• 기술사
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• 제14권2호
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• pp.5-11
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• 1981

This analysis has been conducted for 8 chemical plants built in Korea during 1975-1976 and the results have been compared with those in U.S.A. observed by Kenneth M. Guthrie. Equipment and materials supplied by domestic makers are limited in activity field and occupy only 12% of all equipment and material cost. However, unit costs of most materials supplied by home such as cement, steel, cables and carbon steel pipes, etc. being relatively cheaper than those of abroad, their effects on material-to-equipment ratios are apparent. There is a deep difference in labor wage rates between Korea and U.S.A. as much as 16 times. However, the labor productivity observed in these model projects is in the range of 1.1-1.4 to the Gulf Coast, U.S.A. during the same period. And this low wage rate and relatively high productivity have the greatest influence on deviation of Korean cost structure from that of U.S.A. In these model projects, engineering and construction management was conducted by foreign contractors (mostly U.S.A.), and the resulting project indirect cost amounts to 7.5 times as high as most cases executed by Korean contractors alone. Weighted percentage of each component and L/M-ratio by activities of direct field cost derived from this analysis are shown in detail in Tables 2 and 5 to provide a basis for futher study and comparison.

• 대한토목학회논문집
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• 제26권1A호
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• pp.75-89
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• 2006

본 논문에서는 생애주기동안 발생하는 부식이나 일평균교통량 및 중차량의 통행량와 같은 사용환경에 의존하는 강교의 생애신뢰성에 기초한 생애주기비용(Life-Cycle Cost: 이하 LCC) 최적설계 방법론을 제안하였다. 강교 최적설계를 위한 LCC는 초기비용, 생애주기 기대유지관리비용, 생애주기 기대직접복구비용과 인적 혹은 물적손실비용, 도로이용자비용, 그리고 사회-경제 손실비용을 포함하는 간접복구비용을 현재가치의 합으로 정식화하였다. 이러한 LCC비용항목 중에서 생애주기 복구비용의 산정을 위해서는 하중과 저항이력에 의존하는 누적손상확률로부터 산정되는 연파손확률이 고려되어야한다. 이를 위해 본 논문에서는 Nowak의 활하중 모델(1993)과 부식개시, 부식률, 그리고 재도장영향을 고려한 수정된 부식모델을 제안하였다. 이와같이 본 연구에서 제안된 LCC 최적설계 방법론은 3 경간연속(40 m+50 m+40 m=130 m)의 실제 강박스거더교에 적용되었고, 강재종류, 부식환경, 교통량 및 할인율에 따른 LCC의 효율성에 대해 비교 고찰하였다. 적용예를 통해 부식환경, 일평균교통량, 그리고 중차량의 통행량, 할인율 등은 강교 LCC최적설계에 매우 중요한 영향을 미칠 수 있음을 알 수 있었으며, 이러한 교량의 사용환경인자들은 경우에 따라 LCC 최적설계에 대한 주요 변수로 고려되어야 할 것으로 판단된다.

• Nutrition Research and Practice
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• 제16권5호
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• pp.565-576
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• 2022

BACKGROUND/OBJECTIVES: Various accelerometer equations are used to predict energy expenditure (EE). On the other hand, the development of these equations and their validation studies have been conducted primarily without including older adults. This study assessed the accuracy of 8 ActiGraph accelerometer equations to predict the energy cost of walking in older adults. SUBJECTS/METHODS: Thirty-one participants with a mean age of 74.3 ± 3.3 yrs were enrolled in this study (20 men and 11 women). The participants completed 8 walking activities, including 5 treadmill and 3 self-paced walking activities. The EE was measured using a portable indirect calorimeter, with each participant simultaneously wearing the ActiGraph accelerometer. Eight ActiGraph equations were assessed for accuracy by comparing the predicted EE with indirect calorimetry results. RESULTS: All equations resulted in an overall underestimation of the EE across the activities (bias -1 to -1.8 kcal·min^-1 and -0.7 to -1.8 metabolic equivalents [METs]), as well as during treadmill-based (bias -1.5 to -2.9 kcal·min^-1 and -0.9 to -2.1 METs) and self-paced (bias -1.2 to -1.7 kcal·min-1 and -0.2 to -1.3 METs) walking. In addition, there were higher rates of activity intensity misclassifications, particularly among vigorous physical activities. CONCLUSIONS: The ActiGraph equations underestimated the EE for walking activities in older adults. In addition, these equations inaccurately classified the activities based on their intensities. The present study suggests a need to develop ActiGraph equations specific to older adults.

