Results 51 to 60 of about 918,929 (287)

Heat capacity and pairing transition in nuclei

open access: yes, 2001
A simple model based on the canonical-ensemble theory is outlined for hot nuclei. The properties of the model are discussed with respect to the Fermi gas model and the breaking of Cooper pairs.
A. Bohr   +21 more
core   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Research on working principle and cross-track cutting characteristic of the axis-tilted rock-breaking tool

open access: yesAdvances in Mechanical Engineering, 2019
Concentric-track cutting method of a conventional polycrystalline diamond compact bit makes the bit suffer from inadequate rock-penetrating capacity and severely hinders the improvement of rock-breaking efficiency.
Haitao Ren   +5 more
doaj   +1 more source

Development and prospect of direct‐current circuit breaker in China

open access: yesHigh Voltage, 2021
The direct‐current circuit breaker (DCCB) is the most ideal choice for DC fault isolation in DC grids. Despite a late start, China's research and development on the DCCB have made outstanding achievements.
Weijiang Chen   +11 more
doaj   +1 more source

The Structural and Electromagnetic Comparative Analysis of the Bifilar-Meander-Type Winding Method of Superconducting DC Circuit Breaker

open access: yesEnergies, 2023
As the utilization of DC systems increases worldwide, the importance of DC cutoff technology is increasing. We proposed a hybrid DC cutoff technology combining an SFCL (superconducting fault-current-limiter) and a mechanical DC circuit breaker.
Sang-Yong Park   +3 more
doaj   +1 more source

Nonadditivity effects in classical capacities of quantum multiple-access channels

open access: yes, 2008
We study classical capacities of quantum multi-access channels in geometric terms revealing breaking of additivity of Holevo-like capacity. This effect is purely quantum since, as one points out, any classical multi-access channels have their regions ...
A. E. Allahverdyan   +12 more
core   +1 more source

A numerical model for the simulation of a solitary wave in a coastal region [PDF]

open access: yes, 2015
In this paper we propose a numerical model for the simulation of the tsunami wave propagation on coastal region. The model can simulate the wave transformation due to refraction, shoaling, diffraction and breaking phenomena that take place in the surf ...
CAMILLI, FLAMINIA, LASAPONARA, FRANCESCO
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

open access: yesMolecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice   +16 more
wiley   +1 more source

Calculation Method and Influencing Factors of the Maximum Breaking Current of SF6 Circuit Breaker

open access: yesIEEE Access
At present, there is a lack of research on the evaluation of the maximum breaking current of circuit breakers in arc simulation of SF6 circuit breakers.
Li Duanjiao   +7 more
doaj   +1 more source

Multi-combination exploiting technique of ultra-heavy oil reservoirs with deep and thin layers in Shengli Oilfield

open access: yesPetroleum Exploration and Development, 2010
There isn't any mature technique to develop ultra-heavy oil reservoirs in the Shengli Oilfield because of large oil viscosity, deep and thin layer, high rate of resin and asphaltene.
Lei Tao   +4 more
doaj   +1 more source

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