نتایج جستجو برای: waterway transportation

تعداد نتایج: 58167  

Journal: :Journal of water and health 2010
Cynthia L Winkworth Christoph D Matthaei Colin R Townsend

Waterway degradation in agricultural settings is caused by direct and diffuse sources of pollution. Waterway fencing focuses on reducing direct faecal contamination, but the extent to which it reduces overland surface runoff of pathogens is unknown. This study evaluated the potential of four riparian treatments to reduce Giardia in saturation excess surface runoff entering the waterway. Treatme...

Journal: :Journal of physics 2022

Abstract The increase of water shipping density, coupled with the increasing complexity waterway, ship's intelligent collision avoidance system plays a pivotal role in transportation safety shipping. Therefore, it has gradually become focus traffic research. In recent years, China is still facing period great development navigation technology, safety, green, digital, will trend. Although waterw...

2008

Lately Maritime research areas have moved their interests to cover new areas conferring a more general character to them. BOYAS project is proposed including these new perspectives as well as the classical ones. Trying to get this integral character for the waterway ambient and its activities management, the convergence between Multiagent Systems and Wireless Sensor Networks is studied. Key-Wor...

2009
Abdelazim M. Negm Gamal M. Abdel-Aal Magid M. Elfiky Yasser A. Mohamed Govinda Rao

Many of the huge structures like New Esna, and New Nega Hammadi Barrages face a great harmful caused by local scour downstream (DS) their stilling basins. It is planned to redesign many of these structures to minimize these harmful impacts of the DS local scour. This research paper presents the results of an extensive experimental investigation on using an optimized submerged curved deflector t...

2014
Christoph Zielhofer Eva Leitholdt Lukas Werther Andreas Stele Jens Bussmann Sven Linzen Michael Schneider Cornelius Meyer Stefanie Berg-Hobohm Peter Ettel John P. Hart

The Central European Watershed divides the Rhine-Main catchment and the Danube catchment. In the Early Medieval period, when ships were important means of transportation, Charlemagne decided to link both catchments by the construction of a canal connecting the Schwabian Rezat and the Altmühl rivers. The artificial waterway would provide a continuous inland navigation route from the North Sea to...

2017
Joe D. Luck Adam C. Pike Santosh Pitla Tom Mueller Scott A. Shearer

Grassed waterways placed in high water flow zones substantially reduce erosion in agricultural fields. A recent study proposed a statistical model for waterway planning for a farm in the Outer Bluegrass physiographic region of Kentucky. The logistic regression model identified where channel erosion was likely to occur based on elevation-derived terrain attributes. The objective of this study wa...

ژورنال: علوم آب و خاک 1998
خلیلی, داور , یوسفی, ابوالقاسم ,

Physiographic characteristics of Atrak Watershed described by a number of parameters were used in regression models to estimate maximum daily discharges. These parameters were sub-watershed area, main waterway length, mean waterway slope, mean watershed elevation and mean watershed slope. Based on the results of correlation between the above parameters and their suitability for discharge estima...

Journal: :E3S web of conferences 2023

Canal plays a prominent role in improving regional transportation conditions, economic development and cultural dissemination. However, the complexity of canal project will inevitably cause disturbance to water bodies develop series impacts. This paper summarizes engineering contents involved projects, combines experience waterway conservancy hub on ecological environment, analyzes main environ...

Journal: :Journal of applied science and environmental management 2023

This paper discusses the factors that militate against growth and sustainability of Nigerian Inland waterway ports from secondary data inductive research perspective. The nation has adequate coverage major inland waters are either navigable at present or potentially if a clearing dredging is implemented. Generally speaking, Nigeria enormous water potential capable maximally reducing pressure on...

Journal: :Journal of Political Economy 1911

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