Results 51 to 60 of about 968,579 (338)

Current-Based Analysis and Validation of a Wheel–Soil Interaction Model for the Trafficability of a Planetary Rover

open access: yesAerospace
The assessment of trafficability for planetary rovers in relation to non-geometric hazards is a crucial issue in deep space exploration. This study relies on terramechanics theory and incorporates actual data from Mars soil and rover parameters to ...
Yan Shen   +5 more
doaj   +1 more source

Estimation of Traffic Matrices for LRD Traffic

open access: yes, 2012
The estimation of traffic matrices in a communications network on the basis of a set of traffic measurements on the network links is a well-known problem, for which a number of solutions have been proposed when the traffic does not show dependence over time, as in the case of the Poisson process.
P. L. Conti   +2 more
openaire   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Geo-informatics data acquisition instrument for assessment of avalanche risk and trafficability: STMET [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems
Off-road soil conditions and snowpack strata data are traditionally acquired with cone penetrometers and ramsonde rods to assess trafficability and snow stability. The Snow and Terrain Mobility Evaluation Tool (STMET) has been designed and developed as a
G. Kumar, Z. Singh
doaj   +1 more source

Measuring Traffic

open access: yesStatistical Science, 2007
Published in at http://dx.doi.org/10.1214/07-STS238 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Bickel, Peter J.   +5 more
openaire   +4 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

On the trafficability of drained peatlands in harvesting

open access: yesSilva Fennica, 1975
During the next decade there will be a marked increase in the allowable cut in drained peatlands. At the same time, the mechanization in logging proceeds, and in short-distance haulage the use of forwarders will increase.
Hannelius, Simo
doaj   +1 more source

Relationships between land use, fertility and andisol behaviour : examples from volcanic islands [PDF]

open access: yes, 1999
Soils developed on voIcanic parent materials have many intrinsic qualities favourable to cropping. Howerer, fertility decreases dramatically when they are badly managed.
Dorel, Marc, Perret, Sylvain
core   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Design and Dynamic Simulation Analysis of a Wheel–Track Composite Chassis Based on RecurDyn

open access: yesWorld Electric Vehicle Journal, 2021
The traditional chassis has the problems of low trafficability and poor stability under complex and changeable unstructured conditions. Thus, a wheel rail composite chassis is proposed. The chassis had a tracked travel mechanism at the front wheels and a
Yaowei Li   +4 more
doaj   +1 more source

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