Refine your search
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
Thenmozhi, A.
- An RP-HPLC Method for the Estimation of Dexibuprofen in Pharmaceutical Tablet Dosage Form
Abstract Views :368 |
PDF Views:0
Authors
Affiliations
1 Department of Pharmaceutical Analysis, Arulmigu Kalasalingam College of Pharmacy, Krishnankoil-626 126, Tamil Nadu, IN
1 Department of Pharmaceutical Analysis, Arulmigu Kalasalingam College of Pharmacy, Krishnankoil-626 126, Tamil Nadu, IN
Source
Asian Journal of Pharmaceutical Analysis, Vol 1, No 4 (2011), Pagination: 98-99Abstract
A reverse phase high performance liquid chromatography (RP-HPLC) method has been developed for the estimation of Dexibuprofen in bulk drug and pharmaceutical dosage forms. The quantification was carried out on Waters Symmetry C18 column in isocratic mode, with mobile phase consisting of Acetonitrile and water in the ratio of 55:45%(v/v), adjusted to pH 2.5 with orthophosphoric acid. The mobile phase was pumped at a rate of 1.5mL/min and detection was carried out at 214nm and linearity was found to be in the range of 40 to 160μg/mL. The correlation co-efficient was found to be 0.9991. The % recovery values were found to be in the range of 99.0 to 102%. Validation of the proposed method has also been done.Keywords
Dexibuprofen, Isocratic, RP-HPLC, Estimation, Tablets.
- Secondary Metabolite Screening, Bioactive Compound Extraction, and Disrupting Mitotic Activity of Wild Cabbage [Brassicaceae] towards Cancer Management.
Abstract Views :177 |
PDF Views:1
Authors
Affiliations
1 PG Department of Biochemistry, SRM Arts and Science College, Chennai-603203, IN
2 Department of Biochem, Universiti Sultan Zainal Abidin, MY
1 PG Department of Biochemistry, SRM Arts and Science College, Chennai-603203, IN
2 Department of Biochem, Universiti Sultan Zainal Abidin, MY
Source
Asian Journal of Pharmaceutical Research, Vol 2, No 1 (2012), Pagination: 19-31Abstract
Objective: The present study has been formulated with an objective to establish the preliminary phytochemical analysis and antimitotic activity of Brassica oleracea. Method: Brassica oleracea was collected, homogenized and extracted with different solvents. Antimitotic activity of Brassica oleracea was evaluated using the meristamatic cells from the ischolar_main of Allium cepa. Experiments were carried out with incorporation of folic acid in the extract. Results: The preliminary study revealed the presence of flavonoids, steroids, alkaloids, saponins, polyphenols and glycosides. Folic acid inhibited the antimitotic activity of Brassica oleracea extract. The antimitotic activity obtained was compared with methotrexate-a referred anticancer drug. Discussion: The results obtained from the present study pinpoint that antimitotic activity of Brassica oleracea may be due to the presence of flavonoids, steroids, alkaloids, polyphenols and saponins. Conclusion: Hence Brassica oleracea is a promising source of phytochemicals which promote human health by strengthening the human immune system, inactivate cancer-causing substances, protect the heart and eyes from disease, boost enzyme activity to increase the benefits of the various protective enzymes, reduce bad cholesterol levels, and anti-aging.Keywords
Antimitotic, Brassica oleracea, Allium cepa, Polyphenols, Saponins.- Antimicrobial Effect of Separate Extract of Acetone, Ethyl Acetate, Methanol and Aqueous from Leaf of Milkweed (Calotropis gigantea L.)
