Results 31 to 40 of about 1,876 (260)

Mathematical model of laser tracker measur-ing system for multiple control of large constructions

open access: yesВестник Самарского государственного технического университета. Серия: Технические науки, 2022
Laser trackers are widely used to non-contact measure large-scale aerospace products. If it is impossible to inspect the entire product with a single laser tracker with a fixed position, multi-station inspection is used.
Nadezhda A. Sazonnikova, Roman V. Uklein
doaj   +1 more source

Application of genetic algorithm to multilateration measurement of the volumetric error in machine tools

open access: yesAdvances in Mechanical Engineering, 2016
The multilateration measurement with laser tracker has become a popular method for measuring the volumetric error of machine tools, owing to its advantages of high efficiency and large measurement range.
Haitong Wang   +4 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Study on LT Accuracy Improvement by Calibration Based on Network Measurements

open access: yesSensors, 2021
Laser trackers (LT) are widely used to calibrate other machines. Nevertheless, very little is known about calibrating an LT. There are some standards that allow us to evaluate the LT performance. However, they require specialized equipment. A calibration
Jesús Velázquez   +3 more
doaj   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

System Software Testing of Laser Tracker Leica AT401

open access: yesGeoinformatics FCE CTU, 2014
The article introduces a group of instruments called laser trackers and specificallyfocuses on one of them - Leica AT401. At the Research Institute of Geodesy, To-pography and Cartography the instrument has been tested both in laboratory andoutdoor ...
Filip Dvořáček
doaj   +1 more source

Multi-layer Rotation Memory Model-based correlation filter for visual tracking

open access: yesFrontiers in Physics, 2022
Object tracking technology is of great significance in laser image processing. However, occlusion or similar interference during visual object tracking may reduce the tracking precision or even cause tracking failure.
Yufei Zhao   +8 more
doaj   +1 more source

Spatial biology in cancer epigenetics

open access: yesMolecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

Robust estimation method for raw observations from laser tracker

open access: yesAIP Advances
The triangulateration network adjustment method is a fundamental algorithm for constructing a measurement system composed of multiple laser trackers. This method is based on a prior-weight-matrix model considering varied accuracies of angle and distance ...
Yixin Ma   +7 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

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