Results 201 to 210 of about 169,125 (319)

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

Investigation of the Vibrational Behavior of Thermoformed Magnetic Piezoelectrets. [PDF]

Polymers (Basel)
Santos AM, Moreira RAS, Caires LS, Lima RM, Silva EP, Santos PA, Alves JF, Tavares SMO, Santos KMG, Altafim RAP, Altafim RAC.   +10 more
europepmc   +1 more source

GaIn‐Induced Polarization Control in PVDF for High‐Efficiency Energy Harvesting and Instantaneous Wireless Sensing

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a liquid metal–engineered β‐PVDF composite enabling high‐performance piezoelectric–triboelectric nanogenerators. Guided by MD/DFT simulations, GaIn doping promotes β‐phase formation and dipole alignment, while native oxides enhance charge retention.
Jiaqi Lu, Kaihang Zhang, Dinku Hazarika, Liangquan Xu, Jiatong Yao, Lifeng Xuan, Jiafeng Ni, Jianhui Wu, Jie Li, Rui Wan, Xinyu Cai, Chuanrui Chen, Yongjun Wu, Jikui Luo   +13 more
wiley   +1 more source

Auto-oscillations and directional magnon emission induced by spin current injection into large magnetic volumes. [PDF]

Nat Commun
Schlitz R, Demidov VE, Lammel M, Demokritov SO, Gambardella P.   +4 more
europepmc   +1 more source

Seismic Design of Concrete Dams: An Integrated Risk‐Informed Performance‐Based (RIPB) Framework

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This paper advances the integration of risk‐informed principles into the seismic design of dams—a domain long guided by standards‐based, largely deterministic approaches. While performance‐based earthquake engineering is well established for buildings and bridges, its systematic adoption in dam engineering remains limited. We first address two
M. Amin Hariri‐Ardebili, Larry K. Nuss
wiley   +1 more source

Design and Acoustic Performance Research of Underwater Acoustic Absorption Metamaterials. [PDF]

Materials (Basel)
Dong G, Wu F.
europepmc   +1 more source

Optimized four-qubit quantum error correcting code for amplitude damping channel [PDF]

Xuanhui Mao, Qian Xu, Liang Jiang
openalex   +1 more source

Optimized Asymmetrical Fuzzy‐2DOFTIDF Controller for LFC of Three‐Area Multi‐Sources Interconnected Power System Along With HAE‐FC and UPFC Using a New SOA Algorithm

Energy Science &Engineering, EarlyView.
This study proposes a novel Asymmetrical‐Fuzzy Two‐Degree‐of‐Freedom Tilt‐Integral‐Derivative (AF‐2DOF‐TIDF) controller for load frequency control in a multi‐area, multi‐source power system integrating Hydrogen‐Aqua‐Electrolyzer‐Fuel‐Cell (HAE‐FC) units and a Unified Power Flow Controller (UPFC).
Getaneh Mesfin Meseret, M. Bala Anand
wiley   +1 more source

Development mechanism and parameter control of jet impingement based on chaotic modulation. [PDF]

Sci Rep
Zhang X, Li X, Wang H, Zhang G.
europepmc   +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, EarlyView.
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