An efficient chiral squaramide-catalysed enantioselective Michael addition of pyrazolin-5-ones to nitroalkenes has been developed. This reaction afforded the chiral pyrazol-3-ol derivatives in high to excellent yields (up to >99%) with high enantioselectivities (up to 94% ee) for most substrates under very low catalyst loading (0.25 mol%). This catalytic asymmetric reaction provides valuable an...

The idea for designing the Divider unit is adopted from ancient Indian mathematics "Vedas" .Vedic Mathematics is the old method of computing. With the advent of new technology in the fields of VLSI and communication, there is also an always increasing demand for high speed processing and low area design. Divider is an important fundamental function in arithmetic operations. It is also known fac...

Processor speed largely governed by the multiplier architectures. It is desired to have faster ALU with lower power consumption for portable applications to have good battery life. Hence, there is need to address different multiplier architectures. In this paper, the analysis of 4-bit multiplier using a Vedic Mathematics (Urdhva Tiryagbhyam sutra) and conventional multiplier with two different ...

Computer science has a unique and important role in today’s world. With its powerful synthesis of new tools and mechanisms through which to express our growing knowledge of natural law, it has extended and redefined many areas of life to create new disciplines, and new possibilities for the application and development of existing fields. This rapid development is based on progress in two fundam...

The area of radiological image compression has not yet met its potential solution. After reviewing the existing mechanism of compression, it was found that majority of the existing techniques suffers from significant pitfalls e.g. more usage of transformation schemes, more resource utilization, delay, less focus on FPGA performance enhancement, extremely less emphasis on Vedic-multipliers. Henc...

Digital signal processing (DSP) is the technology that is omnipresent in almost every engineering discipline. A typical processor devotes a considerable amount of processing time in performing arithmetic operations, particularly multiplication operations. Multiplication is one of the basic arithmetic operations and it requires substantially more hardware resources and processing time than addit...

This work is devoted for the design and FPGA implementation of a 16bit Arithmetic module, which uses Vedic Mathematics algorithms. For arithmetic multiplication various Vedic multiplication techniques like Urdhva Tiryakbhyam Nikhilam and Anurupye has been thoroughly analyzed. Also Karatsuba algorithm for multiplication has been discussed. It has been found that Urdhva Tiryakbhyam Sutra is most ...