scholarly journals Analysis of Vedic, Wallace Tree and Array Multipliers

2021 ◽  
Author(s):  
G. Srividhya ◽  
D. Kalaiyarasi ◽  
N. Pritha ◽  
S.L. Bharathi
Keyword(s):  
Wallace Tree ◽  
Detailed Explanation ◽  
Array Multipliers

Multiplications are the most important and crucial operation in any system. They are done through the process of repetitive addition. Since speed is necessary in any factor therefore multiplication must also be done in a faster way so that they are utilized properly for a faster result. This paper gives a detailed explanation on all three multipliers and compares them accordingly. In this paper, three various multiplication methods are considered and simulated. Three structural multipliers such as Vedic, Wallace tree and array multipliers are compared and their output is shown through the FGPA. For comparison, the results of multipliers are synthesized and simulated using XILINX.ISE.14.5 tool. Later the comparison is concluded by evaluating their utilization of the device.

Origin of the alternate bright/dark contrast in HREM images of hexagonal crystals, particularly 6H-SiC

1993 ◽  
Vol 51 ◽  
pp. 914-915
Author(s):  
J.S. Bow ◽  
R.W. Carpenter ◽  
M.J. Kim
Keyword(s):  
High Resolution ◽  
Incident Beam ◽  
Hexagonal Crystal ◽  
Detailed Explanation ◽  
Similar Character ◽  
High Resolution Images ◽  
The Difference ◽  
Zigzag Shape ◽  
Hexagonal Crystals ◽  
Dark Contrast

A prominent characteristic of high-resolution images of 6H-SiC viewed from [110] is a zigzag shape with a period of 6 layers as shown in Fig.1. Sometimes the contrast is same through the 6 layers of (0006) planes (Fig.1a), but in most cases it appears as in Fig.1b -- alternate bright/dark contrast among every three (0006) planes. Alternate bright/dark contrast is most common for the thicker specimens. The SAD patterns of these two types of image are almost same, and there is no indication that the difference results from compositional ordering. O’Keefe et al. concluded this type of alternate contrast was due to crystal tilt in thick parts of the specimen. However, no detailed explanation was given. Images of similar character from Ti3Al, which is also a hexagonal crystal, were reported by Howe et al. Howe attributed the bright/dark contrast among alternate (0002) Ti3Al planes to phase shifts produced by incident beam tilt.

Performance Analysis of Various Multipliers Using 8T-full Adder with 180nm Technology

2020 ◽  
Vol 13 (6) ◽  
pp. 864-870
Author(s):  
Sai Venkatramana Prasada G.S ◽  
G. Seshikala ◽  
S. Niranjana
Keyword(s):  
Low Power ◽  
Power Dissipation ◽  
High Speed ◽  
High Performance ◽  
Full Adder ◽  
Fundamental Operation ◽  
Wallace Tree ◽  
Power Delay Product ◽  
The Comparative Study ◽  
Wallace Tree Multiplier

Background: This paper presents the comparative study of power dissipation, delay and power delay product (PDP) of different full adders and multiplier designs. Methods: Full adder is the fundamental operation for any processors, DSP architectures and VLSI systems. Here ten different full adder structures were analyzed for their best performance using a Mentor Graphics tool with 180nm technology. Results: From the analysis result high performance full adder is extracted for further higher level designs. 8T full adder exhibits high speed, low power delay and low power delay product and hence it is considered to construct four different multiplier designs, such as Array multiplier, Baugh Wooley multiplier, Braun multiplier and Wallace Tree multiplier. These different structures of multipliers were designed using 8T full adder and simulated using Mentor Graphics tool in a constant W/L aspect ratio. Conclusion: From the analysis, it is concluded that Wallace Tree multiplier is the high speed multiplier but dissipates comparatively high power. Baugh Wooley multiplier dissipates less power but exhibits more time delay and low PDP.

Uncharted Territory

2018 ◽  
Author(s):  
Courtney Freer
Keyword(s):  
Literature Review ◽  
Arabian Peninsula ◽  
Academic Work ◽  
Political Islam ◽  
Original Research ◽  
Social Policies ◽  
Detailed Explanation ◽  
Rentier States ◽  
The Way

This introductory chapter outlines where and how this book contributes original research to the existing scholarship on politics of rentier states in the Arabian Peninsula, as well as the academic work on political Islam through a brief literature review. This book will demonstrate that political Islam serves as a prominent voice critiquing social policies, as well as promoting more strictly political, and often populist or reformist, views supported by a great many Gulf citizens. As laid out in this chapter, this book demonstrates that the way that Islamist organizations operate in the unique environment of the super-rentiers is distinct. It also presents information about the methodology and sources used, as well as a detailed explanation for the use of country cases chosen. The chapter closes by describing the format of the book.

