scholarly journals STUDY OF THE EFFICIENCY OF SQUEEZING MOISTURE-SATURATED PRODUCTS

2021 ◽  
pp. 86-96
Author(s):  
Gayrat Bahadirov ◽  
Gerasim Tsoy ◽  
Ayder Nabiev
Keyword(s):  
Experimental Study ◽  
Energy Consumption ◽  
Technological Process ◽  
Experimental Research ◽  
Practical Importance ◽  
Experimental Studies ◽  
Leather Industry ◽  
Mathematical Planning ◽  
Roller Machine

The leather industry includes many technological machines; a squeezing roller machine is used in many operations, for example, in squeezing, degreasing, and after drum dyeing of a semi-finished leather product. The paper presents the results of experimental studies obtained by determining the influence of multilayer wet leather semi-finished products with monshons under squeezing on the amount of the moisture extracted. Mathematical dependences of the amount of the moisture extracted, for each layer of a five-layer wet leather semi-finished product on the feed rate between the squeeze rollers and the roller pressure were obtained. Experimental research is of scientific and practical importance for the development of a technological process for extracting moisture from wet leather semi-finished products used in the tannery, since the quality of the extraction affects the quality of subsequent technological operations, such as leather shaping and splitting. An experimental study was performed using the method of mathematical statistics, namely, the method of mathematical planning of the experiment. Mathematical models were obtained for the amount of extracted moisture from five wet leather semi-finished products depending on the rate of their simultaneous feed and the pressure of the squeezing rollers. The results of the experiment showed that in squeezing a five-layer product, the productivity of the technological process of extracting moisture from wet leather semi-finished products increases by five times in comparison with existing squeezing roller machines. The use of the results of the experimental study will contribute to a significant reduction in the energy consumption of the squeezing roller machine by simultaneous multi-layer processing of wet leather semi-finished products

Results of an experimental study of hydrogel drainage containing ranibizumab in antiglaucoma operations

2021 ◽  
pp. 63-67
Author(s):  
I.I. Khusnitdinov ◽  
Keyword(s):  
Experimental Study ◽  
Hyaluronic Acid ◽  
Key Words ◽  
Experimental Research ◽  
Experimental Studies ◽  
Glaucoma Surgery ◽  
Control Group ◽  
Morphological Studies

Purpose. Еxperimental substantiation of the effectiveness of biocompatible biodegradable hydrogels based on hyaluronic acid and chitosan succinate as a carrier of ranibizumab in antiglaucoma operations. Material and methods. Hydrogel drainage (HD) was obtained immediately before surgery. A solution of ranibizumab (0.23 ml) was mixed with a solution of hyaluronic acid dialdehyde (0.5 ml), then a solution of chitosan succinate (0.5 ml) was added. Experimental studies were performed in 12 (12 eyes) healthy rabbits. The first group consisted of 6 eyes – 0.187 ml of ranibizumab per 1 ml of gel. In the control group, HD was used intraoperatively without the addition of ranibizumab (6 eyes). Morphological studies were performed on 7th, 21st, and 42nd days. Results. In experimental studies in vitro and in vivo, it was proved that ranibizumab, administered as a part of 0.1 ml of hydrogel drainage in the antiglaucoma surgery area is released within 3 weeks and suppresses vascularization, scarring of the operating area, and preserves the intrascleral cavity. The optimal concentration of ranibizumab was selected-0.02 ml in 0.1 ml of gel. Conclusion. The safety and effectiveness of the use of hydrogel drainage with ranibizumab based on hyaluronic acid dialdehyde and chitosan succinate in anti-glaucoma operations has been proven. Key words: experimental research, hydrogel drainage, ranibizumab, glaucoma surgery.

scholarly journals EXPERIMENTAL RESEARCH METHODOLOGY OF ELEMENTS WITH COMPOSITE FITTINGS WITH BENDING AT PRIORITY SECTIONS

2020 ◽  
Vol 5 (9) ◽  
pp. 8-14
Author(s):  
S. Merkulov ◽  
E. Akimov
Keyword(s):  
Experimental Study ◽  
Crack Resistance ◽  
Experimental Research ◽  
Research Methodology ◽  
Experimental Studies ◽  
Strain Condition ◽  
Joint Operation ◽  
Composite Rod ◽  
Concrete Elements ◽  
Composite Reinforcement