• Journal of Preventive Medicine and Public Health
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• 제42권3호
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• pp.190-198
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• 2009

Objectives : The objective of this study is to estimate the economic costs of cancer on society. Methods : We estimated the economic burden of people with cancer in South Korea. To perform the analysis, we reviewed the records of people who were cancer patients and those who were newly diagnosed with cancer. The data was compiled from the National Health Insurance Corporation, which included the insurance claims database, a list of cancer patients, a database that records the cancer rates, the Korea Central Cancer Registry Center s cancer patient registry database and the Korea National Statistical Office s causes of death database. We classified the costs as related to cancer into direct costs and indirect costs, and we estimated each cost. Direct costs included both medical and non-medical care expenses and the indirect costs consisted of morbidity, mortality and the caregiver's time costs. Results : The total economic costs of cancer in South Korea stood at 14.1 trillion won in 2005. The largest amount of the cost 7.4 trillion won, was the mortality costs. Following this were the morbidity costs (3.2 trillion won), the medical care costs (2.2 trillion won), the non-medical care costs (1.1 trillion won) and the costs related to the caregiver's time (100 billion won). As a result, the economic cost of cancer to South Korea is estimated to be between 11.6 trillion won to 14.1 trillion won for the year 2005. Conclusions : We need to reduce the cancer burden through encouraging people to undergo early screening for cancer and curing it in the early stage of cancer, as well as implementing policies to actively prevent cancer.

• 농촌의학ㆍ지역보건
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• 제41권1호
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• pp.1-12
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• 2016

농업인의 안전보건 정책 수립에 있어 농작업 재해 규모 및 특성 파악뿐만 아니라 손상 부담 평가도 중요하다. 본 연구에서는 농작업 재해자를 대상으로 주관적인 손상 부담 종류 및 그 특성을 파악해 보았다. 2013년 농업인 업무상 손상 조사에서 파악된 재해자를 대상으로 손상 이후 발생되는 부담을 의료비등 직접 비용과 관련된 1개 항목과 생산성 감소, 인건비 증가 등 간접 비용과 관련된 5개 항목으로 파악하였다. 항목별 분포를 비교하였고, 로지스틱 회귀분석을 통해 농업인의 특성 및 농작업 손상 특성에 따라 부담 항목에 차이가 있는지 살펴보았다. 457명의 농작업 재해자에서 주관적 손상 부담중 '치료기간 중 일을 쉼(휴업)으로 인해 농업에 차질'이 가장 많았으며, 다음으로 '가족에 농업 활동 과중 부담 초래', '치료비로 인한 가계 압박', '작업이 지체되어 생산물의 품질 저하', '고용 인건비 증가', '농업 규모 축소'순이었다. 주관적 손상 부담 항목별로 영향을 미치는 주요 특성은 다음과 같다. '치료기간 중 일을 쉼(휴업)으로 인해 농업에 차질'은 연령, 재해 발생시기, 휴업 치료 기간, 농기계 사용여부이며, '가족에 농업 활동 과중 부담 초래'는 가족수, 농작업 기간, 휴업 치료기간이었다. '치료비로 인한 가계 압박'은 입원 치료 여부와 년간총수입에 따라 차이가 있었다. 기존에 신체 제한이 있었던 경우에는 모든 항목의 주관적 손상 부담이 증가하였다. 우리나라 농작업 재해자의 경우, 의료비와 같은 직접 비용에 대한 부담보다는 간접 비용에 대한 부담이 더 높은 것으로 파악되었고, 농업인의 특성 및 농작업 재해 특성 따라 부담 항목별로 차이가 있음을 알 수 있었다. 농작업 재해가 발생한 농업인에 대한 지원에 있어 간접 비용 부담을 줄이려는 목표와 함께 구체적인 방법이 마련되어야 할 것으로 판단된다.

