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REE geochemistry of auriferous quartz carbonate veins of Neoarchean Ajjanahalli gold deposit,Chitradurga schist belt,Dharwar Craton,India 被引量:1
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作者 S.Sarangi r.srinivasan V.Balaram 《Geoscience Frontiers》 SCIE CAS CSCD 2013年第2期231-239,共9页
REE composition of the carbonates of the auriferous quartz carbonate veins(QCVs) of the Neoarchean Ajjanahalli gold deposit.Chitradurga schist belt.Dharwar Craton,is characterized by U-shaped chondrite normalized RE... REE composition of the carbonates of the auriferous quartz carbonate veins(QCVs) of the Neoarchean Ajjanahalli gold deposit.Chitradurga schist belt.Dharwar Craton,is characterized by U-shaped chondrite normalized REE patterns with both LREE and HREE enrichment and a distinct positive Eu anomaly.As positive Eu anomaly is associated with low oxygen fugacity,we propose that the auriferous fluids responsible for gold mineralization at Ajjanahalli could be from an oxygen depleted fluid.The observed positive Eu anomaly is interpreted to suggest the derivation of the auriferous fluids from a mantle reservoir.The location of Ajjanahalli gold deposit in a crustal scale shear zone is consistent with this interpretation. 展开更多
关键词 U-shaped REE pattern Eu anomaly Quartz carbonate veins(QCVs) Orogenic gold deposits Dharwar Craton
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Optimal Solution of Fuzzy Transportation Problem Using Octagonal Fuzzy Numbers
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作者 D.Gurukumaresan C.Duraisamy r.srinivasan 《Computer Systems Science & Engineering》 SCIE EI 2021年第6期415-421,共7页
In this paper a fuzzy transportation problem under a fuzzy environment is solved using octagonal fuzzy numbers.The transportation problem is significant and has been widely studied in the field of applied mathematics ... In this paper a fuzzy transportation problem under a fuzzy environment is solved using octagonal fuzzy numbers.The transportation problem is significant and has been widely studied in the field of applied mathematics to solve a system of linear equations in many applications in science.Systems of concurrent linear equations play a vital major role in operational research.The main perspective of this research paper is to find out the minimum amount of transportation cost of some supplies through a capacitated network formerly the availability and the demand notes are octagonal fuzzy numbers.Octagonal fuzzy numbers are used and showed a membership function.To illustrate this method,a fuzzy transportation problem is solved by using octagonal fuzzy numbers using the ranking technique.It is shown that it is the best optimal solution and it is demonstrated with a numerical example. 展开更多
关键词 Linear equation transportation problem fuzzy transportation problem ranking technique trapezoidal fuzzy numbers
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The impact of process variations on input impedance and mitigation using a circuit technique in FinFET-based LNA 被引量:2
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作者 D.Suresh K.K.Nagarajan r.srinivasan 《Journal of Semiconductors》 EI CAS CSCD 2015年第4期104-109,共6页
The effect of process variations of a FinFET-based low noise amplifier (LNA) are mitigated by using the device in an independently driven mode, i.e. an independently driven double gate (IDDG) FinFET. A 45 nm gate ... The effect of process variations of a FinFET-based low noise amplifier (LNA) are mitigated by using the device in an independently driven mode, i.e. an independently driven double gate (IDDG) FinFET. A 45 nm gate length IDDG FinFET-based cascoded LNA, operating at 5 GHz, is designed and studied to assess the impact of process variation on the LNA performance metrics such as input impedance, gain and noise figure. Four geometrical parameters, gate length, channel width, gate oxide thickness and fin width, and one non-geometrical parameter, channel doping concentration, are considered in the study. The effect of these variations on the input impedance (the desired value is 50 f2 purely real) of the LNA is compensated by the second gate bias of the IDDG FinFET. 展开更多
关键词 FINFET LNA process variation T-SPICE
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