The inability of using this type of reinforcement as a cross on the support sections of the bent elements is one of the reasons limiting the wide use of composite rod reinforcement. To ensure the strength of bent elements along inclined sections, it is proposed to bend the rods of the working longitudinal working reinforcement, and geometric parameters of bends for some types of composite reinforcement are proposed, depending on the diameter of the rod. To develop a method for calculating the strength of inclined sections, it is necessary to develop experimentally justified prerequisites that take into account the features of joint operation of composite rod reinforcement in inclined sections. The article offers a method for experimental study of the strength and crack resistance of reinforced concrete bending elements with non-metallic composite rod reinforcement, including the design of prototypes, the installation scheme of devices during testing. The developed method allows to determine the parameters of strength and crack resistance of inclined sections of bent elements. The tasks of experimental studies of concrete elements reinforced with composite rod reinforcement are to determine the regularity of changes in the stress-strain condition of concrete and composite reinforcement during loading, to determine the nature of the destruction of elements along the inclined section, to obtain data on the strength and crack resistance of elements.

scholarly journals Research on the Work Process of a Station for Preparing Forage

2020 ◽  
Vol 12 (3) ◽  
pp. 1050
Author(s):  
Andrzej Marczuk ◽  
Wojciech Misztal ◽  
Sergey Bulatov ◽  
Vladimir Nechayev ◽  
Petr Savinykh
Keyword(s):  
Energy Consumption ◽  
Specific Energy Consumption ◽  
Experimental Studies ◽  
Evaluation Criteria ◽  
Operating Conditions ◽  
Measuring Instruments ◽  
Special Role ◽  
Work Process ◽  
Location Parameters

Forage from grain plays a special role in animal nutrition because it constitutes feed with a high content of readily available carbohydrates. Unfortunately, the equipment used to prepare forage is often manufactured without the necessary justification and confirmation of the declared sizes and indicators of the work process. This forms the basis for our theoretical and experimental studies. Research has been carried out to provide justification of the design and operating parameters of the patented station for producing forage from cereal crops. This article describes the technology for preparing forage from grain and provides a detailed description of the station used and the principle of its operation. During the experiments, we studied the influence of the angle α of setting the grid-work (plate) and the distance S from the nozzle to the grid-work on the quality of forage. Qualitative, quantitative, and energy indicators have been evaluated using up-to-date measuring instruments and equipment. The method is described, and the studied factors and evaluation criteria for the preparation of forage from grain are indicated. The forage quality results are presented, as determined by the content of whole grains in it via the residue on a sieve with a sieve size of 3 mm when preparing it with a different combination of the studied factors. The analysis of the energy consumption results of the process of preparing forage from grain under various operating conditions of the plant is shown. As a result, the optimal location parameters of the passive grinder have been found, allowing to obtain high-quality forage with minimal power consumption of the electric motor. A grid-work should be used as a grinder. Its installation angle should be 30°, and the distance between the grid-work and the nozzle should be 205 mm. With this combination of parameters, the specific energy consumption is minimal and amounts to 41.5 W·h/L.

scholarly journals Mini crusher-shredder for farms

2021 ◽  
Vol 264 ◽  
pp. 04038
Author(s):  
Komil Astanakulov ◽  
Fakhriddin Karshiev ◽  
Shokir Gapparov ◽  
Dilshod Khudaynazarov ◽  
Shavkat Azizov
Keyword(s):  
Rotation Angle ◽  
High Reliability ◽  
Experimental Studies ◽  
Mathematical Planning ◽  
Quality Performance ◽  
Working Bodies ◽  
Planning Of Experiments ◽  
Good Visibility ◽  
Rotary Type

The purpose of the study is to substantiate the parameters of a mini crusher-shredder for processing coarse feed stalks in farms. The feasibility of using a mini crusher-shredder for processing coarse feed in the conditions of farms and farms with a small number of animals, which has a rotary-type shredder that combines the operations of grinding and crushing, is justified. The research uses the laws and rules of mathematical statistics, mathematical planning of experiments, and the methods given in existing regulatory documents. Experimental studies were carried out to study the influence of the rotor parameters of the mini crusher-shredder on its quality performance. A compact crusher-shredder has been developed, which has good visibility of the working bodies, high reliability, and quality of work due to zootechnical requirements. Experimental studies have established that when using a hammer of a flat-turned shape with a lower sharpening and a rotation angle of 60 or more, high-quality grinding of the stems is provided.

