Patel Patel | Universidad de los Andes (Colombia) (original) (raw)

Papers by Patel Patel

In parallel communication the cost as well as complexity of the system increases due to simultane... more In parallel communication the cost as well as complexity of the system increases due to simultaneous transmission of data bits on multiple wires. Serial communication alleviates this drawback and emerges as effective candidate in many applications for long distance communication as it reduces the signal distortion because of its simple structure. This paper focuses on the VHDL implementation of UART

Unsupervised video surveillance that can automatically learn, predict or detect events can be use... more Unsupervised video surveillance that can automatically learn, predict or detect events can be useful in unsupervised video surveillance that can automatically learn, predict or detect events can be useful in many practical situations. This work describes how many practical situations. This work describes how an unsupervised surveillance can be used in goal detection in basketball videos. We present a system which takes as input a video stream of a basket and an agent trying to hit a goal and produce an analysis of the behavior of the ball in the scene and detect goals. To achieve this functionality, our system relies on two modular blocks. The first-one detects and tracks moving balls in the sequence. The second module takes as input these trajectories and makes decision on a goal versus non goal. We present details of the system, together with results on a number of real video sequences and also provide a quantitative analysis of the results. The approach described here uses object detection and mean-shift tracking to detect and track the basketball in a video. Goal decision is based on the positions of the ball, its current and immediate past positions, in image frame, with respect to a matrix representing the basket.

Indian Journal of Pharmaceutical Sciences, 2008

Simple, specific, accurate and precise method, namely, reverse phase high performance liquid chro... more Simple, specific, accurate and precise method, namely, reverse phase high performance liquid chromatography was developed for estimation of duloxetine HCl in pharmaceutical formulations. For the high performance liquid chromatography method, Phenomenox C-18, 5 μm column consisting of 250×4.6 mm i.d. in isocratic mode, with mobile phase containing 0.01M 5.5 pH phosphate buffer: acetonitrile (60:40 v/v) and final pH adjust to 5.5±0.02 with phosphoric acid was used. The flow rate was 1.2 ml/min and effluent was monitored at 231 nm. The retention time was 5.61 min. The method was validated in terms of linearity, accuracy and precision. The linearity curve was found to be linear over 0.25-4 μg/ml. The limit of detection and limit of quantification were found to be 0.10 and 0.25 μg/ml respectively. The proposed method was successfully used to determine the drug content of marketed formulations.

Indian Journal of Pharmaceutical Sciences, 2007

A high performance thin layer chromatographic method for the determination of diclofenac sodium i... more A high performance thin layer chromatographic method for the determination of diclofenac sodium in pharmaceutical formulations was developed. The drug was extracted from the sample (emulgel) then various aliquots of this solution were spotted automatically by means of Camag Linomat IV (Switzerland) on a silica gel 60 F 254 aluminium plate, using a mixture of toluene : ethyl acetate : glacial acetic acid (60:40:1, v/v/v) as mobile phase. The spot areas were quantified by densitometry at 282 nm. Linear calibration curve was obtained over the range 5-80 µg.mL -1 (r 2 = 0.9993). The method was applied to the determination of diclofenac sodium in Diclogel ® , Voltaren ® emulgel and Dosanac ® emulsiongel with the average percentage recoveries of 104.21±1.59, 112.41±1.93 and 101.27±4.59, respectively. The standard deviation of diclofenac sodium in Dosanac ® emulsiongel was higher than those obtained from Diclogel ® and Voltaren ® emulgel, probably owing to the matrices present in the sample. But the recoveries of the added diclofenac sodium in the samples are quite good. The average percentage labelled amount of diclofenac sodium in Diclogel ® , Voltaren ® emulgel and Dosanac ® emulsiongel were 94.61±0.06, 97.87±0.11 and 94.81±0.03, respectively. They are not exceed the percentage labelled amount claimed, (not less than 90% and not more than 110%, USP 28) . The proposed method is simple, rapid, sensitive, reproducible and accurate. It also consumed less reagents compared with the HPLC method. Therefore this method is suitable for routine analysis of this drug in raw materials and formulations.

International Journal of Electronics, 2006

... S. 2 ; Patel, K. 1 ; Patel, P. 1 ; Patel, KM 1 ; Doshi, P. 1 ; Patel, C. 1 ; Jain, R. 3 ; Tha... more ... S. 2 ; Patel, K. 1 ; Patel, P. 1 ; Patel, KM 1 ; Doshi, P. 1 ; Patel, C. 1 ; Jain, R. 3 ; Thaker, M. 3 ;Upadhyay, N. 3 ... Affiliations: 1: Charotar Institute of Technology, Changa, Tal: Petlad, District Anand, Gujarat, India 2: University of Santa Clara, California, USA 3: Shriram Institute of ...

