VLSI module for high-performance multiply, square root and divide

1992 ◽  
Vol 139 (6) ◽  
pp. 505 ◽  
Author(s):  
S.E. McQuillan ◽  
J.V. McCanny
Keyword(s):  
High Performance ◽  
Square Root

High performance VLSI modules for division and square root

1998 ◽  
Vol 22 (5) ◽  
pp. 239-246 ◽  
Author(s):  
Gregorio Cappuccino ◽  
Pasquale Corsonello ◽  
Giuseppe Cocorullo
Keyword(s):  
High Performance ◽  
Square Root

High performance VLSI architecture for division and square root

1991 ◽  
Vol 27 (1) ◽  
pp. 19-21 ◽  
Author(s):  
S.E. McQuillan ◽  
J.V. McCanny ◽  
R.F. Woods
Keyword(s):  
High Performance ◽  
Vlsi Architecture ◽  
Square Root

scholarly journals Design of High Performance and Power Efficient 16-bit Square Root Carry Select Adder using Hybrid PTL/CMOS Logic

2013 ◽  
Vol 69 (10) ◽  
pp. 32-35
Author(s):  
Lakshay Suri ◽  
Devesh Lamba ◽  
Kunwar Kritarth ◽  
Bhavna Ghai ◽  
Geetanjali Sharma
Keyword(s):  
High Performance ◽  
Square Root ◽  
Power Efficient ◽  
Carry Select Adder

scholarly journals The new integer factorization algorithm based on Fermat’s Factorization Algorithm and Euler’s theorem

2020 ◽  
Vol 10 (2) ◽  
pp. 1469
Author(s):  
Kritsanapong Somsuk
Keyword(s):  
High Performance ◽  
Computation Time ◽  
The Other ◽  
Square Root ◽  
Integer Factorization ◽  
Factorization Algorithm ◽  
Euler’S Theorem ◽  
Prime Factors ◽  
Factorization Algorithms ◽  
Root Operation

Although, Integer Factorization is one of the hard problems to break RSA, many factoring techniques are still developed. Fermat’s Factorization Algorithm (FFA) which has very high performance when prime factors are close to each other is a type of integer factorization algorithms. In fact, there are two ways to implement FFA. The first is called FFA-1, it is a process to find the integer from square root computing. Because this operation takes high computation cost, it consumes high computation time to find the result. The other method is called FFA-2 which is the different technique to find prime factors. Although the computation loops are quite large, there is no square root computing that included into the computation. In this paper, the new efficient factorization algorithm is introduced. Euler’s theorem is chosen to apply with FFA to find the addition result between two prime factors. The advantage of the proposed method is that almost of square root operations are left out from the computation while loops are not increased, they are equal to the first method. Therefore, if the proposed method is compared with the FFA-1, it implies that the computation time is decreased, because there is no the square root operation and the loops are same. On the other hand, the loops of the proposed method are less than the second method. Therefore, time is also reduced. Furthermore, the proposed method can be also selected to apply with many methods which are modified from FFA to decrease more cost.

A High Performance Energy Analyzer for Use in Electron Scanning Microscopy

1969 ◽  
Vol 27 ◽  
pp. 14-15
Author(s):  
A. V. Crewe ◽  
M. Isaacson ◽  
D. Johnson
Keyword(s):  
High Performance ◽  
Vertical Plane ◽  
Median Plane ◽  
Electron Gun ◽  
Uniform Field ◽  
Loss Mechanism ◽  
Electron Scanning Microscopy ◽  
Sector Type ◽  
Double Focusing ◽  
Electron Energy Loss

A double focusing magnetic spectrometer has been constructed for use with a field emission electron gun scanning microscope in order to study the electron energy loss mechanism in thin specimens. It is of the uniform field sector type with curved pole pieces. The shape of the pole pieces is determined by requiring that all particles be focused to a point at the image slit (point 1). The resultant shape gives perfect focusing in the median plane (Fig. 1) and first order focusing in the vertical plane (Fig. 2).

Vacuum System to Minimize the Specimen Contamination of High-Performance EM

1977 ◽  
Vol 35 ◽  
pp. 68-69
Author(s):  
N. Yoshimura ◽  
K. Shirota ◽  
T. Etoh
Keyword(s):  
Electron Microscope ◽  
High Speed ◽  
High Performance ◽  
High Vacuum ◽  
Vacuum System ◽  
Pump System ◽  
Pumping System ◽  
Diffusion Pump ◽  
Almost All ◽  
Cascade Type

One of the most important requirements for a high-performance EM, especially an analytical EM using a fine beam probe, is to prevent specimen contamination by providing a clean high vacuum in the vicinity of the specimen. However, in almost all commercial EMs, the pressure in the vicinity of the specimen under observation is usually more than ten times higher than the pressure measured at the punping line. The EM column inevitably requires the use of greased Viton O-rings for fine movement, and specimens and films need to be exchanged frequently and several attachments may also be exchanged. For these reasons, a high speed pumping system, as well as a clean vacuum system, is now required. A newly developed electron microscope, the JEM-100CX features clean high vacuum in the vicinity of the specimen, realized by the use of a CASCADE type diffusion pump system which has been essentially improved over its predeces- sorD employed on the JEM-100C.

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