• 한국정보과학회논문지:시스템및이론
• /
• 제28권12호
• /
• pp.674-684
• /
• 2001

본 논문에서는 액세스 패턴의 반복성을 이용하여 비교적 적은 메모리 공간을 사용하는 SIC (SiZe-Interval-Count) 선반입 기법을 제안한다. 최근에 연구되어진 지식기반의 선반입 기법은 응용프로그램의 액세스를 예측하여 정확한 선반입을 수행하는 기법이다. 이들 기법은 응용프로그램의 액세스 패턴을 기록하고, 기록된 액세스 패턴정보를 이용하여 다음에 요청될 블록을 예측하게 된다. 하지만 이 기법은 많은 메모리 공간의 사용을 필요로 한다. 따라서 제안된 선반입 기법에서는 "SIC 액세스 패턴 정보"를 이용하여 반복적인 액세스 패턴을 효율적으로 저장하고, 이를 이용하여 응용프로그램의 다음에 요청될 블록을 정확하게 예측한다. 본 논문의 선반입 기법은 일반 파일시스템에 비해 최고 40%의 응답속도 향상을 가져오며, 기존의 지식기반 선반입 기법에 비해 뛰어난 메모리 효율성을 보여준다.

• 한국자원식물학회:학술대회논문집
• /
• 한국자원식물학회 2018년도 춘계학술발표회
• /
• pp.16-16
• /
• 2018

Flora investigations have been conducted by many researchers for a long time in Korea. Even though large amount of investigation data has been accumulated, there is no accurate statistics or database because most of data were published in a printed form. We developed a web-based database of flora investigation, named as the Integrated Korean Flora Database (http://www.floradb.net/) to understand distribution patterns and habitats of plants in Korea. Till now, 480 published paper, 356 thesis, 76 reports and books, and 8 unpublished papers written in between 1962 and 2017 were collected and their species lists from 280 papers were parsed into the database. From 124,105 records, 3,100 species belonging to 206 families and 965 genera were identified via comparing with two major Korean plant species lists. 55 endangered species, 159 endemic species, and 367 rare species were identified. The most frequently surveyed species were Commelina communis in herbaceous and Rosa multiflora in woody plants. Microclimate data provided by Korea Meteorological Administration were also integrated and analyzed to assign cold hardness zones for each species. By comparing minimum temperature (<2%) acquired from automated weather stations (AWS) near by plant species, 6a to 10b zones (7b is the most frequent zone) were identified. Integrated Korean Flora Database will be a fundamental platform of korea flora investigation as well as a new standard for classifying distribution of plants based on accurate microclimate data. Moreover, it can also provide evidences of investigated plant species, such as specimen and/or pictures with connecting to the InfoBoss Cyber Herbarium (http://herbarium.infoboss. co.kr/) and Biodiversity Observation Datbase (BODB; http://www.biodiversitydb.org/).

• 한국비블리아학회지
• /
• 제29권1호
• /
• pp.325-344
• /
• 2018

2000년 이후 국내 기관별 기록물 소장량의 지속적인 증가와 이에 대한 활용 요구가 증가하면서 기록물 기술 개선의 필요성이 제기되었다. 하지만 종이기록물에 대한 기술 개발 및 연구는 활발히 진행된 반면 영상기록물 기술 분야는 그 가치와 중요성은 인식되면서도 영상기록물의 다양성과 특수성으로 인해 전문적 기술 개발 및 연구가 미비하였다. 이에 본 연구에서는 영상기록물 기술의 개선 방향을 도출하기 위해 영상기록물 기술의 특수성 및 국내 영상기록물 기술현황, 해외 기록물 기술 사례 및 영상기록관리 전문가 대상 심층면담을 진행하였다. 이를 통해 영상기록물 정보 본질의 재규정 및 지속 연구, 디지로그적 관점의 영상기록물 기술 및 관리, 이용자 중심 기술 및 다양한 검색도구 개발, 연관정보 관리 강화로 영상기록물 가치창출, 영상기록물 생애주기를 관통하는 기술요소 관리 등의 개선 방향을 제안하였다.

