• 한국IT서비스학회지
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• 제9권4호
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• pp.207-217
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• 2010

This paper is concerned with a protection system for the mentally handicapped, which is utilizing a GPS receiver and mobile communications. The protection system consists of a location notification equipment, a location identification and management server, and a cell phone of guardian. The location notification equipment is made up of a GPS receiver, a CDMA communication module and a microprocessor. The equipment transfers the location of the mentally impaired to the location identification and management server when the handicapped gets out of a certain bound of the designated facility. The server marks the handicapped's location on the map in the server and also notifies the guardian's cell phone of the locations. With applying the proposed protection system to social welfare organizations related to the mentally handicapped, it is expected to efficiently contribute to the promotion of the handicapped's welfare.

• 대한가정학회지
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• 제42권2호
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• pp.195-212
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• 2004

This research is based on the survey of welfare beneficiaries, aiming to set up the gender-equal welfare policies. Through the survey, this research examines status of women in the family and society and also examines, the degree of perception of women's welfare policies, needs, and satisfaction. According to the survey results, the current welfare policies that are limited to needy women should expand its range, enforcing the infra structure. That employment policy for women turned out to be very important in welfare policies. Demand for more enlarged welfare policies is quite high, especially in housing, employment and elderly care. On the contrary, the degree of satisfaction degree appears quite low because of unrealistic welfare program and benefits. In order to improve the welfare policies, more active and realistic employment policies should be emphasized with the proper support for family life. To raise the status of women, proper policies for women's economic independence should be set up. In addition, consciousness of gender equality should be encouraged in the whole society. Also, women's participation in politics and decision-making process is necessary.

• 디지털산업정보학회논문지
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• 제11권1호
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• pp.19-25
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• 2015

In this time, as an industrial society developed to a welfare society, more and more people want their quality of lives upgraded and specially customized service by mass production/mass consumption. And it leads to an increase of requiring service. There're active developments and studies on various IT equipment as the requirement made IT devices used in service. In this paper, we try to design and realize radio paging DID by using smart device to be used as a receiver of a radio pager which is broadly used at face to face service. Firstly, we used MCU to design and implement Wireless Calling Gateway which change radio calling signal of ISM band to smart device. A receiver of wireless caller used original receiver module. Also it used bluetooth module to communicate with smart device. It was possible to have satisfactory communication since radio paging signal converter and smart device were linked in 3M. Secondly, to indicate various paging information delivered from a radio pager, we realized DID application program by using Smart PAD. As a result, we could indicate various information compared to an original receiver which only could indicate letters or numeric data. Secondly, we implemented the DID app for wireless calls that can display a variety of information sent from a wireless pager. Was implemented using the Smart Pad. As a result, it is shown that can display a variety of information than the existing receiver.

• Physical Therapy Rehabilitation Science
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• 제7권2호
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• pp.54-60
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• 2018

Objective: Persons with chronic stroke fall more often than healthy elderly individuals. The Timed Up and Go test (TUG) is used as a fall prediction tool, but only provides a result for the total measurement time. This study aimed to determine the optimal cut-off values for each of the 6 components of the TUG. Design: Retrospective study. Methods: Thirty persons with chronic stroke participated in the study. TUG evaluation was performed using a wearable miniaturized inertial sensor. Sensitivity, specificity, and predictive values were calculated using the Receiver Operating Characteristic (ROC) curve analysis for the measured values in each section. Optimal values for fall risk classification were determined. Logistic regression analysis was used to investigate the risk of future falls based on TUG. Results: The cut-off values of the 6 sections of the TUG were determined, as follows: sit-to-stand >2.00 seconds (p<0.05), forward gait >4.68 seconds (p<0.05), mid-turn >3.82 seconds (p<0.05), return gait >4.81 seconds (p<0.05), end-turn >2.95 seconds (p<0.05), and stand-to-sit >2.13 seconds (p<0.05). The risk of falling increased by 2.278 times when the mid-turn value was >3.82 seconds (p<0.05). Conclusions: The risk of falls increased by 2.28 times when the value of the mid-turn interval exceeded 3.82 seconds. Therefore, when interpreting TUG results, the predictive accuracy for falls will be higher when the measurement time for each section is analyzed, together with the total time for TUG.

