Results 1 to 10 of about 2,046,742 (302)

A New Coordinate System for Magnetic Resonance Imaging of the Vestibular System [PDF]

open access: yesFrontiers in Neurology, 2022
Objectives: To develop and evaluate a new coordinate system for MRI of the vestibular system.Methods: In this study, 53 internal auditory canal MRI and 78 temporal bone CT datasets were analyzed. Mimics Medical software version 21.0 was used to visualize
Weixing Liu   +8 more
doaj   +2 more sources

Development and evaluation of a method to define a tibial coordinate system through the fitting of geometric primitives [PDF]

open access: yesInternational Biomechanics, 2021
Coordinate system definition is a critical element of biomechanical modeling of the knee, and cases of skeletal trauma present major technical challenges.
Stuart C. Millar   +4 more
doaj   +2 more sources

Considerations for Using the Vasculature as a Coordinate System to Map All the Cells in the Human Body [PDF]

open access: yesFrontiers in Cardiovascular Medicine, 2020
Several ongoing international efforts are developing methods of localizing single cells within organs or mapping the entire human body at the single cell level, including the Chan Zuckerberg Initiative's Human Cell Atlas (HCA), and the Knut and Allice ...
Griffin M. Weber   +2 more
doaj   +2 more sources

Virtual Coordinate System in Unicoronal Synostosis [PDF]

open access: yesPlastic and Reconstructive Surgery, Global Open, 2021
Background:. We propose a landmark-based, virtual coordinate system, specifically designed for assessment of asymmetrical craniofacial anatomy associated with unicoronal synostosis. Method:. CT scans of 33 patients with nonsyndromic unicoronal synostosis
Xiaona Lu, MD, PhD   +2 more
doaj   +2 more sources

Polypolar lemniscate coordinate system [PDF]

open access: diamondКомпьютерные исследования и моделирование, 2009
The polypolar coordinate system, as well as classical polar, characterizes a point on a plane by polar radius and polar angle , but utilizes multiple poles instead of one pole. Such referencing can be provided by a class of multifocal lemniscates.
Tatyana Anatol'evna Rakcheeva
doaj   +2 more sources

Three-dimensional Coordinate System for Hemifacial Microsomia [PDF]

open access: yesPlastic and Reconstructive Surgery, Global Open, 2020
Background:. Hemifacial microsomia (HFM) is a congenital disorder characterized by facial asymmetry, but no midline reference has been established for evaluating facial morphology in patients with HFM.
Dai Ariizumi, DDS   +6 more
doaj   +2 more sources

ANALYSIS OF COMMON QUALITY PROBLEMS IN COORDINATE TRANSFORMATION BETWEEN REFERENCE COORDINATE SYSTEM AND GEOCENTRIC COORDINATE SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
In the working of the existing reference coordinate system transformed into the coordinate system of the geocentric coordinate system, many experts and scholars have in-depth research on the transformation methods such as geodetic control point results ...
X. Zhang, J. Zhang, L. Zhang, J. Liu
doaj   +1 more source

PENGEMBANGAN MEDIA PEMBELAJARAN MATERI SISTEM KOORDINAT BERBASIS GEOGEBRA DI SEKOLAH DASAR

open access: yesAksioma: Jurnal Program Studi Pendidikan Matematika, 2023
This study aims to develop coordinate system learning media in the form of GeoGebra Applets for fifth grade elementary school students. Learning media was developed using the Research and Development (R&D) with the 4D model (Define, Design, Develop, and ...
Ulfiyani Ulfiyani   +2 more
doaj   +1 more source

Research advance in low-temperature resistant rubber: Molecular structure design and chemical modification

open access: yesHecheng xiangjiao gongye, 2022
"Research progress in low-temperature resistant rubber materials was reviewed with 77 references, the molecular structures, low temperature resistance and influencing factors of natural rubber, general synthetic rubber and special synthetic rubber were
WANG Tian-jiao1, MA Yu-cong1, ZHENG Shun-qi2, DING Ang3, WU Ai-min1, HUANG Hao1
doaj   +1 more source

Magnetic Coordinate Systems [PDF]

open access: yesSpace Science Reviews, 2016
Geospace phenomena such as the aurora, plasma motion, ionospheric currents and associated magnetic field disturbances are highly organized by Earth's main magnetic field. This is due to the fact that the charged particles that comprise space plasma can move almost freely along magnetic field lines, but not across them. For this reason it is sensible to
K. M. Laundal, A. D. Richmond
openaire   +5 more sources

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