• 한국도로학회논문집
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• 제18권3호
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• pp.47-57
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• 2016

PURPOSES : This study aims to examine the differences between the existing traffic demand forecasting method and the traffic demand forecasting method considering future regional development plans and new road construction and expansion plans using a four-step traffic demand forecast for a more objective and sophisticated national highway maintenance. This study ultimately aims to present future pavement deterioration and budget forecasting planning based on the examination. METHODS : This study used the latest data offered by the Korea Transport Data Base (KTDB) as the basic data for demand forecast. The analysis scope was set using the Daejeon Metropolitan City's O/D and network data. This study used a traffic demand program called TransCad, and performed a traffic assignment by vehicle type through the application of a user equilibrium-based multi-class assignment technique. This study forecasted future traffic demand by verifying whether or not a realistic traffic pattern was expressed similarly by undertaking a calibration process. This study performed a life cycle cost analysis based on traffic using the forecasted future demand or existing past pattern, or by assuming the constant traffic demand. The maintenance criteria were decided according to equivalent single axle loads (ESAL). The maintenance period in the concerned section was calculated in this study. This study also computed the maintenance costs using a construction method by applying the maintenance criteria considering the ESAL. The road user costs were calculated by using the user cost calculation logic applied to the Korean Pavement Management System, which is the existing study outcome. RESULTS : This study ascertained that the increase and decrease of traffic occurred in the concerned section according to the future development plans. Furthermore, there were differences from demand forecasting that did not consider the development plans. Realistic and accurate demand forecasting supported an optimized decision making that efficiently assigns maintenance costs, and can be used as very important basic information for maintenance decision making. CONCLUSIONS : Therefore, decision making for a more efficient and sophisticated road management than the method assuming future traffic can be expected to be the same as the existing pattern or steady traffic demand. The reflection of a reliable forecasting of the future traffic demand to life cycle cost analysis (LCCA) can be a very vital factor because many studies are generally performed without considering the future traffic demand or with an analysis through setting a scenario upon LCCA within a pavement management system.

• 시큐리티연구
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• 제25호
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• pp.27-61
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• 2010

본 연구는 각국의 테러대응 시스템을 비교 분석함으로써 얻은 시사점을 바탕으로 현행 우리나라 테러대응 시스템의 효율화 방안을 모색하려는데 그 목적이 있다. 특히, 각국 테러대응 시스템의 체계적인 비교 분석을 위한 준거로 조직 기능적, 법률적, 대응 활동적 측면을 선정하여 연구함으로써 테러대응을 위한 각국의 제도적 정비를 모색하고 이를 통해 우리나라 테러대응 시스템의 문제점 및 운용을 파악하는데 주력하고자 하였다. 각국의 테러대응 시스템을 비교 분석한 결과, 우리나라의 테러대응 시스템은 조직 기능적 측면에 있어서 테러 대응을 위한 전담기구의 부재와 관계 기관들의 기능이 분산되어 있는 것으로 밝혀졌고, 법률적 측면에 있어서 '국가대테러활동지침'의 훈령으로 인하여 법적 근거로서 아무런 효력을 발휘하지 못하고 있으며, 대응 활동적 측면에 있어서 이러한 법적 근거의 부재로 인하여 테러의 예방과 대응을 위한 모든 활동 조치가 이루어지지 못하고 있는 것으로 나타났다. 따라서 본 연구에서는 이러한 미흡한 부분을 보완하였을 뿐만 아니라 향후 발생 가능한 테러에 효율적으로 대처할 수 있는 방안을 제시하였다. 첫째, 창발현상을 나타낼 수 있는 기능적 통합과 테러 관련 정보가 한 곳으로 집중되어 종합 분석될 수 있도록 정보 공유의 확대를 위한 통합형 테러대응 시스템을 구축해야 할 것이다. 둘째, 테러의 정의와 범위의 명확한 규정, 테러혐의자에 대한 감시 및 수사권 강화, 출입국 통제 강화, 테러자금의 차단 강화, 테러리스트의 처벌 규정 마련, 환경테러에 관한 규정, 피해 보전장치 등의 법률적 보완을 통한 상위법 체제가 확립되어야 할 것이다. 셋째, 중요시설 보호 강화와 테러안전의식 고취의 대민 홍보 교육을 위한 민 관 협력 시스템이 확대되어야 할 것이다. 넷째, 테러대응 관리의 효과를 극대화하기 위한 테러대응 단계별 상호연계성과 분권화된 비상대비 체제를 효율적으로 일원화하는 등 위기관리 시스템과의 연계성을 강화해야 할 것이다.

