Design and Uncertainty Analysis of a Series of Atomization Experiments in Seven Variables

1990 ◽  
Vol 112 (1) ◽  
pp. 96-106 ◽  
Author(s):  
F. Ruiz ◽  
N. A. Chigier
Keyword(s):  
Experimental Design ◽  
Relative Magnitude ◽  
The Other ◽  
Sources Of Uncertainty ◽  
Lack Of Fit ◽  
Data Points ◽  
The Cost ◽  
First Time ◽  
Propagation Of Uncertainties ◽  
Selection Of

Atomization of liquids is a phenomenon that involves many variables. In order to find correlations for the effects of an extended set of variables, dimensional analysis and experimental design are used, resulting in experimental plans with very reduced number of necessary data points. Means were found to further reduce the cost of the experiments by adjustments of the ranges of the variables and the selection of the parameters and experimental sources of variability. The generation and propagation of uncertainties in the experiments are discussed, and estimates for the true lack of fit of the approximations obtained are found. The selection of a quadratic polynomial approximation seems adequate, given the relative magnitude of the other sources of uncertainty. The effects of some dimensionless parameters with physical meaning are isolated for the first time.

The Evaluation of Surface Quality for Particular Parts of Forging Die

2015 ◽  
Vol 818 ◽  
pp. 268-271
Author(s):  
Peter Ižol ◽  
Jozef Beňo
Keyword(s):  
Tool Wear ◽  
Production Process ◽  
Surface Quality ◽  
The Other ◽  
Connecting Rod ◽  
Production Effectiveness ◽  
The Right ◽  
The Cost ◽  
Forging Die ◽  
Selection Of

Forming dies are often costly for producers and the cost amount is influenced by production process too. If the die is manufactured by machining, proper strategies would necessary to consider as well. The right selection of adequate strategy helps production times shortening, tool wear reducing and those affect production effectiveness. Used strategies and its parameters are often compromise between acceptable surface quality and variations in shape aside, and production time on the other side. The paper presents the way of evaluation of milling strategy based on selected elements of forming die. This allows choosing the adequate strategy for particular shapes of die and also to evaluate them by the reached surface quality. Presented approach is verified by machining forging die cavity for production of connecting rod.

scholarly journals Application of the Complex Moments for Selection of an Optimal Sensor

Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8242
Author(s):  
Raoul R. Nigmatullin ◽  
Vadim S. Alexandrov
Keyword(s):  
Complex Space ◽  
Pearson Correlation ◽  
Statistical Correlation ◽  
Measured Data ◽  
Additional Source ◽  
Data Points ◽  
Correlation Parameters ◽  
First Time ◽  
Source Of Information ◽  
Selection Of

In the first time we apply the statistics of the complex moments for selection of an optimal pressure sensor (from the available set of sensors) based on their statistical/correlation characteristics. The complex moments contain additional source of information and, therefore, they can realize the comparison of random sequences registered for almost identical devices or gadgets. The proposed general algorithm allows to calculate 12 key correlation parameters in the significance space. These correlation parameters allow to realize the desired comparison. New algorithm is rather general and can be applied for a set of other data if they are presented in the form of rectangle matrices. Each matrix contains N data points and M columns that are connected with repetitious cycle of measurements. In addition, we want to underline that the value of correlations evaluated with the help of Pearson correlation coefficient (PCC) has a relative character. One can introduce also external correlations based on the statistics of the fractional/complex moments that form a complete picture of correlations. To the PCC value of internal correlations one can add at least 7 additional external correlators evaluated in the space of fractional and complex moments in order to realize the justified choice. We do suppose that the proposed algorithm (containing an additional source of information in the complex space) can find a wide application in treatment of different data, where it is necessary to select the “best sensors/chips” based on their measured data, presented usually in the form of random rectangle matrices.

scholarly journals Frederik Nielsen: N. F. S. Grundtvigip Tussiusiai kalaallisuunngiortitat. Nuuk 1985

