Results 51 to 60 of about 3,835 (288)

Design and numerical investigation on aero-hydrodynamic performance of an aerial-aquatic propeller

Kongqi donglixue xuebao
The aerial-aquatic propeller is a core component of unmanned aerial-aquatic vehicles. Aiming at the problem that the efficiency of aerial-aquatic propellers in air and water cannot be balanced, this paper proposes a design method for aerial-aquatic ...
Linyuan Luo, Zhaolin Chen, Xiangming Zheng, Chang Wang, Kaijie Lu   +4 more
doaj   +1 more source

Control and guidance systems for the navigation of a biomimetic autonomous underwater vehicle [PDF]

, 2011
The field of Autonomous Underwater Vehicles (AUVs) has increased dramatically in size and scope over the past three decades. Application areas for AUVs are numerous and varied, from deep sea exploration, to pipeline surveillance to mine clearing.
Tonello, Alberto
core  

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

Advanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena, Marco Bianco, Barbara Spagnolo, Muhammad Fayyaz Kashif, Alberto Bramati, Massimo De Vittorio, Ferruccio Pisanello   +6 more
wiley   +1 more source

Programmable 3D Photovoltaics via Mechanically Origami‐Coded Interlocked 3D Kirigami and Nano‐Root Anchored AgNWs–In–Ga Multiphasic Alloy Conductor

Advanced Materials, EarlyView.
Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang, Jiwon Ryu, Byungsoo Kang, Injong Oh, Dae‐Hee Cho, YoungHoi Cho, Seung S. Lee, Dong Hoe Kim, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Seungjun Chung, Byoung Koun Min, Phillip Lee   +15 more
wiley   +1 more source

The Propulsion Committee: final report and recommendations to the 25th ITTC [PDF]

, 1970
Details the investigation and findings of the 25th ITTC Propulsion Committee over the period 2005-2008. Tasks were as follows:1. Update the state-of-the-art for propulsion systems emphasizing developments since the 2005 ITTC conference.2.
Kim, K., Minchev, A., Van, S.H., Semionicheva, E.Y., Becchi, P., Korkut, E., Turnock, S.R., Ando, J., Zhou, W.X.   +8 more
core  

Full-scale simulation and analysis of self-propulsion performance of CRP-propelled high speed underwater vehicles

Zhongguo Jianchuan Yanjiu, 2018
[Objectives] In order to numerically predict the self-propulsion factors of high speed underwater vehicles equipped with Contra-Rotating Propellers (CRP),[Methods] RANS modeling approaches are developed for vehicle resistance,self-propulsion and CRP open-
HUANG Yongsheng, YANG Chenjun, DONG Xiaoqian   +2 more
doaj   +1 more source

A Novel Dual-Rotor Ultrasonic Motor for Underwater Propulsion [PDF]

Applied Sciences, 2019
Micro underwater vehicles (MUVs) have been highlighted recently for underwater explorations because of their high maneuverability, low price, great flexibility, etc. The thrusters of most conventional MUVs are driven by electromagnetic motors, which need big mechanical transmission parts and are prone to being interrupted by the variance of ambient ...
Xiaolong Lu, Zhiwen Wang, Hui Shen, Kangdong Zhao, Tianyue Pan, Dexu Kong, Jens Twiefel   +6 more
openaire   +1 more source

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

Advanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar, Carlos Alejandro Jimenez‐Rodriguez, Railia Biktimirova, Ilka Hermes, Thomas Kurth, My Duyen Pham, Mikhail Tsurkan, Jens Friedrichs, Francis L. C. Morgan, Hans Kleemann, Olga Guskova, Uwe Freudenberg, Peter Fratzl, Carsten Werner, Christoph Tondera, Ivan R. Minev   +15 more
wiley   +1 more source

On-Device Intelligence for AI-Enabled Bio-Inspired Autonomous Underwater Vehicles (AUVs)

IEEE Access
This paper introduces an innovative approach to underwater exploration by integrating Artificial Intelligence (AI) into Autonomous Underwater Vehicles (AUVs). This collaboration between AI and biomimicry marks a new era for AUVs, enabling them to emulate
Aryan Anand, M Yuva Bharath, Prabha Sundaravadivel, J. Preetha Roselyn, R. Annie Uthra   +4 more
doaj   +1 more source

Underwater Glider Propulsion Systems VBS Part 1: VBS Sizing and Glider Performance Analysis

Journal of Marine Science and Engineering, 2020
The Variable Buoyancy System (VBS) is a critical device in the operation of underwater gliders that should be properly sized to achieve the required vehicle propulsion; safety within the operating range; and adequate efficiency at the nominal depth ...
Juan Pablo Orozco-Muñiz, Tomas Salgado-Jimenez, Noe Amir Rodriguez-Olivares   +2 more
doaj   +1 more source