Results 71 to 80 of about 5,635,783 (288)

Structural design and analysis of high-static-low-dynamic stiffness torsional vibration isolator for ship shafting

Zhongguo Jianchuan Yanjiu
ObjectivesIn order to isolate low-frequency torsional vibration for ship shafting, this paper proposes and analyzes a high-static-low-dynamic stiffness torsional vibration isolator.MethodsFirst, the components are designed on the basis of the parallel ...
Lintao LI, chao ZHANG, Zhirong YANG, Zhushi RAO, Wangqiang XIAO   +4 more
doaj   +1 more source

Unveiling the Ultralow Thermal Conductivity of Hybrid Perovskites

Advanced Science, EarlyView.
In hybrid perovskites, thermal energy flows through lattice vibrations of the framework (48%–65%) and organic molecules (35%–52%). When the disorder introduced by organic molecules is excluded, the temperature dependence of the vibrational thermal conductivity results from the lattice framework transits from ∼T0 to ∼T−1, and the value doubles at room ...
Qinqin He, Yuli Chen, Zhigang Li, Yanguang Zhou   +3 more
wiley   +1 more source

Torsional vibration characteristics analysis of DFIG-based wind farm and its equivalent model [PDF]

, 2017
As large-scale wind farms (WFs) are integrated with the power grid, the interaction between the WF and the grid may excite torsional vibration of the shaft of the wind turbine.
Xie, Da, Da Xie, Lou, Yucheng, Li, Furong, Chenghong Gu, Furong Li, Yucheng Lou, Gu, Chenghong, Junbo Sun, Yupu Lu, Lu, Yupu, Sun, Junbo   +11 more
core   +1 more source

Adaptive Conductive Systems: Enabling Deformable Electronics Through Engineered Materials, Circuits, and Intelligent Systems

Advanced Science, EarlyView.
This review presents the research advances of adaptive conductive systems from the perspective of materials, circuits, systems, and applications. Deformable conductors consist of substrates/matrices and conductive materials, structural design of circuit interconnections, fabrication of circuit interconnections, as well as intelligent systems ...
Yufei Lu, Siyu Liang, Jingyi Niu, Jie Chen, Shuo Zhang, Hongjian Zhang, Dongsheng Jia, Wei Huang   +7 more
wiley   +1 more source

The dynamics of eccentric block in a fully mechanical vertical drilling tool under the effect of torsional vibration

Advances in Mechanical Engineering, 2018
In present, the drilling industry have to face the reality of low oil and gas prices, fully mechanical vertical drilling tool is likely to become the best choice for vertical drilling in the future.
Lixin Li, Qilong Xue, Baolin Liu, Jin Wang, Xinyu Li   +4 more
doaj   +1 more source

TNAP and PHOSPHO1 Function Synergistically to Afford Critical Control Over the Mineralization of the Postnatal Murine Skeleton

Advanced Science, EarlyView.
Biomineralization underpins skeletal development, yet its molecular control remains incompletely understood. Using a novel murine knockout model, this study reveals the essential and complementary roles of PHOSPHO1 and TNAP in postnatal skeletal development.
Lucie E. Bourne, Aikta Sharma, Scott Dillon, Jacob Keen, Soher N. Jayash, Natalie Crump, Lucinda A.E. Evans, Maya Karmali, Worachet Promruk, Claire E. Clarkin, Sonoko Narisawa, Louise Stephen, Brian L. Foster, José Luis Millán, Colin Farquharson, Katherine A. Staines   +15 more
wiley   +1 more source

Bifurcation characteristics of torsional-horizontal coupled vibration of rolling mill system [PDF]

, 2017
In this paper, the static bifurcation and dynamic bifurcation of rolling mill system with torsional-horizontal coupling vibration are studied. Firstly, the dynamic equation of torsional-horizontal coupled vibration of rolling mill main drive system is ...
Shuang Liu, Meng Zong, Yunpeng Zhang, Yatao Shi   +3 more
core   +2 more sources

Ferroionic Electrostatic Landscapes Enabling Wireless Energy Harvesting, Storage, and Sensing

Advanced Electronic Materials, EarlyView.
By integrating experiments and electrostatic field simulations, we show that long‐range wireless coupling in Li‐based ferroionics devices emerges from the cooperative interaction between ionic migration and electronic polarization. This coupling sustains self‐polarized electrostatic fields across centimeter‐scale air gaps without external bias or ...
M. Helena Braga, Beatriz M. Gomes, António B. Vale, Beatriz A. Maia, Ilídio B. Costa, Filipa Braz, Jorge C. Ribeiro, João C. Ribeiro   +7 more
wiley   +1 more source

Self-tuning routine alarm analysis of vibration signals in steam turbine generators [PDF]

, 2012
This paper presents a self-tuning framework for knowledge-based diagnosis of routine alarms in steam turbine generators. The techniques provide a novel basis for initialising and updating time series feature extraction parameters used in the automated ...
Campbell, Graeme, Costello, Jason, West, Graeme, McArthur, Stephen   +3 more
core   +3 more sources

Experimental Study on the Skyhook Control of a Magnetorheological Torsional Vibration Damper

Micromachines
This study proposes a dual-coil magnetorheological torsional vibration damper (MRTVD) and verifies the effectiveness of semi-active damping control to suppress the shaft system’s torsional vibration via experimental research.
Zhicheng Wang, Hongsheng Hu, Jiabin Yang, Jiajia Zheng, Wei Zhao, Qing Ouyang   +5 more
doaj   +1 more source