Study on riverbed variation management by groin at a river confluence associated with the barrage water

2020 ◽  
pp. 653-662
Author(s):  
Y. Okamoto ◽  
J. Nishio ◽  
K. Kanda ◽  
K. Michioku ◽  
F. Nakamura ◽  
...  
Keyword(s):  
River Confluence ◽  
Variation Management

Predictive modelling of multiperiod geoarchaeological resources at a river confluence: a case study from the Trent–Soar, UK

2006 ◽  
Vol 13 (4) ◽  
pp. 241-250 ◽  
Author(s):  
Chris J. Carey ◽  
Tony G. Brown ◽  
Keith C. Challis ◽  
Andy J. Howard ◽  
Lynden Cooper
Keyword(s):  
Predictive Modelling ◽  
River Confluence

scholarly journals TIDAL FLOW CHARACTERISTICS IN YANGON RIVER CONFLUENCE

2016 ◽  
Vol 72 (2) ◽  
pp. I_1669-I_1674
Author(s):  
Shota SETO ◽  
Takenori SHIMOZONO ◽  
Yoshimitsu TAJIMA ◽  
Akiyuki KAWASAKI
Keyword(s):  
Tidal Flow ◽  
Flow Characteristics ◽  
River Confluence

Turbulent flow structure at a discordant river confluence: Asymmetric jet dynamics with implications for channel morphology

2017 ◽  
Vol 122 (6) ◽  
pp. 1278-1293 ◽  
Author(s):  
Alexander N. Sukhodolov ◽  
Julian Krick ◽  
Tatiana A. Sukhodolova ◽  
Zhengyang Cheng ◽  
Bruce L. Rhoads ◽  
...  
Keyword(s):  
Turbulent Flow ◽  
Flow Structure ◽  
Channel Morphology ◽  
River Confluence ◽  
Turbulent Flow Structure

Variation Management in the Product-Service Supply Chains of Repairable Products

2018 ◽  
pp. 104-152
Author(s):  
Shabnam Rezapour ◽  
Amirhossein Khosrojerdi ◽  
Golnoosh Rasoulifar ◽  
Janet K. Allen ◽  
Jitesh H. Panchal ◽  
...  
Keyword(s):  
Supply Chains ◽  
Product Service ◽  
Service Supply Chains ◽  
Variation Management

Variation Management in Pre- and After-Sales Supply Chains of Non-Repairable Products

2018 ◽  
pp. 53-103
Author(s):  
Shabnam Rezapour ◽  
Amirhossein Khosrojerdi ◽  
Golnoosh Rasoulifar ◽  
Janet K. Allen ◽  
Jitesh H. Panchal ◽  
...  
Keyword(s):  
Supply Chains ◽  
Variation Management

Variation Management in a Single Forward Supply Chain

2018 ◽  
pp. 29-52
Author(s):  
Shabnam Rezapour ◽  
Amirhossein Khosrojerdi ◽  
Golnoosh Rasoulifar ◽  
Janet K. Allen ◽  
Jitesh H. Panchal ◽  
...  
Keyword(s):  
Supply Chain ◽  
Variation Management

scholarly journals Hidrogeomorfologia em confluência fluvial obtusa, Guarapuava, Paraná

2021 ◽  
Vol 14 (4) ◽  
pp. 2131-2148
Author(s):  
Leandro Redin Vestena ◽  
Alessandro Kominecki
Keyword(s):  
Land Use ◽  
Sediment Transport ◽  
Liquid Mixtures ◽  
Hydraulic Characteristics ◽  
Specific Flow ◽  
River Ecosystems ◽  
River Bed ◽  
River Confluence ◽  
Land Use And Management ◽  
Junction Angle

Solid and liquid mixtures in river courses intensify in areas of river confluence, conditioned mainly by the angular opening of the junction. Knowledge of hydrosedimentological dynamics in bedrock junctions with different angular openings is essential for understanding morphological adjustment at confluences and for supporting actions for the preservation and conservation of river ecosystems. For this reason, this article presents the results of a hydrogeomorphologic study on a river confluence with an obtuse junction angle (>100º), in a plateau bedrock river, in the Serra Geral Formation. The research evaluated a fluvial segment upstream and downstream of the Pedras River and in the Pombas River tributary, in Guarapuava, Paraná, through observations and measurements of morphological and hydraulic characteristics, width, talweg depth, bed declivity and bankfull flow. Morphological adjustment in obtuse confluences is peculiar in that the fluvial junction angle conditions specific flow, erosion, sediment transport and deposition dynamics, mainly resulting from its association with the geological nature of the river bed and types of land use and management upstream of the confluence.

scholarly journals Nutrient dynamics and stream order influence microbial community patterns along a 2914 km transect of the Mississippi River

2016 ◽  
Author(s):  
Michael W. Henson ◽  
Jordan Hanssen ◽  
Greg Spooner ◽  
Patrick Fleming ◽  
Markus Pukonen ◽  
...  
Keyword(s):  
Water Quality ◽  
Microbial Community ◽  
Mississippi River ◽  
Nutrient Dynamics ◽  
18S Rrna Gene ◽  
Rrna Gene ◽  
Ohio River ◽  
Core Microbiome ◽  
Water Transportation ◽  
River Confluence

AbstractDraining 31 states and roughly 3 million km2, the Mississippi River (MSR) and its tributaries constitute an essential resource to millions of people for clean drinking water, transportation, agriculture, and industry. Since the turn of the 20thcentury, MSR water quality has continually rated poorly due to human activity. Acting as first responders, microorganisms can mitigate, exacerbate, and/or serve as predictors for water quality, yet we know little about their community structure or ecology at the whole river scale for large rivers. We collected both biological (16S and 18S rRNA gene amplicons) and physicochemical data from 38 MSR sites over nearly 3000 km from Minnesota to the Gulf of Mexico. Our results revealed a microbial community composed of similar taxa to other rivers but with unique trends in the relative abundance patterns among phyla, OTUs, and the core microbiome. Furthermore, we observed a separation in microbial communities that mirrored the transition from an 8thto 10thStrahler order river at the Missouri River confluence, marking a different start to the lower MSR than the historical distinction at the Ohio River confluence in Cairo, IL. Within MSR microbial assemblages we identified subgroups of OTUs from the phyla Acidobacteria, Bacteroidetes, Oomycetes, and Heterokonts that were associated with, and predictive of, the important eutrophication nutrients nitrate and phosphate. This study offers the most comprehensive view of MSR microbiota to date, provides important groundwork for higher resolution microbial studies of river perturbation, and identifies potential microbial indicators of river health related to eutrophication.

Sign in / Sign up

Export Citation Format

Share Document