• KSII Transactions on Internet and Information Systems (TIIS)
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• v.9 no.11
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• pp.4556-4572
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• 2015

Dynamic texture (DT) recognition is a challenging problem in numerous applications. In this study, we propose a new algorithm for DT recognition based on group sparsity structure in conjunction with chaotic feature vector. Bag-of-words model is used to represent each video as a histogram of the chaotic feature vector, which is proposed to capture self-similarity property of the pixel intensity series. The recognition problem is then cast to a group sparsity model, which can be efficiently optimized through alternating direction method of multiplier algorithm. Experimental results show that the proposed method exhibited the best performance among several well-known DT modeling techniques.

• Economic and Environmental Geology
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• v.11 no.2
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• pp.59-68
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• 1978

Of more than 30 varieties of zeolite group minerals, 7 varieties, mordenite, clinoptilolite, natrolite laumontite, stilbite, stellerite and chabazite are identified in Korea, whereas mordenite and clinoptilolite occur in Miocene sediments of small Yonil tertiary basin, east coast of Korea. The basin consists of three separate groups of sediments called Janggi, Gampo and Haseo, which are not correlated stratigraphyically yet. Zeolite occurs alternating with montmorillonite layers in Nuldaeri, Yongdongri and Haseori tuffs of Jahanggi, Gampo and Haseo Groups respectively. Zeolite was formed by diagenesis. of acidic volcanic tuffs.

• Journal of International Academy of Physical Therapy Research
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• v.2 no.2
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• pp.339-343
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• 2011

The purpose of this study is to see the effect of functional electrical stimulation on forced vital capacity and alternating motion rate in children with spastic cerebral palsy. This study divided 20 children with spastic cerebral palsy into two groups; functional electrical stimulation treatment group and control group. Functional electrical stimulation treatment group had 20min per day treatment three times a week for four weeks and the control group did not have any treatment. Before and after intervention, this study measured forced vital capacity and alternate motion rate(/peo/,/teo/) for all children. Forced vital capacity showed statistically significant increase for the group with functional electrical stimulation(p<.05) while the control group did not show any significant increase(p>.05). Alternate motion rate showed statistically significant increase for the group with functional electrical stimulation(p<.05) while the control group did not show any significant increase(p>.05). This result shows that functional electrical stimulation affected the ability of the children with spastic cerebral palsy who have decreased breathing and phonation capability.

• Journal of Electrical Engineering and Technology
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• v.13 no.6
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• pp.2385-2391
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• 2018

This paper is devoted to detecting decomposition characteristics of Iodotrifluoromethane ($CF_3I$) under alternating current (AC) discharges or load current interruptions. The decomposition products are measured utilizing chromatography-mass spectroscopy. It is found that less than 1% $CF_3I$ gas decomposed after several interruptions at load current of 200 A or hundred times of AC discharges. However, under interruptions at a current of 400 A, more than 95% $CF_3I$ gas decomposed into carbon tetrafluoride ($CF_4$) and hexafluoroethane ($C_2F_6$). The equilibrium compositions based on Gibbs free energy minimization of $CF_3I$ was calculated to explain the decomposition mechanism.

• Asian-Australasian Journal of Animal Sciences
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• v.15 no.9
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• pp.1364-1370
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• 2002

The objective of this study was to examine the effect of compensatory growth nutritional regimen on mammary gland growth and lactation. One hundred twenty-two Sprague Dawley female rats (35 days of age) were randomly assigned to either a control or a stair-step compensatory nutrition (SSCN) feeding regimen or an alternating 2-2-3-3-week schedule beginning with 40% energy restriction for 2 weeks followed by re-alimentation (control diet) for 2 weeks. Pup weight gain and milk yield were improved 8% and 8 to 15%, respectively, by the SSCN regimen. The gene expression of $\beta$-casein was 2.3-fold greater in the SSCN group than in the control group during early lactation, but they were greater at all stages of the second lactation. The gene expression of insulin-like growth factor-I was 40% lower in the SSCN group than in the control group during early lactation of the second lactation, but during late lactation it was 80% greater than in the control group. The concentration of serum corticosterone tended to be higher in the SSCN group during the late stage of the first lactation. These results suggest that the stair-step compensatory nutrition regimen improves lactation performance and persistency by modulation of cell differentiation and apoptotic cell death.

• PNF and Movement
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• v.16 no.3
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• pp.475-484
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• 2018

Purpose: The aim of the present study was to investigate the effect of a PNF orofacial exercise program on diadochokinesis in subacute stroke patients with dysarthria. Methods: Thirteen subacute stroke inpatients with dysarthria were recruited for the study. All participants were randomly assigned to two groups: an experimental group (n=7) and a control group (n=6). The experimental group performed a PNF orofacial exercise program, and the control group carried out an orofacial self-exercise. Both groups received the treatments 30 minutes per day, 5 days per week, for 4 weeks. The outcome measures were assessed before and after the intervention, including an alternating motion rate (AMR) and sequential motion rate for diadochokinesis. Results: After the intervention, both groups showed significant improvement in diadochokinesis (p<0.05). In the change values for both groups, the experimental group showed a more significant improvement than the control group did in /pə/ of AMR (p<0.05). Conclusion: These findings suggest that PNF orofacial exercise programs may have positive effects on the improvement of diadochokinesis in subacute stroke patients with dysarthria.