Inside the Arbitrator's Mind

2018 ◽  
Author(s):  
Susan D. Franck ◽  
Anne van Aaken ◽  
James Freda ◽  
Chris Guthrie ◽  
Jeffrey J. Rachlinski
Keyword(s):  
Decision Making ◽  
Dispute Resolution ◽  
Decision Maker ◽  
Experimental Research ◽  
Experimental Studies ◽  
Black Box ◽  
Judgment And Decision Making ◽  
Conventional Wisdom ◽  
Quality Decision

66 Emory Law Journal 1115 (2017)Arbitrators are lead actors in global dispute resolution. They are to global dispute resolution what judges are to domestic dispute resolution. Despite its global significance, arbitral decision making is a black box. This Article is the first to use original experimental research to explore how international arbitrators decide cases. We find that arbitrators often make intuitive and impressionistic decisions, rather than fully deliberative decisions. We also find evidence that casts doubt on the conventional wisdom that arbitrators render “split the baby” decisions. Although direct comparisons are difficult, we find that arbitrators generally perform at least as well as, but never demonstrably worse than, national judges analyzed in earlier research. There may be reasons to prefer judges to international arbitrators, but the quality of judgment and decision making, at least as measured in these experimental studies, is not one of them. Thus, normative debates about global dispute resolution should focus on using structural safeguards and legal protections to enhance quality decision-making, regardless of decision maker identity or title.

scholarly journals Influence of working bodies of technical means on injury and quality of seed of grain crops

2020 ◽  
Vol 11 (3) ◽  
pp. 49-54
Author(s):  
D. A. Derevianko ◽  
◽  
V. M. Polishchuk ◽  
O. D. Derevianko ◽  
◽  
...  
Keyword(s):  
Technological Process ◽  
Theoretical Calculations ◽  
Structural Parameters ◽  
Experimental Studies ◽  
Grain Crops ◽  
Transportation Process ◽  
Working Bodies ◽  
The Relationship ◽  
Harmful Effects

Theoretical calculations and experimental studies show that during the technological process of transporting seeds by technical means, in particular ladle conveyors, macro- and especially microtrauma of grains occurs, which affects a decrease in quality indicators. Analysis of the studies shows that the structural parameters of the working bodies, the biological and physico-mechanical properties of the kernels, as well as the material for the manufacture or coating of the working elements, affect the trauma and quality of the seeds. Experimental data showed that microtrauma of winter wheat grains before transportation was in the range of 22,9- 23,5%, and after completion of the transportation process was 45,3-46,4%, that is, doubled. Further studies to improve the quality of seeds of grain crops, reduce the harmful effects of microorganisms on caryopsis and reduce macro- and microtrauma should be carried out in the relationship and the complex of biological and physico-mechanical features of the entire technological process.

scholarly journals STUDIES OF RELIGIOUS EXPERIENCE: FROM THEORY TO EXPERIMENT

2021 ◽  
pp. 115-123
Author(s):  
ANASTASIYA A. ZUBKOVSKAYA ◽  
Keyword(s):  
Experimental Study ◽  
20Th Century ◽  
Religious Experience ◽  
Experimental Research ◽  
Scientific Knowledge ◽  
Research Program ◽  
Experimental Studies ◽  
Experimental Methodology ◽  
Medical Technologies

The article presents an analysis of experimental studies of religious experience conducted in the laboratory using medical technologies of electroencephalography (EEG) and tomography (including fMRI, PET, SPECT, etc.). The relevance of the article is due to modern trends in the revision of the role of Humanities in the structure of the scientific knowledge. The article considers early attempts of experimental study of religion from the first half of the 20th century; the author tries to make a relevant periodization of experimental research program in the science of religion. The conclusion summarizes the progress of the considered research program and points to modern trends in Humanities caused by implementation of the experimental methodology.

scholarly journals Improving the quality of milk dispersion in a counter-jet homogenizer

10.5219/1407 ◽  
2020 ◽  
Vol 14 ◽  
pp. 633-640
Author(s):  
Kyrylo Samoichuk ◽  
Dmytro Zhuravel ◽  
Nadiya Palyanichka ◽  
Vadim Oleksiienko ◽  
Serhii Petrychenko ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Milk Fat ◽  
Specific Energy Consumption ◽  
Experimental Studies ◽  
Average Diameter ◽  
Optical Microscope ◽  
Design Parameters ◽  
Fat Globules

