Script Files Research Articles

Reconfigurable HDL Library Development Platform for Arithmetic and Matrix Operations

systems used in real-time applications require design tools that could be costly and may have long verification cycles. Many design tools use predefined libraries and costly IPs during these design and verification cycles, and most of these libraries and IPs are static and difficult to modify. Many design requirements are changed during or after design and verification cycle, and designers need to address these changes and modify the system. This could be more time consuming due to verification cycle and static libraries. It is important to have dynamic libraries that could be modified and reconfigured based on the applications. This work creates reconfigurable arithmetic design blocks that could be used for arithmetic and matrix operations. The reconfigured library development system modifies the required library elements using Perl scripting language and verifies them on-the-fly using MATLAB. The development tool improves design time and reduces the verification process, but the key point is to use a unified design that combines some of the basic operations with more complex operations to reduce area and power consumption. The results indicate that using the reconfigurable development tool reduces verification time and increases the productivity. These libraries include structural Verilog HDL codes, testbench files, and MATLAB script files for local customization. Even though the reconfigurable HDL library is used for FPGA design flow, it could be easily modified for VLSI design flow.

OTree: The “bomb” risk elicitation task

Among recently suggested elicitation procedures for risk preferences, the “bomb” risk elicitation task (bret) by Crosetto and Filippin (2013) gained noticeable attention. This article presents a ready-to-use software module for use with oTree (Chen et al., 2015) which allows for easily conducting the bret in numerous different variants, tapping the potential and advantages of state-of-the-art web programming technologies oTree is based on. In a user-friendly and straightforward way, predefined and thoroughly documented variables are specified in a separate file, providing full control over different aspects of game play. Furthermore, the application is prepared for multilingual use, providing a convenient way for translation into different languages. Additionally offered Stata script files facilitate data processing and the evaluation of individual level risk preferences.

An Extensible Game Engine to Develop Animated Facial Avatars in 3D Virtual Environment

Avatar facial expression and animation in 3D Collaborative Virtual Environment (CVE) systems are reconstructed through a complex manipulation of all details that compose it like muscles, bones and wrinkles in 3D space. The need for a fast and easy reconstruction approach has emerged out in the recent years due to its application in various domains; 3D disaster management and military training etc. These details simulation must be as realistic as possible to convey different emotions according to the constantly changing situations in CVE during the runtime. For example, in 3D disaster management, it is important to use dynamic avatar emotions; firefighters should be frightened when dealing with a fire disaster and smiling when treating injures and evacuating habitants. However, the solution of facial animation remains a challenge that restricts the rapid and ease development of facial animation systems. In this work, the author presents extensible game engine architecture to easily produce real-time facial animations using a script atomic action without having to deal with control structures and 3D programing language. The proposed architecture defines various controllers, object behaviors, tactical and graphics rendering, and collision effects to quickly design 3D virtual environment. Firstly, the author gives the concept of atomic expression, and the method to build a parametrized script file according to the atomic expression. Then the author shows the validity of the generated expressions based on the MPEG-4 facial animation framework. Finally, the feasibility of the proposed architecture is tested via a firefighter scenario. The author's approach has the advantages over previous techniques of fitting directly an easy and faster technology with a high degree of programming independence. The author also minimizes the interaction with the game engine during the runtime by injecting dynamically the XML file into the game engine without stopping or restarting the engine.

Towards a more reproducible ecology

Towards a more reproducible ecology

Computer Aided Design of Centrifugal Fan Impeller Using CATIA Software

In this paper, the 3D model of the centrifugal fan impeller will be obtained using CAD software (CATIA). The blade will be obtained with 4 design methods: constant blade width and variable blade angle; hyperbolic blade width and variable blade angle; hyperbolic blade width and constant blade angle; linear blade width and variable blade angle. A comparative analysis of the weight of the blade, as well as of the weight of the rotor composed by cascade of blades, front and rear shrouds will be presented. Two materials have been used for all the elements of the centrifugal fan impeller: steel and aluminium. For computational purposes the MATLAB programming language will be used. The centrifugal fan blade will be designed as untwisted geometry with =2 reference curves (one on the rear shroud and the other one on the front shroud) with different numbers of reference points ={5, 10, 20, 30, 40, 50}. After running the MATLAB script file, the coordinates of reference points of the blade will be obtained for all 4 blade design methods. The transfer of the reference points coordinates from MATLAB workspace to CATIA has been performed using the automatic surface generation method, via an EXCEL macro file. This is the recommended method especially for a big number of reference points.

