Month: November 2015

In this Video, Mrs. Deepika Rathore , Asst. Professor, Biyani Group of Colleges is explaining about the Southern Blotting. This technique is used for detection of a specific DNA sequence in DNA samples. Southern blotting combines transfer of electrophoresis-separated DNA fragments to a filter membrane and subsequent fragment detection by probe hybridization. After hybridization, excess probe is washed from the membrane and the pattern of hybridization is visualized on X-ray film by autoradiography in the case of a radioactive or fluorescent probe, or by development of color on the membrane if a chromogenic detection method is used.

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In this Video, Monika Kiroriwal, Assistant Professor, Biyani Group of Colleges explains about the implementation of CMOS NOR Gate logic design. CMOS logic design made by pull-up and pull-down networks. Pull-up network is made by using PMOS transistors and pull-down network using NMOS transistors. To design the CMOS NAND gate first take the compliment of the expression and then make the pull-up and pull-down networks using PMOS and NMOS transistors respectively. PMOS transistors are connected in series and NMOS transistors are in parallel and after combining these two networks final CMOS NOR gate is produced. Output is taken at the junction points and then verify the truth table of digital NOR gate.

In this Video, Ms. Komal Mehna, Assistant professor, Biyani group of colleges, explains pin diagram of 8051 microcontroller. It is a 40 pin IC which consist 4, 8 bit input & output ports, supply voltage, reset, PSEN, ALE and ground pin. Port 1 is known as truly input and output port where as other ports are used for dual purpose. It has two timers/counters and two oscillators.