Results 131 to 140 of about 3,272,554 (299)

Energy harvesting from dynamic vibration pendulum absorber

, 2018
© 2019, Springer Nature Singapore Pte Ltd. Dynamic vibration absorbers (DVAs) have proven to be an effective passive technique to suppress device vibration, with many realistic implementations in structures, buildings, and machines.
Ali, S., S. F. Ali, Malaji, P., M. Rajarathinam, I. M. Howard, Jaiswal, V., V. Jaiswal, Rajarathinam, M., Howard, Ian, P. V. Malaji   +9 more
core   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

Advanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin, Stav Rahmany, Anat Shvets, Hadar Shema, Elad Gross, Ido Hadar, Lioz Etgar   +6 more
wiley   +1 more source

Influence of End-Stop Design Variations on Dynamic Response of Centrifugal Pendulum Vibration Absorbers

Shock and Vibration
Centrifugal pendulum vibration absorbers (CPVA) are passive order-tuned mechanisms with absorber masses swinging along their specific paths. Their motion is limited by end-stops preventing undesired impacts due to rotor-to-absorber and absorber-to ...
Bahadir Sarikaya, Enes Ozdemir, Murat Inalpolat, Hyun Ku Lee, Moo Suk Kim   +4 more
doaj   +1 more source

Suppression of random vibration in flexible structures using a hybrid vibration absorber

, 2012
A design method is proposed to suppress stationary random vibration in flexible structures using a hybrid vibration absorber (HVA). While the traditional vibration absorber can damp down the vibration mainly at the pre-tuned mode of the primary structure,
Wong, WO, W.O. Wong, Yuan, J, M.H. Tso, Tso, MHH, J. Yuan   +5 more
core   +1 more source

Bio‐Inspired Multifunctional Superhydrophilic Coatings With Remarkably Fast Self‐Healing Abilities

Advanced Functional Materials, EarlyView.
We developed bio‐inspired multifunctional hydrogel‐based coatings that exhibit extremely fast/repeatable self‐healing abilities, long‐lasting anti‐fogging performance, superhydrophilicity in air, and underwater superoleophobicity. By doping multivalent metal‐ions into the hydrogel networks, which promoted hydrogen bonding formation and enhanced the ...
Hyeonjin Kim, Jerred Wassgren, Hiroshi Kakiuchida, Kouki Akaike, Shunsuke Tanaka, Atsushi Hozumi   +5 more
wiley   +1 more source

Vibration serviceability of long-span cast in-situ concrete floors. [PDF]

, 1999
This thesis describes an investigation into the vibration serviceability of long-span and slender in-situ concrete floors, which are typically post-tensioned.
Pavic, Aleksandar
core   +1 more source

A Study of Semi-Active Vibration Control for Vehicle Suspension System Using an Adjustable Shock Absorber [PDF]

, 2014
[[abstract]]A semi-active vehicle suspension system using an adjustable shock absorber for a quarter-car model vibration control is presented in this paper. Two control techniques are developed for assessing both ride comfort and road handling.
Wu, Jian-Da; Lin, Chih-Jer; Kuo, Kun-Yin
core  

Reaction‐Time pH Stabilization by Poly(acrylic acid) with Ethanol‐Mediated Growth Control for Efficient Hydrothermal Sb2(S,Se)3 Solar Cells

Advanced Functional Materials, EarlyView.
Poly(acrylic acid) acts as a reaction‐time pH buffer during hydrothermal Sb2(S,Se)3 growth through its COOH/COO‐ equilibrium. When combined with ethanol‐regulated growth, this buffering strategy reduces Sb‐O related surface disorder, improves local electronic uniformity and carrier collection, and increases the champion solar‐cell efficiency to 10.25%,
Juhee Lee, Geumha Lim, Wookyung Jeon, Seongju Park, Jinwoo Chu, Yohan Yoon, William Jo, Byungha Shin   +7 more
wiley   +1 more source

Conjugated Porphyrin Polymer With Superior Charge Transfer for Photodynamic‐Immunomodulatory Prevention of CIED Infection in Diabetes

Advanced Healthcare Materials, EarlyView.
Under NIR irradiation, PTCPP generates ROS to eliminate MRSA biofilms and promote M1 macrophage polarization for phagocytosis. After bacterial clearance, the material is phagocytosed by macrophages, shifting their polarization to M2 phenotype via metabolic reprogramming, which synergistically enhances anti‐infection therapy and wound healing.
Honghao Ma, Jinguo Xu, Rongrong Gu, Chuanhui Dong, Te Chen, Yi Mu, Jing Zhu, Yating Wang, Wen Wang, Yingying Zhang, Hongyu Ma, Xiaochen Wang, Sheng Ye, Cheng Cheng   +13 more
wiley   +1 more source

Rare‐Earth–Functionalized Carbon Dot Hydrogels as Mechanically Robust Antibacterial Wound Dressings

Advanced Healthcare Materials, EarlyView.
The schematic depicts a dynamically cross‐linked PVA hydrogel network in which reversible borate ester bonds and hydrogen‐bonding interactions integrate lanthanum‐doped carbon dots (La‐CDs) and dipotassium glycyrrhizinate (DPG) to form a mechanically robust, multifunctional matrix.
Shih‐Han Tsai, Ramadhass Keerthika Devi, Muthusankar Ganesan, Guo‐Ping Chang Chien, Chun Che Lin   +4 more
wiley   +1 more source