0이 팽창된 포아송 회귀모형을 이용한 기부회수 자료의 재분석

김인영,박태규,김병수,Kim, In-Young,Park, Tae-Kyu,Kim, Byung-Soo 한국통계학회 2009 응용통계연구 Vol.22 No.4

Kim et al. (2006) analyzed the donation data surveyed by Voluneteer 21 in year 2002 at South Korea using a Poisson regression based on the mixture of two Poissons and detected significant variables for affecting the number of donations. However, noting the large deviation between the predicted and the actual frequencies of zero, we developed in this note a Poisson regression model based on a distribution in which zero inflated Poisson was added to the mixture of two Poissons. Thus the population distribution is now a mixture of three Poissons in which one component is concentrated on zero mass. We used the EM algorithm for estimating the regression parameters and detected the same variables with Kim et al's for significantly affecting the response. However, we could estimate the proportion of the fixed zero group to be 0.201, which was the characteristic of this model. We also noted that among two significant variables, the income and the volunteer experience(yes, no), the second variable could be utilized as a strategric variable for promoting the donation. 김인영 등 (2006)은 두 개 포아송 분포의 혼합모형에 기초한 회귀모형으로써 2002년 (사)볼런티어 21에서 실시한 설문조사 자료를 분석하여 우리나라 개인들이 기부한 횟수에 영향을 미치는 유의적 변수들을 식별하였다. 본고에서는 김인영 등 (2006)에서도 언급하였듯이 기부횟수 0의 관찰 빈도와 예측 빈도간 차이가 유독 큰 점을 감안하여, 0이 팽창된 포아송(zero inflated Poisson: ZIP)을 기존의 두 개의 포아송 혼합분포에 추가하여 일종의 세 개 포아송 혼합분포 형태로 모집단 분포를 구성하며 동 모형의 회귀모형으로써 기부횟수 자료를 재분석하고자 한다. 회귀계수에 대한 추정은 두 단계 EM 알고리즘으로 이루어 졌고, 유의적 설명 변수의 검색은 김인영 등 (2006)과 같았으나 본 연구에서는 고정된 령(零)군의 비율을 0.201로 추정할 수 있었으며, 두 가지 유의적 설명변수인 소득과 자원봉사 중에서 자원봉사가 기부 횟수를 늘리는 안정적 도구 변수로써 작용할 수 있음을 보고하고 있다.

English Preference Tendencies and English Learning Anxiety in Primary School Children

김인영 한국영어교육학회 2004 ENGLISH TEACHING(영어교육) Vol.59 No.3

This paper aims to identify diverse learner variables influencing affective factors in primary school children’s English learning, in an attempt to find out ways to form positive attitudes toward English learning for young learners. For this purpose, (1) the correlation between English Preference Tendencies (EPT) and English Learning Anxiety (ELA) in Korean primary school children was examined, (2) the individual learner factors such as learners’ grades, gender, starting age of learning English, learning experiences outside the regular school curriculum, interaction with family members, and experience abroad were examined to investigate whether they are influential in forming affective attitudes of primary school children. From the survey questionnaires developed for this research, it was revealed that (1) EPT in primary school children significantly correlated with ELA, indicating that the higher students’ EPTs are, the lower their ELAs are, and (2) four key learner factors investigated among seven factors, learners’ grades, starting age of learning English, individual learning experiences outside regular school classrooms, and interaction with family members significantly influenced the overall EPTs in children. Implications for how to create and sustain primary school children’s EPTs are discussed.

리오셀직물의 심지접착에 따른 외관적 성능 및 역학적 특성(Ⅱ)

김인영,오수민,송화순 대한가정학회 2002 Human Ecology Research(HER) Vol.40 No.7

In this work, the effect of fusible interlining on the appearance related properties and mechanical characteristics of Lyocell fabric after fusing was investigated. Two different types(20's and 10's) of Lyocell face fabric with six different interlining(by thickness and structure) for each Lyocell fabric were examined. In order to establish the optimum fusing condition for the different face fabric and interlining, peel strength of each fused fabric was measured, which was dependent on the fusing temperature, pressure, and time. The characteristics related appearance and mechanical characteristics of each fused fabric were determined. The results are as follows: The peel strength was excellent, when the fabric was fused with the force of 3kgf/㎠ at 120℃ for 15seconds. Flex stiffness, G, 2HG, 2HG5(shear), B, 2HB(bending) of 100% Lyocell fabric 10's were higher than those of 100% Lyocell 20's. Flex stiffness, crease recovery, G, 2HG, B, 2HB of thicker woven interlining were higher than those of thinner woven interlining. Crease recovery of twill interlining were higher than those of plain interlining. In case of shear and bending properties, however, plain interlining was higher than twill interlining. Flex stiffness, crease recovery, G, 2HG, 2HG5, B, 2HB of nonwoven interlining were higher than those of woven interlining. In case of drapability, however, woven interlining was higher than nonwoven interlining.

