bluuebunny/crossref_metadata_2025_split huggingface dataset:
Shoreline Carrying Capacity Assessment Based on Satellite Remote Sensing Image: A Case Study of the Nanjing Reach of the Yangtze River
Authors: Chen Huai , Wang Shan , Huang Suning , Zhang Lei , Wang Nairu , Zhu Lijun 
Published: February 2023

AbstractResearch on shoreline carrying capacity is of great practical significance to promote the sustainable development of shoreline. Taking into account five aspects of shoreline health, resource supply, environmental pollution, ecological service and social service, the evaluation index system of shoreline carrying capacity was systematically established. Taking the Nanjing reach of the Yangtze River as a typical case, the variation trend of shoreline carrying capacity in recent 40 years was analyzed. The Landsat satellite remote sensing images from 1984 to 2020 were collected. The classification regression tree (CART) algorithm was used to classify the land use types in the remote sensing images, and then evaluation indexes of shoreline carrying capacity were calculated. The results show that the shoreline carrying capacity of the Nanjing reach was basically stable from 1984 to 2003. With the large-scale development and utilization of the shoreline since 2003, the carrying capacity of the Nanjing reach gradually decreased and approached the warning line. Due to the implementation of restrictive measures such as “action to clear the four chaos” and “the operation of responsibility system on river/lake leaders” by Chinese government after 2018, the carrying capacity of the Nanjing reach has rebounded rapidly. With the help of Mann-Kendall (MK) mutation analysis method, the mutation point of the time series of the shoreline carrying capacity of the Nanjing reach was found to occur in 1991, 2012 and 2018. The research results can help to discover unsustainably social and economic activities, put forward the productivity layout adjustment, and guide corresponding management measures in the reach.
Simulation and Hazard Map of Flooding Caused by the Break of a Concrete Gravitational Dam
Authors: Leng Qing , Zhang Ming , Zhao Gensheng , Mao Senhao , Jiang Ang 
Published: February 2023

AbstractThe simulation of Concrete Gravitational Dam burst floods is an important research content in the field of disaster prevention and mitigation in water conservancy projects. Due to the extreme rainfall, earthquake, structure failure and etc., the concrete gravitational dam usually breaks in a short time period. The dam break flood will give an extreme risk to the downstream communities. Taking the flood simulation of the Kaliwa Dam in the Philippines as an example, based on the downstream channel of the dam body and the measured terrain on both sides, a numerical simulation model of one-dimensional and two-dimensional coupled flood evolution is constructed, and the numerical simulation of the flood evolution process of the dam collapse is carried out, counts the inundation range, water depth, flow velocity, flood arrival time and other disaster causing factors in the downstream inundation area, and draws the flood hazard map of both banks downstream. The simulation results show that the KALIWA burst accident occurred, the total inundation area downstream is over 38 km2 in the downstream of the Kaliwa Dam. The dam break flood peak takes 1.5 h to reach the downstream estuary, which is the shortest time. The General Nakar City and Infanta City are inundated completely with the depth of 1.0 m to 2.0 m. The terrain near the upper reaches of the lower estuary is open and flat, the downstream area will be affected seriously by the flood. It is proposed to build a flood warning system to give the people downstream of Kaliwa Dam. The results of the research will provide a scientific basis for dam-break flood risk analysis, disaster assessment.
Study on Air Bubble Plume in Open Channel with CFD-PBM Coupling Model
Authors: Xu Jinchao , Wang Xiaodong , Zhu Long , Zhou Donghui , Zhao Jun 
Published: February 2023

