정보채집으로의 접근 - 폭소노미 이해를 위한 개념적 틀 연구 -

박희진,Park, Hee-Jin 한국비블리아학회 2011 한국비블리아학회지 Vol.22 No.3

본 연구는 정보채집(information foraging) 이론을 적용하여 웹 정보자원을 조직, 검색, 공유하는 폭소노미 이용자의 상호작용을 체계적으로 연구, 분석하는 개념적 틀을 제시하고자 한다. 폭소노미 상호작용 이해를 위한 개념적 틀은 최종 이용자의 세 가지 정보행위간의 유기적인 관계로 구성되어 있다: (1) 태그를 활용하여 웹 정보자원을 분류하고 조직하는 태깅; (2) 폭소노미 내에서 유용한 정보 자원을 발견하고 검색하는 정보탐험; (3) 폭소노미를 통해 유사한 관심을 갖고 있는 다른 이용자를 발견하고 커뮤니티를 구성하며, 협업을 통해 새로운 정보자원을 창출해내는 지식공유. 이 틀에서 최종이용자는 정보환경에 유연적으로 적응하며 폭소노미를 통해 줄곧 관심사에 관한 정보를 수집, 모니터하며 다른 이용자와의 효율적인 공유와 검색을 위해 끊임없이 탐험하는 정보채집자(information forager)로 이해된다. 본 연구에서 제시한 개념적 틀은 이용자와 폭소노미의 역동적이고 복잡한 상호작용 현상을 포괄적으로 조망함으로써, 향후 폭소노미를 비롯한 웹 정보서비스의 유용화 연구 설계에 보다 체계적인 이론적 토대를 제공할 수 있을 것이다. This paper proposes a conceptual framework to explore the ways in which people work with in accessing, sharing, and navigating Web resources. In order to provide a better frame of a user's interaction with a folksonomy, an information foraging approach was adapted that denotes adaptive information seeking behaviors of users within human information interaction. A conceptual framework that consists of three different components from users' points of view was proposed: tagging, navigation, and knowledge sharing. This understanding will help us to motivate possible future directions of research in folksonomy and lay the groundwork for empirical research which focuses on qualitative analysis of a folksonomic and users' tagging behaviors.

플라즈마 스프레이 (Ca, Co)-Doped LaCrO₃ 코팅층의 치밀화 및 전기전도도

박희진,백경호,Park, Hee-Jin,Baik, Kyeong-Ho 한국재료학회 2017 한국재료학회지 Vol.27 No.3

Doped-$LaCrO_3$ perovskites, because of their good electrical conductivity and thermal stability in oxidizing and/or reducing environments, are used in high temperature solid oxide fuel cells as a gas-tight and electrically conductive interconnection layer. In this study, perovskite $(La_{0.8}Ca_{0.2})(Cr_{0.9}Co_{0.1})O_3$ (LCCC) coatings manufactured by atmospheric plasma spraying followed by heat treatment at $1200^{\circ}C$ have been investigated in terms of microstructural defects, gas tightness and electrical conductivity. The plasma-sprayed LCCC coating formed an inhomogeneous layered structure after the successive deposition of fully-melted liquid droplets and/or partially-melted droplets. Micro-sized defects including unfilled pores, intersplat pores and micro-cracks in the plasma-sprayed LCCC coating were connected together and allowed substantial amounts gas to pass through the coating. Subsequent heat treatment at $1200^{\circ}C$ formed a homogeneous granule microstructure with a small number of isolated pores, providing a substantial improvement in the gas-tightness of the LCCC coating. The electrical conductivity of the LCCC coating was consequently enhanced due to the complete elimination of inter-splat pores and micro-cracks, and reached 53 S/cm at $900^{\circ}C$.

