scholarly journals Technological system diagnostics on reliability of specified quality parameter assurance for parts surfaces under machining

2020 ◽  
Vol 2020 (1) ◽  
pp. 15-24
Author(s):  
Vladimir Fedorov ◽  
Anatoliy Suslov ◽  
Maksim Nagorkin
Keyword(s):  
Quality Parameters ◽  
Quality Parameter ◽  
Technological System ◽  
Roughness Parameters ◽  
Diagnostic Systems ◽  
Functional Surface ◽  
Surface Machining ◽  
Complex Approach ◽  
Definition Of ◽  
Experimental Researches

In the paper there is shown a methodology for the parameter reliability diagnostics of the technological systems of machinery functional surface machining on their quality parameters. The problems arisen before designers and technologists and methods for their solution are under consideration. There are recommended roughness parameters affecting considerably the formation of a number of operation properties of surfaces. The circuits for the definition of technological system parameter reliability and a complex approach to experimental researches in the course of diagnostics are considered. The recommendations for the formation of standard computer modules of diagnostic systems and examples of their use are given.

scholarly journals AUTOMATION OF QUALITY PARAMETER CONTROL OF MACHINERY SURFACE LAYER UNDER CONDITIONS OF UNCERTAINTY

2016 ◽  
Vol 2016 (2) ◽  
pp. 59-63
Author(s):  
Олег Федонин ◽  
Oleg Fedonin ◽  
Д. Петрешин ◽  
D. Petreshin ◽  
Александр Хандожко ◽  
...  
Keyword(s):  
Surface Layer ◽  
Parametric Identification ◽  
Quality Parameters ◽  
Control Device ◽  
Quality Parameter ◽  
Technological System ◽  
System Functioning ◽  
Machine Parts ◽  
Surface Layer Quality ◽  
Self Instruction

Under conditions of automated production the matter of ensuring the required parameters of surface layer quality in machine parts at machining becomes urgent. To ensure the required quality parameters of a surface layer (QPSL) in machinery at mechanical oper-ation there are used simulators predicting their values depending on working modes. At the ensuring of QPSL in machine parts at mechanical operation occurs uncertainty connected with the absence of univocal simulators predicting QPSL depending on working modes. One of the methods to solve the uncertainties existing consists in the instruction and self-instruction of a technological system during control and application of obtained and accumulated information at adaptive control. And at the same time the problem of parametric identification at the adopted structure of a simulator is solved. The parametric identification of simulators is carried out by a self-learning technological system of control (STSC). The developed STSC is intended for ensuring the specified parameter of roughness Ra , sur-face residual stresses, surface micro-hardness and the complex quality parameter of friction surface Cx. The algorithm of system functioning is realized as a soft-ware loaded in memory of a control device.

Definition of a New Information-Based Per-Residue Quality Parameter

2005 ◽  
Vol 33 (2) ◽  
pp. 123-134 ◽  
Author(s):  
Sander B. Nabuurs ◽  
Elmar Krieger ◽  
Chris A. E. M. Spronk ◽  
Aart J. Nederveen ◽  
Gert Vriend ◽  
...  
Keyword(s):  
Quality Parameter ◽  
Residue Quality ◽  
New Information ◽  
Definition Of

scholarly journals Automated technological system to ensure contact stiffness of machine parts

2017 ◽  
Vol 2 (8) ◽  
pp. 43-48
Author(s):  
Анатолий Суслов ◽  
Anatoliy Suslov ◽  
Дмитрий Петрешин ◽  
Dmitriy Petreshin ◽  
Олег Федонин ◽  
...  
Keyword(s):  
Contact Stiffness ◽  
Single Stage ◽  
Technological System ◽  
Automated System ◽  
Optimum Conditions ◽  
Technological Support ◽  
Scientific Investigations ◽  
Machine Parts ◽  
Definition Of ◽  
Self Learning

A single-stage technological support of operation properties of machine parts and their joints is based on the integration and on the automated solution of problems of a designer and technologist for the definition of optimum conditions for machining parts at the stage of design-technological pre-production. A joint use of a self-learning technological system and an automated system of scientific investigations of contact stiffness will allow ensuring a required value of the operation property of machine parts and their units with the specified accuracy.

scholarly journals Effect of Organic and Botanicals Priming on Seed Quality Parameter of Pigeonpea (Cajanuscajan (L.) Millspaugh)

2021 ◽  
pp. 1-5
Author(s):  
A. Divij Reddy ◽  
A. K. Chaurasia ◽  
P. K. Shukla ◽  
Ram Pal Singh
Keyword(s):  
Growth Regulators ◽  
Leaf Extract ◽  
Seed Quality ◽  
Quality Parameters ◽  
Quality Parameter ◽  
The Other ◽  
Hard Seed ◽  
Normal Seedling ◽  
Seed Coats ◽  
Moringa Leaf Extract

