We provide a comprehensive SAS program to facilitate the analysis of the phenological synchronisation among all the genetic entries of a seed orchard. The program, intended for SAS-PC 6.12 under the Microsoft Windows,...
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We provide a comprehensive SAS program to facilitate the analysis of the phenological synchronisation among all the genetic entries of a seed orchard. The program, intended for SAS-PC 6.12 under the Microsoft Windows, computes several phenological synchronisation indices for each male-female combination and performs the male and female phenograms as well as other simple graphics that may help in the interpretation of the phenological synchronisation study in a Pinus pinaster Ait. seed orchard in Northwest Spain is presented to demonstrate the use of the program and the features of the outputs.
The host-guest interaction between the steroid antibiotics sodium fusidate and potassium helvolate as guests and the hosts beta- and gamma-cyclodextrin was studied by C-13 and H-1 NMR techniques. The analysis of chemi...
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The host-guest interaction between the steroid antibiotics sodium fusidate and potassium helvolate as guests and the hosts beta- and gamma-cyclodextrin was studied by C-13 and H-1 NMR techniques. The analysis of chemical shifts of individual nuclei leads to inconsistent values of the association constants and fails generally in the case of mixtures of 1: 1 and 1:2 stoichiometries. The problem of parameter correlation is identified and the global analysis of two or more nuclei is proposed as a very effective method for the detection of complexes of higher stoichiometries and for the precise determination of the involved association constants. A matrix formulation of global analysis and the determination of confidence intervals is described. An analytical solution of the cubic equation, necessary for the description of higher order complexes, is presented in detail and its use together with commercial fitting software is compared with dedicated implementations. gamma-Cyclodextrin forms with both studied steroids, sodium fusidate and potassium helvolate, 1: 1 complexes with high values of the association constants, K-1 = (60 +/- 24) x 10(3) 1 mol(-1), and K-2 = (22 +/- 9) x 10(3) 1 mol(-1), respectively. To the contrary, beta-cyclodextrin forms 1: 1 and 1:2 (guest:host) complexes with both steroids, with moderate K-1 and low K-2 values (K-1 = (0.74 +/- 0.13) x 10(3) 1 mol(-1), K-2 = (0.210 +/- 0.075) X 10(3) 1 mol(-1)), and (K-1 = (2.42 +/- 0.87) X 10(3) 1 mol(-1), K-2 = (0.06 +/- 0.09) x 10(3) 1 mol(-1)), respectively. (C) 2002 Elsevier Science Inc. All rights reserved.
A quadratic approximation of the maximum-likelihood criterion is defined by a target value for every calculated structure-factor magnitude and the corresponding weight. These values can be estimated using the experime...
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A quadratic approximation of the maximum-likelihood criterion is defined by a target value for every calculated structure-factor magnitude and the corresponding weight. These values can be estimated using the experimental structure-factor magnitudes and general information about the model imperfection. The program MLMF provides a user with these weights and target values. The obtained quadratic approximation allows one to carry out a kind of maximum-likelihood refinement by means of any least-squares refinement suite.
Herein we describe the program FAST-Modelfree for the fully automated, high throughput analysis of NMR spin-relaxation data. This program interfaces with the program Modelfree 4.1 and provides an intuitive graphical u...
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Herein we describe the program FAST-Modelfree for the fully automated, high throughput analysis of NMR spin-relaxation data. This program interfaces with the program Modelfree 4.1 and provides an intuitive graphical user interface for configuration as well as complete standalone operation during the model selection and rotational diffusion parameter optimization processes. FAST-Modelfree is also capable of iteratively assigning models to each spin and optimizing the parameters that describe the diffusion tensor. Tests with the protein Ribonuclease A indicate that using this iterative approach even poor initial estimates of the diffusion tensor parameters will converge to the optimal value within a few iterations. In addition to improving the quality of the final fit, this represents a substantial timesaving compared to manual data analysis and minimizes the chance of human error. It is anticipated that this program will be particularly useful for the analysis and comparison of data collected under different conditions such as multiple temperatures and the presence and absence of ligands. Further, this program is intended to establish a more uniform protocol for NMR spin-relaxation data analysis, facilitating the comparison of results both between and within research laboratories. Results obtained with FAST-Modelfree are compared with previous literature results for the proteins Ribonuclease H, E. coli glutaredoxin-1 and the Ca2+-binding protein S100B. These proteins represent data sets collected at both single and multiple static magnetic fields and which required analysis with both isotropic and axially symmetric rotational diffusion tensors. In all cases results obtained with FAST-Modelfree compared favorably with the original literature results.
