Results 111 to 120 of about 2,385,731 (339)

DC‐side stability analysis of grid‐tied converter with different control modes based on electrical torque analysis

IET Energy Systems Integration
The DC‐side stability of the grid‐tied converter under different control modes is fully investigated using electrical torque analysis. The small‐signal model of a single converter connected to an ideal DC bus under various control modes is formulated ...
Xu Zhang, Yujun Li, Jiapeng Li, Ting Wu, Songhao Yang, Zhiguo Hao   +5 more
doaj   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Challenges and solutions in low‐inertia power systems with high wind penetration

IET Generation, Transmission & Distribution
The global energy landscape is undergoing a profound transformation, marked by an unprecedented integration of renewable sources. This paradigm shift brings forth the challenge of low inertia in power systems, posing significant uncertainties to grid ...
Bwandakassy Elenga Baningobera, Irina Oleinikova, Kjetil Uhlen, Basanta Raj Pokhrel   +3 more
doaj   +1 more source

Power system stabilizer control for wind power to enhance power system stability

, 2011
The paper presents a small signal stability analysis for power systems with wind farm interaction. Power systems have damping oscillation modes that can be excited by disturbance or fault in the grid. The power converters of the wind farms can be used to reduce these oscillations and make the system more stable.
Domínguez García, José Luís, Gomis Bellmunt, Oriol, Bianchi, Fernando Daniel, Sumper, Andreas   +3 more
openaire   +1 more source

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

FEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold, Janik Riese, Lancelot Seillier, Mark Kühnel, Julia Pannhausen, Charlotte O. J. Fröhlich, Christian Martin, Peter Boor, Matthias Saar, Danny D. Jonigk, Nadine T. Gaisa, Michael Rose   +11 more
wiley   +1 more source

Estimating the region of attraction of wind integrated power systems based on improved expanding interior algorithm

IET Generation, Transmission & Distribution
This paper proposes an improved expanding interior algorithm (EIA) to estimate the region of attraction (ROA) of power systems with wind power generation based on sum of squares (SOS) programming.
Yang Liu, Huanjin Yao, Zengjie Chen, Xiangyu Pei, Yuexi Yang, Qinghua Wu   +5 more
doaj   +1 more source

Computer-Aided Modeling and Analysis of Power Processing Systems (CAMAPPS), phase 1 [PDF]

The large-signal behaviors of a regulator depend largely on the type of power circuit topology and control. Thus, for maximum flexibility, it is best to develop models for each functional block a independent modules. A regulator can then be configured by
Cho, B. H., Kim, S., Lee, F. C., Lee, J.
core   +1 more source

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

Data‐driven power system dynamic security assessment under adversarial attacks: Risk warning based interpretation analysis and mitigation

IET Energy Systems Integration
Power system dynamic security assessment (DSA) has long been essential for protecting the system from the risk of cascading failures and wide‐spread blackouts.
Zhebin Chen, Chao Ren, Yan Xu, Zhao Yang Dong, Qiaoqiao Li   +4 more
doaj   +1 more source

Power System Voltage Stability Enhancement Based on Line Voltage Stability Indices in Heavily Loaded and Line Outage Contingency Situations

, 2020
Sirote Khunkitti, Suttichai Premrudeepreechacharn, Apirat Siritaratiwat, N.R. Watson   +3 more
openalex   +1 more source