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Co-Authors
- A. Singh
- P. K. Gangopadhyay
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- P. Chakrabarti
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- A. Acharyya
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- S. K. Bhaduri
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- L. K. Ghosh
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- S. Bhowmik
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Journals
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Ray, S.
- Why People do not Donate Blood? A Descriptive Study from an Urban Slum in India
Abstract Views :280 |
PDF Views:0
Authors
Affiliations
1 Armed Forces Medical College, Pune, IN
2 Dept of Community Medicine, Armed Forces Medical College, Solapur Road, Pune - 40, IN
1 Armed Forces Medical College, Pune, IN
2 Dept of Community Medicine, Armed Forces Medical College, Solapur Road, Pune - 40, IN
Source
The Indian Practitioner, Vol 68, No 6 (2015), Pagination: 73-75Abstract
No abstract.Keywords
Blood Donors, Blood Donation, Barriers.
- Metamorphic Belts in Singhbhum, Manbhum and Chhota Nagpur, E. India
Abstract Views :173 |
PDF Views:3
Authors
S. Ray
1,
P. K. Gangopadhyay
1
Affiliations
1 Department of Geology, Prisidency College, Calcutta, IN
1 Department of Geology, Prisidency College, Calcutta, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 12, No 3 (1971), Pagination: 286-294Abstract
Earlier studies on metamorphic zones in the metamorphic belts of Singhbhum, Manbhum and adjoining parts of Chhota Nagpur around longitude 86°E and between latitudes 22°45 Nand 23°40 N have been synthesised. Maps of Barrovian zones delineated by different workers in small areas have been coordinated into a regional zonal map.
Broad structural data of earlier workers plotted on the map depict that the pattern of extension of the zones over the whole region has a direct correlation with the plunges of the regional fold axes; higher grade zones occupy anticlinal cores with the lower grade ones succeeding them in the direction of the stratigraphic younging.
Granites, late syntectonic with tbe major folds on S" accompany most sillimanite zone outcrops. Andalusite occurs (i) across the chlorite to the kyanite zones along the southern fringes of the Dalma basic volcanics, and (ii) also sporadically. within sillimanite zone schists in association with sillimanite and kyanite.
- The Plutonic Concept
Abstract Views :201 |
PDF Views:2
Authors
S. Ray
1
Affiliations
1 Calcutta, IN
1 Calcutta, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 11, No 1 (1970), Pagination: 54-60Abstract
Most of the Archaean rocks in India have been commonly referred to as having originated at plutonic or hypometamorphic depths. Data exist to prove that the Archaean crusts were decidedly thin and hotter. Thus, metamorphism in the remote Archaean time took place under lower load pressure around 4-7 kb and under higher temperature around 650°C-750°C. As the crust thickened metamorphism in depth took place under higher pressures and lower temperatures.The Khondalite tract along the East Coast of India has mineralogical, petrological and structural singularity to prove that it was metamorphosed under the former set of P-T conditions.
This khondalite belt shows a trend of 'facies' variation which is strongly contrasted with the variation in Hietanen's Barrovian or other types. A new 'facies series' and metamorphic' type', viz, 'Khondalite type' is hence proposed to be added to Hietanen's eight 'types' of metamorphism.
