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| 1 | Geochemical characteristics of mafic and ultramafic rocks from the Naga Hills Ophiolite, India:Implications for petrogenesis显示文摘The Naga Hills Ophiolite(NHO) represents one of the fragments of Tethyan oceanic crust in the Himalayan Orogenic system which is exposed in the Phek and Kiphire districts of Nagaland, India. The NHO is composed of partially serpentinized dunite, peridotite, gabbro, basalt, minor plagiogranite,diorite dyke and marine sediments. The basalts are mainly composed of fine grained plagioclase feldspar, clinopyroxene and orthopyroxene and show quenching and variolitic textures. The gabbros are characterized by medium to coarse grained plagioclase, orthopyroxene and clinopyroxene with ophitic to sub-ophitic textures. The ultramafic cumulates are represented by olivine, Cpx and Opx.Geochemically, the basalts and gabbros are sub-alkaline to alkaline and show tholeiitic features.The basalts are characterized by 44.1-45.6 wt.% of SiO_2 with 28-38 of Mg#, and the gabbros by38.7-43.7 wt.% of SiO_2, and 26-79 of Mg#. The ultramafic rocks are characterized by 37.4-52.2 wt.% of SiO_2, and 80-88 of Mg#. In multi-element diagrams(spidergrams) both basalts and gabbros show fractionated trends with strong negative anomalies of Zr. Nb. Sr and a gentle negative anomaly of P.However, the rare earth element(REE) plots of the basalts and gabbros show two distinct patterns. The first pattern, represented by light REE(LREE) depletion, suggests N-MORB features and can be interpreted as a signature of Paleo-Tethyan oceanic crust. The second pattern, represented by LREE enrichment with negligible negative Eu anomaly, conforms to E-MORB, and may be related to an arc tectonic setting. In V vs. Ti/1000, Cr vs. Y and AFM diagrams, the basalts and gabbros plot within Island Arc Tholeiite(IAT) and MORB fields suggesting both ridge and arc related settings. The ultramafic rocks exhibit two distinct patterns both in spidergrams and in REE plots. In the spidergram, one group displays highly enriched pattern, whereas the other group shows near flat pattern compared to primordial mantle. In the REE plot, one group displays steeper slopes [(La/Yb)N = 4.340-4.341], whereas the other displays moderate to flat slopes [(La/Yb)N = 0.97-1.67] and negative Eu-anomalies. Our study suggests that the ultramafic rocks represent two possible mantle sources(fertile and refractory). | Ajoy Dey M.Faruque Hussain Mrigendra N.Barman | 2018 | Geoscience Frontiers2018，9，2： | 7 |
| 2 | Multi-item fuzzy inventory model for deteriorating items in multi-outlet under single management显示文摘Multi-item inventory model with stock-dependent demand is developed in fuzzy environment.Items are deteriorated in constant rate and are sold from different outlets in the city under single management.Due to the impreciseness of different parameters,objectives as well as constraints are imprecise in nature.As optimization of fuzzy objectives as well as fuzzy constraints are not well defined,the model is formulated as a multi-objective chance constrained programming problem where optimistic/pessimistic return of the objectives with some degree of possibility/necessity are optimized and constraints are satisfied with some degree of necessity.The model is solved via Multi-Objective Genetic Algorithm(MOGA)when crisp equivalent of the problem is available.In other cases,fuzzy simulation process is proposed to check the constraints as well as to determine the optimistic/pessimistic return of the objectives.The model is illustrated with some numerical examples. | Ajoy Kumar Maiti | 2020 | Journal of Management Analytics2020，7，1： | 4 |
| 3 | Investigation of tuberculosis clusters in Dehradun city of India显示文摘Objective:To investigate the presence of statistically significant geographical clusters of tuberculosis(TB) using Geographical Information System and spatial scan statistics in Dehradun, India.Methods:The spatial scan statistic implemented with a software program,SaTScan v6.1, was used to test the presence of statistically significant spatial clusters of TB and to identify their approximate locations(P<0.05 for primary clusters and P<0.1 for secondary clusters). Geographical Information System was used for geographical analysis.Results:Significant high rate spatial clusters were identified in seven wards of the Dehradun Municipal area. Conclusions:There is sufficient evidence about the existence of statistically significant TB clusters in seven wards of Dehradun,India.The purely spatial scan statistics methodology used in this study has a potential use in surveillance of TB for detecting the true clusters of the disease. | Neeraj Tiwari Vineeta Kandpal Ajoy Tewari K.Ram Mohan Rao Tolia VS | 2010 | Asian Pacific Journal of Tropical Medicine2010，3，6： | 3 |
