• The Journal of the Acoustical Society of Korea
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• v.43 no.2
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• pp.152-161
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• 2024

Although hearing loss in the elderly is one of the common symptoms of aging, as the aging population continues to grow, policies such as home care and welfare housing for the elderly are implemented with a focus on mobility, often overlooking the issue of hearing loss in the elderly. In this study, our aim is to enhance the quality of life for the elderly by improving the auditory environment within residential spaces, which plays a pivotal role in determining their overall well-being. We have proposed a technique that focuses on reducing reverberation, minimizing noise levels, and enhancing sound quality to improve the listening environment for the elderly, and we have verified its effectiveness. Building upon this, we have developed an acoustic design model for residential facilities catering to elderly home care.

• Nonlinear Functional Analysis and Applications
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• v.29 no.1
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• pp.131-164
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• 2024

In this research, we study a modified relaxed Tseng method with a single projection approach for solving common solution to a fixed point problem involving finite family of τ-demimetric operators and a quasi-monotone variational inequalities in real Hilbert spaces with alternating inertial extrapolation steps and adaptive non-monotonic step sizes. Under some appropriate conditions that are imposed on the parameters, the weak and linear convergence results of the proposed iterative scheme are established. Furthermore, we present some numerical examples and application of our proposed methods in comparison with other existing iterative methods. In order to show the practical applicability of our method to real word problems, we show that our algorithm has better restoration efficiency than many well known methods in image restoration problem. Our proposed iterative method generalizes and extends many existing methods in the literature.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.22 no.4
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• pp.420-429
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• 2000

Oral & maxillofacial infections are most commonly odontogenic in origin. Although such infections are usually self-limiting, they may occasionally spread deeply into fascial spaces or planes far from the initial site of involvement. If early diagnosis and appropriate therapy is delayed, complications such as mediastinal extension, retropharyngeal spread and airway obstruction could happen to the patients. For the study of the microbiology, we have retrospectively analysed the oral & maxillofacial infected patients in the Dept. of Oral & Maxillofacial Surgery. In-Ha University Hospital from 1997 September to 2000 April. The results were as follows 1. The male patients were more common than female, with male 61.9% and female 38.1%. 2. Dental originated infections were most common cause with the incidence of 62%. 3. Most common fascial space involved was buccal space 42cases(37.2%) followed by submandibular space 13cases(11.5%), infraorbital space 13cases(11.5%), masseteric space 11cases(9.7%), periapical abscess 11cases(9.7%). 4. The causative organisms isolated from the pus culture were Gram Positive Bacterial species, which were 46cases(31.9%) of Streptococcus viridans, 16cases(8.6%) of ${\alpha}$ and ${\beta}-hemolytic$ streptococcus, 4cases(3.1%) of Strep.-group D non enterococci, 7cases(5.1%) of Staphylococcus Coa. neg., 5cases(3.9%) of Staphylococcus aureus, 3cases(2.3%) of Enterococcus faecalis, 1case(0.8%) of Bacillus species, 1case(0.8%) of Peptostreptococcus, 1case(0.8%) of Clostridium and Gram negative bacterial species, which were 4cases(3.1%) of Acinetobacter baumannii, 2cases(1.6%) of Pseudomonas aeruginosa, 2cases(1.6%) of Burkholderia cepacia, 1case(0.8%) of Neisseria species, 1case(0.8%) of Klebsiella pneumoniae, 1case(0.8%) of Klebsiella oxytoca, 1case(0.8%) of Escherichia coli. 5. In drug sensitivity test, high resistant tendency was found in Penicillin system(Penicillin G 83.3%, Ampicillin 60%) and Aminoglycosides (Gentamycin 50%, Tobramycin 45.5%), but tertiary Cephalosporin system(Cefoperazone 9.1%, Ceftazidime 18.2%), and glycopeptides system (Teicoplanin 0%, Vancomycin 0%) showed lower resistancy.