AbstractAir bubble plume flow has been applied widely in the dredging, ice breaking, and pollution control at navigation projects. But the interaction regimes among bubbles or between bubbles and water are not quite clear. Especially in open channels, the bubble plume flow are significantly affected by the separation phenomenon which is caused by the cross flow velocity. According to the existing research, the interaction force of gas-liquid and the distribution of bubble size are the key parameters to simulate the hydrodynamic characteristics of bubble plume flow. In order to explore the mechanism of air bubbles entrained plumes in open channels, an Eulerian-Eulerian approach for air-water flows numerical model was introduced, and the population balance model (PBM) was included to describe the distribution of bubble size. The cross flow velocity of open channels has been discussed in the proposed numerical model. It shows that the separation of bubble plume is strongly influenced by the cross flow velocity. The influence of these parameters on the movement characteristics of air bubbles is studied. The results indicate that the cross flow velocity has great impact on bubble plume as well as the lifting effectiveness of pneumatic sluicing. This research provides references for bubble plume in engineering applications.
A Roadmap Towards Eliminating Greenhouse Gas Emissions and Air Pollutants of the Inland Navigation Sector by 2050 – How to Address the Related Economic, Financial, Technical and Regulatory Obstacles?
Authors: Wisselmann Raphael , Roux Laure , Boyer Benjamin 
Published: February 2023

AbstractThe Ministers responsible for transport have tasked the Central Commission for the Navigation of the Rhine to develop a roadmap for reducing emissions in inland navigation. The ambition is to determine the transition pathways for developing the fleet and achieving “zero emission” inland navigation by 2050. After recalling the general context of climate change and its application to the inland navigation sector, the roadmap explains certain definitions and assumptions. It then identifies different technologies enabling alternatives to gasoil which could play a role in the energy transition of the inland navigation sector, in the form of two pathways for the fleet’s development. Economic challenges are addressed, taking into account the huge financial gap to be bridged. It ends with a list of actions needed to achieve these objectives. Thus, this roadmap is intended as a public policy tool for European inland navigation.
Free Zones as Booster of Growth of Ports
Authors: Leto Rodrigo Nicolás Benítez , Jose Savarese Ariel 
Published: February 2023

AbstractFree zones are defined as: “a field where the goods are not subject to the usual control from the customs service and its introduction and extraction are just only taxed with service tax which can be created and there is no economic prohibition on it”.In Argentina, Law N° 24.331 says that the free zones can be of storage, commercial, services or industrial. The tax benefits that this legal regime provides are that the goods in this area are not subject to export or import taxes, created or to be created. Despite the fact that the free zones are a key tool in developing economically deprived areas in a country or a region, those can not do it by themselves. Free zones must be integrated to the logistic and industrial system of the region, making, in this way, the necessary synergy in order to succeed.Port of Barranqueras which is located on the right bank of the Paraguay - Paraná Waterway in the province of Chaco, Argentina, at around 1,000 km North of Buenos Aires city. Historically, this is a marginal area of Argentina in terms of investment and development, with large infrastructure deficiencies. However, the Port of Barranqueras has unique advantages like its location on the geographic center of MERCOSUR with good road (RN11 & RN14) and railway (Belgrano Cargas) connections; unique possibilities for sustainable growth as it is not constrained by large urban areas and for being a multimodal port with facilities for container and general cargo handling as well as grain storage. Those characteristics make it ideal to set up a free zone.The objective of this paper is to analyze how a free zone integrated to the Port of Barranqueras will enhance it until converting it into an industrial and logistic center, making more competitive all the export industries in the zone. This analysis includes a map that will help others in similar conditions.
Grain Flow Through the Northern Arch of Brazil
Authors: Higa Ana Paula Harumi , Neto José Gonçalves Moreira , Trajano Rodrigo Guimarães , De Castro Herbert Koehne 
Published: February 2023

