Nanocomposite Polymeric-Based Coatings: From Mathematical Modeling to Experimental Insights for Adapting Microstructure to High-Tech Requirements

Author(s):  
Andreea Irina Barzic

For high tech enterprise manufacturing subdivisions production optimization challenge has been defined. Mathematical models have been developed. Implementing model algorithms have been researched. A step-by-step mechanism for algorithm implementation based on Johnson’s method is proposed. Developed models have been tested at the enterprises of the innovation-oriented cluster. Model of setting the economically feasible limits of process operations (performed on technological equipment of established manufacturing subdivisions) robotization has been developed


2020 ◽  
Vol 16 (3) ◽  
pp. 400-414
Author(s):  
A.V. Leonov ◽  
A.Yu. Pronin

Subject. The article discusses the methodological apparatus for assessing how many financial resources are needed, and optimize their gradual consumption in high-tech production projects. Results of the projects can be forecasted only as a probable estimate, since there is great uncertainty due to a multitude of random factors. Objectives. The study aims to form the methodological apparatus to assess the amount of financial resources needed under risk and substantiate the reasonable strategy for consuming them in high-tech production projects within a given period of time. The apparatus is to allow for quick adjustments of the financing plan and estimation of project expenditures. Methods. We applied the comprehensive approach to planning and regulating trends in high-tech production costs, methods of economic and mathematical modeling and the probability theory. Results. We reviewed methods used to assess how many financial resources are needed through demand probability distribution laws. Based on them, we devised the interval technique for regulating cost trends so as to substantiate the reasonable strategy for the performance of projects with the desired probability within the given period of time. What distinguishes the interval technique is that it provides the overall vision of the period, during which the project will be performed, and the probability of the advanced prediction of a shortage or excess of financial resources. Conclusions and Relevance. The methodological apparatus proposed herein will facilitate the technological and economic evaluation of various options of high-tech production and choose those ones which ensure the best use of financial resources, quickly regulate the economic dynamism throughout the high-tech production phases in line with a variety of factors, which randomly emerge at certain phases.


2020 ◽  
Vol 1 (7) ◽  
pp. 23-29
Author(s):  
A. A. CHURSIN ◽  
◽  
S. D. PLESHAKOV ◽  
A. D. LIN’KOV ◽  
◽  
...  

One of the most effective design methods to ensure the competitiveness of high-tech products in dynamic economic and geopolitical conditions is design at a given cost. The author's mathematical apparatus is presented in the article, which makes it possible to carry out modeling processes for high-tech products at a given cost. This device can find practical application at high-tech enterprises in Russia.


2019 ◽  
Vol 23 (3) ◽  
pp. 66-71
Author(s):  
O.V. Savenok ◽  
L.V. Povarova ◽  
D.A. Berezovsky

A detailed analysis of the existing methods of cleaning and preparation of produced waters of oil and gas fields has been carried out and the most high-tech methods have been considered in detail. The prospects for the use of produced water as a technological reserve for increasing the efficiency of oil and gas field development are shown. It is noted that the methods of physico-chemical and mathematical modeling can be effectively used to improve the electromembrane technologies. At the same time, many theoretical questions require further, deeper study.


2014 ◽  
Vol 592-594 ◽  
pp. 1267-1271
Author(s):  
Chinnakurli Suryanarayana Ramesh ◽  
Nirupama Mohan ◽  
Vikram K.S. Jain ◽  
Harsha R. Gudi

