Results 41 to 50 of about 350,111 (225)

Degree reduction of Rational Bézier curves by hybrid optimization method

open access: yesResults in Applied Mathematics, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Research on Climb Performance Optimization of Small Hybrid‑Electric Aircraft

open access: yesNanjing Hangkong Hangtian Daxue Xuebao
In order to analyze the influence of degree of hybridization and the number of electric motors on the climb performance of small hybrid‑electric aircraft and the selection of different performance parameters in the climb stage, according to the ...
CHU Shuanglei, YANG Jing, WEI Zhiqiang
doaj   +1 more source

Admixture of evolutionary rates across a butterfly hybrid zone

open access: yeseLife, 2022
Hybridization is a major evolutionary force that can erode genetic differentiation between species, whereas reproductive isolation maintains such differentiation.
Tianzhu Xiong   +3 more
doaj   +1 more source

Structural Design and Analysis of Hybrid Drive Multi-Degree-of-Freedom Motor

open access: yesMicromachines, 2022
Piezoelectric-driven multi-degree-of-freedom motors can turn off self-lock, withstand high and low temperatures, are small in size and compact in structure, and can easily achieve miniaturization. However, they have a short life cycle and limited applications.
Zheng Li   +5 more
openaire   +3 more sources

Miniaturization of 90-degree hybrid optical couplers

open access: yes, 2022
Here we explore the limits of miniaturization of an efficient 90-degree hybrid coupler on the InP photonic integration platform, working in the L, C and S bands, with respect to their figures of merit. We investigate the main effects responsible for the degradation of the performance of the devices, and establish the minimal dimension that such devices
Miranda, Alessio   +3 more
openaire   +1 more source

Whole‐genome analyses provide no evidence for dog introgression in Fennoscandian wolf populations

open access: yesEvolutionary Applications, 2021
Hybridization and admixture can threaten the genetic integrity of populations and be of particular concern to endangered species. Hybridization between grey wolves and dogs has been documented in many wolf populations worldwide and is a prominent example
Linnéa Smeds   +5 more
doaj   +1 more source

Modelling of Functional Interaction of Hybrid Energy Storage System Battery Units

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2023
Optimization of technical and economic parameters of electric power storage devices is a necessary condition for their widespread use. The article develops a general approach and proposes a methodology for assessing the economic efficiency of ...
K. V. Dobrego, I. A. Koznacheev
doaj   +1 more source

Nature of vibrational eigenmodes in topologically disordered solids [PDF]

open access: yes, 2002
We use a local projectional analysis method to investigate the effect of topological disorder on the vibrational dynamics in a model glass simulated by molecular dynamics. Evidence is presented that the vibrational eigenmodes in the glass are generically
A. Barrat   +27 more
core   +1 more source

Study of natural hybridization between Alnus incana (L.) Moench. and Alnus glutinosa (L.) Gaertn.

open access: yesJournal of Forest Science, 2007
Variation of metric and qualitative characteristics of A. incana (L.) Moench. and A. glutinosa (L.) Gaertn. has been studied in 10 natural populations in West Siberia, Russia and the Czech Republic in connection with the problem of natural hybridization.
Е. V. Banaev, V. Bažant
doaj   +1 more source

Modeling and Estimation for Real-Time Microarrays [PDF]

open access: yes, 2008
Microarrays are used for collecting information about a large number of different genomic particles simultaneously. Conventional fluorescent-based microarrays acquire data after the hybridization phase.
Hassibi, Arjang   +2 more
core   +2 more sources

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