Abstract Views :184 |
PDF Views:1
Authors
Affiliations
1 P.G. Department of Biochemistry, SRM Arts and Science College, Kattankulathur-603203, Kanchipuram District, Tamil Nadu, IN
2 Universiti Sultan Zainal Abidin, Kampus Kota, Jalan Sultan Mahmud, 20400 Kuala Terengganu, Terengganu, MY
1 P.G. Department of Biochemistry, SRM Arts and Science College, Kattankulathur-603203, Kanchipuram District, Tamil Nadu, IN
2 Universiti Sultan Zainal Abidin, Kampus Kota, Jalan Sultan Mahmud, 20400 Kuala Terengganu, Terengganu, MY
Source
Asian Journal of Pharmaceutical Research, Vol 1, No 4 (2011), Pagination: 102-107Abstract
Objective: The present communication attempts to study the antimicrobial activity of leaf of Calotropis gigantea L. Methods: The leaf is subjected to various extraction using acetone, ethyl acetate, methanol and aqueous solvents against different bacterial and fungal organisms using disc diffusion method. Result: The acetone, ethyl acetate, methanol and aqueous extracts were active against all the samples and showed significant antibacterial properties. The methanol, acetone, ethyl acetate and aqueous extracts exhibited less activity against fungal organisms. Conclusion: Thus it may be suggested that leaf extracts of Calotropis gigantea L. may be used to treat oral bacterial diseases.
Keywords
Calotropis gigantea L, Antimicrobial Activity, Disc Diffusion Method.- Simultaneous Determination of Risperidone and Trihexhyphenidyl Hydrochloride from Bulk and Tablet Dosage Form by RP-HPLC
Abstract Views :160 |
PDF Views:0
Authors
Affiliations
1 Department of Pharmaceutical Analysis, Arulmigu Kalasalingam College of Pharmacy, Anand Nagar, Krishnankoil-626190, Tamil Nadu, IN
1 Department of Pharmaceutical Analysis, Arulmigu Kalasalingam College of Pharmacy, Anand Nagar, Krishnankoil-626190, Tamil Nadu, IN
Source
Asian Journal of Research in Chemistry, Vol 3, No 3 (2010), Pagination: 549-551Abstract
A simple, reverse phase high performance liquid chromatographic (HPLC) method was developed for the determination of Risperidone and Trihexyphenidyl hydrochloride in combined tablet dosage form. A octadecyl silane (ODS) C18 Phenomenex Gemini (250 mm X 4.6 mm, i.d., 5μ) column , with mobile phase of 0.3% ortho phosphoric acid buffer, acetonitrile and methanol (50:30:20% v/v/v) adjusted to pH3 with triethylamine was used. The flow rate was 1 mL/minute and the effluent was monitored at 220 nm. The retention times for Risperidone and Trihexyphenidyl hydrochloride were 2.685±0.012 and 5.912±0.030 minutes respectively. The linearity range was found to be 4.8 μg/mL to 19.2 μg/mL for Risperidone and 3.2 μg/mL to 12.8 μg/mL for Trihexyphenidyl hydrochloride. The proposed method was validated as per ICH guidelines.Keywords
Risperidone, Trihexyphenidyl Hydrochloride, RP-HPLC, Tablets.- Performance Analysis of Audio and Video Synchronization using Spreaded Code Delay Measurement Technique
Abstract Views :180 |
PDF Views:0
Authors
A. Thenmozhi
1,
P. Kannan
1
Affiliations
1 Department of ECE, Anna University, Chennai, IN
1 Department of ECE, Anna University, Chennai, IN
Source
International Journal of Advanced Networking and Applications, Vol 10, No 1 (2018), Pagination: 3728-3734Abstract
The audio and video synchronization plays an important role in speech recognition and multimedia communication. The audio-video sync is a quite significant problem in live video conferencing. It is due to use of various hardware components which introduces variable delay and software environments. The objective of the synchronization is used to preserve the temporal alignment between the audio and video signals. This paper proposes the audio-video synchronization using spreading codes delay measurement technique. The performance of the proposed method made on home database and achieves 99% synchronization efficiency. The audio-visual signature technique provides a significant reduction in audio-video sync problems and the performance analysis of audio and video synchronization in an effective way. This paper also implements an audio- video synchronizer and analyses its performance in an efficient manner by synchronization efficiency, audio-video time drift and audio-video delay parameters. The simulation result is carried out using mat lab simulation tools and simulink. It is automatically estimating and correcting the timing relationship between the audio and video signals and maintaining the Quality of Service.Keywords
Audio Spreading Codes, Hamming Distance Correlation, Spectrograph, Synchronization, Video Spreading Codes.Full Text
References
- Alka Jindal, Sucharu Aggarwal, “Comprehensive overview of various lip synchronization techniques” IEEE International transaction on Biometrics and Security technologies, 2008.