• Journal of the Korean Applied Science and Technology
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• v.39 no.2
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• pp.246-260
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• 2022

This study was conducted to analyze the creativity education contents of dance activities in physical education textbooks for the 3rd and 4th grades of elementary school. For this purpose, 16 types of textbooks and auxiliary data for physical education in the 3rd and 4th grades of elementary school were collected and analyzed using the creative education content analysis frame of the physical education textbook based on the 4P model. In order to secure the integrity of the research, expert consultation was operated. The results of this study are as follows. First, from the viewpoint of creative person, 'inquiry' was the most common in creative mind, and the rest of the elements appeared relatively evenly. As for the subject of activity, 'individual' and 'colleague (team)' showed similar frequencies. Second, from the viewpoint of the creative process, all activity areas appeared as 'learning', and most of the elements of the activity purpose appeared evenly, and the creative process was explored. Third, from the viewpoint of creative output, physical activity performance was the most common activity method, and two or three activity methods were used together. In the creativity factor, all factors appeared evenly, and sensitivity and sophistication were the most common with 4 factors. Fourth, from the viewpoint of the creative environment, most of the activity spaces were no restrictions, and the activity media consisted of many educational contents using the body. Through this study, it was requested that creativity education in dance activities should be expanded quantitatively and intensified in quality, and the necessity of spreading creativity education contents of dance activities to other areas was explored.

• Archives of design research
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• v.18 no.4 s.62
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• pp.73-84
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• 2005

The purpose of this study is to analyze the interior color characteristics of elderly housing facilities in Korea. For this purpose, a filed survey was conducted between October 16 and October 25, 2003, visiting 10 elderly housing facilities. A three step analysis of the facilities was involved. First, floor, walls, ceiling, base boards and doors in common spaces were examined for the color scheme using the 'Pantone for Fashion and Home Color Guide' for each room. Measured Pantone numbers were converted to RGB color using 'Chooser 3.0 of Pantone, Inc.' Finally, the conversions were recorded as Munsell numbers. The results are as follows. First, the brightness used in elderly housing facilities ranges from high value to low value while the chroma ranges from the middle chroma to low chroma. The warm colors of Y and YR are mainly used, followed by GY and R. Second, the colors used for elderly housing facilities are found inter-related. For example, the main color in the lobby is also used for corridor and used again in dining room, library, and treatment room. Third, in terms of the color scheme, it is best help the elderly, who generally have lower recognition capability, by highlighting the distinction and attention by using the dearly distinctive accent color for the transition space, edge of the hallways or in front of the door to the units and having different color for each floor. But in most facilities except one or two, this consideration is ignored. Fourth, there is difference in color selection between elderly housing with low and high rental value. Only one facility, the most high priced one, has aggressive color arrangement, and the others show very little consideration of the elderly's needs.

• Journal of the Korean Institute of Landscape Architecture
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• v.39 no.4
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• pp.83-97
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• 2011

In this study, space allocation with an assessment system for improving the function of the ecological use and function of each space was undertaken to suggest appropriate goals and directions. Ogeum Park, used as the study site, is a stronghold green zone located in the fan-shaped area of the Songpa-gu green zone on a 22ha area site. The assessment system for this study consisted of a total of 3 steps: Step 1 includes the division of the spatial block, Step 2 assesses the proper functioning of each spatial block, while Step 3 includes space allocation and presents improvements for function by space. This study performed a basin analysis with the consideration that Ogeum Park is a forest area and divided the site into a total of 8 areas according to how the sections of land are used. The function of wildlife habitat included an analysis of plant ecology(vegetation type, vegetation layer, potential vegetation), animal ecology(wild birds), and waterways. The function of leisure and use included an analysis of gradients, noise, paths, status of use, and status of facilities. The evaluation of the function of habitat sorted items into native vegetation, vegetation diversification, vegetation potential, animal diversification and potential of animal habitats. The results of grading the evaluation scores by space in the function of habitat showed that the Areas IV and VII, which were 90% of the maximum point, were Grade A, Areas II and V were Grade B at 70% and Area I and VI were Grade C at 50%. Areas III and VIII, which were not found to be beyond the standard of 50%, were excluded. The evaluation of the functions of leisure and use classified items into use potential, use preference, use concentration, use diversification and use convenience. The results of the graded evaluation scores by space in use function, showed areas V and VI as Grade A, or 90% of the maximum score. Grade B, 70% of the maximum score, was given to Areas I and VII. Grade C, 50% of the maximum score, included Areas II, IV and VIII. Area III, graded lower the standard of 50%, was excluded. The study evaluated areas according to a common standard, classified spaces by proper functions into ecological spaces, environmentally-friendly use spaces and use spaces according to the standard of spatial distribution on the basis of the above results through a synthesis of grades of habitat function, leisure function and use. This offers ideas for the improvement of wildlife habitat and environment-friendly use functions by space.

