Results 31 to 40 of about 26,008,733 (290)

Editorial Note: Impact of COVID-19 on Spectrum operations

open access: yes, 2020
To support our authors, reviewers and editors during the COVID-19 pandemic, the Spectrum Editorial Board has relaxed its timelines for the publication of this most recent issue (Issue 5).  We are working with our authors on their Issue 5 submissions,
Editorial Board, Spectrum
core   +1 more source

Near-Infrared Reflectivity of Superconducting FeSe Thin Films

open access: yesIEEE Photonics Journal, 2019
We present an investigation on the intrinsic optical properties of superconducting FeSe thin films deposited on CaF2 substrates. It is found that the samples respond strongly to the near-infrared (NIR) irradiation in different temperature regimes.
Yanmin Zhang   +12 more
doaj   +1 more source

Study on Fatigue Spectrum Analysis and Reliability Analysis of Multilayer Flexible Riser

open access: yesJournal of Marine Science and Engineering, 2022
Multilayer composite flexible risers have been widely used in engineering. However, this type of structure is complex, as there are influences between layers. Moreover, a range of uncertain factors need to be considered in fatigue analysis. Therefore, it
Jianxing Yu   +5 more
doaj   +1 more source

Experimental study on the effect of an oyster reef on the nonlinear characteristics of irregular waves

open access: yesFrontiers in Marine Science, 2022
As a “marine ecological engineer”, the oyster reefs not only perform important ecological functions, but also reduce the damage caused by waves to protective structures such as seawalls.
Beihan Jiang   +8 more
doaj   +1 more source

Spectrum, 1979[?] [PDF]

open access: yes, 1979
Inaugural issue of Spectrum literary magazinehttps://nwcommons.nwciowa.edu/spectrum/1000/thumbnail ...
Spectrum Contributors,
core   +3 more sources

Sound Level Measurement and Spectrum Analysis in Full and Empty Various Social Spaces

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
The noise seen in different areas throughout human history has turned into a frequently complained problem with the increasing industry and technology. Unfortunately, the problem of noise has become a part of social life today.
Serden Başak, Kazım Onur Demirarslan
doaj   +1 more source

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

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