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Journal articles on the topic 'Transport in porus environment'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Sherif Adham Mohamed. "Theoretical Drying Model of Water Vapor Pressure for Imbibed Porous Material with Sea Water subjected to Weather Conditions." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 87, no. 2 (2021): 127–36. http://dx.doi.org/10.37934/arfmts.87.2.127136.

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The drying model of porous material has been studied and solved. The drying model solves the drying of porous material if the porous material is saturated or unsaturated with salt solution. Local thermodynamic equilibrium was not assumed in the mathematical model for describing the multi-phase flow in the unsaturated porous media using the energy and mass conservation equations to describe the heat and mass transfer during the drying. The vapor pressure inside porous material voids is built from the vapor mass transport through material thickness and from the void’s water content evaporation.

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Mouhammad, Saif A. "Transport Processes in Environments with Irregular Structure." Material Science Research India 8, no. 1 (2011): 07–15. http://dx.doi.org/10.13005/msri/080102.

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In this work we consider a principally new statistical approach to the theory of processes of transport in a two-phase condensed environment with randomly distributed non-uniform surface structure. Taking this approach as a base, we considered diffusion in a chaotic porous environment. Such a structure is described with the aid of a curvilinear orthogonal coordinates system natural for geometrical porous surface. The method of averaging the diffusion equation is developed. The equations for average diffused concentration in a porous surface of a solution of ionic components are obtained. These

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Beškovnik, Bojan, and Patricija Bajec. "STRATEGIES AND APPROACH FOR SMART CITY–PORT ECOSYSTEMS DEVELOPMENT SUPPORTED BY THE INTERNET OF THINGS." Transport 36, no. 5 (2021): 433–43. http://dx.doi.org/10.3846/transport.2021.16194.

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The article presents a new contribution to understanding and building novel phenomena of Smart City–Port (SCP) ecosystems and new approaches for the use of new technical and technological findings. The main aim is to elaborate specific strategies SCP ecosystem can secure in the future and an approach for synchronised SCP development for adaption to growing urbanization, mobility and business development, where all stakeholders would take an active role. Based on analysed literature 19 strategies for common smart development of cities and ports are highlighted. The relatively new phenomena of t

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Huang, Xiaoling, Yawei Wang, Xiamei Dai, Jack Xunjie Luo, and Jihong Chen. "EVALUATION OF PORT EFFICIENCY IN SHANGHAI PORT AND BUSAN PORT BASED ON THREE-STAGE DEA MODEL WITH ENVIRONMENTAL CONCERNS." Transport 35, no. 5 (2019): 454–61. http://dx.doi.org/10.3846/transport.2019.11465.

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The global green development has led many ports to impose measures to reduce emissions and improve port efficiency. As large-scale construction can do damage to the environment, it is not supported under the green strategy, which makes it more important to make full use of existing resources in the port competition. While, whether there is a relationship between emissions and port efficiency, and whether the relationship can reflect the problems in port management are vital factors need to be considered when making port development strategy. To solve the two problems, this paper takes the case

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Kempka, Thomas, Svenja Steding, and Michael Kühn. "Verification of TRANSPORT Simulation Environment coupling with PHREEQC for reactive transport modelling." Advances in Geosciences 58 (November 3, 2022): 19–29. http://dx.doi.org/10.5194/adgeo-58-19-2022.

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Abstract. Many types of geologic subsurface utilisation are associated with fluid and heat flow as well as simultaneously occurring chemical reactions. For that reason, reactive transport models are required to understand and reproduce the governing processes. In this regard, reactive transport codes must be highly flexible to cover a wide range of applications, while being applicable by users without extensive programming skills at the same time. In this context, we present an extension of the Open Source and Open Access TRANSPORT Simulation Environment, which has been coupled with the geoche

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Żukowska, Sandra. "Concept of Green Ports. Case study of the Seaport in Gdynia." Prace Komisji Geografii Komunikacji PTG 23, no. 3 (2020): 61–68. http://dx.doi.org/10.4467/2543859xpkg.20.020.12788.

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World transport faces a serious challenge, which involves the detrimental impact of its activity on the environment. Marine transport is a significant link in the worldwide transport system, which provides the free flow of diversified cargoes and offers competitive prices compared to other modes of transport for the carriage of goods. Seaports enabling waterborne transport have a major impact on the economic, social and natural environment. Port managing authorities show growing awareness of the negative influence of port units on the surrounding environment. Concurrently, environmentally frie

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Kouhail, Yasmine, Ishai Dror, and Brian Berkowitz. "Current knowledge on transport and reactivity of technology-critical elements (TCEs) in soil and aquifer environments." Environmental Chemistry 17, no. 2 (2020): 118. http://dx.doi.org/10.1071/en19102.

