천안지역 일부 다중이용시설의 포름알데히드 농도에 관한 연구

전혜리(Hye-li Jeon),조수연(Su-yeon Jo),조혜란(Hye-ran Jo),조태진(Tae-Jjn Cho),박종안(Jong-an Park),손부순(Bu-soon Son) 대한환경위생공학회 2009 대한환경위생공학회지 Vol.24 No.2

This study was conducted at a Terminal, a Parking Lot, an Underground shopping center, a Funeral hall and a Hospital waiting room of Cheon An area in August 2008 to examine the concentration level of HCHO(formaldehyde). The concentration level of the remodeled sites were 39.4 ± 12.0 ㎍/㎥ in the terminal, 32.7 ± 7.3 ㎍/㎥ in the parking, and 97.8 ± 29.4 ㎍/㎥ in the underground shopping center. The underground shopping center had the highest level and followed by the terminal and the parking. On the contrary, the site remodeling had the level of 17.7 ± 12.4 ㎍/㎥ in the funeral hall and 17.9 ± 0.6 ㎍/㎥ in the hospital waiting room. The funeral hall had highest level than that of the hospital waiting room. Both the remodeled sites and the not remodeled site had concentration level of HCHO below the standard level, but it was higher in the remodeled sites. There were no relations among the HCHO, the temperature and the humidity in facilities of Cheon An area.

휴대폰 착신 알림을 위한 모바일 디스플레이 시스템 설계

박종안,천종훈,강성관,Park, Jong-An,Chun, Jong-Hun,Kang, Sung-Kwan 한국인터넷방송통신학회 2011 한국인터넷방송통신학회 논문지 Vol.11 No.6

휴대폰을 소지할 수 없는 제한된 공간에서 휴대폰 착신 여부를 표시하는 휴대폰 착신 디스플레이 시스템을 설계하여 제작하였고 그 타당성을 확인하였다. 개발된 휴대폰 착신 알리미 시스템은 위탁 공간에 보관된 휴대폰의 착신 여부를 감지하여 블루투스를 통해 데이터를 송출하는 휴대폰 데이터 송신 애플리케이션과 데이터 송수신 범위를 확장하기 위한 RF 데이터 중계기 그리고 미소지자에게 휴대폰 착신 상태를 알려주는 착신 데이터 디스플레이 장치로 구성된다. 제안된 시스템은 구현이 간단하고 저가 설치가 가능하여 시스템 설치 측면에서 경제성을 가질 뿐만 아니라 시스템을 이용하는 일반 휴대폰 사용자에게도 앱 스토어에 올려놓은 알리미 애플리케이션을 다운로드하여 활용하게 함으로써 경제성과 함께 어느 곳에서나 편리하게 휴대폰 착신 상태를 확인할 수 있는 편리성도 갖게 된다. In this paper, we developed a phone call display system or "alimi" for displaying the received phone data at limited space that can not carry a mobile phone and and its validity was confirmed. It consists of a data communication application transmitting the phone data via bluetooth, a RF data repeater to extend the range of data communication, and a display system part for displaying the received phone data to the phone user. It has economy in terms of system installation because the implementation of the proposed system is simple and low cost installation is possible. As ordinary mobile phones users using the system can easily utilize it by downloading the application on the app. store, it has economy and convenience checking whether a call is received.