An object technology and procedure are described for the rapid development of Web pages containing interactive calculations for learning or research applications. NumberLinX (NLX) consists of a library of Java objects...
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ISBN:
(纸本)0780377893
An object technology and procedure are described for the rapid development of Web pages containing interactive calculations for learning or research applications. NumberLinX (NLX) consists of a library of Java objects for interacting with model equations, also coded in Java. Functions of the NLX objects include control of the calculations, changing model parameters, and displaying calculated results. NLX objects are general and do not require Java code changes for different models and applications. HTML parameters are used to connect interactive objects together, for example linking input objects to model parameters and output display objects to calculated variables. HTML templates for the NLX objects simplify the construction of interactive Web pages containing the objects.
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.
In consideration of destructive characteristics of concrete short column reinforced with a carbon fiber cloth, constitutive relationships between concrete materials under repetitive loads are established. In view of t...
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In consideration of destructive characteristics of concrete short column reinforced with a carbon fiber cloth, constitutive relationships between concrete materials under repetitive loads are established. In view of the nonlinear and cohesive action between steel and concrete and relative sliding influence between carbon fiber cloth, an analysis program created with APDL parameter-program design language is used. The yield load, ultimate load, destructive load and related apex shift of the carbon fiber cloth reinforced concrete short column are analyzed, of which calculation is basically consistent with testing results.
Recent developments in gas turbines encourage their use in utility power generation in many parts in the world. The addition of a heat recovery steam generator (HRSG) to a gas turbine to utilize its waste heat finds g...
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Recent developments in gas turbines encourage their use in utility power generation in many parts in the world. The addition of a heat recovery steam generator (HRSG) to a gas turbine to utilize its waste heat finds good application in many of the Arabian Gulf countries to desalt seawater from the steam generated by the HRSG. Also the addition of a steam turbine to utilize this steam, to form what is called a combined power cycle, greatly increases the efficiency of power generation. The use of a combined cycle as a cogeneration power-desalting plant looks very attractive as it saves fuel in producing both electric power and desalted water.
The objective of this study was to evaluate a computer based interactive diabetes education program designed to train patients with diabetes to correctly estimate the energy or carbohydrate contents of foods. The acce...
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The objective of this study was to evaluate a computer based interactive diabetes education program designed to train patients with diabetes to correctly estimate the energy or carbohydrate contents of foods. The acceptance and the operator convenience of the program were evaluated with an integrated program and written questionnaires. The training success was calculated for each user from the data sets after multiple repetitions of the same exercise. Age, weight, type of diabetes, previous training and computer experience of 126 patients with type 1 or 2 diabetes from three different German diabetes centres were documented. The evaluation of the computer program indicated a good acceptance and operator convenience. Moreover, there was a significant training success in patients who have never used a structured diabetes education program before. Therefore, the potential impact of the program is to support but not to replace structured diabetes education programs and to further motivate and attract patients to diabetes education programs. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
This paper presents a new computer program for nonintrusive disaggregation of the total electricity consumption of a house into the major end uses. The computer program has two modes: (1) sampling and (2) evaluation. ...
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This paper presents a new computer program for nonintrusive disaggregation of the total electricity consumption of a house into the major end uses. The computer program has two modes: (1) sampling and (2) evaluation. In the sampling mode, the operating characteristics (of each end use are determined from data collected over a period of several days using at least one current sensor per appliance. In the evaluation mode, only the main electric entrance of the house is monitored, and the electric signal is analyzed to disaggregate the total energy consumption. The errors in estimating the energy shares of three major end uses (water heater, baseboard heater and refrigerator) are less than 10% for most evaluation scenarios. (C) 2000 Elsevier Science Ltd. All rights reserved.
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