Results 11 to 20 of about 12,197 (302)
Electron density measurement of a lightning stepped leader by oxygen spectral lines
AIP Advances, 2018 The time-resolved spectrum of a lightning stepped leader in downward process has been obtained by using a slitless spectrograph. Neutral oxygen and nitrogen spectral lines in the near infrared region are observed in the spectra.
Jianyong Cen +6 more
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Stepped annealing chaotic neural network model for the channel assignment problem
Tongxin xuebao, 2008 Based on the stepped annealing method used in transient chaotic neural network,a chaotic neural network model had been improved. The dividing point in the new model was chosen according to the change of the corresponding Lyapunov exponent,and made sure ...
ZHU Xiao-jin +3 more
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Correction of Channel Imbalance for MIMO SAR Using Stepped-Frequency Chirps [PDF]
International Journal of Antennas and Propagation, 2014 To simultaneously achieve two-dimensional high resolution and wide swath in synthetic aperture radar (SAR), azimuth MIMO structure combined with stepped-frequency chirp signals was developed via splitting the antenna into N subapertures.
Xiulian Luo +4 more
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Prediction of the transition nappe/skimming flow on a stepped channel [PDF]
Journal of Hydraulic Research, 1996 On a stepped channel, two distinct flow regimes may occur : nappe flow for low discharges and flat slopes, and skimming flow for larger flow rates. A simple analytical method to predict the onset of skimming flow is presented. The method is based upon the change of momentum direction at the impact of the jet on the downstream step.
Chanson, Hubert, H. Chanson
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An investigation into the exploratory use of additive manufacturing in stepped spillway model testing in open channel flow [PDF]
MATEC Web of ConferencesStepped spillways provide an excellent form of energy dissipation and are used in many locations around the world. Effective designs are crucial in improving protection to downstream erosion and providing economic benefits to the stilling basin design ...
Benham Robert, Rehman Fayyaz
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Initial steps in the opening of a Shaker potassium channel [PDF]
Proceedings of the National Academy of Sciences, 2012 The structural model of a K V (K + -selective, voltage-gated) channel in the open state is known (Protein Data Bank ID code 2R9R). Each subunit of the channel has four negatively charged residues distributed in the transmembrane segments S1, S2, and S3 that bind to and facilitate the movement
Toshinori, Hoshi, Clay M, Armstrong
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Flow resistance in mountainous streams with stepped channel
Shui kexue jinzhan, 2019 The configuration of stepped channels in mountainous streams is influenced by the complex hydraulic characteristics,like the inflow,sediments and the larger slope river-bed.
LUO Ming +4 more
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IEEE Journal of the Electron Devices Society, 2022 A novel p-GaN gate AlGaN/GaN high electron mobility transistor (HEMT) structure with a stepped hybrid GaN/AlN buffer layer (S-HEMT) is proposed and simulated by the Sentaurus TCAD in this paper.
Yuan Wang +5 more
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Analisis Perbandingan Pola Aliran Pada Bangunan Pelimpah Ogee Dan Stepped Dengan Model Fisik 2D [PDF]
, 2021 A spillway building is usually a structure followed by a steep channel. Flow velocity is very dependent on the slope of the bottom channel which causes super critical flow.
Tugiono, Subuh +2 more
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A study of the debris flow activity on the one-stepped channel slope
Soil and Water Research, 2015 The purpose of this study is to evaluate the behaviour and mechanism of debris flow on various slopes through numerical simulation. The numerical simulation was performed using the Finite Difference Element Method based on the equation of mass ...
Sungduk KIM, Hojin LEE
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