Browsing by Author "Rugmini Radhakrishnan, S"
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Item Comparative Evaluation Between A Single Slope and Pyramid Type Solar Still with PCM Storage Material(2011-05) Gunasundari, S; Rugmini Radhakrishnan, SItem Construction and Performance Analysis of a Single Slope and a Pyramid Cover Solar Still with Storage Media and Electrical Backup(2014-07) Kalaivani, S; Rugmini Radhakrishnan, SItem Construction and Study of A Digital Energy Monitor(2009-04) Sangeetha, D; Rugmini Radhakrishnan, SItem Construction and Study on Performance of Intrusion Sensor, Gas Sensor and Fire Sensor in A Home Security System With an Autodialing Programme(2008-04) Greeshma, T; Rugmini Radhakrishnan, SItem Design and Fabrication of a Modified Fresnel Solar Cooker and its Comparative Performance With a Low Cost Parabolic Dish Cooker and a Commercial Sk10 Solar Cooker(2006-11) Sreejaya , K V; Rugmini Radhakrishnan, SItem Design and study of a iow-cost laboratory model digital wind power meter(2010) Karthika, S; Rugmini Radhakrishnan, SA vane-type low-cost laboratory mode! anemometer ciim power meter is designed and constructed lor measuring low wind energy created from accelerating fluids. The constructed anemometer is a device which records the electrical power obtained by the conversion of wind power using a wind sensor coupled to a DC motor. It is designed For its high-reliability, ease of construction and for a wide profile of low-range velocities. The construction of the digital anemometer is an easy task that even unskilled people can manage in a short time. The performance of the digital anemometer is analysed by its capability to convert wind speeds to powerItem Design, Development and Study of A Digital Anemometer(2009-04) Karthika, S; Rugmini Radhakrishnan, SItem Development and Performance Analysis of A Self Designed Integrated Greenhouse Pot In A Self Made Cookit(2008-04) Suthandera Bharathi, M; Rugmini Radhakrishnan, SItem Experimental Investigation of the Behaviour of A Pyramid Type Solar Still Coupled and Decoupled to An Electrical Temperature Controller(2011-05) Vaishnavi, E; Rugmini Radhakrishnan, SItem Extraction of Dyes From Fruits and Vegetables, Its Effects on Tio2 For Dye-Sensitized Solar Cells(2010-04) Jayashree, M; Rugmini Radhakrishnan, SItem A Novel Coin Operated Solar Cell Phone Charger With Electrical Back Up(2009-04) Padmavathy, P; Rugmini Radhakrishnan, SItem Optical Studies on H2SO4 Crosslinked Chitosan jyiembranes(2011) Rugmini Radhakrishnan, SCrosslinking and protonation of Chitosan meinbranes (prepared by solution casting technique) with sulfuric acid and systematic study on its variation of optical band gap, type of transition and the shape of the absorption edge for different concentration (O.IM - ch-1, 0.5M - ch-5 and 0.9M ch-9) of sulfuric acid through IJV-Visible Spectroscopy have been investigated, fhe synthesized Chitosan membranes of 25 pm thickness were subjected to XRD (X-Ray Diffraction) analysis to determine the structure. From the results it is proved to be amorphous in nature exhibiting some crystalline peaks (20) around 10'\ 1 5" and 20'\Item Performance Analysis of A Single Sloped Basin Solar Still With and Without Latent Heat Thermal Energy Storage System And Coupled To An Electrical Temperature Controller(2011-05) Fathima Parveen, A; Rugmini Radhakrishnan, SItem Preparation and Characterisation of Tio2 Thin Film By Spray Pyrolysis Method(2010-04) Sudha, S; Rugmini Radhakrishnan, SItem Preparation And Characterization of Sno2:F By Spray Pyrolysis Method(2010-04) Supriya, M; Rugmini Radhakrishnan, SItem Protonation of the Nh2 Groups Through Crosslinking Chitosan Membranes With H2so4(2010) Rugmini Radhakrishnan, SChitosaii n biopolyincr membrane prepared by solution casting method was cross-linked with 0.1, 0.5, and 0.7 M l-CSO^.Tlie structural properties were characterized by FT IR and XR.D and the residts showed protonalion of the N IL groups by H7SO4 and the cross-linking decreased the crystallinity of the chitosan membrane.Item Spectroscopy studies on conductive polyaniline - polyimide blend films(2011) Rugmini Radhakrishnan, SConducting films of ±10 camphorsulfonic acid (C.SA)-iloped polyaniline / polyimide (PAMI/Pl) blends with vaiinns compositions were prepared by solvent casting process. The molecular level interaction in these blend films were e.xperimentally characterized by Fourier transform infrared (FITR). Raman, l.iV-Vi.s anil X-ray diffraction (XKD) spectroscopic technic|ues. The interacting structure and observed reil shift confirm the presence of hydrogen bonding helu ecn the carbonyl group ot PI with the amine ol PAN I that affects the optical band gap (E.). electrical conductivity (n) as w'ell as the morphologi of the blends. The disappearance of the characteristic peaks ol PAN'1-C.SA after blends with PI suggests some kind of molecular mixing between the two components and compatibility betw'een the conducting ami non-conducting polymers.