Presence of hard seed coats and several seed borne pathogens hinder the normal seedling establishment in legumes. Earlier seed enhancement is mainly achieved though synthetics and growth regulators. To evaluate the effect of organics and botanicals on quality parameters of the seed an experiment was conducted in Sam Higginbottom University of Agriculture, Technology and Sciences. Treatments in the experiment comprised of Panchagavya at 3%, 5% and 7% for 12 hrs., Beejamrutha at 5%, 7% and 9% for 12 hrs., Coconut water at 6% and 8% for 12hrs., Moringa leaf extract at 5% and 7% for 12hrs and Sea weed extract at 3% and 5% for 12hrs.Priming with the selected organics and botanicalsis found to enhance the quality parameters compared to untreated control. The treatment Panchagavya at 7% for duration of 12 hours was found to be superior compared to the other treatments in the study.

scholarly journals ANALYSIS OF STATISTICAL DEPENDENCES OF VOICE DATA QUALITY CHARACTERISTICS IN TRAFFIC OF IP-NETWORKS

2019 ◽  
Vol 2019 (6) ◽  
pp. 92-97
Author(s):  
Кирилл Батенков ◽  
Kirill Batenkov ◽  
Александр Королев ◽  
Aleksandr Korolev ◽  
Михаил Илюшин ◽  
...  
Keyword(s):  
Quality Parameters ◽  
Quality Parameter ◽  
Statistical Characteristics ◽  
Tcp Protocol ◽  
Service Information ◽  
Ip Network ◽  
Standard Quality ◽  
Voice Message ◽  
Voice Data

The aim of the work is to investigate statistical characteristics of multimedia services traffic of IP-network on the basis of the service information analysis of package headings. The investigation method is mathematical mod-eling in the Mathcad 14 environment. As a result of the investigations, a mathematical apparatus allowing the fulfillment of a point and interval assessment of separate constituents of voice messaging quality and also the decisionmaking regarding the satisfaction degree by users with the service offered. In the work on the basis of measurements with the aid of the Wireshark program and the TCP protocol there are carried out the investigations of permissible fields in a quality parameter variation of voice message perception. A stochastic tie is revealed between transfer standard quality parameters by means of plotting diagrams and histograms of the assessments of these parameters mutual impact. The most significant indices of transfer quality parameters form the standpoint of their impact upon quality of voice message perception are RTT indices and loss factors.

scholarly journals Variation of Semen Quality Among Three Generations (F1, F2 and F3) of Holstein Friesian Upgraded Breeding Bulls of Bangladesh

2020 ◽  
Vol 7 (3) ◽  
pp. 457-463
Author(s):  
Faruk Hossain ◽  
Md Golam Sorowar ◽  
Sharmin Akter Suma ◽  
Abdullah Al Mansur ◽  
Md Mahbubul Hoque ◽  
...  
Keyword(s):  
First Generation ◽  
Semen Quality ◽  
Sperm Concentration ◽  
Quality Parameters ◽  
Quality Parameter ◽  
Microsoft Excel ◽  
Three Generations ◽  
Holstein Friesian ◽  
Recorded Data ◽  
Mass Activity

The experiment was conducted in a well-known private livestock research and development farm in Bangladesh to find out the variation of semen quality parameter among three generations (F1, F2 and F3) of Holstein Friesian upgraded breeding bulls. A total of 312 ejaculates were collected from 6 upgraded breeding bullsthrought the experimental year. The recorded data were summarized using Microsoft Excel 2010 and analyzed using GraphPad Prism 5 softwere. Out of the 312 ejaculates, 273 (87.50%) were found to be creamy in color followed by 26 (8.33%) and 13 (4.17%) as yellowish and watery, respectively. Generation had significant (P<0.05) effect on ejaculate volume, consistancy, mass activity, sperm concentration, initial and post freezing motility. The highest (7.389±0.19ml) and the lowest (5.156±0.13ml) volume of semen were found in third (F3) and first generation (F1), respectively. The mass activity ranges from 3.74±0.04 to 4.30±0.05. Sperm concentration and pH varied insignificantly (p>0.05) but initial motility and post freezing motility had the significant differences among the three generations. Initial motility ranges from 75.87±0.32 to 78.40±0.38 percent and the post freezing motility ranges from 50.38±0.41 to 52.16±0.43 percent. It could be concluded that most of the semen quality parameters were influenced by generation and freezing. Semen characteristics were better in F2 followed by F3 and F1 generation in upgraded Holstein Friesian bulls. Res. Agric., Livest. Fish.7(3): 457-463,  December 2020

scholarly journals Panjang Karapas dan Laju Pertumbuhan Spesifik Kepiting Bakau (Scylla serrata) yang diberi Jenis Pakan Berbeda di Area Ekowisata Kampung Kepiting, Bali

2017 ◽  
Vol 4 (1) ◽  
pp. 38
Author(s):  
Ni Desak Putu Ida Suryani ◽  
Pande Gde Sasmita Julyantoro ◽  
Ayu Putu Wiweka Krisna Dewi
Keyword(s):  
Water Quality ◽  
Mangrove Ecosystem ◽  
Quality Parameters ◽  
Quality Parameter ◽  
Scylla Serrata ◽  
Coastal Vegetation ◽  
Water Quality Parameter ◽  
Mud Crab ◽  
Different Types ◽  
Critical Components

