Results 31 to 40 of about 122,093 (281)

Local Moment Instability of Os in Honeycomb Li2.15Os0.85O3. [PDF]

, 2018
Compounds with honeycomb structures occupied by strong spin orbit coupled (SOC) moments are considered to be candidate Kitaev quantum spin liquids. Here we present the first example of Os on a honeycomb structure, Li2.15(3)Os0.85(3)O3 (C2/c, a = 5.09 Å ...
Dessau, DS, Haskel, D, LaBarre, PG, Li, Jun, Pi, S-T, Pickett, WE, Ramirez, AP, Subramanian, MA, Wallace, MK   +8 more
core   +2 more sources

Compound Fault Diagnosis Method of Modular Multilevel Converter Based on Improved Capsule Network

IEEE Access, 2022
When submodule (SM) compound fault occurs in the Modular multilevel converter (MMC), the time-domain waveform characteristics of output current and internal circuiting current of MMC are not obvious, especially on the condition of high-level MMC.
Longzhang Ke, Yi Liu, Yi Yang
doaj   +1 more source

Compound Fault Diagnosis of Aero-Engine Rolling Element Bearing Based on CCA Blind Extraction

IEEE Access, 2021
Fault diagnosis of aero-engine spindle bearing is a critical technique of engine prognostics and health management. As is known that the diagnosis of compound fault of aero-engine spindle bearing is very difficult and easily affected by other vibration ...
Wei-Tao Zhang, Xiao-Fan Ji, Ju Huang, Shun-Tian Lou   +3 more
doaj   +1 more source

Environmental risk assessment of genetically modified plants - concepts and controversies [PDF]

, 2011
Background and purpose: In Europe, the EU Directive 2001/18/EC lays out the main provisions of environmental risk assessment (ERA) of genetically modified (GM) organisms that are interpreted very differently by different stakeholders. The purpose of this
A Hilbeck, A Hilbeck, A Hilbeck, A Hilbeck, A Hilbeck, A Hilbeck, A Lang, A Raps, A Raybould, A Raybould, AL Cerdeira, ANE Birch, B Lutz, C Hawes, C Zwahlen, C Zwahlen, CB Blackwood, CBD, Council of the European Union, D Saxena, DA Andow, DA Andow, DA Andow, DJ Baird, EC, EC, EFSA, EJ Rosi-Marshall, Environmental Protection Agency (EPA), EP Millstone, EPA Environmental Protection Agency OPPTS 7501P, EurActive, FAO/WHO, J Romeis, J Romeis, J Romeis, J Scheirs, JD Harwood, JD Harwood, KC Nelson, KC Nelson, KR Hayes, KR Hayes, LB Obrist, M Dolezel, M Douville, M Garcia-Alonso, M Mendelsohn, MC Arregui, MR Berenbaum, National Research Council (NRC), OECD, OECD (Organisation for Economic Cooperation and Development), PM Chapman, Royal Society of Canada, T Bøhn, VE Forbes, W Freese   +57 more
core   +1 more source

Research on the Sparse Representation for Gearbox Compound Fault Features Using Wavelet Bases

Shock and Vibration, 2015
The research on gearbox fault diagnosis has been gaining increasing attention in recent years, especially on single fault diagnosis. In engineering practices, there is always more than one fault in the gearbox, which is demonstrated as compound fault ...
Chunyan Luo, Changqing Shen, Wei Fan, Gaigai Cai, Weiguo Huang, Zhongkui Zhu   +5 more
doaj   +1 more source

Emplacement of the Rocche Rosse rhyolite lava flow (Lipari, Aeolian Islands) [PDF]

, 2018
The authors acknowledge Airbus Defence and Space for providing satellite imagery, financial support from Keele University and fieldwork grants from the Mineralogical Society of Great Britain and Ireland and the Volcanic and Magmatic Studies Group.
Bullock, Liam A, Gertisser, Ralf, O’Driscoll, Brian   +2 more
core   +2 more sources

Sparsity-Oriented Nonconvex Nonseparable Regularization for Rolling Bearing Compound Fault under Noisy Environment

Shock and Vibration, 2020
Rolling bearing is widely used in rotating machinery and, at the same time, it is easy to be damaged due to harsh operating environments and conditions. As a result, rolling bearing is critical to the safe operation of the machinery devices.
Xiaocheng Li, Jingcheng Wang, Hongyuan Wang   +2 more
doaj   +1 more source

Multilevel Clustering Fault Model for IC Manufacture

, 2003
A hierarchical approach to the construction of compound distributions for process-induced faults in IC manufacture is proposed. Within this framework, the negative binomial distribution is treated as level-1 models.
Bogdanov, Yu. I., Bogdanova, N. A., Rudnev, A. V.   +2 more
core   +1 more source

Coordination Control Strategy for Compound Fault of MMC-HVDC [PDF]

MATEC Web of Conferences, 2016
Single-line to ground fault of DC side and sub-module fault are typical faults of MMC-HVDC. When each of the above faults occurs, the system will give a signal for circuit-breaker releasing, this will result in interruption of power delivery, the stability of the system is greatly reduced. When these two faults occur simultaneously, research on control
Zhang Ming Guang, Zhang Zhao Yu, Qiu Li Jie, Chen Xi   +3 more
openaire   +2 more sources

Research on gearbox compound fault diagnosis method and system development based on entire gearbox health maintenance

Advances in Mechanical Engineering, 2023
In general, gearbox is prone to occur compound fault due to its harsh working environment and its fault vibration signal contains multi-components which correspond to each gearbox parts.
Lu Yan, Chen Qin-Xiao, Zhong Cheng, Tao Xian, Zhang Wei, Yuan Chi   +5 more
doaj   +1 more source