• 한국기술혁신학회:학술대회논문집
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• 한국기술혁신학회 1999년도 춘계학술대회
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• pp.117-149
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• 1999

This paper is to examine the effect of the receiver pays principle (RPP) on the calling price, social welfare and interconnection charge. A significant trouble with introducing this system in telecommunications pricing is the possibility that the receiving party may refuse to receive a call if the charge he has to bear is very high. We find the condition for no calls to be refused and show that the profit maximizing prices charged to the calling party and the receiving party must satisfy this condition. We demonstrate that the calling price under RPP must be lower than the price under the caller pays principle (CPP), that the profit of a firm will be increased under RPP, but that the consumer surplus will not necessarily be increased under RPP despite the lowered calling price. Also, we show that, if the demand function is linear, the reciprocal interconnection charge under RPP is higher than that under CPP.

• Safety and Health at Work
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• 제5권2호
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• pp.91-96
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• 2014

Background: Chronic obstructive pulmonary disease (COPD) is an important cause of occupational mortality in miners exposed to coal mine dust. Although the inflammatory mediators involved in COPD have not been defined, many studies have shown that inflammatory mediators such as reactive oxygen and nitrogen species are involved in orchestrating the complex inflammatory process in COPD. Methods: To investigate the relevance of exhaled biomarkers of oxidative and nitrosative stress in participants with COPD, we determined the levels of hydrogen peroxide, malondialdehyde (MDA), and 3-nitrotyrosine (3-NT) in exhaled breath condensate (EBC) in 90 retired elderly coal miners (53 non-COPD and 37 COPD participants). Results: Mean levels of MDA (4.64 nMvs. 6.46 nM, p = 0.005) and 3-NT (3.51 nMvs. 5.50 nM, p = 0.039) in EBC were significantly higher in participants with COPD. The median level of MDA did show statistical difference among the COPD severities (p = 0.017), and the area under the receiver operating characteristic curve forMDA (0.67) for the diagnostic discrimination of COPD indicated the biomarker. The optimal cutoff values were 5.34 nM (64.9% sensitivity and 64.2% specificity) and 5.58 nM (62.2% sensitivity and 62.3% specificity) forMDA and 3-NT, respectively. The results suggest that high levels ofMDA and 3-NT in EBC are associated with COPD in retired elderly miners. Conclusion: These results showed that the elevated levels of EBC MDA and EBC 3-NT in individuals with COPD are biomarkers of oxidative or nitrosative stress.

• 페미니즘연구
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• 제11권2호
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• pp.49-83
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• 2011

이 글은 복지국가의 핵심적 키워드인 '돌봄'과 '돌봄노동'의 특성을 살펴보면서, 여성들 간의 차이에 주목하여 '돌봄노동'의 제도화 방식을 살펴보고자 했다. '돌봄'은 도덕성의 표현이자 구체적인 노동을 수반하는 행위로 정의할 수 있으나, 복지국가에서의 돌봄노동은 '의존자를 돌보는 활동'으로 제한하여 가사노동과 조작적으로 분리하는 것이 정책적 제도화에 유용한 것으로 보았다. 돌봄노동은 동기적 측면에서 시장노동과 구분되지만 정서적이고 도덕적인 특성 그 자체는 표준화되거나 상품화되는데 한계가 있다는 점을 인식하고, 돌봄 제공자에게 정서적 동기를 부과하는 것은 현실적이지 않음을 지적했다. 여성의 가족 내 무급 돌봄 책임을 탈가족화를 통해 제도화하는 복지국가는 돌봄 노동에 대한 급여지급과 사회적 서비스 확대를 통해 구체화되는데, 이러한 돌봄노동의 제도화방식은 여성임금노동자와 여성전업주부, 돌봄 제공자와 돌봄 이용자로서의 여성, 그리고 여성계층의 양극화와 같은 여성내부의 차이에 영향을 주게 된다. 현금급여 중심의 돌봄노동 제도화는 가족 내 성별분업을 강화할 수 있으며, 전근대적이며 불평등한 권력관계의 노동과정을 가져올 가능성이 높고, 돌봄 노동력 자체를 양극화시킬 수 있으며, 더불어 좋은 일자리로서의 돌봄 일자리 확대를 어렵게 하는 문제점 등이 있다. 여성주의 진영의 복지국가운동은 '돌봄노동'의 탈가족화를 서비스 확대로 제도화하고 이와 동시에 돌봄노동의 탈성별화를 위한 정책 목록을 준비할 필요가 있다.