• Korean Journal of Heritage: History & Science
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• v.53 no.1
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• pp.184-203
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• 2020

The Confucian ruling class of the Joseon Dynasty regarded Buddhist rituals as "dangerous festivals." However, these Buddhist ceremonies facilitated transitions between phases of life from birth till death and strengthened communal unity through their joint practice of the rites. Ritual spaces were decorated with various utensils and objects that transformed them into wondrous arenas. Of these ornaments, Buddhist paintings served as the most effective visual medium for educating the common people. As an example, a painting of the Ten Kings of the Underworld (siwangdo) could be hung as a means to illustrate the Buddhist view of the afterlife, embedded in images not only inside a Buddhist temple hall, but in any space where a Buddhist ritual was being held. Demand for Buddhist paintings rose considerably with their use in ritual spaces. Nectar ritual paintings (gamnodo), including scenes of appeasement rites for the souls of the deceased, emphasized depictions of royal family members and their royal relatives. In Chinese paintings of the water and land ceremony (suryukjae), these figures referred to one of several sacred groups who invited deities to a ritual. However, in Korean paintings of a nectar ritual, the iconography symbolized the patronage of the royal court and underlined the historicity and tradition of nationally conducted water and land ceremonies. This royal patronage implied the social and governmental sanction of Buddhist rituals. By including depictions of royal family members and their royal relatives, Joseon Buddhist paintings highlighted this approval. The Joseon ruling class outwardly feared that Buddhist rituals might undermine observance of Confucian proprieties and lead to a corruption of public morals, since monks and laymen, men and women, and people of all ranks mingled within the ritual spaces. The concern of the ruling class was also closely related to the nature of festivals, which involved deviation from the routines of daily life and violation of taboos. Since visual media such as paintings were considered to hold a special power, some members of the ruling class attempted to exploit this power, while others were apprehensive of the risks they entailed. According to Joseon wangjo sillok (The Annals of the Joseon Dynasty), the Joseon royal court burned Buddhist paintings and ordered the arrest of those who created them, while emphasizing their dangers. It further announced that so many citizens were gathering in Buddhist ritual spaces that the capital city was being left vacant. However, this record also paradoxically suggests that Buddhist rituals were widely considered festivals that people should participate in. Buddhist rituals could not be easily suppressed since they performed important religious functions reflecting the phases of the human life cycle, and had no available Confucian replacements. Their festive nature, unifying communities, expanded significantly at the time. The nectar ritual paintings of the late Joseon period realistically delineated nectar rituals and depicted the troops of traveling actors and performers that began to emerge during the seventeenth century. Such Buddhist rituals for consoling souls who encountered an unfortunate death were held annually and evolved into festivals during which the Joseon people relieved their everyday fatigue and refreshed themselves. The process of adopting Buddhist rituals-regarded as "dangerous festivals" due to political suppression of Buddhism in the Confucian nation-as seasonal customs and communal feasts is well reflected in the changes made in Buddhist paintings.

• Journal of the korean academy of Pediatric Dentistry
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• v.44 no.4
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• pp.397-402
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• 2017

The aim of this study was to assess the spacing and crowding of the anterior teeth in the primary dentition in Hwaseong city. Photographs of the anterior segment of 237 children satisfied the criteria. The presence of primate spaces and developmental spaces was assessed by the proximal contacts. Physiologic spacing was observed in 47.3% and 38.0% of the cases in the upper and lower arches, respectively. 43.5% showed the presence of two-segment contact or crowded dentition. Physiologic spacing was observed more in boys than in girls. In the maxilla, primate space was more frequent than developmental space; however, in the mandible, the difference was low. In the maxilla, the space between the central incisor and the lateral incisor was more frequent than the space between both central incisors. In contrast, in the mandible, the space between both central incisors was more common than the space between the central and lateral incisors or between the lateral incisors and canine. The present study describes the tendency for anterior spacing and crowding in the primary dentition. Further longitudinal studies with a larger sample are needed. Dentists should consider these concepts of spacing or contact/crowding when performing full coronal restorations of primary anterior teeth.

