Hydrodynamic Analysis of Inland Self-propelled Vessel for Cargo Transportation in the Magdalena River

The article presents the construction of logistics chains for the delivery of goods in containers. Container transport and technological systems are cost – effective, as modern vessels and transshipment equipment are used. Keywords. Containers, port, complex system, logistics, cargo, transportation.

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Integration of controllable scientific equipment into the Russian Segment of the International Space Station

Space engineering and technology ◽

10.33950/spacetech-2308-7625-2020-3-66-75 ◽

2020 ◽

pp. 66-75

Author(s):

Diana M. AYUKAEVA ◽

Fedor A. VORONIN ◽

Mikhail A. POLUARSHINOV ◽

Mikhail A. KHARCHIKOV

Keyword(s):

Control System ◽

International Space Station ◽

Electromagnetic Compatibility ◽

Space Station ◽

Space Experiment ◽

Successful Operation ◽

International Space ◽

Scientific Equipment ◽

Cargo Transportation ◽

And Control

The paper discusses the process of integrating scientific equipment into the Russian Segment of the International Space Station (ISS RS) to conduct space experiment using the ISS IS information and control system. The paper addresses the stages in ground processing of scientific equipment that are critical for its successful operation after delivery to the ISS RS: tests on the hardware (vibration and hydraulic tests, electromagnetic compatibility tests, incoming inspection), development of the software for the equipment using ground debugging facility and conducting integrated tests in the checkout facility. It points out the need to update the existing stages of ground preparations for experiments to reduce the hardware ground processing time. Taking as examples the space experiment Terminator and experiments conducted using cargo transportation spacecraft Progress, the paper resents results obtained through the use of the described approach. Key words: information and control system, scientific equipment, space experiment, International Space Station, logistics spacecraft Progress, microgravity.

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DETERMINATION OF THE OPTIMAL ROUTES FOR A COMBINATION SYSTEM OF CARGO TRANSPORTATION

World of transport and technological machines ◽

10.33979/2073-7432-2019-67-4-57-65 ◽

2019 ◽

Vol 67 (4) ◽

pp. 57-65

Author(s):

К.S. PODSHIVALOVA ◽

◽

S.F. PODSHIVALOV ◽

Keyword(s):

Combination System ◽

Cargo Transportation

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The Rise of Climate-Driven Sediment Discharge in the Amazonian River Basin

Atmosphere ◽

10.3390/atmos11020208 ◽

2020 ◽

Vol 11 (2) ◽

pp. 208 ◽

Cited By ~ 3

Author(s):

Nazzareno Diodato ◽

Naziano Filizola ◽

Pasquale Borrelli ◽

Panos Panagos ◽

Gianni Bellocchi

Keyword(s):

River Basin ◽

Amazon Basin ◽

Global Climate ◽

Climate Extremes ◽

Temporal Variations ◽

Sediment Discharge ◽

Storm Events ◽

Discharge Data ◽

Magdalena River ◽

Sediment Export

The occurrence of hydrological extremes in the Amazon region and the associated sediment loss during rainfall events are key features in the global climate system. Climate extremes alter the sediment and carbon balance but the ecological consequences of such changes are poorly understood in this region. With the aim of examining the interactions between precipitation and landscape-scale controls of sediment export from the Amazon basin, we developed a parsimonious hydro-climatological model on a multi-year series (1997–2014) of sediment discharge data taken at the outlet of Óbidos (Brazil) watershed (the narrowest and swiftest part of the Amazon River). The calibrated model (correlation coefficient equal to 0.84) captured the sediment load variability of an independent dataset from a different watershed (the Magdalena River basin), and performed better than three alternative approaches. Our model captured the interdecadal variability and the long-term patterns of sediment export. In our reconstruction of yearly sediment discharge over 1859–2014, we observed that landscape erosion changes are mostly induced by single storm events, and result from coupled effects of droughts and storms over long time scales. By quantifying temporal variations in the sediment produced by weathering, this analysis enables a new understanding of the linkage between climate forcing and river response, which drives sediment dynamics in the Amazon basin.

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Study of Model for Selection of Priorities for Development of Cargo Transportation

SHS Web of Conferences ◽

10.1051/shsconf/20196702003 ◽

2019 ◽

Vol 67 ◽

pp. 02003

Author(s):

Valerii Kuleshov ◽

Ganna Shapoval ◽

Maksym Kutsenko

Keyword(s):

Regulatory Framework ◽

Market Development ◽

Rolling Stock ◽

Cargo Transportation ◽

Selection Of

The transport market of operator companies of various forms of ownership in Ukraine is constantly evolving, but the tasks associated with the selection and implementation of the priorities of the development of the transport market, the provision of railway services by the carriers - owners of rolling stock, are not fully resolved. There is no regulatory framework that determines the procedure for choosing the priorities of transport market development, their status is not defined, the relation of the selected priorities with the budget of Ukraine is not defined. Therefore, the task of improving the mechanism for selecting scientific and technological priorities for the development of these processes is relevant.

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Recent Developments in Computational Methods for the Analysis of Ducted Propellers in Open Water

Journal of Ship Research ◽

10.5957/josr.09180063 ◽

2019 ◽

Vol 63 (4) ◽

pp. 219-234

Author(s):

João Baltazar ◽

José A. C. Falcão de Campos ◽

Johan Bosschers ◽

Douwe Rijpkema

Keyword(s):

Computational Methods ◽

Open Water ◽

Boundary Element Methods ◽

Navier Stokes ◽

Hydrodynamic Analysis ◽

Numerical Predictions ◽

Ducted Propeller ◽

Recent Developments ◽

Propeller Performance ◽

Ducted Propellers

This article presents an overview of the recent developments at Instituto Superior Técnico and Maritime Research Institute Netherlands in applying computational methods for the hydrodynamic analysis of ducted propellers. The developments focus on the propeller performance prediction in open water conditions using boundary element methods and Reynolds-averaged Navier-Stokes solvers. The article starts with an estimation of the numerical errors involved in both methods. Then, the different viscous mechanisms involved in the ducted propeller flow are discussed and numerical procedures for the potential flow solution proposed. Finally, the numerical predictions are compared with experimental measurements.

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