남원 세계허부산업엑스포 방문객의 만족과 재참가의도간의 관계

김진성 한국서비스경영학회 2007 서비스경영학회지 Vol.8 No.1

This study was conducted to find the important factors which co uld International Herb Expo 2004. In addition, in this study, we tr ied to extract the representative features from customer groups. To these purposes, we conducted Factor Analysis, Cluster sis, and Multiple Regression. The major fi ndings and marketing implicati ons could be summarized as follows: First, finally 5 factors Learning, Subjective Norms, , Usefulness, and Experience were extracted as the influential factors. Second, the 5 factors were revealed to hav e very strong relations with the Customer Satis on within the significance level of 0.01. Experience was revealed as an impor tant factor improving the Customer Satisfaction and Intention to Re-attend. T h i r d , cluster analysis identifi Belonger, Achiever, and Player. Then the Player was found to be the Opinion Leader. Fourth, 김진성서비스경영학회지 제8권 제1호 2007년 3월 216Usefulness was revealed as the most important factor to improve C u s t o m e r Satisfaction and Intention to Re-attend. 요인별 평균은 “체험성(3.85) > 학습성(3.76) > 교통/시설(3.51) > 유익성(2.99) > 주관적 규범(2.90)” 순서로 나타났다. 이 결과를 통해서, 방문자들이 느끼는 만족도 영향요인의 중에서 “체험성”이 가장 높다는 것을 알 수 있다.5.3. 군집분석요인분석에서 도출한 5개 영향요인을 기준으로 K-평균 군집분석을 통해, 남원 세계허브산업엑스포 참가자들을 3개의 그룹으로 분류하였다.

Affine Function 을 이용한 Approximate Explicit MPC 설계

김진성,이승희,정정주 제어로봇시스템학회 2019 제어로봇시스템학회 국내학술대회 논문집 Vol.2019 No.5

간과 비장의 체적을 구하기 위한 3차원 영역 확장 기반 자동 영상 분할 알고리즘의 동물팬텀을 이용한 성능검증

김진성,조준식,신경숙,김진환,전호상,조규성,Kim, Jin-Sung,Cho, June-Sik,Shin, Kyung-Sook,Kim, Jin-Hwan,Jeon, Ho-Sang,Cho, Gyu-Seong 한국의학물리학회 2008 의학물리 Vol.19 No.3

간경변 및간암 환자의 증가로 간이식술의 필요성이 점점 증가되고 있고, 특히 공여자의 생체 간이식은 간이식술의 주된 분야를 차지하고 있으며 간이식 수술 전 공여자에서 간체적의 정확한 측정은 수술 후 공여자와 수여자의 간기능을 예측하는데 있어 중요한 자료가 되며, 성공적인 수술과 환자의 예후에 밀접한 영향을 미친다. 그러나 현재 환자의 간체적을 구하는 과정은 환자의 모든 CT 영상위의 간을 수작업을 통해 영상분할한 후에 3차원 간체적을 구하고 있으며 많은 시간과 노력이 필요한 작업이다. 이러한 문제를 해결하기 위해서 본 논문에서는 자동으로 간과 비장을 문턱값처리, 형태학적 영상처리, 3차원 영역확장법등의 기법을 이용하여 분할하는 알고리즘을 개발하여 체적을 구하는 시간을 단축하였다. 이러한 알고리즘의 정확성을 평가하기 위해서 동물의 실제 간과 비장을 팬텀으로 제작하여 실제 측정한 체적과 알고리즘으로 분할된 영상의 결과를 비교 평가하였다. 문턱치값의 설정에 따라 다른 결과를 보이는 특성이 있지만 자동으로 문턱치를 결정했을 때 비장과 간의 체적측정 오차는 9.27%, -4.52%이었으며, 수동으로 문턱치를 결정했을 때 최소 오차가 각각 0.2%, 0.17%의 결과를 보였다. 이러한 팬텀 연구를 통해 자동 분할 알고리즘으로 얻은 체적의 결과가 정확성과 재현성을 보여주어 추후 간체적을 구하는 보조수단으로 활용될 수 있을 것이라 예상된다. Living donor liver transplantation is increasingly performed as an alternative to cadaveric transplantation. Preoperative screening of the donor candidates is very important. The quality, size, and vascular and biliary anatomy of the liver are best assessed with magnetic resonance (MR) imaging or computed tomography (CT). In particular, the volume of the potential graft must be measured to ensure sufficient liver function after surgery. Preoperative liver segmentation has proved useful for measuring the graft volume before living donor liver transplantations in previous studies. In these studies, the liver segments were manually delineated on each image section. The delineated areas were multiplied by the section thickness to obtain volumes and summed to obtain the total volume of the liver segments. This process is tedious and time consuming. To compensate for this problem, automatic segmentation techniques have been proposed with multiplanar CT images. These methods involve the use of sequences of thresholding, morphologic operations (ie, mathematic operations, such as image dilation, erosion, opening, and closing, that are based on shape), and 3D region growing methods. These techniques are complex but require a few computation times. We made a phantom for volume measurement with pig and evaluated actual volume of spleen and liver of phantom. The results represent that our semiautomatic volume measurement algorithm shows a good accuracy and repeatability with actual volume of phantom and possibility for clinical use to assist physician as a measuring tool.