• Clinical and Experimental Pediatrics
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• 제51권9호
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• pp.977-986
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• 2008

목 적 : 사회적 관점에서 로타바이러스의 사회적 비용을 추계하고자 하였다. 방 법 : 로타바이러스 연간 발생 환자수는 2002년 7월에서 2004년 6월까지 정읍지역에서 보고된 5세 미만 인구 1,000명당 입원 환자 11.6명, 외래 환자는 1,000명당 45.3명을 1년 단위로 환산하여 적용하였으며 의료비 자료는 건강보험심사평가원에 로타바이러스(A08.0)로 청구된 자료를 이용하였다. 2006년 12월부터 2007 년 5월까지 환자 보호자 조사를 실시하여 직접 비의료비 및 간접 비용을 산출하는 근거로 사용하였다. 결 과 : 2005년 5세 미만 아동 중 로타바이러스 감염으로 외래 이용한 환자수는 55,030명, 입원 환자수는 14,092명으로 추정하였다. 의료 비용은 110억원으로 전체의 82.8%를 차지했고, 교통비 및 기저귀 사용 등으로 인한 직접 비의료비는 16억원, 간호에 따른 작업 손실 비용은 6억 8000만원으로 로타바이러스 감염으로 인한 총 사회적 비용은 약 132억원 8천만원으로 집계되었다. 결 론 : 로타바이러스 감염은 의료비 뿐 아니라 비의료비와 간접 비용의 추가적인 지출을 가져오며 이는 사회적으로 큰 손실이 될 것이다. 그러나 본 연구에서는 보수적 추정을 하였으며 추후 연구에서 로타바이러스 감염이 보호자의 삶의 질과 건강수준의 저하에 미치는 영향을 비용 항목에서 충분히 고려할 필요가 있다.

• 한국보건간호학회지
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• 제3권2호
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• pp.5-46
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• 1989

The current medical payment Insurance Rates in Korea stipulate charges for medical treatment by the doctor, pharmaceutist, medical technician and maternity nurse. But unfortunately didn't specify those charges for nursing done by the professional nurse. Only basic nursing fee is accounted insufficiently in current medical insurance fee schedule. therefore, Being face with covering entire people by medical insurance by 1991, It seems that the problems pertaining to operating the hospital and medical insurance system would be incessantly expanded in that no mention is made of medical charges rendered by major medical producer service in the current system, For that reason, this study made an attempt to clarify the importance the professional nursing puts of the current medical payment. The purpose of this study was to accounting nursing fee which diveded into the current medical fee schedule. (Method) 1. Data collection; Importance and difficulties in nursing activities was conducted in 'S' National University Hospital. Total nursing activities were selected 72 items which included direct care and indirect care. This study was conducted to evaluating the degree of importance and difficulties according to nursing activities through questionnaire to 204 RN. and so relative difficulties (acuity) were computered because the nursing cost level of each nursing service was differently established by the equivalent coefficient according to degree of relative difficulty and time required. 2. Calculation of cost according to nursing activities; After 47 nursing activities were selected in General surgery nursing units, calculation of nursing cost was as follows Cost of Nursing activity = (relative difficulty X Average hourly wage and benefits of nurse) + material cost of nursing -t- Average nursing administration cost So, Calculated cost by nursing activities was compared to current non-insured and insurance rate. 3. Calculation of nursing cost by K - DRG ; Total of 578 patients who were hospitalized in General Surgery units from January to March 1988 ware classified by K - DRG After estimation of total nursing cost based on the K-DRG, verified the appropriateness of basic nursing fee in medical insurance rate (Results) 1. Analysis of degree of importance and difficulties were 4.16 and 3.67 based on 5 point scale. This score were judged that it is worthy specifying the nursing fee 2. The nursing cost of 47 nursing service items in general surgery patients showed that the average cost of nursing activity was \1374.5 and The lowest cost was \217 of 'oral administration nursing' item, The highest cost was \11,025 of 'saline enematill clear' item 3. The result of comparison between the calculated cost by nursing activities against the current non-insured and insurance rate showed that 13 items(27.7%) involved to payment of insurance rate, 9 items(19.1%) involved to non-insured rate, remainder 25 items (53.2%) were not charged anywhere of total 47 nursing activities 4. When calculated cost by nursing activities was 100. current insurance rate was 62.3, non-insured rate was 176.6. Therefore this showed that most of non-insured rate were higher than calculated nursing cost. The insurance rate, however, were lower than it. Reim-bursement was imputed to non-insured patients. So the current rate system became estrainged from cost system. When Remainder 25 items of nursing activities compared' to \1390 of daily basic nursing fee per patient belonged to payment as a insurance fee schedule, basic nursing fee schedule was 1-2% of calculated cost of nursing activities. Therefore it showed that nursing fee was not counted adequately in it. 5. Nursing cost by K-DRG estimated in chart review based on counting number of nursing activities and length of stay The result showed that average amount of total nursing cost was \183828.1 Comparison of nursing cost calculated by K- DRG and basic nursing fee schedule showed that only 12.3% of nursing cost was charged (Conclusion) From the above research result, It is fact that nursing prime cost should be estimated more accurately and included adequately in current medical payment system. The payment system of nursing activities should be introduced not only nursing activities of drug administration and injection fee belonged to insurance fee schedule but also most nursing activities belonged not to mekical fee schedule. Even if introducing payment system of nursing activities, It should be estimated scientific method of Accounting nursing cost So nurses could offer nursing care of good quality, thereby they could make a great contribution not merely to the convalescence of the patient but to the promotion of the people's health.

