MODEL OF RELATIONSHIP OF COLORADO BEETLE DESTRUCTION FULLNESS TO ROTARY SPEED AND HAULM CHOPPER SPEED

2016 ◽  
Vol 11 (1) ◽  
pp. 82-86
Author(s):  
Абдрахманов ◽  
Rinat Abdrakhmanov ◽  
Гильфанов ◽  
Rashid Gilfanov ◽  
Калимуллин ◽  
...  
Keyword(s):  
Colorado Potato Beetle ◽  
Experimental Studies ◽  
Planning Theory ◽  
Experiment Planning ◽  
Mathematical Experiment ◽  
Complete Destruction ◽  
Potato Beetle ◽  
Rotary Speed ◽  
Relationship Of ◽  
Mathematical Experiment Planning

The article provides the results of experimental studies on substantiation and assessment of the kinematic mode impact of rotary haulm chopper to the complete destruction of Colorado potato beetle. A technique of mathematical experiment planning theory was used in the experiments. The software in VBA in MS Excel, developed by the authors, was applied for experimental results processing. By constructing a mathematical model, the problem of optimization was solved, and the regime parameters values of haulm chopper was determined, which ensure the maximum percentage of destruction of the Colorado potato beetle.

scholarly journals Experimental studies of a machine for collecting the Colorado potato beetle

2021 ◽  
Vol 22 (6) ◽  
pp. 935-947
Author(s):  
P. V. Zayats ◽  
P. P. Kazakevich
Keyword(s):  
Colorado Potato Beetle ◽  
Energy Intensity ◽  
Educational Institution ◽  
Experimental Studies ◽  
Apical Part ◽  
Experimental Sample ◽  
Potato Beetle ◽  
Minimal Damage ◽  
The Republic ◽  
Relationship Of

ional Academy of Sciences of Belarus, Minsk, the Republic of Belarus The substantiation of the design and technological scheme of the machine for the mechanical collection of the Colorado potato beetle in the production of environmentally friendly potato is carried out. The parameters and modes of rotors with flexible-elastic blades and regulators of the amplitude of their oscillations, providing high-quality shaking and collection of Colorado potato beetle individuals from the tops with minimal damage, have been experimentally substantiated. A description of the laboratory installation, an experimental sample of a combined unit is presented, and a methodology for conducting experiments is described. Experimental studies were carried out in 2004-2008 in the experimental field of the Educational institution "Grodno State Agrarian University" (UO "GGAU") and in the fields of the Agricultural production cooperative (SEC) "Zanemansky" of the Mostovsky dis-trict of the Grodno region. It was found that in order to reduce the energy intensity of the process, the interaction of the rotor with the tops in its apical part, where the maximum con-centration of Colorado potato beetle individuals takes place, is expedient. The minimum amount of beetle on the tops and the absence of visible damage to it are achieved when the diameter of the nylon threads of the blade is 1.2-1.5 mm, and the rational position of the regulator from the rotor axis is 0.14-0.18 m according to the energy intensity condition. Under the condition of minimal energy consumption of the process and without visible damage to the leaves, the circumferential speed range of the rotor should be 3-4 m/s. A regression equation of the second degree is obtained, which determines the relationship of the residual number of beetle individuals on the tops after the passage of the machine with the circumferential speed of the rotor Voc, the position of the regulator on the radius of the rotor Rr and the cross section of the blade Sbl. The optimal values were determined by solving the equation: Voc = 3.7 m/s, Rr = 0.16 m, Sbl = 1800 mm2 .

scholarly journals Technological Approaches to Evaluating Training Effects of Power Load in Primary Schoolers

2015 ◽  
pp. 16 ◽  
Author(s):  
О. М. Худолій ◽  
О. В. Іващенко ◽  
В. І. Бекетов
Keyword(s):  
Second Grade ◽  
Experiment Planning ◽  
Training Effect ◽  
Test Results ◽  
Training Effects ◽  
Mathematical Experiment ◽  
Centroid Coordinates ◽  
Negative Pole ◽  
Power Load ◽  
Mathematical Experiment Planning

Research objective. To experimentally ground the technological approaches to evaluating training effects of primary schoolers’ power loads.Materials and methods. To achieve the objectives outlined, the research used the following methods: analysis of scientific and methodological literature, pedagogical testing, modeling, pedagogical observation and experiment, methods of mathematical experiment planning (complete factorial experiment, 2k type), discriminant analysis. The participants in the study were 32 second grade boys.Research results. The training pattern affects the dynamics in the test results for the second grade boys. The test results can improve provided that the power load brings about significant changes after the training at each spot, after the training (immediate training effect), and twenty four hours after the power load (delayed training effect). The higher the dynamics is for the immediate and delayed training effects, the more significant are the improved power tests results observed after as few as three lessons.Conclusions. The discriminant function can be used to classify the training effects of the second grade boys’ power loads. The first canonical function explains the results variation by 85.0%, the second one — by 14.0%. This suggests that they are highly informative. The centroid coordinates for five groups allow to interpret the canonical functions according to the role differentiating the grades by the training effects of the primary schoolers’ power loads. The positive pole of the first function has the condition centroids at the beginning of the power loads, after three, six, nine and twelve lessons; the negative pole has the centroids of the training effects after the power loads, after the lesson, after 24 hours.Thus, the reaction to the power load has immediate, delayed and cumulative training effects.

scholarly journals Strength Abilities: Estimation of Immediate Training Effect of Strength Loads in Girls Aged 7 Years

