• International Journal of Control, Automation, and Systems
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• v.6 no.4
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• pp.515-525
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• 2008

In this paper, the problem of delay-dependent stabilization for singular systems with multiple internal and external incommensurate constant point delays is investigated. The condition when a singular system subject to point delays is regular independent of time delays is given and it can be easily test with numerical or algebraic methods. Based on Lyapunov-Krasovskii functional approach and the descriptor integral-inequality lemma, a sufficient condition for delay-dependent stability is obtained. The main idea is to design multiple memoryless state feedback control laws such that the resulting closed-loop system is regular independent of time delays, impulse free, and asymptotically stable via solving a strict linear matrix inequality (LMI) problem. An explicit expression for the desired memoryless state feedback control laws is also given. Finally, a numerical example illustrates the effectiveness and the availability for the proposed method.

• Journal of the Korean Institute of Telematics and Electronics
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• v.22 no.3
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• pp.31-42
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• 1985

Thig paper used two feedback sensors, that is, potentiometer and tachometer in order to control DC motor. Also, the state feedback and kalman regular type in the linear system or the state feedback and on-off relay type in the non-linear system are used as control meth-ods for optimal control values. This compared and analyzed the control estimate of tracking angles by the estimate of three branches of methods of position and speed measured, position and speed by PD and position, speed and covariance by an observer.

• Research in Community and Public Health Nursing
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• v.21 no.4
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• pp.409-418
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• 2010

Purpose: This study aimed to estimate the effects of a regular walking exercise program on metabolic syndrome, cardiovascular risk factors, and depressive symptoms among the elderly with diabetic mellitus (DM) based on the Theory of Reasoned Action (TRA). Methods: This study has randomized and stratified experimental design with experimental and control groups. We developed a regular walking exercise program suitable for the elderly with DM based on the guidance of AAHPERD. The experimental group participated in the regular walking exercise program, which contains walking exercise 3 times a week and 50 minutes each time for 3 months and education on controlling diet and preventing complications once a week and 20 minutes each time for 4 weeks. Post-test was conducted after 3 months to estimate metabolic syndrome, cardiovascular risk factors, and depressive symptoms. Results: The regular walking exercise program was effective for decreasing the waist size, the level of fasting blood glucose (FBG) and triglyceride (TG), cardiovascular risk factors and the severity of depressive symptoms among the elderly with DM. Conclusion: The incidence of complications would be decreased by applying a regular walking exercise program.

• Honam Mathematical Journal
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• v.36 no.3
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• pp.569-596
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• 2014

In several applied disciplines like control engineering, computer sciences, error-correcting codes and fuzzy automata theory, the use of fuzzied algebraic structures especially ordered semi-groups and their fuzzy subsystems play a remarkable role. In this paper, we introduce the notion of (${\in},{\in}{\vee}\bar{q}_k$)-fuzzy subsystems of ordered semigroups namely (${\in},{\in}{\vee}\bar{q}_k$)-fuzzy generalized bi-ideals of ordered semigroups. The important milestone of the present paper is to link ordinary generalized bi-ideals and (${\in},{\in}{\vee}\bar{q}_k$)-fuzzy generalized bi-ideals. Moreover, different classes of ordered semi-groups such as regular and left weakly regular ordered semigroups are characterized by the properties of this new notion. Finally, the upper part of a (${\in},{\in}{\vee}\bar{q}_k$)-fuzzy generalized bi-ideal is defined and some characterizations are discussed.

• The Journal of Korean Obstetrics and Gynecology
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• v.30 no.4
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• pp.77-88
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• 2017

Objectives: The purpose of this study is to analyze the characteristics of the pulse energy in women with PCOS (Polycystic ovary syndrome) compared with women who have a regular menstrual cycle. Methods: We analyzed the values of pulse energy on 20 patients with PCOS as an experimental group and 40 patients with regular menstrual cycle as a control group. Control group was divided into 20 women with follicular phase and 20 women with luteal phase respectively. Statistical analysis was performed using SPSS/Win 18.0, one way ANOVA and Tukey HSD. Results: The results were as follows. 1. The mean pulse energy of the Right Chon was significantly increased compared with those of the Left Kwan and the Right Kwan among PCOS group. 2. There were no statistically significant pulse energy among control groups. Conclusions: The pulse energy of Lung is bigger than that of Spleen and Liver in PCOS patients compared with women who have a regular menstrual cycle.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.11
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• pp.4197-4206
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• 2010

The purpose of this study was to examine the effects of regular physical activity program on young children's basic motor skills and daily stress. The outdoor physical activity program was conducted with 40 participants who were divided into two groups(experimental group and control group) for 10 weeks twice a week. Results of the study were as following. The outdoor physical activity program improved young children's basic motor skills in the experiment group compared to the control group. Also it had positive effects on the reduction of daily stress in the experimental group compared to the control group. This result suggests that the physical activity program have positive effects on the development of young children's basic motor skills and the reduction of daily stress.

