TECHNOLOGICAL DESIGNING NC LATHES BASED ON REGIONAL MACHINERY AND DEVICE DATA BANK

2021 ◽  
Vol 2021 (6) ◽  
pp. 30-35
Author(s):  
Vyacheslav Epifanov
Keyword(s):  
Data Bank ◽  
Original Data ◽  
Common Element ◽  
Technological Parameters ◽  
Instrument Making ◽  
Technological Basis ◽  
Aircraft Manufacturing ◽  
Technological Characteristics ◽  
Nc Machine ◽  
Definition Of

The manufacturers of NC machine-tools pay little attention to the analysis of consumer requests that is to production and technological conditions typical to the majority of equipment customers. The work purpose consists in the optimization of NC lathe (NCL) technological potentialities based on the analysis of machinery and device characteristics. The scientific novelty of the work consists in a new approach to the substantiation of NC lathes parameters based on their interconnection with machinery characteristics, formation of original data bank on parts of the Uliyanovsk region companies (200,000 of items) presenting different branches of industry: aircraft manufacturing, shipbuilding, machine tool construction, automotive industry, instrument making et al. stage-by-stage parts grouping on the basis of ESKD classifier and the application of a cluster analysis. As a result of investigations there are revealed eight parts groups of revolution solids, design-technological characteristics which should be used as a technological basis for designing and choice of NC lathes (NCL). For all groups of parts there are developed complex parts (CP) generalizing all design-technological characteristics of group parts and group technological operations (GTO) for their production. The substantiation of GTO formation scheme was carried out according to shown costs Cmanuf. for machining a complex part. The design-technological characteristics and schemes of GTO formation are initial data for the definition of basic technological parameters of a new range of NCLs or the choice of the most suitable existing NCL. As a result there are substantiated NCL basic parameters for machining eight groups of parts. The design and production of all eight NCLs should be organized according to block-modular principle that is on a single common element base. To realize this principle there is substantiated a unified structure of functional units of the machine for the creation of all NCLs with different technological potentialities.

A revision of the Anthaxia (Anthaxia) midas Kiesenwetter, 1857 species-group (Coleoptera: Buprestidae: Anthaxiini)

Zootaxa ◽  
2018 ◽  
Vol 4370 (3) ◽  
pp. 201
Author(s):  
DANIELE BAIOCCHI ◽  
GIANLUCA MAGNANI
Keyword(s):  
New Species ◽  
Original Data ◽  
Species Group ◽  
Taxonomic Position ◽  
Similar Species ◽  
Type Specimens ◽  
Diagnostic Characters ◽  
Definition Of ◽  
A New Species ◽  
Unknown Male

The Anthaxia (Anthaxia) midas Kiesenwetter, 1857 species-group is defined and revised. A new species from Turkey, A. (A.) cebecii sp. nov., is described and compared to its most similar species. A. midas oberthuri Schaefer, 1938 is elevated to the rank of species, and a lectotype is designated. A. (A.) spathuligera Obenberger, 1924 and A. (A.) midas muelleri Obenberger, 1925 are reconfirmed synonyms of A. midas Kiesenwetter, 1857.All species of the new species-group are illustrated, including the hitherto unknown male of A. (A.) patsyae Baiocchi, 2008, all type specimens and original data labels. In addition to diagnostic characters, informations on the distribution, biology and taxonomic position of each species are also presented, together with a short definition of the new species-group, and a key to its species. 

scholarly journals The first dinosaur egg remains a mystery

2020 ◽  
Author(s):  
Lucas J. Legendre ◽  
David Rubilar-Rogers ◽  
Alexander O. Vargas ◽  
Julia A. Clarke
Keyword(s):  
Branch Length ◽  
Original Data ◽  
Total Sample ◽  
Phylogenetic Comparative Methods ◽  
Prismatic Structure ◽  
Definition Of ◽  
Dinosaur Eggs ◽  
Larger Sample ◽  
Continuous Character ◽  
Reptile Egg

