scholarly journals Перечисление типовых планов многофакторного эксперимента

2013 ◽  
pp. 146-150
Author(s):  
Е. М. Костенко
Keyword(s):  
Serial Sequences ◽  
Multifactorial Experiment

Запропоновано метод перерахування типових оптимальних планів БФЕ, заснований на поданні планів БФЕ у вигляді серійних послідовностей. Розглянуто рішення поетапних задач методу. Досліджено властивості серійних послідовностей планів БФЕ, отримані оцінки їхньої кількості, описана процедура формування множини базових серійних послідовностей і типових варіантів структур планів БФЕ. Наведено приклади каталогів оптимальних планів БФЕ. Застосування запропонованого методу дасть змогу спростити процес вибору мінімальних планів БФЕ для великої кількості факторів. The method of multifactorial experiment of typical plans enumeration, based on representation of MFE plans in the form of serial sequences is offered. The decision of stage-by-stage problems of the method is considered. Properties of plans of MFE serial sequences are investigated, estimations of their quantity are received, and procedure of base serial sequences set formation and typical variants of plans of MFE structures is described. Examples of optimum plans of MFE catalogues are resulted. Application of the offered method will allow to simplify the process of choice of minimal plans of MFE for a plenty of factors.

scholarly journals Оптимізація планів експериментів в умовах обмежених матеріальних та часових ресурсів

2015 ◽  
pp. 124-131
Author(s):  
О. М. Костенко
Keyword(s):  
Experimental Research ◽  
Construction Method ◽  
Optimization Techniques ◽  
Composite Construction ◽  
Technical Problems ◽  
Technological Processes ◽  
Time Costs ◽  
Serial Sequences ◽  
Dynamic Objects ◽  
Multifactorial Experiment

Стаття присвячена вирішенню науково-технічноїпроблеми зменшення матеріальних і часових витратпід час реалізації експериментальних досліджень зарахунок розробки та впровадження методів синтезуоптимальних планів експериментів в умовах обме-жених матеріальних і часових ресурсів. Розробленаметодологія включає в собі методи оптимізації завартісними і часовими витратами планів експеримен-ту: оснований на використанні типових серійних по-слідовностей планів багатофакторного експеримен-ту, композиційний метод побудови планів, близькихдо оптимальних, побудови каталогу типових планів,ітераційного планування експериментів, послідовногопланування експериментів, ідентифікації динамічнихоб’єктів на основі ітераційного планування. Методо-логія пройшла апробацію під час дослідження низкитехнологічних процесів, приладів і систем. The article is devoted of solving scientific and technical problems of reduce material and time costs in  implementing experimental research through the development and implementation of methods for the synthesis of optimal plans experiments in conditions of limited material and time resources. The developed methodology includes optimization techniques for cost and time-consuming experiment plans: based on the use of standard serial sequences of plans of multifactorial experiment, composite construction method of plans which are close to optimal, building a catalog of tipical plans, iterative experiments planning, serial planning experiments, identification of dynamic objects on the basis of iterative planning. The methodology has been tested in the study of some technological processes, devices and systems.

The effect of chisel ploughing and inter-row cultivation on soil water content and yield of bulrush millet (Pennisetum typhoides) at Katherine, N.T

1966 ◽  
Vol 6 (20) ◽  
pp. 48
Author(s):  
LJ Phillips ◽  
MJT Norman
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Dry Matter ◽  
Dry Matter Yield ◽  
Wet Season ◽  
Pennisetum Typhoides ◽  
Nitrogen Yield ◽  
Multifactorial Experiment

A multifactorial experiment comprising combinations of three pre-wet-season chisel ploughing treatments, three wet-season chisel ploughing treatments, and three inter-row cultivation treatments was carried out on bulrush millet (Pennisetum typhoides S. & H.) at Katherine, N.T., in 1963-64, and was repeated in 1964-65. Pre-wet-season ploughing throughout the growth of the nitrogen yield of millet when treatments had very little effect on the dry matter or nitrogen yield of millet crop. Increasing the depth of wet-season ploughing increased the dry matter and sampled at 7 and 12 weeks after sowing, but at the final sampling, 18 weeks after sowing, only the differences in dry matter yield were maintained. Responses in dry matter and nitrogen yield were obtained to one inter-row cultivation, but not to a second. Differences in dry matter yield due to wetseason ploughing and inter-row cultivation were associated with differences in soil water content measured in the 1-4 feet profile in 1964-65.

The influence of inter-row spacing and plant population on the yield of peanuts at Katherine, N.T

1962 ◽  
Vol 2 (4) ◽  
pp. 54 ◽  
Author(s):  
LJ Phillips ◽  
MJT Norman
Keyword(s):  
Plant Population ◽  
Row Spacing ◽  
Clay Loam ◽  
Plant Populations ◽  
Kernel Yield ◽  
Multifactorial Experiment

In 1957-58 and 1958-59, Virginia Bunch and Natal Common peanuts were sown on Tippers clay loam at Katherine, N.T., in a multifactorial experiment at two inter-row spacings (2 ft and 3 ft), four plant populations (10, 20, 40 and 80 thousand per acre) and two dates. In 1960-61, Natal Common only was sown at the same inter-row spacings, at two dates, and at populations of 10, 20, 30 and 40 thousand per acre. Over two seasons, the yield of Virginia Bunch kernels was not significantly influenced by variation in population, though the yield of hay was 42 per cent higher at 80,000 plants per acre than at 10,000 plants per acre. Kernel yields from 2 f t rows were 14 per cent higher than from 3 f t rows. In the first two seasons, the yield of Natal Common kernels was lower at 80,000 plants per acre than at 40,000 plants per acre. Over three seasons, maximum kernel and h g yields were achieved at 40,000 plants per acre ; the kernel yield at this population was 35 per cent greater than at 10,000 plants per acre. With early-planted Natal Common, 2.ft rows gave an 11 per cent higher yield of kernels than 3 f t rows, but with later planting there was no significant effect of inter-row spacing. The optimum economic seeding rates were estimated approximately as 30 lb an acre for Virginia Bunch and 45 lb an acre for Natal Common.

Determination of resistance to rolling of tires in dependence on operating conditions. Part 1. Method of multifactorial experiment

2007 ◽  
Vol 28 (2) ◽  
pp. 154-161 ◽  
Author(s):  
V. V. Mozharovskii ◽  
S. V. Shil’ko ◽  
S. B. Anfinogenov ◽  
A. V. Khot’ko
Keyword(s):  
Operating Conditions ◽  
Multifactorial Experiment
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