- Structure of the Type Charnockite Area Near Madras
Abstract Views :188 |
PDF Views:2
Authors
Affiliations
1 Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur, IN
1 Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 11, No 3 (1970), Pagination: 265-272Abstract
In the type area of the charnockites, south of the city of Madras, foliation attitudes of marker horizons of leptynites and of basic granulite bands trace a map pattern characterized by four-fold hinges. The overall structure of the area is brought out by the swerve of axial planes of these folds from NNE in south-west through E-W in the central part to N-S in southern part in a broad sweep. The folding is noncylindrical; and a probable structural interpretation, as advanced here, envisages a series of tight isoclinal folds on which a folding around a N-S axial plane has been superposed.- A Study on Palaeocurrent in Western Vindhyan Basin
Abstract Views :187 |
PDF Views:132
Authors
S. Ray
1,
P. Chakrabarti
2
Affiliations
1 Department of Geology, G. C. College, Silchar (Assam), IN
2 Department of Geology, Presidency College, Calcutta, IN
1 Department of Geology, G. C. College, Silchar (Assam), IN
2 Department of Geology, Presidency College, Calcutta, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 17, No 2 (1976), Pagination: 272-274Abstract
During the Upper Vindhyan times there was a northwesterly flow of current prevailing throughout the Great Vindhyan Basin of Northern India.Full Text
- Design and Optimization of Famotidine Multiparticulate System through Mixture Experimental Design - a Novel Approach
Abstract Views :186 |
PDF Views:78
Authors
Affiliations
1 Dept. of Pharmaceutics, Krupanidhi College of Pharmacy, 12/1, Chikkabellandur, Carmelram Post, Bangalore- 560 035, IN
2 Dept. of Pharmaceutics, M. M. U. College of Pharmacy, Ramanagaram - 561 511, Karnataka, IN
1 Dept. of Pharmaceutics, Krupanidhi College of Pharmacy, 12/1, Chikkabellandur, Carmelram Post, Bangalore- 560 035, IN
2 Dept. of Pharmaceutics, M. M. U. College of Pharmacy, Ramanagaram - 561 511, Karnataka, IN
Source
Journal of Pharmaceutical Research, Vol 8, No 4 (2009), Pagination: 192-197Abstract
The objective of this study was to develop a multiparticulate dosage form and optimise its release profile through a novel approach employing simplex mixture design. Microparticles of Famotidine were prepared with Eudragitâ RS100, RL100 and Ethyl cellulose separately using 1:4 drug polymer ratios by emulsification solvent evaporation technique. The three master formulations were characterised for different physicochemical properties and their release profile was studied. Statistical modelling and numerical optimisation was done to predict blends of component microparticles of three polymers, which gave the desired release profile. Experimental validation of the response parameters showed only around 5% error in prediction. Thus, an accurate, economical and time saving methodology could be devised for easy and reproducible development and optimisation of multiparticulate sustained release product.Keywords
Microparticles, Famotidine, Release optimization, Mixture Design.Full Text
- Proterozoic Rock Suites along South Purulia Shear Zone, Eastern India: Evidence for Rift-Related Setting
Abstract Views :323 |
PDF Views:3
Authors
Affiliations
1 Geological Survey of India, 27 Jawaharlal Nehru Road, Kolkata - 700 016, IN
2 Geological Survey of India, Op WB-SK-AN, Eastern Region, DK-6, Salt Lake, Kolkata - 700 091, IN
3 Geological Survey of India, Flat#4, H/31M, BP Township, Kolkata - 700 094, IN
4 Geological Survey of India, Chemical Division, Eastern Region, DK-6, Salt Lake, Kolkata - 700 091, IN
1 Geological Survey of India, 27 Jawaharlal Nehru Road, Kolkata - 700 016, IN
2 Geological Survey of India, Op WB-SK-AN, Eastern Region, DK-6, Salt Lake, Kolkata - 700 091, IN
3 Geological Survey of India, Flat#4, H/31M, BP Township, Kolkata - 700 094, IN
4 Geological Survey of India, Chemical Division, Eastern Region, DK-6, Salt Lake, Kolkata - 700 091, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 68, No 6 (2006), Pagination: 1069-1086Abstract
