Results 81 to 90 of about 9,442,881 (279)

Optimal design of wind turbine blades equipped with flaps [PDF]

open access: yes, 2014
As a result of the significant growth of wind turbines in size, blade load control has become the main challenge for large wind turbines. Many advanced techniques have been investigated aiming at developing control devices to ease blade loading.
Wiratama, I. Kade, Maheri, Alireza
core  

Structural Power Composites Based on High Mass Loading Zn‐Ion Hybrid Supercapacitors with Metal Mesh Current Collectors and Aramid Nanofiber/Glass Fiber Composite Electrolytes

open access: yesAdvanced Functional Materials, EarlyView.
A multifunctional structural power composite is developed by integrating high‐mass‐loading Zn‐ion hybrid supercapacitors with metal mesh current collectors and aramid nanofiber‐based composite electrolytes, enabling simultaneous load‐bearing capability and enhanced areal energy storage.
Yuseung Choi   +8 more
wiley   +1 more source

An Experimental Study on the Effectiveness of the Backward-Facing Step Technique on Small-Scale Horizontal-Axis Wind Turbine Rotor Blades

open access: yesEnergies
The aim of this research work was to explore how modifying the design of small-scale HAWT rotor blades through the backward-facing step technique affects their efficiency under varying wind speeds.
Riad Morina, Yahya Erkan Akansu
doaj   +1 more source

Impact of keel saw blade design and thickness on the incidence of tibial plateau fracture and tibial implant-loosening in cementless medial UKR. [PDF]

open access: yesBMC Musculoskelet Disord, 2022
Keppler L   +7 more
europepmc   +1 more source

The Washington Blade, April 7, 1995

open access: yes, 1995
An independent newspaper serving the gay community. This edition features articles on gay personnel in the military and military's former ban on gay people; the finances of Whitman-Walker Clinic and its reliance on D.C.
Washington Blade, Inc.et al
core  

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon   +6 more
wiley   +1 more source

Impact of Process Technology on Properties of Large-Scale Wind Turbine Blade Composite Spar Cap

open access: yesEnergies
As wind turbine blade length increases, reconciling lightweight design with strength necessitates continuous advancements in process technology. The impact of three different process technologies–vacuum-assisted resin transfer moulding (VARTM), prepreg ...
Yuanrong Sun, Congli Hu, Jianbo Li
doaj   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

A Review on Performance Calculation and Design Methodologies for Horizontal-Axis Wind Turbine Blades

open access: yesEnergies
The efficient, low-cost, and large-scale development and utilization of offshore wind energy resources is an inevitable trend for future growth. With the continuous increase in the scale of wind turbines and their expansion into deep-sea locations, there
Rongyu Zha   +9 more
doaj   +1 more source

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