자기회귀 잡음모델을 가진 플랜트의 일반화 최소분산제어

박정일(Jung Il Park),최계근(Keh Kun Choi) 제어로봇시스템학회 1986 제어로봇시스템학회 국내학술대회 논문집 Vol.1 No.10

TMN을 이용한 통합망 성능관리와 QoS 정보 모델 설계

박석천(Seok Cheon Park),박석원(Seok Won Park),정영호(Young Ho Jung),한기호(Ki Ho Han),양용석(Yong Seok Yang),정일(Il Jung) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.1A

통신망이 다양화되고 이질화됨에 따라 망을 효과적으로 관리하기 위한 TMN(Telecommunication Management Network)개념이 등장하게 되었고, 관리 대상이 실자원이나 시스템, 소프트웨어 등에 국한 된게 아니라 서비스 영역으로 확대됨에 따라 이 서비스 영역의 관리가 필요하게 되었다. 따라서 본 논문에서는 통합망의 성능과 서비스 관리를 위한 정보 모델을 설계 하기위해 기본적인 TMN 구조와 성능관리, QoS관리를 분석하였다. 그리고 객체지향적인 개념이 적용된 TMN 정보구조 중 관리자/대행자 구조에서 관리정보의 전달 수단인 MO(Managed Object)를 정의하고, MO 클래스들을 GDMO에 따라 표현하였으며, 정의된 MO에 따라 상속트리 및 포함트리를 설계 하였고, E-R 도표를 통해 정의된 객체 클래스들의 관계를 명시하였다.

무인비행기의 활용분야 및 사례

박정일(Jung Il Park),이문석(Mun Seok Lee) 한국BIM학회 2016 KIBIM Magazine Vol.6 No.3

日本の大正期に於ける女性誌の誌名の研究

朴正一(Park Jung-Il) 동북아시아문화학회 2009 동북아 문화연구 Vol.1 No.21

As a result of having considered the magazine name of the women's magazine of Taisho period, I was able to discover various characteristics. For example. There is overwhelmingly much use of the kanji word with 98 examples (68%) by the magazine name. Meanwhile, there is the use of the katakana word of foreign origin for letter notation such as "woman thyme", and I diversify lexically, and there being it is thought about with influence by the character of the Taisho democracy. In addition, as for the factor that accelerated the birth of the girl magazine, that interest for the home training rose that woman education was begun is raised on a national scale. The example only for an example has sum total 109 examples (75%), and there is variety of the magazine name. I understand that the magazine name which is the symbol of the women's magazine has been regarded as important by state of things. Many magazines were launched for Taisho period, and it was ceased to publish again. A new magazine name appeared in the degree, but thinks the magazine name to be have been reflection of the times of the Taisho democracy. The figure which finished a new Japanese image for women reflected it conspicuously in the world of the women's magazine.

KOSPI 개별기업들의 환노출과 금리노출

박정일 ( Jung Il Park ),장병기 ( Byoung Ky Chang ) 한국경제통상학회(구 한국경상학회,한국국민경제학회) 2013 경제연구 Vol.31 No.2

본 연구는 환노출퍼즐에 대한 재고찰과 함께 금리노출을 분석하기 위하여 OLS, EGARCH-M-GED, 지연효과를 고려한 EGARCH-M-GED 등 3가지 모형을 이용하여 환노출과 금리노출을 추정하였다. 또한 환노출과 금리노출의 영향요인을 확인하기 위하여 기존 연구에서 흔히 사용한 2단계 추정법 외에도 System SUR를 적용하여 비교분석하였다. 분석결과에 따르면 외환위기 이후에 환노출 기업 및 금리노출 기업의 수가 상당히 증가하였으며 외환위기 전에는 양의 환노출 기업이 많았으나 외환위기 이후에는 음의 환노출 기업이 압도적으로 많아졌다. 외환위기 이전에는 수출비중이 환노출 계수와 무관하였으나 외환위기 이후에는 수출비중이 환노출 계수에 유의한 정(+)의 영향을 주었다. 한편, 외환위기 이전에는 부채비율이 금리노출계수와 무관하였으나 외환위기 이후에는 부채비율이 금리노출계수에 유의한 부(-)의 영향을 주는 것으로 나타났다. 이는 외환위기 이후 주식시장이 보다 정보 효율적으로 바뀌었기 때문일 것이다 The main purpose of this study is to identify the exchange rate exposure and interest rate exposure of KOSPI firms and analyze the effect factors of the exposures. To investigate the exposures OLS, EGARCH-M-GED, and EGARCH-M-GED with delay effect were employed. In the meantime, for an analysis of effect factors, System SUR method as well as 2-step method was performed. We find that the number of the firms with exchange rate exposure and interest rate exposure greatly increased after the Korean financial crisis. Futhermore, in the case of exchange rate exposure, its influence changed from a positive to a negative after the Korean financial crisis. In the case of the influence of export share on exchange rate exposure and of debt ratio on interest rate exposure, there were no significant results in the period before the Korea financial crisis, but most models showed significant results in the period after the Korean financial crisis. This means that the market reflects microscopic information more efficiently after the crisis

