Results 91 to 100 of about 179,335 (194)

Design and implementation of a test setup for electric mobility scooter for the disabled

Measurement + Control, 2019
In this study, a test setup was designed for three- and/or four-wheeled electric mobility scooter models used by disabled or old people. This system is composed of a test platform that enables measurement of vehicular velocity, a data acquisition card ...
Ramazan Akkaya, Fatih Alpaslan Kazan
doaj   +1 more source

Physics‐Constrained Constitutive Learning of Rate‐Limiting Timescales for Efficient Hydrogen‐Based Direct Reduction for Green Steel Making

Advanced Science, EarlyView.
A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai, Barak Ratzker, Pasquale Cavaliere, Dierk Raabe   +3 more
wiley   +1 more source

Motor Airgap Torque Harmonics Due to Cascaded H-Bridge Inverter Operating with Failed Cells

Energies
This paper proposes the expressions for the motor airgap torque harmonics induced by a cascaded H-bridge inverter operating with failed cells. These variable frequency drive systems (VFDs), are widely used in oil and gas applications, where a torsional ...
Hamid Hamza, Ideal Oscar Libouga, Pascal M. Lingom, Joseph Song-Manguelle, Mamadou Lamine Doumbia   +4 more
doaj   +1 more source

A Worm‐Inspired Origami Robot with Multimodal Locomotion for Adaptive Mobility in Complex Pipeline Environments

Advanced Science, EarlyView.
An origami worm‐inspired robot achieves multimodal locomotion in confined pipelines through mechatronic integration that embeds actuation, control, and communication within each origami module. Large, reversible configuration and dimensional changes enable 25 gaits synthesized by a unified framework across peristaltic, inchworm, and wheel‐rolling modes
Qiwei Zhang, Kangning Tan, Zihan He, Hongsen Pang, Yanjie Wang, Hongbin Fang, Jian Xu   +6 more
wiley   +1 more source

A Portable Soft Robotic Glove with Fully Functional Thumb Assistance for Complex Dexterous Fine Motor Skills

Advanced Science, EarlyView.
A portable, sensorized, and controlled dexterous thumb‐enhanced glove helps stroke survivors swipe phones, twist caps, and perform other tasks. It is based on a powerful continuously, segmented origami dual chamber actuator to achieve active thumb CMC and MCP joint assistance and passively extend the IP joint.
Disheng Xie, Zhen Wang, Zhongping Ye, Minghao Liu, Xiangqian Shi, Shuk Fan Tong, Jianbin Liu, Chuanbin Mao, Thomas W. Leung, Haitao Liu, Raymond Kai‐yu Tong   +10 more
wiley   +1 more source

Shaft power estimation in induction motor operating under unbalanced and harmonics voltages [PDF]

, 2016
In this work the application of a method to estimate the shaft power of induction motors operating in the presences of unbalanced and harmonics voltages is presented.
Sousa Santos, Vladimir, Viego Felipe, Percy R., Balbis Morejón, Milen, Quispe Oqueña, Enrique Ciro, Gómez Sarduy, Julio Rafael   +4 more
core   +1 more source

Time Resolved DNA Barcodes for Information Encoding and Dynamic Encryption

Advanced Science, EarlyView.
This study establishes a molecular information platform based on DNA Temporal Barcodes. Information is encoded through combinations of DNA tags with distinct retention times, while dynamic encryption is achieved through a key‐triggered DNA ligation.
Likang Chu, Haixia Wang, Haiyan Gao, Sixian Chen, Zilong Li, Zhanyihao Hao, Lei He, Da Han   +7 more
wiley   +1 more source

A Disulfide‐Sticker Strategy for Marine Adhesive Coatings: From Deciphering Self‐Assembly Mechanism to Functional Application in Hair Regeneration

Advanced Science, EarlyView.
A disulfide‐sticker strategy, coupled with Ca2+ coordination, drives the hierarchical self‐assembly of a recombinant scallop adhesive protein into fishnet‐like nanostructures, affording a coating with versatile wet adhesion and intrinsic antioxidant activity. This biocompatible coating markedly promotes hair regeneration by activating follicular niches,
Lulu Wang, Juan Yang, Xin Jiang, Zhanghui Zheng, Hongyu Wei, Na Li, Xiangqiang Chu, Weizhi Liu   +7 more
wiley   +1 more source

Comparative study of the shaft voltages in different large power induction motors [PDF]

, 2008
The paper presents results of researches aimed at bearing faults detection in the high power induction motors. In chapter 2 are presented the causes of shaft voltages and bearing currents forming.
Kwak, J., Niestrój, R., Drak, B., Lipiński, J.M., Zientek, P.   +4 more
core  

Somatic Evolution of a Germline Antibody Expands its Breadth to Neutralize Early SARS‐CoV‐2 Omicron Variants

Advanced Science, EarlyView.
Engineering of the 148‐germline (148‐GL) antibody reveals a roadmap for overcoming SARS‐CoV‐2 viral escape. By introducing four specific somatic hypermutations, the resulting 148‐M4 variant restores potent neutralization against Omicron BA.1 and BA.4/5.
Huibin Lv, Ziqi Feng, Qi Wen Teo, Chunke Chen, Akshita B. Gopal, Danbi Choi, Timothy J. C. Tan, Yun Sang Tang, Lewis Siu, Armita Nourmohammad, Roberto Bruzzone, Ian A. Wilson, Meng Yuan, Nicholas C. Wu, Chris K. P. Mok   +14 more
wiley   +1 more source