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Search Results: 1 - 10 of 3201 matches for " Prasad "
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Dynamics of Particle in a Box in Time Varying Potential Due to Chirped Laser Pulse  [PDF]
Brijender Dahiya, Vinod Prasad
Journal of Modern Physics (JMP) , 2010, DOI: 10.4236/jmp.2010.16053
Abstract: We describe a computational method for simulating the time dependent quantum mechanical system inter-acting with external field. In this method the Schrödinger equation is solved by expanding the wave function in the basis set of unperturbed Hamiltonian. The expansion yields a set of coupled first order differential equation. For expansion coefficients, the coupled channel method is applied to a particle in a box interacting with external field in the form of chirped laser pulse. The pulse shape is taken as Gaussian. We study the ef-fect of different pulse parameters i.e. chirp rate, intensity, center frequency, box length and laser duration on the dynamics of the particle. Many interesting results are obtained and explained.
Layout Design of LC VCO with Current Mirror Using 0.18 µm Technology  [PDF]
Namrata Prasad, Radheshyam Gamad
Wireless Engineering and Technology (WET) , 2011, DOI: 10.4236/wet.2011.22014
Abstract: This paper presents a new design of complementary oxide semiconductor voltage controlled oscillator (CMOS VCO) for improve tuning range and phase noise with low power consumption. Design is area efficient and easy to implement. Design is carried out in cadence and schematic editor using 180 nm technology. Simulation is done and performance results are reported. Results have been compared with earlier published work and improvements are obtained in this work.
Encapsulation of PCM for Thermo-Regulating Fabric Application  [PDF]
Subhas Ghosh, Prasad Bhatkhande
International Journal of Organic Chemistry (IJOC) , 2012, DOI: 10.4236/ijoc.2012.24050
Abstract: Polyethylene glycol (PEG) has been used as a phase change material (PCM) to create a thermo-regulating fabric. PEG-600 (Mw) was encapsulated using an in-situ polymerization technique in an oil-in water emulsion with encapsulating water-immiscible liquid by the reaction of urea with formaldehyde at acidic pH. Both FTIR analysis and DSC studies verified the formation of PEG microcapsules (MC). Melting temperature (Tm) of the microcapsules was found approximately 21°C which was the same as neat PEG. The heat storage capacity of these MCs was determined to be 12.78 J/g by DSC analysis. FTIR analysis of the MCs exhibited the peaks at 3211 cm﹣1, 1650 cm﹣1, and 1400 cm﹣1. These are the characteristic absorption peaks of -NH2, -C=O stretching and -CH bending vibrations, respectively. Fabric coated with PEG microcapsules showed a 20% higher thermal resistance, than the uncoated fabric, when heated on a Sweating Hot Plate (MTNW Corporation).
New Electronically-Controllable Lossless Synthetic Floating Inductance Circuit Using Single VDCC  [PDF]
Dinesh Prasad, Javed Ahmad
Circuits and Systems (CS) , 2014, DOI: 10.4236/cs.2014.51003

A new electronically-controllable lossless floating inductance (FI) circuit (without any matching condition) has been presented, which employs only one Voltage Differencing Current Conveyor (VDCC), one grounded capacitor and one grounded resistor. The main aim of the paper is to present a new floating inductance simulator using single active device with minimum passive components. The proposed floating inductance simulator can be electronically controllable by changing the bias current. The workability of the new presented FI circuit has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.

Scoping the Possibilities: Student Preferences towards Open Textbooks Adoption for E-Learning  [PDF]
Deepak Prasad, Tsuyoshi Usagawa
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.524227
Abstract: Many universities have begun implementing e-Learning systems due to their low cost. However, publishers of expensive textbooks stand in the way of e-Learning’s ability to provide a cost-effective educational delivery model. While many universities aim to overcome this opposition and replace traditional publishers’ textbooks with free open textbooks, such plans cannot be executed successfully unless students are open to their use. As such, a study into students’ preferences towards open textbook adoption is vital to provide clear indication as to their opinions regarding open textbook use. Thus, this study conducted a study of University of the South Pacific (USP) students’ preferences towards open textbook adoption for e-Learning using a survey administered during Semester 2, 2013 which generated 1077 responses. Areas examined include: Impacts of textbook costs on students’ academic careers; preferences towards open textbook adoption; perceived barriers to and motivations for adoption of open textbooks; and preferred digital features and reading devices. Results show that textbook prices adversely impact students. Furthermore, a high level of acceptance towards the adoption of open textbooks was found. The study revealed that the preference for reading printed material was the highest rated barrier to open textbook adoption, while the free availability of open textbooks was rated the greatest motivator. Study findings are being used to inform efforts to develop open textbooks at the USP and may assist other universities seeking to start similar projects.
Nimotuzumab in Treatment of Infiltrating Squamous Cell Carcinoma of Tongue  [PDF]
Alex A. Prasad
Journal of Cancer Therapy (JCT) , 2015, DOI: 10.4236/jct.2015.62015