The South Purulia Shear Zone (SPSZ) is a part of the conspicuous -E-W to -ESE-WNW trending Tamar-Porapahar lineament. This borders the Meso-Proterozoic greenschist facies lithopackage of the Singhbhum Group (SG) comprising metasedimentaries, felsic volcanics, mafites/Ultramafites, granitoids, and alkaline/Carbonatite suite of rocks bounded by the Chhotanagpur Gneissic Complex (CGC) attaining amphibolite to granulite facies in the north CGC presumably had certatn loci of crustal weakness where pre-Rift crustal sagging led to the deposition of supracrustal rocks. Intracratonic rifting had then initiated in those pre-Existing zones of crustal weakness and troughs of the resident crust. The intracratonic basin was covered by huge volume of the felsic volcanics represented by layered tuffaceous volcaniclastic, felsic ignimbrites, crystal-Vitric tuff and tuffaceous phyllite. Meta-Greywacke has been considered as epiclastic deposit derived from felsic volcanics. The nature of welding, absence of phenocrysts typical of lava flows, parallel aligned lenticular pumice fragments exhibiting pumice-Lenticle foliation, fiamme and eutaxitic fabric and petrochemistry could imply that the felsic igniimbrite was close to welded pumiceous ash-Flow tuff having dacitic to rhyodacitic composition. Mafic-ultramafic suites of rocks in close proximity to felsic volcanics suggest a bimodal character of magmatic episode in the area Bands and lenses of tourmalinite disposed along the contact of the CGC and the SG, argued to be of volcanogenic sedimentary origin, possibly demarcates the rupture locales of a rift. The alkali-Feldspar granite(± richterite, ± aegirine-augite), syenite and carbonatites suggest tapping of deeper fractures in the rifted basin. This was coupled with the presence of granite plutonism in the setting. Geochemical signatures imply that felsic volcanics are chiefly of dacitic composition with strong LREE enrichment and narrow range of fractionation while the metabasic rock chemistry scatter in basalt to basaltic andesite field. Trace element data further corroborate 'volcanic arc granite', ' Within plate granite' and 'continental arc granite' composition for the felsic volcanics. The basin was then subscribed to compressional regime where ductile shear zones developed syn to post kinematic to F1 with the northern block (CGC) thrusting over the southern block (SG) on northerly dipping planes. Thus, an entire sequence of rifting, tourmalinite emplacement, felsic volcanism, mafic extrusion, granite plutonism, syenite/Carbonatite emplacement and sedimentation of pelites/Epiclastics during and after opening of the basin in an intracratonic setting is demonstrated. Subsequently, development of the shear zone (SPSZ) took place over the area at the close of the basin.Keywords
Ignimbrite, Dacite, Tourmalinite, Rift, Shear, Petrography, Geochemistry, Purulia, West Bengal.- Disconnect in Food Safety Practices in Rural Households: Personal Hygiene and its Impact on Hand Cleanliness and Prevalence of Diarrhoea
Abstract Views :187 |
PDF Views:0
Authors
Affiliations
1 Department of Community Medicine, Armed Forces Medical College, Pune, Maharashtra, IN
1 Department of Community Medicine, Armed Forces Medical College, Pune, Maharashtra, IN
Source
The Indian Practitioner, Vol 68, No 12 (2015), Pagination: 28-30Abstract
No Abstract.- Design, Evaluation and Statistical Optimization of Diazepam Loaded Controlled Release Micropellets
Abstract Views :185 |
PDF Views:80
Authors
Affiliations
1 Dept. of Pharmaceutical Technology, Jadavpur University, Kolkata-700 032, IN
2 Oxford College of Pharmacy, 6/9, 1st Cross, Begur Road, Hongasandra, Bangalore-560 068, IN
3 Krupanidhi College of Pharmacy, #12/1, Chikkabellandur, Carmelram Post, Bangalore-560 035, IN
1 Dept. of Pharmaceutical Technology, Jadavpur University, Kolkata-700 032, IN
2 Oxford College of Pharmacy, 6/9, 1st Cross, Begur Road, Hongasandra, Bangalore-560 068, IN
3 Krupanidhi College of Pharmacy, #12/1, Chikkabellandur, Carmelram Post, Bangalore-560 035, IN
Source
Journal of Pharmaceutical Research, Vol 9, No 3 (2010), Pagination: 141-147Abstract
