Results 31 to 40 of about 1,938,439 (188)

Damage Characteristics of Coated Cylindrical Shells Subjected to Underwater Contact Explosion

open access: yesShock and Vibration, 2014
It is of great significance for the protective design of submarine to study the influences of coverings on the damage characteristics of single and double cylindrical shells subjected to underwater contact explosions.
Zhi-fan Zhang, Fu-ren Ming, A-man Zhang
doaj   +1 more source

Design and test of underwater non-contact explosion shock protection floor for seamen

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives]In order to more effectively protect the surface ship seamen from the shock injury caused by underwater non-contact explosion,[Methods]the shock environments and safety limits for seafmen aboard surface ship are analyzed firstly.
Zhou Xin   +3 more
doaj   +1 more source

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

open access: yesAdvanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich   +2 more
wiley   +1 more source

On the reliability of the Autosub autonomous underwater vehicle [PDF]

open access: yes, 2003
As autonomous underwater vehicles (AUVs) enter operational service an assessment of their reliability is timely. Using the Autosub AUV as an example, several design issues affecting reliability are discussed, followed by an analysis of recorded faults ...
Stevenson, P.   +8 more
core  

Underwater Image Enhancement Using An Integrated Colour Model. [PDF]

open access: yes, 2007
In underwater situations, clarity of images are degraded by light absorption and scattering. This causes one colour to dominate the image.
Talib, Abdullah Zawawi   +3 more
core   +1 more source

Damage characteristic of caisson gravity wharf subjected to underwater contact and near-field explosion

open access: yesBaozha yu Chongji
To investigate the damage mechanism and load characteristics of caisson wharf under underwater contact and near-field explosion, a high-fidelity numerical model was conducted based on the scaled model tests of caisson wharf and verified by comparing the ...
Qi DONG   +4 more
doaj   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

open access: yesAdvanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis   +7 more
wiley   +1 more source

Underwater Shock Response of Circular HSLA Steel Plates

open access: yesShock and Vibration, 2000
Studies on shock response of circular plates subjected to underwater explosion is of interest to ship designers. Non-contact underwater explosion experiments were carried out on air backed circular High Strength Low Alloy (HSLA) steel plates of 4 mm ...
R. Rajendran, K. Narasimhan
doaj   +1 more source

Effects of underwater explosion bubble on shock environment of warship

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] In order to standardize the load system of a hull's shock environment and study the effects of bubble pulsation pressure on a hull's shock environment, [Methods] acoustic-structure coupling methods are used to simulate a hull subjected to a ...
ZENG Lingyu, CAI Shang, WANG Shiping
doaj   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

open access: yesAdvanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas   +6 more
wiley   +1 more source

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