A Local Spherical Coordinate System Approach to Protein 3D Structure Description
, 2020 To date, Cartesian (x, y, z) coordinate system (CCS) has been the default approach to geometrically specify atomic spatial positions in protein structures since the launch of Protein Data Bank (PDB) in 1971. To this end, this paper proposes a local spherical coordinate system (SCS) approach as an alternative to the default approach and a previously ...
Wei Li
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Virtual Coordinate Measuring Machine Built Using Lasertracer System and Spherical Standard [PDF]
Metrology and Measurement Systems, 2013 Abstract Improvements of modern manufacturing techniques implies more efficient production but also new challenges for coordinate metrologists. The crucial task here is a coordinate measurement accuracy assessment. It is important because according to technological requirements, measurements are useful only when they are stated with their accuracy.
Jerzy Sładek +4 more
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Aerogravity terrain correction method based on spherical coordinate system
      In recent years, due to the enhanced interference-resistance of airborne gravimeters and the advanced gravity anomaly calculation techniques, the China Geological Survey has carried out numerous airborne gravity survey missions in mid-high mountainous and deeply incised regions, including Tibet, Xinjiang, and Gansu.
Linfei Wang +4 more
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Modeling of Magnetotelluric Source Amplitude Effect in a Spherical Coordinate System
Magnetotelluric (MT) impedances of the three-dimensional (3-D) Earth are typically modeled in a Cartesian coordinate system, neglecting the Earth’s curvature. While this approximation is valid for one-dimensional (1-D) structures, its applicability to 3-D Earth remains uncertain.
Xin Wan +3 more
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Single-joint spherical pendulum mathematical modeling in cartesian coordinate system [PDF]
Politechnical student journal, 2020 V.V. Zaika, A.L. Maslennikov
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A Shape Reconstruction and Measurement Method for Spherical Hedges Using Binocular Vision
Frontiers in Plant Science, 2022 The center coordinate and radius of the spherical hedges are the basic phenotypic features for automatic pruning. A binocular vision-based shape reconstruction and measurement system for front-end vision information gaining are built in this paper ...
Yawei Zhang +7 more
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To the question of coordinate system choice within composition of the spatial generalized MIMO radar ambiguity function [PDF]
ITM Web of Conferences, 2019 The issue of the choice of spatial coordinate system which is suitable to physical sense of the radar concept is explored on the basis of the derivation of spatial generalized ambiguity function for MIMO antenna system and of its cross-section analysis ...
Vodolazov Rodion +2 more
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Discussing sources of the β-term in a vorticity equation in rotating coordinates
Frontiers in Earth Science, 2023 In the study of atmospheric dynamics, the vorticity equation in a rotating coordinate system plays a crucial role. However, a paradox arises when one considers the term related to spatial variations in Coriolis parameters known as the “β-term”.
Xiuming Wang +3 more
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Системный анализ и прикладная информатика, 2021 This paper discusses the problem of determining a kinematics (in terms of transfer function, as far as possible) of parameters of the motion of an aircraft expressed in the curvilinear coordinate system and control accelerations expressed in a ...
V. V. Legkostup, V. E. Markevich
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Analysis of errors introduced by geographic coordinate systems on weather numeric prediction modeling [PDF]
Geoscientific Model Development, 2017 Most atmospheric models, including the Weather Research and Forecasting (WRF) model, use a spherical geographic coordinate system to internally represent input data and perform computations. However, most geographic information system (GIS) input data
Y. Cao +6 more
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