Results 51 to 60 of about 308,735 (293)

Nonlinear response of a linear chain to weak driving [PDF]

open access: yesPhysical Review E, 2014
We study the escape of a chain of coupled units over the barrier of a metastable potential. It is demonstrated that a very weak external driving field with suitably chosen frequency suffices to accomplish speedy escape. The latter requires the passage through a transition state the formation of which is triggered by permanent feeding of energy from a ...
Hennig, Dirk   +3 more
openaire   +6 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Characteristics of new permanent magnetic eddy current drive system of the scraper conveyor

open access: yesThe Journal of Engineering, 2021
This study provides a new permanent magnetic eddy current drive system to solve the energy‐saving drive problem of the scraper conveyor working under bad conditions, including overload startup, severe abrasion and pollution.
Deyong Li, Shuang Wang
doaj   +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

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

滚子链传动的振动特性分析

open access: yesJixie chuandong, 2006
Roller chain drive is important mechanical drive. Roller chain drive is affected by vibration greatly. Main types and causes of roller chain drive are discussed.
荣长发, 张明路
doaj  

Chain Drive Electric Bike

open access: yesINTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT, 2022
-India is the second largest producer and manufacturer of two-wheelers in the world. It stands next to Japan and China in terms of the number of two- wheelers produced and domestic sales. The face of auto industry that was redefined with the invention of fuel- efficient technology is all set to see dawn of a new era in two-wheeler industry. It's not
openaire   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

open access: yesFEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Supply Chain Information Systems and Organisational Performance in Economic Turbulent Times

open access: yes, 2015
Supply Chain Information Systems and their impact on organisational performance has been studied by a number of studies. This study seeks to extend this body of knowledge by adopting a fresh lens to explore empirically the relationship between ...
Reid, Iain   +3 more
core  

Research on Tension Distributed Characteristic of Scraper Chain based on State Observer

open access: yesJixie chuandong, 2022
Aiming at the structural complexity of chain drive system and the difficulty in tension distribution analysis of the scraper chain,the tension distributed characteristics of the scraper chain are studied based on the design of state observer.A chain ...
Xing Zhang   +4 more
doaj  

Home - About - Disclaimer - Privacy