Studies on the Determination of Cutting Regime Optimal Parameters for Drilling Operation – Comparative Analysis between the Results Obtained by Using Analytical Method and Automated Method of Calculation

2015 ◽  
Vol 809-810 ◽  
pp. 117-122
Author(s):  
Ion Nae ◽  
Gabriela Cristina Ionescu ◽  
Octavian Narcis Ionescu

From practical experience is well known that the establishment of the right values for the cutting regime parameters (without taking into consideration the cutting schematics) is requiring a large volume of work, thorough calculations and accurate input information regarding the process to be conducted. The high competition from the market is generating increased requirements concerning the productivity of processes, quality of the products as well as the production costs. There it is a strong correlation between these issues and the accurate determination of the cutting regime parameters. This article presents the methods of calculation for the cutting regime parameters for drilling process by using analytical method (classical) and automated method (by using specialized software packages) and the analysis of the results obtained with the goal of establishing which of them are providing the best results in the shortest period of time.

Author(s):  
Чуйко М.М. ◽  
Завальський В.

High quality of the soldering process can be achieved with the right choice of the necessary soldering materials. Since wetting determines the further nature of the connection between the solder and the main soldering material, the contact angle  measurement  is the basis for quality control of soldering materials, provided that the basic requirements of the technological process. The determination of the contact angle value is carried out by the indirect method of the sessile drop, by measuring the basic parameters of the drop using infrared transducer. A smaller value of the contact angle corresponds to a better interaction of materials, and hence a better electrical contact


1968 ◽  
Vol 12 ◽  
pp. 546-562
Author(s):  
R. Tertian

AbstractThe double dilution method has many important advantages. For any element to be determined, let us say A, It enables us to control or calculate the matrix factor (sum of the absorption end enhancement effects) for the sample being Investigated towards A radiation, and it furnishes corrected Intensities which are strictly proportional to A concentration. Thus the results are exact, whatever the general composition of the sample, their accuracy depending only on the quality of measurement and preparation. Another major practical advantage is that the method does not require systematic calibration but only a few permanent standards consisting of a pure compound or of an accurately known sample.The procedure has been tested successfully for accurate determination of rare earth elements using, for solid materials such as ores and oxide mixtures, the borax fusion technique. It also can be readily applied to liquids. All the rare earth elements can be titrated by that method, as well as yttrium, thorium and, if necessary, all the elements relevant to X-ray fluorescence analysis. The concentration range considered for solids is of one comprised between 0.5 and 100 % and, with a lesser accuracy, between 0.1 and 0-5 % Examples are given relative to the analysis of various ores. Finally it rcust be pointed out that the method is universal and applies to the analysis of every solid, especially ores, provided that they can be converted to solid or liquid solutions. It appears that most industrial analyses can be worked on In this way.


2008 ◽  
Vol 91 (1) ◽  
pp. 92-97 ◽  
Author(s):  
Brent Rozema ◽  
Barbara Mitchell ◽  
Doug Winters ◽  
Andrew Kohn ◽  
Darryl Sullivan ◽  
...  

Abstract The increased focus on the accuracy of Trans fatty acid data generated using current methodologies has resulted in research initiatives to optimize the quality of these assays. In this study, scientists combined the established methodology from AOAC 996.06 and the American Oil Chemists Society method Ce 1h-05, as well as other independent research. As a result, method modifications are proposed that could allow for a more accurate determination of Trans fat than the current AOAC 996.06 method. Validation data from this study are presented. The authors encourage peer review and offer to facilitate a collaborative validation to update AOAC 996.06.


2018 ◽  
Vol 3 (4) ◽  
Author(s):  
Arie Saputra

Gayo coffee scattered in the mountains and being in two districts of the central highlands and Central Aceh district has become the center of world attention. Gayo Arabica coffee has a unique manifold and the added value created by the mountainous nature Gayo. This factor makes Gayo Arabica coffee has the added value that is not replaceable by other similar commodities. The success of the stakeholders Gayo coffee obtain certification which is organic, fairtrade, coffee practice and Geographic indication that can be a proof of the worldwide recognition of the quality and added value of this coffee. The average price of the last on the coffee harvest season in March 2012 ranged between Rp 100.000,- until Rp 110.000,- in each Kg grean bean on exporter level. Determination of clusters of farmers the right so that the quality and price of supplies could be predicted well by the cooperative as exporters are very important. These routes and ketelusuran origin coffee blend in one location with other location mebuat coffee quality decreases. Mapping the supply of unclear origin uniformity of the quality of the coffee making is difficult to determine. This effect on selling prices decreased overall coffee farmers to the detriment of farmers with good quality coffee. The good name of the cooperative from the viewpoint of importers deteriorate as evidenced by a decrease in the purchase price of the importer in the contract.The sampling process quality coffee supply also becomes difficult because unhomogenity supply region. Supply region is crucial to the quality of the coffee due influenced the position and height of the land. Thus, this research is expected to help formulate clusters of farmers so that the quality and price of coffee could be improved both in terms of farmers and exporters. The last hope of course the welfare of farmers and other stakeholders could be better.Keywords: Data Mining, Optimization, Gayo Arabica Coffee, Supply Chain