In parallel communication the cost as well as complexity of the system increases due to simultane... more In parallel communication the cost as well as complexity of the system increases due to simultaneous transmission of data bits on multiple wires. Serial communication alleviates this drawback and emerges as effective candidate in many applications for long distance communication as it reduces the signal distortion because of its simple structure. This paper focuses on the VHDL implementation of UART

Unsupervised video surveillance that can automatically learn, predict or detect events can be use... more Unsupervised video surveillance that can automatically learn, predict or detect events can be useful in unsupervised video surveillance that can automatically learn, predict or detect events can be useful in many practical situations. This work describes how many practical situations. This work describes how an unsupervised surveillance can be used in goal detection in basketball videos. We present a system which takes as input a video stream of a basket and an agent trying to hit a goal and produce an analysis of the behavior of the ball in the scene and detect goals. To achieve this functionality, our system relies on two modular blocks. The first-one detects and tracks moving balls in the sequence. The second module takes as input these trajectories and makes decision on a goal versus non goal. We present details of the system, together with results on a number of real video sequences and also provide a quantitative analysis of the results. The approach described here uses object detection and mean-shift tracking to detect and track the basketball in a video. Goal decision is based on the positions of the ball, its current and immediate past positions, in image frame, with respect to a matrix representing the basket.

Indian Journal of Pharmaceutical Sciences, 2008

Simple, specific, accurate and precise method, namely, reverse phase high performance liquid chro... more Simple, specific, accurate and precise method, namely, reverse phase high performance liquid chromatography was developed for estimation of duloxetine HCl in pharmaceutical formulations. For the high performance liquid chromatography method, Phenomenox C-18, 5 μm column consisting of 250×4.6 mm i.d. in isocratic mode, with mobile phase containing 0.01M 5.5 pH phosphate buffer: acetonitrile (60:40 v/v) and final pH adjust to 5.5±0.02 with phosphoric acid was used. The flow rate was 1.2 ml/min and effluent was monitored at 231 nm. The retention time was 5.61 min. The method was validated in terms of linearity, accuracy and precision. The linearity curve was found to be linear over 0.25-4 μg/ml. The limit of detection and limit of quantification were found to be 0.10 and 0.25 μg/ml respectively. The proposed method was successfully used to determine the drug content of marketed formulations.

Indian Journal of Pharmaceutical Sciences, 2007

A high performance thin layer chromatographic method for the determination of diclofenac sodium i... more A high performance thin layer chromatographic method for the determination of diclofenac sodium in pharmaceutical formulations was developed. The drug was extracted from the sample (emulgel) then various aliquots of this solution were spotted automatically by means of Camag Linomat IV (Switzerland) on a silica gel 60 F 254 aluminium plate, using a mixture of toluene : ethyl acetate : glacial acetic acid (60:40:1, v/v/v) as mobile phase. The spot areas were quantified by densitometry at 282 nm. Linear calibration curve was obtained over the range 5-80 µg.mL -1 (r 2 = 0.9993). The method was applied to the determination of diclofenac sodium in Diclogel ® , Voltaren ® emulgel and Dosanac ® emulsiongel with the average percentage recoveries of 104.21±1.59, 112.41±1.93 and 101.27±4.59, respectively. The standard deviation of diclofenac sodium in Dosanac ® emulsiongel was higher than those obtained from Diclogel ® and Voltaren ® emulgel, probably owing to the matrices present in the sample. But the recoveries of the added diclofenac sodium in the samples are quite good. The average percentage labelled amount of diclofenac sodium in Diclogel ® , Voltaren ® emulgel and Dosanac ® emulsiongel were 94.61±0.06, 97.87±0.11 and 94.81±0.03, respectively. They are not exceed the percentage labelled amount claimed, (not less than 90% and not more than 110%, USP 28) . The proposed method is simple, rapid, sensitive, reproducible and accurate. It also consumed less reagents compared with the HPLC method. Therefore this method is suitable for routine analysis of this drug in raw materials and formulations.

International Journal of Electronics, 2006

... S. 2 ; Patel, K. 1 ; Patel, P. 1 ; Patel, KM 1 ; Doshi, P. 1 ; Patel, C. 1 ; Jain, R. 3 ; Tha... more ... S. 2 ; Patel, K. 1 ; Patel, P. 1 ; Patel, KM 1 ; Doshi, P. 1 ; Patel, C. 1 ; Jain, R. 3 ; Thaker, M. 3 ;Upadhyay, N. 3 ... Affiliations: 1: Charotar Institute of Technology, Changa, Tal: Petlad, District Anand, Gujarat, India 2: University of Santa Clara, California, USA 3: Shriram Institute of ...