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| 1 | Fabrication of Bi_2O_3/TiO_2nanocomposites and their applications to the degradation of pollutants in air and water under visible-light显示文摘A nanoheterojunction composite photocatalyst Bi2O3/TiO2working under visible-light(λ 420 nm) was prepared by combining two semiconductors Bi2O3 and TiO2 varying the Bi2O3/TiO2molar ratio. Maleic acid was employed as an organic binder to unite Bi2O3 and TiO2 nanoparticles. The SEM, TEM, XRD and diffuse reflectance spectra were utilized to characterize the prepared Bi2O3/TiO2nanoheterojunction. The nanocomposite exhibited unusual high photocatalytic activity in decomposing 2-propanol in gas phase and phenol in aqueous phase and, evolution of CO2 under visible light irradiation while the end members exhibited low photocatalytic activity. The composite was optimized to 5 mol% Bi2O3/TiO2. The remarkable high photocatalytic efficiency originates from the unique relative energy band position of Bi2O3 and TiO2 as well as the absorption of visible light by Bi2O3. | Ashok Kumar Chakraborty Md Emran Hossain Md Masudur Rhaman K M A Sobahan | 2014 | Journal of Environmental Sciences2014，26，2： | 7 |
| 2 | Seasonal variations of phytoplankton diversity in the Coleroon coastal waters,southeast coast of India显示文摘The results of an investigation carried out during June 2005 to May 2007 on physico-chemical parameters,species composition and community structure of phytoplankton including Chlorophyll a(Chl-a) at the Coleroon coastal waters(Southeast coast of India) are reported.Air and surface water temperatures(°C) varied from 25.1 to 30.1 and from 24.5 to 28.5 respectively.Salinity values varied from 6 to 28.5 and the pH ranged between 7.0 and 8.3.Variation in dissolved oxygen content was from 3.1 to 7.5 mg/dm-3 while the light extinction coefficient values(LEC) ranged between 3.1 and 10.1 cm.The ranges of inorganic nutrients(μmol/dm-3) viz.,nitrate,nitrite,phosphate and silicate were 10.1-23.4,1.2-8.9,0.2-3.1 and 55-125,respectively.The ranges of Chlorophyll a(μg/dm-3) values was 2.0-7.5.Presently,124 phytoplankton species representing different classes viz:Bacillariophyceae(77),Dinophyceae(19),Cyanophyceae(15),Chlorophyceae(10) and Chrysophyceae(3) were recorded.The phytoplankton cell abundance varied from 0.290 to 111.662 cells/cm-3,with peak diversity(3.38 bits/ind.) during summer season.The maximum abundance was found during summer season coinciding with the stable hydrographical conditions.The seasonal distribution and abundance of phytoplankton are discussed in relation to hydrographical parameters.Canonical Correspondence Analysis(CCA) was applied in this paper for discriminating environmental factors having effect on phytoplankton community at species level.Coleroon coastal water is subjected to long term fluctuations in physico-chemical parameters depending upon the seasonal tidal amplitude and freshwater influx resulting in a continuous exchange of organic,inorganic,plant and animal matters. | Thillai Rajasekar K Rajkumar M SUN Jun Ashok Prabu V Perumal P | 2010 | Acta Oceanologica Sinica2010，29，5： | 3 |
| 3 | Fecal stream diversion and mucosal cytokine levels in collagenous colitis:A case report显示文摘In this case report, we examined the levels of cytokines expressed before and during fecal stream diversion and after intestinal continuity was restored in a patient with collagenous colitis. We report the case of a46-year-old woman with chronic, active collagenous colitis who either failed to achieve clinical remission or experienced adverse effects with the following drugs:loperamide, cholestyramine, budesonide, methotrexate and adalimumab. Due to the intractable nature of the disease and because the patient was having up to 15 watery bowel movements per day, she underwent a temporary ileostomy. Colonic biopsies were analyzed for mucosal cytokine protein levels before and during fecal stream diversion and after intestinal continuity was restored. Mucosal protein levels of interleukin(IL)-1β,IL-2, IL-6, IL-12, IL-17 