老人의 生活 滿足度와 이에 影響을 미치는 要因

金載敦,南喆鉉 대한보건협회 1997 대한보건연구 Vol.23 No.2

This study aims at devising a policy and a measure for solution of olders' problem such as olders' health welfare to heighten the satisfied degree of increasing old aged population, and establishing a nursing home. This questionnaire was made from April 1, 1995 through April 30, for 1 month by the old 300 who had their spouse, from big cities like Seoul, Taegu, Pusan, from medium and small cities like Kyongsan, Wisan, Jochiwon and outskirts. We obtain a result as below form interviewing and analyzing the investigation data of Korean Health Social Research Institute. The summary and conclusions are as follows. 1. General characteristics of the respondents; 61.1% were men, 42.2% were in the age group of 60~64, 35.0% were graduates of primary school, 47.3% were having no religion, 92.6% were from farming or fishing villages, in long term residence, 77.1% were in farming of fishing villages, monthly income were 200~390 thousand a couple jointly, 83.0% were the residents in an individual house. 2. The LSI level of the respondents was 11.49 +/- 5.70(47.0/100) of the perfect score 24. It was significantly high when the age is younger, when the education level was higher, and when the monthly income was more. And it was respectively higher than the other groups in men, in Buddhists(P<0.05). 3. The LSI level was high in the old, when the education level was higher, when monthly income was more, when the economic status was better, when going to a hospital, clinic, of pharmacy was more convenient(P<0.001). The residents living in an apartment and the owner of a persent house were significantly high in single old women. But there was no significance statistically in age, religion, having a single room or not. 4. LSI by the self existence was high when being respected from youth(P<0.05), when being treated warmly, and when the frequency to participate in decision family problem was more frequent(P<0.001). 5. LSI was high when the respondents had no desease(P<0.001), when the health status was better(P<0.001). 6. LSI was high when ADL like bathing, changing clothes, eating, getting up, going out, going to stool, and so on was easier(P< 0.001). 7. LSI was significantly high when he or she had sons or daughters who lived apart, when the frequency of meeting or getting in touch with them were frequent, when the frequency of meeting with brothers and sisters or grandchildren who were living were frequent, when the frequency of connection with friends, neighbors, and relatives were frequent. In case that he or she had parents, brothers and sisters, or grandchildren who live apart, LSI was high. But there was no significance. 8. LSI was high when the frequency of meeting with brothers and sisters who were living and grandchildren were frequent, when the frequency of connecting with friends, neighbors, and relatives were frequent(P<0.001). 9. The main factors which had a significant effect on LSI were a degree of playing a part in the family, a monthly income, religion, the frequency of meeting and connecting with sons and daughters who were living apart. The related variables could explain 52.8%. As mentioned above, to heighten LSI of the old, it is important to have many chances to meet family, relatives, friends and neighbors. In addition the convenience of a house, considering the benefit of health care, to be treated well and realize his self-existence, to help play a social role, to get rid of difficulty in ADL. To do this, government, religion groups, related groups, related professionals have to devise a policy and a measure with great interests. For the development of health care welfare facility and education data for the aged, consider to fill up the LSI of the old.

OLED 페유리 미분말을 혼화재로 활용한 콘크리트의 탄산화 특성 평가

김재돈,장일영,Kim, Jae-Don,Jang, Il-Young 한국산업융합학회 2020 한국산업융합학회 논문집 Vol.23 No.6

In this study, the carbonation characteristics of concrete according to the mixture of OLED waste glass were evaluated. Replacement capacities of OLED waste glass were 0%, 10%, 20%, and 30% of cement, and they were named OG 0, OG 10, OG 20, and OG 30. As a result of the compressive strength test, OG 0 without replacing OLED waste glass showed high intensity until the 14th. However, the higher the replacement rate of OLED waste glass, the higher the compressive strength of 28 days. In addition, the speed of carbonation was faster with the higher the replacement rate of OLED waste glass, and the accelerated carbonation experiment was about three times faster than the natural carbonation test. In conclusion, the carbonation characteristics of OLED concrete are expected to be positive in terms of atmospheric CO2 absorption.

