scholarly journals Digital design and parameters optimization for plasmonic circuits

2019 ◽  
Vol 220 ◽  
pp. 03025
Author(s):  
Alexander Shesterikov ◽  
Andrey Leksin ◽  
Alexei Prokhorov
Keyword(s):  
Quantum Dots ◽  
Computer Aided Design ◽  
Surface Plasmon Polariton ◽  
Parameters Optimization ◽  
Digital Design ◽  
Plasmonic Waveguides ◽  
Full Field ◽  
Graphene Layers ◽  
Aided Design ◽  
First Time

The mathematical models for the CAD-platform of plasmonic circuits design have been developed. This platform provides the efficient framework for computer-aided design of semiconductor quantum dots and full-field electromagnetic simulation of surface plasmon-polariton propagation in plasmonic waveguides. The topology of an all-plasmonic devices based on graphene layers and quantum dots is proposed for the first time.

The Measurement of Stress and Vibration Data in Turbine Blades and Aeroengine Components

1988 ◽  
Author(s):  
D. E. Oliver ◽  
D. J. Berry
Keyword(s):  
Computer Aided Design ◽  
Turbine Blades ◽  
Thermoelastic Effect ◽  
Full Field ◽  
Experimental Stress Analysis ◽  
Vibration Data ◽  
Set Up ◽  
Stress Measuring ◽  
Aided Design ◽  
Aeroengine Components

Instrumentation utilizing the thermoelastic effect has become established in recent years as an important tool for experimental stress analysis. This instrumentation provides full field stress data in a digitized form that can be integrated with computer aided design methods for experimental optimization and validation of designs. More recently the same full field data acquisition techniques have been applied to vibration measurements. As a result stress and vibration data can be obtained from the same experimental set-up. The paper describes theoretical aspects of the thermoelastic effect upon which the stress measurements are based. It goes on to show how laser Doppler interferometric techniques can be incorporated into stress measuring instrumentation. Results from typical aerospace components are used to illustrate applications of commercially available instrumentation (Fig. 1).

scholarly journals Exacting Standards

2000 ◽  
Vol 122 (12) ◽  
pp. 71-72
Keyword(s):  
North Carolina ◽  
Computer Aided Design ◽  
Point Cloud ◽  
Cloud Data ◽  
Design Concepts ◽  
Research Triangle ◽  
Aided Design ◽  
First Time ◽  
Model Digitizing ◽  
Polygonal Model

This article discusses integration of handcrafted parts into computer-aided design (CAD)-designed bikes. The digital duplication process started when Harley Davidson sent Schaefer an assembly-ready Dyna Wide gas tank. It took two days of work to prepare the tank and scan it with an ATOS white-light 3D scanner, made by GOM mbH (for Gesellschaft fur Optische Messtechnik) in Braunschweig, Germany. Using Geomagic Studio, the software from Raindrop Geomagic, Advanced Design Concepts first converted the point cloud to a polygonal model. The 3D point cloud data were brought into Geomagic Studio, software from Raindrop Geomagic of Research Triangle Park, North Carolina. Using Geomagic, ADC first converted the point cloud to a polygonal model. The next step of processing created a non-uniform rational b–spline (NURBS) model. Digitizing the Dyna Wide gas tank represented the first time that Advanced Design Concepts had used Geomagic Studio on a Harley-Davidson job. According to an expert, the company now has three people devoted to working with the program.

scholarly journals Analysis of Engineering Accreditation Process and Outcomes: Lessons Learned for Successful First Time Application

2020 ◽  
Vol 19 (9) ◽  
pp. 281-300
Author(s):  
Tahar Ayadat ◽  
Andi Asiz
Keyword(s):  
Computer Aided Design ◽  
The United States ◽  
Accreditation Process ◽  
Lessons Learned ◽  
Engineering Programs ◽  
Engineering Program ◽  
Senior Design ◽  
Program Compliance ◽  
Aided Design ◽  
First Time

The aims of the paper are to share and analyze engineering accreditation experience starting from the preparation through the outcome, and to discuss lessons learned particularly for first-time applicants. Securing accreditation from a well-recognized international body, such as the Accreditation Board for Engineering and Technology (ABET) can indicate quality of an engineering program. To qualify for an accreditation up to six- to seven-year period, an engineering program must meet a set of accreditation standards or criteria. The article is not limited only for new engineering programs outside the United States who are willing to pursue engineering accreditation from ABET, but it is applicable for an existing accredited program who will undergo next accreditation cycle. The authors presented and analyzed detail accreditation experience for a new established Civil Engineering (CE) Program at Prince Mohammad bin Fahd University (PMU) in Saudi Arabia. Although the ABET website provides detail procedure for the accreditation steps, the detail cases experienced by the PMU CE program will enrich knowledge on how to prepare and handle successful international accreditation. The authors also discussed issues raised during the accreditation activities, including program compliance with the nine ABET criteria, and presented key lessons to prepare for a smooth accreditation process. The main significant result of the accreditation exercise about continuous improvement was summarized in term of the curriculum upgrade, including adding another semester for senior design course and offering new sustainability engineering course, and adding computer aided design course at the early semester.

