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Co-Authors
- V. Subrahmanyam
- L. V. Subba Raju
- K. V. L. N. S. Sarma
- G. P. S. Murty
- K. S. Krishna
- A. K. Chaubey
- M. M. Malleswara Rao
- S. L. Narayana
- B. T. V. Seshavataram
- B. Sunitha
- G. Sujatha
- B. Girish
- B. Raj Kiran
- G. Gayathri
- K. V. Harshanjali
- K. Rupavathi
- D. Vijay Kumar
- G. Senthil Kumaran
- A. Carolin Rathina Kumari
- M. Naga Jyothi
- G. Muralee Krishna
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Ramana, M. V.
- Marine Magnetic Profiles from the Direction Bank to the Kori Bank, Western Continental Shelf of India
Abstract Views :194 |
PDF Views:2
Authors
Affiliations
1 National Institute of Oceanography, Dona Paula, Goa 403 004, IN
1 National Institute of Oceanography, Dona Paula, Goa 403 004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 27, No 4 (1986), Pagination: 352-358Abstract
Total magnetic field intensity measurements along two parallel NW-SE tracks from the Direction Bank to the Kori Bank show correlatable magnetic anomalies. High frequency positive anomalies observed northwest of Kathiawar coast terminating at about 21°N are interpreted due to the magnetic basement i.e, basalts at a depth of about 2 km. A low amplitude negative anomaly observed around 21°N (between 69°E and 70°E) may be due to the westward extension of the Narmada-Son lineament. Absence of significant anomalies south of these high frequency anomalies may be due to thin Traps or greater thickness of sediments. High amplitude and broad wavelength negative anomaly observed off Bombay (l9°N, 71.5°E) is interpreted as due to contact or faulting of Precambrian formations and Deccan Traps.- Application of Inversion Techniques on Marine Magnetic Data - Andaman Shelf
Abstract Views :214 |
PDF Views:1
Authors
K. V. L. N. S. Sarma
1,
M. V. Ramana
1,
G. P. S. Murty
1,
V. Subrahmanyam
1,
K. S. Krishna
1,
A. K. Chaubey
1,
M. M. Malleswara Rao
2,
S. L. Narayana
2
Affiliations
1 National Institute of Oceanography, Donapaula, Goa - 403004, IN
2 National Institute of Oceanography, Regional Centre, Visakhapatnam-530023, IN
1 National Institute of Oceanography, Donapaula, Goa - 403004, IN
2 National Institute of Oceanography, Regional Centre, Visakhapatnam-530023, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 44, No 1 (1994), Pagination: 73-78Abstract
Analysis of the total intensity magnetic data over the western Andaman shelf has been carried out for determination of depth to magnetic basement using the Analytical signal and Werner Deconvolution methods. The basement depths are refined with optimisation procedure of iteration modelling. The depths Derived from these methods match well with the acoustic basement mapped by the seismic reflection survey across the Andaman shelf. The interpretation by these methods demonstrates the rapid utility in virgin areas forderiving the first order basement configurationquickly. The gradual slope of the basement from west to east on the western Andaman shelf may be attributed to the ongoing process of the subduction of the older crust in the Sunda Trough.Keywords
Marine Geophysics, Andaman Sea.- Marine Magnetic Studies Over a Lost Wellhead in Palk Bay, Cauvery Basin, India
Abstract Views :213 |
PDF Views:3
Authors
Affiliations
1 National Institute of Oceanography, Donapaula, Goa-403 004, IN
2 Oil and Natural Gas Commission, Sire Mansion, Mount Road, Madras-600 006, IN
1 National Institute of Oceanography, Donapaula, Goa-403 004, IN
2 Oil and Natural Gas Commission, Sire Mansion, Mount Road, Madras-600 006, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 45, No 2 (1995), Pagination: 201-208Abstract
Close grid masine magnetic surveys in the vicinity of a drill well site PH 9-1 in Palk Ray revealed that the area is characterized by smooth magnetic field except for a local anomaly caused by a lost wellhead. The smooth magnetic field is attributed to the deep burial of Precambrian granitic basement devoid of any charnockite intrusions. The seismic reflection records of the study area show >3200 m thick sediments over the basement.Keywords
