Results 31 to 40 of about 24,640,884 (293)

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

Sakarya 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

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, Zongmin Zhu, Jianyu Ding, Taiheng Shi   +3 more
doaj   +1 more source

Application of Raman spectroscopy in breast cancer surgery [PDF]

Kosin Medical Journal, 2023
The incidence of breast cancer is increasing worldwide. As cancer screening has become more widespread, the rate of early breast cancer detection has increased and treatment methods have changed.
Yikeun Kim, Sung Ui Jung, Jinhyuk Choi
doaj   +1 more source

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

Vestnik 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, Bozhong Cong, Dongqi Zhang, Xiaohua Liu, Shengqiang Shen   +4 more
doaj   +1 more source

Spectrum, 1979[?] [PDF]

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

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

Journal 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, Yuusuke ISHIMI, Orie TAMURA, Wataru SUGIYAMA   +3 more
doaj   +1 more source

Spectrum Analysis. [PDF]

Journal of the American Chemical Society, 1909
n ...
openaire   +1 more source

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

Frontiers 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, Changmin Zhang, Rui Zhu, Jinchi Li, Zeyu Wang   +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

IEEE 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, Chuang Liu, Peilin Liu, Xiaodong Sun   +3 more
doaj   +1 more source

Performance analysis of spectrum sensing with multiple primary users [PDF]

, 2012
The effect of multiple primary users on spectrum-sensing performance is investigated. Different models for primary user traffic are considered. The effects of different system parameters on sensing accuracy are examined.
Jiang, Lingge, Zhao, Bo, Chen, Yunfei, He, Chen   +3 more
core   +1 more source