Results 21 to 30 of about 687,920 (318)

High-Sensitivity MEMS Shear Probe for Autonomous Profiling Observation of Marine Turbulence

open access: yesRemote Sensing, 2022
Autonomous profiling observation of full-depth marine turbulence is very important for ocean research. Anisotropic turbulence near the boundary layer needs to be observed well.
Renxin Wang   +14 more
doaj   +1 more source

Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC Microgrid

open access: yesEnergies, 2022
To realize the coordinated distribution of power in the multi-source system, maintain the charging balance among energy storage units, and improve the anti-interference capability of the bus voltage, a cascade control for an isolated PV-battery DC ...
Zhilong Yin   +4 more
doaj   +1 more source

Dynamic algebras with test

open access: yesJournal of Computer and System Sciences, 1987
The paper contributes to the so far developed theory of regular dynamic algebras [for a survey see, e.g., \textit{D. Kozen}, Lect. Notes Comput. Sci. 125, 1-11 (1981; Zbl 0482.03008)]. Test algebras provide an algebraic abstraction capturing logical aspects of if-then-else and while-do like programming constructs.
Vera Trnková, Jan Reiterman
openaire   +2 more sources

Research on Micro-Displacement Measurement Accuracy Enhancement Method Based on Ensemble NV Color Center

open access: yesMicromachines, 2023
This paper builds a corresponding micro-displacement test system based on an ensemble nitrogen-vacancy (NV) color center magnetometer by combining the correlation between a magnetic flux concentrator, a permanent magnet, and micro-displacement.
Yuqi Liu   +5 more
doaj   +1 more source

Testing Dynamic Models of Worker Effort [PDF]

open access: yes, 1992
This article derives three dynamic models of worker effort determi-nation, based on a shirking efficiency wage model, a compensating differentials model, and a union-firm bargaining model.
Manning, A   +4 more
core   +1 more source

Detection and Classification of Abnormities of First Heart Sound Using Empirical Wavelet Transform

open access: yesIEEE Access, 2019
It is expected that an automatic detection and classification algorithm for the abnormities of first heart sound (S1) can realize computer artificial intelligence diagnosis of some relative cardiovascular disease.
Haixia Li   +5 more
doaj   +1 more source

Design of a High-Bandwidth Uniform Radiation Antenna for Wide-Field Imaging with Ensemble NV Color Centers in Diamond

open access: yesMicromachines, 2022
Radiation with high-efficiency, large-bandwidth, and uniform magnetic field radiation antennas in a large field of view are the key to achieving high-precision wide-field imaging.
Zhiming Li   +5 more
doaj   +1 more source

Dynamic data-flow testing [PDF]

open access: yesCompanion Proceedings of the 36th International Conference on Software Engineering, 2014
Data-flow testing techniques have long been discussed in the literature, yet to date they are still of little practical relevance. The applicability of data-flow testing is limited by the complexity and the imprecision of the approach: writing a test suite that satisfy a data-flow criterion is challenging due to the presence of many test objectives ...
openaire   +3 more sources

Mechanical testing of unidirectional CFRP under high dynamic loading [PDF]

open access: yes, 2022
S.479-486A new method for tensile impact testing of UD-composites is presented in this paper. It allows the dynamic testing of unidirectional composites up to strain rates of about 400 l/s. Much emphasis was given on avoiding critical stresses as well as
Wulf, A., Hogen, R., Pannkoke, K.
core  

Dynamic specification tests for dynamic factor models [PDF]

open access: yesJournal of Applied Econometrics, 2019
SummaryWe derive computationally simple expressions for score tests of misspecification in parametric dynamic factor models using frequency domain techniques. We interpret those diagnostics as time domain moment tests which assess whether certain autocovariances of the smoothed latent variables match their theoretical values under the null of correct ...
Fiorentini, Gabriele, Sentana, Enrique
openaire   +3 more sources

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