For two independent samples with independent proportions, the significance level of the difference between them can be obtainedfrom joint binomial probabilities, assuming the population propor-tion is well estimated b...
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For two independent samples with independent proportions, the significance level of the difference between them can be obtainedfrom joint binomial probabilities, assuming the population propor-tion is well estimated by the samples' pooled proportion. An efficient computer program can be written for this binomial test. The x2test, using a continuity correction of .25 for equal sample sizes and .1 for unequal sample sizes, is in close agreement with the binomial test.
A telecommunication network has to be planned taking into account overloads and failure conditions. This paper presents a chain of computer programs, which allows the optimal design and dimensioning of a network in or...
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A telecommunication network has to be planned taking into account overloads and failure conditions. This paper presents a chain of computer programs, which allows the optimal design and dimensioning of a network in order to satisfy a given grade of service specification in case of the interruption of a single transmission link. The additional cost of introducing security requirements is also evaluated. The method has been applied to the network of Ile de France. After description of Paris extramuros network, the paper presents general results on the best security strategy for a given loss probability. The investments required for transmission equipments represent one to two years growth.
A computer program was designed for determining candidate sequences of polypeptides and proteins from the MW and N-terminal partial sequences of the peptide fragments derived from the polypeptides and proteins by spec...
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A computer program was designed for determining candidate sequences of polypeptides and proteins from the MW and N-terminal partial sequences of the peptide fragments derived from the polypeptides and proteins by specific cleavages. The basic principle for sequencing a protein by this method is described.
Whether a kinetic model and a computer program for characterizing the rate of uptake and clearance of chemicals in aquatic organisms (Biofac, OECD [Organization for Economic Cooperation and Development] Chemicals Test...
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Whether a kinetic model and a computer program for characterizing the rate of uptake and clearance of chemicals in aquatic organisms (Biofac, OECD [Organization for Economic Cooperation and Development] Chemicals Testing program) was applicable to pharmacokinetic studies in fish were studied. The program seems suitable for such studies. The effect of temperature upon rate of absorption of sulfadimidine from medicated water and elimination of the same drug was investigated in rainbow trout. A rise in the temperature from ***. C more than doubled the calculated rate constants of absorption and elimination. The biological half life (t1/***.) and the time to reach 90% of the steady state (t90% ss) at ***. C were approximately half the values at ***. C.
Es wird ein in BASIC geschriebenes 16K-computer-programm vorgestellt, das die zur Kennzeichnung der Temperaturabhängigkeit der Viskosität newtonscher Flüssigkeiten (insbesondere von Schmierstoffen) ...
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Es wird ein in BASIC geschriebenes 16K-computer-programm vorgestellt, das die zur Kennzeichnung der Temperaturabhängigkeit der Viskosität newtonscher Flüssigkeiten (insbesondere von Schmierstoffen) üblichen Kenngrößen auszuwerten gestattet und außerdem bei Vorgabe eines variablen Richtungsfaktors Viskositäts-Temperatur-Reihen berechnen kann.
This paper presents a class of (p + 2)-step backward differentiation formulas of orderp. The two extra degrees of freedom obtained by limiting the order of a (p + 2)-step formula top are used to extend the region of a...
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This paper presents a class of (p + 2)-step backward differentiation formulas of orderp. The two extra degrees of freedom obtained by limiting the order of a (p + 2)-step formula top are used to extend the region of absolute stability. A new formula of orderp has a region of absolute stability very similar to that of a classical backward differentiation formula of orderp - 1 forp being in the range 4–6. The backward differentiation formulas with extended regions of absolute stability are constructed by appending two exponential-trigonometric terms to the polynomial basis of the classical formulas. Besides the absolute stability, the paper discusses relative stability and contractivity. The principles of an experimental implementation of the new formulas are outlined, and a linear problem integrated with this computer program indicates that the extended regions of absolute stability can actually be exploited in practice.
A method and its associated computer program for (specifically communication) network analysis are described. The program described here, NEGOPY, is relational, or linkage-based. The conceptual orientation, computatio...
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A method and its associated computer program for (specifically communication) network analysis are described. The program described here, NEGOPY, is relational, or linkage-based. The conceptual orientation, computational algorithm, operating characteristics, format and availability of NEGOPY are described. Finally, a partial bibliography of works describing other aspects of NEGOPY and research studies using NEGOPY is included.
The object of this work was to explore the possibility of scaling a Finite Element program to fit in a small desktop computer. A program originally written in FORTRAN IV and called STAP was selected for the present pr...
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The object of this work was to explore the possibility of scaling a Finite Element program to fit in a small desktop computer. A program originally written in FORTRAN IV and called STAP was selected for the present project. This program is contained in Bathe and Wilson's Numerical Methods in Finite Element Analysis and was conceived to solve static linear elastic analysis. The program was rewritten in an enhanced form of BASIC language suitable for the Hewlett-Packard System 45 desktop computer. Presently, only the truss element is available; however, the program is structured so that other element types may be easily implemented. A plot of the input mesh is included in the program output.
A FORTRAN computer program is presented for the reduction to a lipoprotein size distribution of data from the analytical ultracentrifugal analysis of total low density lipoproteins at a density of 1·0.63 g/ml. It...
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A FORTRAN computer program is presented for the reduction to a lipoprotein size distribution of data from the analytical ultracentrifugal analysis of total low density lipoproteins at a density of 1·0.63 g/ml. It is a simple but versatile program using schlieren photographs reduced to x and y co-ordinates as the input. The program accommodates different rotor speeds, temperatures and background solution viscosities, and will accept up to five photographs taken at any time before or after the rotor has reached full speed. Output consists of a lipoprotein diameter distribution and a graph with log (Sf+5) as x-axis. Lipoprotein concentrations are also calculated.
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