리오셀직물의 심지접착에 따른 외관적 성능 및 역학적 특성 (제1보)

김인영,송화순 한국의류학회 2001 한국의류학회지 Vol.25 No.7

The goal of this research is to investigate the effect of fusible interlinings on the mechanical characteristics and appearance related values for the Lyocell fabrics. In this study, to establish optimum fusing conditions, peel strength of the fused fabrics depending on the fusing temperature, pressure and time was measured. Appearance related properties and mechanical characteristics of the fused fabrics were determined. The results are as follows: In the fusing condition of 120℃, 31kgf/㎠, 15sec, peel strength was excellent. Peel strength was excellent in the case of tencel/cotton fabric, with increasing cover factor of woven interlining, with twill and nonwoven interlining. Flex stiffness was increased in the case of tencel/cotton fabric, with increasing weight of woven interlining, with twill and nonwoven interlining. Drapability was excellent in the case of 100% tencel fabric, with decreasing weight of woven interlining, with plain and woven interlining. Crease recovery was excellent in the case of 100% tencel fabric, with increasing weight of woven interlining, with twill and woven interlining. Shear and bend properties were increased in the case of tencel/cotton fabric, with increasing weight of woven interlining, with plain and nonwoven interlining.

지속성 휴대용 복막투석(CAPD) 30 예에 관한 임상적 고찰

김인영,박진석,이시래,박요한,양상호,박상은,이승도 대한신장학회 1985 Kidney Research and Clinical Practice Vol.4 No.1

Clinical studies were carried out on the 30 cases of CAPD who had been treated from April 1983 to February 1984. The following results were obtained: 1) Twenty-two cases('73,3%) were male and eight cases(26. 7%) were female, with male to female ratio of 2. 75: 1. The age distribution disclosed the 4th decade in 8 cases(26.7%), Che 5th decade in 8 cases(26. 7%), and the 6th decade in 7 cases (23 3%) Indications for CAPD were: patients desire in 13 cases(43.3%), rural residence in 7 cases(23, 3%), diabetes mellitus in 7 cases(6 .7%) unstable hemodynamic state in 2 cases(6 .7%), and poor vascular access in one case(3 3%). 2) Peritonitis was the most common complicat- ion whose incidence was one episode/patient/4, 8 months. Other complications were bloody effluent in 4 cases, transient outflow obstruction in 3 cases, catheter malposition in 2 cases, catheter exit site infection in one case, leakage of dialysate around catheter in one case, scrotal swelling in one case and hearing difficulty in 3 cases. The peritonitis was manifested by cloudy dialysate effluent in 92.9%, abdominal pain in 85.7%, fever in 28.6%, and presence of more than 100 WBC/cmm in eff- .luent fluid in 100%. The culture positive rate of cffluent was 25. 0% CAPD catheters were removed Jue to persistent peritonitis in two cases, catheter malposition in one case, and inconvenience in one case. 3) In one case, intraperitoneal bleeding and cat- heter obstruction was treated with intraperitoneal urokinase administration, and in another case, poor drainage resulted from catheter displacement due to paralytic ileus was treated by Levine tube dec- ompression, which resulted in good catheter posi- tion and function.

텍스트마이닝을 이용한 고속도로 운전자 요인 교통사고 경위 분석에 관한 연구

김인영,박상민,이환필,윤일수 한국ITS학회 2021 한국ITS학회 학술대회 Vol.2021 No.04

복부 체표명 위전도술을 이용한 위 수축의 추정

김인영,이화영,김재준,백승운,고광철,이종철,손정일,이풍렬,전성국,한완택 대한소화기학회 1998 대한소화기학회지 Vol.32 No.1

Backgroud/Aims: The aim of this study was to identify gastric contraction by surface electrogastrography (EGG). Methods: Ten functional dyspeptic patients were included. Antropyloroduodenal manometry and EGG for functional dyspeptic patients were simultaneously recorded during two hours of the fasting peroid. For EGG signal acquisition, the high cutoff frequency was set on 8 Hz and the signal sampling frequency was 16 Hz. For EGG signal analysis, fast Fourier transformation of running spectral analysis was used. Results: During motor quiescence period, the EGG showed normal smooth sine wave, and on time domain frequency analysis, there was a single dominant wave of three cycles per minute (3 cpm). During gastric contraction, the slow wave increased in its amplitude and changed its configuration into a late peak on its wave form. On time domain frequency analysis, there was also dominant frequency of 3 cpm, and a marked increment in the first harmonic during the contraction compared with the motor quiescence period. There were rough correlations between the power of the first harmonic and the gastric contractions. Conclusions: Gastric contractions could be assessed by changes in waveform and power of first harmonic in addition to change in amplitude on surface EGG.