AbstractBrazil is the world’s largest producer of soybean followed by the United States. These two countries accounting for roughly 68.7% of world production. The largest soybean producing region in Brazil is the Midwest, followed by the southern region. Between 2010 and 2020, the exported volume of soybean rose from 29.1 million tons to 83 million tons, respectively, representing 185% rise. The soybean exports are drained by nine logistic corridors and recently it calls attention the expansion of the logistics corridors of the Northern Arch of Brazil. It is expected that Ferrogrão, a railway project connecting the 933 km from Sinop (Mato Grosso state) to Itaituba (Pará state), will consolidate the Tapajós River Corridor as one of the most important corridors to the grain flows and it will help to reduce freight prices. The objective of this paper is to present the recent change in the grain exports flows through the Northern Arch of Brazil and discuss the potential impact of Ferrogrão rail in the Brazilian logistics of grain exports. For it, at the first item will be presented the importance of Brazilian soybean production in the world market and the main producing region in Brazil; in the second item will be presented the main logistic corridors for grain exports; in the third item will be presented the Northern Arch logistic corridors; in the fourth item will be presented the Ferrogrão railway project and in the fifth item will be presented the final considerations.
Regulation for the Decarbonisation of IWT in Europe
Authors: Pauli Gernot , Boyer Benjamin 
Published: February 2023

AbstractTo ensure its future, the response of IWT to climate change must be twofold: it must adapt to the changing climate and mitigate its carbon footprint. The former will make IWT resilient against adverse effects of climate change, the latter will bring IWT in line with the Paris Agreement and decarbonise IWT. PIANC, in its 2019 Declaration on Climate Change, stated that “… PIANC and its members will strive to develop approaches to decarbonise the operation of port and navigation infrastructure (i.e. move to net zero emissions), whilst at the same time enabling the reduction of greenhouse gas (GHG) emissions from vessels by providing the necessary facilities, infrastructure and, where appropriate, incentives…” The European Union (EU) and the Central Commission for the Navigation of the Rhine (CCNR) more explicitly aim at zero-emission vessels and eliminating GHG emissions from inland navigation vessels by 2050. For doing so, EU and CCNR will go beyond the measures foreseen in PIANC’s declaration and will employ regulations and standards as well, since regulations and standards are important policy instruments to facilitate the transition towards carbon neutral IWT. This paper will present respective regulations and standards which are already in place, currently under development or whose development is foreseen to effectively support the transition towards a zero-emission IWT fleet in Europe. Vessel technical requirements are at the core of the contribution, but requirements concerning vessel operation and crew training are also considered. The paper analysis the basic content of the regulations and standards and provides general recommendations for the way forward.
Strategies for High Quality Development of Smart Inland Shipping in Zhejiang Province Based on “Four-Port Linkage”
Authors: Zhou Jianan , Liu Wanfeng , Wu Jianwei 
Published: February 2023

AbstractCurrently Zhejiang ports have gradually changed from large-scale expansion to high-quality upgrading development, and gradually pay attention to the integrated development with railway, aviation, highway and other transportation modes. In 2019, Zhejiang Province proposed a new development pattern of “Four-port Linkage” with seaports (including inland ports) as the leader, dry ports as the basis, airports as the characteristics and infoport as the link, in which improving the basic service system of sea-river intermodal transport and optimizing the inland waterway network for sea-river intermodal transport are important contents, and cooperate with the requirements of the national outline for the development of inland shipping. With the navigation of a series of high-grade channels such as Hangpingshen Canal, Qiantang River, Hangzhou-Ningbo Canal and Oujiang River, the goal of inland shipping revival of “Upgrading north, unblocking south, opening east and revitalizing west” in Zhejiang Province has been basically realized, and all 11 cities in Zhejiang province are connected to the river and the sea. With the emergence of modern information technologies such as big data, IoT and 5G and the rapid development of multimodal transport, the development of smart inland shipping in Zhejiang Province greets new opportunities. This paper discusses the strategy of “Four-port Linkage” to help the high-quality development of Zhejiang smart inland shipping, from the perspectives of developing a comprehensive big data platform for inland shipping, developing a sea-river intermodal transport service information system, promoting the linkage of inland shipping information systems across provinces and cities, and suggesting smart inland shipping typical projects.
The Linear Regression Model for Estimate the Price in Crossing Transport Services: Methodology and Application
Authors: do Nascimento Isaac Monteiro , de Queiroz Eduardo Pessoa 
Published: February 2023

