Results 41 to 50 of about 2,557 (163)

Strategic control model in the shipbuilding industry [PDF]

open access: yesمطالعات مدیریت راهبردی
Shipbuilding companies need deep knowledge of strategic control in their industry to succeed over their foreign and domestic competitors. Unfortunately, most of them do not have sufficient knowledge of the topics related to strategy and strategic control
Vahid Khashei Varnamkhasti   +1 more
doaj   +1 more source

Unmanned aerial vehicle positioning based on multi-sensor information fusion

open access: yesGeo-spatial Information Science, 2018
Unmanned aerial vehicle (UAV) positioning is one of the key techniques in the field of UAV navigation. Although the high positioning precision of UAV can be achieved through global positioning system (GPS), the frequency of updating signal in GPS is low ...
Wenjun Li, Zhaoyu Fu
doaj   +1 more source

A Vertical Hit Method for Striking the Middle of a Large Undersea Vehicle

open access: yes水下无人系统学报
Due to the random drift of the target aiming point of the detection system on large undersea vehicles, high-speed attack-type unmanned undersea vehicles(UUVs) often cross the front and rear sides of large undersea vehicles vertically in engineering ...
Meiru ZHANG, Zhiwen WEN, Yanbo LIU
doaj   +1 more source

Design and Verification of End Face Bidirectional Self-Sealing Structure

open access: yes水下无人系统学报
In order to achieve the bidirectional sealing of the end face of underwater large-caliber hatch covers and solve the problem of the large reaction force of the sealing ring during the closing process, this paper innovatively combined the good self ...
Kaifu LI   +5 more
doaj   +1 more source

Shipbuilding 4.0: A Systematic Literature Review

open access: yesApplied Sciences
Existing research in the shipbuilding field tends to focus on isolated single aspects of Industry 4.0 (I4.0) without a full picture. To address this gap, this paper seeks to offer a thorough and in-depth examination of the concepts and technologies ...
Xiaowei Zhang, Daoyi Chen
doaj   +1 more source

Oxidative stress in occupational exposure to styrene vapors and dangerous chemicals in the shipbuilding industry. [PDF]

open access: yesFront Toxicol, 2023
Pigini D   +7 more
europepmc   +1 more source

Man-hour Estimation Model based on Standard Operation Unit for Flexible Manufacturing System

open access: yesMATEC Web of Conferences, 2017
In flexible manufacturing system, the estimation of man-hour is a difficult problem because of its production-diversity. To explore a more effective method, this paper tried to estimate man-hour from the perspective of operation`s character by ...
Ye Zhenggeng, Cui Jiachao, Zhou Fuli
doaj   +1 more source

Low-Power Long-Distance Wireless Communication Technologies for Marine Buoys: A Review

open access: yes水下无人系统学报
With the advancement of global ocean development and utilization, marine buoys, as key ocean observation devices, play a critical role in marine environment monitoring, weather forecasting, and ocean resource development.
Xiaobo WANG, Xujuan HU, Xuefeng JI
doaj   +1 more source

A Fault-Tolerant Navigation Algorithm for AUVs Based on Collaborative Fault Detection and Robust Estimation

open access: yes水下无人系统学报
In the integrated navigation system of autonomous undersea vehicles(AUVs), traditional adaptive filtering algorithms struggle to achieve effective fault tolerance against slowly varying faults of the Doppler velocity log(DVL) due to the conflict between ...
Ruibin XIAO, Tiefeng MA, Youfeng HU
doaj   +1 more source

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