콘크리트 포장에서 발생하는 온도피해 저감에 관한 연구

김재돈,장일영 한국재난정보학회 2023 한국재난정보학회 논문집 Vol.19 No.2

연구목적: 본 연구에서는 콘크리트 포장의 온도피해를 줄이기 위해 상변화에너지가 큰 PCM을 콘크리 트에 혼입하고 이에 따른 성능테스트를 진행하였다. 연구방법: 저온 및 고온에 대한 온도피해를 감소시 키기 위해 4.5°C와 44°C의 상변화 온도를 가지는 캡슐형 PCM을 10%, 30%, 50% 치환하여 콘크리트에 혼입하였으며 열전대와 변온챔버를 활용하여 열성능 실험과 압축강도 실험을 진행하였다. 연구결과: 열성능 실험 결과 PCM의 혼입은 최대 25%이상의 온도저항성을 향상시키는 것으로 나타났으며 다량 치환시 높은 비열로 모든 온도에서 열저항성을 높이는 것으로 나타났다. 압축강도 실험 결과 30%이상 의 치환은 압축강도를 저하시키는 결과를 나타냈으며 PCM의 상변화온도를 기준으로 큰 강도차이를 나타냈다. 결론: PCM의 혼입은 콘크리트의 열성능을 증가시키는 것으로 나타냈으며 PCM의 상변화 온도 부근에서 가장 큰 열성능 증가폭을 나타냈다. 또한 가장 높은 치환율인 50% 치환에서 10%~20% 의 작은 강도저하가 발생하였으므로 사용성에 큰 문제가 없을 것으로 판단되며 열성능 향상을 위해 추 가적인 PCM 투입이 가능할 것으로 판단된다. Purpose: Although the damage caused by abnormal temperatures is extensive, blow-up or black ice is typical in concrete structures. In this study, PCM with high phase change energy was mixed with concrete to reduce temperature damage to concrete pavement. Method: In order to reduce temperature damage to low temperatures and high temperatures, capsule-type PCM with phase change temperatures of 4.5°C and 44°C was replaced by 10%, 30%, and 50%, and thermal performance experiments and compressive strength experiments were conducted using thermocouples and variable chambers. Result: As a result of the thermal performance experiment, it was found that the incorporation of PCM improves temperature resistance by up to 25% or more, and increases thermal resistance at all temperatures with high specific heat when substituted in large amounts. As a result of the compression strength experiment, a substitution of 30% or more resulted in a decrease in the compression strength, and a large strength difference was shown based on the phase change temperature of the PCM. Conclusion: The incorporation of PCMs has been shown to increase the thermal performance of concrete, with the greatest increase in thermal performance near the phase change temperature of PCM. In addition, a small strength reduction of 10% to 20% occurs at the highest substitution rate of 50% substitution, so there is no significant problem with usability, and additional PCM substitution is expected to improve thermal performance.