- Anitha Sheela.k, Balakrishna Gudla, Srinivasa Rao Chalamala, Yegnanarayana.B, “Improved lip contour extraction for visual speech recognition” IEEE International transaction on Consumer Electronics,pp.459-462, 2015.
- N. J. Bryan, G. J. Mysore and P. Smaragdis, “Clustering and synchronizing multicamera video via landmark cross-correlation,” in IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), March 2012, pp. 2389–2392.
- Claus Bauer, Kent Terry, Regunathan Radhakrishnan, “Audio and video signature for synchronization” IEEE International conference on Multimedia and Exposition Community (ICME), pp.1549-1552, 2008.
- N. Dave, N. M. Patel. "Phoneme and Viseme based Approach for Lip Synchronization.", International Journal of Signal Processing, Image Processing and Pattern Recognition, pp. 385-394, 2014.
- Dragan Sekulovski, Hans Weda, Mauro Barbieri and Prarthana Shrestha, “Synchronization of Multiple Camera Videos Using Audio-Visual Features,” in IEEE Transactions On Multimedia, Vol. 12, No. 1, January 2010.
- Fumei Liu, Wenliang, Zeliang Zhang, “Review of the visual feature extraction research” IEEE 5th International Conference on software Engineering and Service Science, pp.449-452, 2014.
- Josef Chalaupka, Nguyen Thein Chuong, “Visual feature extraction for isolated word visual only speech recognition of Vietnamese” IEEE 36th International conference on Telecommunication and signal processing (TSP), pp.459-463, 2013.
- K. Kumar, V. Libal, E. Marcheret, J. Navratil, G.Potamianos and G. Ramaswamy, “AudioVisual speech synchronization detection using a bimodal linear prediction model”. in Computer Vision and Pattern Recognition Workshops, 2009, p. 54.
- Laszlo Boszormenyi, Mario Guggenberger, Mathias Lux, “Audio Align-synchronization of A/V streams based on audio data” IEEE International journal on Multimedia, pp.382-383, 2012.
- Y. Liu, Y. Sato, “Recovering audio-to-video synchronization by audiovisual correlation analysis”. in Pattern Recognition, 2008, p. 2.
- C. Lu and M. Mandal, “An efficient technique for motion-based view-variant video sequences synchronization,” in IEEE International Conference on Multimedia and Expo, July 2011, pp. 1–6.
- Luca Lombardi, Waqqas ur Rehman Butt, “A survey of automatic lip reading approaches” IEEE 8th International Conference Digital Information Management (ICDIM), pp.299-302, 2013.
- Namrata Dave, “A lip localization based visual feature extraction methods” An International journal on Electrical and computer Engineering, vol.4, no.4, December 2015.
- P. Shrstha, M. Barbieri, and H. Weda, “Synchronization of multi-camera video recordings based on audio,” in Proceedings of the 15th international conference on Multimedia 2007, pp.545–548.
- Performance Analysis of Audio and Video Synchronization Using Spreaded Code Delay Measurement Technique
Abstract Views :221 |
PDF Views:0
Authors
A. Thenmozhi
1,
P. Kannan
1
Affiliations
1 Department of Electronics and Communication Engineering, Anna University, Chennai, IN
1 Department of Electronics and Communication Engineering, Anna University, Chennai, IN
Source
ICTACT Journal on Image and Video Processing, Vol 9, No 1 (2018), Pagination: 1807-1813Abstract
The audio and video synchronization plays an important role in speech recognition and multimedia communication. The audio-video sync is a quite significant problem in live video conferencing. It is due to use of various hardware components which introduces variable delay and software environments. The synchronization loss between audio and video causes viewers not to enjoy the program and decreases the effectiveness of the programs. The objective of the synchronization is used to preserve the temporal alignment between the audio and video signals. This paper proposes the audio-video synchronization using spreading codes delay measurement technique. The performance of the proposed method made on home database and achieves 99% synchronization efficiency. The audio-visual signature technique provides a significant reduction in audio-video sync problems and the performance analysis of audio and video synchronization in an effective way. This paper also implements an audio- video synchronizer and analyses its performance in an efficient manner by synchronization efficiency, audio-video time drift and audio-video delay parameters. The simulation result is carried out using Matlab simulation tools and Simulink. It is automatically estimating and correcting the timing relationship between the audio and video signals and maintaining the Quality of Service.Keywords
Synchronization, Software, Hardware, Audio-Visual Spreading Codes, Temporal Alignment.References
- Alka Jindal and Sucharu Aggarwal, “Comprehensive Overview of Various Lip Synchronization Techniques”, Proceedings of International Symposium on Biometrics and Security Technologies, pp. 23-29, 2008.