Diphenylhydantoin이 태생생쥐의 중추신경계 기형유발에 미치는 영향

이융창,정성덕,김진성 大韓神經精神醫學會 1988 신경정신의학 Vol.27 No.4

To elucidate the teratogenic effect of DPH to the development of central nervous system in fetal mouse, each dose of 200 ㎎/㎏ and 400 ㎎/㎏ of DPH were administered orally, on the 4th day 8th day, to respective subgroups of pregnant mice. The fetal mice were removed from uteri on the 17th day of gestation and were fixed in Bouin's solution, Paraffin-sectioned, and processed for microscopy. The results are summarized as follows : 1) DPH seemed to cause the increased proliferation of neuroepithelial cells during the formation of neocortex, resulting in the increased thickness of neuroepithelial layger, neocortex and the increased size of hippocampus. 2) DPH also seemed to cause the degenerative changes of neuroepithelia and neuroblasts in brain and in spinal cord, resulting in the decrease of brain parenchyma and increase of the sizes of lateral ventricle, 3rd rentricle and interventricular foramina. 3) DPH brought some structural abnormalities in the formation around lateral ventricles. 4) Administration of 200 ㎎/㎏ DPH on the 8th day did not seem to exert any visible effect to the fetuses while 400 ㎎/㎏ of DPH on the 4th day showed most massive damages among other 3 subgroups. 5) The cells of spinal cord were more susceptible to the teratogenic effects of DPH than those of the brain.

A Self-Evolving Expert System Shell Using Relational Database Metaphor

김진성,이건창 한국경영정보학회 2003 한국경영정보학회 학술대회논문집 Vol.2003 No.-

익기양음해독탕의 항암 및 항전이효과에 관한 연구

김진성,윤상협,류봉하,류기원,윤성우,Kim, Jin-Sung,Yoon, Sang-Hyub,Ryu, Bong-Ha,Ryu, Ki-Won,Yoon, Seoung-Woo 대한암한의학회 2003 大韓癌韓醫學會誌 Vol.9 No.1

Objective : Ikiyangeumhaedoc-tang(IYHT) has an effect of nourishing Yin(陰) and Jin(津), and has been used to cancer patient effectively. In order to prove the anticancer's and antimetastic effect of IYHT experimentally, studies were done. Methods : We evaluated the cytotoxic activity on HT-1080 cells as well as inhibitory effect on activity of DNA topoisomerase Ⅰ, cell adhesion, cell invasion and proliferation of HUVEC cells induced by bFGF and measured the expression of mRNA(uPA, MMP2, TIMP2), p-ERK protein, recovery effect of gap junctional intercellular communication by $H_{2}O_2$ and survival time of ICR mice bearing sacoma-180. Results : IYHT showed the inhibitory effect on DNA topoisomerase Ⅰ in the concentration of $100{\mu}g/ml,\;500{\mu}g/ml$ and the dosage-dependent inhibitory effect on the adhesion of HT-1080. The concentration of 1mg/ml of IYHT inhibited 15% of adhesion compared with control. IYHT decreased the expression of uPA, but not in MMP2, TIMP2 by RT-PCR and inhibited the expression of p-ERK effectively in the concentration of more than $500{\mu}g/ml.$ IYHT recovered the inhibited gap junctional intercellular communication by $H_{2}O_2$ to the level of 60% of normal control in the concentration of $400{\mu}g/ml$ but, did not extended the mean survival time of sarcoma 180-bearing mouse. Conclusions : It was concluded that IYHT could be applied usefully for prevention and treatment of human cancer, And also experimental study for the evaluation of molecular biological study and antimetastatic research would be recommended in the near future.