• 해양환경안전학회지
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• 제26권6호
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• pp.689-697
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• 2020

위험유해물질(HNS, Hazardous and Noxious Substances)은 해상운송 과정에서 다양한 사고에 노출되어 있어 많은 양이 바다에 유출될 우려가 있다. HNS 유출에 따른 해양환경의 손상은 유류 유출에 의한 손상보다도 훨씬 큰 것으로 알려져 있다. 특히 해저로 침강하여 침적되는 HNS는 해저생태계에 돌이키기 어려운 피해를 주게 되므로, 반드시 회수되어야 한다. 해저로부터 HNS를 회수하기 위해서는 해저침적 HNS에 대한 정확한 탐지, 안정화 처리 및 회수를 위한 절차와 장비가 필요하다. 그 중에서도 기계적 회수장치를 개발하기 위해서는 성능지표를 이용하여 성능요건을 선정하고, 이를 토대로 기계적 회수장치에 대한 개념설계가 이루어져야 한다. 따라서 본 연구에서는 해저침적 HNS의 회수 절차에서 요구되는 기계적 회수장치에 대한 개념설계안을 제시하였다. 개념설계안으로 해저침적 HNS를 회수하기 위한 기본 시나리오를 제시하고, 자체적 밀폐 성능을 가지는 흡인 기초를 활용하는 방안을 채택하였다. 기계적 회수장치는 흡인 기초, 오염 방지, 펌프 시스템, 제어 시스템, 모니터링 장비, 위치정보 장비, 이송 장비, 탱크로 구성된다. 이러한 개념설계안은 기계적 회수장치의 부품 및 형상을 결정하는 기본설계에 반영되어 활용될 것으로 기대된다.

• 한국정보과학회논문지:소프트웨어및응용
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• 제30권3_4호
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• pp.212-218
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• 2003

상태 불변식은 도달 가능한 모든 상태에서 만족되는 속성이다. 불변식은 복잡한 소프트웨어 시스템의 분석과 이해에 사용될 뿐만 아니라 안전성, 궁극성, 일관성 등과 같은 시스템 검증에도 사용된다. 이와 같은 이유로 인해서, 유한 상태 기계 모델로부터 상태 불변식을 추출하는 연구가 활발히 진행되고 있다. 상태 불변식을 생성하는 기존 연구에서는 도달 가능한 상태가 모두 고려됐다. 따라서 생성된 상태 불변식은 길고 복잡해서, 사용자가 이해하기 어려웠다. 본 논문에서는 '어떻게 상태 불변식을 단순화 할 것인가\ulcorner` 란 질문에 대한 답을 보인다. 상태 불변식의 복잡성은 고려되어진 상태의 크기에 강하게 좌우된다. 고려된 상태들이 작으면 작을수록, 상태 불변식의 길이는 짧다. 단순한 상태 불변식을 생성하기 위해서는, 전체 상태 공간보다는 관심 있는 특정 부분(즉 범위)에 집중해야 한다. 관심 있는 범위를 표현하기 위하여 본 논문에서는 CTL 논리를 사용한다. CTL로 범위가 표현되면, 혼합 도달성 분석을 이용하여 범위 내에 속하는 상태들을 찾는다. 명백히, 이 방법으로 계산된 상태 집합은 도달 가능한 모든 상태의 부분 집합이다. 따라서, 더 약하지만 더 이해력 있는 상태 불변식을 얻는다.

• 한국임상수의학회지
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• 제33권4호
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• pp.234-236
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• 2016

A 14 kg, 9-year-old, spayed female, Cocker Spaniel was presented to the Veterinary Medical Teaching Hospital of Seoul National University with a history of head tilt and circling. Otitis externa and media were diagnosed by computerized tomography, and total ear canal ablation was performed. In preanesthetic evaluation, systemic hypertension and second-degree atrioventricular block were observed, but there was no regurgitation through the heart valves. Systemic hypertension was managed with amlodipine (0.1 mg/kg, PO, BID) for the anesthesia. The dog was premedicated with cefazolin (22 mg/kg, IV) and midazolam (0.2 mg/kg, IV). Anesthesia was induced with alfaxalone (2 mg/kg, IV) and maintained with isoflurane and 100% oxygen following intubation. During surgery, vital signs (heart rate, respiratory rate, blood pressure, end tidal carbon dioxide partial pressure and body temperature) were maintained within normal ranges, but bradycardia was observed and corrected with glycopyrrolate (5 ug/kg IV, twice). During subcuticular suture, electrohemostasis was applied at the incision line, which was close to the trigeminal nerve. In no time at all, heart rate dramatically decreased from 110 to 60 beats per minute. No additional treatment was done because mean blood pressure was maintained above 70 mmHg. The heart rate recovered according to the decrease of end tidal isoflurane concentration and there were no complications associated with the anesthesia and surgery. Sudden bradycardia after electrical stimulation around the trigeminal nerve was considered as trigeminocardiac reflex (TCR). It is recommended to be careful of bradycardia from TCR when electrocautery is used in the craniofacial area during surgery.