Homogenization is a necessary process in the production of drinking milk and most dairy products. The specific energy consumption of the most common valve homogenizers reaches 8 kW h.t-1. A promising way to reduce it is the introduction of more effective counter-jet homogenizers. The purpose of these studies is to increase the efficiency of machines of this type through fuller use of their kinetic energy. To achieve this, the design of a ring reflector was developed and experimental studies were carried out to determine its influence on the efficiency of milk fat dispersion in a counter-jet homogenizer. Calculations were made to determine the reflector’s design parameters. An installation for experimental research has been developed, in which the required milk pressure is created with the help of compressed carbon dioxide. The dispersive indices of the milk emulsion were determined by computer analysis of milk sample micrographs obtained with an optical microscope and a digital camera using Microsoft Office Excel and Microsoft Visual Studio C# software using the OpenCV Sharp library. As a result of research, the formula for defining the angle of the reflector top has been determined analytically. Experimental studies proved its validity and allowed determination of the optimal diameter. A comparison of the dependence of the degree of homogenization on the excess pressure in a counter-jet homogenizer proves a 15 – 20% increase in the degree of dispersion when using a reflector. At the same time, specific energy consumption does not increase. Comparison of the distribution curves of milk fat globules by size after counter-jet homogenization and homogenization with a reflector suggests that the average diameter of fat globules for the experimental method decreases from 0.99 to 0.83 μm. This indicates the high quality of the dispersal characteristics of the milk emulsion after processing in a counter-jet homogenizer with a reflector.

scholarly journals Parameters of the angle-lift of the front plow for smooth, rowless plowing

2021 ◽  
Vol 264 ◽  
pp. 04042
Author(s):  
Nikolay Aldoshin ◽  
Sherzod Kurbanov ◽  
Akmal Abdullaev ◽  
Alham Khujayev ◽  
Dilsabo Choriyeva
Keyword(s):  
Carbon Monoxide ◽  
Experimental Studies ◽  
Energy Costs ◽  
Mathematical Planning ◽  
Quality Performance ◽  
Side Face ◽  
Required Quality ◽  
Theoretical Mechanics ◽  
Planning Of Experiments

To improve the quality and energy indicators on the front plow in front of the housings, the angle axes are installed in the form of a triangular wedge. The purpose of the study is to substantiate the parameters of the angle-lift of the front plow, which provides high-quality performance of the technological process according to agrotechnical requirements with the lowest energy costs for smooth, rowless plowing. The research uses the laws and rules of theoretical mechanics, mathematical statistics, mathematical planning of experiments, and methods of strain measurement, as well as the methods given in existing regulatory documents. Based on the study of the process of interaction of the carbon monoxide with the soil, analytical dependences are obtained that allow us to determine the parameters of the carbon monoxide. According to the results of theoretical and experimental studies, it was found that the required quality of tillage with a front plow following the established agrotechnical requirements with minimal energy consumption is provided at the height of 22 cm, a length of 27 cm, a wing angle of 32° and an angle of inclination of the side face of 36°.

Experimental Study of the Effectiveness of the Vibromechanical Stabilization of Bearing Rings

2018 ◽  
Vol 284 ◽  
pp. 1327-1331
Author(s):  
Albert Viktorovich Korolev ◽  
A.F. Balaev ◽  
A.A. Korolev
Keyword(s):  
Residual Stress ◽  
Experimental Study ◽  
Energy Consumption ◽  
Residual Stresses ◽  
Capital Investment ◽  
Experimental Studies ◽  
Thermal Tempering ◽  
And Performance ◽  
The Cost ◽  
Bearing Rings

The paper provides the comparison of vibromechanical technology for stabilization of bearing rings and thermal tempering on the following parameters: performance, energy consumption, and magnitude of residual stresses after treatment. To assess the effectiveness of residual stress relaxation through the usage of vibromechanical energy, there were conducted experimental studies on a specially designed and manufactured prototype of the equipment. The results of experimental studies show that the energy consumption during vibromechanical stabilization is ten times less, and performance is several times higher than during the thermal tempering. Moreover, vibromechanical stabilization allows more effective residual stresses relaxation. The costs for capital investment can be reduced, as the cost of equipment for vibromechanical stabilization is ten times less than the cost of electric furnaces.

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