| 4 | Histological and histochemical changes in placenta of diabetic pregnant females and its comparision with normal placenta显示文摘 | Vineeta Tewari Ajoy Tewari Nikha Bhardwaj | 2011 | Asian Pacific Journal of Tropical Disease2011，，1： | 2 |
| 5 | Correlation of Brain Biomarker Neuron Specific Enolase (NSE) with Degree of Disability and Neurological Worsening in Cerebrovascular Stroke显示文摘 | Anuradha Bharosay Vivek Bharosay Meena Varma Kiran Saxena Ajoy Sodani Ravi Saxena | 2012 | Indian Journal of Clinical Biochemistry2012，，2： | 2 |
| 6 | Efficacy of natural biocide on control of microbial induced corrosion in oil pipelines mediated by Desulfovibrio vulgaris and Desulfovibrio gigas显示文摘We compared the efficacy of a natural biocide with four chemical tetrakishydroxymethyl phosphonium sulfonate,benzyl trimethyl ammonium chloride,and formaldehyde,glutaraldehyde,to control microbial induced corrosion in oil pipelines.The efficacy of biocides were monitored against Desulfovibrio vulgaris and Desulfovibrio gigas in experimental pipes by measuring cell counts,H 2 S production,Fe(Ⅱ) production,production of extracellular polymeric substances and structure of biofilm.The treatment with cow urine hadminimum planktonic cell counts of 3×10 2 CFU/mL as well as biofilm cell counts of 9×10 1 CFU/mL as compared with tetrakishydroxyl methyl phosphonium sulfonate,benzyl trimethyl ammonium chloride,formaldehyde and glutaraldehyde.Sulfide production was the lowest with cow urine (0.08 mmol/L),followed by tetrakishydroxymethyl phosphonium sulfonate 0.72 mmol/L.On day 90 of treatment,Fe(Ⅱ) production was also found to be the lowest with cow urine.The scanning electron microscopic studies indicated that the biofilm bacteria were killed by cow urine.These results demonstrate the cow urine mediated control of microbially induced corrosion,and this is indicative of its potential as a viable substitute of toxic biocides.To the best of our knowledge,this seems to be the first report which screens possible biocidal activity by cow urine as compared to the most common biocides which oil industry is currently using. | Meeta Lavania Priyangshu M.Sarma Ajoy K.Mandal Simrita Cheema Banwari Lal | 2011 | Journal of Environmental Sciences2011，23，8： | 2 |
| 7 | Kinetics of the enzymatic hydrolysis of cellulase显示文摘 | | 2001 | International Magazine for Textile Processing & Testing2001，3，1： | 1 |
| 8 | Performance of the horizon advanced lead-acid battery显示文摘 | JAY BENNY E DATTA Ajoy MATHEWS Charles | 1994 | Proceedings of the Annual Battery Conference Jan 11-131994，，： | 1 |
| 9 | Color image segmentation: rough- set theoretic approach 显示文摘 | Milind M Mushrif Ajoy K Ray | 2008 | Pattem Recognition Letters2008，29，： | 1 |
| 10 | Removal of arsenic from contaminated groundwater by membrane-integrated hybrid treatment system显示文摘 | Mou Sen Ajoy Manna Parimal Pal | 2010 | Journal Membrane of Science2010，354，： | 1 |
| 11 | Orthodontic assisted tooth eruption in a dentigerous cyst:A case report显示文摘 | Ritu D Ajoy R | 2004 | J Clin Padiat Dent2004，29，1： | 1 |
| 12 | 查看详情显示文摘 | Bamaprasad Bag* Ajoy Pal Org | | 0，，： | 1 |
| 13 | Randomized Clinical Study to Compare the Accuracy of Navigated and Non-Navigated Thoracic Pedicle Screws in Deformity Correction Surgeries显示文摘 | S Rajasekaran S Vidyadhara Perumal Ramesh Ajoy P. Shetty | 2007 | Spine2007，，： | 1 |
| 14 | Isolation and preparative purification of microcystin variants 显示文摘 | Sundar Ramanan James Tang Ajoy Velayudhan | 2000 | Chromatogr A2000，883，： | 1 |
| 15 | Cyclooxygenase-2-mediated angiogenesis in carrageenin-induced granulation tissue in rats显示文摘 | Ajoy K G Noriyasu H Hisae N | 2000 | J Pharmacol Exp Ther2000，295，2： | 1 |
| 16 | Critical junctures in the development of university high-tech spinout companies 显示文摘 | Ajoy Vohora Mike Wright Andylockett | 2004 | Research Policy2004，33，1： | 1 |
| 17 | Numerical analysis of planar optical waveguides using matrix approach 显示文摘 | AJOY K GHATAK | 1987 | Journal of Lightwave Technology1987，5，： | 1 |
| 18 | 查看详情显示文摘 | A Ajoy P Rungta | | 0，，05： | 1 |
| 19 | Hemangiomas and Vascular Malformations: Current Theory and Management显示文摘 | Gresham T. Richter Adva B. Friedman Ajoy M. Varghese | 2012 | International Journal of Pediatrics2012，，： | 1 |
| 20 | Facilitators and Barriers to Self-management of Type 2 Diabetes among Ur- ban African American Adults: Focus Group Findings显示文摘 | Chelbowy D O Hood S ]_aJoie A S | 2010 | Di- abetes Educ2010，36，6： | 1 |
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