플라즈마 처리된 폴리이써설폰 막의 CO₂/N₂ 혼합가스의 투과거동에 대한 연구

박희진,노상호,배성렬,문세기,Park, Hee-Jin,Noh, Sang-Ho,Bae, Seong-Youl,Moon, Sei-Ki 한국화학공학회 2002 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.40 No.6

폴리이써설폰 막(polyethersulfone membrane, PES)을 Ar, $NH_3$ 플라즈마로 표면 처리하고, 처리 전후의 변화를 관찰하였다. Ar 플라즈마로 처리하였을 때 O/C의 비율이 증가하며 친수성기의 도입이 확인되었고 $NH_3$ 플라즈마로 처리하였을 때 아민, 아미노기가 도입되었다. 또한 폴리이써설폰 막의 흡습성이 유지될 경우, 플라즈마 처리에 의해 표면에 형성된 극성 작용기들과 $CO_2$와의 내부반응이 증가하였다. 이로 인해 $N_2$에 비하여 $CO_2$의 용해 선택성이 증가하였고 투과도와 선택도가 동시에 향상되는 효과를 나타내었다. 플라즈마 처리된 폴리이써설폰 막에서 $CO_2$의 투과도와 ${\gamma}$(actual separation factor)에 대한 최적조건은 Ar 플라즈마 처리의 경우 10 W-2 min에서 각각 $13.19{\times}10^{-10}cm^3(STP)cm/cm^2{\cdot}s{\cdot}cmHg$와 20.12이며, $NH_3$ 플라즈마 처리의 경우 50 W-2 min에서 $15.40{\times}10^{-10}cm^3(STP)cm/cm^2{\cdot}s{\cdot}cmHg$와 20.06를 얻었다. The surface of polyethersulfone(PES) membrane treated by Ar, $NH_3$ plasma, and the effects were observed before and after the treatment. The membrane treated by Ar plasma was increased the O/C ratio and measured the hydrophilic group, and the one by $NH_3$ plasma was attached the amine group and the amino group. In addition, with the wettability of polyethersulfone membrane $CO_2$ and the polar functional groups of surface interacted increasingly. Thus by comparable increase of the soluble selectivity $CO_2$ to $N_2$ both the permeability and the selectivity of $CO_2$ was improved. The optimum condition for the $CO_2$ permeation and actual separation factor of the plasma treated membrane was as follows; the measurement of Ar-10 W-2 min plasma treatment was $13.19{\times}10^{-10}cm^3(STP)cm/cm^2{\cdot}s{\cdot}cmHg$ and 20.12, and the measurement of $NH_3$-50 W-2 min plasma treatment was $15.40{\times}10^{-10}cm^3(STP)cm/cm^2{\cdot}s{\cdot}cmHg$ and 20.06.

청소년 컴퓨터용 가구특성과 요구에 관한 연구

박희진,Pak, Hee-Jin 한국주거학회 2008 한국주거학회 논문집 Vol.19 No.4

According to the Korean National Statistics Office(KNSO), more than 90% of Korean adolescents aged from 15 to 19 use a computer for more than 10 hours per week. The KNSO also reveals that this age group mostly uses a computer in their own room, followed by a commercial place. It is also found that the house for the adolescent is not simply a physical environment, but is rather a center of their personal lives where their personal and social developments are formed. Therefore, the physical environment where computers are used is very important. The purpose of this study was to investigate the characteristics and needs of computer furniture for the adolescent. Data were collected through self-administered questionnaires and 414 adolescents participated. The results of this study are as follows: (1) Most of the respondents(42%) used the internet for less than one hour per day and it was used for community visits and operations, game, and chat rooms. (2) The desks where computers were used were specially designed and made of wood. Chairs were typically height adjustable with armrests and there was no task lighting for computer use. (3) The preferences of computer furniture were chairs with a high back, casters and armrests. The overall satisfaction of individual computer rooms was low. However, it is important for an adolescent to be provided with a user friendly environment for sound growth and development. Further study is therefore needed regarding environmental variables through empirical study.

