• East Asian Economic Review
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• 제22권3호
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• pp.275-306
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• 2018

Amid a general rise in protectionism and a trade war between the world's two largest economies, this paper analyzes changes in gains from trade for the world over a decade marked by rapid global economic integration preceding the global financial crisis of 2007-08. It employs state-of-the-art quantitative trade models based on the gravity equation to estimate autarky gains from trade, as well as a recently introduced ANOVA-type structural estimation of the gravity equation to obtain trade costs free of residual trade cost bias. Between 1995 and 2006, the cost of moving to autarky increased by about 45% on average. A decomposition exercise suggests most of the increase in autarky gains from trade on average was due to increases in import shares in total spending, with a limited role for reallocations of spending across sectors with varied trade elasticities. Changes in trade costs between 1995 and 2006 are found to have increased autarky gains from trade, as measured in 2006, by up to 100%.

• 한국산림과학회지
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• 제98권4호
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• pp.504-511
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• 2009

본 연구는 밤나무 재배의 생산비를 파악하기 위해 밤나무 재배농가 227농가를 대상으로 조사하였으며 분석 결과는 다음과 같다. 국내 밤나무 재배 전업농가는 평균 5.5 ha의 면적을 재배하고 있었으며, ha당 1.6톤의 밤을 생산하고 있었다. 밤의 판매는 농협과 수집상에 73%이상을 판매하고 있었으며, 품등별 생산비중은 특대립과실 18%, 대립과실 49%, 중립과실 25%, 소립과실 8%로 나타났다. 밤 재배농가의 연간 조수입은 지역마다 상당한 차이를 나타내고 있었으나 전체 평균으로 볼 때, ha당 2,103천원의 조수입을 얻어 경영비로 66.4%를 지출하고 706천원의 농가소득을 올려 33.6%의 소득률을 나타내었다. 지역별 생산비 특성을 보면, 충남지역은 저수고 재배와 노동집약형 재배를 통해 품등이 높은 밤을 생산하여 ha당 평균 2,161천원의 높은 소득을 올렸으나 전남과 경남지역에서는 밤나무 노령화의 영향으로 경영비 투입비중이 낮아 생산성이 크게 떨어지는 특성을 나타냈다.

• 정보관리학회지
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• 제8권2호
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• pp.74-95
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• 1991

이 연구는 과학적 질문과 연구 방법에 대한 특징과 기능을 제시하기 위한 것으로 도서관학과 학생 한 명의 교육 비용과 이에 영향을 미치는 용소를 사회 과학적 통계 방법으 로 분석하고 해석하였다. 분석을 위한 변수로서 학생 한명의 4년간 교육 비용, 도서관 및 정 보 관련 업무분야에서의 취업률, 년간 봉급과 학교의 종류(사립, 공립)를 사용하였고, 추론적 통계 방법으로는 t-test, 상관 분석과 회귀 분석을 적용 하였다.

• 한국안전학회지
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• 제11권1호
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• pp.99-107
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• 1996

This survey is to compare the the number of accidents which were occurred in 24 construction companies with the average accident in construction industry. The number of accidents in 24 companiesis is lower than the average accident, then it is classified "save", otherwise it is classified "loss". This survey is conducted to have top management be interested and invest for safety by recognizing that safety management could be profit for the company. The result of this survey is as follows : The total save amount in 1992 is 44,780mi11ion Won and average is 1,870mi11ion Won, with being 11, 200mi11ion Won by reduction amount of deaths and 33,580mi11ion Won by reduction amount of injuries. In 1993 the total is 33,330mi11ion Won and average is 1,390mi11ion Won, and in 1994 the total is 38, 720mi11ion Won and the average is 1,610mi11ion Won. This result is save amount of workmen's compensation insurance with excluding the indirect costs for accidents. The company which ranked the highest save amount is B Construction Company with being 15.1 billion Won and the next is A Construction Company during 3 years. The Company which ranked highest percentage of save amount to sales amount is Q Heavy industry with being 0.359% and the next is B Construction Company during 3 years.pany during 3 years.

• 대한간호학회지
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• 제10권1호
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• pp.41-55
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• 1980

