The Micro Fluidic Integrated Circuits Design Method based on the CAD System

2011 ◽  
Vol 66-68 ◽  
pp. 1930-1935 ◽  
Author(s):  
San Ping Zhao
Keyword(s):  
Integrated Circuits ◽  
Circuit Design ◽  
Design Method ◽  
Cad System ◽  
Spice Model ◽  
Fluidic Circuits ◽  
First Time

In this study, SPICE program is applied to design micro fluidic circuits based on the analogical relationship with MOSFET models for the first time. A SPICE model of pneumatic-FET is established to express the behavior of them in micro fluidic circuits. Construction of pneumatic-FET model, its optimization, and effectiveness in circuit design and comparison are discussed in the later sections.

scholarly journals Power Consumption Improvements in AES Decryption Based on Null Convention Logic

2021 ◽  
Vol 15 ◽  
pp. 254-264
Author(s):  
Toi Le Thanh ◽  
Lac Truong Tri ◽  
Hoang Trang
Keyword(s):  
Integrated Circuits ◽  
Power Consumption ◽  
Circuit Design ◽  
Design Method ◽  
Circuit Model ◽  
Maximum Speed ◽  
Test Model ◽  
Asynchronous Circuit ◽  
Design Models ◽  
Null Convention Logic

In this paper, we propose a new asynchronous method based on a Null Convention Logic (NCL) to improve power consumption for low power integrated circuits. The reason is because the NCL based designs do not use a clock, it eliminates the problems related to the clock and its power consumption reduces significantly. To show the advantages of the selected method, we propose two design models using the synchronous circuit design method, and the NCL based asynchronous circuit design method. To test these two design models conveniently, we also propose an extra automatic test model. In this study, the AES decryption is used as an example to illustrate both methods. The two above proposed AES decryption models are simulated and synthesized at the various corners by VCS and Design Compiler tool using TSMC standard cell libraries in 65nm technology. The synthesis results of the two above mentioned models indicated that the power consumption of the NCL based asynchronous circuit model is 3 times lower than that of the synchronous circuit model, and significantly improves (from 94% to 98%) compared with the results of the other authors. The processing speed of the NCL based asynchronous circuit paradigm is able to achieve a maximum speed.

A multi-dimensional matrix keyboard interfacing circuit design

Circuit World ◽  
2020 ◽  
Vol 46 (3) ◽  
pp. 175-182
Author(s):  
Guangwei Yu ◽  
Yuan Yao ◽  
Zhuoyuan Song
Keyword(s):  
Circuit Design ◽  
Design Method ◽  
High Dimensional ◽  
Input Output ◽  
Content Type ◽  
Single Board Computer ◽  
Higher Dimensional ◽  
First Time ◽  
Novel Design ◽  
Schematic Design

Purpose This paper presents a novel design method for keyboard circuits. The purpose of this study is to enable a single-board computer with fewer pins to recognize a keyboard system consisting of a large number of switches. Through the study of different kinds of keyboard circuits, a general circuit schematic design method is abstracted. Several experiments are conducted to prove the feasibility of the proposed circuit design method. Design/methodology/approach Conventional circuit schematic diagrams are often limited to two-dimensional planes. Through investigating higher dimensional alternatives, this paper proposes to place components in high-dimensional geometry before connecting all components. A multi-pin switch construction method is proposed to allow the switches to be arranged on the vertices of high-dimensional geometry and be connected sequentially to form the keyboard system. This proposed system can allow a keyboard system consisting of a large number of switches to be recognized by a single-board computer with less available pins. Findings The design scheme proposed in this paper can read more switch states with limited Input/Output pins. With the increase of the number of Input/Output ports and pins, the number of simultaneously identifiable switches increases exponentially, which is suitable for sensor design of array type. Research limitations/implications Compared with the classical keyboard circuits, the circuit designed using the proposed method will lead to a slightly longer recognition time for each key. This can be compensated by a single-board computer with a modestly higher clock speed. Originality/value The circuit schematic design method based on high-dimensional geometry is introduced for the first time. The feasibility of the proposed method is verified by the original experiments. The proposed approach is of importance in guiding the design of new analog and digital sensor circuit systems.