CIFER^®를 이용한 무인 헬리콥터의 동특성 분석 (I) - 조종기 제어 입력 데이터 획득을 위한 비행시험 -

박희진,구영모,배영환,오민석,양철오,송명현,Park, Hee-Jin,Koo, Young-Mo,Bae, Yeoung-Hwan,Oh, Min-Suk,Yang, Chul-Oh,Song, Myung-Hyun 한국농업기계학회 2011 바이오시스템공학 Vol.36 No.6

Aerial spraying technology using a small unmanned helicopter is an efficient and practical tool to achieve stable agricultural production to improve the working condition. An attitude controller for the agricultural helicopter would be helpful to aerial application operator. In order to construct the flight controller, a state space model of the helicopter should be identified using a dynamic analysis program, such as CIFER$^{(R)}$. To obtain the state space a model of the helicopter, frequency-sweep flight tests were performed and time history data were acquired using a custom-built stick position transmitter. Four elements of stick commands were accessed for the collective pitch (heave), aileron (roll), elevator (pitch), rudder (yaw) maneuvers. The test results showed that rudder stick position signal was highly linear with rudder input channel signal of the receiver; however, collective pitch stick position signal was exponentially manipulated for the convenience of control stick handling. The acquired stick position and flight dynamic data during sweep tests would be analyzed in the followed study.

논문편 : 노인들의 환경디자인 요소와 낙상위험 인지도와의 관계 및 주거내에서 낙상위험을 줄이기 위한 디자인 지침

박희진,조앤슈로이어 ( Hee Jin Pak,JoAnn L . Shroyer ) 대한가정학회 1996 Human Ecology Research(HER) Vol.34 No.6

에너지 효율적 트리로터 수직이착륙 무인항공기 개발

박희진,공동욱,손병락,이동하,Park, Hee-Jin,Kong, Dong-Uck,Son, Byung-Rak,Lee, Dong-Ha 한국태양에너지학회 2012 한국태양에너지학회 논문집 Vol.32 No.suppl3

In the recent research technical solutions have been studied to integrate renewable energy into unmanned aerial vehicles to use it as the main power source. As the weight of the aerial vehicle body is essential for its performance, we consider to use light-weight solar cell technology. Furthermore fuel cells are also integrated create a highly energy-efficient aerial robot. In this paper, construction concept and software design of the tilt-rotor aerial vehicle GAORI is introduced which uses solar cells and fuel cells as power source. The future work direction and prognosis are discussed.

조선후기 가계당 평균구수 추세 - 족보를 이용한 가족재구성을 중심으로 -

박희진 ( Hee Jin Park ) 경제사학회 2002 經濟史學 Vol.33 No.-

This paper estimates the average number of adult males per household using genealogies from 1639-1940. Efforts were made to eliminate forged entries. The number of adult males per household rose in the seventeenth century, which was followed by stagnation of the eighteenth century, and decline for most of the nineteenth century. The decline came to an end in the 1880s, when rapid increase started. Such a trend is consistent with those found in life expectancy and the incidence of adoption. The number of adult males per household is significantly and positively correlated with population during the colonial period(1910-1940).