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Environmental contextTechnology-critical elements, widely used in modern industry, are found in the environment as a result of both anthropogenic usage and natural sources. This review describes current knowledge on the transport of technology-critical elements in sand, soils and aquifer environments. The chemical compositions of the soils and groundwaters influence the transport of technology-critical elements, and natural colloids increase their mobility. AbstractTechnology-critical elements (TCEs) are now present in soil and aquifer environments, as a result not only of the geogenic origin

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Keppert, Martin, Monika Čáchová, and Dana Koňáková. "Transport of Liquids in Porous Rocks." Materials Science Forum 824 (July 2015): 117–20. http://dx.doi.org/10.4028/www.scientific.net/msf.824.117.

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The rate of transport of liquids in porous environment is crucial engineering problem. It has importance in many fields like chemical engineering, hydropedology, economic geology and also in building materials science. The intensity of a liquid transport in porous body can be analyzed be means of three concepts – sorptivity, permeability and diffusivity. The approaches applied in field of porous rocks are discussed. Water absorption coefficients of set of sedimentary rocks of wide porosity range were determined experimentally and the relationship between them and specific pore volume of rocks

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Kubičár, Ľudovít, Ján Hudec, Danica Fidríková, Peter Dieška, and Martin Vitkovič. "Effects in Monitoring of the Thermal Moisture Regime of Cultural Objects Located in Different Climate Conditions." Advanced Materials Research 1126 (October 2015): 93–98. http://dx.doi.org/10.4028/www.scientific.net/amr.1126.93.

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Historical monuments are most often built from materials (plaster, walls, rocks, etc.), which have a porous structure. The porous structure is characterized by a set of parameters that control its response to environment. In such structures, depending on the environmental conditions, we encounter with processes like vapor diffusion, adsorption, pore surface diffusion, capillary transport, etc. The processes are accompanied with the transport of heat energy and moisture. When monitoring of thermal - moisture regime of such structures we can find a wide range of effects such as wetting, drying,

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Tokarchuk, M. V. "Kinetic description of ion transport in the system "ionic solution – porous environment"." Mathematical Modeling and Computing 9, no. 3 (2022): 719–33. http://dx.doi.org/10.23939/mmc2022.03.719.

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A kinetic approach based on a modified chain of BBGKI equations for nonequilibrium particle distribution functions was used to describe the ion transfer processes in the ionic solution – porous medium system. A generalized kinetic equation of the revised Enskog–Vlasov–Landau theory for the nonequilibrium ion distribution function in the model of charged solid spheres is obtained, taking into account attractive short-range interactions for the ionic solution – porous medium system.

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Onwuegbuchunam, Donatus E., Kenneth O. Okeke, Chinemerem Igboanusi, and Ogochukwu Ugboma. "Structural changes in the global transport chain: Implications for ports." Journal of Sustainable Development of Transport and Logistics, 3, no. 1 (2018): 22–28. https://doi.org/10.14254/jsdtl.2018.3-1.2.

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Structural changes in trade and transport environment have come about in response to globalization of production centres, factors and consumption patterns coupled with technological advances in ship and shipping methods. The resulting demand pressure induced on supply chains means that supply chain partners must innovate to remain afloat. On the other hand, ports have been at the receiving end being a critical node in the supply chain. Through content analysis and review of extant literature, the structural changes in the global transport chains were assessed to determine their broad implicati

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Yang, Chenghao, Jiao Li, James Newkirk, et al. "Co-electrolysis of H2O and CO2in a solid oxide electrolysis cell with hierarchically structured porous electrodes." Journal of Materials Chemistry A 3, no. 31 (2015): 15913–19. http://dx.doi.org/10.1039/c5ta03264d.

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A solid oxide electrolysis cell with novel asymmetric-porous structured electrodes has been fabricated by freeze-drying tape-casting and impregnation methods. The straight channel-like pores in the porous electrode facilitate mass transport while the nano- or sub-micron-sized catalysts promote the electrode electrochemical reactions.

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Barić, Mate, Josip Orlović, Leonardo Šango, and Mateo Pedišić. "Energy Efficiency of Container Cargo Flow in Largest East Adriatic Ports." Journal of Maritime & Transportation Science 61, no. 1 (2021): 35–43. http://dx.doi.org/10.18048/2021.61.03.