1986 ◽  
Vol 38 (1) ◽  
pp. 87-90
Author(s):  
Signe Michelsen
Keyword(s):  
College Of Education ◽  
The Other ◽  
Single Word ◽  
Way Of Life ◽  
The Bible ◽  
Other Hand ◽  
First Time ◽  
Selection Of

Grundtvig in GreenlandicN. F. S. Grundtvigip Tussiusiai Kalaallisungortitat, Nuuk 1985By Signe MichelsenIn 1985 the Greenland publishers Pilersuiffik (Nuuk/Godth.b) published a selection of Grundtvig’s hymns and songs translated into Greenlandic by the poet Frederik Nielsen. His translations represent a bold and many-sided choice, covering both the hymns and the bible-story songs as well as the fatherland songs. Translating Grundtvig is terribly difficult. Translating Grundtvig into Greenlandic is a noble feat. A language whose structure is completely different from Danish: a poly-synthetic language whose words consist of so many elements (stems and affixes) that a single word can constitute a whole sentence sequence.The background to Frederik Nielsen’s translations of Grundtvig is his own inspiration from youth. Nielsen was born in 1905 and has been a significant poet in Greenland as well as an educationist and a politician. From 1956-67 he was head of the Greenland Radio. He was the first Greenlander to graduate from a Danish college of education (T.nder), and during his time at college he lived with a family strongly influenced by Grundtvig. The decisive moment came when he took part in a grundtvigian meeting in 1927, where for the first time he heard the hymn: All Creatures that were Given Wings (Alt, hvad som fuglevinger fik). He writes of the experience in his memoirs: “That was when I had the conviction that grundtvigian Christianity was the form of Christianity and the Christian way of life that best agreed with me.” In 1934 on the recommendation of Knud Rasmussen, he had had his novel Tuumarse (Thomas) published in Greenlandic. He himself translated it into Danish in 1980. He has since written a number of novels and poems, some of the latter having been translated into Danish. He is still a productive writer and has also sought to inspire his compatriots as a translator, among other things of a selection of Danish poems from 1980.As examples of his Grundtvig translations two are singled out here: All Creatures that were Given Wings and O , Christian Lot! (O, Christelighed). They are published in a retro-translation to Danish, but the original texts to the hymns in question are printed in Greenlandic.It is clear that there are ideas and concepts in Grundtvig that are impossible to translate. On the other hand the Greenlandic language enforces a greater simplicity than in Grundtvig. This can actually lead to very beautiful passages, as in the two last stanzas of O , Christian Lot!. They contain the essentials and express them with spontaneity and intensity. The Greenlandic poet, Kristian Olsen, reviewing Frederik Nielsen’s hymn translations, writes: “Having read them through Grundtvig’s many word-pictures, he has somehow imbued them with Grundtvig’s spirit.”

scholarly journals The 2015 International Psychogeriatric Association Junior Research Awards in Psychogeriatrics

2015 ◽  
Vol 27 (12) ◽  
pp. 1927-1928
Author(s):  
David Ames
Keyword(s):  
Host Country ◽  
Developed Countries ◽  
Associate Editor ◽  
The Other ◽  
Developing Nation ◽  
Junior Research ◽  
The Usa ◽  
First Time ◽  
Beijing China ◽  
Selection Of

Early in 2015, I was asked to chair the judging panel for the 2015 International Psychogeriatric Association (IPA) Junior Research Awards in Psychogeriatrics, and was pleased to help in this way for the second Congress in succession. The other five judges who kindly gave up their time to assist with the selection of the three prize winners were Nicola Lautenschlager, an old age psychiatrist from Australia, co-opted to the panel in her role as the current Editor-in Chief of International Psychogeriatrics (the three winning papers are published in this issue as has been traditional for over 25 years), Glenna Dowling, a nurse from the USA who is also an associate editor of International Psychogeriatrics, Karen Ritchie, a psychologist working in France, Martina Roes, a nurse turned sociologist from Germany, the host country for the 2015 IPA Congress, and Huali Wang, a psychiatrist from Beijing, China. Depending on how you look at it, our panel consisted of three psychiatrists, one psychologist, two nurses and a bonus sociologist, five judges from developed countries and one from a developing nation, or five women and one man, which I think is the first time that such an IPA prize judging panel has had a female majority.

