Results 61 to 70 of about 418,652 (294)

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

open access: yesMolecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff   +11 more
wiley   +1 more source

Response Based Emergency Control System for Power System Transient Stability

open access: yesEnergies, 2015
A transient stability control system for the electric power system composed of a prediction method and a control method is proposed based on trajectory information.
Huaiyuan Wang, Baohui Zhang, Zhiguo Hao
doaj   +1 more source

Direct Transient Stability Assessment Of Stressed Power Systems

open access: yes, 2014
{"references": ["P. Kundur, Power system Stability and Control. The ERPI Power system\nEngineering Series, 1994, pp. 17.", "V. Jalili-Marandi, \"Instantaneous relaxation-based real-time transient\nStability Simulation,\" IEEE Trans. Power Systems, vol. 24, no. 3,\npp.1327-1336, Aug.
E. Popov   +4 more
openaire   +1 more source

Power system transient stability assessment based on quadratic approximation of stability region [PDF]

open access: yes, 2005
This paper presents an approach to estimate the Critical Clearing Time (CCT) of the multi-machine power systems based on the quadratic surface which approximates the boundary of stability region relating to the controlling unstable equilibrium point.
Lu, Q, Mei, S, Ni, Y, Wu, FF, Xue, A
core   +1 more source

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

open access: yesMolecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee   +8 more
wiley   +1 more source

Transient Stability Analysis and Improvement of Multi-paralleled Power Conversion System Based on the Lyapunov’s Direct Method

open access: yesHuman-Centric Intelligent Systems
The objective of this study is to analyze the transient stability of a multiparalleled grid-forming (GFM) power conversion system (PCS) under grid fault conditions.
Liu Hongyan, Ouyang Xia, Wu Jisi, Liu Qi
doaj   +1 more source

Artificial Intelligence Techniques for Power System Transient Stability Assessment

open access: yesEnergies, 2022
The high penetration of renewable energy sources, coupled with decommissioning of conventional power plants, leads to the reduction of power system inertia. This has negative repercussions on the transient stability of power systems.
Petar Sarajcev   +3 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Formal LPV control for transient stability of power systems [PDF]

open access: yes2017 IEEE Power & Energy Society General Meeting, 2017
Transient stability analysis of synchronous generators is important for a secure operation of power systems. This paper presents the design and verification of linear-parameter-varying (LPV) controllers to robustly establish transient stability of multi-machine power systems with formal guarantees.
Ahmed El-Guindy   +4 more
openaire   +1 more source

Robust Decentralized Secondary Frequency Control in Power Systems: Merits and Trade-Offs [PDF]

open access: yes, 2018
Frequency restoration in power systems is conventionally performed by broadcasting a centralized signal to local controllers. As a result of the energy transition, technological advances, and the scientific interest in distributed control and ...
De Persis, Claudio   +5 more
core   +2 more sources

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