• Macromolecular Research
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• v.9 no.2
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• pp.116-121
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• 2001

A series of poly(1,4-phenylenevinylene-alt-3-alkyl-2,5-thienylenevinylene)s (alkyl = hexyl [PPV-alt-6-TV] and octyl (PPV-alt-8-TV] group) have been synthesized by the Heck coupling reaction. These polymers were characterized using $^1$H-NMR, FT-IR spectroscopy, and thermogravimetric analysis (TCA). They are solvent processible and have obviously copolymeric structure. The photophysical properties of the polymers were investigated using UV-visible and steady-state photoluminescence(PL) spectroscopy. We studied the change of light-emitting properties by incorporating the thiophene group into the PPV polymer backbone using alternating copolymer system. The properties of two synthesized polymers are very similar, but they exhibited apparent changes of light-emitting properties compared with other PPV backbone based polymers. The broad absorption bands from 350 to 570 nm are due to $\pi$-$\pi$* transitions of the polyconjugated systems. The absorption maxima of the two polymers were found at about 452 and 448 nm for PPV-alt-6-TV and PPV-alt-8-TV, respectively. The copolymers showed broad PL spectra between 550 and 700 nm without vibronic bands and PL emission maxima of PPV-alt-6-TV and PPV-alt-8-TV are about 620 and 605 nm, respectively. The copolymers exhibited the red emission (PPValt-6-TV), but more red shifted emissions are needed to obtain real red color.

• Journal of Korea Association of Health Promotion
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• v.3 no.2
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• pp.121-136
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• 2005

Background/Aims The liver funtion tests(LFTs), such as aspartate aminotransferase(AST), alanine amino-transferase(ALT), r -glutamyl transferase( r -GT), have been widely used for screening tests but their low positive predictive value can cause many false positive results. To evaluate the clinical usefulness of these tests, we analyzed serial LFT results of single factory workers and compared the risk factor's in groups divided by the serial LFT results. Methods From June 2001 to October 2001, 1223 consecutive healthy workers in a single factory were enrolled and questionnaire, LFT and liver ultrasonography were performed. Previous LFT results were collected from Annual Health Examination Survey. According to the abnormalities in serial LFT, participants were classified into three groups (abnormal-in-both, alternating normal-in-both) and the risk factors were compared among these groups using multiple logistic regression Results The prevalence of LFT abnormality in a single test was 16.8% but, in serial LFT, only 5% of participants showed consistent abnormality. The risk factors for abnormal-in-both group, compared with alternating group, were liver ultrasonography abnormality such as fatty liver(odds ratio, 2.2; p=0.026) and heavy alcohol intake (more than 210g/week) (odds ratio, 7.2;P=0.064). HBsAg was not significant risk factor for any of the three groups. ConclusionIn factory workers with serial LFT abnormality, alcoholic liver disease could be the principal cause of abnormal LFT. Even if HBsAg were positive in patients with abnormal LFT, there is a possibility of another causes for LFT abnormalities such as alcoholic liver disease and nonalcoholic steatosis or steatohepatitis

• Korean Journal of Health Education and Promotion
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• v.31 no.3
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• pp.63-72
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• 2014

Objectives: This is an experimental study that attempts to define the effect that self-aromatherapy massage has on depression and satisfaction with life of depressed college students. Methods: Of the total 41 participants, 21 were designated as the experimental group and 20 as the control group. The participants were subject to massages; lavender, sweet orange, mandarin, rosewood, and bergamot aromas diluted to the concentration of 2% in jojoba oil, the carrier oil, were used on the experimental group, and only jojoba oil was used on the control group. Self-aromatherapy massages were conducted for 10 minutes per session, 3 times a week in alternating days, in a period of 2 weeks, and the depression points and satisfaction with life scale were measured before and after massages. Results: This study revealed that there was a statistically significant decrease of depression points in the experimental group, and that there was no significant difference of life satisfaction in both groups. Conclusions: Thus, it is thought self-aromatherapy massages could be used as a practical method of self-mediation that alleviates depression in depressed college students.

• Bulletin of the Korean Mathematical Society
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• v.57 no.1
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• pp.207-218
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• 2020

Some modular representations of reflection groups related to Weyl groups are considered. The rational cohomology of the classifying space of a compact connected Lie group G with a maximal torus T is expressed as the ring of invariants, H*(BG; ℚ) ≅ H*(BT; ℚ)^W(G), which is a polynomial ring. If such Lie groups are locally isomorphic, the rational representations of their Weyl groups are equivalent. However, the integral representations need not be equivalent. Under the mod p reductions, we consider the structure of the rings, particularly for the Weyl group of symplectic groups Sp(n) and for the alternating groups A_n as the subgroup of W(SU(n)). We will ask if such rings of invariants are polynomial rings, and if each of them can be realized as the mod p cohomology of a space. For n = 3, 4, the rings under a conjugate of W(Sp(n)) are shown to be polynomial, and for n = 6, 8, they are non-polynomial. The structures of H*(BT^n-1; 𝔽_p)^A_n will be also discussed for n = 3, 4.