A 50-year male patient presented to outpatient department with a mass on tongue associated with pain. A plain computerised tomography scan done on 17/01/13 revealed mild growth on lateral border of tongue with an enlarged jugulo-digastric lymph node measuring 1.8?×?1 cm. Excision of tongue was done and sent for histopathological examination which revealed infiltrating squamous cell carcinoma. The patient was treated with 2 cycles of Induction chemotherapy with cisplatin and paclitaxel administered in q3w schedule. Induction chemotherapy was followed by concurrent chemoradiotherapy with 6 cycles of nimotuzumab 200 mg and cisplatin 20 mg given weekly along with 60 gy/30 fractions of radiation using IMRT. Latest CT scan done on 20/01/2014 revealed no evidence of disease (NED).

Does Corruption in a Country Affect the Foreign Direct Investment? A Study of Rising Economic Super Powers China and India  [PDF]
Siva Prasad Ravi
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.37017

Many researchers have studied the effect of corruption on Foreign Direct Investment (FDI) and majority of them have come to the conclusion that higher levels corruption in a country deter FDI. This paper is a case-based comparative study of the effect of corruption on FDI in China and India. Corruption in India has negatively affected FDI, whereas that is not true in China. This study finds that while corruption does affect FDI inflows into a country, the effect also depends on nature of corruption and not only on size of corruption.

Double U-Shaped Slots Loaded Stacked Patch Antenna for Multiband Operation  [PDF]
Nagendra Prasad Yadav
Open Journal of Antennas and Propagation (OJAPr) , 2015, DOI: 10.4236/ojapr.2015.32002
Abstract: The design of a seven-band stacked patch antenna for the C, X and Ku band is presented. The antenna consists of an H-slot loaded fed patch, stacked with dual U-slot loaded rectangular patch to generate the seven frequency bands. The total size of the antenna is 39.25 × 29.25 mm2. The multiband stacked patch antenna is studied and designed using IE3D simulator. For verification of simulation results, the antenna is analyzed by circuit theory concept. The simulated return loss, radiation pattern and gain are presented. Simulated results show that the antenna can be designed to cover the frequency bands from (4.24 GHz to 4.50 GHz, 5.02 GHz to 5.25 GHz) in C-band application, (7.84 GHz to 8.23 GHz) in X-band and (12.16 GHz to 12.35 GHz, 14.25 GHz to 14.76 GHz, 15.25 GHz to 15.51 GHz, 17.52 GHz to 17.86 GHz) in Ku band applications. The bandwidths of each band of the proposed antenna are 5.9%, 4.5%, 4.83%, 2.36%, 3.53%, 1.68% and 1.91%. Similarly the gains of the proposed band are 2.80 dBi, 4.39 dBi, 4.54 dBi, 10.26 dBi, 8.36 dBi and 9.91 dBi, respectively.
A Method for Polarizing More Number of Impurity-Vacancy Dipoles  [PDF]
Jai Prakash, Devendra Prasad
Journal of Applied Mathematics and Physics (JAMP) , 2016, DOI: 10.4236/jamp.2016.42051
Abstract: Free rotating impurity-vacancy (IV) dipoles in an alkali halide matrix are polarized to the extent of 1/3 of the total number of IV dipoles. An experimental procedure is suggested in this article which will help in the polarization of IV dipoles to the extent of 2/3 of the total number of IV dipoles. In the suggested experimental procedure, the electric field will be applied at first in one direction and then will be applied in succession in opposite direction. Ionic thermocurrent technique is employed to ascertain the increase in polarization of IV dipoles.
Emission of Biophotons Is a Cosmic Effect  [PDF]
Siva Prasad Kodukula
Open Journal of Biophysics (OJBIPHY) , 2016, DOI: 10.4236/ojbiphy.2016.62005
Abstract: Relation between emission of biophotons and the “space-time” of the universe has been conceptualized and the concerned calculation is verified with the experimental results. The theoretical result derived is at par with the experimental results on biophotons. Some concepts like “Film Theory of the Universe”, K-Suryon, “Super Theory of Relativity” and “Siva’s constant ‘K’’’ have been utilized in the calculations. These calculations emphasized that the experimental results on biophotons are an effect of cosmic interactions. It is a new dimension of research on biophotons and may lead to new path for experimental verification in the areas of consciousness and neurosciences.
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