AbstractA recent study by Norell et al. (2020) described new egg specimens for two dinosaur species, identified as the first soft-shelled dinosaur eggs. The authors used phylogenetic comparative methods to reconstruct eggshell type in a sample of reptiles, and identified the eggs of dinosaurs and archosaurs as ancestrally soft-shelled, with three independent acquisitions of a hard eggshell among dinosaurs. This result contradicts previous hypotheses of hard-shelled eggs as ancestral to archosaurs and dinosaurs. Here we estimate the ancestral condition for dinosaur and archosaur eggs by reanalyzing the original data from Norell et al. and that from a recent study on reptile eggshells (Legendre et al., 2020) with the addition of these new dinosaur specimens. We show that the recovery of dinosaur eggs as ancestrally soft-shelled is conditioned by the discretization of a continuous character (eggshell thickness), the exclusion of turtle outgroups from the original sample, and a lack of branch length information. When using a larger sample, calibrated trees, and a definition of hard-shelled eggs referencing their unique prismatic structure, we recover dinosaur and archosaur eggs as either hard-shelled or uncertain (i.e. equal probability for hard- and soft-shelled). This remaining ambiguity is due to uncertainty in the assessment of eggshell type in two dinosaur species, i.e. ∼1% of the total sample. We conclude that more reptile egg specimens and a strict comparative framework are necessary to decipher the evolution of dinosaur eggs in a phylogenetic context.

scholarly journals DIAGNOSTICS OF THE PRODUCTION POTENTIAL OF THE ENTERPRISE

2020 ◽  
Author(s):  
Taisiya Voronkova ◽  
◽  
Anastasiia Vovkodav ◽  
Keyword(s):  
Cost Estimation ◽  
Production Management ◽  
Evaluation Criteria ◽  
Original Data ◽  
Production Potential ◽  
Industrial Enterprises ◽  
Long Run ◽  
Modern Business ◽  
Method Of Production ◽  
Definition Of

A market economy requires flexibility in the operation of industrial enterprises, prompt adjustment of the nature and directions of production processes. That is why, in modern business conditions, the importance of not only ensuring the efficiency of economic entities, but also the formation of their potential and prospects for further development. It is proved that some modern industrial enterprises are characterized by the inability to really assess the production potential, incomplete use of available resources, the latest technologies, and modern methods of production management. Production potential has been identified as having several specific characteristics: integrity, interchangeability, interconnection, flexibility, or adaptability. It is noted that the potential concentrates three levels of connections and relationships at the same time: reflects the past, characterizes the present in terms of practical application, future-oriented. Six main methods used in the estimation of production potential are investigated and characterized: economic-statistical, method of production functions, method of cost estimation, index, indicator, and matrix methods. The principles that must be followed when diagnosing the production potential of the enterprise are determined: the completeness of the original data and the universality of the information base; reliability and availability of collected data; the possibility of using two types of assessment of production potential: resource-productive and rating; use of the concept of potential in a certain direction; use of basic and additional indicators; availability of certain evaluation criteria for the main and additional indicators. It is substantiated that the interpretation of the definition of “production potential” is ambiguous, as well as the methods of its evaluation. It is noted that without the study of production potential is not possible strategic development and planning of other activities of the enterprise and the process of managing the production potential of an industrial enterprise is aimed at efficient use of all its resources in the long run.

