Results 61 to 70 of about 5,022,071 (227)

Linear Mechatronic Modeling of Rectangular Tank Sloshing Dynamics

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Sloshing dynamics in partially filled tanks can strongly influence system‐level behavior when fluid motion couples with rigid‐body dynamics. This paper presents a linear and acausal two‐dimensional sloshing model for rectangular tanks, based on the reformulation of established sloshing theory within a modular, multi‐domain modeling framework ...
Magnus Steinstø, Eilif Pedersen
wiley   +1 more source

An Anisotropic Constitutive Model for Crushable Geomaterials Based on Non‐Stationary Critical State Line Concept

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT In this paper, the dependencies of granular soil behaviour on particle crushing and fabric anisotropy are formulated within a novel model based on bounding surface plasticity theory enriched by the non‐stationary critical state line (NCSL) concept.
Hesam Dejaloud, Hamed Taghavizade, Mohammad Rezania   +2 more
wiley   +1 more source

Simulation of Ballast Water Dispersion in the Gulf of Tonkin and Offshore Waters of Hai Phong Port, Vietnam

ASEAN Journal on Science and Technology for Development, 2018
Transfer of invasive alien organisms and their negative impacts have been recorded around the world. It is estimated that approximately 7,000 species of marine creatures are silently moved around the world by ballast water every hour. Recently, discharge
Hoang Mai Le, Cong Minh Nguyen, Thanh Ca Vu, Thanh Thuy Tran, Van Dien Nguyen, Huy Ram Dang   +5 more
doaj   +1 more source

Design and Testing of a Minimal Configuration Underwater Micro‐Glider: Automating Lake and Reservoir Monitoring

Journal of Field Robotics, EarlyView.
ABSTRACT Uncrewed underwater vehicles (UUVs) have transformed oceanographic research through autonomous data gathering. Similarly, lake and other aquatic research can potentially be automated and transformed. However, UUVs would need to be smaller, lighter, less complex, and cheaper than currently available to make them more practical and user‐friendly
James M Rand, Alan Hunter, Danielle Wain, Lee D Bryant   +3 more
wiley   +1 more source

The Biological Invasion Caused by Ship Ballast Water

Haiyang Kaifa yu guanli, 2022
In order to ensure the safety of marine ecology and aquaculture in China, this paper introduced the biological invasion caused by ship ballast water discharge and its related international standards and legal provisions, and put forward some suggestions ...
Yanhui XIE, Jiaqiao LI, Zeen SI, Shuyin ZHENG, Jianfang LIU, Na ZHANG   +5 more
doaj  

KPI (KEY PERFORMANCE INDICATORS) APPLICATION ON BALLAST WATER TREATMENT SYSTEM SELECTION

Brodogradnja, 2017
Every day, more than 7,000 different marine species are transferred to different ecosystems via ballast water in ships. The introduction of invasive species can cause problems for native species.
Gülçin Vural, Fatma Yonsel
doaj   +1 more source

Simultaneous Detection of Viability and Concentration of Microalgae Cells Based on Chlorophyll Fluorescence and Bright Field Dual Imaging

Micromachines, 2021
Ship ballast water contains high concentration of plankton, bacteria, and other microorganisms. If the huge amount of ballast water is discharged without being inactivated, it will definitely spell disaster to the marine environment.
Yanjuan Wang, Junsheng Wang, Tianqi Wang, Chengxiao Wang   +3 more
doaj   +1 more source

BALLAST WATERS: PROBLEMS AND PERSPECTIVES

NAŠE MORE : znanstveni časopis za more i pomorstvo, 1995
This paper analyses the dangerous consequences of contamination of coastal waters by nonindigenous sea species spread by ships ballast waters. It specifically points out that the measures currently recommended to a void the danger are merely palliative and a radical solution is yet to be seen. Furthermore, the impacts of some nonindigenous species that
Ružinski, Nikola, Lovrić, Josip, Benović, Adam   +2 more
openaire   +5 more sources

The Return of the Allis Shad (Alosa alosa) to the Lower Navigable Reaches of the Seine: Locks Play a Role

River Research and Applications, EarlyView.
ABSTRACT In France, it is estimated that shads (Alosa spp.) have lost 69% of their historical range, mainly due to disrupted river connectivity. After an absence of one century, signs of their return in the Seine River have been recorded over the past two decades: adult and juvenile specimens have been caught by anglers or recorded at video‐counting ...
Céline Le Pichon, Frédérique Bau, Armand Michelot, Evelyne Tales, Sébastien Grall, Eric Rochard   +5 more
wiley   +1 more source

Numerical simulation of temperature field in side ballast tank of polar ship at low temperature

Zhongguo Jianchuan Yanjiu, 2023
ObjectivesThis paper aims to analyze the influence of polar low temperature environment and ballast water capacity on the dynamic change process of the temperature field in polar ship's ballast tank.
Shifeng DING, Yangfan HU, Li ZHOU, Jing CAO, Renwei LIU, Zhibing LIU   +5 more
doaj   +1 more source