The medical care insurance system, being put into practice nearly for three years, seem to have brought about some considerable problems as serious for the government as to consider a revision of that system. As one of the most serious problems of present system, the treatment cost of insurance patients is so remarkably low in comparison with than of non-insurance cases that normal operation of hospitals is threatened and care services of low quality are induced. The researcher carried out this survey to analyze and bring to light several aspects of treatment cost of non-insurance patients as a material for a re-assessment of the cost of insurance cases which shows a a considerable difference in amount at the standpoint of hospitals with than of non-insurance cases and further, hoping the significant blind spot of present insurance system(that is, the absence of regulations' for cost assessment by patterns or types of health care treatment) will be mended in near future. The survey was carried out with the treatment invoice sheets of total 902 in-hospital Patients of a general hospital in Seoul during the period of the 2 nd quarter of the year(1979). Among total 902 patients, 694 cases were used for analysis, because those disease or syndromes shared by less than 10% of the patients were put aside before procession. The data were analyzed by kinds or types of diseases, demographic characteristics of patients, hospitalization patterns, types of nursing treatment, etc. The result of analysis was as follows 1. Among all the non-insurance cases, those who received one or more kinds of nursing treatment mounted up to 96. 7 ％. The invoice issue frequency per person was 7.2 times, while that frequency per day for a person was 0.8, : the treatment cosr per person was ￦22,650 while its daily average was ￦2,430, due to the average 9.3 in-hospital days per person. 2. As to the nursing treatment types by the demographic characteristics of patients and hospitalization patterns. a. The unit cost female patients was generally more expensive them that of males, and independent nursing service was more given than other types of treatment. As to age, higher age groups received independent nursing service most, while the youngest group received instrumental and integrated nursing services. b. As to room grade, the unit cost of I.C.U. cases was the highest : and the cast of private room patients was higher than that of public room patients. By in-hospital days, the curve of function showed L. type : that is, the longer stay, the lower function. 3. State of treatment types by kinds of disease were ; a. Dependent nursing service showed comparatively high availability in surgical and neurologic disease and independent nursing service was most received by medical, obstetrical and urological patients, while instrumental and integrated services were most available for respiratory disease and obstetrical and neurologic diseases next. b. The invoice issue frequency per day for a patient was highest in obstetrical disease 3.8 times, and the unit cost(per one invoice sheet) was also highest in obstertrical disease(￦10,880) and next in neurologic cases(￦ 4,690 ). 4. As to the pertained departments. a. Cost amount per person was highest in department of Psychiatries daily cost was highest in obstetrical cases : while the invoice issue frequency was highest in obstetrics and next in pediatrics. b. In departments in need of surgical operation, dependent nursing care was highly availabl : while in internal medicine and obstetrics, independent service was higher. Psychiatrics showed the highest the of integrate nursing while pediatrics and obstetrics higher of instrumental services. The variation co-efficien of treatment cost came out to be relatively in high in special surgery, opthalmology and internal medicine. 5. State of treatment cost by types of nursing behavior was. a. The average frequency of invoice issue was 3.5 (times). Among the type four types of treatment, instrumetal service (4.3) and independent nursing behavior(3.9) showed higher frequency than average respectively. But as to unit cost (per invoice). dependent (￦5,200) and integrated (￦5,340) nursing care services were higher than average and considerably higher than the other two types. b. In repect patient distribution. independent nursing behavior(80.3% ) was the highest and depend ent nursing (31.7% ) the lowest. The variation co-efficient of treatment cost appeared highest in dependent nursing be havior as a whole, and among that, doctor's diagnosis showed the highest coefficient value (100.7). In conclusion, the variaty of treatment cost(treatment itself ) by various characteristics and treatment types pro- that treatment various sort of patients and treatment cost of various types of nursing behavior cannot be uniform. Therefore, to attain the equalization of health care service and its cost both for insurant and non-insurant patients, a more specific provision for assessment of cost should be added to the present medical care insurance system and, in addition, the cost of nursing treatment is desired to be inserted into the treatment invoice.

• Journal of Biosystems Engineering
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• 제4권1호
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• pp.67-74
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• 1979

This survey was carried out to grasp the actual condition of a power tiller utilization . Now, the power tiller has become the leading machinery in the field of agriculture throughout the country . Two hundred farm houses, located in the provincial districts of Kimcheon and kum0rung, hav etaken part in the survey from October 1, 1976 to September 30, 1977. The results are summarized as follows . 1. The average size of cultivated land of a farm household in the districts surveyed was 1.77ha which was bigger than that of whole country. And the average age of power tiller drivers was analyzed in which only 105 of total drivers was on their 30's. 2. Distribution of a power tiller utilization was appeared to be 34.4% for transporting , 24% for tilling , 23% for pumping , 11.5% for threshing and 6.6% for spraying. 3. Frequency of a power tiller utilization was high during the month of June, July and October while it was low during February and December . 4. Distribution of repairing cost was 8.5% for trailer, 7.1% for throttle lever and 6.7% for casket, respectively. The annual cost for repairing was 5,290 won.5. The annual cost for using a power tiller was composed of 51.5% of fixed cost and 48.5% of operating cost. 6. Economic analysis showed that it was not economically practical for individual ownership of a power tiller on the farm surveyed. Therefore, custom operation and joint ownership by a few farmers were recommended.