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Modern cargo flow nowadays requires proper analysis in order to optimize the costs and environment impact. To properly assess the ports at eastern Adriatic region transport energy efficiency and emissions were analysed, including both sea and land transport. For the sea transport Otrant gate was chosen as an entry point in Adriatic Sea. The analysed ports are Trieste, Koper and Rijeka as well-established container terminals and ports of Zadar and Ploče as terminals which in future may provide significant service. For the land transport, using both truck and train, Budapest was chosen as a fina

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Cai, Ou Chen. "Influences of TiO₂ Nanoparticles on the Transport of Hydrophobic Organic Contaminant in Soil." Advanced Materials Research 1010-1012 (August 2014): 55–68. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.55.

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As nanotechnologies become more widely used, titania nanoparticles are being released to the subsurface environment via wastewater sludge applications. Titania nanoparticles are not only toxic to organisms in the environment, but recent studies revealed that they may also serve as carriers of hydrophobic organic contaminants and affect their fate and distribution in the subsurface environment. The mobility of titania nanoparticles varies depending on nanoparticle morphology characteristics, pH and the ionic strength of solutions, flow velocity, nanoparticle concentration, and the presence of s

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Haidine, A., A. Ait-Allal, A. Aqqal, and A. Dahbi. "NETWORKING LAYER FOR THE EVOLUTION OF MARITIME PORTS INTO A SMART ENVIRONMENT." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVI-4/W5-2021 (December 23, 2021): 251–57. http://dx.doi.org/10.5194/isprs-archives-xlvi-4-w5-2021-251-2021.

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Abstract. The maritime transport is playing an increasing and critical role on the worldwide trade; because it guarantee the delivery of 80% of the goods worldwide. The maritime ports are the articulation of the maritime transports, and therefore are responsible of (long delay in the ports means high risks for goods deterioration, higher costs for the logistics companies, longer occupation of containers for containers management companies, etc. In recent years some publications are talking about smart ports. In this paper we take some of the most recent models of smart port, and propose some e

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Oscar, Msamba. "Developing a Stochastic Model for Studying and Simulating Sediment Transport in Ports and Harbors." International Journal of Advances in Scientific Research and Engineering (ijasre) 5, no. 9 (2019): Sretechjournal Publication. https://doi.org/10.31695/IJASRE.2019.33527.

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<em>A particle model to describe and predict sediment transport in shallow water is developed with the use of random walk models. The model is developed by showing consistency between the Fokker-Plank equation and the Advection diffusion equations. Erosion and deposition process in the model are developed probabilistically where the erosion term is considered to be a constant and deposition term is taken as a function by relating sediment settling velocity and diffusion coefficient. Eventually, we simulated the particle model by considering three environment tests. In each environment test the

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Uyuşur, Burcu, Preston T. Snee, Chunyan Li, and Christophe J. G. Darnault. "Quantitative Imaging and In Situ Concentration Measurements of Quantum Dot Nanomaterials in Variably Saturated Porous Media." Journal of Nanomaterials 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/8237029.

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Knowledge of the fate and transport of nanoparticles in the subsurface environment is limited, as techniques to monitor and visualize the transport and distribution of nanoparticles in porous media and measure their in situ concentrations are lacking. To address these issues, we have developed a light transmission and fluorescence method to visualize and measure in situ concentrations of quantum dot (QD) nanoparticles in variably saturated environments. Calibration cells filled with sand as porous medium and various known water saturation levels and QD concentrations were prepared. By measurin

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Zhang, Ying, Chao Yu Zhang, Yu Fang Peng, and Jian Zhang. "Laboratory Simulation of Radon Migration in Porous Aquifer Medium." Advanced Materials Research 860-863 (December 2013): 978–81. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.978.

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In order to find out the migration rules of radon transport in porous aquifer medium,transport process of radon in natural groundwater environment was simulated by laboratory seepage sand box experiment.This paper made in-depth discussions on the migration rules of radon in groundwater and soil and revealed the behaviours of radon in the environment.The experimental results indicated that convection dominated on the movement of radon in porous aquifer medium.The lateral migration of radon was due to not only diffusion but also carrying of groundwater, adsorption of porous medium, decay and vol

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Grigor'yev, F. V., and A. S. Nuzhnyy. "Radionuclide Transport in Geological Environment Modeled in the GeRa Code with an Account Taken of Radioactive Decay Chains: Numerical Scheme Verification and Calculation Specifics." Radioactive Waste 27, no. 2 (2024): 95–101. http://dx.doi.org/10.25283/2587-9707-2024-2-95-101.