Rapid integrated parametric CAE modeling method of Linear Variable Differential Transformer based on a script template

Generally, Computing Aided Engineering (CAE) modeling and simulation of Linear Variable Differential Transformer (LVDT) has drawbacks such as the slow modeling speed and instability in simulation results. In this study, a rapid integrated parametric CAE modeling method is proposed for electromagnetic simulation based on a script template implemented in Maxwell electromagnetic simulation software with Visual Basic, so that the proposed method only requires the establishment of a simplified electromagnetic simulation model of a LVDT. The standard and parametric modeling process of LVDT is initially recorded as a script and then identifiers are added into the script to form a script template and transform Computing Aided Design (CAD) parameters to CAE modeling parameters according to parameter constraints of the model. Finally, parameter values are automatically assigned to identifiers in the script template in order to generate the script file through which the accurate CAE model can be created conveniently. The parametric LVDT simulation can not only be rapidly established but also significantly improves the quality of LVDT design in industry. In addition, the proposed method can improve CAD information availability in realizing seamless integration of CAD/CAE modeling in similar sensor product.

Using Functional Languages and Declarative Programming to analyze ROOT data: LINQtoROOT

Modern high energy physics analysis is complex. It typically requires multiple passes over different datasets, and is often held together with a series of scripts and programs. For example, one has to first reweight the jet energy spectrum in Monte Carlo to match data before plots of any other jet related variable can be made. This requires a pass over the Monte Carlo and the Data to derive the reweighting, and then another pass over the Monte Carlo to plot the variables the analyser is really interested in. With most modern ROOT based tools this requires separate analysis loops for each pass, and script files to glue to the results of the two analysis loops together. A framework has been developed that uses the functional and declarative features of the C# language and its Language Integrated Query (LINQ) extensions to declare the analysis. The framework uses language tools to convert the analysis into C++ and runs ROOT or PROOF as a backend to get the results. This gives the analyser the full power of an object-oriented programming language to put together the analysis and at the same time the speed of C++ for the analysis loop. The tool allows one to incorporate C++ algorithms written for ROOT by others. A by-product of the design is the ability to cache results between runs, dramatically reducing the cost of adding one-more-plot and also to keep a complete record associated with each plot for data preservation reasons. The code is mature enough to have been used in ATLAS analyses. The package is open source and available on the open source site CodePlex.

Design and Simulation of Wireless Sensor Network in NS2

This paper provides a study of how to design and implement Wireless Sensor Network (WSN) in NS2 (Network Simulator version 2).A wireless sensor network (WSN) consists of a number of sensors which are spatially distributed and are capable of computing, communicating and sensing.NS2 is an event-driven simulation tool that is useful in studying the dynamic nature of computer networks.NS2 provides users with executable command ns which take on input argument, which is the name of a Tool Command Language (TCL) simulation scripting file. Network Animator (NAM) is a TCL based animation tool for viewing network simulation traces and real world packet traces. Scripting languages such as AWK (Aho Weinberger Kernighan) script and PERL script can be used to calculate the performance metrics using these trace files. A simple simulation consisting of 17 nodes and calculation of average end-to-end delay and average energy consumption is shown.

Comparative Study of Blade Shape Design of Centrifugal Fan Impeller

For a centrifugal fan impeller the blade shape can be defined using two parameters: the blade angle and the blade width. There are different design methods depending on the assumption made on both the blade width and the blade angle. In this paper four design methods are presented: constant blade width and variable blade angle; hyperbolic blade width and variable blade angle; hyperbolic blade width and constant blade angle; linear blade width and variable blade angle. The sequential algorithm for solving the characteristic system of equations, which defines the blade geometry, is implemented in a MATLAB script file, for which principal code lines are explained. In the solving process of the characteristic system of equations for all four design methods considered, different relationships for relative velocity are obtained. The comparative graphical analysis of impeller blades obtained by all of the four design methods, as well as the blade geometry parameters is presented.

Poster - Thur Eve - 55: An automated XML technique for isocentre verification on the Varian TrueBeam

Isocentre verification tests, such as the Winston-Lutz (WL) test, have gained popularity in the recent years as techniques such as stereotactic radiosurgery/radiotherapy (SRS/SRT) treatments are more commonly performed on radiotherapy linacs. These highly conformal treatments require frequent monitoring of the geometrical accuracy of the isocentre to ensure proper radiation delivery. At our clinic, the WL test is performed by acquiring with the EPID a collection of 8 images of a WL phantom fixed on the couch for various couch/gantry angles. This set of images is later analyzed to determine the isocentre size. The current work addresses the acquisition process. A manual WL test acquisition performed by and experienced physicist takes in average 25 minutes and is prone to user manipulation errors. We have automated this acquisition on a Varian TrueBeam STx linac (Varian, Palo Alto, USA). The Varian developer mode allows the execution of custom-made XML script files to control all aspects of the linac operation. We have created an XML-WL script that cycles through each couch/gantry combinations taking an EPID image at each position. This automated acquisition is done in less than 4 minutes. The reproducibility of the method was verified by repeating the execution of the XML file 5 times. The analysis of the images showed variation of the isocenter size less than 0.1 mm along the X, Y and Z axes and compares favorably to a manual acquisition for which we typically observe variations up to 0.5 mm.

