Results 61 to 70 of about 468,311 (320)

Clinical Characteristics and Prognostic Risk Factors for Pediatric B‐Cell Lymphoblastic Lymphoma: A Multicenter Retrospective Cohort Study for China Net Childhood Lymphoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐cell lymphoblastic lymphoma (B‐LBL) represents a rare variety of non‐Hodgkin lymphoma, with limited research on its biology, progression, and management. Methods A retrospective analysis was performed on the clinical characteristics of 256 patients aged ≤18 years who received treatment under the China Net Childhood Lymphoma (CNCL)‐
Zhijuan Liu, Jian Wang, Ling Jin, Yanlong Duan, Fu Li, Yueping Jia, Leping Zhang, Xiaojun Yuan, Wei Liu, Ying Liu, Ansheng Liu, Mincui Zheng, Yunpeng Dai, Lian Jiang, Lirong Sun, Xiaowen Zhai, Rong Liu, Chunju Zhou, Zifen Gao, Yonghong Zhang, Xiaomei Yang   +20 more
wiley   +1 more source

Evaluation of Different Development Possibilities of Distribution Grid State Forecasts

Energies, 2020
The number of renewable energy systems is still increasing. To reduce the worldwide CO2 emissions, there will be even more challenges in the distribution grids like currently upcoming charging stations or heat pumps. All these new electric systems in the
Jessica Hermanns, Marcel Modemann, Kamil Korotkiewicz, Frederik Paulat, Kevin Kotthaus, Sven Pack, Markus Zdrallek   +6 more
doaj   +1 more source

A hybrid multilevel converter for medium and high voltage applications [PDF]

, 2010
This paper investigates the suitability of the hybrid multilevel converter for medium and high voltage application. The converter operation, modulation, and capacitor voltage balancing method are described in detail.
Adam, Grain Philip, Ahmed, Khaled, Finney, Stephen, Singh, N.K., Williams, Barry   +4 more
core  

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Transient and Steady-State Evaluation of Distributed Generation in Medium-Voltage Distribution Networks

Energies
As power generation systems with increasingly higher capacities are interconnected with distribution networks, a pressing need arises for a thorough analysis of their integration and the subsequent impacts on medium-voltage lines.
Daniel Guillén-López, Xavier Serrano-Guerrero, Antonio Barragán-Escandón, Jean-Michel Clairand   +3 more
doaj   +1 more source

A New Protection Strategy for Microgrid based on Integration of Active Power Index and Fault Current Differential Energy [PDF]

International Journal of Industrial Electronics, Control and Optimization
The utilization of distributed generation (DG) sources in distribution systems has experienced significant growth due to their numerous advantages. Despite benefits such as voltage support and reduced losses, DG integration has introduced substantial ...
Reza Karimi, Abbas Ketabi, Seyyed Mohammad Nobakhti   +2 more
doaj   +1 more source

Hierarchical Distribution Network Topology Formulation and Dimensionality Reduction Using Homeomorphism Transformation

IEEE Access, 2022
The scales of the power distribution networks in real-world power grids expand quickly while the network structures are becoming more and more complex. The power grid companies analyze the power distribution networks in different business scenarios with ...
Jinming Chen, Wei Jiang, Zhiqi Xu, Ye Chen, Hao Jiao, Minghua Wang, Yubo Yuan, Wu Chen   +7 more
doaj   +1 more source

Megawatt-level converter grid-forming control technology by adopting MPC for medium voltage distribution network

Frontiers in Energy Research
The grid-forming control (GFM) is treated as controlled voltage sources, which can enhance synchronize stability in weak grid case. However, the dynamic response of existing GFM method is limited, and the transient overcurrent in fault is still not solved well, which limits its wide application in distribution network.
Shangke Liu, Xiangnan Du, Yanli Xiao, Yuanyuan Liu, Rui Zhao   +4 more
openaire   +2 more sources

A Novel Method for Optimal Location and Expansion of Subtransmission Substations Considering Existing Medium-Voltage Distribution Feeders

, 2009
This research presents an accurate comprehensive cost function for the problem of optimal location of subtransmission substations. Technical constraints and economical parameters are investigated in the modeling. Genetic algorithm is used to optimize the
M. Farrokhifar, M. Sharifian, R. Esmaeilzadeh   +2 more
semanticscholar   +1 more source

Hybrid Power Filter to Enhance Power Quality in a Medium-Voltage Distribution Network

IEEE transactions on industrial electronics (1982. Print), 2009
This paper deals with the problem of reactive power and harmonics in a standard medium-voltage (MV) distribution network. It proposes a simple and inexpensive solution to enhance power quality when a particular connection to the high-voltage transmission
V. F. Corasaniti, M. B. Barbieri, P. L. Arnera, M. Valla   +3 more
semanticscholar   +1 more source