Results 41 to 50 of about 1,633,406 (302)

A Thermal Time-Constant Experiment [PDF]

open access: yes, 2003
A simple experiment, well suited for an undergraduate course in mechatronics, is described in which thermal time-constant information is extracted from a heater-blower table-top system.
Brucker, Kyle   +2 more
core   +1 more source

Thermodynamics of de Sitter Black Holes: Thermal Cosmological Constant

open access: yes, 2006
We study the thermodynamic properties associated with the black hole event horizon and the cosmological horizon for black hole solutions in asymptotically de Sitter spacetimes.
J. M. Maldacena   +4 more
core   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Effects of Constant versus Fluctuating Temperatures on Fitness Indicators of the Aphid Dysaphis plantaginea and the Parasitoid Aphidius matricariae

open access: yesInsects, 2021
Testing fluctuating rather than constant temperatures is likely to produce more realistic datasets, as they are ecologically more similar to what arthropods experience in nature. In this study, we evaluated the impact of three constant thermal regimes (7,
Kévin Tougeron   +3 more
doaj   +1 more source

Thermal conductivity and dielectric constant of silicate materials [PDF]

open access: yes, 1968
Report on the thermal conductivity and dielectric constant of nonmetallic materials evaluates the mechanisms of heat transfer in evacuated silicate powders and establishes the complex dielectric constant of these materials.
Simon, I., Wechsler, A. E.
core   +1 more source

Calculation of the Anisotropic Coefficients of Thermal Expansion: A First-Principles Approach [PDF]

open access: yes, 2019
Predictions of the anisotropic coefficients of thermal expansion are needed to not only compare to experimental measurement, but also as input for macroscopic modeling of devices which operate over a large temperature range.
Løvvik, Ole M., Pike, Nicholas A.
core   +2 more sources

Instabilities in thermal gravity with a cosmological constant [PDF]

open access: yesPhysics Letters B, 2008
3 pages.
Brandt, F. T., Frenkel, J.
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Non-homogeneity effect on the vibration of the rectangular visco-elastic plate subjected to the linear temperature effect with quadratic thickness variation in both directions

open access: yesActa Polytechnica
The present work investigates the effect of non-homogeneity on the vibration of a rectangular visco-elastic plate. The plate is subjected to linear temperature variation in the x-direction with quadratic thickness variation in both directions.
Sudhanshu Aggarwal
doaj   +1 more source

Studying thermal conductivity of magnetic nanofluids in constant magnetic field

open access: yesMATEC Web of Conferences, 2017
The thermal conductivity of magnetic nanofluids in a constant magnetic field is investigated. The concentration dependence of the thermal conductivity coefficient of magnetic fluids based on water and iron oxide nanoparticles Fe3O4 in a constant magnetic
Pryazhnikov Maxim   +3 more
doaj   +1 more source

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