• 한국임상약학회지
• /
• 제28권2호
• /
• pp.88-94
• /
• 2018

Background: We strived to evaluate the status of nivolumab use and associated factors on the clinical efficacy of the drug. Methods: The study was retrospectively conducted in patients who had been administered nivolumab at least once at the cancer center of Seoul National University Hospital from June 2015 to April 2017. Data were collected from electronic medical records. A medication-use evaluation was performed based on the American Society of Health-System Pharmacists mediation-use guidelines. Results: Sixty-six of the 74 patients (89.2%) showed indications approved for nivolumab use by the Korean Ministry of Food and Drug Safety (MFDS; n=55) or the US Food and Drug Administration (FDA; n=11). Approximately 73.0% of the patients were administered the approved dose of 3 mg/kg but 25.7% were administered an unapproved fixed dose of 100 mg. The overall response rate was 21.7%, and the response rate of non-small cell lung cancer patients, who accounted for the largest number of indications, was 18.8%. Adverse reactions were found in 90.1% of the patients and were mostly mild (86%). The expression of programmed death-ligand 1 (PD-L1) was analyzed as a factor affecting treatment response (p=0.028, odds ratio [OR]=11.331). Conclusion: PD-L1 expression was found to affect treatment response. However, caution is required while using an unapproved dosage and in the absence of monitoring for effectiveness and safety. Therefore, an effective protocol or instruction manual for the proper use of nivolumab should be considered.

• 지역사회간호학회지
• /
• 제7권1호
• /
• pp.5-17
• /
• 1996

The purpose of this study was to identify the differences of the outcomes of visiting nursing service (VNS) between the two types by the organizational structure of health centers. Type I referred to 3 health centers with departmentalization for VNS and type II of 3 health centers providing VNS under the subunit of a department. Data were collected from 38 visiting nurses at the six health centers for their perceived formalization, decision-making authority and job satisfaction, 293 clients for the satisfaction level with VNS served and their records analysis for level of quality care and frequency by the contents of VNS through the questionares during the period from June, 1 to August 30, 1993. Data were analyzed using $\chi^2$, F. t or/and Scheffe test. The result were as follows: 1) There were no significant differences in perceived formalization and decision -making authority of visiting nurses between the two types of health centers. 2) There were significant differences in the level of quality care and frequency of the VNS contents between the two types of health centers. 3) There were no significant differences in perceived clients' satisfaction and job satisfaction of the visting nurses between the two types of health centers. From this study, Not only organizational differentiation with the development of job standards and supportive system but also personnel development are suggested when new health care service in health centers begins.

• 한국보건간호학회지
• /
• 제18권1호
• /
• pp.178-186
• /
• 2004

The purpose of this study was to analyze the work of visiting health care providers in public health centers. A descriptive analysis of self-records for work data from 875 visiting health care providers working in 242 public health centers in South Korea was done. The results of the study are as follows: 1. The number of households for each visiting health care provider ranged from under 100 households to over 500 households. 2. Low performance was found for several items on the work list for visiting health care providers. 3. There were significant differences in the work performance of visiting health care providers between nurses and nursing assistants. 4. There were significant differences in the work performance of visiting health care providers according to region. In conclusion. work performance of visiting health care providers was low and differed according to type of occupation and region. This study suggest the need for further studies which analyse the quality of visiting health care providers and services, and the visiting health care system.

• Journal of the Korean Data and Information Science Society
• /
• 제26권6호
• /
• pp.1189-1198
• /
• 2015

글로벌 금융 위기 발생으로 헤지펀드의 영향력이 증가하면서 헤지펀드의 위험도와 생존여부를 가늠할 새로운 접근법이 필요하게 되었다. 본 연구에서는 헤지펀드의 데이터를 입력값으로 하는 퍼지신경망 모형을 통해 헤지펀드의 생존여부를 예측한다. 헤지펀드의 데이터는 그 변수가 불명확하고 내재적인 불확실성을 가지고 있어 생존 여부의 경계를 설정하는데 어려움이 있다. 따라서 생존 여부를 소속정도로 평가하여 불확실성을 모사할 수 있는 퍼지신경망 모형을 적용하여 예측하고 정확도를 평가한다. 또한 다른 인공지능 방법론들을 이용하여 평가한 결과와 제시한 모형의 성과를 비교하여 그 차이점을 확인한다. 본 연구의 실험결과를 통해 퍼지신경망 모형의 예측력을 확인했으며, 향후 투자자들이 헤지펀드 투자에 대한 의사를 결정하는데 도움을 줄 것으로 기대한다.