2012 ◽  
Vol 30 (34_suppl) ◽  
pp. 150-150
Author(s):  
Carolyn Bodnar ◽  
L. Clark Paramore ◽  
Kevin B. Knopf

150 Background: Anti-angiogenesis (AA) drugs (e.g., bevacizumab) are expensive and their clinical benefit in metastatic breast cancer (MBC) has been challenged. Healthcare reform and financial pressures prioritize programs which improve patient quality of care and reduce costs of unnecessary care. Angiogenesis-specific imaging tests (A-IT) under development have potential to offer earlier, accurate determination of response. For A-IT-identified responders, AA treatment would be continued. For patients identified as non-responders, futile AA treatment and associated toxicities can be avoided and alternative therapies initiated. Methods: A decision-tree model was developed to estimate the impact of A-IT from determination of AA therapy eligibility through to disease progression. Key decision nodes were presence/absence of A-IT (assessing change in biomarker expression across 2 PET/CT scans: at AA eligibility, then after one cycle of AA), A-IT sensitivity/specificity (SE/SP) and clinician adherence to test results (tied to belief that results are valid enough to stop AA therapy). Key model inputs (and base case values): 1) median time to progression (TTP) for current MBC patients on AA therapies (9.5 months); 2) median TTP for A-IT identified responders (13 months); 3) costs of bevacizumab, one cycle ($5,200); 4) percentage of AA patients with hemorrhage (4%); 5) costs of hemorrhaging, per event ($14,694); 6) per patient costs for A-IT ($6,000); 7) estimated SE/SP of A-IT – 95%/75%; and 8) clinician adherence to test results (75%). Results: Based on a cohort of 100 MBC patients, use of A-IT results in 29 patients avoiding futile AA therapy with a saving of $460,000, versus a scenario where A-IT was not used. One-way threshold sensitivity analysis shows A-IT is cost-saving if SP >62% or when clinician adherence is ≥63%; results are not sensitive to AA hemorrhage rate. Conclusions: Use of A-IT could improve quality of care by optimizing AA therapy, i.e., by identifying responders who will experience survival benefit and non-responders who can avoid futile therapy and toxicity risks. Significant cost savings may be possible as a result of early determination of response to AA drugs.


2020 ◽  
Vol 13 (1) ◽  
pp. 1-9
Author(s):  
Sri Wahyuning Wahyuning ◽  
Nofi Khayati

Accounting Information System is a system that provides an information technology-based accounting process. Determination of the cost of production in a company requires the right method, because the cost of production is one of the factors that can influence the determination of the selling price. The cost of production is also used to determine the magnitude of the profits obtained by the company.Manufacturing company which is a company engaged in the process of raw materials into finished goods, requires basic materials that are used as the main ingredients in the production process.This study aims to determine how the application of the Job Order Costing method is a method of collecting production costs to determine the cost of production at the company on the basis of orders. The method used in this study uses a research and development (R&D) model, which is the method used to produce certain products, and test the effectiveness of the product. In this study using the PHP programming language and MySQL for the database


2020 ◽  
Vol 1 (1) ◽  
pp. 36-42
Author(s):  
Ivan Martynenko

Object. The article covers the issues of diagnostics of academic success of students of the Faculty of Arts in conducting and choral disciplines, in particular in the discipline of «Choral Arrangement». Methods. The study used a set of methods: analysis, synthesis, generalization, classification, comparative, prognostic, which highlighted the problems of diagnosing the success of students of arts faculties in conducting and choral disciplines (including choral arrangement), means and forms of its implementation. Results. Diagnostics is an integral part of the educational process. Thanks to it, the quality of achievement of the set purpose is defined. Without diagnostic, it is impossible to effectively manage the didactic process. The need to consider the problems of organization, structure and content of diagnostics is due to the radical changes taking place in the national higher school: introduction into practice of state standards and credit-modular system of organization of educational process. The author defines the concept of «diagnostics» as a system of accurate determination of the results of the didactic process, highlights the main types of control in higher education. The study analyzes the main forms, methods and pedagogical conditions for the quality of the diagnosis of academic success of students of the Art Faculty in conducting and choral disciplines, especially in «Choral Arrangement». Conclusions. The author describes the methods of control as ways by which the effectiveness of educational and cognitive students` activities and teachers` pedagogical work is determined. The study identifies the place of educational creative discipline «Choral Arrangement» in the system of training a professional music teacher of the school, who has practical skills in translating choral, solo, folk works for different choirs, is familiar with the basic theoretical principles, has principles and means of translating musical works for choirs. a certain composition and level of performance.


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