A CMOS combinational circuit-design method using mixed logic concepts

1995 ◽  
Vol 38 (3) ◽  
pp. 266-273 ◽  
Author(s):  
W.B. Hudson ◽  
J.S. Beasley ◽  
J.E. Steelman
Keyword(s):  
Circuit Design ◽  
Design Method ◽  
Combinational Circuit

Design method of triaxial vibration fixture for complex integrated circuits

2021 ◽  
Author(s):  
Xiaoqiang Wang ◽  
Bin Li ◽  
Chuanjin Deng ◽  
Rui Deng ◽  
Ruolei Wang ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Design Method

Research on the anti-cracking ability of large composite girder cable- stayed bridge

2019 ◽  
Author(s):  
Yuhao Huang ◽  
Liu Chao ◽  
Xu Dong
Keyword(s):  
Principal Stress ◽  
Bridge Deck ◽  
Design Method ◽  
Concrete Bridge ◽  
Cable Stayed Bridge ◽  
Composite Girder ◽  
Concrete Bridge Deck ◽  
Bottom Slab ◽  
First Time ◽  
Bridge Tower

<p>Recently, composite girder cable-stayed bridge is widely used in the world. Since the existing design method takes less focus on the principal stress of the top and bottom slab, the cracking problem of the concrete bridge deck has not been solved perfectly yet. Based on the spatial grid model, this paper takes Guan He Bridge in Jiangsu province as an example to analyze this kind of structure. Monitoring the principal stress of the concrete bridge deck is proposed for the first time to study the effect of diagonal crack. The principal stress of the concrete deck in the middle span, the quartile span, one-eighth of the span, the side span, the bridge tower, and the auxiliary pier are observed respectively. Comparing the theoretical values with the measured value, the results show that the actual stress state of the whole concrete bridge deck during construction is in accordance with the theoretical calculation. For composite girder cable-stayed bridge, the concrete bridge deck is prone to crack, so it is very significant to control the quality in the construction stage, which can provide a guarantee for the safety and durability of the structure.</p>

scholarly journals Electrostatic Discharge Current Linear Approach and Circuit Design Method

Energies ◽  
2010 ◽  
Vol 3 (11) ◽  
pp. 1728-1740 ◽  
Author(s):  
Pavlos K. Katsivelis ◽  
Georgios P. Fotis ◽  
Ioannis F. Gonos ◽  
Tryfon G. Koussiouris ◽  
Ioannis A. Stathopulos
Keyword(s):  
Circuit Design ◽  
Discharge Current ◽  
Electrostatic Discharge ◽  
Design Method ◽  
Linear Approach

The Colossus Rebuild

Colossus ◽  
2006 ◽  
Author(s):  
Tony Sale
Keyword(s):  
National Archive ◽  
Science Museum ◽  
Freedom Of Information ◽  
Post Office ◽  
Freedom Of Information Act ◽  
Cad System ◽  
The Us ◽  
First Time ◽  
Second World ◽  
Original Construction

In 1991, some colleagues and I started the campaign to save Bletchley Park from demolition by property developers. At this time I was working at the Science Museum in London restoring some early British computers. I believed it would be possible to rebuild Colossus, but nobody else believed me. In 1993, I gathered together all the information available. This amounted to no more than eight 1945 wartime photographs of Colossus (some of which are printed in this book), plus brief descriptions by Flowers, Coombs, and Chandler, and—crucially—circuit diagrams which some engineers had kept, quite illegally, as engineers always do! I spent nine months poring over the wartime photographs, using a sophisticated modern CAD system on my PC to recreate machine drawings of the racks. I found that, fortunately, sufficient wartime valves were still available, as were various pieces of Post Office equipment used in the original construction. In July 1994, His Royal Highness the Duke of Kent opened the Bletchley Park Museum and inaugurated the Colossus rebuild project. At that time I had not managed to obtain any sponsorship for the project, so my wife Margaret and I decided to put our own money into it, to get it started. We both felt that if the effort was not made immediately there would be nobody still alive to help us with memories of Colossus. Over the next few years various private sponsors came to our aid and some current and retired Post Office and radio engineers formed the team that helped me in the rebuild. In 1995, the American National Security Agency was forced by application of the Freedom of Information Act to release about 5000 Second World War documents into the US National Archive. A list of these documents was put onto the Internet. When I read it I was amazed to see titles like ‘The Cryptographic Attack on FISH’. I obtained copies of these documents and found that they were invaluable reports written by American servicemen seconded to Bletchley Park when America entered the war. I was also fortunate enough to be given access to the then still classified General Report on Tunny (parts of which are published for the first time in this book).

Study on CAD System for Semi-Armor-Piercing Warhead

2012 ◽  
Vol 182-183 ◽  
pp. 778-782
Author(s):  
Yun Bing Yang ◽  
Yong Gang Lu ◽  
Yan Zhou
Keyword(s):  
Design Method ◽  
Functional Characteristic ◽  
Design System ◽  
Functional Modules ◽  
System Software ◽  
Cad System ◽  
Design And Implementation ◽  
Database Visualization ◽  
Key Techniques ◽  
Idef0 Method

Based on integration design method for semi-armor-piercing warhead, the design and implementation of CAD system are illuminated. The whole frame of CAD system is established. The function of integration design system is analyzed by IDEF0 method, and the functional modules are established. System software structure is founded based on system functional characteristic. Based on the technique of database and visualization, the key techniques of system implementation are analyzed in detail, which include database, visualization, etc. Finally, an application example of CAD system is given.

Sign in / Sign up

Export Citation Format

Share Document