Electroplating of Indium-Cadmium and Tin-Cadmium Alloy Coatings

2022 ◽  
Vol 1049 ◽  
pp. 124-129
Author(s):  
Sergey Yu. Kireev ◽  
Svetlana N. Kireeva ◽  
Anatoly Frolov ◽  
Alfiya Yangurazova ◽  
Konstantin Anopin
Keyword(s):  
Protective Coatings ◽  
Machine Building ◽  
Corrosion And Wear ◽  
Electric Resistance ◽  
Technological Parameters ◽  
Good Adhesion ◽  
Instrument Making ◽  
Building Products ◽  
Climatic Testing ◽  
Marine Climate

Technological parameters for electroplating cadmium alloy (Cd (24)-In and Cd (33)-Sn) coatings from low toxic solutions have been proposed. Since the fabricated alloy coatings possess low internal stress and microhardness, good adhesion property, high corrosion and wear resistance, they can be used as protective coatings for machine building products to enhance reliability and operability thereof. The presence of good solderability and low values of transient electric resistance in climatic testing favor these coatings to be applied in hetero-structured contact systems of instrument making products for increasing their reliability and operability in a tropical marine climate.

scholarly journals Reply to Nicholson's comment on "Consistent calculation of aquatic gross production from oxygen triple isotope measurements" by Kaiser (2011)

2012 ◽  
Vol 9 (8) ◽  
pp. 2921-2933 ◽  
Author(s):  
J. Kaiser ◽  
O. Abe
Keyword(s):  
Isotope Fractionation ◽  
Direct Calculation ◽  
Original Data ◽  
Delta Method ◽  
Base Case ◽  
Calculation Methods ◽  
Input Parameters ◽  
Net To Gross ◽  
Number Of Publications ◽  
Definition Of

Abstract. The comment by Nicholson (2011a) questions the "consistency" of the "definition" of the "biological end-member" used by Kaiser (2011a) in the calculation of oxygen gross production. "Biological end-member" refers to the relative oxygen isotope ratio difference between photosynthetic oxygen and Air-O2 (abbreviated 17δP and 18δP for 17O/16O and 18O/16O, respectively). The comment claims that this leads to an overestimate of the discrepancy between previous studies and that the resulting gross production rates are "30% too high". Nicholson recognises the improved accuracy of Kaiser's direct calculation ("dual-delta") method compared to previous approximate approaches based on 17O excess (17Δ) and its simplicity compared to previous iterative calculation methods. Although he correctly points out that differences in the normalised gross production rate (g) are largely due to different input parameters used in Kaiser's "base case" and previous studies, he does not acknowledge Kaiser's observation that iterative and dual-delta calculation methods give exactly the same g for the same input parameters (disregarding kinetic isotope fractionation during air-sea exchange). The comment is based on misunderstandings with respect to the "base case" 17δP and 18δP values. Since direct measurements of 17δP and 18δPdo not exist or have been lost, Kaiser constructed the "base case" in a way that was consistent and compatible with literature data. Nicholson showed that an alternative reconstruction of 17δP gives g values closer to previous studies. However, unlike Nicholson, we refrain from interpreting either reconstruction as a benchmark for the accuracy of g. A number of publications over the last 12 months have tried to establish which of these two reconstructions is more accurate. Nicholson draws on recently revised measurements of the relative 17O/16O difference between VSMOW and Air-O2 (17δVSMOW; Barkan and Luz, 2011), together with new measurements of photosynthetic isotope fractionation, to support his comment. However, our own measurements disagree with these revised 17δVSMOW values. If scaled for differences in 18δVSMOW, they are actually in good agreement with the original data (Barkan and Luz, 2005) and support Kaiser's "base case" g values. The statement that Kaiser's g values are "30% too high" can therefore not be accepted, pending future work to reconcile different 17δVSMOW measurements. Nicholson also suggests that approximated calculations of gross production should be performed with a triple isotope excess defined as 17Δ#≡ ln (1+17δ)–λ ln(1+18δ), with λ = θR = ln(1+17ϵR ) / ln(1+18ϵR). However, this only improves the approximation for certain 17δP and 18δP values, for certain net to gross production ratios (f) and for certain ratios of gross production to gross Air-O2 invasion (g). In other cases, the approximated calculation based on 17Δ† ≡17δ – κ 18δ with κ = γR = 17ϵR/18ϵR (Kaiser, 2011a) gives more accurate results.

