scholarly journals Maintenance of Bullet Train Based on Mathematical Planning and Workshop Scheduling

2020 ◽  
pp. 27
Keyword(s):  
Mathematical Planning ◽  
Bullet Train

The methodology of experimental research of the feed components extrusion process in order to improve its energy performance

2020 ◽  
pp. 147-152
Author(s):  
E. M. Ratnikov ◽  
D. O. Milko
Keyword(s):  
Experimental Studies ◽  
Energy Performance ◽  
Extrusion Process ◽  
Mathematical Methods ◽  
Screw Extruder ◽  
Mathematical Planning ◽  
Factors Affecting ◽  
Extrusion Processing ◽  
Definition Of

Annotation Purpose. Development of a program and methods for conducting experimental studies of the extrusion process with the definition of parameters and modes of operation of the extruder to improve its energy performance. Methods. Methods of mathematical statistics, synthesis, analysis, description and modeling were used. Results. The application of mathematical methods, in particular mathematical planning, reduces the number of experiments several times, and allows to evaluate the role of influencing factors, obtain a mathematical model of the process and determine the optimal conditions for its parameters and modes, etc. Conclusions. The methodology for experimental studies of a screw extruder is presented with the necessary equipment and methodology for processing the obtained experimental data. A mathematical method of planning, which reduces the number of experiments several times, allows us to evaluate the role of factors affecting productivity and energy intensity is presented. Keywords: extruder, auger, nutrients, research methodology, extrusion, processing, feed.

APPLICATION OF THE PUMPKIN POMACE POWDER IN ENRICHED CRACKER TECHNOLOGY

2019 ◽  
Author(s):  
Н.М. ДЕРКАНОСОВА ◽  
И.И. ЗАЙЦЕВА ◽  
А.А. ЕМЕЛЬЯНОВ ◽  
Т.В. ПОНОМАРЕВА ◽  
А.А. СТАХУРЛОВА ◽  
...  
Keyword(s):  
Dietary Fiber ◽  
Optimization Method ◽  
Mathematical Planning ◽  
Chemical Indicators ◽  
Organoleptic Characteristics ◽  
Autolytic Activity ◽  
Physical And Chemical ◽  
Interstate Standard ◽  
Β Carotene

Рассмотрены аспекты применения вторичного продукта сокового производства – выжимок из тыквы, полученных конвективным вакуумным высушиванием при температуре, не превышающей 50°С, в качестве обогащающего пищевыми волокнами сырьевого ингредиента рецептуры крекера. Дана характеристика высушенных выжимок из тыквы сорта Мускатная. Приведены результаты исследования влияния порошка из выжимок тыквы дисперсностью от 63 до 125 мкм на хлебопекарные свойства муки – количество и качество клейковины, автолитическую активность. Обоснование рецептуры крекера с повышенным содержанием пищевых волокон и β-каротина проведено методом математического планирования – полный факторный эксперимент 22 с последующей оптимизацией методом ридж-анализа. Разработана производственная рецептура. Апробация разработанной рецептуры показала, что крекер с выжимками из тыквы в количестве 11,34 г/100 г муки имеет отличительные органолептические характеристики, обусловленные привкусом и ароматом тыквы, по физико-химическим показателям соответствует требованиям межгосударственного стандарта, по составу, г/100 г, пищевых волокон (3,4) и β-каротина (2,9) может быть отнесен к продукту – источнику пищевых волокон с высоким содержанием β-каротина. The aspects of the use of the secondary product of juice production – pumpkin pomace obtained by convection vacuum drying at a temperature not exceeding 50°C, as an enriching raw ingredient of the cracker formulation with food fibers are considered. The characteristics of dried pumpkin pomace of Muscatnaya variety are given. The results of the study of the influence of pumpkin pomace powder dispersion from 63 to 125 microns on the baking properties of flour – the quantity and quality of gluten, autolytic activity are adduced. The substantiation of the cracker formulation with high content of dietary fibers and β-carotene was carried out by the method of mathematical planning – a complete factorial experiment 22 with subsequent optimization method by ridge analysis. The production formulation is developed. Approbation of the developed formulation showed that the cracker with pumpkin extracts – 11,34 g/100 g of flour has distinctive organoleptic characteristics due to the taste and aroma of pumpkin, on physical and chemical indicators meets the requirements of the interstate standard, by composition, g/100 g, dietary fiber (3,4) and β-carotene (2,9) can be attributed to the product – a source of dietary fiber with a high content of β-carotene.

