Results 21 to 30 of about 1,141 (177)

Motion response characteristics of the longitudinal profile of a wave glider based on a multi-segment hinged rigid rod umbilical cable model

Zhongguo Jianchuan Yanjiu
ObjectiveThis study aims to develop a dynamic model of the longitudinal profile motion of wave gliders by modeling the umbilical cable as multiple hinged rigid rods, and to investigate the effects of environmental and umbilical cable parameters on the ...
Shaoyu SHI, Yanhui AI, Weixin ZHOU, Zifeng SHI, Xingran LI, Jingxi LIU   +5 more
doaj   +1 more source

Simulation Study on Hydraulic System of Shallow Mud Line Christmas Tree

Shiyou jixie, 2022
In order to explore the hydraulic system performance of ST4×2-5M shallow mud line Christmas tree, the parameters, functions and principles of the 3 key parts affecting the performance of the hydraulic system were studied, and the models of gate ...
Li Huan, Sun Chuanxuan, Li Lei, Lei Wanzheng, Liu Wenxiao   +4 more
doaj  

Numerical and Experimental Analysis of Umbilical Cables under Tension [PDF]

Advanced Composites Letters, 2017
Umbilical cables are composite structures that consisting of metallic material and polymeric material. Analysing tension behaviour under axial loading is a key requirement to design the structure. A full three-dimensional finite element model is established in which the effect of radial deformation is given more attention.
Qingzhen Lu, Jinlong Chen, zhixun Yang, Yin Yuan chao, Qianjin Yue   +4 more
openaire   +1 more source

Prediction of the temperature distribution of partially submersed umbilical cables [PDF]

Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2012
The objective of this work is to predict the temperature distribution of partially submersed umbilical cables under different operating and environmental conditions. The commercial code Fluent® was used to simulate the heat transfer and the air fluid flow of part of a vertical umbilical cable near the air-water interface.
Krieger, Guenther Carlos, Yanagihara, Jurandir Itizo   +1 more
openaire   +3 more sources

A Study on the Problem of AC Corrosion of Power Umbilical Cables Caused by Electromagnetic Induction Phenomena

Energies
During the normal laying and operation of a three-core umbilical cable, AC current can easily lead to AC electrochemical corrosion on the outer surface of the steel tube.
Pengjin Shao, Haijun Li, Pan Pan, Qibing Shao, Zhen Li, Jiaming Yang   +5 more
doaj   +1 more source

Study on Dynamic Behavior of Unmanned Surface Vehicle-Linked Unmanned Underwater Vehicle System for Underwater Exploration

Sensors, 2020
This paper focuses on motion analysis of a coupled unmanned surface vehicle (USV)−umbilical cable (UC)−unmanned underwater vehicle (UUV) system to investigate the interaction behavior between the vehicles and the UC in the ocean environment ...
Mai The Vu, Mien Van, Duc Hong Phuc Bui, Quang Thang Do, Tuan-Tu Huynh, Sang-Do Lee, Hyeung-Sik Choi   +6 more
doaj   +1 more source

A Blood‐Derived Factor Rescues ALS: Platelet Factor 4 Activates OPTN‐Dependent Autophagy to Clear SOD1 Aggregates Independently of PINK1

Advanced Science, EarlyView.
Systemic platelet factor 4 (PF4) is significantly depleted in amyotrophic lateral sclerosis (ALS). Peripheral PF4 replenishment restores central proteostasis by driving OPTN‐dependent, PINK1‐independent selective autophagy in motor neurons. This intervention effectively clears toxic SOD1 aggregates, blunts glial activation, and preserves neuromuscular ...
Qingjian Xie, Yanbo Zhu, Wenhua Jiang, Haobo Xie, Yaojia Li, Mengjie Hu, Kezheng Li, Huan Yu, Yixuan Pan, Chaoyi Jiang, Xueqin Song, Dongsheng Fan, Binbin Deng   +12 more
wiley   +1 more source

Comparative Study on Alternative Umbilical Cable Configurations for Deep-Sea Mining System

Journal of Marine Science and Engineering
The umbilical cable plays a critical role in deep-sea mining systems by connecting the surface support vessel to the mining vehicle. If the spatial configuration of the umbilical cable is unsuitable for mining vehicle operations, it may experience ...
Wen Shen, Zhenqin Yuan, Shuqing Wang, Lei Li, Xinrui Yang, Jiancheng Liu, Chaojun Huang, Shipeng Wang, Fengluo Chen   +8 more
doaj   +1 more source

Liquid Gallium Nanozyme Coatings Enable Sustained Nitric Oxide Generation With Antioxidant and Anti‐Inflammatory Functions

Advanced Science, EarlyView.
Liquid gallium (Ga) acts as a catalytic center for nitric oxide (NO) generation within a tannic acid–zirconium metal–phenolic network coating. Stabilized Ga nanoparticles catalyze S‐nitrosothiol decomposition through surface electron transfer, enabling controlled NO production, enhancing endothelial biocompatibility, and providing antioxidant and anti ...
Franco Centurion, Kang Lin, Shu Geng, Siti Nur Asyura Adzlan, Qingqing Fan, Federico Mazur, Ravindra Kokate, Priyank Kumar, Christina Cortez‐Jugo, Frank Caruso, Rona Chandrawati   +10 more
wiley   +1 more source

A Hybrid Gaussian Process Framework for Rapid Prediction of Umbilical Cable Mechanics in Deep-Sea Mining

Journal of Marine Science and Engineering
The umbilical cable is an important component of the deep-sea mining system, serving as the sole connection between the surface support vessel and the seabed mining system.
Zhihao Yu, Chaojun Huang, Shuqing Wang, Jiancheng Liu, Yuankun Sun, Lei Li, Wencheng Liu, Liwei Yu, Yuanhe Li   +8 more
doaj   +1 more source