The Mathematical Model for Studying Bearing Reliability Unconventional Treated

2013 ◽  
Vol 371 ◽  
pp. 606-611
Author(s):  
Mirela Gheorghian ◽  
Gheorghe Simionescu
Keyword(s):  
Heat Treatment ◽  
Ultrasonic Field ◽  
Point Of View ◽  
Cold Plastic Deformation ◽  
Technological Parameters ◽  
Bearing Steels ◽  
Heat Treated ◽  
Definition Of ◽  
The Mathematical Model

The reliability reprezents the main criterion, which imposes itself in the definition of the reliability and the competition of the bearins. The rotation precision and the functional role of the bearings are realized if is a good dimensional stability and proper mechanical properties during the running. To fulfill these conditions it is necessary to establish the technological parameters of the processes of primary heat treatment, hot or cold plastic deformation, intermediate heat treatment, mechanical processing, final heat treatment below 0°C or in ultrasonic field. The comparative evaluation of different variants of heat treatment classic or nonconventional (cryogenic or ultrasonic) which are applied on bearing steels from the point of view of reliability have revealed significant increases of the values of real and median reliability for non-conventional heat treated steels, [.

scholarly journals The Terminological Data Bank “Classification Parameters of Phraseological Units” as an Electronic Terminographic Product: Design Experience

2020 ◽  
pp. 117-132
Author(s):  
Zhanna V. Krasnobaieva-Chernaya ◽  
Keyword(s):  
Data Bank ◽  
Russian Language ◽  
Scientific Methods ◽  
Language Version ◽  
Electronic Catalog ◽  
Analysis And Synthesis ◽  
Bank Technology ◽  
Information Optimization ◽  
Definition Of ◽  
Theoretical Foundations

The aim of the study is to design an electronic terminographic product in the form of a terminological data bank (TDB) “Classification Parameters of Phraseological Units” with consistent implementation of infological and datological stages. The object in the study is the TDB, the focus is terms for designation of types of phraseological units (PU), which actively function in Ukrainian and Russian linguistics in the 2nd half of the 20th century to 2020. The methodology of the study is based on theoretical foundations of phraseology, terminology, applied linguistics, and computer terminography (linguistic database/data bank technology). The general and specific scientific methods are used: analysis and synthesis, ascent from the abstract to the concrete, classification, definitional analysis, identification, linguistic observation and description, selection, elements of a statistical method. The infological stage is related to the solution of a set of information problems: 1) definition of the principle of regularization of terms of phraseology, 2) selection of terms with the archeseme “phraseoclassification type” from scientific literature in order to form an alphabetical register, 3) establishment of the composition of the dedicated terminology subsystems, 4) description of terminology subsystems, 5) creation of an electronic catalog of terms for further computer processing of collected information. The main principle of systematization is the thesaurus: “terminological system – terminological microsystem – terminological subsystem – term”. The next step is to develop a datalogical scheme, which is a system of tables whose fields display information about the described terms in the form of data, for example: number, term, terminology subsystem, scientific source, definition, illustration, paradigm relations of the term. The TDB modeled in the work is a special terminology dictionary (monolingual (Ukrainian) in terms of the number of languages involved), which has 113 terms to denote types of PUs and covers 17 classifications of PUs. The TDB “Classification Parameters of Phraseological Units” is positioned as an electronic terminographic product created for storage of information, optimization and intensification of system research on fundamental issues of phraseology and phraseography, works devoted to problems of comprehensive analysis and parameterization of PUs. The prospect of the study is to create a Russian-language version of this terminographic product.

scholarly journals THE STUDY OF ORGANOLEPTIC AND FUNCTIONAL-TECHNOLOGICAL PROPERTIES OF PORK MUSCLE TISSUE NOR AND PSE AT THE INDUSTRIAL ENTERPRISES OF THE SOUTHERN FEDERAL DISTRICT

