Results 81 to 90 of about 355,955 (343)

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

A comprehensive analysis of small-passerine fatalities from collision with turbines at wind energy facilities. [PDF]

PLoS ONE, 2014
Small passerines, sometimes referred to as perching birds or songbirds, are the most abundant bird group in the United States (US) and Canada, and the most common among bird fatalities caused by collision with turbines at wind energy facilities.
Wallace P Erickson, Melissa M Wolfe, Kimberly J Bay, Douglas H Johnson, Joelle L Gehring   +4 more
doaj   +1 more source

Wind Energy Potential in Urban Area: Case study Prishtina

International Journal of Technology, 2022
Urban wind Energy is one of the new renewable ways of producing electricity, which researchers have not studied very much. From earlier studies, it is impossible to state if it is or is not recommended to install wind turbines in Urban Areas. Further
Gazmend Krasniqi, Cvete Dimitrieska, Shpetim Lajqi   +2 more
doaj   +1 more source

Shrouded small wind turbines [PDF]

, 2014
The goal of this project is to improve the energy production of small wind turbines (rated less than 100 kW) by increasing wind velocity at the turbine blades through the design of a shroud attachment.
Flannery, Kristen, Holligan, Michael, Soares, Joseph   +2 more
core   +1 more source

Urban wind energy conversion: the potential of ducted turbines [PDF]

, 2008
The prospects for urban wind power are discussed. A roof-mounted ducted wind turbine, which uses pressure differentials created by wind flow around a building, is proposed as an alternative to more conventional approaches.
Grant, Andrew, Johnstone, Cameron, Kelly, Nick   +2 more
core   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Simulation of wind turbine wake interaction using the vorticity transport model [PDF]

, 2010
The aerodynamic interactions that can occur within a wind farm can result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Ahlin, Brown, Brown, Builtjes, Crespo, Fletcher, Green, Kenyon, Lissaman, Milborrow, Newman, Sforza, Toro, Troldborg, Vermeer, Voutsinas   +15 more
core   +1 more source

Transforming Grain‐Boundary Brittle Precipitates to Ductility Pathways in Complex Concentrated Alloy

Advanced Science, EarlyView.
By engineering graded BCC/L12 interfaces, brittle precipitates in a complex concentrated alloy enable sequential deformation, realizing gigapascal strength with >20% elongation to solve the strength‐ductility trade‐off. ABSTRACT Conventional wisdom holds that hard grain‐boundary (GB) precipitates embrittle structural alloys by acting as crack ...
Zhixin Li, Xiao‐Tong Li, Zhaoqi Chen, Yushan Geng, Hao Gong, Sijia Hu, Wenli Song, Wanshun Xia, Chuanzheng Li, Linfa Peng, Yue Fan, Pengfei Guan, Bo Zhang, Weihua Wang, Yong Yang   +14 more
wiley   +1 more source

Application of blade element momentum theory with guaranteed convergence to analyze a straight-blade horizontal axis wind turbine

International Journal of Air-Conditioning and Refrigeration
Blade element momentum theory continues to be widely used in the wind industry to calculate and analyze wind turbines. This theory has been improved many times to address its inherent weakness of convergence capability.
Dang Huy Le, The Bao Nguyen, Van Minh Ngo   +2 more
doaj   +1 more source

Performance of small wind turbines: simulation of electricity supply to loads connected to the public or isolated grid [PDF]

Engenharia Agrícola, 2016
The successful in the implementation of wind turbines depends on several factors, including: the wind resource at the installation site, the equipment used, project acquisition and operational costs.
Rafael V. Rodrigues, Luiz A. Rossi
doaj   +2 more sources