• 대한치과교정학회지
• /
• 제44권3호
• /
• pp.119-127
• /
• 2014

Objective: To evaluate the long-term effects of self-ligating brackets (SLBs) on transverse dimensions of arches and skeletal and soft tissues and to quantitatively evaluate the treatment outcome after non-extraction treatment with SLBs. Methods: The sample consisted of 24 (18 female and six male) subjects, with a mean age of $14.23{\pm}2.19$ years, who received treatment with the Damon$^{(R)}$3 appliances. Complete records including cephalometric radiographs and plaster models were obtained before treatment (T1), immediately after treatment (T2), six months after treatment (T3), and two years (T4) after treatment. Digital study models were generated. Twenty lateral cephalometric, six frontal cephalometric, and eight dental cast measurements were examined. The Peer Assessment Rating index was used to measure the treatment outcome. The Wilcoxon test was applied for statistical analysis of the changes. Results: There were significant increases in all transverse dental cast measurements with active treatment. There was some significant relapse in the long term, particularly in maxillary width (p < 0.05). Statistically significant increases were found in nasal (p < 0.001), maxillary base, upper molar, lower intercanine, and antigonial (p < 0.05) widths in T1-T2. Lower incisors were proclined and protruded in T1-T2. Conclusions: SLBs correct crowding by mechanisms involving incisor proclination and protrusion and expansion of the dental arches, without induction of clinically significant changes in hard and soft tissues of the face.

• The Journal of Advanced Prosthodontics
• /
• 제12권2호
• /
• pp.49-54
• /
• 2020

PURPOSE. The purpose of this study was to compare the performance of Accura to that of the T-scan for indicating occlusal contacts. MATERIALS AND METHODS. Twenty-four subjects were selected. Their maxillary dental casts were scanned with a model scanner. The Stereolithography files of the casts were positioned to align with the occlusal plane. Occlusal surfaces of every tooth were divided into three to six anatomic regions. T-scan and Accura recordings were made during two masticatory cycles. The T-scan and Accura images were captured at the maximum bite force and overlapped to the cast. Photographs of interocclusal records were used as the reference during overlap. The occlusal contacts were counted to compare the T-scan and Accura. McNemar's test was used for statistical significance and the corresponding P-values were calculated from a chi-square distribution with one degree of freedom. The accuracy, sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of Accura were calculated relative to the T-scan values as a control. RESULTS. No statistical differences (P>.05) were found between the T-scan and Accura methods. The accuracy of Accura was 75.8%, sensitivity was 82.1%, specificity was 60.1%, PPV was 82.9%, and NPV was 60.1%. CONCLUSION. Accura could be another possible option as a computerized occlusal analysis system for indicating occlusal contacts at maximum intercuspation.

• 한국직업건강간호학회지
• /
• 제18권1호
• /
• pp.5-13
• /
• 2009

Purpose: The purpose of the study is to investigate health problems of migrant workers in Korea. Methods: The data were collected from the records of the medical history of 2,233 migrant workers who visited the community health clinic in Ansan city, Gyeonggi province from Jan. 2005 to Jan. 2007. The data were analyzed by SPSS. Results: Men accounted for 56.4% of the total who participated in the study. Most of them were Chinese, Russian, and Bangladesh people. The 590 people out of all the migrant workers were employed in manufacturing industries and they comprised the largest percentage. The most commonly complained health problems were musculoskeletal (31.7%), digestive (20.7%), respiratory (12.5%), dermatologic (6.5%), cardiovascular (5.5%) and dental disorder (5.2%). The 1,853 (36.0%) workers were assumed to have hypertensive disorder and 1310 (11.1%) workers, some diseases due to high cholesterol level. Conclusions: It is necessary to establish a public health care system to improve health and welfare of migrant workers. Furthermore, the communities need to draw their attention to this matter. And it is also necessary to make accurate research on their health and medical service.