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Nageswara Rao, K.
- Coastal Morphodynamics and Asymmetric Development of the Godavari Delta: Implications to Facies Architecture and Reservoir Heterogeneity
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Authors
Affiliations
1 Department of Geo-Engineering, Andhra University, Visakhapatnam - 530 003, IN
1 Department of Geo-Engineering, Andhra University, Visakhapatnam - 530 003, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 67, No Spl Iss 5 (2006), Pagination: 609-617Abstract
Facies reconstruction and reservoir modeling of ancient deltas entail possibilities of over, or Under Estimation of reservoir distribution and quality, since such studies are often based on Drill-Hole data from a few locations, which could be potentially unrepresentative of the subsurface conditions. Recent studies indicate significant asymmetries in sedimentation on both sides of the river mouths in the Wave-Influenced systems. The present study is an attempt to analyse the asymmetry in the depositional processes and its implications to the possible reservoir heterogeneity of the Godavari delta.The Godavari delta on the east coast of India exhibits Wave-Influenced morphologies by the presence of a number of spits and barrier islands at its two active distributary lobes of the Gautami and the Vasishta. The most prominent of them is the 21-km-long Kakinada spit, which in its initial stages in the late nineteenth century had even deflected the Gautami course. As a result, the Gautami has built an extensive bayhead delta behind the spit. The 1965 satellite imagery showed several other smaller spits, especially at the southwestern side of the Gautami mouth and the northeastern side of the Vasishta, whereas barrier islands that are welded to the main coast by the backbarrier mudflats occur on the other sides of the mouths.
A comparison of a series of satellite imagery showed that the 15-km-long shoreline in the central part of the delta in between the Gautami and the Vasishta lobes retreated landward by about 500 m during the past four decades. The material eroded from this part, presumably, drifted in both the Directions - Northeastward toward the Gautami and southwestward toward the Vasishta. As the river effluent plumes act like groynes, the material drifted alongshore from the central part toward both the lobes is deposited at the respective updrift sides of the distibutary mouths forming into spits, whereas the River-Borne sediments are deposited at the downdrift sides, initially as bars that emerge as barrier islands, followed by the Backbarrier-Bay-Filliing with riverine muds. The presence of closely spaced beach ridges on the updrift side, and wide mudflats interspersed with narrow sand bodies on the downdift side, that especially characterize the Vassihta. Iobe, indicate asymmetry of the sedimentation processes and facies architecture. The likely occurrence of better quality reservoir facies on the updrift side than on the downdrift side, besides the presumable Shore-Parallel than Shore-Normal prodelta clinoforms of the bayhead delta in the Kakinada Bay reflect the possible reservoir heterogeneity in the Godavari sedimentary basin, considering that similar asymmetries possibly prevailed in the geological past.
Keywords
Coastal Morphodynamics, Longshore Drift, Delta Asymmetry, Godavari Delta.
- Morphostratigraphy and Evolution of the Quaternary 'Red Sands' near Bhimunipatnam, East Coast of India
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Authors
Affiliations
1 Department of Geo-Engineering, Andhra University, Visakhapatnam - 530 003, IN
2 Department of Geography, Mizoram University, Aizawal - 796 001, IN
3 Department of Anthropology, Andhra University, Visakhapatnam - 530 003, IN
1 Department of Geo-Engineering, Andhra University, Visakhapatnam - 530 003, IN
2 Department of Geography, Mizoram University, Aizawal - 796 001, IN
