Results 111 to 120 of about 112,422 (307)

Gibbs attractor: a chaotic nearly Hamiltonian system, driven by external harmonic force

, 2003
A chaotic autonomous Hamiltonian systems, perturbed by small damping and small external force, harmonically dependent on time, can acquire a strange attractor with properties similar to that of the canonical distribution - the Gibbs attractor.
B. V. Chirikov, C. Jarzynski, D. Cohen, G. Casati, H.-D. Meyer, I. V. Pogorelov, J. Qiang, J.-D. Bao, N. B. Delone, P. A. Vorobyev, P. V. Elyutin, P. V. Elyutin, P. V. Elyutin, P. V. Elyutin, R. A. Pullen, R. Mankin, R. Mankin, T. Pohl   +17 more
core   +1 more source

Roadmap to Precision 3D Printing of Cellulose: Rheology‐Guided Formulation, Fidelity Assessment, and Application Horizons

Advanced Materials Technologies, EarlyView.
This critical review presents a comprehensive roadmap for the precision 3D printing of cellulose. Quantitative correlations link ink formulation and rheological properties to print fidelity and final material performance. This framework guides the development of advanced functional materials, from biomedical scaffolds to electromagnetic shielding ...
Majed Amini, Hadi Hosseini, Seyyed Alireza Hashemi, Mohammad Arjmand   +3 more
wiley   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

DAMPING OF VIBRATIONS IN INTERCHANGE POWER

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2005
The paper considers damping of vibrations in interchange power of interconnecting transmission lines. Influence of natural and supplementary regulation parameters on the character of transient process is shown in the paper.The paper contains ...
G. M. Pavlov, H. T. Rishague
doaj  

Computing the stress intensity factor range for fatigue crack growth testing at 20 kHz

Engineering Reports
Inertia and damping influence the values of the stress intensity factors (SIFs) at high‐frequency loading and they must be included in computations. In the present study, different dynamic simulation procedures were carried out for two types of specimen ...
Mohamed Sadek, Jens Bergström, Nils Hallbäck   +2 more
doaj   +1 more source

Transient stability analysis for grid following converters in low-inertia power systems by direct method

International Journal of Electrical Power & Energy Systems
With the increased penetration of renewable energy and reduced proportion of synchronous generators, the low-inertia characteristics of today’s power system become prominent, and the transient stability issue of grid following converter (GFLC) under low ...
Fangyuan Sun, Ruisheng Diao, Ruiyuan Zeng, Zhanning Liu, Baorong Zhou, Junjie Li, Wangqianyun Tang   +6 more
doaj   +1 more source

Optimization of Battery Energy Storage to Improve Power System Oscillation Damping

, 2018
A placement problem for multiple Battery Energy Storage System (BESS) units is formulated towards power system transient voltage stability enhancement in this paper. The problem is solved by the Cross-Entropy (CE) optimization method.
Liu, Chengxi, Shi, Di, Sun, Kai, Wang, Zhiwei, Zhu, Yongli   +4 more
core   +1 more source

Additively Manufactured Porous Ceramics as Tunable Dielectrics for Passive Temperature Sensing

Advanced Materials Technologies, EarlyView.
Porous ceramic lattices, 3D‐printed from a multicomponent oxide ink, are integrated with LC resonators for passive wireless temperature sensing. By tuning porosity, the dielectric properties and RF response are engineered to produce distinct resonant frequency shifts with temperature. The results establish a structure‐driven approach to customizing the
Sogol Heidarishahrivar, Aminul Islam, Chang Woo Gal, Insup Kim, Yeong‐Jin Choi, Woo Soo Kim   +5 more
wiley   +1 more source

Transient Modeling and Characteristic Comparative Analysis of Grid-Forming VSC with and Without Current Control

Shanghai Jiaotong Daxue xuebao
As the support capacity of renewable energy generation equipment for the power grid needs enhancement, grid-forming control has attracted extensive attention, among which the virtual synchronous generator (VSG) has emerged as a key research frontier and ...
REN Xiancheng, LI Shangzhi, LI Yingbiao, HU Jiabing, XU Taishan, BAO Yanhong, WU Feng
doaj   +1 more source