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Chandra Mouli B,Ramji K,Vishesh R. Kar,Subrata K. Panda,Lalepalli Anil K,Harsh K Pandey 국제구조공학회 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.68 No.5
The free vibration frequency responses of the graded flat and curved (cylindrical, spherical, hyperbolic and elliptical) panel structures investigated in this research considering the rectangular and tilted planforms under unlike temperature loading. For the numerical implementation purpose, a micromechanical model is prepared with the help of Voigt’s methodology via the power-law type of material model. Additionally, to incur the exact material strength, the temperature-dependent properties of each constituent of the graded structure included due to unlike thermal environment. The deformation kinematics of the rectangular/tilted graded shallow curved panel structural is modeled via higher-order type of polynomial functions. The final form of the eigenvalue equation of the heated structure obtained via Hamilton’s principle and simultaneously solved numerically using finite element steps. To show the solution accuracy, a series of comparison the results are compared with the published data. Some new results are exemplified to exhibit the significance of power-law index, shallowness ratio, aspect ratio and thickness ratio on the combined thermal eigen characteristics of the regular and tilted graded panel structure.
G.R.Chandra Mouli,P.Bauer,M. Zeman 전력전자학회 2015 ICPE(ISPE)논문집 Vol.2015 No.6
Electric vehicles (EV) can be charged in a sustainable way by charging them from photovoltaic (PV) panels. Workplace charging of EV from PV results in use of the solar potential of office buildings and the long parking time at workplace paves way for implementation of vehicleto- grid (V2G) technology. In this paper, different possible system architecture for an EV-PV charger are investigated and compared. A review of power converters that integrate EV and PV is made and the systems are compared based on system architecture, converter topology, isolation and bidirectional power capability for V2G operation. Based on the study, two optimal designs for the EV-PV charger are proposed that uses a multi-port converter. Different methods to implement modularity in the converter design for charging multiple EVs from a single EV-PV charger are presented.
In vitro Propagation and Ex vitro Rooting of Tectona grandis (L.f ), APNBV-1 Clone
Ramesh, Kommalapati,Chandra, Mouli Kalla,Vijaya, Tartte Institute of Forest Science 2009 Journal of Forest Science Vol.25 No.2
An efficient in vitro plant regeneration system was developed through shoot proliferation from axillary buds of Tectona grandis (L.f), APNBV-1 (Andhra Pradesh North Badrachalam Venkatapuram-1) clone. Multiple shoots of high quality were produced in vitro from axillary bud explants. An average of 4.39 shoots/explant were obtained on Murashige and Skoog's (MS) medium supplemented with plant growth regulators (PGRs) benzyl amino purine (BA), kinetin (KN), indole acetic acid (IAA), gibberillic acid ($GA_3$), growth adjuvants casein hydrolysate (CH), adenine sulphate (Ads) and antioxidants ascorbic acid, polyvinyl pyrrollidine (PVP). Eighty five percent of rooting was observed in ex vitro rooting media containing IBA and vermiculite. In ex vitro rooting, single shoots with 2 to 3 nodes were subjected to IBA of different concentrations at different periods of time intervals. Direct rooting in vermiculite at 500 ppm concentration of IBA resulted in 4.3 number of roots with 2 cm length. Minimum response of rooting and length of roots were recorded at 100 ppm concentration of IBA. Planlets were transferred to plastic bags for short acclimatization stage in green house where they survived at 95%.