• 재활복지공학회논문지
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• 제6권2호
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• pp.49-54
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• 2012

본 연구에서는 정신지체 아동들의 직업재활 훈련을 위한 e-러닝 시스템을 개발하였다. 개발된 시스템은 단계별 학습을 통하여 지식을 1차적으로 습득하고 문제 풀이와 시범 영상을 통하여 복습하도록 구성되어 있다. 또한, 리허설 기능을 통하여 습득된 정보가 올바르게 습득되었는지 점검할 수 있도록 구성하였다. 리허설을 위한 기기는 수신부와 송신부로 나누어 제작되었다. 송신부는 대상자의 작업을 감지하기 위한 적외선 센서와 압력센서 그리고 무선통신을 위한 블루투스 모듈로 구성하였다. 수신부는 무선통신을 위한 블루투스 모듈과 컴퓨터와의 통신을 위한 USB 입력 부분으로 제작되었다.

• 한국ITS학회 논문지
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• 제8권6호
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• pp.88-97
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• 2009

WBAN은 인체 내부 혹은 인체로부터 3미터 이내의 주변에서 일어나는 근거리 무선 통신을 목적으로 하는 네트워크이며 운전자의 생체 정보를 분석하여 보다 안전한 차량 운전이 가능하도록 하는 차량 산업에 적용할 수 있다. 본 논문에서는 고속 WBAN 시스템의 요구 조건을 만족하기 위한 UWB 기술과 다중 안테나 기법에 대해 논하고 Noncoherent UWB 수신기를 이용한 수신 안테나 선택 기법을 제안한다. 제안된 방식은 Noncoherent 수신기를 이용하여 BPPM 구간의 에너지 비율을 비교하여 수신 신호를 선택하는 기법으로 2~4개의 수신 안테나 환경에서의 성능을 비교 하였고, 시스템의 요구조건인 10-3 BER을 만족하는 경우에는 수신 신호의 에너지 크기를 비교하여 안테나를 선택하는 방식에 비해 4dB 이상의 성능 향상을 보였다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제30권1호
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• pp.9-16
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• 2019

Objectives: The purpose of this study was to analyze the discriminant validity and the clinical cut off scores of the Child Behavior Checklist 1.5-5 (CBCL 1.5-5) in the diagnosis of autism spectrum disorder (ASD) and non-ASD. Methods: In total, 104 ASD and 441 non-ASD infants were included in the study. T-test, discriminant analysis, receiver operating characteristic (ROC) curve analysis, and odds ratio analysis were performed on the data. Results: The discriminant validity was confirmed by mean differences and discriminant analysis on the subscales of Emotionally reactive, Somatic complaints, Withdrawn, Sleep problems, Attention problems, Aggressive behavior, Internalizing problems, Externalizing problems, and Total problems, along with the Diagnostic and Statistical Manual of Mental Disorders (DSM)-oriented scales between the two groups. ROC analysis showed that the following subscales significantly separated ASD from normal infants: Emotionally reactive, Somatic complaints, Withdrawn, Sleep problems, Attention problems, Aggressive behavior, Internalizing problems, Externalizing problems, Total problems, and DSM pervasive developmental problems. Moreover, the clinical cut off score criteria adopted in the Korean-CBCL 1.5-5 were shown to be valid for the subscales Withdrawn, Internalizing problems, Externalizing problems, Total problems, and DSM pervasive developmental problems. Conclusion: The subscales of Withdrawn, Internalizing problems, Externalizing problems, Total problems, and DSM pervasive developmental problems significantly discriminated infants with ASD.