3 Department of Anthropology, Andhra University, Visakhapatnam - 530 003, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 68, No 5 (2006), Pagination: 857-873Abstract
Field investigations in the intensely gullied coastal 'red sands' near Bhimunipatnam along the east coast of India in northern coastal Andhra Pradesh revealed four distinctly different sand units namely, (i) the lower coarse to medium grained yellow sand, (ii) medium to fine grained Reddish-Brown concretion bearing sand, (iii) Fine-Grained Black-Red sand and (IV) the upper Fine-Grained light yellow sand, over variable thickness up to 30 m. In addition, the study brought to light some of the hitherto unreported duricrust layers and pebble beds that occur in between and within these sandy horizons, and the knick points and minor but significant waterfalls caused by these layers at various locations along the gully courses. The nature of the materials of the different sand units and the positions of duricrust and pebble beds suggest a polygenetic and Multi-Cyclic evolution involving fluvial, Fluvio-Marine and aeolian processes, complicated by sea level changes, weathering and neotectonics. Geomorphic evidences like a wave-cut terrace, a valley-in-valley form and a spring in a gully stream that appear to be oriented along one of the major linearments that cross-cross the area, besides the presence of pebble beds now even at 38 to 42 m elevations much above the bed levels of their possible source streams nearby, suggest tectonic upliftment of the area probably during the later stages of deposition in the late Pleistocene to Holocene epochs. The main objective of the paper is to present a comprehensive evolutionary picture of the various Quaternary sediment units along with the geomorphic history of the area.Keywords
Quaternary Red Sands, Badland Topography, Morphostratigraphy, Evolution, Bhimunipatnam Coast, Visakhapatnam District, Andhra Pradesh.- CORONA Satellite Photographs - A New (Old) Tool for Earth Scientists
Abstract Views :208 |
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Authors
Affiliations
1 Department of Geo-Engineering, Andhra University, Visakhapatnam - 530 003, IN
1 Department of Geo-Engineering, Andhra University, Visakhapatnam - 530 003, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 73, No 3 (2009), Pagination: 425-429Abstract
No Abstract.References
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- DASHORA, A., LOHANI, B. and MALIK, J.N. (2007) A repository of earth resource information - CORONA satellite programme. Curr. Sci., v. 92, pp.926-932.
- DAVID, L. (2004) The genesis payload: just how dangerous are its contents. http://www.space.com/missionlaunches/mystery_monday_040830.html
- GALIATSATOS, N. (2004) Assessment of CORONA series of satellite imagery for landscape archaeology: a case study of Orontes valley Syria, (Ph.D. thesis), Univ. of Durham, UK). http://www.dur.ac.uk/nikolaos.galiatsatos/PhD_thesis.pdf
- GALIATSATOS, N., DONOGHUE, D.N.M. and PHILIP, G. (2005) An evaluation of the stereoscopic capabilities of CORONA spy satellite image data. http://www.ipi.uni-hannover.de/html/aktivitaeten/EARSeL Workshop2005_Paper/Galiatsatos. pdf
- KUMAHARA, Y. and NAKATA, T. (2001) Application of the CORONA satellite photography to geomorphological studies in developing regions. Annals of Research Centre for Regional Geography, v.9, pp.129-155
- NAGESWARA RAO, K., SADAKATA, N., HEMA MALINI, B. SARMA, V.V.L.N., TAKAYASU, K. and KAWASE, M. (2003) Reconstruction of the Late Holocene progradation of the Godavari delta, India: A preliminary study. Trans. Japanese Geomorph. Union, v.24, pp.295-309.
- NAGESWARA RAO, K. (2006) Coastal morphodynamics and asymmetric development of the Godavari delta: implications to facies architecture and reservoir heterogeneity. Jour. Geol. Soc. India, v.67, pp.609-617.
- SCHMIDT, M., GOOSSENS, R. and MENZ, G. (2001) Processing techniques for CORONA satellite images in order to create digital elevation models (DEM). www.rsrg.uni-bonn.de/∼michael/paper/Schmidt_etal_paris2001.pdf.
