Results 41 to 50 of about 208,412 (295)

In-situ characterization of the thermal state of resonant optical interferometers via tracking of their higher-order mode resonances [PDF]

open access: yes, 2015
Thermal lensing in resonant optical interferometers such as those used for gravitational wave detection is a concern due to the negative impact on control signals and instrument sensitivity.
Adhikari, Rana X.   +11 more
core   +2 more sources

Thermal compensation for large volume metrology and structures

open access: yesInternational Journal of Metrology and Quality Engineering, 2017
Ideally metrology is undertaken in well-defined ambient conditions. However, in the case of the assembly of large aerospace structures, for example, measurement often takes place in large uncontrolled production environments, and this leads to thermal ...
Yang Bingru   +3 more
doaj   +1 more source

Effects of Cooling Systems on the Thermal Behaviour of Machine Tools and Thermal Error Models

open access: yesJournal of Machine Engineering, 2020
Today, cooling systems are increasingly applied to the structure of machine tools (MT). Unfortunately, to date there have been few efforts to precisely control these cooling systems, which inhibits the full utilisation of their potential to improve MT ...
Martin Mareš   +4 more
doaj   +1 more source

Research into Image Point Positioning Compensation of a High-Orbit Thermal Infrared Staring Camera

open access: yesApplied Sciences, 2023
The sight of the high-orbit thermal infrared staring camera is concentrated and sensitive to temperature changes, and therefore its image point positioning is key to ensuring the geometric quality of the thermal infrared staring image and eliminating the
Hui Xiao   +7 more
doaj   +1 more source

Passive Temperature-Compensating Technique for Microstructured Fiber Bragg Gratings [PDF]

open access: yes, 2008
The thermal drift of the characteristic wavelength of fiber Bragg gratings (FBGs) photowritten in the core of microstructured fibers (MOFs) is significantly reduced by inserting a liquid of suitable refractive index into their holes.
Bernard Dussardier   +7 more
core   +6 more sources

Digital Twin for Volumetric Thermal Error Compensation of Large Machine Tools

open access: yesSensors
Machine tool accuracy is greatly influenced by geometric and thermal errors that cause positioning deviations within its working volume. Conventionally, these two error sources are treated separately, with distinct procedures employed for their ...
Beñat Iñigo   +3 more
doaj   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

A particle swarm optimisation-based Grey prediction model for thermal error compensation on CNC machine tools [PDF]

open access: yes, 2015
Thermal errors can have a significant effect on CNC machine tool accuracy. The thermal error compensation system has become a cost-effective method of improving machine tool accuracy in recent years.
Abdulshahed, Ali   +2 more
core  

Decreased cold‐sensing function of the transient receptor potential channel TRPM8 from tailed amphibians

open access: yesFEBS Open Bio, EarlyView.
Despite frogs avoiding low temperatures, examination of four salamander species revealed that none avoided cold and all possessed cold tolerance. Functional analysis of TRPM8, a cold sensor, showed that all salamander TRPM8s had lost their cold sensitivity.
Tadahiro Sawao   +3 more
wiley   +1 more source

Real-time surrogate compensation architecture for machine-tool thermal error compensation with high-performance model

open access: yesDiscover Applied Sciences
Thermal error compensation based on high-performance (high-accuracy prediction of thermal errors under complex machining conditions and environments) models is of great significance to high-precision CNC machining. Currently, the high-performance thermal
Yubin Huang   +4 more
doaj   +1 more source

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