• 대한방사선기술학회지:방사선기술과학
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• 제41권5호
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• pp.451-456
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• 2018

During last a decade, there has been increased demand for 3D-printed medical devices with significant improvement of 3D-Printer (also known as Additive. Manufacturing AM), which depend upon human body features. Especially, demand for personalized medical material is highly growing with being super-aged society. In this study, 3D-reconstructed 3D mesh image from CT/MRI-images is demonstrated to analyse each patients' personalized anatomical features by using in house, then to be able to manufacture its counterpart. Developed software is distributed free of charge, letting various researcher identify biological feature for each areas.

• 동아시아식생활학회지
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• 제20권2호
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• pp.193-200
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• 2010

The study examined the preference and style of consumption of perilla leaves(Perilla frutescens var. japonica Hara), a popular food item in Korea, by consumers in the Daejeon area. Of the respondents 35.2% purchased perilla leaves in a large super-market limited to two to three bundles. Comsumer preferences were to consume the leaves raw or pickled with salt or soy sauce, or use as a fish soup ingredient. The majority of consumers aged 20~29-years-of age preferred to wrap sashimi with perilla leaves. As a side dish, regardless of age, consumers preferred to pan-fried perilla leaves with mincedmeat and perilla leaves.

• 대한두개안면성형외과학회지
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• 제23권5호
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• pp.205-210
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• 2022

Background: Nasal bone fractures are the most common type of facial bone fracture, but are under-studied in adults above 65 years of age. Therefore, we investigated the epidemiology and patterns of nasal bone fractures among older adults in comparison to different age groups. Methods: This retrospective study included 2,321 nasal bone fracture patients who underwent surgery at our hospital from January 2010 to December 2017. The patients were classified by age as preschoolers, school-age children, young and middle-aged adults, and the elderly. We performed pairwise comparisons between elderly patients and each other age group in terms of sex, cause of injury, and fracture type. Results: The 2,321 nasal bone fracture patients included 76 elderly patients (50 men [65.8%] and 26 women [34.2%]). In these patients, the two most common injury causes were falling or slipping down (n= 39; 51.3%) and road traffic accidents (n= 19; 25.0%). According to the Stranc and Robertson classification, the most common force vector was lateral, and plane 2 fractures with lateral forces predominated. Conclusion: The elderly showed similar patterns of nasal bone fractures to those observed in young and middle-aged adults, but significant differences from preschoolers (in the injury vector and plane of fracture) and from school-age children (in the sex ratio and plane of fracture). However, elderly patients presented significantly different epidemiological characteristics compared to the other three groups. Therefore, it is necessary to improve the quality of life of the elderly and prepare for the upcoming super-aged society by taking steps to reduce the incidence and severity of fractures. Possible options for doing so include strengthening individual-level safety factors and expanding the social safety net for the elderly.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제10권1호
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• pp.49-54
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• 2006

Special educations for gifted students have not been given enough attention in Japan with a little exception. Indeed, such educations were sometimes despised in Japan by teachers and parents as well as by boards of education, because one of the features of postwar education system in Japan was an excessive egalitarianism. The other is cramming of knowledge in school education, which is necessary for high school graduates to pass entrance examinations for famous universities such as University of Tokyo, or Kyoko University. However, in 1997, some trials of special educations for gifted students started. The Ministry of Education, Sports, Culture, Science and Technology admitted 'skipping a year to enter universities.' In this paper, the following three topics would be discussed. 1. Enrollment of high school students aged 17 into Chiba University. 2. Summer seminars conducted by Japan Mathematics Foundation of Olympiad. 3. Super Science High School Program funded by the Ministry of Education.

• 대한안전경영과학회지
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• 제19권3호
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• pp.43-48
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• 2017

The first tram in korea was commended the operation from 1899 to 1968 as a core role of public transportation. However, tram recently is being recognized as an alternative against a traffic congestion, a super-aged society and an environmental pollution problem. Because of these advantages, we are trying to introduce tram in korea. The efforts to introduce trams have focused on the economic analysis for tram construction. But we must be interested in tram operational safety. Early opening tram accidents could affect a negative impact on the additional tram introduction. We are trying to introduce trams in Daejeon, Wi-Rye and Su-won. In this paper, I want to check the safety issues in tram operation phase.

• 전자통신동향분석
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• 제34권5호
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• pp.48-57
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• 2019

As the super-aged society approaches rapidly, the number of people suffering from post-stroke and other neurological disorders is significantly increasing, where prompt and intensive rehabilitation is essential for such people to resume their physical activities in normal daily lives. To overcome the inherent limitations of manual physical therapy, various types of exoskeleton robots are being employed. However, the need of the hour is softer, thinner, lighter, and even stretchable systems for precisely monitoring the motion of each joint without restricting the patients' movements in rehabilitation tasks. In this paper, we discuss the technological trends and current status of emerging stretchable rehabilitation systems, in which sensors, interconnects, and signal-processing circuits are monolithically integrated within a single stretchable substrate attachable to the skin. Such skin-like stretchable rehabilitation devices are expected to provide much more convenient, user-friendly, and motivating rehabilitation to patients with neurological impairments.

