The paper presents the method of local plastic buckling to determine the available ductility of a steel structure subjected to seismic actions. The specialized computer program DuctRot-M is developed with the aim of d...
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The paper presents the method of local plastic buckling to determine the available ductility of a steel structure subjected to seismic actions. The specialized computer program DuctRot-M is developed with the aim of determining the ultimate plastic rotation. The main factors influencing the rotation capacity are included in program: section type, material properties, member dimensions, moment variation, buckling type, influence of strain rate, influence of cyclic loading, etc. The validation of computer program is performed comparing the obtained values with experimental and numerical results. The result accuracy is confirmed by this comparison. Due also to the friendly interface, the program is useful in design practice. (C) 2003 Elsevier Ltd. All rights reserved.
In this article, we present a new implementation of an amplitude-independent method for continuous-scale sleep depth estimation. Having been implemented as an add-on analysis module under commercially available biosig...
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In this article, we present a new implementation of an amplitude-independent method for continuous-scale sleep depth estimation. Having been implemented as an add-on analysis module under commercially available biosignal recording and analysis software, it can be easily applied in clinical routine. The software gives the user full freedom to change all the analysis parameters inside theoretical limits. Computational sleep depth profiles produced by the presented software compare favourably with visual classifications. Future work will concentrate on systematic optimization of analysis parameters, further evaluation of the method with disturbed sleep and application of the method for automated adaptive sleep analysis. (c) 2006 Elsevier Ireland Ltd. All rights reserved.
A computer program written in BASIC II is described which allows the toxicity determination of industrial effluents to be calculated. Parameters of interest incorporated are LC50, 95% confidence intervals, intercept, ...
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A computer program written in BASIC II is described which allows the toxicity determination of industrial effluents to be calculated. Parameters of interest incorporated are LC50, 95% confidence intervals, intercept, logit slope, and correlation coefficient. Calcualtion of in-stream waste concentration to determine whether the particular effluent needs to be pretreated or not is also included in the program based on the Biomonitoring protocol prepared by NPDES (USA EPA, 1979). This program can be run on a microcomputer for routine studies.
A program for the evaluation of non-isothermal kinetic parameters is presented. The program allows evaluation of the kinetic parameters under constant heating rate or constant reaction rate conditions. The simulation ...
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A program for the evaluation of non-isothermal kinetic parameters is presented. The program allows evaluation of the kinetic parameters under constant heating rate or constant reaction rate conditions. The simulation of temperature vs. conversion curves is also possible. A regression method is included, which allows a discrimination between various conversion functions and also evaluation of the activation parameters. The program was tested with various simulated decomposition curves and the non-isothermal decomposition curves of calcium oxalate. The program is written in Visual BASIC 4.0 and can be run under Windows 95 (C).
The determination of fluorescence resonance energy transfer (FRET) with flow cytometry (FCET) is one of the most efficient tools to study the proximity relationships of cell membrane components in cell populations on ...
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The determination of fluorescence resonance energy transfer (FRET) with flow cytometry (FCET) is one of the most efficient tools to study the proximity relationships of cell membrane components in cell populations on a cell-by-cell basis. Because of the high amount of data and the relatively tedious calculations, this procedure should be assisted by powerful data processing software. The currently available programs are not able to fulfill this requirement. We developed a Windows-based program to calculate fluorescence resonance energy transfer efficiency values from list mode flow cytometry standard (FCS) files. This program displays the measured data in standard plots by generating one- and two-parameter histograms on linear or logarithmic scales. A graphical gating tool allows the user to select the desired cell population according to any combination of the parameter values. The program performs several statistical calculations, including mean, S.D., percent of the gated data. We have implemented two types of data sheet for FRET calculations to aid and guide the user during the analysis: one with population- mean-based autofluorescence correction and the other with spectrum-based cell-by-cell autofluorescence correction. In this paper, we describe the gating algorithms, the file opening procedure and the rules of gating. The structure of the program and a short description of the graphical user-interface (GUI) are also presented in this article. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
computer program "TRIO-DRAW" was constructed to calculate and display ion trajectories and simulate overall ion optical characteristics such as image shape and mass resolution. Flight-time information can be...
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computer program "TRIO-DRAW" was constructed to calculate and display ion trajectories and simulate overall ion optical characteristics such as image shape and mass resolution. Flight-time information can be obtained as well. (C) 1999 Elsevier Science B.V. All rights reserved.
Modifications and additions to the MIPROPS computer program for calculating the thermophysical properties of 17 fluids are described. These changes include adding new fluids, new properties and a new user interface to...
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Modifications and additions to the MIPROPS computer program for calculating the thermophysical properties of 17 fluids are described. These changes include adding new fluids, new properties and a new user interface to the program;the new program will be available from the Standard Reference Data program of the National Institute of Standards and Technology. The new program allows the user to select the input and output parameters and the units to be displayed for each parameter.
A microcomputer program for time series forecasting has been developed in GW-BASIC for Zenith 150 microcomputers. The program uses such forecasting methods as: 1. single exponential smoothing, 2. adaptive-response-...
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A microcomputer program for time series forecasting has been developed in GW-BASIC for Zenith 150 microcomputers. The program uses such forecasting methods as: 1. single exponential smoothing, 2. adaptive-response-rate single exponential smoothing, and 3. Brown's double exponential smoothing. These methods are used to forecast the future values of a given time series. The program generates plots of the original time series and forecasted series as well as forecasting errors. It computes 90% and 95% confidence intervals for forecasted values and calculates such statistics as: 1. mean squared error, 2. mean absolute percentage error, 3. mean absolute error, 4. Durbin-Watson statistic, and 5. Theil's U statistic. Example problems illustrate the use of the program. The program includes a top-level menu displaying basic options, including: 1. a data entry option used to create time series of up to 200 periods, 2. editing and modifying existing time series, 3. obtaining a printout of observations in a time series, and 4. viewing a plot of a given time series.
A computer program is developed for the determination of the torsional and flexural properties of thin-walled beams with arbitrary open-closed cross-section. Graph theory is employed to establish the topological prope...
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A computer program is developed for the determination of the torsional and flexural properties of thin-walled beams with arbitrary open-closed cross-section. Graph theory is employed to establish the topological properties of multi-cellular cross-section, i.e., to automatically define independent circuits and corresponding fictitious cuts that make section open. Numerical examples calculated by the program are given in the paper. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
A mathematical program in Turbo Pascal 6.00, which is enable to generate spectra and to obtain first and second order derivative spectra, is proposed. The second order derivative spectrum of salicylic acid showed a tr...
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A mathematical program in Turbo Pascal 6.00, which is enable to generate spectra and to obtain first and second order derivative spectra, is proposed. The second order derivative spectrum of salicylic acid showed a trough at 292 nm and a satellite peak at 316 nm. When large amounts of aspirin coexisted, the trough disappeared, but the height of satellite peak (D) was not altered even at an aspirin concentration which was 2000 times more than that of salicylic acid (corresponding to salicylic acid content of 0.05%). The results were compared with those obtained by using a spectrophotometer for recording the second order derivative spectrum of aspirin.
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