• Journal of the Korean Society of Clothing and Textiles
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• v.39 no.1
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• pp.15-29
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• 2015

This study analyzes the mechanism that explains how various service quality factors are related to consumer satisfaction when plus-size and regular-size women are engaged in fashion shopping. We constructed and tested service quality- perceived value-satisfaction model with size as a control variable. We defined plus-size women as those with a BMI over 25 and regular-size women below 25. Data were collected during April and May, 2012 and responses from 189 plus-size women and 246 regular-size women were used in the final analysis. The results are as follows. First, among service quality factors, attention was significantly related to perceived service value for both plus-size women and regular-size women. However, store facilities were significantly related to perceived service value for only plus-size women and kindness was significantly related to perceived service value only in the case of regular-size women. Second, perceived service value was significantly related to product satisfaction and service satisfaction for plus-size women and regular- size women. However a moderating effect was found between the groups where the influences of perceived service value on product satisfaction and service satisfaction in the case of plus-size women were greater than regular-size women. Third, in the case of regular-size women, service satisfaction was positively affected by product satisfaction. However, the relationship between them was not found in the case of plus-size women.

• Smart Structures and Systems
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• v.16 no.4
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• pp.623-640
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• 2015

This paper presents techniques to harvest higher voltage from piezoelectric cantilever energy harvester by structural alteration. Three different energy harvesting structures are considered namely, stepped cantilever beam, stepped cantilever beam with rectangular and trapezoidal cavity. The analytical model of three energy harvesting structures are developed using Euler-Bernoulli beam theory. The thickness, position of the rectangular cavity and the taper angle of the trapezoidal cavity is found to shift the neutral axis away from the surface of the piezoelectric element which in turn increases the generated voltage. The performance of the energy harvesters is evaluated experimentally and is compared with regular piezoelectric cantilever energy harvester. The analytical and experimental investigations reveal that, the proposed energy harvesting structures generate higher output voltage as compared to the regular piezoelectric cantilever energy harvesting structure. This work suggests that through simple structural modifications higher energy can be harvested from the widely reported piezoelectric cantilever energy harvester.

• Asian-Australasian Journal of Animal Sciences
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• v.21 no.1
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• pp.131-137
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• 2008

The objective of the present study was to compare the chemical and sensory properties of regular cream cheese (control) and cholesterol-reduced cream cheese manufactured using crosslinked ${\beta}$-cyclodextrin (${\beta}$-CD) or powdered ${\beta}$-CD. Crosslinked ${\beta}$-CD was made using adipic acid. The composition of cream cheese treated by the crosslinked ${\beta}$-CD was similar to the regular cream cheese. Approximately 91% of cholesterol-reduction was observed in the cheeses that were treated using ${\beta}$-CD, which was not significantly different between powdered vs. crosslinked ${\beta}$-CD treatments. Total amount of short-chain free fatty acids was significantly lower in both ${\beta}$-CD-treated cheeses than in the control cheese throughout the storage. The cheeses made by ${\beta}$-CD-treated cream produced much lower amounts of individual free amino acids than the control in all periods. Most rheological characteristics, except cohesiveness, decreased dramatically in the control compared with the cholesterol-reduced cream cheeses. In sensory attributes, both wateryness and spreadability in ${\beta}$-CD-treated cheeses were significantly higher than in the control during 8 wk storage. Sensory scores for sourness increased significantly in the control from 4 to 8 wk storage, however, those in the cream cheese made by crosslinked-${\beta}$-CD treated cream increased slowly during 8 wk storage, which was shown in the control during a 4 wk period. Therefore, the present study showed the possibility of cholesterol-reduced cream cheese manufacture.

• Bulletin of the Korean Mathematical Society
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• v.59 no.3
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• pp.617-642
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• 2022

For positive integers n and d with d < n, an n × n array A based on 𝒳 = {0, 1, …, nd} is called a sparse anti-magic square of order n with density d, denoted by SAMS(n, d), if each non-zero element of X occurs exactly once in A, and its row-sums, column-sums and two main diagonal-sums constitute a set of 2n + 2 consecutive integers. An SAMS(n, d) is called regular if there are exactly d non-zero elements in each row, each column and each main diagonal. In this paper, we investigate the existence of regular sparse anti-magic squares of order n ≡ 1, 5 (mod 6), and prove that there exists a regular SAMS(n, d) for any n ≥ 5, n ≡ 1, 5 (mod 6) and d with 2 ≤ d ≤ n - 1.