• Journal of Chest Surgery
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• v.17 no.1
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• pp.118-124
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• 1984

Congenital Cystic Adenomatiod Malformation (C.C.A.M.) is rare, but one of the most common congenital pulmonary anomalies that cause acute respiratory distress in the newborn infants. It is characterized and differentiated from the diffuse pulmonary cystic disease pathologically, i.e. adenomatoid appearance due to marked proliferation of the terminal respiratory components. An 2/12 year old male patient was suffered from respiratory distress and cyanosis on crying since birth, but no specific therapy was given. With progression of symptoms, he came to Korea University Hospital for further evaluation and then transfered to Dept. of Chest Surgery for operative correction under the impression of Congenital Obstructive Emphysema suggested by a pediatrician. On gestational and family history, there was nothing to be concerned such as congenital anomaly. Physical examinations showed; moderate nourishment and development (Wt. 5.5kg), cyanosis on crying, both intercostal and lower sternal retraction on inspiration, Lt. chest building with tympany, Rt. shifting of cardiac dullness, decreased breathing sound with expiratory wheezing on entire Lt. lung field, decreased breathing sound on Rt. upper lung filed, and tachycardia. The remainders were nonspecific. Laboratory findings were normal except WBC $14000/mm^3$ (lymphocyte 70%), Hgb 9.8m%, Hct 28%, negative Mantaux test, and sinus tachycardia and counter-clockwise rotation on EKG. Preoperative simple Chest PA revealed marked hyperlucent entire Lt. lung, herniation of Lt. upper lobe to Rt., collapsed Rt. upper lobe, tracheal deviation and mediastinal shifting to Rt., and no pleural reaction. At operation, after Lt. posterolateral thoracotomy, 4th rib was resected. Operative findings were severe emphysematous changes limited to both lingular segmentectomy was done. The resected specimen showed slight solidity, measuring $8{\times}4.5{\times}2cm$ in size, and small multiple cystic spaces filled with air. Microscopically, entire tissue structures were glandular in appearance, cyst were lined by ciliated columnar epithelium, and occasional cartilages were noted around the cystic spaces. Bronchial elements were dilated but normal pattern on histologically. The patient had a good postoperative courses clinically and radiologically, and discharged on POD 10th without event. The authors report a case of Cogenital Cystic Adenomatoid Malformation (C.C.A.M.)

• Journal of architectural history
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• v.21 no.1
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• pp.7-26
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• 2012

Nakseonjae in Changdeokgung Palace was established at The King Hunjong's 13rd year (1847), the mid-19th century. It was constructed for own rests of King Hunjong and the residence of Kyungbin (king's concubines), and is showing features of upper-class houses from several points such as rustic architectural types by getting out of authoritative aspects as king's shelter space within the palace, block and floor distribution that separated spaces for men and women, simplicity in structures and styles, and non-colorful painting etc. This study aims at tracing on which architectural types did the upper-class houses within Hanyang (modern Seoul) at late Joseon Dynasty have and what was characteristics of Nakseonjae. The resemblance between Nakseonjae and the upper-class houses was very little differences from scale aspects, and floor plan shapes of Anchae (women's quarters) and Sarangchae (men's quarters) were followed basic common styles. Also, resemblance could be confirmed in the structural styles too. Characteristics of Nakseonjae are showing apparent differences from clearance compositions such as hall configuration etc. Nakseonjae was king's dwelling place, and spaces for house's collateral functions such as kitchen, stable, and warehouse etc together with shrine were unnecessary, and such places were substituted into servants' quarters for assisting the Royal family. In detailed structural styles, column's size was larger 3cm or more than the upper-class houses, and its height was higher to the degree of 30~60cm. Besides, formality as king's shelter space was raised more in decorating aspects, and Nakseonjae was implemented by getting architectural influences from Qing Dynasty of China. This study induced features of Hanyang's upper-class houses at the 19th century by supplementing distribution and space configurations at existing cases of Seoul and Gyeonggi area together with house diagrams having been collected by Gaokdohyung (site and floor plan) of Jangseogak Library, and confirmed resemblances and differences with Nakseonjae, that is, features of Nakseonjae. Through the result, this study judges a fact that architecture of Nakseonjae seemed to be affected from conveniences of upper-class houses within Hanseong, and also architectural styles and distribution types of Nakseonje would give influences to the upper-class houses.