Mangrove forest is tropical coastal vegetation that grow on muddy and sandy soils which affected by sea tides. One of important commercial species that live in mangrove ecosystem is the mud crab (Scylla serrata). Feed and water quality have been considered as critical components for supporting the growth both of weight and carapace length of this species. This study was conducted from January to February 2017 in the area of ??Ecotourism Kampung Kepiting, Bali. The influence of different natural feed such as Jerbung shrimp (Penaeus merguiensis), Mollusca, lemuru fish (Sardinella lemuru) and sea worms (Nereis sp.) on the growth performance of the mud crab were investigated. Water quality parameter data such as pH, DO, temperature, salinity and ammonium were also collected. The obtained data were analyzed by using variance analysis of Statistical Product and Service Solutions (SPSS) version 21. The result showed that the use of different types of feed have no effect on  the length of carapace, but it has significantly influence on  the specific growth rate of mud crab. Finally, different types of the given feeding were still resulted in the save range of water quality parameters for mud crab culture.

1. On a Practical Constant-Volume Air Thermometer

1889 ◽  
Vol 15 ◽  
pp. 85-93
Author(s):  
J. T. Bottomley
Keyword(s):  
High Temperatures ◽  
Constant Volume ◽  
William Thomson ◽  
Definition Of ◽  
Experimental Researches ◽  
Thermodynamic Scale

In the fourth Mémoire of his celebrated Relation des Expériences, published in 1847, Regnault gives cogent reasons for preferring the air thermometer before any other as the instrument by means of which temperatures may be defined, and high temperatures determined. The thermodynamic researches of Sir William Thomson have furnished an absolute thermodynamic definition of temperatures ; and the experimental researches of Dr Joule and Sir William Thomson have established the practical agreement of Regnault's air thermometers with the thermodynamic scale of temperatures. Lastly, the air thermometer is at present the only instrument, with the exception of a mercurial thermometer which has been compared with an air thermometer, by means of which temperatures higher than, say, 150° C. or 200° C. can be determined within 3° C. or 4° C.*

scholarly journals Investigation of Variations of Invertase and Glucose Oxidase Degrees against Heating and Timing Options in Raw Honeys

2020 ◽  
Vol 2020 ◽  
pp. 1-7 ◽  
Author(s):  
Huseyin Sahin ◽  
Sevgi Kolayli ◽  
Mehmet Beykaya
Keyword(s):  
Glucose Oxidase ◽  
Invertase Activity ◽  
Quality Parameters ◽  
Quality Parameter ◽  
Different Temperatures ◽  
Enzyme Unit ◽  
Raw Honey ◽  
Hydrolysis Of ◽  
Optimal Heating ◽  
Microbial Effects

Invertase and glucose oxidase are secreted by the hypopharyngeal glands of honeybees for the hydrolysis of sucrose and the preservation from microbial effects, respectively. It is also prominent to understand how the levels of invertase and glucose oxidase of raw honey samples are being influenced by different conditions because the behavior of these specific enzymes in raw honeys could be a marker for the quality parameters. On the basis of this expectation, three raw honey samples tagged as blossom, pine, and oak were investigated. To reach the desired aim, extraction conditions were diversified by the range of different periods as 0, 1, 3, and 6 h and of different temperatures as 24, 45, and 65°C. The optimal heating condition and the period of extraction for invertase activity of all honey types were 24°C and 1 h because data of this condition were 147.960–178.266 enzyme unit per kilogram (U/kg) and 20.179–24.313 invertase number (IN). Although the variety of glucose oxidase activity was not evaluated as a worthwhile indicator of quality for raw honey due to its abnormal activity behavior, the change of invertase activity should be considered as a quality parameter due to showing the gradual decreasing level from initially a quite high one.

The Weakening of Ideological Influences upon Soviet Design

Slavic Review ◽  
1968 ◽  
Vol 27 (1) ◽  
pp. 71-84 ◽  
Author(s):  
Raymond Hutchings
Keyword(s):  
Communist Party ◽  
Fine Arts ◽  
The Body ◽  
Detailed Consideration ◽  
Extended Treatment ◽  
Visual Form ◽  
Complex Approach ◽  
Present Context ◽  
Soviet Ideology ◽  
Definition Of

In this Article I shall examine the visual form or appearance (shape, size, and other visible qualities) of Soviet socially produced things (excluding any detailed consideration of trends in the fine arts or of individual craftsmanship) in relation to forces in Soviet ideology which seem to have influenced this form or appearance. (I do not attempt to describe all influences which bear on Soviet design, which would require a much more complex approach and a more extended treatment.) My definition of Soviet “ideology” would be the same as Professor Meyer's: the body of doctrine that is taught by the Communist Party to all Soviet citizens. Whether or not this doctrine is true, or thought to be true, as well as why it is propagated, or whether this would be a complete definition—these questions are considered to be irrelevant in the present context.

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