이달에 만난 사람

김선중,Kim, Seon-Jung 대한양계협회 2006 월간 양계 Vol.38 No.1

울산시 도심거주자의 생활양식과 주거만족

김선중,권명희,Kim, Sun-Joong,Kwon, Myoung-Hee 한국주거학회 2007 한국주거학회 논문집 Vol.18 No.6

The purpose of the study was to identify the housing plan responding to lifestyles of residents living in Center of Ulsan city. A total of 230 date sets were analyzed after collecting questionnaire from 284 households using convenient sampling method. For date analysis, descriptive statistics. cross analysis, One-Way ANOVA, factor analysis, cluster analysis were performed by SPSS program. The research centered on the possibility of categorizing lifestyles of residents based upon their living awareness. The results showed that there are four major categorizes of residents's lifestyles. According to classification of their lifestyles, This study tried to analyse the characteristics of residents based upon the characteristics of the households, housing satisfaction. The analysis instrument of the lifestyle concept will be useful to develop the new strategies and to plan the new multi-family houses.

하이드라진 방법에 의한 ZnO 미분말의 합성 및 에탄올 감응성

김선중,이종흔,Kim, Sun-Jung,Lee, Jong-Heun 한국재료학회 2008 한국재료학회지 Vol.18 No.11

ZnO nanopowders were synthesized by the sol-gel method using hydrazine reduction, and their gas responses to 6 gases (200 ppm of $C_2H_5OH$, $CH_3COCH_3$, $H_2$, $C_3H_8$, 100 ppm of CO, and 5 ppm of $NO_2$) were measured at $300\;{\sim}\;400^{\circ}C$. The prepared ZnO nanopowders showed high gas responses to $C_2H_5OH$ and $CH_3COCH_3$ at $400^{\circ}C$. The sensing materials prepared at the compositions of [$ZnCl_2$]:[$N_2H_4$]:[NaOH] = 1:1:1 and 1:2:2 showed particularly high gas responses ($S\;=\;R_a/R_g,\;R_a$ : resistance in air, $R_g$ : resistance in gas) to 200 ppm of $C_2H_5OH$($S\;=\;102.8{\sim}160.7$) and 200 ppm of $CH_3COCH_3$($S\;= 72.6{\sim}166.2$), while they showed low gas responses to $H_2$, $C_3H_8$, CO, and $NO_2$. The reason for high sensitivity to these 2 gases was discussed in relation to the reaction mechanism, oxidation state, surface area, and particle morphology of the sensing materials.

울산시 신주거지의 아파트 계획을 위한 거주자 주거선택행동에 관한 연구

김선중,권명희,Kim Sun-Joong,Kwon Myung-Hee 한국주거학회 2006 한국주거학회 논문집 Vol.17 No.4

The purpose of the study was to identify the level of housing choice behavior by using the factors of residential satisfaction level, mobility motivation, and housing needs of potential purchasers in Bukgu New Housing Area, Ulsan. The survey used questionnaire from 326 households living in Bukgu and nearby area and analyzed using descriptive statistics. The research results showed low degree of residential satisfaction in storage space and neighborhood. The mobility motivations were improvement of physical environment improvement, education environment, walking road, view and lighting. The housing needs for indoor spaces showed to want more functional arrangement than the room size. The housing needs for outdoor spaces showed to want neighborhood environment in connection with the education or hospital facilities, the welfare facilities for pre-kindergarten children and elders and the leisure facilities. And the housing needs for facilities were floor furnishing for health, crime prevention system for safety needs, housekeeping appliance against environmental pollution, additional function for energy saving. The housing needs for common spaces showed that the residents preferred playing facilities by age group, exercise facilities, the community hall and the rest room which can do games or meetings.

릴레이탐방-양계질병연구 현장

김선중,Kim, Seon-Jung 대한양계협회 2007 월간 양계 Vol.39 No.1

국내 수의과 대학의 조류질병과는 조류에서 발생하는 질병연구를 목적으로 다양한 방법을 이용하여 질병의 원인체 혹은 병원체, 역학 등을 규명하고 효과적인 질병 방역대책에 대하여 연구를 하고 있다. 나아가 병원체의 여러 가지 성상에 중점을 두어 방역대책에 기초자료를 제공하며, 최근에는 분자생물학적 기법을 이용한 병원체의 특성을 규명함으로서 질병에 대해 좀더 근본적이고 다각적인 연구를 수행하고 있다. 본고는 새해를 맞이하여 국내에 있은 수의과대학을 찾아 릴레이 형식으로 가금질병 교수와의 인터뷰를 통해 가금질병에 입문하게 된 계기, 가금질병 이야기, 질병감정의뢰 절차 등의 이야기를 들어보고자 한다. 이달은 서울대학교 수의과대학교 김선중 교수를 찾아 인터뷰를 한 내 용을 정리하였다.