Dynamic Finite Elements Analysis of Coaxial Dual Rotor System Using MatLab

Dynamic analysis of coaxial dual rotor system was demonstrated in this paper through the use of finite element script files developed using matlab. A coaxial rotor system, generally employed in the aircraft engines to save space and keep the weight to minimum, and for the importance of this application it was considered for this analysis. The system was modeled using eight finite elements only with different shafts and bearings properties. The results obtained in this investigation were closed to other previous studies found in the literature. The developed matlab script files proved to be very essential for designers and analyst of coaxial rotors.

Numerical Regge pole analysis of resonance structures in elastic, inelastic and reactive state-to-state integral cross sections

We present a detailed description of a FORTRAN code for evaluation of the resonance contribution a Regge trajectory makes to the integral state-to-state cross section (ICS) within a specified range of energies. The contribution is evaluated with the help of the Mulholland formula (Macek et al., 2004) and its variants (Sokolovski et al., 2007; Sokolovski and Akhmatskaya, 2011). Regge pole positions and residues are obtained by analytically continuing S-matrix element, evaluated numerically for the physical values of the total angular momentum, into the complex angular momentum plane using the PADE_II program (Sokolovski et al., 2011). The code decomposes an elastic, inelastic, or reactive ICS into a structured, resonance, and a smooth, ‘direct’, components, and attributes observed resonance structure to resonance Regge trajectories. The package has been successfully tested on various models, as well as the F+H2→HF+H benchmark reaction. Several detailed examples are given in the text. Program summaryProgram title: ICS ReggeCatalogue identifier: AEST_v1_0Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEST_v1_0.htmlProgram obtainable from: CPC Program Library, Queen’s University, Belfast, N. IrelandLicensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.htmlNo. of lines in distributed program, including test data, etc.: 71962No. of bytes in distributed program, including test data, etc.: 1405035Distribution format: tar.gzProgramming language: FORTRAN 90.Computer: Any computer equipped with a FORTRAN 90 compiler.Operating system: UNIX, LINUX.RAM: 256 MbClassification: 16.8.External routines: MPFUN (http://crd-legacy.lbl.gov/~dhbailey/mpdist/), QUADPACK http://www.netlib.org/quadpack/ (included in the distribution file)Subprograms used:Cat IdTitleReferenceAEHO_v1_0PADE IICPC 182 (2011) 448Nature of problem:The package extracts the positions and residues of resonance poles from numerical scattering data supplied by the user. This information is then used for the analysis of resonance structures observed in elastic, inelastic and reactive integral cross sections.Solution method:The S-matrix element is analytically continued in the complex plane of either energy or angular momentum with the help of Padé approximation of type II. Resonance Regge trajectories are identified and their contributions to the integral cross section are evaluated.Unusual features:Use of multiple precision MPFUN package.Additional comments:The following are included in the distribution file: PADE II, MPFUN and QUADPACK packages, validation suites, script files, input files, readme files, Installation and User GuideRunning time:From several minutes to hours depending on the number of energies involved, the precision level chosen and the number of iterations performed.

Numerical Computation for Effective Mechanical Properties of Honeycomb Core Structure

This paper combined the homogenization method with finite element method. The equivalent mechanical coefficients of the hexagonal aluminum honeycomb core were computed on ABAQUS platform by developing the user subroutine UEXPAN ( ) and Python script file. The results obtained with homogenization method were compared with those obtained with energy method, and it showed the feasibility of homogenization method. Then the effects of thickness-to-length ratio t/l on equivalent mechanical coefficients were taken into account. The results suggested that the equivalent in-plane mechanical parameters vary non-linearly with respect to t/l, while the equivalent out-of-plane mechanical parameters vary linearly with respect to t/l, which will provide reference for optimizing the design of honeycomb core structure.