A, IL-23, TNF, IFN-γ, IL-4, IL-5,IL-10 and IL-13 were all higher during active disease and decreased to non-detectable or considerably lower levels during fecal stream diversion. One month after the restoration of bowel continuity, when the patient experienced a relapse of symptoms, IL-2, IL-23 and IL-21 levels were again increased. Our results indicate that fecal stream diversion in this patient suppressed the levels of all cytokines analyzed in colonic biopsies. With the recurrence of clinical symptoms and histological changes after bowel reconstruction,the levels of primarily proinflammatory cytokines increased. Our findings support the hypothesis that a luminal factor triggers the inflammation observed in collagenous colitis. | Niki Daferera Ashok Kumar Kumawat Elisabeth Hultgren-Honquist Simone Ignatova Magnus Strom Andreas Münch | 2015 | World Journal of Gastroenterology2015，21，19： | 2 |
| 4 | New Managerial Challenges from Supply Chain Opportunities 显示文摘 | Ballou Ronald H Stephen M Gilbert Ashok Mukherjee | 2006 | Industrial Marketing Management2006，29，： | 1 |
| 5 | Extraction expiration studies of Rh, Pt and Pd using cyanex921 in toluenea possible application to recovery from spent catalysts显示文摘 | Ashok A M Purushottum M D | 2001 | Hydrolnetallurgy2001，61，： | 1 |
| 6 | A new criteri- on for end-conduction effects in hot-wire anemometry显示文摘 | HULTMARK M ASHOK A SMITS A J | 2011 | Measurement Science and Technology2011，22，05： | 1 |
| 7 | Heat management in aluminium/air batteries: sources of heat显示文摘 | Patnaik R S M Ganesh S Ashok G | 1994 | Power Sources1994，50，3： | 1 |
| 8 | Rao Studieson thermal and morphologyical behavior of silieonized epoxy bismaleimide matrices 显示文摘 | A Ashok Kumar M Alagar R M V G K | 2001 | J Appl Polym Sci2001，81，： | 1 |
| 9 | Performance of aluminium anodes under heat treatment显示文摘 | ASHOK S R VENKATARAMANI A PARTHIBAN G T SRINWASAN S PALANISWAMY N MANI A RAGHAVAN M | 2002 | Corrosion on Prevention & Control2002，49，2： | 1 |
| 10 | Synthesis and characterization of nano-hydroxyapatite at ambient temperature using cationic surfactant显示文摘 | Shanthi P M S Ashok M Balasubramanian T | 2009 | Materials Letters2009，63，2425： | 1 |
| 11 | Triterpenoids 显示文摘 | Shashi B M Ashoke K N Gita R | 1992 | Phyto-chemistry1992，31，7： | 1 |
| 12 | Ethanol production in solid substrate fermentation using thermotolerant yeasts 显示文摘 | Kiran Sree N Sridhar M Venkateswar Rao L Ashok Pandey | 1999 | Process Biochem1999，34，： | 1 |
| 13 | Effect of puu C overexpression and nitrate addition on glycerol metabolism and anaerobic 3-hydroxypropionic acid production in recombinant Klebsiella pneumoniaeΔglp KΔdha T显示文摘 | ASHOK S RAJ S M KO Y | 2013 | Metabolic Engineering2013，15，： | 1 |
| 14 | A cardiovascular drug rescues mice from lethal sepsis by selectively attenuating a late-acting pminflammatory mediator, high mobility group box 1 显示文摘 | Li W Li JH Ashok M | 2007 | J Immunol2007，178，6： | 1 |
| 15 | Nanofiltration using pore-filled membranes:effect of polyelectrolyte composition on performance显示文摘 | Ronald F C Alicja M M Ashok K P | 2001 | Separation and Purification Technology2001，2223，： | 1 |
| 16 | A major ingredient of green tea rescues mice from lethal sepsis partly by inhibiting HMGB1显示文摘 | LI W ASHOK M LI J | 2007 | PLoS One2007，2，11： | 1 |
| 17 | Synthesis,antimicrobial and anti-inflammatory activities of some 1,2,4-triazolothiadiasoles and 1,2,4-triazolothiadiasines bearing trichlorophenyl moiety显示文摘 | Karegoudar P Prasad D J Ashok M | 2008 | Eur J Med Chem2008，43，4： | 1 |
| 18 | A review of drought concepts显示文摘 | Ashok K M Vijay P S | 2010 | Journal of Hydrology2010，，391： | 1 |
| 19 | Reduction in post-prandial hyperglycemic excursion through o-glucosidase inhibition by 显示文摘 | ASHOK K T RAVINDRA M K SACHIN B A | 2008 | Bioorg Med Chem Lett2008，18，14： | 1 |
| 20 | LbL Fabricated Poly(styrene sulfonate)/TiO2 Multilayer Thin Films for Environmental Applications显示文摘 | D Neela Priya Jayant M Modak Ashok M Raichur | 2009 | ACS Appl Mater Interfaces2009，1，11： | 1 |
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