Micro spiral inductor를 이용한 2.5Gb/s급 2:1 Multiplexer 설계

김선중,최정명,범진욱,Kim, Sun-Jung,Choi, Jung-Myung,Burm, Jin-Wook 대한전자공학회 2007 電子工學會論文誌-SD (Semiconductor and devices) Vol.44 No.8

A 2.5Gb/s 2:1 multiplexer(MUX) IC using $0.18{\mu}m$ CMOS was designed and fabricated. Inductive peaking technology was used to improve the performance. On-chip micro spiral inductor was designed to maximize the inductive peaking effect without increasing the chip area much. The designed 4.7 nH micro-spiral inductor was $20\times20{\mu}m2$ in size. 2:1 MUX with and without micro spiral inductors were compared. The rise and fall time was improved more than 23% and 3% respectively using the micro spiral inductors for 1.25Gb/s signal. For 2.5 Gb/s signal, fall and rise time was improved 5.3% and 3.5% respectively. It consumed 61mW and voltage output swing was 1$180mV_{p-p}$ at 2.5Gb/s. [ $0.18{\mu}m$ ] CMOS공정을 이용하여 supply voltage 1.8V에서 2.5Gb/s 이상의 데이터 처리속도를 가지는 2:1 Multiplexer(MUX) 설계를 하였다. High speed 동작을 위한 주파수의 한계를 극복하기 위해서 4.7 nH의 on-chip micro spiral micro inductor $(20\times20{\mu}m2)$가 설계 되었고, 10개 이상의 inductor를 사용하고도 칩 면적 증가가 거의 없으면서 inductive peaking 효과를 극대화할 수 있었다. 칩 측정은 on-wafer로 진행되었고, micro spiral inductor가 있는 2:1 MUX와 그것이 없는 2:1 MUX 각각 측정하여 그 결과를 비교하였다. 측정결과 micro spiral inductor를 가진 2:1MUX가 rise time과 fall time이 1.25Gb/s에서는 rise time이 23%, fall time은 3%의 peaking 개선 효과가 있는 것을 확인하였다. 2.5Gb/s에서는 fall time이 약 5.3%, rise time 3.5%의 개선 효과를 보았다. 전체 소비전력은 61.2mW, 2.5Gb/s에서 voltage output swing은 $180mV_{p-p}$로 측정되었다.

Disciplinary Health Education : 지체장애인의 스포츠 참가경험과 스포츠 태도의 관련성에 관한 연구

김선중,홍양자 ( Sun Joong Kim,Yang Ja Hong ) 한국체육학회 1994 국제스포츠 학술대회 Vol.1994 No.-

하이드라진을 이용한 용액환원법에 의한 Ni-GDC 미분말 합성과 전기적 특성

김선중,김강민,조평석,조윤호,이충용,박승영,강윤찬,이종흔,Kim, Sun-Jung,Kim, Kang-Min,Cho, Pyeong-Seok,Cho, Yoon-Ho,Lee, Choong-Yong,Park, Seung-Young,Kang, Yun-Chan,Lee, Jong-Heun 한국재료학회 2008 한국재료학회지 Vol.18 No.12

Ni-GDC (gadolinia-doped ceria) composite powders, the anode material for the application of solid oxide fuel cells, were prepared by a solution reduction method using hydrazine. The distribution of Ni particles in the composite powders was homogeneous. The Ni-GDC powders were sintered at $1400^{\circ}C$ for 2 h and then reduced at $800^{\circ}C$ for 24 h in 3% $H_2$. The percolation limit of Ni of the sintered composite was 20 vol%, which was significantly lower than these values in the literature (30-35 vol%). The marked decrease of percolation limit is attributed to the small size of the Ni particles and the high degree of dispersion. The hydrazine method suggests a facile chemical route to prepare well-dispersed Ni-GDC composite powders.

식생활용품 수납실태에 따른 선반높이 모듈에 관한 연구

김선중,Kim, Sun-Joong 한국주거학회 2011 한국주거학회 논문집 Vol.22 No.2

This research is to suggest effective kitchen furniture design for 40, 50 pyeong-size apartment considering the quantity and volume, heights or length of stored items for cooking. The research candidates are purposive-sampled 30 households in Kangnam, Seoul. The observation shows that the volume of kitchen furniture is $3.1{\sim}5.9m^3$ and of utility furniture is $0.3{\sim}3.8m^3$. For each households hold average of 886 kitchenwares, $4.1m^3$. Such were normally stored in the upper and lower storage and tall storage closet for a kitchen. Through the field studies and depth interviews, it is shown that there are 287 (33.2%), $1.67m^3$ of the application for preparing food, certain knives, disposable products and food which is considered absolutely or comparatively hard to organize. Products that are very hard to organize are the small application for cooking, grouped kitchenware such as openers, the applications with long rod shape food, and detergent. There are 96 of such products, taking the volume of $0.32m^3$; thus, such products are considered to improve the kitchen furniture design. And the shelf of storage can the control 3cm hights according to result of this research.

재가노인 유헬스 생활지원기기의 실용화를 위한 여성노인의 선호

김선중,박경옥,Kim, Sun-Joong,Park, Kyoung-Ok 한국주거학회 2009 한국주거학회 논문집 Vol.20 No.1

The purpose of this study is to find out the preference and the needs of old womens on the life support appliances i.e. medication dispenser, video phone, activity monitor and sleep monitor. The appliances may be improved reflecting the result of the questionnaire asking about the preferred functions and designs. The respondents were 141 female seniors of 65 years and older, living in Ulsan city or Cheongju city, Korea. Following is the list of results. (1) The medication dispenser, responded as highly preferred, met some worries over the troubles by power stoppage especially while one is out, letting her forget the medication time. (2) The video phone was worried over the cases of hearing failure by small sound, and watching failure by weakening sight. (3) The activity monitor, like the medication dispenser, was worried about the troubles while one is out or out of the monitoring scope, its expense, and the privacy, (4) The sleep monitor met the worries over the inadequacy for the sleeping mat on the floor and the emission of electromagnetic waves. (5) The preferred designs were (1) white or red standing medication dispenser, (2) wall-mounted video phone working by voice, (3) metal activity monitor sensor with white or yellow bracelet.