Secure Data Hiding in Binary Text Document for Authentication

In an effort to detect a secure technique for the text document, we examined the Steganography techniques for secure data transmission. Steganography deals with the understanding of information hiding in a way that only sender and receiver can understand and realize the subsistence. It is a method of hiding the transmitted data in the f orm of codes that is hiding the data in image text etc, although in the proposed work we are concerned about the text data hiding in text document, and thus the author of the proposed work has used illustrations in DOC, PPT, TXT, MATLAB script file(.M) formats. There are various methods of information hiding but in text Steganography it is not easy to hide information as text data provides us le ss redundant space for concealing the secrets. Simulation outcomes demonstrate that data embedding based on coding procedure pursued has no traceable distortions in the host file. The results for the proposed work are obtained using the MATLAB version 7.10.0.499(R2010a).

Open source software to control Bioflo bioreactors.

Bioreactors are designed to support highly controlled environments for growth of tissues, cell cultures or microbial cultures. A variety of bioreactors are commercially available, often including sophisticated software to enhance the functionality of the bioreactor. However, experiments that the bioreactor hardware can support, but that were not envisioned during the software design cannot be performed without developing custom software. In addition, support for third party or custom designed auxiliary hardware is often sparse or absent. This work presents flexible open source freeware for the control of bioreactors of the Bioflo product family. The functionality of the software includes setpoint control, data logging, and protocol execution. Auxiliary hardware can be easily integrated and controlled through an integrated plugin interface without altering existing software. Simple experimental protocols can be entered as a CSV scripting file, and a Python-based protocol execution model is included for more demanding conditional experimental control. The software was designed to be a more flexible and free open source alternative to the commercially available solution. The source code and various auxiliary hardware plugins are publicly available for download from https://github.com/LibourelLab/BiofloSoftware. In addition to the source code, the software was compiled and packaged as a self-installing file for 32 and 64 bit windows operating systems. The compiled software will be able to control a Bioflo system, and will not require the installation of LabVIEW.

Instrument Corrections by Time-Domain Deconvolution

Online Material: Script and input files illustrating the TDD package. Many types of seismic analysis require ground‐motion data in physical units of displacement, velocity, or acceleration. Because seismometers do not respond uniformly to all frequencies, scientists must deconvolve the instrument response from recorded data. However, popular deconvolution methods violate causality and introduce acausal artifacts to deconvolved traces, which are unacceptable in some applications. In this paper, we discuss a new method using recursive filters that we consider superior for many purposes. One simple and common method of instrument response deconvolution is spectral division by the analog instrument response ![Graphic][1] (1)in which S is the instrument’s sensitivity, K is the normalization constant, and P and Z are the poles and zeros. This method should be avoided because it fails to consider effects of digitization on the instrument response. Failing to consider these effects results in inaccurate phase and amplitude spectra, and can introduce acausal precursory oscillations to the signal. Another common method is that of the TRANSFER command in the widely used software package SAC (University of California, 2012). This command uses a zero‐phase high‐pass or band‐pass filter (through the freqlimits option) to ensure the stability of the result. This filter is acausal and, therefore, problematic as well. Acausal artifacts can cause serious analytic problems. One obvious case is picking wave‐arrival times and polarities. If causality is not preserved in deconvolution, phases may appear to arrive earlier in deconvolved data than in raw data, causing picks to be inaccurate and biased. Additionally, some applications analyze small signals that are partially overwritten by later‐arriving, higher‐amplitude (even clipped) phases; we show an example of this in the Deconvolution of Partially Clipped Data section. Acausal precursory oscillations of the stronger … [1]: /embed/inline-graphic-1.gif

Utilizing Human-to-Human Conversation Examples for a Multi Domain Chat-Oriented Dialog System

This paper describes the design and evaluation of a method for developing a chat-oriented dialog system by utilizing real human-to-human conversation examples from movie scripts and Twitter conversations. The aim of the proposed method is to build a conversational agent that can interact with users in as natural a fashion as possible, while reducing the time requirement for database design and collection. A number of the challenging design issues we faced are described, including (1) constructing an appropriate dialog corpora from raw movie scripts and Twitter data, and (2) developing an multi domain chat-oriented dialog management system which can retrieve a proper system response based on the current user query. To build a dialog corpus, we propose a unit of conversation called a tri-turn (a trigram conversation turn), as well as extraction and semantic similarity analysis techniques to help ensure that the content extracted from raw movie/drama script files forms appropriate dialog-pair (query-response) examples. The constructed dialog corpora are then utilized in a data-driven dialog management system. Here, various approaches are investigated including example-based (EBDM) and response generation using phrase-based statistical machine translation (SMT). In particular, we use two EBDM: syntactic-semantic similarity retrieval and TF-IDF based cosine similarity retrieval. Experiments are conducted to compare and contrast EBDM and SMT approaches in building a chat-oriented dialog system, and we investigate a combined method that addresses the advantages and disadvantages of both approaches. System performance was evaluated based on objective metrics (semantic similarity and cosine similarity) and human subjective evaluation from a small user study. Experimental results show that the proposed filtering approach effectively improve the performance. Furthermore, the results also show that by combing both EBDM and SMT approaches, we could overcome the shortcomings of each.

