Results 51 to 60 of about 5,022,071 (227)

Dependence of shape on particle size for a crushed rock railway ballast [PDF]

, 2013
Laboratory testing of railway ballast poses practical difficulties because the particle size is often too large for most standard apparatus. There are therefore advantages in developing a scaled material whose behavior is representative of the full size ...
Le Pen, Louis, Powrie, W., Ahmed, S., Ahmed, Sharif, Zervos, Antonis, Powrie, William, Le Pen, L., Aingaran, Sinthuja, Zervos, A., Aingaran, S.   +9 more
core   +1 more source

Ballast Water Management in the Black Sea’s Ports

Journal of Marine Science and Engineering, 2018
The objective of this work is to develop a case study in order to improve the ballast water management in the Black Sea’s ports. From this perspective, the present paper provides an extensive explanation about the main issues related to the control
Vasile Rata, Carmen Gasparotti, Liliana Rusu   +2 more
doaj   +1 more source

From Dictionaries to Deep Learning: A Systematic Mapping Review of the Natural Language Processing Tasks Used to Analyze Sustainability Reports

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study aims at shedding light on the vast landscape of natural language processing (NLP) tasks used when analyzing sustainability reports or sustainability within integrated annual reports. A systematic literature review is carried out, identifying 160 studies of relevance.
Hannes Cordes
wiley   +1 more source

Development of Biological Risk Assessment Protocols for Evaluating the Risks of In-Water Cleaning of Hull-Fouling Organisms

Journal of Marine Science and Engineering
Herein, we evaluate the scientific basis for managing hull fouling of ships entering Korean ports, diagnose biological risks that may occur when in-water cleaning (IWC) systems remove hull fouling, and present a protocol for evaluating these risks (the ...
Bonggil Hyun, Pung-Guk Jang, Min-Chul Jang, Jung-Hoon Kang, Ju-Hyoung Kim, Jang-Seu Ki, Dong Han Choi, Ok Hwan Yu, Jin-Young Seo, Woo-Jin Lee, Kyoungsoon Shin   +10 more
doaj   +1 more source

Systems and Operation of Ballast Water in Ships with the Changing Ballast Water Management Policy

, 2021
Bio-invasion caused due to ballast water discharge is one of many problems in marine pollution. Countries such as Canada, Brazil, USA and Australia recognized the problems associated with ballasting and deballasting. Countries affected with invasive species formulated specific laws for discharging ballast water in their respective ports.
Eleyadath Lakshmi, Machinchery Priya, Velayudhan Sivanandan Achari   +2 more
openaire   +2 more sources

Biosurfactant‐assisted recovery and remediation of hydrocarbons from oily sludge using a mobile aerated washing system

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The oil industry generates oily sludge, the accumulation of which poses a serious environmental problem. Conventional methods require high costs, specialized equipment, and qualified personnel. This waste can be treated using biosurfactants.
Maria Eduarda Pereira da Silva, Fabíola Carolina Gomes de Almeida, Gabriel Neves da Motta Silveira, Bruno Humberto de Almeida Silva, Maria da Glória Conceição da Silva, Celmy Maria Bezerra de Menezes Barbosa, Leonie Asfora Sarubbo   +6 more
wiley   +1 more source

Effectiveness of a Barge-Based Ballast Water Treatment System for Multi-Terminal Ports

Promet (Zagreb), 2015
The paper presents outcomes of the discrete event simulation of the ballast water management in a multi-terminal port. The simulation includes ship’s manoeuvring, cargo and ballast operations and a barge-based ballast water treatment system operating ...
Lovro Maglić, Damir Zec, Vlado Frančić   +2 more
doaj   +1 more source

System and eco-material design based on slow-release ferrate(vi) combined with ultrasound for ballast water treatment

Open Engineering, 2022
The problem of ballast water is caused by microorganisms. The solution to solve this problem is ballast water disinfection. Until the recent day, there have not been many practical solutions.
Laksono Fajar Budi, Majid Dian, Prabowo Aditya Rio   +2 more
doaj   +1 more source

Intercomparison of carbon‐13 and carbon‐14 tracer approaches for estimating marine calcification and net primary production

Limnology and Oceanography: Methods, EarlyView.
Abstract Accurate measurements of phytoplankton net primary production (NPP) and calcification are essential for quantifying marine carbon cycling, yet in situ calcification rates remain poorly constrained. We compared 13C‐ and 14C‐based tracer methods for NPP in laboratory cultures of the diatom Chaetoceros tenuissimus and the coccolithophore ...
Chloe L. Smith, Austin Grubb, Kay D. Bidle, Kimberlee Thamatrakoln, Adam V. Subhas   +4 more
wiley   +1 more source

Metabarcoding and machine learning analysis of environmental DNA in ballast water arriving to hub ports

Environment International, 2019
While ballast water has long been linked to the global transport of invasive species, little is known about its microbiome. Herein, we used 16S rRNA gene sequencing and metabarcoding to perform the most comprehensive microbiological survey of ballast ...
William A. Gerhard, Claudia K. Gunsch
doaj   +1 more source