scholarly journals Effect of water flow on the photosynthesis of three marine macrophytes from a fringing-reef lagoon

2006 ◽  
Vol 323 ◽  
pp. 119-132 ◽  
Author(s):  
S Enríquez ◽  
A Rodríguez-Román
Keyword(s):  
Water Flow ◽  
Fringing Reef ◽  
Reef Lagoon ◽  
Effect Of Water ◽  
Marine Macrophytes ◽  
Fringing Reef Lagoon

On the circulation in the Puerto Morelos fringing reef lagoon

Coral Reefs ◽  
2007 ◽  
Vol 26 (1) ◽  
pp. 149-163 ◽  
Author(s):  
C. Coronado ◽  
J. Candela ◽  
R. Iglesias-Prieto ◽  
J. Sheinbaum ◽  
M. López ◽  
...  
Keyword(s):  
Fringing Reef ◽  
Reef Lagoon ◽  
Fringing Reef Lagoon

Geoelectrical signals of geologic and hydrologic processes in a fringing reef lagoon setting

2014 ◽  
Vol 517 ◽  
pp. 508-520 ◽  
Author(s):  
Kevin M. Befus ◽  
M. Bayani Cardenas ◽  
Douglas R. Tait ◽  
Dirk V. Erler
Keyword(s):  
Fringing Reef ◽  
Hydrologic Processes ◽  
Reef Lagoon ◽  
Geoelectrical Signals ◽  
Fringing Reef Lagoon

Salt intrusion at a submarine spring in a fringing reef lagoon

2015 ◽  
Vol 120 (4) ◽  
pp. 2736-2750 ◽  
Author(s):  
Sabrina M. Parra ◽  
Arnoldo Valle-Levinson ◽  
Ismael Mariño-Tapia ◽  
Cecilia Enriquez
Keyword(s):  
Salt Intrusion ◽  
Fringing Reef ◽  
Reef Lagoon ◽  
Submarine Spring ◽  
Fringing Reef Lagoon

scholarly journals Effect of Water Flow on Underwater Wet Welded A36 Steel

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 682
Author(s):  
Eko Surojo ◽  
Aziz Harya Gumilang ◽  
Triyono Triyono ◽  
Aditya Rio Prabowo ◽  
Eko Prasetya Budiana ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Water Flow ◽  
Flow Rate ◽  
Water Flow Rate ◽  
Physical And Mechanical Properties ◽  
Shielded Metal Arc Welding ◽  
Effect Of Water ◽  
Bending Effect ◽  
Metal Arc Welding ◽  
A36 Steel

Underwater wet welding (UWW) combined with the shielded metal arc welding (SMAW) method has proven to be an effective way of permanently joining metals that can be performed in water. This research was conducted to determine the effect of water flow rate on the physical and mechanical properties (tensile, hardness, toughness, and bending effect) of underwater welded bead on A36 steel plate. The control variables used were a welding speed of 4 mm/s, a current of 120 A, electrode E7018 with a diameter of 4 mm, and freshwater. The results show that variations in water flow affected defects, microstructure, and mechanical properties of underwater welds. These defects include spatter, porosity, and undercut, which occur in all underwater welding results. The presence of flow and an increased flow rate causes differences in the microstructure, increased porosity on the weld metal, and undercut on the UWW specimen. An increase in water flow rate causes the acicular ferrite microstructure to appear greater, and the heat-affected zone (HAZ) will form finer grains. The best mechanical properties are achieved by welding with the highest flow rate, with a tensile strength of 534.1 MPa, 3.6% elongation, a Vickers microhardness in the HAZ area of 424 HV, and an impact strength of 1.47 J/mm2.

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