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Kalpana, P.
- Fault Based Testing of Low Noise Amplifier
Abstract Views :127 |
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Authors
Affiliations
1 Department of Electronics and Communication Engineering, PSG College of Technology, Coimbatore, IN
1 Department of Electronics and Communication Engineering, PSG College of Technology, Coimbatore, IN
Source
Wireless Communication, Vol 2, No 5 (2010), Pagination: 115-119Abstract
This paper presents a cost effective Embedded Test Circuit (ETC) for single ended Low Noise Amplifiers (LNA).The ETC operation is based on the observation that the presence of catastrophic faults, like resistive bridging, shorts and opens, or parametric faults, result in the attenuation of the output voltage amplitude (gain reduction). It unifies the benefits of reduced Automatic Test Equipment (ATE) complexity of defect based approaches. The ETC along with a single ended LNA has been designed in a 0.35μm CMOS technology using CADENCE tool to evaluate the efficiency of the proposed approach and experimental results are presented.Keywords
Embedded Test Circuit, Low Noise Amplifier, Catastrophic and Parametric Faults.- Biosorption of Lead Ions From Aqueous Solution by Terminalia catappa: Equilibrium and Kinetic Studie
Abstract Views :127 |
PDF Views:0
Authors
Affiliations
1 Dept. of Chemical Engineering, GMR Institute of Technology, Rajam-532 127, Srikakulam (Dt), A.P., IN
2 Dept. of Chemical Engg.,R.V.R & J.C. College of Engineering, Chowdavaram, Guntur-522 019, A.P., IN
1 Dept. of Chemical Engineering, GMR Institute of Technology, Rajam-532 127, Srikakulam (Dt), A.P., IN
2 Dept. of Chemical Engg.,R.V.R & J.C. College of Engineering, Chowdavaram, Guntur-522 019, A.P., IN
Source
Nature Environment and Pollution Technology, Vol 9, No 2 (2010), Pagination: 335-343Abstract
In the present investigation, the sorption is carried out to test thesuitability of abundantly available plant based material Terminalia catappa L. leaf powder as an adsorbent for removal of lead ions fromaqueous solution. The equilibriumstudies are systematically carried out in a batch process, covering various process parameters that include contact time, adsorbent size and dosage, initial lead ion concentration and pH of the aqueous solution. It is observed that there is a significant increase in percentage removal of lead ions as pH increases from2 to 6 and attainmaximumat pH 6. The contact time is to be 20minutes.The Langmuir isothermismore suitable for sorption followed by Freundlich and Temkin isotherms with a maximum adsorption capacity of 28.63 mg/g of lead ion on T. catappa leaf biomass. The sorption of lead ions follows second order kinetic model having a correlation coefficient of 0.9996.Keywords
Biosorption, Terminalia catappa L., Adsorption Isotherms, Kinetic Studies.- Studies on Controlled Release of Fertilizer Zinc Sulphate Made with Super Phosphate as Inert Matrix
Abstract Views :149 |
PDF Views:0
Authors
Affiliations
1 Deptt. of Chemical Engineering, R. V. R and J. C College of Engineering, Guntur-522 019, A. P., IN
2 Department of Chemical Engineering, GMR Institute of Technology, Rajam-532 127, A. P., IN
3 Department of Chemical Engineering, Andhra University, Visakhapatnam-530 003, A. P., IN
1 Deptt. of Chemical Engineering, R. V. R and J. C College of Engineering, Guntur-522 019, A. P., IN
2 Department of Chemical Engineering, GMR Institute of Technology, Rajam-532 127, A. P., IN
3 Department of Chemical Engineering, Andhra University, Visakhapatnam-530 003, A. P., IN