Results 101 to 110 of about 1,227,158 (294)

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

Overview of problems in large-scale wind integrations

Journal of Modern Power Systems and Clean Energy, 2013
Wind power has been developing rapidly in major countries in the past 10 years. The distinct static and dynamic characteristics of output power compared with conventional generations pose significant challenges on power system adequacy and stability and ...
Xiaoming Yuan
doaj   +1 more source

Prognostic Impact of European LeukemiaNet Genetic Risk Stratification System in Adult Patients With Acute Myeloid Leukemia

Aging and Cancer, EarlyView.
This study aimed to evaluate the prognostic value of ELN2017 in predicting survival outcomes and to assess the impact of clinical and molecular factors such as age, FLT3 and NPM1 mutations, and allogeneic hematopoietic stem cell transplantation (allo‐HSCT).
Mobina Shrestha, Bishwas Mandal, Vishal Mandal, Asis Shrestha, Amir Babu Shrestha   +4 more
wiley   +1 more source

The stability of electricity prices: estimation and inference of the Lyapunov exponents [PDF]

The aim of this paper is to illustrate how the stability of a stochastic dynamic system is measured using the Lyapunov exponents. Specifically, we use a feedforward neural network to estimate these exponents as well as asymptotic results for this ...
Bask , Mikael, Liu , Tung, Widerberg , Anna   +2 more
core  

Power Flow and Transient Stability Enhancement using Thyristor Controlled Series Compensation

Mehran University Research Journal of Engineering and Technology, 2018
TL (Transmission Line) congestion is a key factor that affects the power system operational cost. In addition of renewable generation in National Grid of Pakistan, transmission line congestion are frequent.
Zaira Anwar, Tahir Nadeem Malik, Tahir Abbas   +2 more
doaj   +1 more source

Dynamic Embedded Optimization Applied to Power System Stabilizers

Journal of Electrical Engineering and Technology, 2014
The systematic optimal tuning of power system stabilizers (PSSs) using the dynamic embedded optimization (DEO) technique is described in this paper. A hybrid system model which has the differential-algebraic-impulsive-switched (DAIS) structure is used as a tool for the DEO of PSSs.
Byung Chul Sung, Seung-Mook Baek, Jung-Wook Park   +2 more
openaire   +2 more sources

Acoustic Measures Capture Speech Dysfunction in Spinocerebellar Ataxia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxias (SCA) are hereditary cerebellar degenerative disorders with a common feature of dysarthria, involving impaired phonatory and articulatory control of speech, thereby affecting social communication. In this study, we investigated whether acoustic measures could objectively measure speech dysfunction and identify
Zena Fadel, Charlotte Hennessey, Hannah Lee, Pia Parekh, Sheng‐Han Kuo, Ami Kumar   +5 more
wiley   +1 more source

Glymphatic Dysfunction Reflects Post‐Concussion Symptoms: Changes Within 1 Month and After 3 Months

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Mild traumatic brain injury (mTBI) may alter glymphatic function; however, its progression and variability remain obscure. This study examined glymphatic function following mTBI within 1 month and after 3 months post‐injury to determine whether variations in glymphatic function are associated with post‐traumatic symptom severity ...
Eunkyung Kim, Han Gil Seo, Roh‐Eul Yoo, Byung‐Mo Oh   +3 more
wiley   +1 more source

Grid‐forming converters in interconnected power systems: Requirements, testing aspects, and system impact

IET Renewable Power Generation
In this study, the integration of grid‐forming (GFM) converters in power systems is discussed in terms of both the fundamental aspects of system stability and the technical possibilities of converter‐based resources.
Soenke Rogalla, Philipp Ernst, Hendrik Lens, Thomas Schaupp, Christian Schöll, Roland Singer, Jakob Ungerland   +6 more
doaj   +1 more source

Development of a Prediction Model for Progression Risk in High‐Grade Gliomas Based on Habitat Radiomics and Pathomics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the value of constructing models based on habitat radiomics and pathomics for predicting the risk of progression in high‐grade gliomas. Methods This study conducted a retrospective analysis of preoperative magnetic resonance (MR) images and pathological sections from 72 patients diagnosed with high‐grade gliomas (52 ...
Yuchen Zhu, Yuxi Gong, Weilin Xu, Xingjian Sun, Gefei Jiang, Lei Qiu, Kexin Shi, Mengxing Wu, Yinjiao Fei, Jinling Yuan, Jinyan Luo, Yurong Li, Yuandong Cao, Minhong Pan, Shu Zhou   +14 more
wiley   +1 more source