Rudolf Otto: Parallelen und Wertunterschiede im Christentum und Buddhatum

2020 ◽  
Vol 27 (2) ◽  
pp. 311-350
Author(s):  
Thomas Linke
Keyword(s):  
Philosophy Of Religion ◽  
Main Work ◽  
Detailed Explanation ◽  
Christian Perspective ◽  
The World ◽  
History Of ◽  
Rudolf Otto ◽  
First Time

Abstract This is a new (and for the first time complete) edition of a speech about Buddhism by Rudolf Otto from 1913. This speech is his first academic reflexion of his journey around the world and his most detailed explanation of his view on this religion. In the first part of his speech Otto compares Buddhism with Christianity and finds a lot of parallels. In the second part he defines differences between these two religions and proclaims – from a Christian perspective – Christianity as more valuable than Buddhism. The preface puts the speech into its context: Otto’s relationship to and his knowledge of Buddhism (1), the history of publication of this speech (2), Otto’s specific view on Buddhism in comparison to his contemporaries (3), the meaning of this speech in his œuvre (4) and explanations about the edition (5). The editor has the opinion, that this speech is an important transition from Ottos philosophy of religion to his main work The Idea of the Holy. It further is a good example of what Otto means when speaking about the comparison of religions.

Design of area-efficient high speed 4 × 4 Wallace tree multiplier using quantum-dot cellular automata

2020 ◽  
Author(s):  
A. Arunkumar Gudivada ◽  
K. Jayaram Kumar ◽  
Srinivasa Rao Jajula ◽  
Durga Prasad Siddani ◽  
Praveen Kumar Poola ◽  
...  
Keyword(s):  
Cellular Automata ◽  
Quantum Dot ◽  
High Speed ◽  
Quantum Dot Cellular Automata ◽  
Wallace Tree ◽  
Wallace Tree Multiplier ◽  
Area Efficient

Study on FSK Signal Demodulation Based on Chirp-Z Transform

2012 ◽  
Vol 532-533 ◽  
pp. 827-831
Author(s):  
Jiang Hua Xia ◽  
Jing Guo ◽  
Xiao Ming Wang
Keyword(s):  
Frequency Shift ◽  
Matlab Simulation ◽  
A Algorithm ◽  
Signal Parameters ◽  
Detailed Explanation ◽  
Symbol Rate ◽  
Shift Keying ◽  
Signal Demodulation ◽  
Track Circuits ◽  
Strong Ability

The Frequency-Shift Keying (FSK) signal is frequently used in track circuits because of the strong ability of resistance interference. Symbol rate is one of the important signal parameters for safety of railway. The paper propose a algorithm of high precise detectation of FSK signal using Chirp-Z transform; Theoretically gives the detailed explanation to the major technique, and has carried on the Matlab simulation, The simulation result indicates this method during the enhancement is shifted signal examination precision, reduced the computation order of complexity.

Tangxian Jidong Cement Co., Ltd. SNCR DeNOx Engineering Practice

2013 ◽  
Vol 726-731 ◽  
pp. 2342-2346 ◽  
Author(s):  
Shao Hua Ling ◽  
Chang Yong Jing ◽  
Jing Ma ◽  
Li Juan Zhang
Keyword(s):  
Flue Gas ◽  
Reducing Agent ◽  
Engineering Practice ◽  
System Configuration ◽  
Process Characteristics ◽  
Detailed Explanation ◽  
Actual Operating ◽  
Ammonia Slip ◽  
Flue Gas Denitrification

Tang xian in Hebei Jidong Cement Co., Ltd. flue gas denitrification treatment works, the project uses ammonia as a reducing agent SNCR DeNOx technology. A detailed explanation of the the SNCR process characteristics and system configuration, The analysis for actual operating results of the engineering. The results show: After treatment NOx concentration is less than 200 mg/Nm3, Denitrification efficiency reach 72.82%, Ammonia slip less than 0.9mg/Nm3, Engineering put into operation, About a year reduces emission NOx 1430 tons.

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