2018 ◽  
Vol 3 (4) ◽  
pp. 49-57
Author(s):  
Olga N. Orlova ◽  
Vitaliy S. Mkrtichyan ◽  
Ludmila V. Skripnik ◽  
Ludmila V. Krichun
Keyword(s):  
Muscle Tissue ◽  
Positive Impact ◽  
Raw Materials ◽  
Binding Capacity ◽  
Federal District ◽  
Data Bank ◽  
Meat Processing ◽  
Technological Parameters ◽  
Industrial Enterprises ◽  
Cooking Properties

The paper presents the results of studies of organoleptic (color, consistency, water content) and functional-technological (pH, moisture binding capacity and loss of juice during cooking) properties of muscle tissue of NOR and PSE pork, obtained from animals transported at distances of 50 and 170 km, depending on pre-slaughter preparation. Experimental data of systematization of pork properties and calculation of the quantitative value of meat properties allowed to establish pork belonging to the quality groups NOR and PSE and to form a data bank of organoleptic and functional-technological parameters of pork muscle tissue entering the meat processing enterprises of the Southern Federal district. It is shown, that pork from rested animals had higher organoleptic and functional-technological parameters and higher quality levels of meat properties. The results of the studies confirm the positive impact of pre-slaughter preparation of pigs on the quality of their meat raw materials

scholarly journals Validation of technological process of preparation hymoding cream with hyaluronic acid

2021 ◽  
pp. 27-35
Author(s):  
Т. Г. Ярних ◽  
Г. М. Мельник ◽  
О. А. Рухмакова
Keyword(s):  
Risk Assessment ◽  
Hyaluronic Acid ◽  
Technological Process ◽  
Critical Parameters ◽  
Documentary Evidence ◽  
Technological Parameters ◽  
Eligibility Criteria ◽  
Critical Control Points ◽  
Definition Of ◽  
The Impact

To date, in the mass production of medicines both in pharmaceutical companies and in pharmacies, more and more attention is paid to the practice of process validation. Validation is a key condition for the implementation of Good Manufacturing (GMP) and Pharmacy (GPP) practices, the standards of which are mandatory for medicines worldwide and in Ukraine. The aim of the work – validation of the technological process of preparation extemporaneous hymoding cream with hyaluronic acid in order to obtain documentary evidence of effective reproduction of the preparation of this medicine. The study design is based on research on the development of dosage form technology, analysis of the impact of critical manufacturing points and evaluation of their impact on the final quality of the cream, taking into account the requirements of GPP. The object of validation is the technological process of preparation hymoding cream with hyaluronic acid. The validation procedure was performed on 3 experimental batches of the medicine. In order to check and optimize the selected technological process of preparation hymoding cream in pharmacies, its validation was carried out. According to the calculated quantities of the components of the studied cream, as well as the identified critical parameters, three batches of the medicine of 100.00 g were developed. On the series of cream, the optimization of technological parameters, testing of critical parameters for all planned stages of production with the definition of eligibility criteria and validation scheme was carried out. Acceptance criteria for all critical parameters were determined during the optimization of technology on batches of the studied medicine. The general risk assessment was carried out at the stage of pharmaceutical development according to the procedure «identification – analysis – risk assessment» to determine the scheme of validation work on batches of the medicine. During the technological process, critical indicators were checked and appropriate forms were filled out. A study on the validation of the technological process of preparation hymoding cream with hyaluronic acid in pharmacies was performed. Documentary evidence of effective reproduction of the manufacture of this medicine has been obtained. A comprehensive analysis of the developed manufacturing process makes it possible to identify critical control points that minimize the occurrence of possible risks in the manufacture of the investigated medicine. According to the results of the research, it can be concluded that the developed cream with hyaluronic acid meets the requirements of State Pharmacopoeia of Ukraine in all quality indicators, which allows to recommend it for use in dermatology.

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