Results 21 to 30 of about 2,364,234 (301)

Topological approach to derive the global Hawking temperature of (massive) BTZ black hole

open access: yesPhysics Letters B, 2020
In this paper, we study the Hawking temperature of the BTZ black hole based on the purely topological method proposed by Robson, Villari, and Biancalana (RVB) [Phys. Rev. D 99, 044042 (2019)].
Yu-Peng Zhang, Shao-Wen Wei, Yu-Xiao Liu
doaj   +1 more source

Investigation of the Characteristic Nighttime Temperature of Potential Caves on Mars

open access: yesJournal of Astronomy and Space Sciences, 2022
By providing an environment where energetic particles and micrometeorites can not penetrate, caves on Mars may serve as a human shelter in future Mars explorations.
Nuri Park, Ik-Seon Hong, Jongil Jung
doaj   +1 more source

Drift characteristic analysis of additive manufactured Ag NPs-PEDOT:PSS flexible temperature sensor

open access: yesResults in Engineering, 2022
Additive manufactured flexible sensors have prospect applications in wearable devices, healthcare, soft robotics, and metaverse scenarios. However, there is still performance gaps between the emerging additive manufactured flexible sensors and ...
Xuepei Wang   +3 more
doaj   +1 more source

Microgyroscope Temperature Effects and Compensation-Control Methods

open access: yesSensors, 2009
In the analysis of the effects of temperature on the performance of microgyroscopes, it is found that the resonant frequency of the microgyroscope decreases linearly as the temperature increases, and the quality factor changes drastically at low ...
Hongsheng Li   +3 more
doaj   +1 more source

ON THE MODIFICATION OF TEMPERATURE CHARACTERISTICS. I [PDF]

open access: yesJournal of General Physiology, 1935
The temperature characteristics for frequency of pulsation in isolated cloacal ends of Holothuria tubulosa are µ = 20,400 from 10 to 20°, 8,000 from 20 to 30°. The critical temperatures 10°, 20°, 30° are related to thermal conditions in the environment. In sea water with doubled NaCl content µ = 8,000 from 10 to 30°.
openaire   +2 more sources

An insight into spin-chain magnetism through Moessbauer spectroscopic investigations in Eu-doped Ca3Co2O6 and Ca3CoRhO6

open access: yes, 2008
We report the results of 151Eu Moessbauer effect and magnetization measurements in the Eu-doped Ca3Co2O6 and Ca3CoRhO6, which are of great current interest in the fields of spin-chain magnetism and geometrical frustration.
A. Maignan   +3 more
core   +1 more source

The influence of silicification on coal low-temperature oxidation characteristic parameters

open access: yesMeikuang Anquan, 2022
In order to study the effect of silicification on low temperature oxidation characteristics of coal, scanning electron microscopy(SEM) was used to observe the difference of pore structure between silicified coal and non-silicified coal; the temperature ...
JIN Yongfei, ZHANG Guang, GUO Jun, LIU Yin, YAN Hao
doaj   +1 more source

Magnetic Properties of a Pressure-induced Superconductor UGe$_2$

open access: yes, 2001
We performed the DC-magnetization and neutron scattering experiments under pressure {\it P} for a pressure-induced superconductor UGe$_2$. We found that the magnetic moment is enhanced at a characteristic temperature {\it T}$^{*}$ in the ferromagnetic ...
Amaya, K.   +10 more
core   +1 more source

Temperature Characteristics Modeling for GaN PA Based on PSO-ELM

open access: yesMicromachines
In order to solve the performance prediction and design optimization of power amplifiers (PAs), the performance parameters of Gallium Nitride high-electron-mobility transistor (GaN HEMT) PAs at different temperatures are modeled based on the particle ...
Qian Lin, Meiqian Wang
doaj   +1 more source

Magnetic field dependence of the temperature derivative of resistivity: a probe for distinguishing the effects of pseudogap and superconducting fluctuations in cuprates

open access: yes, 2006
We have studied the magnetic field dependence of the temperature derivative of the resistivity, dr(H,T)/dT, of a number of Y1-xCaxBa2(Cu1-yZny)3O7-d crystalline thin films over a wide range of sample compositions.
Bucher   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy