scholarly journals Characterization of Aplysia Attractin, the First Water-borne Peptide Pheromone in Invertebrates

1998 ◽  
Vol 194 (2) ◽  
pp. 120-131 ◽  
Author(s):  
S. D. Painter ◽  
B. Clough ◽  
R. W. Garden ◽  
J. V. Sweedler ◽  
G. T. Nagle
2003 ◽  
Vol 205 (1) ◽  
pp. 16-25 ◽  
Author(s):  
Sherry D. Painter ◽  
Bret Clough ◽  
Sara Black ◽  
Gregg T. Nagle

2015 ◽  
Vol 132 (42) ◽  
pp. n/a-n/a ◽  
Author(s):  
Magdalena Serkis ◽  
Rafał Poręba ◽  
Jiří Hodan ◽  
Jana Kredatusová ◽  
Milena Špírková

2017 ◽  
Vol 142 ◽  
pp. 96 ◽  
Author(s):  
Eloy Gonzales-Gustavson ◽  
Yexenia Cárdenas-Youngs ◽  
Miquel Calvo ◽  
Marcelle Figueira Marques da Silva ◽  
Ayalkibet Hundesa ◽  
...  
Keyword(s):  

2011 ◽  
Vol 58 (3) ◽  
pp. 234-241 ◽  
Author(s):  
CLAUDIO ALIMENTI ◽  
ADRIANA VALLESI ◽  
SERGIO FEDERICI ◽  
GRAZIANO DI GIUSEPPE ◽  
DINI FERNANDO ◽  
...  

Biofouling ◽  
2016 ◽  
Vol 32 (1) ◽  
pp. 71-79 ◽  
Author(s):  
Ramu Muthu Selvam ◽  
Gopal Vinothini ◽  
Sethuramalingam Palliyarai Thaiyammal ◽  
Selvanathan Latha ◽  
Arunachalam Chinnathambi ◽  
...  

2021 ◽  
Vol 14 (1) ◽  
pp. 370
Author(s):  
Muthia Elma ◽  
Amalia Enggar Pratiwi ◽  
Aulia Rahma ◽  
Erdina Lulu Atika Rampun ◽  
Mahmud Mahmud ◽  
...  

The high content of natural organic matter (NOM) is one of the challenging characteristics of peat water. It is also highly contaminated and contributes to some water-borne diseases. Before being used for potable purposes, peat water must undergo a series of treatments, particularly for NOM removal. This study investigated the effect of coagulation using aluminum sulfate coagulant and adsorption using powdered activated carbon (PAC) as a pretreatment of ultrafiltration (UF) for removal of NOM from actual peat water. After preparation and characterization of polysulfone (Psf)-based membrane, the system’s performance was evaluated using actual peat water, particularly on NOM removal and the UF performances. The coagulation and adsorption tests were done under variable dosings. Results show that pretreatment through coagulation–adsorption successfully removed most of the NOM. As such, the UF fouling propensity of the pretreated peat water was substantially lowered. The optimum aluminum sulfate dosing of 175 mg/L as the first pretreatment stage removed up to 75–78% NOM. Further treatment using the PAC-based adsorption process further increased 92–96% NOM removals at an optimum PAC dosing of 120 mg/L. The final UF-PSf treatment reached NOM removals of 95% with high filtration fluxes of up to 92.4 L/(m2.h). The combination of three treatment stages showed enhanced UF performance thanks to partial pre-removal of NOM that otherwise might cause severe membrane fouling.


2019 ◽  
Vol 70 (2) ◽  
pp. 107-114
Author(s):  
Shikhar Shukla ◽  
Krishna K. Pandey ◽  
Kishan Kumar V. S.

Wood finishes are used extensively to improve the aesthetic value and protect wood products from moisture. These organic coatings generally contain volatile organic compounds (VOC) as solvents that evaporate when the coatings cure over the surface. Due to strict legislations against these hazardous VOCs, the buyers across the globe are shifting towards products finished with water borne coats. Two of the most commonly used wood coatings in India are polyurethane and nitrocellulose (NC) lacquer. This paper aims at comparing these two wood coatings with their water borne counterparts. The study was conducted on the wood substrate of Melia dubia. Chemical characterization of the cured coats was attempted through FTIR spectroscopy. Physical appearances in terms of gloss and film thickness were also studied. Bands of urethane, urea and nitric groups were identified, which helped in understanding the changes in chemical structure of the finishes after curing. The thickness of the organic coatings was significantly higher than that of their water-borne counterparts. Gloss of water based coatings was observed to be lesser than that of their organic solvent based counterparts in either coating material. In case of lacquer, the reduction was up-to 33 %. whereas in case of PU, gloss dropped down by about 54 %.


2005 ◽  
Vol 98 (2) ◽  
pp. 620-631 ◽  
Author(s):  
S. Subramani ◽  
J. M. Lee ◽  
I. W. Cheong ◽  
J. H. Kim

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