- WIKIPEDIA (2008) CORONA. http://en.wikipedia.org/wiki/Corona_(satellite)
- Effective Implementation of Agile Practices – A Collaborative and Innovative Framework
Abstract Views :160 |
PDF Views:3
Authors
Affiliations
1 Velagapudi Ramakrishna Siddhartha Engineering College in the Department of Computer Applications, Vijayawada – 520 007, IN
2 Prasad V. Potluri Siddhartha Institute of Technology in the Department of Computer Science and Engineering, Vijayawada – 520 007, IN
1 Velagapudi Ramakrishna Siddhartha Engineering College in the Department of Computer Applications, Vijayawada – 520 007, IN
2 Prasad V. Potluri Siddhartha Institute of Technology in the Department of Computer Science and Engineering, Vijayawada – 520 007, IN
Source
Software Engineering, Vol 2, No 9 (2010), Pagination: 191-196Abstract
This paper introduces a collaborative and innovative framework of agile software development that leads to a software product that proves in practice to be of much higher quality than what traditional software teams usually deliver. Agile methods place more emphasis on people, interaction, working software, customer collaboration, and change rather than on tools, processes contracts and plans. A number of new methodologies claiming these agile principles have been introduced. Each method has its own active research and user communities.Keywords
Communication, Continuous Integration, Framework, Metrics.- A Novel Clustering Data Based on K-Means
Abstract Views :210 |
PDF Views:2
Authors
Affiliations
1 Department of CSE, SBCE, Khammam, IN
2 Department of CSE, Mother Teresa Institute of Science and Technology, Sattupally, IN
3 Department of CSE, KITS, Khammam, IN
1 Department of CSE, SBCE, Khammam, IN
2 Department of CSE, Mother Teresa Institute of Science and Technology, Sattupally, IN
3 Department of CSE, KITS, Khammam, IN
Source
Data Mining and Knowledge Engineering, Vol 4, No 6 (2012), Pagination: 303-308Abstract
In this paper a new algorithm for clustering symbolic data based on K-Means algorithm is proposed. This new algorithm allows the data entry and the membership degree to be intervals. In our approach, we propose a dynamic document clustering based on structured MARDL technique. In this method, each document is assigned a weight by term frequency and inverse document frequency method using cosine similarity measure and then, the documents are first separated into clusters using k-Means method. The largest cluster will split and forms two sub clusters and this step would be repeated for many times until clusters formed are with high similarity. In addition, our approach tends to capture the intrinsic structure of a data set, e.g., the number of clusters. Simulation results demonstrate that our approach yields favorite results for a variety of temporal data clustering tasks. As our weighted cluster ensemble algorithm can combine any input partitions to generate a clustering ensemble, we also investigate its limitation by formal analysis and empirical studies.Keywords
Clustering, K-Means, MARDAL.- Recent Morphological Changes in the Penner Estuary, East Coast of India
Abstract Views :182 |
PDF Views:112
Authors
Affiliations
1 Delta Studies Institute, Andhra University, Sivajipalem, Visakhapatnam - 530 017, IN
2 Dept of Geo-Engineering, Andhra University, Visakhapatnam - 530 003, IN
1 Delta Studies Institute, Andhra University, Sivajipalem, Visakhapatnam - 530 017, IN
2 Dept of Geo-Engineering, Andhra University, Visakhapatnam - 530 003, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 60, No 5 (2002), Pagination: 563-565Abstract
Study of sequential toposheets coupled with recent field observations revealed that Penner river has progressively shifted its mouth towards north during the past 80 years. This may partly be due to neotectonic activity and partly due to the development of new features at the estuary mouth. The newly formed distributary is likely to be widened further in the near future and possibly affect the coastal villages adjacent to its course.Full Text
- Effective Independent Quality Assessment Using IVandV
Abstract Views :234 |
PDF Views:124
Authors
Affiliations
1 Department of Computer Applications, V.R. Siddhartha Engineering College, Kanuru, Vijayawada-7, IN
2 Department of Computer Science and Engineering, P.V.P. Siddhartha Institute of Technology, Kanuru, Vijayawada-7, IN
1 Department of Computer Applications, V.R. Siddhartha Engineering College, Kanuru, Vijayawada-7, IN
2 Department of Computer Science and Engineering, P.V.P. Siddhartha Institute of Technology, Kanuru, Vijayawada-7, IN
Source
AIRCC's International Journal of Computer Science and Information Technology, Vol 3, No 3 (2011), Pagination: 188-198Abstract
Software is critical to the effectiveness, competitiveness, and survival of any organization. Unexpected behavior or critical problems that bring operations to an idle are just not an option. Effective oversight is critical to good project management and as it is important for the project manager to ensure that the project is on track and to be completed within the estimated schedule and cost by maintaining the quality of the deliverables. This paper describes the role of Independent Verification and Validation (IV&V) integrated into the software development life cycle in bringing down company's cost to develop software products, improve the quality of developed systems and save money throughout the system life cycle by detecting and identifying risk elements throughout the entire software development process thus allowing project and quality assurance managers to respond quickly in order to mitigate risks earlier in the product development life cycle, with more effectiveness, and with less impact on cost and schedule.Keywords
SQA, IVandV, verification, validation, Independence, Project Management, Risk Management Approach.Full Text