B/C 분석을 이용한 친환경차량 전용차로 운영대안별 경제성 분석

김인영,권재경,김예진,소재현,박상민,윤일수 대한교통학회 2021 대한교통학회 학술대회지 Vol.85 No.-

본 연구에서는 영동고속도로 ‘용인 IC~덕평 IC(16.7km)’구간에 대하여 버스전용차로 내 친환경차 주행 허가에 대한 경제성을 분석하였다. 경제성 평가기법으로 B/C 분석을 활용하였으며 benefit 요소로는 통행시간 절감편익, cost 요소로는 교통사고 비용을 선정하였다. 통행시간 절감편익 산정 시 하루 중 교통량 변동을 고려하여 첨두 시간과 비첨두 시간으로 나누어 분석하였다. 또한, 교통사고 비용의 경우 첨두와 비첨두 시간을 구분하지 않고 동일하게 적용하였다. 현재 국내 친환경차 등록 비율인 0.59%를 기준으로 사업 시행 전·후 시나리오를 설계하였으며 향후 친환경차가 확대될 것을 고려하여 친환경차가 1%, 5%, 10% 도입되었을 경우까지 총 4개의 시나리오에 대해 경제성을 평가하였다. 평가 결과, 모든 시나리오에서 사업 시행 시 경제성이 있는 것으로 나타났으며, 친환경차 도입률이 높아질수록 점차 편익이 증가하는 것으로 분석되었다.

시장실패? 문제는 정치실패다! – 토론 2

김인영 한국경제연구원 2014 한국경제연구원 세미나자료 Vol.14 No.2

정당 대변인 논평에 나타난 쟁점관리 메시지 특성 : 대통령 탄핵 정국을 중심으로

김인영,허경호 한국소통학회 2004 한국소통학보 Vol.3 No.-

이 연구는 우리나라 헌정사상 초유의 대통령 탄핵 정국과 관련된 각 정당들의 대변인 논평을 분석하여 탄핵 정국 과정에 나타난 세부쟁점들을 살펴보고 이러한 세부 쟁점들에 대해 쟁점관리 측면에서 구사된 메시지 전략을 분석하고자 했다. 구체적으로 탄핵정국에서 각 정당은 어떤 주체들을 소구대상으로 하고 있는가, 어떤 세부쟁점들을 다루고 있는가, 그리고 각 정당은 어떠한 쟁점관리 메시지 전략을 구사하고 있는가에 대해 살펴보았다. 분석결과 논평의 소구대상은 전체적으로 타 정당과 국민을 대상으로 하는 논평이 전체 논평의 60%에 달했다. 이는 탄핵에 대한 찬·반론으로 여야간 공방이 격렬했음을 말해 준다. 또한 이러한 각 정당의 입장을 국민들에게 널리 소구하기 위하여 논평활동을 활발하게 벌인 것을 알 수 있다. 세부쟁점을 분석한 결과 탄핵안 발의 및 가결의 주도적 역할을 한 두 야당은 전체 논평 중 절반 이상을 모두 탄핵 사유에 대해 할애하면서 탄핵의 불가피성을 피력했다. 이에 비해 여당은 탄핵안 가결의 부당성을 제기하면서 탄핵안 가결은 의회쿠데타라는 쟁점을 강조하였고 촛불집회를 세부쟁점으로 삼아 탄핵철회 및 저지에도 큰 비중을 둔 것으로 나타났다. 쟁점관리 메시지 전략으로는 협상전략이 가장 많이 활용된 것으로 나타났다. 구체적으로 세 정당 공히 탄핵에 관해 지속적인 감시를 독려하는 전략인 모니터링 전략을 주로 구사한 것으로 나타났다. 결론적으로 탄핵정국에서 각 정당들은 세부쟁점과 관련하여 각 당의 입장을 유리한 방향으로 이끌기 위한, 혹은 현재의 입장을 공고히 하거나 관철시키기 위한 메시지 전략들을 구사하고 있음을 알 수 있다.특히 대통령 탄핵에 대해 여야간 입장이 극도로 대립되어 있고, 강조하는 세부쟁점들에 있어서도 극명한 차이를 보이고 있음에도 불구하고 각 정당들은 협상전략을 가장 많이 구사함으로써 쟁점의 해결에 초점을 맞추어 대변인 논평의 메시지를 구성한 것으로 판단된다. The current study analyzed official statements of political parties on impeachment issues of President Roh which had been announced during the course of the presidential impeachment. More specifically, we examined whom each party had attempted to appeal to, what were the specific issues, and what kind of issue management strategies each party had employed. Results show, a total of 60% of the statements were aimed to reach the other parties and general audience as the message targets. This indicates that the attacks and counter-attacks through the statements among the parties were so intense, and each parties launched a serious persuasive campaign to appeal to the general public as well. The analysis of the specific issues within the statements shows the two parties, which had played a key role in passing the presidential impeachment proposal, emphasized the inevitability of the impeachment. However, the ruling party emphasized the injustice of the impeachment describing it as the parliamentary coup d’état. Among the issue management strategies that each party has employed, the negotiation strategy was used the most frequently by all three parties, and more specifically, the monitoring strategy encouraged people’s continued watch on the course of the impeachment was preferred by the three parties. In sum, during the course of the presidential impeachment, each party employed a variety of issue management strategies to lead the public opinion toward its own side or strengthen its own position on the impeachment. The implication that regardless of the extreme confrontation among three parties, the negotiation strategy was preferred by all three parties was discussed and the suggestions for the future study were made.