RaShThe Bullet Train and Other Loaded Poems

2019 ◽  
Vol 93 (4) ◽  
pp. 126-126
Author(s):  
Sahana Mukherjee
Keyword(s):  
Bullet Train

Improvement of the Process of Mechanical Dehydration of Five-Layer Wet Leather Semi-finished Products

2021 ◽  
Author(s):  
Auezhan T. Amanov ◽  
◽  
Gayrat A. Bahadirov ◽  
Gerasim N. Tsoy ◽  
Ayder M. Nabiev ◽  
...  
Keyword(s):  
Base Plate ◽  
Design Matrix ◽  
Feed Speed ◽  
Mathematical Planning ◽  
Optimal Method ◽  
Factors Affecting ◽  
Squeeze Out ◽  
Excess Moisture ◽  
Near Future ◽  
Experimental Bench

To improve the process of mechanical dehydration of semi-finished wet leather products, a multilayer dehydration using felt materials – monshons was experimentally investigated. The process is conducted by vertical feed of semi-finished wet leather products on a base plate between rotating squeezing rollers. The D-optimal method of mathematical planning of the experiment and the Kano design matrix were used for conducting experiments. The multi-layer package consists of five layers of semi-finished wet leather products and two layers of moistureremoving materials between each layer, folded over the base plate. The studies were carried out in laboratory conditions on an experimental bench, taking into account the production parameters of processing. As a result of the study, mathematical dependences of the amount of removed moisture for each of five layers of semifinished wet leather product on the feed speed and the pressure of the squeezing rollers were derived. The analysis of the results showed that, with the existing parameters of mechanical dehydration, it was possible to simultaneously squeeze out moisture from five layers of the semi-finished leather product with a minimum pressure of the squeezing rollers and an average feed speed. The productivity of the technological process was more than five times higher in comparison with the productivity of similar roller machines. In the near future, this research methodology will be used to determine the technological factors affecting the extraction of excess moisture from a package consisting of ten semi-finished wet leather products and moisture-removing materials.

scholarly journals A Study of the Potential Use of Red Mud to Obtain Compositions Based on Portland Cement

2020 ◽  
Author(s):  
Ekaterina Gerasimova ◽  
Elizaveta Gumirova
Keyword(s):  
Portland Cement ◽  
Red Mud ◽  
Waste Product ◽  
Cement Stone ◽  
Mathematical Planning ◽  
Alumina Production ◽  
Mineral Additive ◽  
Composition Properties ◽  
Planning Of Experiments ◽  
Potential Use

The paper deals with the problem of utilization of red mud which is a waste product from alumina production using the Bayer method. The principal possible use for the red mud of JSC “Bogoslovsky aluminum plant” (Sverdlovsk region) for the compositions based on Portland cement is shown. It was found that the mud introduction accelerates beginning of the cement paste setting and thickens the paste reducing its mobility. It is concluded that the introduction of red mud up to 30 % is justified in terms of strength indicators. The work is carried out using mathematical planning of experiments. Keywords: red mud, Portland cement, active mineral additive, composition, properties, bauxite, chemical composition, cement stone strength, mathematical planning of experiments

scholarly journals Pharmaco-technological researches for development of tablets composition with amlodipin and enalapril

2020 ◽  
pp. 44-55
Author(s):  
N. S. Behei ◽  
O. V. Tryhubchak
Keyword(s):  
Statistical Data ◽  
Antihypertensive Drugs ◽  
Dispersion Analysis ◽  
Wet Granulation ◽  
Technological Properties ◽  
Technological Parameters ◽  
Mathematical Planning ◽  
Treatment Regimens ◽  
Tapped Density ◽  
Functional Purpose

Ukraine has one of the highest mortality rates from cardiovascular diseases in Europe, accounting for 772.1 cases among men and 440.9 among women per 100 000 population. Antihypertensive drugs are different in dose, active substance and mechanism of action. Monotherapy is ineffective in most cases, therefore it requires a combination of several substances from different pharmacotherapeutic groups. Enalapril and amlodipine are the most often included in treatment regimens for hypertension. Therefore it is advisable to develop combined tablets with enalapril and amlodipine. The aim of the work was to study the effects of excipients on the pharmaco-technological parameters of intermediates and tablets with enalapril and amlodipine. During the work the studied excipients were grouped into 6 factors according to their functional purpose. The experiment was based on the method of mathematical planning. The tablets were preparated by compression after wet granulation. The studies were carried out according to pharmacopoeial methods. Statistical data processing was performed by dispersion analysis. During the experiment it was studied the effects of 30 excipients on the pharmaco-technological properties of granules (loss on drying), tablet mass (fluidity, angle of inclination, bulk density, tapped density) and tablets (uniformity of mass, hardness, friability and disintegration). The effect of 6 qualitative factors on the main reviews (indicators) of granules, powder masses and tablets with enalapril and amlodipine was studied. It is showed by ranked rows of advantages for the influence of excipients on 10 reviews (indicators) of granules, powder masses and tablets with enalapril and amlodipine. As a result of the study, the effects of excipients on the pharmaco-technological parameters of intermediates and tablets with enalapril and amlodipine were studied.

Application of the mathematical-planning method in the investigation of the properties of sintered titanium alloys

1975 ◽  
Vol 14 (9) ◽  
pp. 776-778
Author(s):  
V. M. Anokhin ◽  
R. K. Ognev ◽  
V. B. Raitses ◽  
V. P. Rutberg ◽  
N. A. Kazantseva ◽  
...  
Keyword(s):  
Titanium Alloys ◽  
Planning Method ◽  
Sintered Titanium ◽  
Mathematical Planning

Evaluation of site vibration around Shinkansen viaducts under bullet train

2021 ◽  
pp. 317-325
Author(s):  
X. He ◽  
S. Yamaguchi ◽  
M. Kawatani ◽  
S. Nishiyama
Keyword(s):  
Bullet Train
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