Marine Geology, Geophysics, Palk Bay, Cauvery Basin.- Marine Geophysical Studies off Karwar, West Coast of India
Abstract Views :201 |
PDF Views:2
Authors
Affiliations
1 National Institute of Oceanography, Dona Pau]a, Goa 403 004, IN
1 National Institute of Oceanography, Dona Pau]a, Goa 403 004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 34, No 2 (1989), Pagination: 121-132Abstract
Geophysical studies of the southwestern continental margin revealed significant surface and subsurface topographic highs (ridges) trending NNW-SSE to NW-SE beyond the shelf break. Residual magnetic anomaly map depicts prominent NNW-SSE, NW-SE and E-W trends. The magnetic anomaly map also reveals three different provinces, A, B and C, based on magnetic signatures, confined to inner shelf, outer shelf and lower shelf. A prominent E-W trending structural Jineament with a NW-SE trending offset is observed cutting across the inner shelf and the lower shelf. Model studies of the geopotential data over the topographic rise indicate about 18 km thick mafic basement of continental origin at a shallow depth (∼800 m). The gravity model studies indicate a thick consolidated sediment layer deposited over the horst and grabenlike features within the granitic layer. The occurrence of ridges parallel to the shelf edge shows the similarity of the western Indian continental margin with the other typical and extensively studied passive margins.- Determination of Physical Properties of Onions (Arka kirthiman)
Abstract Views :409 |
PDF Views:0
Authors
Affiliations
1 Department of Farm Machinery and Power, College of Agricultural Engineering, Madakasira, Anantapur (DT.) (A.P.), IN
2 College of Agricultural Engineering, Madakasira, Anantapur (DT.) (A.P.), IN
1 Department of Farm Machinery and Power, College of Agricultural Engineering, Madakasira, Anantapur (DT.) (A.P.), IN
2 College of Agricultural Engineering, Madakasira, Anantapur (DT.) (A.P.), IN
Source
International Journal of Processing and Post harvest Technology, Vol 7, No 1 (2016), Pagination: 36-41Abstract
India produces about 13 per cent of total worlds onion product and ranked second after China. Onion is grown in an area of 1.0 mha in India with the production of 15.1 million tonnes and productivity of 14.2 tonnes/ hectare. Broad casting method of growing onion seeds results in the higher amount of seed rate, non-uniform distribution of seeds, poor bulb maturity and higher nutrient competition. To overcome these constraints there is a need to develop animal drawn onion seeder, which is more adaptable for small scale farmers under rainfed cultivation with reasonable cost of operation. To develop the desired seed metering unit of animal drawn seeder some of the onion seed physical properties viz., seed dimensions, weight and mechanical properties were determined. The length, width and thickness of Artthi Kirthiman onion variety were in the range of 2.50-2.95 mm, 1.75-2.24 mm and 1.33-1.53 mm, respectively. Geometric mean diameter, spherisity, weight, bulk density, true density, porosity and angle of repose were found to be 1.96 mm, 0.71 cm, 3.69 g, 520 kg/m³, 975.4 kg/m³, 48 per cent and 48.69°, respectively. The Co-efficient of static friction on glass and mild steel were found to be 0.521 and 0.556, respectively.Keywords
Animal Drawn Seeder, Angle of Repose, Moisture Content, Static Friction.References
- Bahnasawy, A.H., Haddad, Z.A., Ansary, M.Y. and Sorour, H.M. (2004). Physical and mechanical properties of some Egyptian onion cultivars. J. Food Engg., 62 : 255–261.
- Carman, K. (1996). Some physical properties of lentil seeds. J. Agric. Engg. Res., 63(6) : 87-92.
- Chhina, R.S. and Sharma, A.D. (2011). Studies on physical properties of onion seeds (Allium cepa). Prog. Hort., 43 (1): 76-80.
- Nimkar, P.M., Dipali, S., Mandwe and Dudhe, M.R. (2005). Physical properties of moth gram. Biosystem Engg., 91(2):183-189.