This work aims at designing and evaluating a Extended release dosage form of Diazepam using Alginate- Eudragit RS 30D as the matrix-forming polymer employing the Ionotropic Gelation technique of micropellletization. The product was characterized by physicochemical parameters such as yield, drug entrapment efficiency, particle size, surface topography, granulometric study, loose surface crystal study, drug-excipient compatibility and in vitro release. The controlled release profile was optimized using a factorial design for achieving the correct blend of microparticles that closely matches the target release profile. The study illustrates the utility and advantage of designed experimentation in controlled drug delivery research.Keywords
Diazepam, Extended Release, Micropellets, Factorial Design, OptimizationFull Text
- Study of Fusion Zone of Weldments under Manual Metal Arc Welding
Abstract Views :157 |
PDF Views:0
Authors
Affiliations
1 Bengal Engineering and Science University, Howrah-3, IN
1 Bengal Engineering and Science University, Howrah-3, IN
Source
Journal of the Association of Engineers, India, Vol 76, No 1-4 (2006), Pagination: 24-31Abstract
Metallurgy of welding is very important because the overall mechanical porperties of weldment are determined by the characteristic properties of the individual microstructure present in the weld deposit. This paper deals with study of the metallurgy of fusion zone in regard to carbon content and its effect on hardness.- Studies on the Effects of Welding Speed and Welding Heat on Depth of Heat Affected Zone and Penetration in Single Run Submerged Arc Automatic Square Butt Welding
Abstract Views :163 |
PDF Views:0
Authors
S. Bhowmik
1,
S. Ray
2
Affiliations
1 B.E. College(D.U), Howrah-711103, IN
2 B. E. & SC. University, Howrah-711103, IN
1 B.E. College(D.U), Howrah-711103, IN
2 B. E. & SC. University, Howrah-711103, IN
Source
Journal of the Association of Engineers, India, Vol 75, No 1-4 (2005), Pagination: 17-27Abstract
This paper deals with study of the effects of welding speed and welding heat on depth of heat affected zone and penetration in single run submerged arc automatic square butt welding. From the results it is established that the present work is an attempt to identify optimized processing parameters for successful welding in SAAW method.- Study on Influence of Welding Parameters on Hardness of Welds in Submerged Arc Butt Welding
Abstract Views :141 |
PDF Views:0
Authors
Affiliations
1 B.E. College (D.U.), How-3, IN
2 B.E. College (D.U.), Howrah-711103, IN
1 B.E. College (D.U.), How-3, IN
2 B.E. College (D.U.), Howrah-711103, IN
Source
Journal of the Association of Engineers, India, Vol 72, No 1-4 (2002), Pagination: 3-8Abstract
In the present investigation an attempt has been made to study the effects of welding parameters on hardness of weld deposited by submerged arc welding.
Hardness of the welds have been studied with respect to the variation in welding voltage, current and speed.
It has been found that for a definite combination of the welding parameters maximum hardness is achievable.
- Soft Set and Soft Group from Classical View Point
Abstract Views :271 |
PDF Views:2
Authors
Affiliations
1 Department of Mathematics, Visva-Bharati University, Santiniketan - 731235, West Bengal, IN
1 Department of Mathematics, Visva-Bharati University, Santiniketan - 731235, West Bengal, IN
Source
The Journal of the Indian Mathematical Society, Vol 84, No 3-4 (2017), Pagination: 273-286Abstract
It is shown that a soft set can be represented as a crisp set of soft elements and a soft group as a ordinary group of soft elements. From this view point it is immediate that soft group share the properties of ordinary group. Also using soft elements the definitions of soft co-sets, soft homomorphism and cyclic soft groups are presented and their properties are studied.Keywords
Soft Element, Soft Group, Soft Homomorphism, Soft Quotient Group.References
- M.Akram, S.Shahzadi, Neutrosophic Soft graphss with application,, Journal of Intelligence and Fuzzy Systems, (2007), 2726-2735.
- H. Aktas and N. Cagman, Soft sets and soft groups, Information Sciences 177 (2007), 27262735.
- H. Aktas and F. Ozlu, Cyclic Soft Groups and Their Applications on Groups, Scientic World Journal (2014).
- M.I. Ali, F. Feng, X.Y. Liu, W.K. Min and M. Shabir, On some new operations in soft set theory, Computers and Mathematics with Applications, (2008), 2621-2628.
- Muhammad Aslam, Saqib Mazher Qurashi, Some contributions to soft groups, Annals of Fuzzy Mathematics and Informatics 4 (2012), 177-195.