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The paper describes a numerical scheme implemented in the GeRa code to solve the problem of radionuclide transport in porous medium taking into account radioactive decay chains. It is based on a scheme of splitting by physical processes and the use of separate modules for solving transport and radioactive decay chain problems. Verification of the numerical scheme was performed using an analytical solution for a specific case of the problem formulation in a homogeneous porous medium. The study explores the error introduced into the numerical solution by the use of the splitting scheme. The stud

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Gil-Lopez, Tomas, and Amparo Verdu-Vazquez. "Environmental Analysis of the Use of Liquefied Natural Gas in Maritime Transport within the Port Environment." Sustainability 13, no. 21 (2021): 11989. http://dx.doi.org/10.3390/su132111989.

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Sustainable transport is gaining increasing importance in the political agenda. All modes of transport are obliged to reduce their emissions by both national and international governmental bodies, this requirement being even more necessary in the case of ports due to their traffic density and proximity to the city. The objective of this research is to estimate the atmospheric emissions generated during the operational phases, which are carried out close to Spanish ports. Due to its geographical position, Spain benefits from the routes of the Atlantic corridor and Mediterranean corridor belongi

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Guo, Bo, and Mark L. Brusseau. "Challenges and opportunities for porous media research to address PFAS groundwater contamination." InterPore Journal 1, no. 2 (2024): ipj240824–2. http://dx.doi.org/10.69631/ipj.v1i2nr35.

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Per- and polyfluoroalkyl substances (PFAS) have become one of the most important contaminants due to their ubiquitous presence in the environment and potentially profound impacts on human health and the environment even at parts per trillion (ppt) concentration levels. A growing number of field investigations have revealed that soils act as PFAS reservoirs at many contaminated sites, with significant amounts of PFAS accumulating over several decades. Because PFAS accumulated in soils may migrate downward to contaminate groundwater resources, understanding the fate and transport of PFAS in soil

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Amrite, Archis, Alexandra M. Oliveira, Yushan Yan, and Ajay Krishna Prasad. "A Low-Cost Bipolar Plate Comprising a Channeled Porous Transport Layer for Proton and Anion Exchange Membrane Electrolyzers." ECS Meeting Abstracts MA2024-02, no. 46 (2024): 3246. https://doi.org/10.1149/ma2024-02463246mtgabs.

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Hydrogen is gaining acceptance as a viable energy vector for renewable energy and as a green molecule for chemical synthesis, but its production in a sustainable, efficient, and affordable manner requires further optimization. Proton exchange membrane electrolyzers (PEMELs) can be efficient for hydrogen production. Within the PEMEL stack, the repeating unit cell consists of a bipolar plate, two porous transport layers (PTLs), two catalyst layers, and one proton exchange membrane (PEM). The oxygen evolution reaction at the anode creates a corrosive environment, therefore, titanium is used as th

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Wang, Yisheng, Ran Zhou, Mengyang Wang, Xiaojun Li, and Lequn Zhu. "Study on the Sustainable Development Strategy of Container Rail-Water Intermodal Transport in Chinese Ports." E3S Web of Conferences 512 (2024): 03024. http://dx.doi.org/10.1051/e3sconf/202451203024.

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The sustainable development of container rail-water intermodal transport in China faces a series of deep-seated constraints. In this paper, we quantitatively summarize the development status of container rail-water intermodal transportation in China’s ports. Next, the typical problems faced by the sustainable development of rail-water intermodal transport are analyzed from the bottom constraints and direct constraints. Finally, this paper proposes strategic ideas to promote sustainable development of rail-water intermodal transport, taking into account network layout, technical equipment, data

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Liu, Xingyu, Yan Liang, Yongtao Peng, Tingting Meng, Liling Xu, and Pengcheng Dong. "Sensitivity of the Transport of Plastic Nanoparticles to Typical Phosphates Associated with Ionic Strength and Solution pH." International Journal of Molecular Sciences 23, no. 17 (2022): 9860. http://dx.doi.org/10.3390/ijms23179860.

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The influence of phosphates on the transport of plastic particles in porous media is environmentally relevant due to their ubiquitous coexistence in the subsurface environment. This study investigated the transport of plastic nanoparticles (PNPs) via column experiments, paired with Derjaguin–Landau–Verwey–Overbeek calculations and numerical simulations. The trends of PNP transport vary with increasing concentrations of NaH2PO4 and Na2HPO4 due to the coupled effects of increased electrostatic repulsion, the competition for retention sites, and the compression of the double layer. Higher pH tend

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Strzelewicz, Anna, Michał Cieśla, Bartłomiej Dybiec, and Monika Krasowska. "Modeling Diffusion of Elongated Particles Through a Narrowing Channel." Entropy 27, no. 3 (2025): 293. https://doi.org/10.3390/e27030293.

