Engineering
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74 MZ Jacobson and RP Turco ume of each other particle in the bin. When a particle grows (or evaporates), it transfers from its current bin to a bin containing larger (or smaller) particles. A moving bin, on the other hand, is one where... more
74 MZ Jacobson and RP Turco ume of each other particle in the bin. When a particle grows (or evaporates), it transfers from its current bin to a bin containing larger (or smaller) particles. A moving bin, on the other hand, is one where the volume of each particle in the ...
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Super Typhoon Herb caused tremendous damages on the coastal defense structures and severe flooding near and at the National Taiwan Ocean University (NTOU) on the north coast of Taiwan. This article examined nearby structure failures,... more
Super Typhoon Herb caused tremendous damages on the coastal defense structures and severe flooding near and at the National Taiwan Ocean University (NTOU) on the north coast of Taiwan. This article examined nearby structure failures, coastal waves, and water level ...
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... d n = [S 2 /S 1 ] 1/n − 1, a standardized deforestation indicator for environmental monitoring in Mexico, where d n = deforestation rate, S 2 = forest cover in time period two, S 1 = forest cover in time period one and n = number of... more
... d n = [S 2 /S 1 ] 1/n − 1, a standardized deforestation indicator for environmental monitoring in Mexico, where d n = deforestation rate, S 2 = forest cover in time period two, S 1 = forest cover in time period one and n = number of years between time periods (Palacio-Prieto et al ...
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Caffeic acid phenethyl ester (CAPE) derived from honeybee propolis has been used as a folk medicine and has several proven biological activities. The present study investigated the effect of CAPE on angiogenesis, tumor invasion, and... more
Caffeic acid phenethyl ester (CAPE) derived from honeybee propolis has been used as a folk medicine and has several proven biological activities. The present study investigated the effect of CAPE on angiogenesis, tumor invasion, and metastasis. A cytotoxicity assay of CAPE ...
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ABSTRACT In this study, the supercritical antisolvent (SAS) process is applied to crystallization of an active pharmaceutical ingredient, tolfenamic acid, using carbon dioxide as the antisolvent. Six operating parameters in the SAS... more
ABSTRACT In this study, the supercritical antisolvent (SAS) process is applied to crystallization of an active pharmaceutical ingredient, tolfenamic acid, using carbon dioxide as the antisolvent. Six operating parameters in the SAS process including solvent system, operating temperature, operating pressure, solution concentration, solution flow rate and nozzle diameter are studied. The effects of operating parameters on solid-state properties of the processed tolfenamic acid including crystal habit, mean particle size and polymorphic form are compared and discussed. The crystal habit of original tolfenamic acid crystals is irregular shape with Form I polymorph. The mean particle size of original powders is about 30 μm. After recrystallization using SAS process, two polymorphic forms of tolfenamic acid with different crystal habits and mean particle sizes are obtained. Form I tolfenamic acid shows a needle-like crystal habit with mean particle size of about 20 μm; while Form II tolfenamic acid shows a rod-like crystal habit with mean particle size of around 10 μm. In addition, the dissolution profiles of original and recrystallized tolfenamic acids are also studied and compared. Experimental results show that the recrystallized Form II tolfenamic acid crystals has an enhanced dissolution rate compared with the original sample, demonstrating that the SAS technology is an efficient process for controlling and modifying the solid-state properties of tolfenamic acid and also produces microparticles with enhanced dissolution behavior.
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A rational model is proposed for reconstruction of bandlimited signals from successive observations, bandlimits, and knowledge of signal peak location. The parameters of the model may be estimated from the singular vectors of a certain... more
A rational model is proposed for reconstruction of bandlimited signals from successive observations, bandlimits, and knowledge of signal peak location. The parameters of the model may be estimated from the singular vectors of a certain double-Hankel matrix constructed from this information. In contrast to the currently popular minimum-energy approach, which has limited spectral resolution and is sensitive to noise, high
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ABSTRACT
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ABSTRACT
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We have fabricated a microarray of porous silicon Bragg reflectors on a crystalline silicon substrate using a technological process based on standard photolithography and electrochemical anodization of the silicon. The array density is of... more
We have fabricated a microarray of porous silicon Bragg reflectors on a crystalline silicon substrate using a technological process based on standard photolithography and electrochemical anodization of the silicon. The array density is of 170 elements/cm2 and each element has a diameter ...
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... Darshak R. Trivedi, Amar Ballabh and Parthasarathi Dastidar*. Analytical Science Discipline, Central Salt & Marine Chemicals Research Institute, GB Marg, Bhavnagar 364 002, Gujarat, India. E-mail:... more
... Darshak R. Trivedi, Amar Ballabh and Parthasarathi Dastidar*. Analytical Science Discipline, Central Salt & Marine Chemicals Research Institute, GB Marg, Bhavnagar 364 002, Gujarat, India. E-mail: parthod123@rediffmail.com; , dastidar@csmcri.org; Fax: +91-278-2567562. ...
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... Amar Ballabh, Darshak R. Trivedi, and Parthasarathi Dastidar*. Analytical Science Discipline, Central Salt & Marine Chemicals Research Institute, GB Marg, Bhavnagar 364 002, Gujarat, India. Chem. Mater. , 2006,... more
... Amar Ballabh, Darshak R. Trivedi, and Parthasarathi Dastidar*. Analytical Science Discipline, Central Salt & Marine Chemicals Research Institute, GB Marg, Bhavnagar 364 002, Gujarat, India. Chem. Mater. , 2006, 18 (16), pp ...
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... Uttam Kumar Das, Darshak R Trivedi, NN Adarsh and Parthasarathi Dastidar. The Journal of Organic Chemistry 2009 74 (18), 7111 ... Pathik Sahoo, NN Adarsh, George E. Chacko, Srinivasa R. Raghavan, Vedavati G. Puranik and Parthasarathi... more
... Uttam Kumar Das, Darshak R Trivedi, NN Adarsh and Parthasarathi Dastidar. The Journal of Organic Chemistry 2009 74 (18), 7111 ... Pathik Sahoo, NN Adarsh, George E. Chacko, Srinivasa R. Raghavan, Vedavati G. Puranik and Parthasarathi Dastidar. Langmuir 2009 25 (15 ...