Performance Comparison of InAs Based DG-MOSFET with Respect to SiO2 and Gate Stack Configuration

2020 ◽  
Vol 10 (4) ◽  
pp. 419-424
Author(s):  
Sanjit K. Swain ◽  
Sudhansu M. Biswal ◽  
Satish K. Das ◽  
Sarosij Adak ◽  
Biswajit Baral
Keyword(s):  
Oxide Layer ◽  
Computer Aided Design ◽  
Cutoff Frequency ◽  
Performance Comparison ◽  
Oxide Material ◽  
Gate Stack ◽  
Time Gate ◽  
Aided Design ◽  
First Time ◽  
Tcad Simulations

Objective:: In this proposed work, the Analog, RF and Linearity performances of a DGMOSFET have been analyzed by considering InAs as a channel material. Methods: For the very first time, gate stack techniques in this device have been incorporated and a comparative analysis is conducted with respect to SiO2 oxide layer. The variations in different patterns of oxide layer and their comparison have been thoroughly investigated to have a better understanding of various performance parameters. A thorough analysis of the key figure-of-merits such as trans-conductance factor, transconductance generation factor (TGF), gate capacitance, cutoff frequency (fT), maximum frequency of oscillation (fmax), GBW and various linearity parameters such as gm2, gm3,VIP2, VIP3, IIP3, has been studied with respect to SiO2 oxide material and gate stack technology. Result:: The simulation results revealed that the performances of the device are sensitive to both the oxide materials and it was also inferred that gate stack technology gave a better performance over SiO2 oxide layer. Conclusion:: These results have significant effects in analog, RF and linearity operations. In this work, computer aided design (TCAD) simulations by 2D ATLAS, Silvaco International have been used.

IVECS: An Interactive Virtual Environment for the Correction of .STL Files

1996 ◽  
Author(s):  
Stéphane M. Morvan ◽  
Georges M. Fadel
Keyword(s):  
Virtual Environment ◽  
Computer Aided Design ◽  
Digital Design ◽  
Free Form ◽  
Fully Integrated ◽  
Current Trends ◽  
Computer Aided ◽  
Design Software ◽  
Aided Design ◽  
Interactive Virtual Environment

Abstract The current trends towards fully integrated digital design processes depend on the use of physical mockups. Free Form Fabrication extracts data from Computer Aided Design software and transforms them into a tangible reality. Virtual Reality (VR) provides a remarkable complement to these techniques. The system presented responds to the needs to ensure accurate data and quick prototyping by providing visualization and edition of Computer Aided Design files in a Virtual Environment. This paper expands on the use of VR to virtually prototype artifacts represented by .STL files. It describes different techniques to interact with the object in the VE. Besides manipulating the object, various methods to display the triangles generated by tessellation are detailed and ways to correct the files are illustrated.

Analysis of Computer-Aided Design Software Used in Home Textiles of Digital Design

2015 ◽  
Vol 751 ◽  
pp. 293-297
Author(s):  
Bin Feng ◽  
Hai Lian Deng ◽  
Li Ping Yang
Keyword(s):  
Computer Aided Design ◽  
Purchase Intention ◽  
Three Dimensional ◽  
Digital Design ◽  
Textile Design ◽  
Software Application ◽  
Computer Aided ◽  
Consumer Purchase Intention ◽  
Design Software ◽  
Aided Design

This paper will discuss computer-aided design software use in textile design, from the development of computer-aided design applications and home textiles design, software is the core of computer-aided design in textile design, graphic combined with three-dimensional software, building the systematic of home textiles design and computer-aided design to enhance the artistic beauty of textile design. Secondly, introduce the two-dimensional and three-dimensional software application in fabric pattern and textile design. We can see the convenience of computer-aided design, which combines technology and art in one. And from the comparison of plane and solid software, both proposed to build a systematic mutual, for textile design, which is based on the performance requirements and the effect of artistic design, and the theoretical analysis of consumer purchase intention and behavior; and discussing from the beauty of color、 formal and spatial three aspects of computer-aided design to enhance the artistic beauty of textile design.

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