Results 1 to 10 of about 99,009 (221)
Potential Applications of a Novel Ballast Water Pretreatment Device: Grinding Device
Journal of Marine Science and Engineering, 2021 To investigate the removal efficiency of the grinding device (GD) as a potential replacement for the pretreatment filtration device of ballast water, solid grinding and viability experiment were conducted according to a treatment flow rate of 5 tons ...
Bonggil Hyun +6 more
doaj +1 more source
A Laboratory Study of Pressure Distribution and Residual Settlements in Wide Grading Double Layer Railway Ballast under Long-Term Cyclic Loading [PDF]
Archives of Civil Engineering, 2020 Ballast layer has weighty share in the lifecycle costs of railway track. The strict standards and maintenance rules of ballast grading significantly contribute to the ballast costs.
Mykola Sysyn +3 more
doaj +1 more source
Journal of Marine Science and Engineering, 2022 Copepods, the dominant member of zooplankton and major grazers of phytoplankton in the pelagic ecosystem, are at risk from exposure to antifouling biocides.
Bonggil Hyun +6 more
doaj +1 more source
Journal of Marine Science and Engineering, 2022 To prevent the invasion of alien species, the International Maritime Organization and the United States Costal Guard require that a ballast water management system (BWMS) be installed on ships to treat the ballast water before discharging it.
Pung-Guk Jang +6 more
doaj +1 more source
Shear resistance of rubber-ballast composites in simulated water and acid soaked conditions [PDF]
, 2016 Ballast is one of the main structures for the railway tracks. It can resist the lateral movement under dynamic loading transferred by the passing trains with repeatedly.
Chan, Chee Ming, SM Johan, Siti Farhanah
core +3 more sources
Laboratory investigation of railway-used ballast morphology using 3D imaging data analyses
Case Studies in Construction Materials, 2023 Railway ballast deteriorates over time due to cyclic loading and environmental factors, necessitating its replacement to maintain track stability. However, the potential shortage of fresh ballast has posed challenges in replacing used ballast. One of the
Krittaya Varuntanya +5 more
doaj +1 more source
Studying the Strengthening Effect of Railway Ballast in the Direct Shear Test due to Insertion of Middle-size Ballast Particles [PDF]
Journal of Applied and Computational Mechanics, 2022 This paper summarized some common grading curves of ballast layers and found that the content of 16-32 mm ballast particles ("middle-size particles" in this paper) had a significant effect on the direct shear performance of the ballast layer.
Jianxing Liu +4 more
doaj +1 more source
Fractal and Fractional, 2022 Breakage of particles has a great influence on the particle size distribution (PSD) and the associated mechanical behavior of ballast under train loads.
Cheng Chen +5 more
doaj +1 more source
Journal of Marine Science and Engineering, 2020 An in situ mesocosm experiment was performed to investigate the combined effects of ocean acidification and warming on the coastal phytoplankton standing stock and species composition of a eutrophic coastal area in the temperate-subtropical region ...
Bonggil Hyun +8 more
doaj +1 more source
Acta Technica Jaurinensis, 2021 This paper presents a short literature review related to the fragmentation of the railway crushed ballast particles. With the help of the processed articles with the main topic of discrete element modelling (DEM) we aim to provide some insight into the ...
Erika Juhász, Szabolcs Fischer
doaj +1 more source