- Ramya, M. (2006). Studies on male sterility, harvest and threshing methods on seed quality in onion (Allium cepa L.). Ph. D. Thesis, University of Agricultural Sciences, Bangalore, KARNATAKA (INDIA).
- Saraswathi, K.M. (2000). Studies on male sterility of onion. M.Sc. Thesis, University of Agricultural Sciences, Division of Horticulture, Bangalore, KARNATAKA (INDIA).
- Vijaya Rani, Sharma, T.R. and Singh, Narendra (2002). Testing and evaluation of vegetable seed extractor for brinjal (Solanum melongena). Horticultural Science Haryana Agricultural University J. Res., 30: 1/2, 19-24.
- Waziri, A.N. and Mittal, J.P. (1983). Design related physical properties of selected agriculture products. Agric. Mechanization in Asia, Africa & Latin America, 14 (1): 59-62.
- Yalcin, I., Cetin, M. and Ozarslan, C. (2009). Physical properties of onion (Allium cepa L.) seed. Asian J. Chem., 21(2): 1341-1349.
- Design, Development and Evaluation of a Manually Operated Onion Grader for Rose Onion
Abstract Views :205 |
PDF Views:1
Authors
G. Gayathri
1,
K. V. Harshanjali
1,
K. Rupavathi
1,
D. Vijay Kumar
2,
G. Senthil Kumaran
3,
A. Carolin Rathina Kumari
3,
M. V. Ramana
4
Affiliations
1 College of Agricultural Engineering (ANGRU), Madakasira, Anantapur (A.P.), IN
2 Department of Farm Power and Machinery, College of Agricultural Engineering (ANGRAU), Madakasira, Anantapur (A.P.), IN
3 Department of Agricultural Engineering, Indian Institute of Horticulture Research, Hesaraghatta, Bengaluru (Karnataka), IN
4 Department of Soil and Water Conservation Engineering, College of Agricultural Engineering (ANGRAU), Madakasira, Anantapur (A.P.), IN
1 College of Agricultural Engineering (ANGRU), Madakasira, Anantapur (A.P.), IN
2 Department of Farm Power and Machinery, College of Agricultural Engineering (ANGRAU), Madakasira, Anantapur (A.P.), IN
3 Department of Agricultural Engineering, Indian Institute of Horticulture Research, Hesaraghatta, Bengaluru (Karnataka), IN
4 Department of Soil and Water Conservation Engineering, College of Agricultural Engineering (ANGRAU), Madakasira, Anantapur (A.P.), IN
Source
International Journal of Agricultural Engineering, Vol 9, No 2 (2016), Pagination: 121-129Abstract
A manually operated onion grader was designed, developed and evaluated at I.I.H.R., Bangalore for Rose onion verities commonly cultivated in Bangalore into three grades based on geometric dimensions of the selected variety. The linear dimensions like polar diameter, equatorial diameter and thickness of Rose onions were found in the range of 21.92 - 54.54 mm, 15.83 - 59.13 mm and 16.52 - 50.22 mm, respectively. The angle of repose of Rose onions were found as 54.5o, and co-efficient of static friction for onions on different surfaces like galvanized iron 0.402, for stainless steel 0.414, for aluminum 0.386, for mild steel 0.522 and for plywood 0.366, respectively. Experiments were conducted with three types of slopes, at each slope three different feed gate opening lengths and two swing directions. The statistical analysis showed that the standardized parameters were slope 4o, length wise swing direction and feed gate at full opening. The grader has a grading capacity 1105 kg/h at overall grading efficiency 75 per cent and required grading efficiency 75 per cent. The operation cost of machine was 6 times less than manual operation cost.Keywords
Rose Onions, Grading, Grading Efficiency, Grading Capacity, Damage Efficiency.- Evolution of Alternative Filling Materials Replace to the Soil Media for Raising Nursery Seedlings in Fields of Chittoor District
Abstract Views :183 |
PDF Views:0
Authors
Affiliations
1 College of Agricultural Engineering, Madakasira (A.P.), IN
2 College of Agricultural Engineering, Madakasira (A.P.), IN
3 Regional Agricultural Research Station, Tirupati (A.P.), IN
1 College of Agricultural Engineering, Madakasira (A.P.), IN