볏짚의 혐기성소화시 소화가스 생성에 관한 연구

박종안,허준무,Park, Jong-An,Hur, Joon-Moo 한국환경보건학회 1999 한국환경보건학회지 Vol.25 No.3

Quantity and composition of biogas from semi-continuous anaerobic digestion of straw were obtained experimentally in laboratory scale digesters fed with 1 liter of 5% straw-water mixture and maintained at 35$^{\circ}C$. Experiments were carried out for hydraulic retention time(HRT) of 8, 10 and 15days, respectively. The amount and composition of biogas produced were measured until steady-state was achieved for each run. The amount of biogas and methane percent go through a maximum and decrease continuously towards the steady-state after three times operation of hydraulic retention time(HRT). Methane gas production rates at steady-state increase with the increasing of HRT. Biogas production of 0.45 liter/day with 25% methane, 0.42 liter/day with 33.7% methane and 0.492 liter/day with 31.7% methane were obtained for 8, 10 and 15days of HRT, respectively. The high proportion of soluble carbohydrates present in straw makes the volatile fatty acids to build up within the digester causing a drop in pH that inhibits digestion. Regular control of pH is therefore necessary by adding alkalinity. Reductions in COD increase with increase in HRT. The stratification of plant material within the digester is different from that of manure, and modifications in design and operation of digesters may be necessary if they are fed with plant matter.

벤처.중소기업가의 전략적 직관에 의한 의사결정 모형에 대한 사례연구

박종안,김영수,도만승,Park, Jong An,Kim, Young Su,Do, Man Seung 한국벤처창업학회 2014 벤처창업연구 Vol.9 No.1

본 논문은 경영환경에 대한 불확실성 증대, 데이터 없는 최초 상황 발생, 합리적 의사결정이 불가능할 경우 등 기업환경이 변화할 때, 벤처 중소기업 경영자들은 의사결정 시 직관을 어떻게 활용하는가에 관한 사례연구다. 논문은 문헌 연구와 벤처 중소기업 경영자 16명을 심층 인터뷰하여 자료를 수집하였고, Klein, G, 의 "포괄적(generic) 멘탈 시뮬레이션 모델"로 분석하였다. 연구에 사용된 직관은 본인의 경험을 사용하는 전문가(expert) 직관과 타인의 경험도 활용하는 전략적(strategic) 직관으로 분류하였다. 사례연구 결과 경영자들은 전문가 직관과 전략적 직관을 다르게 활용하고 있었다. 전문가 직관의 특징은 별 노력 없이도 빠르게 작동하는데, 반해 전략적 직관은 시간이 많이 소요된다. 또 다른 특징은 전문가적 직관은 이미 발생된 일에 대한 의사결정에 많이 사용되고, 전략적 직관은 미래형 의사결정에 많이 활용되었다. 전략적 직관의 프로세스는 (1)전략적 관심단계 (2)매개물 발견단계 (3)1차 멘탈 시뮬레이션 단계 (4)핵심 매개변수 띄우기 단계, (4)2차 멘탈 시뮬레이션 단계 (5)내부 평가 단계 (6) 의사결정 단계를 거친다. 위에 단계를 모델링하여 벤처 중소기업 경영자들의 "전략적 직관에 의한 의사결정 모형(Strategic intuition decision-making model)"을 도출하였다. 사례분석 결과 나타난 중요한 결과는 첫째, 성공하는 의사결정 시 성공과 실패의 중요한 차이는 의사결정 프로세스 중 "2차 멘탈 시뮬레이션"에서 결정되었고, 둘째, 전문가 직관이 전략적 직관보다 많아질수록 경영의 어려움에 봉착하였으며. 셋째, 전략적 직관은 학습이 가능하다. A Case Study on Venture and Small-Business Executives' Use of Strategic Intuition in the Decision Making Process This paper is a case study on how Venture and Small-Business Executives managers can take advantage of their intuitions in situations where the business environment is increasingly uncertain, a novel situation occurs without any data to reflect on, when rational decision-making is not possible, and when the business environment changes. The case study is based on a literature review, in-depth interviews with 16 business managers, and an analysis of Klein, G's (1998) "Generic Mental Simulation Model." The "intuition" discussed in this analysis is classified into two types of intuition: the Expert Intuition which is based on one's own experiences, and Strategic Intuition which is based on the experience of others. Case study strategic management intuition and intuition, the experts were utilized differently. Features of professional intuition to work quickly without any effort by, while the strategic intuition, is time-consuming. Another feature that has already occurred, one expert intuition in decision-making about the widely used strategic intuition was used a lot in future decision-making. The case study results revealed that managers were using expert intuition and strategic intuition differentially. More specifically, Expert Intuition was activated effortlessly, while strategic intuition required more time. Also, expert intuition was used mainly for making judgments about events that have already happened, while strategic intuition was used more often for judgments regarding events in the future. The process of strategic intuition involved (1) Strategic concerns, (2) the discovery of medium, (3) Primary mental simulation, (4) The offsetting of key parameters, (5) secondary mental simulation, and (6) the decision making process. These steps were used to develop the "Strategic Intuition Decision-making Model" for Venture and Small-Business Executives. The case study results further showed that firstly, the success of decision-making was determined in the "secondary mental simulation' stage, and secondly, that more difficulty in management was encountered when expert intuition was used more than strategic intuition and lastly strategic intuition is possible to be educated.