- K. Anitha Sheela, Balakrishna Gudla, Srinivasa Rao Chalamala and B. Yegnanarayana, “Improved Lip Contour Extraction for Visual Speech Recognition”, Proceedings of International Conference on Consumer Electronics, pp. 459-462, 2015.
- N.J. Bryan, G.J. Mysore and P. Smaragdis, “Clustering and Synchronizing Multicamera Video via Landmark Cross-Correlation”, Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, pp. 2389-2392, 2012.
- Claus Bauer, Kent Terry and Regunathan Radhakrishnan, “Audio and Video Signature for Synchronization”, Proceedings of IEEE International Conference on Multimedia and Exposition Community, pp. 1549-1552, 2008.
- N. Dave and N.M. Patel. “Phoneme and Viseme based Approach for Lip Synchronization”, International Journal of Signal Processing, Image Processing and Pattern Recognition, Vol. 7, No. 3, pp. 385-394, 2014.
- Dennis Laurijssen and Erik Verreycken, “Low-Cost Synchronization of High speed Audio and Video Recording in Bio-Acoustic”, International Journal of Experimental Biology, Vol. 8, No. 2, pp. 1-22, 2017.
- Dragan Sekulovski, Hans Weda, Mauro Barbieri and Prarthana Shrestha, “Synchronization of Multiple Camera Videos using Audio-Visual Features”, IEEE Transactions on Multimedia, Vol. 12, No. 1, pp. 79-92, 2010.
- Fumei Liu, Wenliang and Zeliang Zhang, “Review of the Visual Feature Extraction Research”, Proceedings of IEEE 5th International Conference on Software Engineering and Service Science, pp. 449-452, 2014.
- Josef Chalaupka and Nguyen Thein Chuong, “Visual Feature Extraction for Isolated Word Visual only Speech Recognition of Vietnamese”, Proceedings of IEEE 365th International Conference on Telecommunication and Signal Processing, pp. 459-463, 2013.
- K. Kumar, V. Libal, E. Marcheret, J. Navratil, G. Potamianos and G. Ramaswamy, “Audio-Visual Speech Synchronization Detection using a Bimodal Linear Prediction Model”, Proceedings of Computer Vision and Pattern Recognition Workshops, pp. 54-57, 2009.
- Laszlo Boszormenyi, Mario Guggenberger and Mathias Lux, “Audio Align-Synchronization of A/V Streams based on Audio Data”, Proceedings of IEEE International Symposium on Multimedia, pp. 382-383, 2012.
- Y. Liu and Y. Sato, “Recovering Audio-to-Video Synchronization by Audiovisual Correlation Analysis”, Proceedings of 195th International Conference on Pattern Recognition, pp. 1-2, 2008.
- C. Lu and M. Mandal, “An Efficient Technique for Motion-based View-Variant Video Sequences Synchronization”, Proceedings of IEEE International Conference on Multimedia and Expo, pp. 1-6, 2011.
- Luca Lombardi and Waqqas ur Rehman Butt, “A Survey of Automatic Lip Reading Approaches”, Proceedings of IEEE 85th International Conference Digital Information Management, pp. 299-302, 2013.
- Namrata Dave, “A Lip Localization based Visual Feature Extraction Methods”, An International Journal on Electrical and Computer Engineering, Vol. 4, No. 4, pp. 23-28, 2015.
- P. Shrstha, M. Barbieri and H. Weda, “Synchronization of Multi-Camera Video Recordings based on Audio”, Proceedings of 155th International Conference on Multimedia, pp. 545-548, 2007.