Results 91 to 100 of about 55,050 (295)

A Bidirectional Tuned Mass Damper for Flutter Suppression in Ultra-Large Offshore Wind Turbine Flexible Blades

Journal of Marine Science and Engineering
As onshore space resources become exhausted, the migration of wind turbines to offshore areas is an inevitable trend. The blades of offshore wind turbines are typically over 100 m long, and this increased nonlinearity in the blades escalates the risk of ...
Weiliang Liao, Mingming Zhang, Jianjun Yang, Youhua Fan, Tianlun Du, Yanfei Deng   +5 more
doaj   +1 more source

Traceless Regulation of Genetic Circuitry

Advanced Science, EarlyView.
Energy‐based, as opposed to molecular, control offers unprecedented improvements in key circuit parameters. This review summarizes the fundamentals of such traceless switches, categorizes them by trigger modalities, and compares and contrasts distinct advantages as well as shortcomings of each kind.
Gokberk Unal, Martin Fussenegger
wiley   +1 more source

Probing Ultrastrong Through‐Space Electronic Coupling in Donor‐Acceptor Systems at the Single‐Molecule Level

Advanced Science, EarlyView.
A series of through‐space coupled donor‐acceptor (D–A) molecules is sandwiched between two electrodes to determine their single‐molecule conductance. As the D–A interaction weakens, single‐molecule conductance reduces while Flicker Noise PSD n‐value increases (coupling strength decreases).
Xin Wang, Dan Yang, Jiazheng Diao, Jens Ulstrup, Chengyang Zhang, Florian Auras, Qiang Fu, Jinlong Yang, Linsong Cui, Yueqi Li, Jinghong Li   +10 more
wiley   +1 more source

Long-term results of catheter radiofrequency ablation of cavotricuspid isthmus in patients with typical atrial flutter and diabetes mellitus type 2

RUDN Journal of Medicine, 2016
Aim - to evaluate the effectiveness of radiofrequency ablation cavotricuspid of the isthmus in patients with diabetes mellitus (DM) type 2, and typical atrial flutter, as well as to identify the factors of recurrence of atrial flutter after the procedure.
Yu A Kachanova, N A Novikova, A L Syrkin
doaj  

Rotors of truly atypical atrial flutters visualized by FIRM mapping and 3D-MRI overlay on live fluoroscopy [PDF]

, 2013
Michael V. Orlov, M. V. Gorev, André Griben   +2 more
openalex   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

Advanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira, Md Mahbubur Rahman, Karib Hassan Khan, Md Nizam Uddin, Dewan Hafiz Nabil   +4 more
wiley   +1 more source

Economic Viability of Photovoltaic Systems Providing Frequency Containment Reserve

Advanced Energy and Sustainability Research, EarlyView.
This article investigates the feasibility of photovoltaic (PV) systems providing frequency containment reserve (FCR) in the Netherlands. The economic analysis demonstrates that a PV plant can profitably participate in FCR without battery storage by maintaining an active power reserve.
Emil Petkovski, Mari S. Bogen, Theo Bosma, Marcel Eijgelaar   +3 more
wiley   +1 more source

Import Wheat Tenders and the Effects of the Russian Invasion

Agribusiness, EarlyView.
ABSTRACT Risk and volatility for many commodities escalated sharply following the Russian invasion of Ukraine, creating numerous uncertainties for trading firms and importers. The purpose of this study is to analyze the bidding behavior in Egyptian wheat import tenders in the pre‐ and post‐invasion periods.
William W. Wilson, Sumadhur Shakya, Isaac Dubovoy   +2 more
wiley   +1 more source

Set Membership Strategy for Closed Loop Aircraft Flutter Controller Design

IEEE Access
We consider the problem of set membership identification and control for closed loop aircraft flutter platform within the practical case of bounded noise.
Liu Yunhong, Wang JIanhong
doaj   +1 more source

Direct current cardioversion in a case of congenital atrial flutter. [PDF]

, 1972
R P Barclay, D G Barr
openalex   +1 more source