In recent years, Al6061-carbon fiber composites are gaining wide spread popularity as they find scope in certain high-tech applications such as automobile, aerospace, transport, andprocessing industries. Thesecomposites possess high strength to weight ratio, excellent wear resistance in addition to superior mechanical properties. The experimental method of determining wear phenomenon of the developed composites is an expensive as well as a tedious process.As such engineers and scientists are focusing their attention towards developing mathematical modelsfor determining wear phenomenon. The use of mathematical modeling for prediction of wear phenomenon is an evolving research area. Hence, meager information is available as regards the mathematical model to determine wear rate of composites. Mathematical modeling is slowly gaining impetus in industries in order to assess the life of sliding components and establishing the economic loss incurred due to the wear phenomenon. In the light of the above, Al6061 carbon fiber composites were prepared by liquid metallurgical route and then machined to a standard size of pin.On the pins, sliding wear test was conducted on a pin-on-disc apparatus using C-45 steel disc as per ASTM Standard. Data generated was then used in developing AdaptiveNeuro Fuzzy Inference System (ANFIS). The ANFIS logic was created using the fuzzy logic tool box of Matlab 7.10 Version. For simulating, actual working conditions used to establish the sliding wear behaviour of Al6061-xwt%Carbon fiber composites (x=5, 10) including variable parameters such as Varying load (from 10-60N in step of 10N), Sliding distance, Weight fraction (5-10%) keeping other parameters constant such as track diameter 20 mm, Speed 500rpm and Pin diameter 8 mm were used.The adopted fuzzy model employs hybrid learning techniques for updating the premise and consequent parameter. The predicted values of sliding wear rate of Al6061-xwt% carbon fiber are in close agreement with the experimental results.


2003 ◽  
Vol 29 (2-3) ◽  
pp. 269-299
Author(s):  
Janna C. Merrick

Main Street in Sarasota, Florida. A high-tech medical arts building rises from the east end, the county's historic three-story courthouse is two blocks to the west and sandwiched in between is the First Church of Christ, Scientist. A verse inscribed on the wall behind the pulpit of the church reads: “Divine Love Always Has Met and Always Will Meet Every Human Need.” This is the church where William and Christine Hermanson worshipped. It is just a few steps away from the courthouse where they were convicted of child abuse and third-degree murder for failing to provide conventional medical care for their seven-year-old daughter.This Article is about the intersection of “divine love” and “the best interests of the child.” It is about a pluralistic society where the dominant culture reveres medical science, but where a religious minority shuns and perhaps fears that same medical science. It is also about the struggle among different religious interests to define the legal rights of the citizenry.


2019 ◽  
Vol 50 (4) ◽  
pp. 693-702 ◽  
Author(s):  
Christine Holyfield ◽  
Sydney Brooks ◽  
Allison Schluterman

Purpose Augmentative and alternative communication (AAC) is an intervention approach that can promote communication and language in children with multiple disabilities who are beginning communicators. While a wide range of AAC technologies are available, little is known about the comparative effects of specific technology options. Given that engagement can be low for beginning communicators with multiple disabilities, the current study provides initial information about the comparative effects of 2 AAC technology options—high-tech visual scene displays (VSDs) and low-tech isolated picture symbols—on engagement. Method Three elementary-age beginning communicators with multiple disabilities participated. The study used a single-subject, alternating treatment design with each technology serving as a condition. Participants interacted with their school speech-language pathologists using each of the 2 technologies across 5 sessions in a block randomized order. Results According to visual analysis and nonoverlap of all pairs calculations, all 3 participants demonstrated more engagement with the high-tech VSDs than the low-tech isolated picture symbols as measured by their seconds of gaze toward each technology option. Despite the difference in engagement observed, there was no clear difference across the 2 conditions in engagement toward the communication partner or use of the AAC. Conclusions Clinicians can consider measuring engagement when evaluating AAC technology options for children with multiple disabilities and should consider evaluating high-tech VSDs as 1 technology option for them. Future research must explore the extent to which differences in engagement to particular AAC technologies result in differences in communication and language learning over time as might be expected.


2015 ◽  
Vol 24 (3) ◽  
pp. 106-113 ◽  
Author(s):  
Stephen N. Calculator

Purpose To provide an overview of communication characteristics exhibited by individuals with Angelman Syndrome (AS) and special considerations associated with the design and implementation of augmentative and alternative communication (AAC) programs. Method Results of recent studies exploring individuals' uses of AAC are reviewed, with particular emphasis on factors related to individuals' acceptance and successful uses of AAC systems. Results Not applicable Conclusion Despite their inconsistent access to practices previously found to foster individuals' acceptance of AAC systems, individuals with AS demonstrate the ability to use AAC systems, including high-tech AAC devices, successfully.


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