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Simulations of the Brownian dynamics of diffusing particles in complex environments provide important information about the characteristics of the medium and the properties of biological processes. Notable examples include the diffusion of ions and macromolecular solutes through channels of varying cross-section, such as pores in biological membranes, living tissues, zeolites, carbon nanotubes, and synthetic porous materials. In these systems, the observed diffusion can exhibit anomalous behavior characterized by a nonlinear increase in the mean squared displacement. In this article, we presen

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Erlygina, Elena G., and Ekaterina M. Shabanova. "Problems and prospects of water transport development in modern economic conditions." Russian Journal of Water Transport, no. 81 (December 19, 2024): 108–16. https://doi.org/10.37890/jwt.vi81.537.

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The article analyzes the problems and prospects of water transport development in modern economic conditions. Water transport plays an important role in solving economic problems, but its use is associated with a number of problems, such as the condition of waterways, hydraulic structures, the technical condition of the fleet and the financial and economic situation of shipping companies and ports. The problem of the negative impact of ships on the environment remains relevant. Nevertheless, water transport has significant potential for development, which can be realized through innovative pro

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Ryu, Han-Sun, Jinah Moon, Heejung Kim, and Jin-Yong Lee. "Modeling and Parametric Simulation of Microplastic Transport in Groundwater Environments." Applied Sciences 11, no. 16 (2021): 7189. http://dx.doi.org/10.3390/app11167189.

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Efforts to reduce the toxic effects of microplastics (MPs) on the environment have increased globally in recent years. However, the existing models used for the simulation of contaminant transport in groundwater are meant for dissolved substances, which is not suitable for studying MPs. Therefore, in this study, the transport of MPs in a saturated porous medium was modeled by establishing governing equations. Simulations were performed using the finite element method to examine the effects of the parameters of the governing equations on the transport of MPs. The results suggest that it is nece

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He, W., C. Beyer, J. H. Fleckenstein, et al. "A parallelization scheme to simulate reactive transport in the subsurface environment with OGS#IPhreeqc." Geoscientific Model Development Discussions 8, no. 3 (2015): 2369–402. http://dx.doi.org/10.5194/gmdd-8-2369-2015.

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Abstract. This technical paper presents an efficient and performance-oriented method to model reactive mass transport processes in environmental and geotechnical subsurface systems. The open source scientific software packages OpenGeoSys and IPhreeqc have been coupled, to combine their individual strengths and features to simulate thermo-hydro-mechanical-chemical coupled processes in porous and fractured media with simultaneous consideration of aqueous geochemical reactions. Furthermore, a flexible parallelization scheme using MPI (Message Passing Interface) grouping techniques has been implem

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Borisov, Mikhail. "TRANSPORT OF INDIA." Eastern Analytics, no. 1 (2021): 33–50. http://dx.doi.org/10.31696/2227-5568-2021-01-033-050.

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Transport of India is developing in the context of the country's rapid economic growth in the last decades. Progress in the transportation system is accompanied with structural changes, the most important of which is the steep increase in the share of road transport in freight and passenger transportation due to the decline in the share of rail transport. The predominance of road transport in the world's fourth economy with an enormous population has given rise to a threat of transport collapse and problems connected with the environment and occupation of land by new road construction. That's

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Stopka, Ondrej, and Rudolf Kampf. "Determining the most suitable layout of space for the loading units’ handling in the maritime port." Transport 33, no. 1 (2016): 280–90. http://dx.doi.org/10.3846/16484142.2016.1174882.

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The main advantages of maritime transport are (1) lowest costs, (2) large-scale carriage capacity, (3) carriage of different goods over long distances and (4) the most acceptable mode of transport in the context of the environment. This mode of transport is considered more profitable and more cost-effective than all other transport modes. Modern maritime ports have become the essential nodal components of freight transport networks. This paper is focused on determining the most suitable layout of space for the loading units warehousing and handling in the maritime port using the particular met

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Kvitsinsky, V. A., S. I. Kryvosheev, and S. V. Marushchak. "THE USE OF A TREE-LIKE POROUS STRUCTURE MODEL FOR ESTIMATING OF THE IGNITION TEMPERATURE OF A CARBON RESIDUE PARTICLE." Journal of Coal Chemistry 6 (2020): 17–27. http://dx.doi.org/10.31081/1681-309x-2020-0-6-17-27.

