Results 31 to 40 of about 821,881 (278)

Tribology of rail bogie

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2018
Railway bogie is the basic element that determines the force, kinematic, power and other parameters of the rolling stock, and its movement in the railway track has not been studied enough.
D. P. Markov
doaj   +1 more source

Shilnikov problem in Filippov dynamical systems

open access: yes, 2019
In this paper we introduce the concept of sliding Shilnikov orbits for $3$D Filippov systems. In short, such an orbit is a piecewise smooth closed curve, composed by Filippov trajectories, which slides on the switching surface and connects a Filippov ...
Novaes, Douglas D., Teixeira, Marco A.
core   +1 more source

Predicting Low Sliding Friction in Al-Steel Reciprocating Sliding Experiment after a Controlled Grinding of the Steel Counterface

open access: yesLubricants
The aim of this study was to identify the areal surface parameters that correlated with lowering of sliding friction. Different ground surfaces were created on stainless steel and the lubricated sliding friction generated at the contact interface with a ...
Gopakumar Parameswaran   +2 more
doaj   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

MOVEMENT OF RIGID AUTOMOBILE WHEEL AT ACTION OF TWISTING MOMENT AND PUSHING FORCE [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2011
The additional mode of wheel rolling at which the wheel is influenced by the twisting moment and pushing force is determined. In this mode the tangent reaction can have both a positive and negative direction.
M. Podrіgalo, N. Potapov
doaj  

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Microtubule sliding in swimming sperm flagella: direct and indirect measurements on sea urchin and tunicate spermatozoa [PDF]

open access: yes, 1991
Direct measurements of microtubule sliding in the flagella of actively swimming, demembranated, spermatozoa have been made using submicron diameter gold beads as markers on the exposed outer doublet microtubules.
Brokaw, Charles J.
core  

General contact mechanics theory for randomly rough surfaces with application to rubber friction

open access: yes, 2015
We generalize the Persson contact mechanics and rubber friction theory to the case where both surfaces have surface roughness. The solids can be rigid, elastic or viscoelastic, and can be homogeneous or layered.
Persson, Bo N. J., Scaraggi, Michele
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

codecheckers/slides: CODECHECK Slides

open access: yes, 2020
Slides and talks on the CODECHECK project, see project website at https://codecheck.org.uk/.
Nüst, Daniel, Eglen, Stephen
openaire   +1 more source

Home - About - Disclaimer - Privacy