- A. Aygunoiglu and H. Aygun, Introduction to fuzzy soft groups, Computers and Mathematics with Applications 58 (2009), 1279-1286.
- D. Chen, E. C. C. Tsang, D. S. Yeung, and X. Wang, The parameterization reduction of soft sets and its applications, Computers and Mathematics with Applications 49 (2005), 757-763.
- Feng Feng, Xiaoyan Liu, Violeta Leoreanu-Fotea, Young Bae Jun , Soft sets and soft rough sets, Information Sciences 181 (2011), 1125-1137.
- Cheng-Fu Yang, A note on Soft Set Theory, Computers and Mathematics with Applications,45 (2003), 555-562.
- Y.B.Jun, C.H.Park Applications of soft sets in ideal theory of BCK/BCI-algebra, Information sciences 178 (2008), 2466-2475.
- Y.B.Jun, C.H.Park Applications of soft sets in Hilbert algebra, Iranian Journal Fuzzy Systems, 6 (2009), 55-86.
- Y.B.Jun, K.J.Lee, A.Khan, Soft ordered semigroups, Mathematical Logic Quarterly, 56 (2010), 42-50.
- Y.B.Jun, K.J.Lee, C.H.Park, Soft Set Theory applied to commutative ideals, in BCK algebras, Journal of Applied Mathematics Informatices, 26 (2008), 707-720.
- Y.B.Jun, K.J.Lee, C.H.Park, Soft Set Theory applied to ideal in d-algebra,, Computers and Mathematics with Applications 57 (2009), 367-378.
- Z.Li, N.Xie, G.Wen, Soft covering and their parameter reduction, Applied Soft Computing, 31 (2015), 48-60.
- P.K.Maji, R. Biswas and A.R.Roy, Soft Set Theory, Computers and mathematics with Applications, 45 (2003), 555-562.
- P. K. Maji,A. R. Roy, and R. Biswas, An application of soft sets in a decision making problem, Computers and Mathematics with Applications 44 (2002), 1077-1083.
- D. Molodtsov, Soft set theory - First results, Computers and mathematics with Applications, 37(4/5) (1999), 19-31.
- Sk Nazmul and Syamal Kumar Samanta, Soft topological soft groups, Mathematical sciences, Original Research, Open Access (2012).
- Z. Pawlak, Hard set and Soft set, ICS Research Report, Institute of Computer Sciences, Poland, (1994).
- Effects of Heat Input and Nature of Impact Fracture in the Heat Affected Zones in Arc Welding
Abstract Views :179 |
PDF Views:2
Authors
Affiliations
1 Department of Mechanical Engineering, B. E. College, Howrah-711103, IN
1 Department of Mechanical Engineering, B. E. College, Howrah-711103, IN
Source
Journal of the Association of Engineers, India, Vol 66, No 1-4 (1992), Pagination: 24-33Abstract
In the present study an attempt has been made to investigate the effects of welding beat on some of the mechanical as well as metalilurgical properties of weldments in the heat affected zones.
To achieve the objectives five welded samples fabricated from hot rolled structural steels (carbon varying from 0.15% to 0.22%) plates (10 mm thick) have been experimented with. The samples are of single V-butt joint, manually arc welded, using multiple runs.
Using polynomial regression analysis the best-fit equations have been obtained to find the inter-relationships of :
1) hardness (F) with grain size (S), impact energy value (E), heat input per unit length of weld (H) and percentage carbon (C).
ii) impact energy value (E) with heat input per unit length of weld (H) and percentage carbon (C).
iii) grain size (S)with heat input per unit length of weld (H).
iv) percentage carbon (G) with heat input pet unit length of weld (H).