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A model of a tree-like porous structure has been used to calculate the thermal effects of chemical reactions of the molecular oxygen and carbon dioxide with an accessible particle surface of a carbon residue and to estimate heat balance with a gas environment. The effective reaction rate constant of the oxygen and carbon dioxide for the contour surface of the particle has been presented as the averaged value of the effective constants for the components of the surface of the carbon residue partricle: the inlets in the micro-, meso-, macropores; the density of outer surface; the areas of minera

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Boyu, Liu, Olga Efimova, Maksim Vasiev, and Wang Qian. "Belt and Road Initiative for environmental economic development: A Case Study of cooperation between China and Russia in transport sector." BRICS Journal of Economics 3, no. 4 (2022): 299–316. http://dx.doi.org/10.3897/brics-econ.3.e91318.

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The impact of climate change and COVID-19 pandemic on the global economy is indeed powerful; this determines particular relevance of low-carbon economy and environment-oriented development, drawing considerable public attention to these issues. China and Russia as the two largest neighboring countries have a centuries-old history of relationship and fruitful cooperation. Transport industry plays an essential role in promoting trade and economic development between the two countries and its expansion may also contribute to achieving sustainable development and carbon neutrality goals. This pape

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Zaostrovskikh, Elena. "Global Trends in the Development of Maritime Transport in 2022." Regionalistica 10, no. 6 (2023): 175–86. http://dx.doi.org/10.14530/reg.2023.6.175.

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The author’s attention is focused on the analysis of global trends in the development of shipbuilding, maritime transport, shipping, and seaports in 2022. It is indicated that the global trend continues to be set by the requirements of the International Maritime Organization aimed at reducing the harmful impact of shipping on the environment. Horizontal consolidation of transport companies allows shipowners to adapt to changing market conditions, and in shipbuilding, it enables shipbuilding groups to develop development strategies considering new environmental standards. There is a change in t

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Adler, Pierre. "Transport in Porous Media." Journal of Chemical Technology & Biotechnology 65, no. 4 (1996): 386–87. http://dx.doi.org/10.1002/(sici)1097-4660(199604)65:4<386::aid-jctb420>3.0.co;2-a.

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Al-Fatlawi, Hayder Ali, and Hassan Jassim Motlak. "Smart ports: towards a high performance, increased productivity, and a better environment." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 2 (2023): 1472. http://dx.doi.org/10.11591/ijece.v13i2.pp1472-1482.

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<span lang="EN-US">Ports are currently competing fiercely for capital and global investments in order to improve revenues, mostly by improving performance and lowering labor costs. Smart ports are a fantastic approach to realize these elements since they integrate information and communication technologies within smart applications, ultimately contributing to port management improvement. This leads to greater performance and lower operational expenses. As a result, several ports in Europe, Asia, Australia, and North America have gone smart. However, there are a lot of critical factors to

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Hayder, Ali Al-Fatlawi, and Jassim Motlak Hassan. "Smart ports: towards a high performance, increased productivity, and a better environment." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 2 (2023): 1472–82. https://doi.org/10.11591/ijece.v13i2.pp1472-1482.

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Ports are currently competing fiercely for capital and global investments in order to improve revenues, mostly by improving performance and lowering labor costs. Smart ports are a fantastic approach to realize these elements since they integrate information and communication technologies within smart applications, ultimately contributing to port management improvement. This leads to greater performance and lower operational expenses. As a result, several ports in Europe, Asia, Australia, and North America have gone smart. However, there are a lot of critical factors to consider when automating

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Christowa, Czesława. "River transport in transport policy in Poland and European Union." WUT Journal of Transportation Engineering 120 (March 1, 2018): 59–73. http://dx.doi.org/10.5604/01.3001.0014.4726.

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Transport policy is one of the most important factors affecting transport systems in individual countries and in Europe as a whole. This article analyzes and evaluates the impact of the transport policy of Poland and that of the European Union on the development of river transport in Poland. The study focuses on the most important political and strategic documents in force in the European Union and in the Republic of Poland in 2001-2017, containing transport system concepts, including plans of long-term construction and modernization of transport infrastructure that partly involve river transp

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Wei, Zhanxi, Yidan Zhu, Yuanyuan Wang, et al. "Influence of Soil Colloids on Ni Adsorption and Transport in the Saturated Porous Media: Effects of pH, Ionic Strength, and Humic Acid." Applied Sciences 12, no. 13 (2022): 6591. http://dx.doi.org/10.3390/app12136591.

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Natural colloids are widely distributed in soil and groundwater. Due to their specific characteristics, colloids can actively involve various transport contaminants, resulting in a complicated fate and the transport of heavy metals to the environment. This study investigated the effects of soil colloids on the adsorption and transport of Ni2+ in saturated porous media under different conditions, including pH, ion strength (IS), and humic acid (HA), because these indexes are non-negligible in the fates of various organic or inorganic matters in the subsurface environment. The results indicate t

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Risdanareni, Puput, Ditya Hafidz Rosyidi, Nindyawati Nindyawati, et al. "Transport Properties of Lightweight Concrete Incorporated with Expanded Clay Aggregate in Marine Environment." E3S Web of Conferences 445 (2023): 01012. http://dx.doi.org/10.1051/e3sconf/202344501012.