AbstractThe Brazilian’s urbanization process, allied to the expansion of the economic frontier, which have occurred concomitantly in the last five decades, are responsible for the increase in the number urban settlements and for the increase in the country’s arable area. However, in many cases, transport infrastructure did not keep pace with the process of territorial occupation. In this sense, many highways were provided without the proper instruments for transposing watercourses and many crossing shipping companies emerged. Nowadays, there are ninety federal crossing lines in operation. One of the main issues inherent to these services is the prices charged and the respective affordability. Considering this scenario, the present work selected crossing sample to estimate prices using the Linear Regression Model. The selected model was applied to forecast crossing price in 8 (eight) crossing lines. As result, the price charged in all of them were out of the prediction interval model, indicating that the Regulatory Agency should investigate the reason why they are dissonant to market practices.
A Study on the Han-Hai Fleet Slot Mutual Chartering Model of Han-Shen Line Based on Linear Alliance
Authors: Zhang Yi , Peng Cheng , Li Yike , Li Jinling , Dai Jinshan 
Published: February 2023

AbstractTo raise the income of the container liner company and improve the shipping space utilization rate, an integer programming model is constructed in view of the seaworthiness characteristics of each ship route along Hanshen line of the Yangtze river, OD container transport demand, and the container rental business under the alliance. Aiming to maximize the gross profit of the Hanhai liner shipping fleet series, the container was optimized route network along the Yangtze river waterway and determined how to choose the port call for each route and the types of vessels. While optimizing, the model is established according to the characteristics of liner multi-port attachment and cargo nonstop transportation routes, comprehensively considering various factors including freight demand, maximum cargo capacity of a single ship, minimum voyage frequency, and freight rate level. The numerical analysis of the Hanhai fleet turns out that the model can perfectly simulate the situation in reality and optimize the existing routes and boost the profits of liner transportation companies.
Research on Key Parameters Selection of Lock Capacity Simulation
Authors: Liu Yingfei , Cao Fengshuai 
Published: February 2023

AbstractThere are many factors affecting the lock capacity, including ship size and ship type combination, navigation speed of ships entering and leaving the lock, ship spacing, lock filling and discharging time, gate opening and closing time, dimension of lock chamber, navigation days, ship loading rate, traffic volume imbalance, daily working time, etc. In the simulation model, the ship's random arrival at the lock and the distribution proportion of ship type can be simulated, so as to realize the random process of ship passing through the lock and simulate the ship passing scheduling rules. Compared with the methods of manual calculating the lock capacity according to the code, the simulation method is more objective and scientific. In the simulation analysis of lock capacity, the two ship operation parameters of ship entering and exit speed and start interval have strong randomness. This paper studies the rationality of the parameters by constructing the simulation model of lock capacity system. The simulation test shows that with the increase of randomness of ship entering and exit speed, the passing capacity of ship lock decreases gradually, but this decrease can be ignored. The randomness of the start interval has no obvious effect on the lock capacity. Therefore, it is reasonable to take the average value of the model parameters when using the system simulation method to determine the navigation capacity of the lock, and considering all factors comprehensively, it is recommended to take the average value of the parameters in the modeling.
Hydraulic Research on Filling and Emptying System of Water-Saving Ship Lock for Navigation-Power Junction in Mountainous River
Authors: Liu Benqin , Yang Jin , Huang Yue , Wang Lei 
Published: February 2023

AbstractUsually the ship lock has the characteristics of high water head and large variation of navigable water level in mountainous area. It is suitable to construct the water-saving ship lock, which can not only save the water consumption but also reduce the working head of each stage. Therefore, it is also beneficial to solve the hydraulic problems of high head ship lock. Taking Baise ship lock as an example of ship locks for navigation-power junctions in mountainous river, we studied the water saving layout scheme and suggested that a high water saving pool and a low one should be set on both sides of the lock chamber. And each pool adopts a new type of trapezoidal transverse section in order to make full use of the topographic conditions of the project and reduce the excavation volume. The water level classification of water-saving ship lock is calculated and analyzed. The elevations of the water saving pools are determined. The layout of the filling and emptying system of the water-saving ship lock is put forward. The hydraulic characteristic indexes, the pressures of the culverts near the valves and the ship berthing conditions in lock chamber under different operating conditions of the water-saving ship lock are obtained through physical model research. Furthermore, the opening and closing modes of the valves are recommended. The results show that the water saving scheme of Baise ship lock is reasonable and feasible in hydraulics.
The Review and Prospect of the Development of Guangdong-Hong Kong-Macao Greater Bay Area Port Cluster and Its River-Sea Intermodal Transport System
Authors: Ding Wentao , Chen Zhengyong , Wang Rui , Xue Tianhan , Yao Haiyuan 
Published: February 2023