주차장 통합관리를 위한 IR-UWB 레이더 모듈 개발

박종안(Jong-An Park),이지민(Ji-Min Lee),오상언(Sang-Eon Oh),김진규(Jin-Kyu Kim),강성관(Sung-Kwan Kang) 한국정보기술학회 2014 Proceedings of KIIT Conference Vol.2014 No.5

IR-UWB 레이더는 임펄스 레이더 신호를 송신하여 물체에 부딪혀 되돌아오는 반사파의 미소 변화량으로 피사체의 미세 움직임을 검출하는 기능을 갖는다. 본 연구에서는 임펄스 레이더를 이용하여 움직임 정보를 검출하고 무선 게이트웨이를 통해 검출 정보를 통합하여 관리하는 임펄스 레이더 모듈을 개발하였다. 또한 개발된 모듈은 탑재된 마이크로프로세서와 레이더 통신의 상호 연계로 검출영역과 조명에 대한 다양한 원격제어 기능을 갖도록 하였다. 그리고 이와 같은 임펄스 레이더 모듈을 이용하여 주차장 내 이동체를 감지하여 각종 장치들을 제어하는 주차장 통합관리시스템에 활용하는 방안을 제안하였다. The IR-UWB radar has a function of detecting fine movements of an object based on tiny change of the reflection signal, which is returned from the transmitted impulse radar signal. In this study, we have developed an impulse radar module that detects movement information using impulse radar and globally manages them through RF gateway. The developed module has various remote control functions for detected region and lighting by correlating mounted microprocessor and radar communications. And we have proposed an integration management system for the parking lot, which detects an object and controls the various units, using the proposed impulse radar module.

선박 안전 운항과 교통관제를 위한 모바일 AIS

박종안(Jong-An Park),강성관(Sung-Kwan Kang),하태진(Tae-Jin Ha),오상언(Sang-Eon Oh),김국정(Guk-Jeong Kim) 한국정보기술학회 2015 한국정보기술학회논문지 Vol.13 No.4

VTS which is designed to prevent marine accidents in operation has been used for efficient traffic control. However, as it is not easy to install AIS as a factor system of VTS in small and medium class vessels with respect to cost and operation, alternatives to solve this should be sought. In order to regularly renew GPS data, we implemented automatic communication reconnection algorithm that is tough in marine environment, so did ship-to-ship(communications system). It is used distance field and point node to test ship-to-ship collision and risk area. The superiority of the mobile AIS implemented was demonstrated through the results of the maritime test. It is expected to attach AIS in small and midium class vessels with easy-to-install and low cost, by implementing mobile AIS.