2019 ◽  
Vol 19 (2) ◽  
pp. 98-104 ◽  
Author(s):  
O. M. Khudolii ◽  
O. V. Ivashchenko ◽  
S. S. Iermakov ◽  
Yu. M. Nosko ◽  
S. I. Marchenko
Keyword(s):  
Experiment Planning ◽  
Abdominal Muscles ◽  
Rest Interval ◽  
Mathematical Experiment ◽  
Leg Muscles ◽  
Strength Exercises ◽  
Study Results ◽  
Study Participants ◽  
Full Factorial ◽  
Mathematical Experiment Planning

The study purpose was to experimentally substantiate technological approaches to estimating training effects of strength loads in girls aged 7 years. Materials and methods. The study participants were girls aged 7 years (n = 40). The children and their parents were fully informed about all the features of the study and gave their consent to participate in the experiment. To solve the tasks set, theoretical and empirical methods were used: analysis and generalization of scientific and methodological literature; modeling, pedagogical observation and experiment, methods of mathematical experiment planning (2k type FFE). Results. The study results show that in the proposed matrix of the 22 type full factorial experiment design, the chosen step of variation of factors is sufficient to study the influence of different modes of strength exercises on the dynamics of ITE in girls aged 7 years. Conclusions. At station 1 (exercises to strengthen arms and shoulders), the ITE in girls aged 7 is most influenced by the interaction between the number of repetitions in a set and the rest interval (x1x2) – 83%, the number of repetitions in a set (x1) – 15%; at station 2 (exercises to strengthen abdominal muscles), it is most influenced by the number of repetitions in a set (x1) – 48.5%, the rest interval (х2) – 48.5%; at station 3 (exercises to strengthen back muscles) – by the rest interval (x2) – 82%; at station 4 (exercises to strengthen leg muscles) – by the rest interval (x2) – 92%. At stations 1–3, to strengthen the ITE, it is necessary to increase the number of repetitions in a set and the duration of the rest interval, at station 4, it is necessary to increase the number of repetitions in a set and to reduce the duration of the rest interval.

APPLIED ASPECTS OF MATHEMATICAL EXPERIMENT PLANNING

2015 ◽  
Vol 0 (8) ◽  
pp. 273
Author(s):  
Sergey Evgen’evich Tinyakov ◽  
Iana Pavlovna Borisova ◽  
Anatoly Arhipovich Kovel ◽  
Vladimir Olegovich Andreev ◽  
Anna Aleksandrovna Semenova ◽  
...  
Keyword(s):  
Experiment Planning ◽  
Mathematical Experiment ◽  
Mathematical Experiment Planning

Synthesis of medical glass using mathematical experiment planning

1980 ◽  
Vol 37 (5) ◽  
pp. 238-240
Author(s):  
G. S. Galakhova ◽  
V. M. Nikolaeva ◽  
V. V. Vishnyakov ◽  
T. I. Grishkova ◽  
V. F. Prokopets ◽  
...  
Keyword(s):  
Experiment Planning ◽  
Mathematical Experiment ◽  
Mathematical Experiment Planning ◽  
Medical Glass

scholarly journals Prognostic potential of mathematical experiment planning

2019 ◽  
pp. 87-93
Author(s):  
A. A. Kovel
Keyword(s):  
Experimental Testing ◽  
Operating Conditions ◽  
Electronic Equipment ◽  
Experiment Planning ◽  
Engineering Practice ◽  
Space Technology ◽  
Mathematical Experiment ◽  
Experimental Development ◽  
Element Base ◽  
Mathematical Experiment Planning

The ground-experimental testing of the elements of space technology is a crucial stage in the creation of space products, in fact, this is the ground «flight» of the devices being created. And how well the operating conditions will be reproduced at this stage and the successful functioning of the devices under the expected conditions is ensured, its successful operation in real flight during the service life depends. Electronic equipment (apparatus) of the spacecraft is one of the essential elements that ensure the fulfillment of target tasks, which should confirm their readiness for the forthcoming work at the stage of ground-based experimental testing. The technology of experimental development at a time when the scientific and production association of applied mechanics (now the JSC Academician M. F. Reshetnev Information Satellite Systems) was part of the circle of enterprises that created space technology. And at the same time, the peak of research and implementation in the engineering practice of mathematical experiment planning turned out to be very timely. There was a backlog of applied work in various branches of science and technology and a minimum of work on radio-electronic topics, since the element base of the latter did not allow managing the internal parameters of electronic components, i. e., to reveal the influence of internal factors. This became an obstacle to the implementation of the capabilities of the method in research and improvement of electronic equipment. The article shows how the developers of the enterprise equipment overcame the existing limitations and successfully applied mathematical planning of the experiment for the first time in Russian space technology. Using the capabilities of the methodology, the tasks of optimization of circuit design and design implementation of devices, the choice of the element base for space equipment, the establishment of tolerances and the formation of test modes, etc. were solved.

scholarly journals Modeling glass-ceramic enamel properties

2002 ◽  
Vol 67 (2) ◽  
pp. 135-142
Author(s):  
Dragica Gavrilovski ◽  
Nikola Blagojevic ◽  
Milorad Gavrilovski
Keyword(s):  
Thermal Stability ◽  
Chemical Composition ◽  
Thermal Treatment ◽  
Glass Ceramic ◽  
Chemical Resistance ◽  
Thermal Characteristics ◽  
Experiment Planning ◽  
Mathematical Experiment ◽  
Treatment Procedures ◽  
Mathematical Experiment Planning

The results of an investigation of the chemical and thermal characteristics of glass-ceramic enamels, derived from the Li2O-Na2O-Al2O3-TiO2-SiO2 system obtained by employing the methods of mathematical experiment planning, are presented in this paper. Adequate mathematical models, showing the dependence of the chemical and thermal stability on the chemical composition of enamel systems, after different thermal treatment procedures, were obtained. Based on the testing carried out, it was concluded that in the obtained glass-ceramic enamels the chemical resistance is decreased, but at the same time, the thermal stability is increased, relative to reference coatings.

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