• Journal of applied mathematics & informatics
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• v.28 no.5_6
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• pp.1101-1116
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• 2010

The aim of this paper is to give some simultaneous approximation properties as well as differential properties, Voronovskaya type theorem, several asymptotic formulae for the partial derivative and the degree of approximation for two dimensional Lupas type operators.

• Journal of the Korean Data and Information Science Society
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• v.17 no.3
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• pp.669-675
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• 2006

When using response surface designs, the experimental trials should be carried out in blocks in case of heterogeneity of conditions. When we use nearly orthogonal blocking, we need evaluate the degree of orthogonal blocking. Graphical methods for evaluating the degree of orthogonal blocking are suggested.

• Communications of the Korean Mathematical Society
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• v.33 no.1
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• pp.197-205
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• 2018

In this note we give a relationship between the degree and coprime-ness of matrix-valued rational functions.

• East Asian mathematical journal
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• v.35 no.3
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• pp.297-303
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• 2019

In this paper, the author introduces the class $L^p$-BV of functions which are of bounded variation in the sense of $L^p$-norm and investigates the degree of convergence for Fourier series of functions belonging to this class.

• East Asian mathematical journal
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• v.37 no.3
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• pp.289-293
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• 2021

In this paper, we investigate the degree of approximation of a function f belonging to the generalized Zygmund class Zyg^ω(α, γ) by Cesaro means of its Fourier series.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.9 no.2
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• pp.122-133
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• 1997

Numerical analysis using finite volume method has been carried out to examine the effect of degree of superheat of LiBr aqueous solution on heat and mass transfer occurred in absorption process. According to the result of this study, it was found that refrigerant vaper was generated at the entrance region of absorber when LiBr aqueous soltion was superheated. As the degree of superheat increases, heat transfer rate increases and vapor absorption rate decreases. The increase in averaged Nusselt and Sherwood numbers could be found as film Reynolds number increases. The larger the degree of superheat, the greater the averaged Nusselt and Sherwood numbers.

• Journal of Families and Better Life
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• v.15 no.1
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• pp.129-146
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• 1997

The purpose of this paper was to discover the importance and degree of satisfaction toward medical service perceived by clients and analize some characteristics and any siginificant difference by deomographic and social variables. In addition the subjects were divided into groups(i. e. satisfied and dissatisfied groups) and tested significant difference between two groups, The results can be summerized as follows: 1,. While the importance of over attributes of medical services percevied by customs was higher the degree of satisfaction was relatively low. 2. According to our analysis the degree of satisfaction toward hospital facilities and staff appeared to have relatively have relatively heavy weights compared to total satisfaction scores. 3. As far customers' quality evaluation about medical service is concerned the importance and degree of satisfaction could not be discriminated by demographic variables except education and income level. 4. The discrepancy of satisfaction s ore between satisfied and dissatisfied group was the highest in hospital facilities compared to other three sectors.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.30 no.5
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• pp.217-222
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• 2018

An analytical method for determining the degree of wave refraction is investigated. The ray tracing method previously used to calculate wave propagating cannot explain the degree of refraction caused by different kinds of conditions. In this study, we suggest the index of refraction degree using the principle that refraction is caused by the difference of phase velocities along the crest line.

• Textile Coloration and Finishing
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• v.15 no.6
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• pp.39-46
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• 2003

The experiments about dyeing concentration, temperature and time were done using yellow, red and purple loess as natural inorganic dyes in order to verify a degree of dyeing, characteristics of color and fastness. The results were as following; 1. As a result of analyzing components of loess, purple loess was much than other loess in quartz component and coarse particles contained. This affected to the degree of dyeing. 2. The stronger dyeing concentration was, the more the degree of dyeing was improved, and yellow loess containing fine particles was the best in the degree of dyeing. 3. When it was dyed with raising up to $100^\circ{C}$ for 10 minutes after stirring for 20 minutes at $60^\circ{C}$, was better than on starting at $40^\circ{C}$ or $80^\circ{C}$ in the degree of dyeing. Also yellow loess was the best in these experiments. 4. Washing fastness of loess was low such as other natural dyes, but dyeing wasn't transferred to other textiles. On the other hand, light fastness of it was very excellent and rubbing fastness was relatively good as 3~3.5.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.22 no.2
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• pp.467-475
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• 1998

The Six Degree-of-Freedom manipulators are generally operated by linear actuators which are hydraulic cylinder, pneumatic cylinder, ball-screw. But these actuators are not adequate to have a wide work-space, and furthermore some of them have a self-locking property. Therfore, we have designed a new manipulator which fully overcomes these demerits. The new manipulating system consists of 6 DC-motors to generate operation forces and 6 position transducers to feedback displacement signals. This paper presents an overview of the design and characteristics of 6 Degree-of-Freedom force feedback manipulators for vitual reality implementation. we can operate Six Degree-of-Freedom manipulator with six motors and six potentiometers.