Thermodynamic properties of a few-particle system: a computer-based investigation

1998 ◽  
Vol 19 (3) ◽  
pp. 221-230 ◽  
Author(s):  
L Bellomonte ◽  
R M Sperandeo-Mineo
Keyword(s):  
Thermodynamic Properties ◽  
Particle System ◽  
System A ◽  
Computer Based

Text-to-Speech Synthesis

2011 ◽  
pp. 957-963
Author(s):  
Mahbubur R. Syed ◽  
Shuvro Chakrobartty ◽  
Robert J. Bignall
Keyword(s):  
Speech Production ◽  
Speech Synthesis ◽  
Synthetic Speech ◽  
Practical Application ◽  
Text To Speech ◽  
Synthesis System ◽  
System A ◽  
Vocal System ◽  
Text To Speech Synthesis ◽  
Computer Based

Speech synthesis is the process of producing natural-sounding, highly intelligible synthetic speech simulated by a machine in such a way that it sounds as if it was produced by a human vocal system. A text-to-speech (TTS) synthesis system is a computer-based system where the input is text and the output is a simulated vocalization of that text. Before the 1970s, most speech synthesis was achieved with hardware, but this was costly and it proved impossible to properly simulate natural speech production. Since the 1970s, the use of computers has made the practical application of speech synthesis more feasible.

An Approximate Method to Obtain Thermodynamic Gas Properties for Use in Gas Turbines

2014 ◽  
Author(s):  
N. A. Cumpsty ◽  
A. J. Marquis
Keyword(s):  
Thermodynamic Properties ◽  
Approximate Method ◽  
Gas Turbines ◽  
Combustion Products ◽  
Empirical Approach ◽  
Polynomial Approximations ◽  
Adequate Accuracy ◽  
Computer Based ◽  
Educational Course ◽  
Gas Properties

The calculation of the performance of gas turbines, turbochargers, compressors and turbines requires the thermodynamic properties of the gases. Tables of properties exist which are effectively exact, but using these tables is tedious and far from practical in computer-based calculations. Representing tabulated results with polynomial approximations is inconvenient and prone to error in implementation. For teaching and simple calculations simple approximations, such as γ = 1.4 for unburned air and γ = 1.3 for combustion products, are sometimes used, but this is far from wholly satisfactory. This paper describes and discusses a simple empirical approach which will give adequate accuracy for many purposes but is simple enough to be used as part of an educational course.

System of Measuring the Sub-Pixel Edge of Linear CCD Based on Multi-Scale Transform

2012 ◽  
Vol 433-440 ◽  
pp. 6503-6508
Author(s):  
Yu Mei Wang ◽  
Guo Sheng Xu
Keyword(s):  
Linear Array ◽  
Threshold Level ◽  
Comparison Method ◽  
Multi Scale ◽  
System A ◽  
Grey Scale ◽  
Linear Ccd ◽  
Edge Detecting ◽  
Computer Based ◽  
Edge Detection Method

In order to improve the precision, speed, integration and reliability of the linear CCD system, a multi-scale compress derivation edge detection method of one-dimension image based on wavelet multi-scale transform is presented in this paper. The inspecting system of defects in based on CCD obtains signals of defects in with irradiation of parallel light by using linear array CCD control circuit. The defect signals were collected and transferred by using virtual oscillograph DSO-2902, and the defect signals were analyzed and processed by using computer. Based on it, Before the CCD signal entered the edge detecting system, it had been filtered by filter. Utilizing the characteristic that the grads of grey scale breaks at the edge of picture, the pixel edge of picture was detected by the algorithm which can be used to detect the edge of picture automatically. multi-scale transform used to detect the sub-pixel edge of picture. This method which is more accurate than former single threshold level comparison method can enhance edge and remove noise effectively.

Role of Value Compatibility in it Adoption

2007 ◽  
Vol 22 (1) ◽  
pp. 69-78 ◽  
Author(s):  
Deborah Bunker ◽  
Karl-Heinz Kautz ◽  
Anne Luu Thanh Nguyen
Keyword(s):  
It Adoption ◽  
System A ◽  
Functional Factors ◽  
Computer Based ◽  
It Innovation ◽  
Self Service ◽  
And Training ◽  
Potential Use

Compatibility has been recognised as an important element in the adoption of IT innovations in organisations but as a concept it has been generally limited to technical or functional factors. Compatibility is also significant, however, with regard to value compatibility between the organisation, and the adopted IT innovation. We propose a framework to determine value compatibility analysing the organisation's and information system's structure, practices and culture, and explore the value compatibility of an organisation with its adopted self-service computer-based information system. A case study was conducted to determine the congruence of an organisation's value and IT value compatibility. This study found that there was a high correspondence in the organisational structure and practice dimensions; however, there were organisational culture disparities. The cultural disparities reflected the self-service acceptance and training issues experienced by the case organisation. These findings add insight into the problems experienced with value compatibility and the adoption of the information systems, and show the potential use of the proposed framework in the detection of such problems.

Application of Genetic Algorithm for Nozzle Parameters Optimization of Waterjet Propulsion System

2012 ◽  
Vol 157-158 ◽  
pp. 604-607
Author(s):  
Xuan Ling ◽  
Xu Dong Wang
Keyword(s):  
Genetic Algorithm ◽  
Cfd Simulation ◽  
Simulation Analysis ◽  
Optimization Technique ◽  
Propulsion System ◽  
Parameters Optimization ◽  
Integrated Method ◽  
System A ◽  
Design Cycle ◽  
Computer Based

Waterjet propulsion system have been increasingly used in the world due to its advantage of good maneuverability, operability, less vibration etc. The full understanding of waterjet reaction thrust is the preliminary step for the design of waterjet system. A recent research in this area is optimizing the nozzle structure of waterjet propulsion system to increase the waterjet reaction thrust as much as possible. In order to obtain the optimal parameters of nozzle, a new integrated method combining genetic algorithm with CFD simulation analysis is put forward in this paper. The integrated method will not only shorten the system design cycle, it will also develop optimization technique to realize the potential of computer based design automation. Finally, the optimal results are presented and discuss.

scholarly journals An Intelligent Characteristics Analyzer of PV Module

2013 ◽  
Vol 61 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Liton Kumar Biswas ◽  
Md. Habibur Rahman ◽  
Saiful Haque
Keyword(s):  
Low Cost ◽  
Operating Point ◽  
C Language ◽  
Digital Counter ◽  
System A ◽  
Pv Module ◽  
Active Load ◽  
Pv Modules ◽  
Computer Based ◽  
Fully Automatic

This paper describes construction, development and testing of a low cost PV module characteristics analyzer. A computer-based, fully automatic characteristic analyzer has been designed and developed using locally available components. The system is capable of acquiring current and voltage of PV module by varying the operating point to draw the IV curve and to analyze the module characteristics. In this system, a Pico ADC-16 has been used to convert the analog data into digital. The module current and voltage is changed by using a transistor active load. The operating point of the active load has been changed by the analog output of a DAC and the DAC is driven by a digital counter. A driver program has been developed for the system using C language. Finally, the system was assembled and the characteristics of some PV modules of different power capacity have been studied. It is found that, the system is capable of finding characteristics of PV modules up to the capacity of 75Watt. Dhaka Univ. J. Sci. 61(1): 65-70, 2013 (January) DOI: http://dx.doi.org/10.3329/dujs.v61i1.15098

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