• Journal of Forest and Environmental Science
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• 제33권3호
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• pp.202-225
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• 2017

Non Timber Forest Products (NTFPs) has gained a lot of significance over the years as a means of income generation. Forests are playing a vital role in the supply of these products, however, due to their continuous extraction, the population of many species might have depleted. Very little information is known about community structure and population status of NTFPs. No specific studies have been made to find out the occurrence, availability of species and population status in the forests, supplying the resources. The present study has been carried out in community forests of the naturally occurring NTFPs in the temperate forest of the Ziro valley of Arunachal Pradesh. The main aim is to determine community structure, species composition and population status of NTFPs. Three forest stands viz., Nyilii, Dura and Gyachi were selected which are used by the Apatani tribe for extraction of the NTFPs. For evaluation of species composition and community characteristics, the sampling of the vegetation was done using the quadrat method. A total 137 species representing 68 families and 116 genera were recorded. Herbs represent the maximum diversity with 71 species followed by 35 shrub species and 31 tree species. The families Asteraceae and Rosaceaeae exhibited maximum representation followed by Urticaceae. The species under Fagaceae, Lauraceae, Rosaceae and Rutaceae were found to be important NTFP yielding species. Highest species richness was recorded in Nyilii having 124 species, while lowest in Dura with 102 species. Density of tree, shrub and herb ranged between 376 to $456\;individuals\;ha^{-1}$, 2848 to $3696\;individuals\;ha^{-1}$ and 31.44 to $36.64\;individuals\;m^{-2}$, respectively. The total basal area was found to be highest ($51.64m^2\;ha^{-1}$) in Dura followed by Nyilii ($25.32m^2\;ha^{-1}$) and lowest in Gyachi ($22.82m^2\;ha^{-1}$). In all the three study stands the species diversity indices showed the trend, herbs > shrubs > trees while the evenness index showed the trend as shrubs > herbs > trees. The overall species similarity index was highest (82.35%) between Dura and Gyachi. About 80% of the total recorded species showed clumped distribution while, no regular distribution was shown by any species. The three selected stands harbor about 50 important NTFP yielding species which are being used commonly by the Apatani people in their day to day life. Among the three study sites, overall diversity of NTFP was found highest in the Nyilii stand while the density of population was found better in Dura and Gyachi stands. The population of many species was found to be low due to continue harvesting without any sustainable management by the communities. All the selected forest stands have the potentiality to grow the high value NTFP yielding species and if managed properly, they can support the livelihood and economy of the local communities.

• 가정과삶의질연구
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• 제30권2호
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• pp.137-152
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• 2012

The graying of populations is emerging as an international issue around the world, and this is a problem that is rapidly advancing in Korea as well, signaling the need for financial preparations for the aged. For this purpose, various retirement pension systems are being employed as preparatory measures for the nation's elderly. Using data from 1474 people in the 2007 panel study of National Security for the Retired, the present work attempts to look at satisfaction rates with regard to public pension receipts for the national pension and special occupational pensions according to general characteristics and factors related to the preparation for an aging society. Satisfaction with retirement pension receipts according to the type of pension was high for special occupation retirement pensions, individual retirement pensions and the national retirement pension, in that order. Looking at satisfaction rates based on the general characteristics of pension recipients, the study revealed that for the national pension, satisfaction was highest for groups with above-average physical and psychological health, groups who think appropriate living expenses for the elderly are lower, groups in which a partner also earns income, and groups who had amply prepared for their expected living expenses in later life. Regarding special occupation retirement pensions, satisfaction was high for groups over the age of 70, groups with good psychological health, and groups sufficiently prepared for their living expenses in later expenses, compared to groups for which these factors did not apply. In terms of the relative influences impacting retirement pension recipient satisfaction, satisfaction with the national pension was highest when the primary source to cover elderly living expenses was a resource other than income earned by the recipient and their partner and/or income received from children. Concerning special occupation retirement pensions, satisfaction was highest among those whose education terminated before middle school, and for those in good physical health. Based on the above results, it is vital that plans exist for preparing sufficiently for the living expenses of the elderly and for facilitating the physical and psychological health of pension recipients. Plans are also necessary to, ensure that citizens are provided with easily accessible educational programs and activities regarding general installment savings and deposits, stocks and bonds, real estate investments, individual retirement pensions, private insurance, severance pay pensions, and public pensions.

