Results 41 to 50 of about 4,047,721 (330)

Automatically Tightening Tiny Screw Using Two Images and Positioning Control

open access: yesMathematics, 2021
This paper describes how to tighten M1.4 screws by controlling a manipulator. The whole process is based on a human–machine interface designed using Visual Studio C++ to run image processing algorithms and control the position of a manipulator.
Shou-Yu Chen   +3 more
doaj   +1 more source

Quantum Radiation Properties of General Nonstationary Black Hole

open access: yes, 2017
Using the generalized tortoise coordinate transformations the quantum radiation properties of Klein-Gordon scalar particles, Maxwell's electromagnetic field equations and Dirac equations are investigated in general non-stationary black hole.
Singh, T. Ibungochouba
core   +2 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Accuracy of geodetic coordinates using Helmert transformation algorithm

open access: yesGeodesy and Cartography, 2012
Accuracy of geodetic coordinates transformed from one coordinate system to another is analysed in the publication. Values for transformation parameters are computed using the least-squares method.
Jonas Skeivalas
doaj   +1 more source

On the Fock Transformation in Nonlinear Relativity

open access: yes, 2012
In this paper, we propose a new deformed Poisson brackets which leads to the Fock coordinate transformation by using an analogous procedure as in Deformed Special Relativity. We therefore derive the corresponding momentum transformation which is revealed
A. BOUDA   +3 more
core   +1 more source

Reconsidering the galactic coordinate system [PDF]

open access: yes, 2010
Initially defined by the IAU in 1958, the galactic coordinate system was thereafter in 1984 transformed from the B1950.0 FK4-based system to the J2000.0 FK5-based system. In 1994, the IAU recommended that the dynamical reference system FK5 be replaced by
Aoki   +41 more
core   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

open access: yesFEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang   +8 more
wiley   +1 more source

The application of an artificial neural network for 2D coordinate transformation

open access: yesJournal of Intelligent Systems, 2022
Clark1880, WGS1984, and ITRF08 are the reference systems used in Iraq. The ITRF08 and WGS84 represent the global reference frames. In the majority of instances, the transformation from one coordinate system to another is required.
Abbas Ahmed Imad   +2 more
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Method of phase compensation and pattern transformation for array antennas with arbitrarily oriented circularly polarised elements

open access: yesIET Microwaves, Antennas & Propagation, 2023
The inconsistent polarised directions and the radiation pattern transformation of the elements need to be considered in the analysis and simulation of large circularly polarised conformal arrays. Without relying on full‐wave simulations of the full array,
Zhongtian Jing, Yubing Han
doaj   +1 more source

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