소아 복합부위통증증후근 환자에서 경부와 흉부 척수 자극술 -증례보고-

박정주 ( Jung Ju Park ),문동언 ( Dong Eon Moon ),박승재 ( Seung Jae Park ),최정일 ( Jeong Il Choi ),심재철 ( Jae Chol Shim ) 대한통증학회 2007 The Korean Journal of Pain Vol.20 No.1

지그비 기반의 실시간 무선 네트워크 모터 제어시스템

박정일,Park, Jung-Il 대한임베디드공학회 2020 대한임베디드공학회논문지 Vol.15 No.2

This paper finds solutions for using ZigBee in wireless networked control system (WNCS). The round trip time delay and packet loss rate of the WNCS are measured. On the basis of these measured data, a playback buffer is used to solve the variable time delay in WNCS, and a Smith predictor is introduced to compensate for the time delay. The WNCS was able to be actually constructed to perform DC motor position control with 40 Hz sampling frequency.

백내장 수술 후 예상시력에 대한 망막시력계의 정확성 및 유의성

박정일,오세훈,김진형,문상웅,이도형.Jung Il Park. M.D.. Sae Hoon Oh. M.D.. Jin Hyung Kim. M.D.. Sang Woong Moon. M.D.. Do Hyung Lee. M.D. 대한안과학회 2007 대한안과학회지 Vol.48 No.7

Purpose: To investigate the accuracy and usefulness of the retinal acuity meter (RAM) in predicting visual acuity after cataract surgery. Methods: We randomly selected 47 eyes from 43 patients who underwent cataract surgery in our clinic. Preoperative BCVA and 3 month postoperative BCVA were measured by the Snellen chart, and we recorded the preoperative visual acuity by RAM. We also grouped the patients according to diabetic retinopathy and preoperative BCVA 20/100. By comparing the expected visual acuity by RAM with actual postoperative BCVA values, we analyzed the accuracy of the RAM`s predictability after surgery. The cataract types and macular disease were taken under consideration when analyzing our results. Results: Of the 47 eyes in our study, the postoperative Snellen visual acuity was predictable within three lines (90.9%) in 11 eyes with diabetic retinopathy and without macular disease. In the 36 eyes without diabetic retinopathy, the postoperative Snellen visual acuity was predictable within three lines (91.6%) of the cases. In both groups, the preoperative RAM acuity and postoperative BCVA were significantly correlated (R2=0.692, R2=0.812, p<0.05). In 41 eyes with preoperative BCVA 20/100 or more, the postoperative Snellen visual acuity was highly predictable in 95.1% (R2=0.763, p<0.05). However, in 6 eyes with preoperative BCVA levels less than 20/100, the postoperative Snellen visual acuity was not predictable (66.6 %). In the patients with both nucleosclerosis and posterior subcapsular opacity and in the patients with additional cortical opacity, the postoperative BCVA differed from the preoperative RAM acuity by more than three lines on the Snellen chart. Conclusions: RAM is useful in predicting postoperative visual acuity in cataract patients, but may be unreliable in the patients with combined cataract forms or with preoperative BCVAs less than 20/100.

Speed Controller Design of a Two-Inertia Motor System Using Weighted ITAE Index

박정일(Jung-Il Park) 제어로봇시스템학회 2009 제어·로봇·시스템학회 논문지 Vol.15 No.6

In a two-inertia motor system with flexible shaft, a torsional vibration is often generated as a quick speed response is required. This vibration makes it difficult to achieve a quick response of speed and disturbance rejection. The objective of this paper is to provide a systematic analysis and design of the three kinds of speed controllers such as I-P, I-PD, and state feedback control by using the weighted ITAE performance index. Some simulation and experiment results verify the effectiveness of the proposed design.

20世紀開港期釜山の市街地の研究

朴正一(Park Jung-Il) 동북아시아문화학회 2011 동북아 문화연구 Vol.1 No.29

As a result of having considered the city area of the Japanese leased territory of Pusan I obtained the result such as the result next which I analyzed mainly on an ancient map of Pusan about open Korea period of Pusan. was enforced by a top‐down method by the then Japanese Government. I think that the form of the town is based on city structure and a grid in succession to the descent from Japanese castle town and was formed. Of course there is neither the castle nor the castle tower, but, on the other hand, I establish stem mountain god Corporation in the top of the mountain behind of the central exclusive management of the city in Japan and do it with a psychological centripetal tendency place, and the street in the city does the form of the straight line basic tone for strategic defensive purposes there not a way seen in the neighborhood of the existing Torai prefecture which there was in the neighboring. In addition, what the dark factory of the objective hue of the military demand posts you in the safe place of the city, and locate a Japanese mounting a horse corps in the border with an outside Settlement territory thinks that there is a clearly strategic intention. In addition, I am big, and the existing city area en larges even a mask of the mass on the scale with a merger on later Korea day, and combination of sea power and the land power is completed as a point binding a sea route and a land route together than the defensive purpose, but it is aimed for the military strategy that is going to enlarge penetration in the continent via a peninsula. The city area gradually understands what deepened the density ad s a place of the life of people to live in there as a point transporting such military and supplies while spreading.