Results 81 to 90 of about 3,164 (256)

Nanostructured Deep Eutectic Systems in Healthcare: From Bioactive Solvents to Intelligent Biointerfaces, Wearables, and AI‐Driven Design

Advanced NanoBiomed Research, EarlyView.
Beyond the green solvent paradigm, this review redefines Deep Eutectic Systems (DES) as programmable supramolecular nanoassemblies. We survey their biomedical convergence: stabilizing thermolabile mRNA to enable cold chain‐free logistics, reshaping transdermal microneedle delivery, enabling long‐term wearables via eutectogels, and utilizing Generative ...
Jeesu Moon, Min Seo Kim, Jae‐Seung Lee
wiley   +1 more source

Torsional vibration analysis of the power transmission system in a hydraulic rail engineering vehicle

机车电传动
Torsional vibration represents a crucial aspect of vibration in power transmission systems, especially for rail engineering vehicles featuring long power transmission pathways.
XU Kun, LUO Yaoxiang, ZHANG Yayu, LI Huawei   +3 more
doaj  

Analysis of Natural Characteristics of the Dual-Path Nutation Face Gear Transmission System

Applied Sciences
The nutation face gear transmission combines the high contact ratio of face gears with the large reduction ratio of nutation drives, making it a promising transmission solution.
Yuxin Wang, Wang Li, Yuqiang Cai, Dengyang Zhao, Yi Liu, Jingzi Zhang, Xueyan Zhang   +6 more
doaj   +1 more source

Research on transmission characteristics and torsional vibration control of hybrid transmission wind turbines

Sustainable Energy Technologies and Assessments
Abstract As wind turbines become larger and move into deeper sea, their operating environment is getting more and more harsh, which puts higher stability requirements of the transmission chain. The mechanical-hydraulic hybrid transmission (MHHT) combines mechanical and hydraulic systems to improve transmission stability.
Fuquan Dai, Yonggang Lin, Yajing Gu, Hongwei Liu, Xiqing Cheng, Wenting Chen, Yong Sun   +6 more
openaire   +1 more source

Active Torsional Vibration Suppression Strategy for Power-Split-HEV Driveline System Based on Dual-Loop Control

Machines
Power-split hybrid electric vehicles (power-split-HEVs) exhibit significant engine torque fluctuations due to their mechanical coupling with the driveline, leading to pronounced torsional vibration issues in the drive shaft.
Wei Zhang, Xiaocong Liang, Zhengda Han, Lei Bu, Jingang Liu, Bing Fu, Mozhang Jiang   +6 more
doaj   +1 more source

Torsional Vibration Characterization of Hybrid Power Systems via Disturbance Observer and Partitioned Learning

Energies
The series–parallel hybrid powertrain combines the advantages of both series and parallel configurations, offering optimal power performance and fuel efficiency. However, the presence of multiple excitation sources significantly complicates the torsional
Tao Zheng, Hui Xie, Boqiang Liang
doaj   +1 more source

The roles of side chains in Y6‐series non‐fullerene acceptors for high‐performance organic solar cells

Bulletin of the Korean Chemical Society, EarlyView.
The development of organic solar cells (OSCs) has been driven by structural modifications of Y6‐series non‐fullerene acceptors. In particular, side‐chain engineering regulates solubility, molecular packing, and energy levels, enabling efficiencies to increase from 15.7% to over 20%.
Peddaboodi Gopikrishna, Bomi Kim, Jongnam Park, BongSoo Kim   +3 more
wiley   +1 more source

Research of the Test and Diagnosis of Torsional Vibration of RV Reducer

Jixie chuandong, 2016
The torsional vibration testing and diagnostic technique for a RV reducer used in industrial robots under the condition of load inertia moment is described.
Huang Dishan, Liu Jinlei, Gu Jingjun
doaj  

Investigation of Axial–Torsional Vibration Characteristics and Vibration Mitigation Mechanism in Compound Percussive Drilling

Applied Sciences
Severe drill string vibrations, particularly stick–slip, significantly compromise drilling efficiency and tool longevity in deep hard formations. Compound percussive drilling (CPD) has emerged as a promising technique to mitigate these vibrations and enhance the rate of penetration (ROP).
Wei Wang, Boyu Guo, Gonghui Liu, Chunqing Zha, Tian Chen, Jun Li   +5 more
openaire   +1 more source

N─H or O─H Bond Activation With a Bicyclic Si4 Ring Compound

Chemistry – A European Journal, EarlyView.
The bicyclic Si4 ring compound with zwitterionic character reacts with NH3, H2O, and selected alcohols to give functionalized saturated silicon rings, siliconoid clusters with unsubstituted Si atoms, or simple 1,3‐addition products. The experimentally observed reactivity could be rationalized based on results from mechanistic calculations employing ...
Michael Quest, Florian Schreiner, Alexander Hepp, Constantin G. Daniliuc, Kasperi M. Salonen, Janne Körkkö, Heikki M. Tuononen, Felicitas Lips   +7 more
wiley   +1 more source