Results 21 to 30 of about 85,700 (265)

Optimizing Power Density in Partially Coated Cantilever Beam Energy Harvesters: A Cost-Effective Design Strategy

open access: yesEnergies
Cantilever beams with piezoelectric coating are the most widely used form of strain-driven energy harvesting. Almost all prior research on cantilever beam shapes aimed at enhancing energy output accounts for beams fully coated with piezoelectric ...
Md. Mohiuddin   +3 more
doaj   +1 more source

High-Efficient Calculation Method for Sensitive PDGEs of Five-Axis Reconfigurable Machine Tool

open access: yesMachines, 2021
Sensitive geometric errors of a machine tool have significant influence on machining accuracy, and it is important to identify them. Complex modeling and analysis must be carried out to identify the sensitive geometric errors of a five-axis machine tool ...
Zhanqun Song   +4 more
doaj   +1 more source

Efficient Configuration Space Construction and Optimization for Motion Planning

open access: yesEngineering, 2015
The configuration space is a fundamental concept that is widely used in algorithmic robotics. Many applications in robotics, computer-aided design, and related areas can be reduced to computational problems in terms of configuration spaces. In this paper,
Jia Pan, Dinesh Manocha
doaj   +1 more source

Brain Processing of Complex Geometric Forms in a Visual Memory Task Increases P2 Amplitude

open access: yesBrain Sciences, 2020
We study the cognitive processing of visual working memory in three different conditions of memory load and configuration change. Altering this features has been shown to alter the brain’s processing in memory tasks.
Héctor A. Cepeda-Freyre   +3 more
doaj   +1 more source

Configuration of Zeros of Isochronous Vector Fields of Degree 5

open access: yesComplexity, 2021
In this paper, we give the algebraic conditions that a configuration of 5 points in the plane must satisfy in order to be the configuration of zeros of a polynomial isochronous vector field.
Julio Cesar Avila   +2 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

An optimization model for synchronous road geometric and pavement enhancements

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2021
A synchronous optimization model for rehabilitation of existing two-way two-lane (TWTL) highways is proposed in this paper considering geometric modification and existing pavement rehabilitation.
Mohammad Mahanpoor   +2 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Determination of the Strain-Free Configuration of Multispan Cable

open access: yesShock and Vibration, 2015
For building a reasonable finite element geometric model, a method is proposed to determine the strain-free configuration of the multispan cable. The geometric conditions (the end conditions and the unstretched length conditions) as constraints for the ...
Chuancai Zhang, Qiang Guo, Xinhua Zhang
doaj   +1 more source

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