2 College of Agricultural Engineering, Madakasira (A.P.), IN
3 Regional Agricultural Research Station, Tirupati (A.P.), IN
Source
International Journal of Agricultural Engineering, Vol 11, No 1 (2018), Pagination: 220-226Abstract
This study was conducted to investigate on alternative tray filling materials to replace the soil media on crop growth, yield characteristics and yield attributes in The Mechanized System of Rice Intensification (MSRI). Focusing on the different alternative filling materials suitable to replace the soil media with 100% seed germination, Ten treatments with different combinations were experimented and a fine thin layer of well decomposed farm yard manure was spread over all ten treatments o bed filling material [(i.e., T1-10% groundnut shell + 90 % soil; T2-10% vermincompost+ 90% soil; T3-10% rice husk+90% soil; T4-25% vermin-compost+75% soil; T5-25% rice straw + 75% soil; T6-25% rice husk + 75% soil; T7-10% rice straw+ 90% soil; T8-25% groundnut shell +75% soil; T9-Field soil (100%) (MT); T10-Manual plantin (MP)]. The observation of transplanted hills was also noted in ischolar_main growth and leaf number, leaf area index and number of tillers and panicle number, panicle length and grain number per panicle, grain filling and 1000-grain weight and straw weight. The raising nursery with different bedding materials transplanted with machine significantly influenced grain yield per hectare. The results revealed that highest grain yield per hectare was observed with T8 (25% GS) as 4858.5 kg/ha and followed by T4 (25% VC) as 4685 kg/ha. However, the lowest grain yield was recorded at 2212.6 kg/ha was observed in T6 (25% RH), due to lowest N, P, K contents in rice husk bed material. It is also observed from transplanted crop that ischolar_main length was highest with T5 (25% RS) as 11.39 cm followed by T3 (10% RH) as 11.16 cm, whereas lowest ischolar_main length 9.10 cm, ischolar_main spreading was highest with T8 (25% GS) as 20.72 cm followed by T1 (10% GS) as 19.46 cm, T2 (10% VC) as 19.00, T4 and 9 are comparable with each other and is 18.47 cm. whereas lowest ischolar_main spreading 13.08 cm was observed in T10 (manual planting). Finally it has been concluded that there is significant effect of bedding materials on crop growth and yield parameters.Keywords
MSRI, SRI, Bedding Materials, Yield, Crop Parameters.References
- Ahmad, S., Zia-ul-haq,M., Ali, H., Shad, S.A., Ahmad,A., Maqsood,M., Khan, M.B., Mehmood, S. and Hussain (2008). A water and radiation use efficiencies of transplanted rice (Oryza sativa L.) at different plant densities and irrigation regimes under semi-arid environment Pak. J. Bot., 40 (1): 199-209.
- Aime, Severin Kima, Wen, Guey Chung and Yu-Min, Wang (2014). Improving irrigated lowland rice water use efficiency under saturated soil culture for adoption in tropical climate conditions,Water, 6 : 2830-2846.
- Dhananchezhiyan, P., Divaker Durairaj, C. and Parveen (2013). Development of nursery raising technique for “system of rice intensification” machine transplanting. Africa J. Agric. Res., 8 (29) : 3873-3882.
- Gani, A., Rahman, A., Dahono, Rustam and Hengsdijk, H. (2002). Synopsis of water management experiments in Indonesia. In: Water and rice production- IRRI, 29-37pp.
- Kakumanu, K.R., Gurava, Reddy, K., Palanisami, K., Udaya, Sekhar, Nagothu, Lakshmanan, A. and Tulasi, J. (2011). Adaptation of direct seeded rice under water stress conditions in Andhra Pradesh, Krishna Basin Climarice II: “sustaining rice production in a changing climate, II Technical Brief ,7 : 1-8 .
- Krishna,A.,Biradpatil,O.K., Manjappak and Channappagoudar, B.B. (2008). Evaluation of system of rice intensification cultivation, seedling age and spacing on seed yield and quality in samba mashuri (BPT-5204) rice. Karnataka J. Agric. Sci., 21 (1) : 20-25.