalogram for 3-Dimensional Measurement of Maxillofacial Structure [PDF]

, 2001
Jong Su Paek, Jae Chul Song, Hee Kyung Lee   +2 more
openalex   +1 more source

Dose rate correction of a diode array for universal wedge field dosimetric verification

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To study the performance of MapCHECK 3 (MC3) in measuring universal wedge fields and propose a dose rate correction strategy to improve MC3 measurement accuracy. Materials and methods Universal wedge fields with different wedge angles and field sizes were measured at different depths using MC3.
Linyi Shen, Mengyang Li, Guiyuan Li, Xinyuan Chen, Shouping Xu, Jianrong Dai, Yuan Tian   +6 more
wiley   +1 more source

Research of Measurement Technology of 3D Tooth Surface Error of Non-circular Gear

Jixie chuandong, 2019
In order to improve the measurement accuracy of non-circular gears, a three-dimensional measurement method for non-circular gear tooth surfaces is proposed. According to the basic meshing principle of the non-circular gear, the tooth surface model of the
Yongping Liu, Haiqing Deng, Fulin Liao, Changbin Dong, Jie Xu   +4 more
doaj  

Bone‐wise rigid registration of femur, tibia, and fibula for the tracking of temporal changes

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Multiple myeloma (MM) induces temporal alterations in bone structure, such as osteolytic bone lesions, which are challenging to identify through manual image interpretation. The large variation in radiologists' assessments, even at expert centers, further complicates diagnosis.
Arttu Ruohola, Ville Haapamäki, Eero Salli, Tuomas Kaseva, Marko Kangasniemi, Sauli Savolainen   +5 more
wiley   +1 more source

Accuracy of Linear Measurements Using Cone Beam Computed Tomography in Comparison with Clinical Measurements

Frontiers in Dentistry, 2016
Objectives: This study sought to evaluate the accuracy and errors of linear measurements of mesiodistal dimensions of Kennedy Class III edentulous space using cone beam computed tomography (CBCT) in comparison with clinical measurements.
Amir Reza Rokn, Kazem Hashemi, Solmaz Akbari, Mohammad Javad Kharazifard, Hamidreza Barikani, Mehrdad Panjnoosh   +5 more
doaj  

Permutation of Tensor-Train Cores for Computing Moments on Stochastic Differential Equations [PDF]

arXiv
Tensor networks, particularly the tensor train (TT) format, have emerged as powerful tools for high-dimensional computations in physics and computer science. In solving coupled differential equations, such as those arising from stochastic differential equations (SDEs) via duality relations, ordering the TT cores significantly influences numerical ...
arxiv  

Graphical-model based estimation and inference for differential privacy [PDF]

arXiv, 2019
Many privacy mechanisms reveal high-level information about a data distribution through noisy measurements. It is common to use this information to estimate the answers to new queries. In this work, we provide an approach to solve this estimation problem efficiently using graphical models, which is particularly effective when the distribution is high ...
arxiv  

A study on the measuring accuracy of three-dimensional coordinate measuring machines. (Influence of measuring type of probe).

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1991
The measuring accuracy of three-dimensional coordinate measuring machines (cmm's) is affected by various error factors. To improve the measuring accuracy of cmm's by numerical error correction, it is necessary to give the calibration method careful consideration for several error factors in addition to geometrical errors.
Makoto Oya, Katsuya Tanifuji
openaire   +2 more sources