CA₂혼입 페이스트의 부식저항성에 관한 연구

김재돈 ( Jae-don Kim ),장일영 ( Il-young Jang ) 한국산업융합학회 2022 한국산업융합학회 논문집 Vol.25 No.2

Deterioration in durability of structures due to the steel corrosion is difficult to determine whether or not corrosion is initiated and how much propagated, and moreover, repair and maintenance are not easy to deal with. Therefore, preventive treatments can be the best option to avoid the deterioration. Various methods for preventing corrosion of steel, such as electrochemical treatments, anti-corrosion agents and steel surface coatings, are being developed, but economic and environmental aspects make it difficult to apply them to in-situ field. Thus, the purpose of this study was to improve corrosion resistance by using CA-based clinker that are relatively simple and expected to be economically profitable Existing CA-based clinkers had problems such as flash setting and low strength development during the initial hydration process, but in order to solve this problem, CA clinker with low initial reactivity were used as binder in this study. The cement paste used in the experiments was replaced with CA₂ clinker for 0%, 10%, 20%, and 30% in OPC. And the mixture used in the chloride binding test for the extraction of water-soluble chloride was intermixed with Cl- 0.5%, 1%, 2%, and 3% by weight of binder content. To evaluate characteristic of hydration heat evolution, calorimetry analysis was performed and simultaneously chloride binding capacity and acid neutralization capacity were carried out. The identification of hydration products with curing ages was verified by X-ray diffraction analysis. The free chloride extraction test showed that the chlorine ion holding ability improved in order OC 10 > OC 30 > OC 20 > OC 0 and the pH drop resistance test showed that the resistance capability in pH 12 was OC 0 > OA 10 > OA 20 > OA 30. The XRD analyses showed that AFm phase, which can affect the ability to hold chlorine ions, tended to increase when CA₂ was mixed, and that in pH12 the content of calcium hydroxide (Ca(OH)₂), which indicates pH-low resistance, decreased as CA₂ was mixed

공간 절약형 회전 콘센트 설계

김재돈(J. D. Kim),곽진호(J. H. Gwak),김효준(H. J. Kim),김호찬(H. C. Kim) 한국기계가공학회 2019 한국기계가공학회 춘추계학술대회 논문집 Vol.2019 No.10

한방의료이용 행태와 이에 영향을 미치는 요인 분석

김성진,남철현,김재돈,김병화,김기열,Kim Sung-Jin,Nam Chul-Hyun,Kim Jae-Don,Kim Byoung-Ha,Kim Gi-Yeol 대한예방한의학회 2004 대한예방한의학회지 Vol.8 No.1

This study was conducted to analyze community residents' behavior of Oriental medicine utilization and its related factors in order to provide basic data for formulation of policies on Oriental medicine. The subjects of this study was 500 residents who lived in big or medium sized cities and towns or villages Data were collected from March, 2002 to June, 2002. The results of this study can be summarized as follows. 1) According to socio-demographic characteristics of the respondents, female was 50.3%; 'over 50 years old' 29.9%, 'over college graduate' 39.7%, 'housewife' 23.0%, 'having spouse' 62.1%, 'Buddhist' 50.8%, 'living in big cities' 59.0%, 'middle economic class' 88.1%. 2) The highest proportion of frequency of Oriental medicine utilization was over 10 times(32.5%). The respondents visited Oriental medicine institutions for taking invigorant(51.1%), treatment of diseases in muscle or bone system(30.8%), treatment of diseases in digestive system(6.3%), etc. 3) According to the reasons of utilizing Oriental medicine, the proportion of good effect was highest(36.3%). 66.8% of the respondents replied that Oriental medical fee was expensive, while 0.8% of them replied that it was not expensive. 33.3% of them thought it was proper. 4) 35.5% of the respondents replied that treatment by Oriental medicine could cause side effect and 40.3% of them replied that the side effect could be caused by taking herb medicine. 5) 62.8% of the respondents replied that they would continuously receive opinions on Oriental medicine. The score of knowledge level of treatment by Oriental medicine $6.25{\pm}2.82$ points on the basis of 14 points. 6) The variables significantly influencing utilization of Oriental medicine includes taking diseases, living in big cities, male, upper (economic class, having religion, and effect of Oriental medicine. 7) The factors affecting effect of herb medicine were effect of treatment by Oriental medicine, marital status, knowledge level of Oriental medicine, having diseases, and frequency of receiving the treatment.