일반논문 : 북한경제의 개방화 구상과 반개혁의 이중주

박희진 ( Hee Jin Park ) 동국대학교 북한학연구소 2012 북한학연구 Vol.8 No.1

본 연구의 목적은 새롭게 등장한 북한 김정은 체제의 경제정책을 ‘개혁·개방’의 관점에서 검토하고 향후 북한 경제의 변화상을 전망하는 것이다. 논문은 김정은 체제를 후계체제로 정의하고, 후계체제의 특성상 자율성 보다는 위업의 계승성이 본질적 특성을 이룬다고 보았다. 김정은 체제는 한반도의 냉전구도가 해체되지 않는 한 북한 체제의 구조적 환경제약으로 인해 대외협력, 체제유지, 경제발전의 삼결합(三結合)을 도모하고, 이들 요소 간 상승효과를 유발하는 정책을 구사해야 하는 선대체제와 같은 운명이다. 따라서 김정은 체제는 김정일 체제가 물려준 세 가지 경제적 유산에 기초하여 경제를 운용할 것으로 진단하였다. 첫째, 북중(北中) 간 경제협력 강화와 개방화. 둘째, 국내경제발전전략의 단계적 실현과 외자유치. 셋째, 시장개혁의 지체와 이중적 경제운용이 그것이다. 이를 한마디로 정의하자면 ‘거점개방과 반개혁의 이중주’라 할 수 있다. 향후 거점개방과 반개혁의 이중주를 연주하는 북한 경제는 선순환적 경제발전을 꾀하기보다 왜곡과 부패 앞에 더 많이 노출될 것이며, 중국 쪽으로 열려있는 개방특구를 향한 경제쏠림현상이 더욱 강화될 것으로 전망된다. The purpose of this research is to review new economic policy of North Korea under Kim Jung Eun from perspective of reformation and openness and prospects future change of North Korean economy. This thesis defined Kim Jung Eun system as a successor system and because of the characteristics of successor system, we saw that its essential characteristic is consist of achievement of succession rather than liberalization. Unless cold war structure in the Korean peninsula is demolished, Kim Jung Eun system is in the same destiny with previous system which needs to seek for three combination of international cooperation, maintaining the system and economic development and implement policy that can incur synergy effects of these three elements. Therefore it was diagnosed that Kim Jung Eun system will manage economy based on three economic legacies of Kim Jung Il system. First, strengthening of economic cooperation between China and North Korea and liberation. Second, phase in of National Economic Development Strategy an inflow of foreign capital. Third, the delay of market reformation and double economic management. If they are defined in one line, it could be “Opening of base and duet of counter-reformation”. Future opening of base and North Korean economy that playing duet of counter-reformation will be more exposed to distortion and corruption rather than seek for virtuous cyclic economical development and enhance economic leaning phenomenon which is open to specific open place of China.

북한의 주택건설 현황과 생활환경 실태

박희진 ( Park Hee-jin ) 한국보건사회연구원 2021 보건복지포럼 Vol.298 No.-

이 글은 북한 주민들의 주택 현황, 주거환경에 관한 변화를 고찰하고, 사회계층의 격차라는 내포적 의미를 탐구한 글이다. 북한의 김정은 체제는 90년대 경제난을 ‘단번’에 극복하고, 과학기술로 ‘경제 도약’을 시도하고자 하며, 경기 부양책의 일환으로 건설 경기를 활성화하고 있다. 그리고 북한 당국의 건설 경기 활성화 정책은 주민들에게 긍·부정의 효과를 동시에 보이고 있다. 긍정의 효과는 ‘주택결정권’을 갖게 된 주민들이 스스로 거주공간을 변화시키는 것이며, 부정의 효과는 ‘주택상품화’로 인해 주거생활의 격차를 발생시킨다는 측면이다. 따라서 본 연구는 주택결정권을 가진 북한 주민들의 내 집 꾸미기 현상을 주체성의 측면에서 고찰하고, 주거환경을 둘러싼 생활환경의 변화를 사회계층의 격차라는 측면에서 고찰해 보았다. This study examines recent changes in the housing and residential environment in North Korea and explores whether these changes mean increased separation of social classes. The Kim Jung-un government in North Korea has overcome all at once the financial difficulties they had in the 90’s and attempts to achieve ‘economic improvement’ with scientific technology and promotes the constructionsector as a pump-priming policy. However, the North Korean government’s policy to boost the construction business has brought both positive and negative impacts on the residents. For the positive impact, the residents who have their ‘right to their own homes’ are encouraged to change their own living space, while the negative impact is that there have been disparities in the living environment between groups of people as ‘housing has become commercialized.’ Therefore, this study aims to discover how North Koreans with home ownership are taken to decorating their homes on their own and takes a look at how changes in their residential and living environment have taken place, giving rise to social disparities.