Study of Changes of the Individual Parameter of Resources in the Modelling of Renewable Systems

Author(s):  
Oleksandr Karelin ◽  
Anna Tarasenko ◽  
Oleksandr Barabash ◽  
Manuel Gonzalez-Hernandez ◽  
Joselito Medina-Marin
Author(s):  
Maria I. Kiose ◽  
◽  

The article explores the specificity of linguistic creativity in the discourse of children's English-language adventure fiction of the 1950s. The aim of the research is to develop the parametrization and vector-space method of discourse and text linguistic creativity assessment to evaluate the linguistic creativity potential of individual texts displaying similar discourse features. To serve as the research data three discourse fragments were selected, which represent three basic narrative types, Orientation, Complicating Actions, Evaluation and Resolution. To achieve the aim, the author applies the procedure of parametrization analysis followed by general and analytic statistics analysis and vector-space modelling. With the system of 52 parameters featuring linguistic creativity in phonology, word-formation, morphology, lexicology and phraseology, syntax, and graphics, the author manually annotates and processes the discourse fragments of similar size exemplifying three narrative types of adventure fiction literature, with the total sample size of 55,000 characters. General statistics analysis allowed revealing the absolute and relative parameter values in three discourse fragments and defining the relative parametric activity of single parameters and parameter levels. Analysis of variance helped define the correlation indices of parameter paired combinations, which resulted in detecting significant binary parameter groups . Individual parameter values and their binary groups served to construe the vector-space models of discourse and text linguistic creativity for the discourse narrative types under consideration. Thus, the author obtained an efficient instrument for discourse linguistic creativity evaluation and, furthermore, for assessing the potential of each individual text in terms of displaying stronger or weaker correlation with the vector coordinates of the discourse linguistic creativity vector-space model. With the frequency and variance analysis, the author disclosed two types of discourse linguistic creativity performance techniques, that is the individual parameter activation and the parameter synchronization. Both must be considered when the decision on linguistic creativity assessment in a concrete text is made. The resulting model shows that the parameter values of linguistic creativity in individual texts can manifest themselves in appearing both higher and lower than the reference parameter values of discourse creativity, which can contribute to disclosing new directions in creativity processing and understanding.


INDIAN DRUGS ◽  
2021 ◽  
Vol 58 (03) ◽  
pp. 48-53
Author(s):  
◽  
Chitra Gupta ◽  
Lalit K. Tyagi

Present work was carried out to evaluate the effect of process variables on the UV absorbance of hydrochlorothiazide. The effect of three variables namely such as sample temperature, nature of the solvent and sample volume on UV absorption was studied by using the design of experiments (DOE) approach. Central Composite Design (CCD) was applied to investigate the effect of sample temperature (A) variation in the range of 15 °C - 45 °C, nature of the solvent (B) viz. ethanol, methanol, and 4 % sodium hydroxide and sample volume (C) in the range of 1.5 mL to 2 mL on the UV absorbance of Hydrochlorothiazide. Each of the parameters was varied at three different levels (-1, 0, 1) and twenty suggested experimental runs were conducted with six central points. The data was then analyzed for model fitting and finding how each of the variables affected the response by using ANOVA. The three variables under study were found to have a moderate effect on the UV absorbance, as expected based on theoretical concepts. However, the influence was found to be statistically insignificant as the P value for the individual parameter was found to be greater than 0.05. Further, the P value was less than 0.05 for the squares of temperature, solvent, and combination of solvent and volume for UV absorbance of hydrochlorothiazide, implying that these factors have a statistically significant bearing on UV absorbance. Results showed that out of the three parameters under study, the temperature of the sample affected the absorbance of hydrochlorothiazide the most.


1966 ◽  
Vol 9 (1) ◽  
pp. 5-67 ◽  
Author(s):  
Gordon E. Peterson ◽  
June E. Shoup

This paper presents a phonetic theory based on physiological parameters. The motivation for and requirements of a phonetic theory are first considered. The theory assumes, without restatement, various known facts from physical and biological science. Certain essential components of the speech mechanism are defined in a set of preliminary definitions. Assumptions about the actions of the vocal mechanism which directly underlie the theory are next presented in a set of axioms. Following the axioms is an extensive set of definitions that specifies the concepts of phonetics and their relationships. A phonetic chart presents the various physiological speech parameters and their values. These parameters include the primary and secondary phonetic parameters and the prosodic parameters. The chart includes a phonetic diagram which presents a basic phonetic symbolization according to the values of the primary parameters. Secondary parameters implicit in the symbols of the diagram are shown in a second chart. The individual parameter values for the various parameters are next defined. The article presents a basic theory of the parameter values and the dynamics of speech production, and also presents a systematic symbolization for descriptive phonetics.


Author(s):  
A. Stein ◽  
D. C. Hofer ◽  
V. Filippenko ◽  
J. Slepski

This paper systematically explores the aerodynamic design space of transonic tip sections for large steam turbines. The sections studied in this work have subsonic inlet relative Mach numbers, and supersonic exit Mach numbers up to 1.75. Two-dimensional CFD evaluations using numerical solvers MISES and TACOMA are used to assess the performance impact of design parameters. Geometric features including subsonic overlap, supersonic overlap, trailing edge thickness, trailing edge wedge angle and camber distribution are evaluated for their effect on the section performance. An optimal geometry is then generated incorporating the best features from each of the individual parameter studies.