지역주민의 한방의료 이용성향과 진료만족도

서호석,남철현,김재돈,김성진,류장근,전봉천,김미애,Suh, Ho-Suk,Nam, Chul-Hyun,Kim, Jae-Don,Kim, Sung-Jin,Ryu, Jang-Gun,Jun, Bong-Chun,Kim, Mi-Ae 대한예방한의학회 2007 대한예방한의학회지 Vol.11 No.2

The purpose of this study was to identify a tendency in patients who seek oriental medical service and factors influencing patient satisfaction. The study was conducted with 1,520 residents of a community during the period from February 5, 2005 through June 30, 2005 using a questionnaire. This study results are summarized as follows : 1. Of subjects who sought oriental medical service, 66.2% had musculoskeletal disorder and connective tissue disease, 18.9% had digestive tract disease, 16.4% had respiratory disease, 8.2% had endocrinemetabolic disease, 7.5% had circulatory disease and the remaining subjects had other diseases(p<0.001). 2. Of subjects who sought oriental medical service for the treatment of musculoskeletal disorder, 84.9% preferred acupuncture. Of those who had digestive tract diseases, 47.0% preferred packaged herbal medicine. Of those who had respiratory disease, 63.0% preferred packaged herbal medicine. 3. Acupuncture was the most often sought by subjects with musculoskeletal disorder. Packaged herbal medicine was sought by subjects with respiratory disease, digestive tract disease, endocrine-metabolic disease or circulatory disease. Tablet-type herbal medicine was sought by subjects with musculoskeletal disorder or digestive tract disease. Combined therapy was sought by subjects with musculoskeletal disorder, digestive tract disease, hematopoietic disease or immune disorder. 4. The level of satisfaction with oriental medical service was higher in subjects with circulatory disease, subjects with digestive tract disease, subjects with neurological disorder and subjects with musculoskeletal disorder in descending order. Of total subjects, 39.4% experienced side effects of oriental medical care, 38.1% experienced side effects of herbal medicine. About 51.9% considered the price of herbal medicine costly while 23.2% considered it reasonable. 5. Subjects' knowledge of herbal medicine was measured as $29.2{\pm}3.83$ out of 42 scores or 69 out of 100 points, indicating a low knowledge level. Subjects' knowledge was influenced by occupation, religion, side effects, sex, age, residence area, the type of insurance. These variables explained 15.2% of the variance. 7. Of total subjects, 56.8% were satisfied with oriental medical service. Patient satisfaction varied with occupation, religion, the type of insurance, health state and treatment outcomes. These variables explained 37.3% of the variance. Conclusion : The majority of subjects were satisfied with oriental medical service. However, oriental medical care are not widely used to treat all kinds of diseases while its use skews to a small categories of diseases. It is therefore necessary for the government and oriental medical service providers to develop new therapy approaches for the treatment of a broader range of diseases.

LCD 폐유리 콘크리트의 염화물 확산에 관한 연구

양희준 ( Hee-jun Yang ),김재돈 ( Jae-don Kim ),장일영 ( Il-young Jang ) 한국산업융합학회 2021 한국산업융합학회 논문집 Vol.24 No.2

The purpose of this study is to use waste resources and improve the physical properties of concrete by crushing LCD waste glass for which an appropriate recycling method has not been developed and mixing it into concrete. LCD waste glass was pulverized into two sizes with an average particle diameter of 5㎛ and 10㎛ using a ball mill, and cement paste and concrete were produced by substituting 10% and 20%. Cement paste was used for XRD analysis, and concrete was used for compressive strength test, micropore structure test, and repid chloride penetration test. As a result of analyzing the hydrate composition by XRD, the reduction of calcium hydroxide due to LCD substitution was roughly confirmed, and in the result of compressive strength, concrete including LCD powder showed higher strength than OPC, and was up to 24% higher at 5㎛-20%. In addition, the replacement of the LCD powder reduced the size of the pores inside the concrete, and reduced the penetration rate of chloride. The reason for this result is believed to be due to the pozzolanic reaction caused by SiO2 contained in a large amount of waste LCD glass. Calcium hydroxide produced by the hydration reaction reacts with SiO2 to form C-S-H gel, and it is thought that the gel fills the voids in the concrete to increase the compressive strength and prevent the penetration of harmful ions.