• International Journal of Advanced Culture Technology
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• 제11권1호
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• pp.370-375
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• 2023

As we enter a super-aged society, studies are being conducted to reduce complications and deaths caused by falls in elderly adults. Research is being conducted on interventions for preventing falls in the elderly, wearable devices for detecting falls, and methods for improving the performance of fall detection algorithms. Wearable devices for detecting falls of the elderly generally use gyro sensors. In addition, to improve the performance of the fall detection algorithm, an artificial intelligence algorithm is applied to the x, y, z coordinate data collected from the gyro sensor. In this paper, we develop a wearable device that uses a gyro sensor, body temperature, and heart rate sensor for health management as well as fall detection for the elderly. In addition, we develop a fall detection and health management system that works with wearable devices and a guardian's mobile app to improve the performance of the fall detection algorithm and provide health information to guardians.

• 응용통계연구
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• 제31권4호
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• pp.427-446
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• 2018

UN의 고령화사회(ageing society) 정의와 통계청의 장래인구추계 (2016)에 따르면 우리나라는 만 30여년 만에 초고령사회(super-aged society)를 맞이하게 되며, 세계 어느 나라와도 비교할 수 없는 빠른 고령화 속도를 보인다. 이러한 유례없는 고령화 속도에 비해서 장기 시계열의 사망관련 데이터 확보와 연금과 복지정책을 고민하는 인식은 뒤처져 있다. 본 연구는 과거 및 미래 예측을 통해 우리나라 1955-2200년까지 245여 연간의 사망률 자료를 추정 예측하여 가상코호트와 실제코호트의 기대수명을 비교함으로써 그 차이가 어느 정도인지를 가늠해 보았다. 더불어 우리나라 고령화수준을 파악하기 위해 국제비교도 하였다. 역 추계(back-projection) 기간의 추정치는 선행연구와 Lee-Carte (LC) 모형으로 비교 분석해 정확성과 객관성을 높였으며, 2016년 이후의 예측치는 LC method extended with rotation (LC-ER) 모형을 활용해 우리나라의 사망률 개선의 교대현상을 반영하였다. 분석결과 60년 동안(1955-2015년) 약 30년에 가까운 기대수명의 증가가 이루어졌고, 2세기(1955-2155)동안 실제코호트의 기대수명이 가상코호트보다 높게 도출되었다. 실제코호트의 기대수명 비교우위는 비교 국가들 모두 공통적인 경향임을 확인하였다. 그리고 일본과 우리나라가 기대수명의 상위를 점하고 있고, 모든 국가들이 85-90세를 기점으로 가상과 실제코호트의 기대수명에 대한 증가속도가 이전보다 높지 않음을 보였다.

• 대한교통학회지
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• 제33권4호
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• pp.348-356
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• 2015

앞으로 10년 뒤인 2026년 우리나라는 초고령화 사회(super aged society)로 진입할 것으로 예상되며, 이로 인해 사회 전반적인 모든 분야에서 고령자 분석 및 대책 마련에 심혈을 기울이고 있다. 교통 분야에서도 고령자의 보행 교통사고가 급격히 증가하고 있는 점을 고려하여 이를 줄이기 위한 연구개발과 정책적 보완을 위한 노력을 기울이고 있다. 그러나 고령자의 보행행태, 보행능력, 보행영향 요인 등의 기초적인 연구가 전무하여 어려움을 겪고 있다. 이에 본 연구에서는 기존 논문 검토를 통해 보행능력(보행속도)을 일반, 건강, 운동요인 등 3개 분야로 구분하였다. 평균나이 72.6세의 고령자 52명을 대상으로 면접, 국민체력 100, SPBB, Cybex 등의 다양한 방법과 측정도구를 종합하여 3개 분야 총 12개의 세부 요인에 대한 측정을 시행하였다. 그 결과 일반요인인 연령, 체격 등은 보행속도에 미치는 영향이 적었으며, 건강요인 중에는 하지 신근, 운동요인 중에는 평형성, 협응성, SPPB가 가장 보행속도에 가장 많은 영향이 있음을 도출하였다. 이를 활용하여 고령자의 보행능력을 측정하는 보행자립도 모형을 개발하였다. 개발된 모형은 고령자의 보행능력의 진단하여 교통 분야 고령자 보행 연구의 기초자료로 활용될 수 있을 것으로 기대한다.

• 대한교통학회지
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• 제34권5호
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• pp.409-420
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• 2016

한국은 2026년에 초고령화 사회(super aged society)로 진입될 것으로 예상된다. 그럼에도 불구하고 보행은 인간의 기본적인 이동권리라는 측면에서 교통약자의 대부분을 차지하는 고령자의 안전하고 편리한 이동권리 확보는 가장 기초적인 복지로 중요하지만 간과되기 싶다. 이러한 측면에서 본 논문에서는 교통시설물을 설계시 활용을 위한 고령자의 보행특성을 분석하여 제시하였다. 운동 역학적인 보행변수들을 일반인과 비교한 결과, 모든 변수들이 일반인에 비하여 약 75% 수준으로 분석되었다. 고령자는 일반인에 비하여 보행속도가 느리고, 어깨의 움직임이 적은 대신 발목의 움직임이 많으며, 발을 낮게 들며, 지면반발력이 크게 작용되는 등의 보행변수별 보행특성이 조사되었다. 또한 고령자 집단은 집단 안에서도 보행변수별로 서로 차이가 크며, 이를 walking Balance Muscles Factor별로 2개 혹은 3개로 집단화가 가능함을 군집분석을 통하여 알아보았다. 이와 같은 고령자 보행특성은 보도, 경사 및 단차 등의 교통시설물 설계에 활용될 수 있을 것이다.