scholarly journals Habitat preferences of diurnal raptors in relation to human access to their breeding territories in the Balkan Mountain Range, Bulgaria

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Nadejda Djorgova ◽  
Dimitar Ragyov ◽  
Valko Biserkov ◽  
Jordan Biserkov ◽  
Boris P. Nikolov
Keyword(s):  
Habitat Preferences ◽  
Breeding Habitat ◽  
The Other ◽  
Peregrine Falcon ◽  
Mountain Range ◽  
Least Cost Path ◽  
Golden Eagle ◽  
Human Presence ◽  
The Cost ◽  
Selection Of

Abstract Background In this study we examined the habitat preferences of three diurnal raptors in relation to human access. We aimed to identify the selection of breeding habitat by the Golden Eagle (Aquila chrysaetos), the Long-legged Buzzard (Buteo rufinus), and the Peregrine Falcon (Falco peregrinus) in response to site accessibility by humans, and in turn, the response of these species to human presence. Methods Data about the nest locations were collected. Analyses and maps were created using ArcGIS. The “least cost path” was defined using the Cost Path tool. Results The lowest values of the Cost Path were established for Long-legged Buzzard and the highest values were estimated for Golden Eagle. Intermediate Cost Path values for Peregrine Falcon were found. Conclusions The Long-legged Buzzard could be considered as the most tolerant to human presence in its breeding territories. The Golden Eagle have the lowest degree of tolerance and the Peregrine Falcon is ranked in an intermediate position compared to the other two species, but closer to Golden Eagle.

scholarly journals EVALUATION OF THE RATIONALITY OF ENTERPRISE POTENTIAL MANAGEMENT

2020 ◽  
Author(s):  
A. Shchebel
Keyword(s):  
Neural Networks ◽  
Regression Model ◽  
Capacity Management ◽  
The Other ◽  
Temporal Dimension ◽  
Cost Measurement ◽  
The Difference ◽  
The One ◽  
The Cost ◽  
Selection Of

The potential of the enterprise may have a number of components that are heterogeneous in their economic and managerial nature. This requires the selection of criteria that would be common to assess all components of capacity. From the standpoint of the resource approach, such criteria could be the cost of resources to build the potential of the enterprise, as well as the value created by using existing capacity. This criterion is easily consistent with the goals of formation and implementation of the potential of the enterprise, and therefore can have a quantitative and temporal dimension of achievement. The cost of resources is a cost measurement of the criterion. In turn, time, on the one hand, is one of the dimensions of the selected criterion, and, on the other hand, a separate criterion. After all, the same result, which is obtained for different periods of time, usually has a different assessment. It is substantiated that the assessment of the rationality of enterprise capacity management should be carried out on the basis of comparing the cost of resources that were involved in the formation of potential with the value created as a result of its use. It is proved that the significance of the difference between these values depends on the time factor. Reducing the analyzed period and increasing the difference between the studied values increases the rationality of management. Applying the provisions of the theory of neural networks, a regression model is constructed, which assumes the use of a recurrent function. This ensured the accuracy of forecasting the resulting parameters and increased the informativeness and objectivity of the proposed method.

scholarly journals Phenotypic multicarter selection approach to predict genetics applied in the segregating generations F2, F3 and F4 of common black beans

Plant Omics ◽  
2019 ◽  
pp. 25-30
Author(s):  
Ivan Ricardo Carvalho ◽  
Vinícius Jardel Szareski ◽  
Gustavo Henrique Demari ◽  
Maurício Horbach Barbosa ◽  
Franciene Lautenchleger ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Experimental Design ◽  
The Other ◽  
Black Beans ◽  
Black Bean ◽  
Selection Approach ◽  
Superior Genotypes ◽  
Simultaneous Selection ◽  
Selection For ◽  
Selection Of

