Results 41 to 50 of about 190 (169)

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

Development Status and Trend of U.S. Equipment for Underwater Special Operations

open access: yes水下无人系统学报
In recent years, as the western countries led by the United States have shifted their strategic focus from ocean to offshore, offshore shallow waters have become the focus of attack and defense for countries.
Zhiwei ZHANG   +4 more
doaj   +1 more source

Obstacle Avoidance for Unmanned Undersea Vehicle in Unknown Unstructured Environment [PDF]

open access: yesMathematical Problems in Engineering, 2013
To avoid obstacle in the unknown environment for unmanned undersea vehicle (UUV), an obstacle avoiding system based on improved vector field histogram (VFH) is designed. Forward looking sonar is used to detect the environment, and the divisional sonar modal is applied to deal with the measure uncertainty.
Zheping Yan   +4 more
openaire   +1 more source

Effectiveness Evaluation of Intelligent UUV Target Recognition and Counter-contermeasure Based on TOPSIS with Weighting Combination

open access: yes水下无人系统学报
At present, the operational environment for underwater acoustic contermeasure is increasingly complicated. The emphasis on future underwater warfare is mainly focused on the contermeasure and counter-contermeasure of intelligent underwater unmanned ...
Xu WANG   +3 more
doaj   +1 more source

Visual Recognition and Detection System for Small Targets of Near-Bottom Exploration Type Bionic UUV

open access: yes水下无人系统学报, 2023
The bionic unmanned undersea vehicles(UUVs) replace human labor and realize underwater operation by imitating the movement principle of marine organisms. Compared with the traditional UUV, the bionic UUV has the bionics advantages of high stability, high
Baizhong CHEN, Chonglei WANG, Chunyu GUO
doaj   +1 more source

Enabling Under Ice Glider Operations: A Backseat Driver Approach

open access: yesJournal of Field Robotics, Volume 43, Issue 5, Page 3292-3311, August 2026.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang   +12 more
wiley   +1 more source

Beyond 5G and Non‐terrestrial Network (NTN) Integrated Architecture: Access Challenges for Expanding Artificial Intelligence of Things (AIoT)

open access: yesInternational Journal of Satellite Communications and Networking, Volume 44, Issue 4, Page 378-393, July/August 2026.
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley   +1 more source

Assessing Gray Zone Risks in East Asia: A Threat Classification Framework Using Taiwan's ADIZ as a Case Study

open access: yesAsian Politics &Policy, Volume 18, Issue 3, July 2026.
ABSTRACT Gray‐zone activities have become a central feature of security competition in East Asia, particularly in the Taiwan Strait, where persistent military operations blur the boundary between coercion and armed conflict. This study develops a structured threat‐assessment framework for evaluating the intensity of PLA aerial gray‐zone pressure around
Shih‐Yin Liang, Hsuan‐Lei Shao
wiley   +1 more source

An Overview of Tsunami Hazards in the Southwest Pacific Ocean

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
The southwest Pacific region is geologically complex and exhibits all the principal causes of tsunami generation. While contemporary events and historical catalogs indicate that trans‐Pacific tsunamis have affected this area (∼18% of tsunamis reported globally), it is unique in that a large part of the tsunami effects over the ∼200‐year historical ...
Jean H. M. Roger   +13 more
wiley   +1 more source

Template‐Based Structured Electrodes for High Power and Durable Proton Exchange Membrane Fuel Cells

open access: yesSusMat, Volume 6, Issue 3, June 2026.
This article reviews advances in template‐based structured electrodes for proton exchange membrane fuel cells. The article discusses how engineered architectures improve mass and proton transport, membrane‐electrode interfaces, and catalyst utilization.
Yi Ren   +3 more
wiley   +1 more source

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