AbstractGuangdong-Hong Kong-Macao Greater Bay Area is one of the most developed regions in China and a world-class manufacturing base. China has built a world-class port cluster with Hong Kong Port, Shenzhen Port and Guangzhou Port as the core members and a river-sea intermodal transport system based on the Pearl River Delta high-grade waterway network which features delivery of containers, coal, and grain. Promoting the high-quality development of the Guangdong-Hong Kong-Macao Greater Bay Area, achieving carbon peaking by 2030, and achieving carbon neutrality by 2060 are major strategies for China’s future development. To realize these goals, China will further promote the construction and development of the Guangdong-Hong Kong-Macao Greater Bay Area port cluster, and will also pay more attention to environmental advantages such as high inland water transport capacity, low energy consumption and low pollution. Meanwhile, the government will make further reforms in planning, construction and institutional mechanism to accelerate the improvement of the river-sea intermodal transport system around the core ports in the Bay Area. This paper systematically reviews the layout, construction, and development of ports in the Guangdong-Hong Kong-Macao Greater Bay Area, the Pearl River Delta high-grade waterway network, and the river-sea intermodal transport system around seaports since the 1980s. Based on the “Outline of the Development Plan of Guangdong-Hong Kong-Macao Greater Bay Area”, this paper foresees the future development trend of the port cluster and its river-sea intermodal transport system from the perspectives of inter-port relationship, high-grade waterway network and river-sea intermodal transport hub.
Research on Theoretical Framework and Implementation Path of Green Maintenance of Inland Waterway
Authors: Han Zhaoxing , Zheng Chaohui , Jiang Wenxi , Cheng Jinxiang , Zhang Liguo 
Published: February 2023

AbstractInland waterway maintenance could guarantee channel dimension and maintain navigation conditions. With the continuous increase of channel mileage, inland waterway maintenance gradually became more frequent and scale-up, as well. The maintenance activities would inevitably cause adverse environment impacts on waters, and disturb the ecosystem. Therefore, it was necessary to implement the green maintenance to reduce the negative impacts in the maintenance process. However, the research on green maintenance of inland waterway was not systematic and impeccable. This paper proposed a solution for the problem above. Firstly identified the environmental impacts of maintenance based on the analysis of maintenance process. Secondly the notion and principles of green maintenance are put forward, according to the concept of green transportation and green channel. Thirdly, the study constructed the technical framework of green maintenance and summarized the major measures for green maintenance. An last, implementation path of green maintenance was addressed including standard-setting, establishing system management, technology research and development, etc.
The Design of Safety Monitoring System for Navigation Hubs Built in Plain Area
Authors: Ding Yutang , Lu Yangyang , Xiong Guowen 
Published: February 2023

AbstractNavigation hubs built in plain area usually have large space span and compact structure layout. Safety monitoring performance, especially the surface deformation monitoring performance, is sensitive to the monitoring distance and structure features. Thus the monitoring system should be elaborately designed to meet the requirement of accuracy and robustness. Conventional approaches for surface deformation monitoring are time-consuming and suffering from low accuracy. In this paper, the designing strategies and monitoring techniques for surface deformation monitoring in Jiepai Navigation Hub, a typical navigation-power hub built in plain area, are demonstrated. The monitoring result shows that the designed monitoring system has good performance both in accuracy and robustness. The designing strategy can serve as a reference for other similar projects built in plain area.