- Spark Erosion Machine : A New Endeavour in Machining Methods
Abstract Views :151 |
PDF Views:1
Authors
Affiliations
1 Department of Mechanical Engineering, B. E. College, Howrah-3, IN
2 Department of Mechanical Engineering, B. E. College, Howrah-3, IN
1 Department of Mechanical Engineering, B. E. College, Howrah-3, IN
2 Department of Mechanical Engineering, B. E. College, Howrah-3, IN
Source
Journal of the Association of Engineers, India, Vol 63, No 1-4 (1988), Pagination: 28-31Abstract
A Spark Erosion Machine from an indegineous design and in house resources has been designed and fabricated. The methodology has been explained in the present paper.- Computer-Based Study on the Estimation of Residual Stresses
Abstract Views :153 |
PDF Views:2
Authors
S. Ray
1,
M. Bhattacharyya
2
Affiliations
1 Mech. Engg. of B. E. College, Shibpur, IN
2 Mech. Engg. of Jadavpur University, Calcutta, IN
1 Mech. Engg. of B. E. College, Shibpur, IN
2 Mech. Engg. of Jadavpur University, Calcutta, IN
Source
Journal of the Association of Engineers, India, Vol 60, No 1-4 (1985), Pagination: 17-22Abstract
In the present study an attempt has been made to find out some correlation between the residual stresses with various welding parameters using dimensional analysis. The equations thus derived when used for finding out the residual stresses yield results which are in reasonable agreement with the measured ones for all practical purposes.- Residual Stress in Weldments : Feasibility of its Determination by the Non-Destructive Method Based on Directional Hardness
Abstract Views :149 |
PDF Views:2
Authors
Affiliations
1 Jadavpur University, IN
2 Jadavpur University, Calcutta, IN
3 Bengal Engineering College, Sibpore, Howrah, IN
1 Jadavpur University, IN
2 Jadavpur University, Calcutta, IN
3 Bengal Engineering College, Sibpore, Howrah, IN
Source
Journal of the Association of Engineers, India, Vol 59, No 1-4 (1984), Pagination: 25-28Abstract
In the present work an attempt has been made to determine residual stresses in weldments both by a non destructive non-conventional method based on directional hardness (indentation method) testing and by the destructive conventional method of stress relaxation. Residual stresses thus obtained in both the methods are compared; the causes of variation of stresses are explained.- Design, Construction and Calibration of an Accelerometer
Abstract Views :155 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, B. E. College, Howrah-3, West Bengal, IN
2 Deptt. of Mechanical Engineering, B. E. College, Howrah-3, West Bengal, IN
1 Department of Mechanical Engineering, B. E. College, Howrah-3, West Bengal, IN
2 Deptt. of Mechanical Engineering, B. E. College, Howrah-3, West Bengal, IN
Source
Journal of the Association of Engineers, India, Vol 51, No 4 (1976), Pagination: 51-58Abstract
This paper presents the design, construction and calibration of a Bonded-type of Strain-gauged Accelerometer.- Magnesium Oxide Content in Portland Blast-Furnace Slag Cement
Abstract Views :141 |
PDF Views:0
Authors
Affiliations
1 Central Engineering and Design Bureau, Hindustan Steel Ltd., Bhilai, IN
2 I. I. T., Kharagpur, IN
1 Central Engineering and Design Bureau, Hindustan Steel Ltd., Bhilai, IN
2 I. I. T., Kharagpur, IN
Source
Journal of the Association of Engineers, India, Vol 46, No 3 (1971), Pagination: 122-124Abstract
The deleterious effect of delayed expansion of MgO present in Portland Cement led to the introduction of limits for total MgO content in cement specifications, all over the world. In manufacturing Portland Cement with limiting MgO content of 6.0% as per Indian Standard, only limestone of high quality (low magnesia) can be used. But in our country the reserve of low magnesia limestone is limited and hence for proper quality of limestone raising for cement production, the quarry operations have to be done with much care involving rejection of dolomite stones and hence the cost goes up.- Investigation Into Optimal Mechanical Properties for Arc Welded Butt Joints
Abstract Views :186 |
PDF Views:4
Authors
S. Ray
1
Affiliations
1 Mechanical Engineering Department, Bengal Engineering College (D.U.), Howrah - 711 103, IN
1 Mechanical Engineering Department, Bengal Engineering College (D.U.), Howrah - 711 103, IN