Parameter Estimation in Different Enzyme Reactions

Enzyme kinetic parameters have been estimated using MATLAB software via the Wilkinson non-linear regression technique. The MATLAB script file written to implement this technique is short and very straightforward. Several software tools are commercially available for this purpose, with many graphical user interface (GUI) features. A routine use of these packages might offer immediate satisfaction of interactive hands-on experience; but in some cases the researcher might wish to write his/her own code and compare the results for further confirmation. Today MATLAB is in use in almost all the schools and laboratories as a standard software tool. So this paper is aimed at helping enzyme researchers to make use of this powerful software for estimation of parameters. It enables the incorporation of the analytical steps behind parameter estimation in an easy-to-follow manner and furnishes better visualization.

고양이 치수에서 열 자극으로 유도된 신경병증 염증에서 치수 혈류량 변화

본 연구는 열 자극으로 유도된 신경성 염증 상태에서 혈류량의 변화와 histamine의 치수혈류 조절에 관해 유기적 관계를 연구함으로써 치수혈류 조절기전을 밝히고자 하였다. 연구방법은 열 마리의 고양이를 전신마취 하에 사용되었으며, 치수혈류의 변화는 레이저 도플러 측정계(Periflux 4001, Stockholm, Sweden)을 사용하여 측정 하였다. 레이저 도플러 측정하는 프로브는 하악 견치의 치면에 위치하였다. 열 자극은 입력/출력 장치와 열 자극 제어 스크립트 파일을 사용하여 치아에 적용하였다. 열(<TEX>$40-65^{\circ}C$</TEX>)에 따라 치수 혈류량이 증가를 확인하였으며, <TEX>$55^{\circ}C$</TEX>에서 가장 큰 변화가 나타났다. 열 자극의 변화가 없는 <TEX>$45^{\circ}C$</TEX>에서 Histamine(<TEX>$5{\mu}g/kg/1ml$</TEX>)를 치아와 가까운 설 동맥으로 주입 시 열 자극만 처치한 그룹보다 현저한 증가가 나타났다. 본 연구는 열적 자극에 의해 발생된 신경성 염증상태에서 치수혈류 변화와 이에 히스타민의 기능적으로 관여함을 나타내주며, 치아 염증 상태의 기전을 밝힐 수 있는 가능성을 보여준다. This study examined the involvement of histamine in heat-induced changes in pulpal blood flow(PBF) to determine the mechanism of neurogenic inflammation in feline dental pulp. The experiments were carried out in 10 felines anesthetized with sodium pentobartial and histamine injected into the dental pulp through the external carotid artery. The change in the pulpal PBF was measured using a laser Doppler flowmeter(Periflux 4001, Stockholm, Sweden). The probe of laser Doppler flowmeter was placed on the buccal surface of the ipsilateral canine teeth. Heat was applied to the tooth using a heat stimulator controlled script file with an input/output device. The application of heat (<TEX>$40-65^{\circ}C$</TEX>) induced a significant increase in PBF. The application of histamine(<TEX>$5{\mu}g/kg/1ml$</TEX>) followed by heat(<TEX>$45^{\circ}C$</TEX>) resulted in an increase in PBF. Therefore, the results of the present study showed that heat and histamine are capable of vasoconstriction caused by neurogenic inflammation in feline dental pulp. In addition, neurogenic inflammation plays an active role in modulating the microcirculation of the dental pulp.

A Lightweight-Leveled Software Automated Test Framework

To resolve the problem of a large amount of automated test scripts and test data files, through the test tool QTP, data-driven and keyword-driven testing mechanism, a test automation framework based on three layer data-driven mechanism is designed, including the design of the TestSet managing test case files, the design of the TestCase storing test cases and the design of the TestData storing test data.Through controlling the test scale and applying the test data pool, reconfigurable and optimization of test scripts are designed. The methods above can decouple the test design and the script development, make test cases and data show a more humane design, make test scripts and test data on the business level optimized and reusable, and make the number of script files and the test data files reache a minimum, which reduces the occupied space.