Empirical Design Method for Distribution Transformer Utilization Optimization

2019 ◽  
Vol 34 (4) ◽  
pp. 1803-1813 ◽  
Author(s):  
Michael Bunn ◽  
Bhaba Priyo Das ◽  
Boon-Chong Seet ◽  
Craig Baguley
2021 ◽  
Vol 13 (17) ◽  
pp. 9876
Author(s):  
Hae-Won Park ◽  
Jin-Seok Seo ◽  
Jae-Hoon Lee ◽  
Jin-Hoon Jeong

The design of overlay pavement in Korea, using the American empirical method, does not consider the unique Korean climate, pavement material, and traffic conditions. Therefore, in this study, a mechanistic–empirical design catalog for bonded concrete overlays (BCO) that are appropriate for Korean pavement conditions was developed. First, the thickness of the new pavement slab was determined through the Korean pavement design method, which uses a mechanistic–empirical design program according to the traffic volume of the region with the worst climatic conditions in Korea. Then, finite element analysis models of new jointed concrete and BCO pavements were developed to determine the BCO thickness by adjusting it until the stress–strength ratio of an existing slab of BCO pavement was equal to that of a new concrete pavement slab. By repeating this procedure, a design catalog was developed for the sustainable management of concrete pavement according to the traffic volume, elastic modulus, and thickness of the existing slab after milling. The appropriateness of the BCO thickness predicted by the design catalog was verified by comparing it with that predicted by other design methods.


2021 ◽  
Vol 7 (5) ◽  
pp. 269-281

In this article, the author examines the modular methodology for designing a suit as a way to transform the shape and structure of a suit with minimal expenditure of time and financial resources, which determines the great potential of the modular methodology in the field of suit design. The main task of the study is to provide analytical substantiation of the existing modular design of a suit from lace fabrics and the development of modular design of a suit from lace, lace fabrics and lace-like structures. The adaptation of a modular methodology in designing a suit using lace, lace fabrics and lace-like structures was carried out for the subsequent development and improvement in the design of costumes from lace, which was chosen as the basis of the empirical design method. This allows the research results to be included in the designer’s scientific base for developing a suit from modules using additive technologies. In the article, the author discloses the principles of designing a suit from lacy modular elements by changing the configuration of modules (flat module, volumetric module), which, in turn, are divided into subcategories. The systems for connecting modules into a canvas (in accordance with the geometry of the ornamental mesh, based on the theory of A.V. Shubnikov; according to the principle of unsystematicity and the principle of linear arrangement of modules) and the types of connecting modules in a suit made of lace and lace-like structures (“butt”, “overlay”, “оn the edge”, “figure”). As a result of the study, an algorithm for the method of modular design of costumes from lace, lace fabrics and lace-like structures is proposed, on the basis of which the author's sketches are presented using a modular method of designing costumes from lace fabrics.


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