UV 및 FT-NMR 분광법에 의한 혼합용매의 용매효과 변수에 관한 연구

김시준,사공열,김진성 漢陽大學校 基礎科學硏究所 1989 基礎科學論文集 Vol.8 No.-

이성분 혼합용매의 가메탄올 분해반응에 대한 속도상수를 전기전도도법으로 측정하였으며, 용매효과변수인 Gutmann의 AN값과 Taft의 분광용매화척도를 구하기 위해 4가지 지시약을 사용하여 UV/Vis 분광기의 흡수파장과 Et₃PO의 ??-chemical shift를 ET-NMR 분광기로 측정하였다. 메탄올 함량이 감소함에 따라 t-BUI보다 t-BuCI의 속도상수변화에 대한 전자받게능력이 더 강하며 t-BuCI의 들뜬상태 안정화에 영향을 주는 수소결함주게능력이 t-BuBr와 t-BuI의 초기전이상태 안정화에 미치는 용매 극성-편극성보다 AN값에 대해 7배나 더 기여했다. The rate constants of methanolysis was measured by conductance method. The solvent effect parameters which are Gutmann's acceptor number and Taft's solvatochromic scale, was determined by measuring absorption wave length for four indicators with UV/Vis spectrophotometer and ??-chemical shift for triethylphosphine oxide with FT-NMR spectrometer, respectively. As methanol content decreased, electron acceptor ability was stronger effect for rate constant variation of t-BuCI than t-Bul. And solvent hydrogen bond ability which influenced the excited state stabilization of t-BuCl, contributed seven times for acceptor number variation than solvent polarity-polarizability which influenced the early transition state stabilization of t-BuBr and t-Bul.

원심식냉매압축기 기술 및 수열원 히트펌프개발

김진성 대한설비공학회 2010 설비저널 Vol.39 No.7

대구지역 국민학교 어린이의 주의력 결핍 과잉 운동 장애 경향에 대한 선별 검사

박성찬,김창수,서혜수,박형배,김영욱,이광헌,장상렬,김진성 영남대학교 의과대학 1995 Yeungnam University Journal of Medicine Vol.12 No.1

저자들은 1994년 3월부터 5월 사이에 대구지역에 소재한 3개 국민학교 2학년 아동 538명을 대상으로 부모 평가용 ADDES-HV 척도를 이용하여 주의력 결핍 과잉 운동 장애에 대한 선별검사를 실시하여 다음과 같은 결론을 얻었다. 1. 학교별 학생간에는 주의력 결핍 과잉 운동장애 점수간에 차이가 없었다. 2. 세 학교 학생들의 남녀간 비교에서 남자가 ADDES-HV 소척도 및 전체 점수 모두에서 여자보다 유의하게 높았다(p<0.05). 3. ADHD 환아군 및 정상 대조군에서 남녀간의 ADDES-HV 척도의 점수에는 유의한 차이가 없었다. 4. 검사-재검사 신뢰도 검증에서 신뢰도 계수는 주의 산만이 0.80, 충동성이 0.69, 과잉운동이 0.63, 전체 점수 0.82로 모두 만족할 만큼 높았다. 5. 내적일관성에 의한 신뢰도 검증에서 환아군은 Cronbach α값이 0.85(p<0.05), 정상 대조군에서 0.84(p<0.05)였다. 6. ADDES-HV 척도와 DSM-Ⅲ-R 척도와의 공존타당도는 ADHD 환아군에서 0.57(p<0.05), 정상 대조군에서 0.84(p<0.05)였다. 7. ADHD 환아군과 정상 대조군간의 감별 타당도 검증에서 모두 유의하게 환아군이 높은 점수를 보였다(p<0.05). 8. ADDES-HV 척도의 환자군에 대한 판별력을 평가하기 위한 판별 분석에서 전체 판별력은 94.44%였다. 9. 정상적인 점수의 상한선인 절단점을 표준편차 1.5로 볼 때 국민학교 2학년 남학생은 80점, 여학생은 69점이었다. 따라서 ADDES-HV 척도를 한국인에 적용한 결과 신뢰롭고 타당함이 입증되었고 환자를 판별하는 능력이 우수하여 향후 ADHD에 대한 선별검사 및 조사 연구에 유용한 도구임에 입증되었다. The authors applied ADDES-HV parent evaluation scale for the purpose of screening test to 538 2nd grade elementary school students from March 1994 to May. The results were as follows : There was no differences in scores of ADHD between schools. In comparing the male and female between three school students, male students showed significant high scores (p<0.05) than female students in the score of ADDES-HV subscale and total. There was no significant differences in ADDES-HV scale between male students and female students in both ADHD patients and normal controls. In reliability test for test and retest, the reliability coefficient was higher satisfactorily and that of inattention was 0.80, impulsivity was 0.69, hyperactivity was 0.63 and the total score was 0.82. In reliability test by internal consistency, the Cronbach α a coefficient of patient group was 0.85(p 0.05) and that of normal control was 0.84(p 0.05). The Concurrent validity between ADDES-HV scale and DSM- Ⅲ-R scale was 0.57(p 0.05) in ADHD patient group and 0.84(p 0.05) in normal control group. In discriminant validity test between ADHD patient group and normal control, the ADHD patient group showed higher score(p 0.05). The total disciminant capacity of the patient group in ADDES-HV scale was 94.44%. When we regard the cut off point as standard deviation 1.5, the male student was 80 score and the female student was 69 score. In this point of view, ADDES-HV scale was proved to be the useful screening test tool for ADHD research and showed higher reliability and validity in applying to Korean subjects.

종양치료 : Deep Learning for Radiation Therapy

김진성 대한방사선방어학회 2019 대한방사선방어학회 학술발표회 논문요약집 Vol.2019 No.04