The objective of this work was to apply the phenotypic multicarter selection and predictive genetic for the attributes of the yield of common black bean seeds in the segregating generations F2, F3 and F4.The experimental design was augmented blocks, where the BRS Esplendor (BE), BRS Supremo (BS) and IPR Tiziu (IT) genotypes were used as controls arranged in four replicates, the other treatments were organized in a unique way in the experiment, the F2 segregating generation being represented by 36 common black bean populations, F3 segregating generation composed of 72 families and the F4 segregating generation formed by 44 families. The multicarter phenotypic index provided the simultaneous selection for the number and mass of seeds per plant, independent of the segregating generation of common black bean.Multicarter genetic variation is superior for the F3 segregating generation, with pronounced environmental effects on the F4 generation.The F4 segregating families express superiority to the genetic gain and magnitude of superior genotypes in relation to the commercial controls, where high genetic increase is exposed between the F3 to F4selection.The use of the phenotypic index expresses applicability to the selection of common black bean genotypes to increase seed yield.

Some Bases for Choosing a Computer System: Suggestions for Educators

1979 ◽  
Vol 8 (1) ◽  
pp. 7-30
Author(s):  
Ludwig Braun
Keyword(s):  
Computer System ◽  
Cost Benefit Analysis ◽  
Computer Systems ◽  
Cost Benefit ◽  
The Other ◽  
Benefit Analysis ◽  
Costs And Benefits ◽  
Cost Categories ◽  
The Cost ◽  
Selection Of

This paper was written to guide educators in the selection of computer systems for instructional applications. Four systems representing different cost categories are compared via a set of twenty-five parameters. Besides the PLATO system, the other three computer systems are different capability microcomputers. The approach of this study was to compare computer systems by enumerating the costs and benefits. Problems associated with the cost-benefit analysis are also discussed.

scholarly journals Efficiency of use of supplementary lighting in rearing of dairy calves during milk feeding stage

2015 ◽  
Vol 19 (10) ◽  
pp. 989-995 ◽  
Author(s):  
Gledson L. P. de Almeida ◽  
Héliton Pandorfi ◽  
Fátima Baptista ◽  
Cristiane Guiselini ◽  
Vasco F. da Cruz ◽  
...  
Keyword(s):  
Experimental Design ◽  
The Other ◽  
Dairy Calves ◽  
Feeding Period ◽  
Light Duration ◽  
Supplementary Lighting ◽  
The Cost ◽  
Roofing Materials ◽  
Average Consumption ◽  
Milk Feeding

ABSTRACTThe objective of this study was to evaluate programs of supplementary lighting for calves in individual shelters with different roof materials, as a strategy to stimulate concentrate consumption and the reduction of the milk feeding period and increase financial viability. Twenty seven dairy crossed Holstein × Gir female calves were randomly distributed in individual shelters with three different roofing materials (cement fiber tile, recycled tile and thatched roofs), associated with three different light duration (12, 16 and 20 h) and with three repetitions. The experimental design was completely randomized in 3 × 3 factorial arrangement. There was no interaction between the types of roofs × supplemental light; also, there was no significant effect of the covering types on the average consumption of concentrate and occurance of diarrhea in calves. On the other hand 20 h of lighting stimulated the consumption of concentrate and allowed weaning of calves at 55 days of age and 20% reduction in the cost of rearing animals during milk feeding stage.

scholarly journals Religious dictionary for the first time

1996 ◽  
pp. 67
Author(s):  
Editorial board Of the Journal
Keyword(s):  
Publishing House ◽  
Religious Studies ◽  
The Other ◽  
Other Hand ◽  
Great Responsibility ◽  
The One ◽  
Fourth Wave ◽  
First Time ◽  
Selection Of

The publishing house "Fourth Wave" published a unique publication - the religious studies dictionary written on the basis of religious studies. This, on the one hand, led to the great responsibility of the authors for the content of reference books, and on the other hand, certain difficulties in the selection of terms, the disclosure of their content.

Sign in / Sign up

Export Citation Format

Share Document