Results 61 to 70 of about 12,187,245 (343)

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

Vibration Analysis of Variable-Thickness Multi-Layered Graphene Sheets

open access: yesApplied Sciences
This study investigates the vibrational characteristics of multi-layered graphene sheets with variable thickness (VTGSs) by using molecular dynamics (MD) simulations.
Yunus Onur Yildiz   +4 more
doaj   +1 more source

Design and Modal Analysis of Gravity Dams by Ansys Parametric Design Language

open access: yesWalailak Journal of Science and Technology, 2014
For find the optimal shape of concrete gravity dams including dam-water-foundation rock interaction, model of 2-dimensional finite elements that include the dam, reservoir and foundation is provided using the finite element software ANSYS in the most ...
Shiva KHOSRAVI, Mohammad Mehdi HEYDARI
doaj   +1 more source

Damage Identification of Semi-Rigid Joints in Frame Structures Based on Additional Virtual Mass Method

open access: yesSensors, 2022
In civil engineering, the joints of structures are complex, and their damage is generally hard to be detected. Due to the insensitivity of structural modal information to local joint damage, this paper presents a method based on additional virtual mass ...
Xinhao An   +4 more
doaj   +1 more source

Structural Analysis of a Dragonfly Wing [PDF]

open access: yes, 2010
Dragonfly wings are highly corrugated, which increases the stiffness and strength of the wing significantly, and results in a lightweight structure with good aerodynamic performance.
Jongerius, S.R., Lentink, D.
core   +2 more sources

Why frequencies are natural [PDF]

open access: yesBehavioral and Brain Sciences, 2007
AbstractResearch in mathematical cognition has shown that rates, and other interpretations of x/y, are hard to learn and understand. On the other hand, there is extensive evidence that the brain is endowed with a specialized mechanism for representing and manipulating the numerosities of sets – that is, frequencies.
openaire   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

The Scale Effect Study on the Transient Fluid–Structure Coupling Performance of Composite Propellers

open access: yesJournal of Marine Science and Engineering, 2022
In order to predict the fluid–structure coupling performance of a full-scale composite propeller under a wake flow field behind a full ship, a bidirectional transient fluid–structure coupling algorithm was established.
Zheng Huang   +4 more
doaj   +1 more source

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Static and modalanalysis of Solidarity Bridge in Płock

open access: yesBudownictwo i Architektura, 2016
Cable-stayed bridges are stunning structures, which thanks to their dimensions and shapes fascinate not a single observer. Designing such an object is awesome challenge for designers.
Jarosław Bęc, Michał Jukowski
doaj   +1 more source

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