Refine your search
Collections
Co-Authors
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
Rambabu, T.
- Performance Evaluation of Fractionally Spaced Constant Modulus Algorithm (FSCMA) in Relation to CMA (Constant Modulus Algorithm) Method for Blind Equalization of Wireless Signals
Abstract Views :125 |
PDF Views:5
Authors
Affiliations
1 KL University, Vaddeswaram, Guntur District, IN
2 Andhra University, Visakhapatnam, IN
1 KL University, Vaddeswaram, Guntur District, IN
2 Andhra University, Visakhapatnam, IN
Source
International Journal of Advanced Networking and Applications, Vol 5, No 1 (2013), Pagination: 1818-1824Abstract
Wireless communication is being used for many purposes and has become very frequently used mode of communication. Blind equalization methods are being used to estimate the received signal without the necessity to use the trained sequences in the input. Many methods CMA (Constant Modulus Algorithm), FS-CMA (Fractionally spaced CMA), PC-CMA(Phase compensation CMA), MMA(Multi-Modulus Algorithms) are being used for blind equalization. However all the methods are affected due to Inter symbol interference (ISI) and Bit error rate(BER) in the transmission.It has been proved [9] that CMA performs reasonably well compared to LMS methods in the absence of trained sequences. However the method suffers from issues such as Partial spacing, non-phase compensation etc.
In this paper the performance evaluation of FS-CMA in comparison to CMA considering the model parameters at which the maximum performance can be achieved is presented. The performance of FS-CMA as against CMA in respect toInter Symbol interference ISI[1] and Bit error rate (BER), considering optimum parameters has also been presentedin this paper.
Keywords
FS-CMA, CMA, ISI, BER, Blind Equalization, Wireless Communication, Model Parameter, Optimum Model Parameters.Full Text
- Comparative Evaluation of Tissue Dissolution Efficacy of Azadirachta indica Irrigant and Sodium Hypochlorite – An in vitro Study
Abstract Views :192 |
PDF Views:0
Authors
Girija S. Sajjan
1,
Podugu Uday Kumar
1,
T. Rambabu
1,
K. Madhu Varma
1,
R. Kalyan Satish
2,
G. Prasanthi
1
Affiliations
1 Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Vishnupur, Bhimavaram, West Godavari District - 534202, Andhra Pradesh, IN
2 Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Vishnupur, Bhimavaram, West Godavari District - 534202, Andhra Pradesh
1 Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Vishnupur, Bhimavaram, West Godavari District - 534202, Andhra Pradesh, IN
2 Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Vishnupur, Bhimavaram, West Godavari District - 534202, Andhra Pradesh
Source
Journal of Pierre Fauchard Academy (India Section), Vol 32, No 1-2 (2018), Pagination: 1-5Abstract
Objectives: This study aimed to evaluate the tissue dissolution efficacy of Azadirachta indica (A. indica) irrigant and sodium hypochlorite. Materials and Methods: 40 bovine muscle tissue specimens of equal dimensions were used in the experiment. Based on tissue specimen treatment, they were divided into four test groups - 3%NaOCl (Group I), 7.5% A. indica irrigant (Group II), alternative use of 3%NaOCl and 7.5% A. indica irrigant (Group III) and control group as distilled water (Group IV). Tissue specimens were weighed before and after placing in test solutions at 2 different time intervals (30,60 minutes). Results: The results revealed that 3%NaOCl showed highest tissue dissolution followed by alternative use of 3%NaOCl. and A. indica irrigant, A. indica alone and distilled water (Group I >III>II>IV). The larger the duration of contact with irrigant better is the tissue dissolution. Conclusion: 7.5% A. indica irrigant alone does not have any tissue dissolving property but in combination it acts as a neutral solution neither increasing nor decreasing the capability of 3%NaOCl.Keywords
Azadirachta indica, NaOCl, Smear Layer, Tissue Dissolution
References
- Stojicic S, Zivkovic S, Qian W, Zhang H, Haapasalo M. Tissue dissolution by sodium hypochlorite: effect of concentration, temperature, agitation, and surfactant. J Endod. 2010;36(9):1558-62. PMid:20728727
- Ballal NV, Mala K, Bhat KS. Effect of maleic acid and ethylenediaminetetraacetic acid on the dissolution of human pulp tissue – An in vitro study. Int Endod J. 2011;44:353– 356. PMid:21219363
- Cobankara FK, Ozkan HB, Terlemez A. Comparison of organic tissue dissolution capacities of sodium hypochlorite and chlorine dioxide. J Endod. 2010;36(2):272–274. PMid:20113788
- Aarati N, Ranganath NN, Soumya BG, Kishore B, Mithun K. Evaluation of antibacterial and anticandidal efficacy of aqueous and alcoholic extract of neem (Azadirachta indica) an invitro study. IJRAP. 2011;2(1):230–235.
- Chhibber S, Sharma N. Medicinal and therapeutical potential of neem (Azadirachta indica). A Review International Journal of Scientific and Research Publications. 2014;4(5):1–5.
- Dutta A, Kundabala M. Comparative anti-microbial efficacy of Azadirachta indica irrigant with standard endodontic irrigants: A preliminary study. J Conserv Dent. 2014;17(2):133–137. PMid:24778508. PMCid:PMC4001268
- Tandan S, Chandra S, Gupta S, Tripathi H, Lal J. Pharmacological effects of Azadirachta indica leaves. Fitoterapia. 1990;LXI:75–78.
- Irala LE, Grazziotin-Soares R, Salles AA, Munari AZ, Pereira JS. Dissolution of bovine pulp tissue in solutions consisting of varying NaOCl concentrations and combined with EDTA. Braz Oral Res. 2010;24(3):271–276. PMid:20877962
- Taneja S, Mishra N, Malik S. Comparative evaluation of human pulp tissue dissolution by different concentrations of chlorine dioxide, calcium hypochlorite and sodium hypochlorite: An in vitro study. J Conserv Dent. 2014;17(6):541–545. PMid:25506141. PMCid:PMC4252927
- Christensen CE, McNeal SF, Eleazer P. Effect of Lowering the pH of sodium hypochlorite on dissolving tissue in Vitro. J Endod 2008;34:449–452. . PMid:18358894
- Moorer WR, Wesselink PR. Factors promoting the tissue dissolving capability of sodium hypochlorite. Int Endod J. 1982;15:187–196.
- Rossi-Fedele G, Steier L, Dogramaci EJ, Canullo L, Steier G, de Figueiredo JA. Bovine pulp tissue dissolution ability of HealOzone, Aquatine Alpha Electrolyte and sodium hypochlorite. Aust Endod J. 2013;39:57–61. . PMid:23890260
- Baker, John R. Principles of Biological Microtechnique. A Study of Fixation and Dyeing. London: Methuen & Co. Ltd; 1958.