Results 121 to 130 of about 297,175 (241)

Advanced Ceramics in Aerospace and Defense: The Interrelationship between Traditional and Additive Manufacturing Approaches

Advanced Materials Technologies, Volume 11, Issue 3, 5 February 2026.
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk, Senentxu Lanceros‐Mendez, Abílio Pereira Silva   +2 more
wiley   +1 more source

Improving the Characteristics of the Direct FOC Strategy in DFIG‐Based Wind Turbine Systems Using FOIDD and FOPD Controllers

Energy Science &Engineering, Volume 14, Issue 2, Page 999-1021, February 2026.
This study presents a new control strategy for doubly fed induction generator (DFIG) wind turbine systems to overcome the limitations of traditional direct field control using proportional‐integral (DFOC‐PI) regulators, which are sensitive to coefficient changes and lead to low power quality.
Hamza Gasmi, Habib Benbouhenni, Z. M. S. Elbarary, Ilhami Colak, Tahar Tafticht, Salman Arafath Mohammed   +5 more
wiley   +1 more source

A rotational speed recovery strategy for wind turbines considering secondary frequency drops

Zhejiang dianli
Wind turbines can contribute to frequency regulation by releasing rotor kinetic energy， which is an effective way to ensure frequency stability in power systems with high wind power penetration.
LYU Zhenhua, LI Yaran, ZHENG Mingzhong, LI Qiang, HU Yingjie   +4 more
doaj   +1 more source

Modulation of succinyl‐CoA:3‐ketoacid CoA transferase activity by a single amino acid residue in acetate:succinate CoA transferase from Trypanosoma brucei, the causative agent of African sleeping sickness

Protein Science, Volume 35, Issue 2, February 2026.
Abstract Trypanosomatids are protozoan parasites that remain a global health challenge due to the limited efficacy, safety, and durability of current treatments. Acetate: succinate CoA transferase (ASCT), together with succinyl‐CoA synthase (SCS), forms the ASCT/SCS cycle that fuels ATP production and generates acetate, a central metabolic intermediate
Kota Mochizuki, Daniel Ken Inaoka, Keisuke Fukuda, Hana Kurasawa, Kenji Iyoda, Uta Nakai, Shigeharu Harada, Emmanuel O. Balogun, Frédéric Bringaud, Michael Boshart, Takaya Sakura, Kenji Hirayama, Kiyoshi Kita, Tomoo Shiba   +13 more
wiley   +1 more source

Two‐Step Clustering‐Based Equivalent Modeling of Large‐Scale Wind Farms for Enhanced Primary Frequency Regulation

Wind Energy, Volume 29, Issue 2, February 2026.
ABSTRACT The focus on wind power frequency regulation has largely been on individual wind farms, which presents challenges in meeting the coordinated operation needs of multiple stations within large‐scale installations. To address issues of model simplification and accuracy, we propose a large‐scale wind farm equivalent modeling method based on ...
Hongchun Shu, Liuqing Zhu, Botao Shi, Guangxue Wang, Shunguang Lei   +4 more
wiley   +1 more source

Understanding Atrial Fibrillation Complexity Through the Lens of Turbulence Dynamics: Implications for Treatment Strategies

Journal of Cardiovascular Electrophysiology, Volume 37, Issue 2, Page 400-412, February 2026.
ABSTRACT Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice. Its incidence increases significantly with age and has become a major global public health issue. Although research into the mechanisms of AF has spanned over a century‐ranging from the reentry theory to the rotor hypothesis‐none of these
Xin Chu, Xiaohan Jiang, Qing Qiao, Xiaojun Wang, Hong Ye   +4 more
wiley   +1 more source

A consecutive power dispatch in wind farms to mitigate secondary frequency dips

International Journal of Electrical Power & Energy Systems
With the rapid increase of wind energy integrated into power systems, wind turbine generators (WTGs) are required to provide frequency support to maintain the system frequency stability.
Yi Cheng, Huadong Sun, Yuyuan Zhang, Shiyun Xu, Bing Zhao, Petr Vorobev, Vladimir Terzija   +6 more
doaj   +1 more source

Navier-Stokes analysis of radial turbine rotor performance [PDF]

An analysis of flow through a radial turbine rotor using the three-dimensional, thin-layer Navier-Stokes code RVC3D is described. The rotor is a solid version of an air-cooled metallic radial turbine having thick trailing edges, shroud clearance, and ...
Larosiliere, L. M.
core   +1 more source

Rotating Machine Technologies for Integration of Pulsed and High Power Loads in Naval Electric Power Systems [PDF]

Advanced electric sensors and weapons are placing increasing demands on the electric power distribution systems of future naval vessels and energy storage is viewed as a critical technology for effective integration of IPS architectures in these ...
Gattozzi, A., Herbst, J.D., Ouroua, A., Pratap, S.B.   +3 more
core  

Simulation of the operating characteristics of an all-metal conical screw pump. [PDF]

Sci Rep
Wu T, Li J, Xia Q, Zhang B.
europepmc   +1 more source