• 대한간호학회지
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• 제27권3호
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• pp.627-638
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• 1997

Most patients having leukemia suffer severely from emotional turmoil due to the generalized perception that cancer will be fatal. The conventional chemotherapy results in side effects such as severe bone marrow depression which interfere with self-care management, vital for improvement in their condition. Bandura's theory of the self-efficacy suggests that self- efficacy can be enforced by performance attainments, vicarious experiences, verbal per-suasion and the release of emotional arousal. Self-efficacy can be enforced by a program of vicarious experiences and verbal persuasion, while the emotional arousal can be relieved through a hope promotion program, If once self-efficacy increases, the patient's self-care behaviors and the quality of life will also increase. The purpose of this study was to empirically test the effects of a program, to promote self-efficacy and hope, on self-care behaviors and quality of life in patients having leukemia. In this study, three types of approaches to enhance self-efficacy and hope were used : 1) a 20-minute long slide /tape for vacarious experiences : 2) a 10-minute long telephone call coaching for verbal persuasion ; and 3) two booklets for information about the symptoms of leukemia and treatment modalities and hope promotion. Thirty one patients were recruited in the experimental group and 29 in the control group with a nonequivalent pretest-posttest design. The subjects were patients with leukemia undergoing chemotherapy. Sherer and Maddux's self-efficacy scale, Nowotny's hope scale, and Padilla's quality of life scale were employed with some modifications. A self-care behavior scale was developed by the researchers. Statistical analyses including paired t-test, Chi-square, ANCOVA and ANOVA, were used. The results are as follows : The levels of self-efficacy, self-care behavior and quality of life were higher in the experimental group than in the control group after four weeks of intervention(F=28.71, P=.0001 ; F=63.35, P=.0001 F=16.57, P=.0001). After ten weeks of intervention, all of the dependent variables(self-efficacy, self-care behavior, hope & quality of life) in the experimental group were higher than in the control group (F=74.12, P=.0001 ; F=108.34, P=.0001 ; F=13,11, P=.001 : F=43.52, P=.0001). In conclusion, self-care behavior and quality of life increased mainly through an increase in self-efficacy, while increases in hope took more time and effort.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2005년도 춘계학술대회 논문집
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• pp.245-251
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• 2005

연안 및 항만시설물의 설계에서 심해 설계파 및 풍속은 매우 중요한 설계 파라메타이다. 특히, 최근 부각되고 있는 방재공학 측면에서 이러한 정보에 대한 분석단계는 필수적이라 할 수 있다. 본 연구에서는 완도관측소의 기상연보에서 제시한 1978년부터 2003년까지의 풍속자료와 한국해양연구원 파랑정보시스템에서 제공하는 16방향별 최대 유의파 산출자료를 이용하여 극치분석을 수행하였다. 특성분석에 사용된 극치분포함수는 Weibull, Gumbel, Log-Pearson Type-III, Normal, Lognormal, Gamma 분포이며, 각 분포함수의 매개변수는 모멘트법, 최우도법 그리고 확률 가중 모멘트법으로 추정하였다. 또한, 극치분포함수의 적함성은 5${\%}$의 유의수준 즉, 95${\%}$신뢰도 수준으로 $x^{2}$및 K-S 검정을 실시하였다. 그 결과, 한국 남서연안의 심해 설계파고는 Gumbel 분포형이 가장 적합한 모형으로 파악되었으나, 본 연구의 대상영역에 적합한 모형은 각각의 극치자료에 따라 선정된 확률분포에 의해 다르게 나타났다.

• 한국병원경영학회지
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• 제23권1호
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• pp.78-86
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• 2018

Purposes: This study identifies local Chinese consumers' standard for selecting medical care provider and their standard for choosing medical staff, as well as their expectations and concerns regarding Korean medical care providers. Methodology: A survey was conducted in China, to identify Chinese medical care consumers' standards for selecting a medical provider and the factors that influence their use of general hospitals. A total of 1,500 people across three cities, between the ages 18 and 60 participated in the survey. Moreover, a multiple logistic regression analysis was used to analyze the factors that affect Chinese medical care consumers' use of general hospitals. Findings: A total of 75.5 percent respondents chose general hospitals as their most frequently-used medical provider. Those who have health insurance, visit general hospitals as outpatients or are hospitalized more frequently than those who do not have a health insurance. Furthermore, those who have private insurance visit general hospitals as outpatients or are hospitalized more frequently than those who are not signed up for private insurance. Major standards for selecting a hospital included: the doctor's skills, word-of-mouth regarding the hospital, and distance to the hospital from the respondents' home. Standards for choosing medical personnel included word-of-mouth regarding the medical team, recommendations from family members or acquaintances, and medical team's notoriety. Friends and neighbors, family members, television and other media outlets were the channels for acquiring information on a hospital. It was found that Chinese people mostly visit the cardiovascular department of Korean hospitals for treatment. For using Korean hospitals in China, the majority of respondents answered that they were concerned about the cost. Practical Implications: Backed by highly skilled medical experts and cutting-edge technology, Korean medical care providers are attempting to enter China's medical care market. To succeed in China's medical care market, it is vital to conduct a clear and precise analysis.