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Dar es Salaam, Tanzania

St. Joseph University in Tanzania | Entity website

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St. Joseph University in Tanzania | Entity website

OTHER SERVICES Amenities and services for the campus community are planned and provided in a phased manner. As the institution grows, these also grow horizontally and vertically in response to the arising needs ...


St. Joseph University in Tanzania | Entity website

CONTACT US Address: P.O Box 11007 Plot no ...


Mathivanan V.,St. Joseph University in Tanzania | Haris M.,Karunya University
Optik | Year: 2016

Crystals of pure and Cu(NO3)2·3H2O doped Rochelle salt (sodium potassium tartrate) crystals are grown from solution at room temperature. The thermal studies such as TGA (thermo gravimetric analysis) shows that there are four stages of decomposition which is confirmed through the four endothermic peaks found in the DSC (differential scanning calorimetry) curve for both pure and Cu(NO3)2·3H2O doped Rochelle salt crystals. The magnetic susceptibility of the pure and doped crystals were found out to be 42.483 × 10-6 and 40.29 × 10-6 emu, respectively. Similarly, the magnetic moment of pure and doped crystals have been found out to be 3.19 BM and 3.10 BM, respectively. The antimicrobial activity of Pure and Cu(NO3)2·3H2O doped Rochelle salt crystals for various concentrations are explained in detail. The dielectric constant of pure and doped crystal decreases as the frequency of applied field increases at the end it gives diminishing value of dielectric constant. The dielectric nature of pure and doped crystals have been compared. The antimicrobial activity of pure and doped crystals shows the inhibition zone diameter for various concentrations with respect to E. coli and Staphylococcus aureus. © 2015 Elsevier GmbH. Source


Paulthurai A.,St. Joseph University in Tanzania | Dharmaraj B.,St. Joseph University in Tanzania
International Journal of Nanoelectronics and Materials | Year: 2014

Single Electron Tunneling (SET) technology introduces more potential for feature size decrease compared to well-established silicon-based CMOS technology. The SET technology offers the ability to control the motion of individual electrons in the designed circuits. In this paper, we present a single-electron 8-3 encoder built using single-electron devices. The circuit is designed using a proper tool based on a Monte Carlo technique. The complete schematic diagrams of these basic SEC along with the corresponding simulation results (using SIMON 2.0) of these SEC are included. First a single-electron OR gate is studied and then a Novel 8-3 Encoder SET, with detailed schematic and simulation results, is presented. The results proved that the circuit was an 8-3 encoder, while the behavior of the free energy of the system (which was calculated to be 4.90x10-1 eV) and the stability diagram verified the correct functioning of the circuit. © 2014, Universiti Malaysia Perlis. All rights reserved. Source

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