• 한국콘텐츠학회논문지
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• 제14권11호
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• pp.102-110
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• 2014

본 연구는 공연여건의 성장에 걸 맞는 투자시스템으로의 변화를 모색하는 데 있다. 특히, 제작사들이 원하는 장기공연이나 오픈런 방식으로 공연여건이 조성되고 있는 상황에서 연장공연 여부를 신속히 판단할 수 있고, 제작자와 투자자 양자가 만족할 수 있는 미국식 예산수립 방식으로의 변화모색이 필요한 시점이다. 이에 구체적으로 3가지 방안을 제시하였다. 첫째, 연장공연이나 재공연 여부를 보다 정확히 판단하기 위해서는 현재와 같이 평균비용(Average Cost)을 산출하여 평균수입과 비교하기보다는 미국과 같이 한계비용(Marginal Cost)을 산출해서 비교해야 할 것이다. 둘째, 수익배분에 대한 불합리성을 극복하기 위해서는 현재와 같이 총제작비를 투자모수로 삼기보다는 미국과 같이 총제작비에서 운영비용(Operating Cost)을 제외한 프로덕션비용(Production Cost)만을 투자모수로 삼아야한다. 셋째, 앞서 언급한 한계비용의 산출과 프로덕션비용의 산출을 위해서는 미국 지출예산(Expense Budget)의 이원화 작성법의 국내 적용이 필요하겠다.

• Journal of Preventive Medicine and Public Health
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• 제29권2호
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• pp.347-357
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• 1996

Although occupational low back pain accounts for $20\sim40%$ of all occupational illness and injury, there are limited numbers of studies regarding the effectiveness of back school program. The objective of this study was to evaluate the economic benefit of back school program for early return to work of occupational low back pain patients in the current occupational injury compensation and management system. The cost-benefit analysis in this study was conducted to evaluate the relative magnitude of benefit to cost. The total cost was estimated by calculating the value of components in back school program according to governmental budget protocol. The back school program was consisted of three major approaches, pain center, work-hardening program and funcional restoration program and each of components had various facilities and experts. The total amount of cost was estimated as 250,866,220 won per year. The most promising type of back school program were quite intensive (a 3 to 5-week stay in a specialized center), therefore, if we adopted the 5-week stay course, 10 courses could be held in a year. Following to the medical act, 20 patients per doctor could participate in a each course, ie, total 200 patients in a year. As a result, we could estimate the cost of 1,254,331 won a patient. We estimated the benefit by using data of a few local labor offices about average medical treatment beneficiary and off-duty beneficiary of 46 occupational low back pain patients in 1994. Ullman and Larsson (1977) mentioned that the group of chronic low back pain patients who participated in back school program needed less time to recover by 48.4% of beneficiary duration. And in the trying to estimate the benefit, we asked 10 rehabilitation board certificate doctors about reduction proportion of treatment cost by introducing back school program. The answered reduction proportions were in the range of $30\sim45%$, average 39%. As a final result, we could see that the introduction of back school program in treatment of chronic occupational low back pain patients could produce the benefit to cost ratio as 3.90 and 6.28. And we could conclude that the introduction of back school program was beneficial to current occupational injury compensation and management system.

• 센서학회지
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• 제30권5호
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• pp.290-294
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• 2021

Experts have designed popular and successful model architectures, which, however, were not the optimal option for different scenarios. Despite the remarkable performances achieved by deep neural networks, manually designed networks for classification tasks are the backbone of object detection. One major challenge is the ImageNet pre-training of the search space representation; moreover, the searched network incurs huge computational cost. Therefore, to overcome the obstacle of the pre-training process, we introduce a network adaptation technique using a pre-trained backbone model tested on ImageNet. The adaptation method can efficiently adapt the manually designed network on ImageNet to the new object-detection task. Neural architecture search (NAS) is adopted to adapt the architecture of the network. The adaptation is conducted on the MobileNetV2 network. The proposed NAS is tested using SSDLite detector. The results demonstrate increased performance compared to existing network architecture in terms of search cost, total number of adder arithmetics (Madds), and mean Average Precision(mAP). The total computational cost of the proposed NAS is much less than that of the State Of The Art (SOTA) NAS method.

• 대한환경공학회지
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• 제36권7호
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• pp.483-491
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• 2014

본 연구에서는 강화된 TP 처리를 위해, 처리해야 할 인 농도에 대한 응집제 최적 주입 비율을 보다 손쉽게 결정하고 조절할 수 있는 실시간 자동제어가 가능한 응집제 주입량 최적제어 시스템(M-COS)을 구성하였으며, 실제 하수처리장 현장실험을 통하여 유량과 수질 변동에 따른 현장 적용성을 검토하였다. 현장적용은 1월말(Period 1), 4월초(Period 2), 5월 중순(Period 3)의 각 시기에 M-COS가 설치된 pilot plant에서 운전?평가되었다. 그 결과, 수질에 따른 능동적 대처가 가능한 M-COS에 비해 대조군의 경우 과량으로 주입된 경우가 많이 발생하여, M-COS에 의한 응집제 절감률은 각 기간 동안 10.4%, 15.3%, 9.0%로 평균 11.6%가 절감되는 것으로 평가되었다. 또한, 응집제 주입에 따른 구입비, 슬러지 발생량, 슬러지 처리비용, 처리용량($1,000,000m^3/d$)을 반영한 처리비용 증가액을 예측하였다. 예측된 M-COS 실험군의 처리비용 증가액은 대조군 대비 각각 13.8%, 20.0%, 11.4%로 평균 15.0%의 비용절감 효과가 나타나, 현장적용이 가능함을 판단할 수 있었다.