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Employing porous material such as expanded clay lightweight aggregate (EC LWA) as an internal curing agent in the production of mass concrete proof to mitigate early age cracks in resulting concrete. However, introducing EC LWA could increase the porosity of concrete, leading to concrete degradation due to water penetration. Thus, this research aims to investigate the suitable natural aggregate replacement rate with EC LWA in the production of concrete with acceptable mechanical and transport properties. Three replacement rates of 0, 50, and 100% were applied. The water-per-cement ratio of 0.6

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V. Naydenova, M., N. N. Bontsevich, and V. K. Sidelnikova. "Modern Concept of the Financial Strategy of Transport Industry." International Journal of Engineering & Technology 7, no. 4.3 (2018): 617. http://dx.doi.org/10.14419/ijet.v7i4.3.19969.

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The paper states theoretical and methodological issues of financial strategy’s formation of the enterprise under modern conditions of economic development. The key problems of the river ports development are determined. Among them - shortage of service equipment, logistic disparity of transport river networks, obsolete vessels. Ways of improving the financial condition of water transport and ports in Russia are suggested.The article specifies that the strategic management of the company's finances can rule over cash flows, capital and investments effectively. The starting point for formation o

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Holben, William E., and Peggy H. Ostrom. "Monitoring Bacterial Transport by Stable Isotope Enrichment of Cells." Applied and Environmental Microbiology 66, no. 11 (2000): 4935–39. http://dx.doi.org/10.1128/aem.66.11.4935-4939.2000.

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ABSTRACT Understanding the transport and behavior of bacteria in the environment has broad implications in diverse areas, ranging from agriculture to groundwater quality, risk assessment, and bioremediation. The ability to reliably track and enumerate specific bacterial populations in the context of native communities and environments is key to developing this understanding. We report a novel bacterial tracking approach, based on altering the stable carbon isotope value (δ13C) of bacterial cells, which provides specific and sensitive detection and quantification of those cells in environmental

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King, E. L., K. Tuncay, P. Ortoleva, and C. Meile. "In Silico Geobacter sulfurreducens Metabolism and Its Representation in Reactive Transport Models." Applied and Environmental Microbiology 75, no. 1 (2008): 83–92. http://dx.doi.org/10.1128/aem.01799-08.

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ABSTRACT Microbial activity governs elemental cycling and the transformation of many anthropogenic substances in aqueous environments. Through the development of a dynamic cell model of the well-characterized, versatile, and abundant Geobacter sulfurreducens, we showed that a kinetic representation of key components of cell metabolism matched microbial growth dynamics observed in chemostat experiments under various environmental conditions and led to results similar to those from a comprehensive flux balance model. Coupling the kinetic cell model to its environment by expressing substrate upta

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Tucker, Mike C., Grace Y. Lau, Ramchandra Gawas, Jason Keonhag Lee, and Xiong Peng. "Porous Transport Layers and Microporous Layers Prepared By Tapecasting for PEM Water Electrolyzers." ECS Meeting Abstracts MA2024-02, no. 45 (2024): 3146. https://doi.org/10.1149/ma2024-02453146mtgabs.

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Proton exchange membrane water electrolyzers (PEMWE) are promising means to produce hydrogen in absence of carbon emissions when powered by renewable energy sources. The PEMWE converts reactant liquid water and electricity into hydrogen and oxygen gases. A porous transport layer (PTL) is placed between the PEMWE anode where oxygen is evolved and the flowfield where oxygen is removed from the cell. PTLs are typically made of titanium due to its stability against the highly corrosive environment in the anode compartment. The PTL is a key component and must provide electrical contact as well as r

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Shtyka, Olga, Łukasz Przybysz, and Jerzy Sęk. "Transport of emulsions in granular porous media driven by capillary force." Acta Innovations, no. 26 (January 1, 2018): 38–44. http://dx.doi.org/10.32933/actainnovations.26.4.

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The transport of liquids driven by capillary suction-pressure and balanced by both viscous drag force and gravity acceleration is known as spontaneous imbibition. The prediction of spontaneous imbibition in porous media is of importance due to its relevance as a fundamental phenomenon in numerous industrial technologies as well as in nature. A vast majority of the experimental results and mathematical models concerning the imbibition process of single-phase liquids are considered and analyzed in the literature. The present research focuses on two-phase liquids transport in porous medium driven

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Giampaolo, Valeria, Daniela Calabrese, and Enzo Rizzo. "Transport Processes in Porous Media by Self-Potential Method." Applied and Environmental Soil Science 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/3951486.