Author(s):  
Alan Chorley ◽  
Richard P. Bott ◽  
Simon Marwood ◽  
Kevin L. Lamb

Abstract Purpose The aim of this study was to investigate the individual $$W^{^{\prime}}$$ W ′ reconstitution kinetics of trained cyclists following repeated bouts of incremental ramp exercise, and to determine an optimal mathematical model to describe $$W^{^{\prime}}$$ W ′ reconstitution. Methods Ten trained cyclists (age 41 ± 10 years; mass 73.4 ± 9.9 kg; $$\dot{V}{\text{O}}_{2\max }$$ V ˙ O 2 max 58.6 ± 7.1 mL kg min−1) completed three incremental ramps (20 W min−1) to the limit of tolerance with varying recovery durations (15–360 s) on 5–9 occasions. $$W^{^{\prime}}$$ W ′ reconstitution was measured following the first and second recovery periods against which mono-exponential and bi-exponential models were compared with adjusted R2 and bias-corrected Akaike information criterion (AICc). Results A bi-exponential model outperformed the mono-exponential model of $$W^{^{\prime}}$$ W ′ reconstitution (AICc 30.2 versus 72.2), fitting group mean data well (adjR2 = 0.999) for the first recovery when optimised with parameters of fast component (FC) amplitude = 50.67%; slow component (SC) amplitude = 49.33%; time constant (τ)FC = 21.5 s; τSC = 388 s. Following the second recovery, W′ reconstitution reduced by 9.1 ± 7.3%, at 180 s and 8.2 ± 9.8% at 240 s resulting in an increase in the modelled τSC to 716 s with τFC unchanged. Individual bi-exponential models also fit well (adjR2 = 0.978 ± 0.017) with large individual parameter variations (FC amplitude 47.7 ± 17.8%; first recovery: (τ)FC = 22.0 ± 11.8 s; (τ)SC = 377 ± 100 s; second recovery: (τ)FC = 16.3.0 ± 6.6 s; (τ)SC = 549 ± 226 s). Conclusions W′ reconstitution kinetics were best described by a bi-exponential model consisting of distinct fast and slow phases. The amplitudes of the FC and SC remained unchanged with repeated bouts, with a slowing of W′ reconstitution confined to an increase in the time constant of the slow component.


2003 ◽  
Vol 06 (03) ◽  
pp. 441-456 ◽  
Author(s):  
WILLIAM J. CHIVERS ◽  
RIC D. HERBERT

An individual-based model which produces nonlinear predator-prey dynamics is described. The importance of individual variation to the stability of the population dynamics predicted by the model and the advantages of the individual-based approach to modelling ecological systems is discussed. The individual-based model is compared with the traditional approach of population ecology — the modelling of populations with state variable equations. The individual-based model built here produces similar patterns of mutual dependence of the populations to those produced by the state variable model but has additional utility. It greatly simplifies the adjustment of individual environmental parameters which may be built into the model and it makes it possible to follow individuals or individual parameter values through the simulation. The cost of the utility of the individual-based approach is in the complexity of the model itself, which is more difficult to build than many state variable models. A common finding in the literature of individual-based modelling in ecology is the importance of individual variation. The individual-based model described here is built with a minimum of biological complexity, but still we find that individual variation in the model has profound effects on the stability of the population levels over long time periods.


2016 ◽  
Vol 8 (2) ◽  
pp. 106
Author(s):  
Marc Kenneth Labadan Marquez

<p>This study employs a corpus-based approach to identify and examine professional register features and some cultural-rhetorical patterns from a corpus of 50 internal communication electronic mails (e-mails) randomly culled from one Filipino and two American companies. Using the ten linguistic parameters in register variation in professional communication, similarities and differences in professional register features, as well as fluctuation tendencies, have been accounted. The findings have revealed that both e-mail corpora from the two language communities contained features significantly marked by professional casual register. However, a close inspection of the individual parameter frequency results has revealed considerable differences including register fluctuation tendencies, conformities to genre norms and conventionalities, and some culture-related rhetorical peculiarities. Moreover, the study has provided explanations on the importance of understanding rhetorical differences across cultures, as well as suggestions for further research endeavors on the given genre and language research field.</p>


Author(s):  
Chen-Han Lee ◽  
Lingyun Lu ◽  
Jon Dym ◽  
Guangyan Yin

CAD/CAM/CAE applications often deal with open or closed shells of faces (surfaces). Each face has it’s own 2-D parameter space that may not be rectangular. In many applications we need to merge the individual parameter spaces into a single global parameter space that resembles the model shape in the 3-D physical space. In this paper, we present a method of building such shape-preserving global parameterization (of a shell of faces) that is suitable for CAD/CAM/CAE applications.


1999 ◽  
Vol 277 (2) ◽  
pp. H481-H487 ◽  
Author(s):  
Mustafa Karamanoglu ◽  
Michael P. Feneley

Late systolic augmentation of the ascending aortic pressure waveform is believed to be caused by particular impedance patterns but also could be caused by particular left ventricular outflow patterns. Using a linear mathematical model of the entire human arterial tree, we derived realistic impedance patterns by altering 1) Young’s modulus of the arterial wall of the individual branches, 2) peripheral reflection coefficients, and 3) distal compliances at the terminations. These calculated impedance patterns were then coupled to realistic left ventricular outflow patterns determined by unique 1) end-diastolic and end-systolic pressure-volume relationships, 2) preload-recruitable stroke work relationships, and 3) shortening paths simulated by altered aortic flow contours. As determined by the ratio of the individual parameter coefficient of determination ( r 2) to the overall model r 2, late systolic pressure augmentation was more strongly determined by left ventricular outflow patterns than by arterial impedance parameters ( r 2 ratio: 53% vs. 33%). Thus left ventricular outflow patterns are at least as important as impedance parameters in determining late systolic pressure augmentation in this model.


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