• 한국수자원학회논문집
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• 제53권2호
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• pp.89-96
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• 2020

환경부 산하 물관리 기관들은 주요 하천을 대상으로 양질의 기초 자료를 생산 및 축적하고 있다. 하지만 농경지를 많이 포함한 유역에서는 농업용수의 취수와 배수 등 인공적인 물의 순환 과정이 정량적으로 조사되지 못하고 있어 하천 수량의 통합적인 관리가 부진한 실정이다. 본 연구에서는 농업용수를 목적으로 하천변에서 취수되는 유량의 조사를 위해 사용되는 간접 유량 계측방법 중 가동시간에 따른 전력량법(가동시간법)을 적용 및 개선하여 저비용으로 높은 신뢰도의 결과자료를 얻을 수 있는 방법에 대한 연구를 수행하였다. 가동시간법은 실시간 전력량 자료의 확보가 어려운 소규모 양수장에 적용하기 적합하다. 실측 유량과의 상관성 분석을 통해 자료의 신뢰성을 검증한 결과, 양수장의 흡입구가 연결된 하천의 수위를 반영하여 가동시간법으로 산정한 유량은 실측 유량과 상당히 일치하는 결과를 얻을 수 있는 것으로 확인되었다. 또한 본 연구에서는 최초 설비 설치시에 대한 투자 비용을 직접 유량 계측방법들과의 비교를 통해 저비용으로 양질의 유량자료를 생성하여 높은 효율성을 가지는 것으로 확인하였다. 가동시간법을 하천변에 위치한 크고 작은 양수장에 적용하여 유량 자료를 확보한다면, 보다 정량적이고 통합적인 하천수 관리의 시행에 있어 많은 영향을 미칠 수 있을 것이다.

• 대한지역사회영양학회지
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• 제21권6호
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• pp.520-532
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• 2016

Objectives: The objective of this study was to assess energy expenditure and metabolic cost (METs) of walking activities of college students and to compare treadmill based walking with self-selected hallway walking. Methods: Thirty subjects (mean age $23.4{\pm}1.6years$) completed eight walking activities. Five treadmill walking activities (TW2.4, TW3.2, TW4.0, TW4.8, TW5.6) were followed by three self-selected hallway walking activities, namely, walk as if you were walking and talking with a friend: HWL (leisurely), walk as if you were hurrying across the street at a cross-walk: HWB (brisk) and walk as fast as you can but do not run: HWF (fast) were performed by each subject. Energy expenditure was measured using a portable metabolic system and accelerometers. Results: Except for HWF (fast) activity, energy expenditures of all other walking activities measured were higher in male than in female subjects. The lowest energy expenditure and METs were observed in TW2.4 ($3.65{\pm}0.84kcal/min$ and $2.88{\pm}0.26METs$ in male), HWL (leisurely) ($2.85{\pm}0.70kcal/min$ and $3.20{\pm}0.57METs$ in female), and the highest rates were observed in HWF (fast) ($7.72{\pm}2.81kcal/min$, $5.84{\pm}1.84METs$ in male, $6.65{\pm}1.57kcal/min$, $7.13{\pm}0.68METs$ in female). Regarding the comparison of treadmill-based walking activities and self-selected walking, the energy expenditure of HWL (leisurely) was not significantly different from that of TW2.4. In case of male, no significant difference was observed between energy costs of HWB (brisk), HWF (fast) and TW5.6 activities, whereas in female, energy expenditures during HWB (brisk) and HWF (fast) were significantly different from that of TW5.6. Conclusions: In this study, we observed that energy expenditure from self-selected walking activities of college students was comparable with treadmill-based activities at specific speeds. Our results suggested that a practicing leisurely or brisk walking for a minimum of 150 minutes per week by both male and female college students enable them to meet recommendations from the Physical activity guide for Koreans.