Results 11 to 20 of about 173,631,140 (304)

Riboswitches: Structures and Mechanisms [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2010
A critical feature of the hypothesized RNA world would have been the ability to control chemical processes in response to environmental cues. Riboswitches present themselves as viable candidates for a sophisticated mechanism of regulatory control in RNA-based life.
Andrew D, Garst   +2 more
openaire   +2 more sources

Reconstruction of Wing Structure Deformation Based on Particle Swarm Optimization Ridge Regression

open access: yesInternational Journal of Aerospace Engineering, 2022
In this paper, a typical airfoil aluminum plate structure is taken as the research object. A structural deformation monitoring and reconstruction method, PSO-RR (particle swarm optimization-ridge regression) algorithm, is proposed. A variety of different
Xinyi Wu, Zhiwei Xu, Jie Zeng
doaj   +1 more source

Structures and mechanisms of glycosyltransferases [PDF]

open access: yesGlycobiology, 2005
Glycosyltransferases (GTs) catalyze the transfer of a sugar moiety from an activated donor sugar onto saccharide and nonsaccharide acceptors. A sequence-based classification spreads GTs in many families thus reflecting the variety of molecules that can be used as acceptors.
Breton, C.   +4 more
openaire   +2 more sources

Nano-frictional mechano-reinforcing porous nanowires scaffolds

open access: yesFriction, 2023
Artificial biomaterials with dynamic mechano-responsive behaviors similar to those of biological tissues have been drawing great attention. In this study, we report a TiO2-based nanowire (TiO2NWs) scaffolds, which exhibit dynamic mechano-responsive ...
Licheng Hua   +8 more
doaj   +1 more source

Mathematical modeling of the kinematics of chemical droplets when pulverizing with a sprayer based on a new two-fluid turbulent model [PDF]

open access: yesE3S Web of Conferences, 2021
A mathematical modeling and numerical solution of the motion of the droplets of chemical reagents outflowing from the pneumatic sprayer are developed in the article. A new efficient two-fluid turbulence model is used to simulate turbulent flow.
Malikov Zafar   +3 more
doaj   +1 more source

Futures in Mechanics of Structures and Materials [PDF]

open access: yes, 2008
Futures in Mechanics of Structures and Materials is a collection of peer-reviewed papers presented at the 20th Australasian Conference on the Mechanics of Structures and Materials (ACMSM20, University of Southern Queensland, Toowoomba, Queensland ...

core   +1 more source

Cyclic pressure on compression-moulded bioresorbable phosphate glass fibre reinforced composites

open access: yesMaterials & Design, 2016
The use of thermoplastic composites based on poly(lactic) acid and phosphate glass fibres over metallic alloys for clinical restorative treatment is highly beneficial due to their biocompatibility and biodegradability.
Fernando Barrera Betanzos   +4 more
doaj   +1 more source

Design and Structure Optimization of Arresting Gear Based on Magnetorheological Damper

open access: yesAerospace, 2023
The UAV cluster combat puts forward higher requirements for short-distance arresting gears for multitype aircraft. Based on magnetorheological technology, an arresting gear was designed, and the structural parameters of the MR damper were optimized.
Jiayu Hao   +4 more
doaj   +1 more source

Interpolation-Based Modeling Methodology for Efficient Aeroelastic Control of a Folding Wing

open access: yesInternational Journal of Aerospace Engineering, 2021
The aeroelastic model of a folding wing varies with different configurations, so it actually represents a parameter-varying system. Firstly, a new approach based on interpolation of local models is proposed to generate the linear parameter-varying model ...
Chengyu Yue, Yonghui Zhao
doaj   +1 more source

Structured Mechanical Collage [PDF]

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2014
We present a method to build 3D structured mechanical collages consisting of numerous elements from the database given artist-designed proxy models. The construction is guided by some graphic design principles, namely unity, variety and contrast. Our results are visually more pleasing than previous works as confirmed by a user study.
Zhe Huang 0004   +3 more
openaire   +4 more sources

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