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A controlled diffusion/infiltration column experimental activity was carried out with the aim of monitoring the leakage of a salty water plume by time-lapse self-potential (SP) measurements. In particular, three tracer tests with different NaCl concentrations (6.00, 1.00, and 0.25 g L−1) were performed and all the measured SP signals showed a sharp reduction corresponding to the arrival of saline front with negative electrical potential values (−78.99±3.24 mV, −54.52±2.28 mV, and −24.12±1.21 mV) which decrease with increasing volume of tracer introduced into the column. Then, measured self-pot

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Zheng, Junhao, Mei Jiang, Qingzhu Li, and Weichun Yang. "The Formation and Stability of HA–Fe/Mn Colloids in Saturated Porous Media." Environments 11, no. 7 (2024): 136. http://dx.doi.org/10.3390/environments11070136.

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Fe/Mn (hydr)oxides are metallic compounds that exhibit significant redox activity in environmental media and play a pivotal role in geochemical processes, thereby influencing the fate of metals in porous media. The morphology of Fe/Mn (hydr)oxides in natural environments and their interactions with trace metals are significantly influenced by the presence of natural organic matter (NOM). However, there is limited understanding regarding the formation, transport, and stability of Fe/Mn (hydr)oxides in the environment. The present study employed humic acid (HA) as a representative NOM material t

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Oyen, Toritseju, and Duke Ophori. "Regional Groundwater Flow and Advective Contaminant Transport Modeling in a Typical Hydrogeological Environment of Northern New Jersey." Hydrology 12, no. 7 (2025): 167. https://doi.org/10.3390/hydrology12070167.

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This study develops a numerical model to simulate groundwater flow and contaminant transport in a “typical hydrogeological environment” of northern New Jersey, addressing freshwater decline. Focusing on the Lower Passaic water management area (WMA), we model chloride transport in a fractured-rock aquifer, where fracture networks control hydraulic conductivity and porosity. The urbanized setting—encompassing Montclair State University (MSU) and municipal wells—features heterogeneous groundwater systems and critical water resources, providing an ideal case study for worst-case contaminant transp

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Vukić, Luka, and Iven Kraemer. "Dependence of Transport and External Cost Variables on Transportation Route Length." Journal of Marine Science and Engineering 9, no. 11 (2021): 1270. http://dx.doi.org/10.3390/jmse9111270.

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External transport costs are becoming an increasingly important factor in the choice of transport routes. According to sustainability principles, the first choice criterion should be the route with the least harmful impact on the environment and health. Sometimes the criteria for transportation costs are in conflict with environmental ones. There is a need to optimize them to maintain the trend of sustainable transport development. Cost and external cost behaviors of intermodal maritime–rail container transport from China over different European ports to central European destinations were exam

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Ryabchuk, V., and G. Kalinina. "Competitiveness and Strategic Positioning of Seaports." Economic Herald of the Donbas, no. 1 (63) (2021): 90–94. http://dx.doi.org/10.12958/1817-3772-2021-1(63)-90-94.

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Thanks to the development of world trade, more than two-thirds of the world's total cargo depends on maritime transport. Maritime transport and ports play an important role in the sustainable development of the global economy. Currently, as international transshipment ports, ports are evolving from conventional retail terminals to containerized distribution logistics centers (hubs). Undoubtedly, the shipping and port industries are directly related to the global economy. The ports are the main carriers and information exchangers with the outer regions. In addition, the port economy has become

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Awad-Núñez, Samir, Nicoletta González-Cancelas, Francisco Soler-Flores, and Alberto Camarero-Orive. "HOW SHOULD THE SUSTAINABILITY OF THE LOCATION OF DRY PORTS BE MEASURED? A PROPOSED METHODOLOGY USING BAYESIAN NETWORKS AND MULTI-CRITERIA DECISION ANALYSIS." TRANSPORT 30, no. 3 (2015): 312–19. http://dx.doi.org/10.3846/16484142.2015.1081618.

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The global economic structure, with its decentralized production and the consequent increase in freight traffic all over the world, creates considerable problems and challenges for the freight transport sector. This situation has led shipping to become the most suitable and cheapest way to transport goods. Thus, ports are configured as nodes with critical importance in the logistics supply chain as a link between two transport systems, sea and land. Increase in activity at seaports is producing three undesirable effects: increasing road congestion, lack of open space in port installations and

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