Results 31 to 40 of about 25,026,571 (299)

500-year growth cycle of stalagmite and its response to regional hydrological changes in Heshang cave, western Hubei

open access: yes地质科技通报, 2022
Stalagmitesare important high-resolution paleoclimate archives, and possess abundant physical, chemical and microbial paleoclimate proxies. Among of them, the growth rate (GR)of stalagmites quite popular because its easy access and non-destruction ...
Cuizhen Zhang   +3 more
doaj   +1 more source

An undamped oscillation model with twodifferent contact angles for a spherical dropletimpacting on solid surface

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2020
In order to further elucidate the dynamic theory of droplet oscillating on solid surface, a new handling method of contact angle of the droplet during the process of the oscillation was founded, which is based on the spherical model.
Shi Chen   +4 more
doaj   +1 more source

Numerical Study on the Influence of the Oscillating Surface Oxygen Concentration on the Bioconvection in a Two-Dimensional Deep Chamber

open access: yesJournal of Fluid Science and Technology, 2010
Numerical study on the two-dimensional bioconvection in a deep chamber was carried out under the condition of the oscillating surface oxygen concentration to obtain the basic data for the control of bioconvection by using the surface oxygen concentration.
Masahide NAKAMURA   +3 more
doaj   +1 more source

Thickness Variation Characteristics of Tidal Rhythmites—An Example From the Pinghu Formation, Xihu Sag, East China Sea Shelf Basin

open access: yesFrontiers in Earth Science, 2022
The Pinghu Formation of the Xihu Sag in the East China Sea shelf basin is influenced by tidal processes, but few studies have focused on its tidal rhythmites.
Siqi Liu   +4 more
doaj   +1 more source

Fault Diagnosis Scheme for Open-Circuit Fault in N+2 Converter of Six-Phase SRM Using Midpoint Current Spectrum Analysis

open access: yesIEEE Access, 2022
In this paper, a six-phase $\text{N}+2$ power converter for switched reluctance motor is studied. An open-circuit fault diagnosis and faulty devices location scheme based on midpoint current spectrum analysis is proposed.
Minjun Guan   +3 more
doaj   +1 more source

Effect of Lactobacillus plantarum PS128 on neuromuscular efficiency after a half-marathon

open access: yesFrontiers in Physiology, 2023
Introduction:Lactobacillus plantarum PS128 (PS128) could be considered an antioxidant supplement to reduce muscle fatigue and improve exercise capacity recovery after vigorous exercise.Purpose: The purpose of this study is to investigate the effect of ...
Chia-Hsien Yu   +7 more
doaj   +1 more source

Analysis of Satellite Compass Error’s Spectrum

open access: yesSensors, 2020
The satellite compass is one of new variants of satellite navigational devices. Is it still treated with caution on International Convention for the Safety of Life at Sea (SOLAS) vessels, but has become popular on the fishing vessels and pleasure crafts.
Andrzej Felski   +3 more
doaj   +1 more source

Spectrum Analysis of Signal in Wolfram Mathematica System

open access: yesНаука и техника, 2021
The purpose of this paper is a spectrum analysis of signals of various nature, construction of the signal scalogram using Morlet wavelet, modification of the scalogram to obtain a more informative graphic representation of the signal.
M. A. Hundzina
doaj   +1 more source

Wildfire Detection Using Sound Spectrum Analysis Based on the Internet of Things

open access: yesItalian National Conference on Sensors, 2019
Wildfire is a sudden and hazardous natural disaster. Currently, many schemes based on optical spectrum analysis have been proposed to detect wildfire, but obstacles in forest areas can decrease the efficiency of spectral monitoring, resulting in a ...
Shuo Zhang   +3 more
semanticscholar   +1 more source

Machine Learning-Based Multifunctional Optical Spectrum Analysis Technique

open access: yesIEEE Access, 2019
A machine learning (ML)-based multifunctional optical spectrum analysis technique is proposed to perform not only the conventional analysis functions but also the extended analysis functions, including center wavelength detection, optical signal-to-noise
Danshi Wang   +6 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy