Results 31 to 40 of about 1,482,813 (348)

Frequency Dependent Rheology of Vesicular Rhyolite [PDF]

, 1993
Frequency dependent rheology of magmas may result from the presence of inclusions (bubbles, crystals) in the melt and/or from viscoelastic behavior of the melt itself.
Angell, Bagdassarov, Barnes, Bentley, Berckhemer, Brawer, Cashman, Chen, D. B. Dingwell, Dattagupta, Dingwell, Dingwell, Hopkins, Jäckle, Jäckle, Kampfmann, Khitarov, Moynihan, N. S. Bagdassarov, Nguyen, Nowick, Philippoff, Prud'homme, Ripley, Schowalter, Sinning, Stein, Sura, Webb   +28 more
core   +1 more source

Conjugate Vectors Method Applied to Asymmetrical Fault Analysis of Power Electronized Power Systems

CSEE Journal of Power and Energy Systems
With the wide application of power electronized resources (PERs), the amplitude and frequency of voltages show significant time-varying characteristics under asymmetrical faults. As a result, the traditional phasor model, impedance model, and symmetrical
Yingbiao Li, Xing Liu, Jiabing Hu, Jianhang Zhu, Jianbo Guo   +4 more
doaj   +1 more source

Asymmetrical Microfracture Density Across an Active Thrust Fault: Evidence from the Longmen Shan Fault, Eastern Tibet [PDF]

Lithosphere
Microfracture density in fault damage zones can reflect spatial variability that decays in intensity as a function of distance from the fault, which is crucial in understanding the mechanical, seismological, and fluid-flow properties of the fault system.
Hu Wang, Peisheng Luo, Yi Liang, Dongming Li, Kaijin Li, Lin Deng, Lichun Chen   +6 more
doaj   +1 more source

Three-Phase-Measurement-Based Load Modeling Technique Using Unbalanced Fault Data

IEEE Access, 2020
This study presents a load modeling technique using unsymmetrical fault data. Typically, three-phase balanced fault data are prerequisite for load modeling; however, the existing technique utilizes only positive sequence data.
Sangwook Han
doaj   +1 more source

Complex circular subsidence structures in tephra deposited on large blocks of ice: Varða tuff cone, Öræfajökull, Iceland [PDF]

, 2016
Several broadly circular structures up to 16 m in diameter, into which higher strata have sagged and locally collapsed, are present in a tephra outcrop on southwest Öræfajökull, southern Iceland.
A Geyer, A Hubbard, A Olszewski, A. J. Walker, AES Forbes, AJ Russell, B Brock, BC McDonald, BF Houghton, BN Whittaker, C Swithinbank, CH Okubo, D. W. McGarvie, E Magnússon, E Zanella, EP Holohan, FS Tweed, H Fay, H Norðdahl, H Tómasson, J Hauff, J Jónsson, J Martí, J. L. Smellie, JA Stevenson, JDL White, JE Cocksedge, JK Maizels, JK Maizels, JS Gilbert, JS Johnson, K Sharma, LO Krenek, MJ Branney, MJ Branney, MJ Branney, MJ Burke, O Roche, O Roche, PD Cole, PD Rowley, PM Marren, R Sulpizio, R. Burgess, RJ Brown, RJ Brown, RJ Carey, RME Thomas, S Burchardt, S Poppe, S Visale, SC Loughlin, TH Druitt, TR Walter, V Acocella, V Acocella, V Manville, V Zanon, WJ Russell, YK Sohn, YK Sohn, YK Sohn   +61 more
core   +2 more sources

Determination of SCC Contributed by DFIG Under Asymmetrical Short Circuit Fault

CSEE Journal of Power and Energy Systems
For the past decades, practical calculation method of short circuit current (SCC) contributed by doubly fed induction generator (DFIG) under asymmetrical short circuit fault is deficient due to its control strategies and unlinear equipment.
Wenjia Xu, Yalou Li, Peipeng Zhou, Bin Han, Zutao Xiang   +4 more
doaj   +1 more source

Enhanced independent pole control of hybrid MMC-HVDC system [PDF]

, 2018
This paper presents an enhanced independent pole control scheme for hybrid modular multilevel converter (MMC) based on full bridge sub-module (FBSM) and half bridge sub-module (HBSM). A detailed analysis of power distribution between upper and lower arms
Ling, Weixing, Wen, Jingyu, Xiang, Wang, Xu, Lie   +3 more
core   +1 more source

The natural history of bugs: using formal methods to analyse software related failures in space missions [PDF]

, 2005
Space missions force engineers to make complex trade-offs between many different constraints including cost, mass, power, functionality and reliability. These constraints create a continual need to innovate. Many advances rely upon software, for instance
A.R. Anderson, C.I. Lewis, C.W. Johnson, C.W. Johnson, F. Jackson, H.P. Grice, M. Jackson   +6 more
core   +1 more source

Constraints on the thermal and tectonic evolution of Greymouth coalfield [PDF]

, 1999
The southern end of the Paparoa Range in Westland, South Island, New Zealand, comprises an asymmetrical, southward plunging, faulted (Brunner-Mt Davy) anticline, the eastern limb of which is common with the western limb of an asymmetrical (Grey Valley ...
Kamp, Peter J.J., Newman, Jane, Whitehouse, Ian W. S.   +2 more
core   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source