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Experimental Center for Coastal & Harbor Engineering
Analytical Service Last update : 2017.08.17 Request for use
Photos
Location
50, Daehak-ro, Yeosu, Jeonnam, 59626, Republic of Korea
Homepage
www.koced.or.kr/en/
Coordinating Country
KOREA
Hosting Organisations
Chonnam National University
Contact Person
Lee jong-in,+82-61-659-7321,jilee@chonnam.ac.kr
Kim yeong-il,+82-61-659-6957,oldboya01@hanmail.net
Ma seung-a,+82-61-659-6766,eekfrl12@nate.com
RI Category
In situ Marine/Freshwater Observatories
Keywords
Coastal,harbormarine structures,wave generator,coast,wave basin,flume
Description
- Coastal, port facilities, technology development and assessment of offshore marine climate change impacts / adaptation technologies
- Global next-generation coastal / port engineering workforce
- Build the research infrastructure for the post of the 2012 Yeosu World Expo utilization
Application Area
- Coastal & offshore safety test
- Sediment tests
- Tide & wave power generation systems, fisheries experiment facility
- Model tests of the coast and harbors
- Water resources development and forecasting, numerical simulation, experimental models of various hydraulic structures
- Understanding of the ecological functions of coastal waters and coastal areas
Service
Specifications
1. 3D wave basin I
- basin size: 50m(L)×50m(B)×1.5m(H), wave generator : 12ea (3m/ea), Max. regular wave height : 0.6m, Frequency range : 0.5~4.0sec
2. 3D wave basin II
- basin size : 40m(L)×30m(B)×1.4m(H), wave generator : 7ea (3m/ea), Max. regular wave height : 0.6m, Frequency range : 0.5~4.0sec
3. 2D wave flume I
- Max. regular wave height : 120cm, Frequency range : 0.5~8 Sec., Max. current speed : 1.0m/s at water level of 2.0m, Max. speed of water level rising : 1.2m/min
4. 2 wave basin II
- Max. regular wave height : 60cm, Frequency range : 0.5~8.0 Sec.
5. 2 wave basin III
- Max. regular wave height : 60cm, Frequency range : 0.5~5.0 Sec
Experimental study for hydraulic performance of artificial reefs

Comparison of results according to structure type and of artificial leaf

(a) Case BLOCK

(b) Case RT(L)

(c) Case RT(S)

(d) Case TTP(L)

(e) Case TTP(S)

Experiment results of transmission coefficient by structure

Hybrid Support Structure Reduction of Wave and Performance Verification wave test

2D wave flume I, digital wave gage,  inclinometer, load cell, pressure gauge

링크명 : https://youtu.be/_R3jXN6m21w

Publication

Jahanizadeh S, Yazdian F, Marjani A, Omidi M, Rashedi H. Int J Biol Macromol. 2017 Jul 23. pii: S0141-8130(17)32039-1. doi: 10.1016/j.ijbiomac.2017.07.101

A novel bio nanocomposite of Carboxymethyl Starch (CMS)-Chitosan (CS)-Montmorillonite (MMT) was developed for Curcumin delivery. To improve Curcumin entrapment into Cs-CMS-MMT, different ratios of Chitosan (Cs), Carboxymethyl Starch (CMS) and MMT were used. Particle size and Curcumin entrapment efficiency (EE) were highly affected by different formulation variables. Polysaccharide concentration, Cs-CMS ratio and sonication time had significant effect on particle size. MMT addition enhanced the entrapment efficiency. To optimize entrapment efficiency of Curcumin, statistical analysis was used, and an experiment based on screening design performed with two variants. Morphology and structural characterization of nanocomposite and Curcumin entrapment efficiency were analyzed. The optimal formulation had the average particles size of 35.9nm with Curcumin entrapment efficiency of 91%. Finally, the antibacterial activity of bio nanocomposite against Streptococcus mutans was assessed. Curcumin-loaded bio nanocomposite hindered the formation of biofilm on dental models very effectively.