Ekeland 의 변분원리 응용

박종안(Jong-An Park) 강원대학교 기초과학연구소 1985 기초과학연구 Vol.2 No.-

Ekeland의 변분원리 [3,4]는 수학의 여러분야에서 응용되고 있다. 이 논문에서는 Ekeland의 변분원리 그 자체의 증명을 Rⁿ에서 시도하였던 Hiriat - Urruty의 증명[5]이 곧 재귀 바나하 공간에서도 적용될 수 있음과 Ekeland의 변분원리를 직접적으로 A. BrΦndsted와 R.T. Rockafellar[2]의 Lemma에 적용한다. Ekeland's variational principle[4] is applied in many branches of mathematics. In this paper, following Hiriat - Urruty's proof of Ekeland's principle in Rⁿwe obtained the same conclusion i.e. Ekeland's principle in a reflexive Banach space. Moreover we apply Ekeland's principle directly to a lemma of A. BrΦndsted. and R.T. Rockafellar[2].

첨단산업과 산업단지 조성

박종안(Park Jong-An) 조선대학교 지식경영연구원 2003 지역개발연구 Vol.8 No.1

Industrial crowd and specialization by the regional high technology industrial complex can maximize the synergy effect by economical effect and value chain in a dominant position, support the appropriate industrial environment that the industrial technology development by region technology renovation system construction and the product system of the flexible speciality. There are three common points to be found in the general selecting standards for upbringing high technology industrial business in Gwangju. First, the growth motive power of the globe promising high technology industry are; information technology industries, confrontation of industries due to advanced age, global environmental allied industries, and the undeveloped allied industries(such as new materials, mechatronics, space aeronautics, traffic industries, etc). Second, Nation wide promising high technology industry should be; industries based on 5-year plan with industrial technology development. industries based on national vision and development of the strategies. promising industry based on technology. Third, the regionally located industries and the specialized industries such as optical industries. The successful reasons of upbringing high technology industrial are supporting with high qualified human resources, good condition on circulating capital, perfect infra system, developing the consumer market. reliable circulation system, economical network system construction based on renovation, convenient shipping system construction, various tax benefits, neighboring districts civilization, etc. Thus, regional industry accumulating complex upbring the technology renovation high technology industries can increase the industries of international competitiveness, national industrial economic promotion, the consummation of provincial promotion and territorial balanced development, and right to appropriate the government's budget based on the investment plan on concentrated industrial complex. They can strengthen the national competitiveness.

체인코드 빈도수와 면적 복잡도에 기반한 조합형 형태 검색에서의 가중치 산정

박종안(Jong-An Park),이지민(Ji-Min Lee),천종훈(Jong-Hun-Chun),이용은(Yong-Eun Lee) 한국정보기술학회 2020 Proceedings of KIIT Conference Vol.2020 No.10

스마트폰 착신정보 자동 송신을 위한 어플리케이션 설계

박종안 ( Jong An Park ),김서궁 ( Seo Goung Kim ),강성관 ( Seong Kwan Kang ),천종훈 ( Jong Hoon Chun ),강광원 ( Kwang Wan Kang ) 한국항행학회 2012 韓國航行學會論文誌 Vol.16 No.1

본 논문에서는 안드로이드 운영체제를 기반으로 하는 스마트폰 사용자가 스마트폰을 휴대할 수 없는 수영장이나 찜질방 등 제한된 공간에서 스마트폰으로 수신되는 전화 및 SMS를 중계기와 디스플레이를 이용하여 확인할 수 있는 어플리케이션 설계를 제안하였다. 어플리케이션 설계는 사용자의 기본적인 정보를 저장하고, 전화 및 SMS를 수신 하였을 때, PhonStateListener 와 SmsReceiver를 이용하여 발신자 번호와 사용자 기본정보를 데이터화 한다. 데이터는 블루투스를 이용하여 중계기로 데이터를 전송한다. 스마트폰 사용자는 수신정보를 중계기를 통해 디스플레이 장치로 확인할 수 있다. This thesis suggests the application to the people who are using smart phone which is based on the Android operation system that makes it available to check their call and sms by a repeater and display in the limited places such as at the swimming pool or spa. This application is designed to save user`s basic information. And when the user gets a call or a sms, it can make the sender number and fundamental information a data by PhonStateListener and SmsReceiver. The data is uploaded by bluetooth of a repeater. The smart phone user can use the repeater to check the received information by display.