Study of Gas-tight Deep-sea Water Sampling System Based on Pressure Self-adaptive Equalization

2010 ◽  
Vol 46 (12) ◽  
pp. 148 ◽  
Author(s):  
Haocai HUANG
Keyword(s):  
Deep Sea ◽  
Sea Water ◽  
Adaptive Equalization ◽  
Water Sampling ◽  
Sampling System ◽  
Deep Sea Water ◽  
Gas Tight ◽  
Self Adaptive

Novel gas-tight multi-sampler for discrete deep-sea water

2012 ◽  
Vol 25 (4) ◽  
pp. 722-728 ◽  
Author(s):  
Haocai Huang ◽  
Canjun Yang ◽  
Shicheng Chen ◽  
Daohua Chen ◽  
Chunyan Sun ◽  
...  
Keyword(s):  
Deep Sea ◽  
Sea Water ◽  
Deep Sea Water ◽  
Gas Tight

Study of the Sealing Characteristic of Polytetrafluoroethylene-Coated O-Ring Applied in Gas-Tight Deep-Sea Water Sampler

2011 ◽  
Vol 295-297 ◽  
pp. 3-10 ◽  
Author(s):  
Hao Cai Huang ◽  
Yan Ying Ye ◽  
Can Jun Yang ◽  
Jian Xing Leng ◽  
Ying Chen
Keyword(s):  
Deep Sea ◽  
Sea Water ◽  
Theory And Practice ◽  
Gas Content ◽  
Element Analysis ◽  
Sea Trial ◽  
Deep Sea Water ◽  
Ocean Science ◽  
Water Sampler ◽  
Gas Tight

In ocean science research, it often requires the integrity of the gas content in samples of seawater. The gas-tight deep-sea water sampler (GTWS) based on pressure self-adaptive equalizer (PSAE) can satisfy the requirement very well. The PSAE is required to achieve a reliable dynamic sealing in deep sea. The general O-ring is difficult to meet this requirement. The polytetrafluoroethylene (PTFE)-coated O-ring is chosen as the sealing parts. The finite element analysis (FEA) software ANSYS is used to analyze the contact pressure of the PTFE-coated O-ring in different conditions, that is, analyze the GTWS’s gas tightness theoretically. Combine with the sea trial results, the feasibility and reliability of the PTFE-coated O-ring in deep-sea dynamic sealing in PSAE can be prove both in theory and practice.

scholarly journals Study of the sealing performance of tubing adapters in gas-tight deep-sea water sampler

2014 ◽  
Vol 6 (3) ◽  
pp. 749-761 ◽  
Author(s):  
Haocai Huang ◽  
Zhouli Yuan ◽  
Wuchen Kang ◽  
Zhao Xue ◽  
Xihao Chen ◽  
...  
Keyword(s):  
Deep Sea ◽  
Sea Water ◽  
Deep Sea Water ◽  
Sealing Performance ◽  
Water Sampler ◽  
Gas Tight

scholarly journals Pararhodobacter marinus sp. nov., isolated from deep-sea water of the Indian Ocean

2019 ◽  
Vol 69 (4) ◽  
pp. 932-936 ◽  
Author(s):  
Qiliang Lai ◽  
Xiupian Liu ◽  
Jun Yuan ◽  
Shuchen Xie ◽  
Zongze Shao
Keyword(s):  
Indian Ocean ◽  
Deep Sea ◽  
Type Species ◽  
Sea Water ◽  
Rrna Gene ◽  
Chromosomal Dna ◽  
Content Type ◽  
Deep Sea Water ◽  
Link Type ◽  
The Indian Ocean

A taxonomic study was carried out on strain CIC4N-9T, which was isolated from deep-sea water of the Indian Ocean. The bacterium was Gram-stain-negative, catalase- and oxidase-positive, rod-shaped and non-motile. Growth was observed at salinities of 0–9% and at temperatures of 4–41 °C. The isolate was able to degrade gelatin but not aesculin. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain CIC4N-9T belonged to the genus Pararhodobacter , with the highest sequence similarity to the only recognized species, Pararhodobacter aggregans D1-19T (96.9 %). The average nucleotide identity and estimated DNA–DNA hybridization values between strain CIC4N-9T and P. aggregans D1-19T were 80.4 and 23.0 %, respectively. The principal fatty acids were summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c), C16 : 0, C18 : 1ω7c 11-methyl, C18 : 0 and C17 : 0. The G+C content of the chromosomal DNA was 66.8 mol%. The sole respiratory quinone was determined to be Q-10. Phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, two unknown phospholipids, four unknown aminolipids and one unknown polar lipid were present. The combined genotypic and phenotypic data show that strain CIC4N-9T represents a novel species within the genus Pararhodobacter , for which the name Pararhodobacter marinus sp. nov. is proposed. The type strain is CIC4N-9T (=MCCC 1A01225T=KCTC 52336T).

scholarly journals Anti-Inflammatory Properties of Mineral-Balanced Deep Sea Water in In-Vitro and In-Vivo Models of Inflamed Intestinal Epithelium

2020 ◽  
Vol 10 (15) ◽  
pp. 5183
Author(s):  
Jain Nam ◽  
Kyeong Jin Kim ◽  
Geonhee Park ◽  
Byeong Goo Kim ◽  
Gwi-Hwa Jeong ◽  
...  
Keyword(s):  
Deep Sea ◽  
Sea Water ◽  
Cell Model ◽  
Mineral Waters ◽  
In Vivo Models ◽  
Deep Sea Water ◽  
High Calcium ◽  
A Cell

This study aimed to determine the effect of deep-sea water (DSW)-derived mineral waters on intestinal health, using a cell model and a dextran sulfate sodium (DSS)-induced enteritis mouse model. DSW was desalted and minerals were added to generate mineral waters that were classified as trace mineral (TM), high magnesium (HM), high magnesium low salt (HMLS), and high magnesium high calcium (HMHC), using a tabletop electrodialysis device. Caco-2 cells cocultured with Raw264.7 cells were either pre-treated or not with the four water groups, and inflammation was induced by treatment with lipopolysaccharide (LPS). Compared to LPS-treated Caco-2 cells, HMLS-cotreated cells maintained high transepithelial electrical resistance, similar to control cells. FITC-dextran permeability was lower in HMLS-treated than in other cells. In vivo, in comparison to DSS-treated mice, colon shortening was inhibited, and disease activity and colon injury were suppressed in HMLS-cotreated mice. RNA-seq of colonic tissues revealed that inflammatory gene expression was similar among the control and HMLS mice, and DSS-induced expression of inflammation-related genes such as TNF-α and NOS2 and inflammatory chemokine genes was suppressed. Our findings suggest that DSW-derived mineral water intake can help reduce colitis symptoms, and the effects may be partially regulated by magnesium and other minerals.

Effects of Drinking Diluted Deep Sea Water on Growth Performance and Immune Response in Broiler Chickens

2018 ◽  
Vol 7 (1) ◽  
pp. 1-10
Author(s):  
Bounmy Keohavong ◽  
Jun Yeob Lee ◽  
Jeong Heon Lee ◽  
Sung Ki Lee ◽  
Gur Yoo Kim ◽  
...  
Keyword(s):  
Immune Response ◽  
Growth Performance ◽  
Deep Sea ◽  
Broiler Chickens ◽  
Sea Water ◽  
Deep Sea Water
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