http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
위암에서 Helicobacter pylori cagA, vacA, iceA 유전자와 숙주 Interleukin-1β및 Interleukin-1 수용체 길항제 유전자 다형성
이성훈 ( Seong Hun Lee ),김태오 ( Tae Oh Kim ),이동현 ( Dong Hyun Lee ),박원일 ( Won Il Park ),김광하 ( Gwang Ha Kim ),허정 ( Jeong Heo ),강대환 ( Dae Hwan Kang ),송근암 ( Geun Am Song ),조몽 ( Mong Cho ) 대한내과학회 2006 대한내과학회지 Vol.71 No.1
Background: Both Helicobacter pylori (H. pylori) cagA, vacA, iceA genotype and host IL-1B/IL-1RN polymorphisms play a role in determining the clinical consequences of H. pylori infection. This study aimed to investigate whether there might be any combinations of H. pylori cagA, vacA, iceA genotype and host IL-1B/IL-1RN polymorphisms that are particularly associated with the occurrence of gastric carcinoma in Korean patients. Methods: This study population was comprised of 239 patients with H. pylori infection: 122 with gastric carcinoma and 117 with gastritis only. DNA was isolated from gastric biopsy sample and H. pylori cagA, vacA and iceA genotype were determined by PCR. IL-1B-511 polymorphisms were genotyped by PCR-RFLP and IL-1RN polymorphisms were analyzed with variable number of tandom repeat after PCR. Results: H. pylori cagA, vacA, and iceA genotype were not associated with an increased risk for gastric carcinoma. IL-1B-511*T carriers and IL-1RN*2 carriers did not show increased risk for gastric carcinoma. On combination of bacterial/host genotypes, cagA+/IL-1B-511*T carriers and cagA+/IL-1RN*2 carriers, vacA s1/IL-1B-511*T carriers, vacA s1/IL-1RN*2 carriers, vacA m1/IL-1B-511*T carriers, vacA m1/IL-1RN*2 carriers, iceA1/IL-1B-511*T carriers, iceA1/IL-1RN*2 carriers showed no increased risk of gastric carcinoma. Conclusions: Combined H. pylori cagA, vacA, iceA genotype and host IL-1B/IL-1RN polymorphisms shows no increased risk of gastric carcinoma. Therefore, it seems other endogenous or exogenous factors may play more important role in the development of gastric carcinoma in Korean.(Korean J Med 71:24-37, 2006)
박원형(Won Hyung Park),김송옥(Song Ok Kim),이내현(Nae Hyun Lee),박영민(Young Min Park),정재우(Jae Woo Chung),장서일(Seo Il Chang),류훈재(Hunjae Ryu) 한국소음진동공학회 2024 한국소음진동공학회 논문집 Vol.34 No.2
The purpose of this study was to calculate a correction value for estimating the noise levels in the classrooms of a newly planned school for use in environmental-impact and educational-environment assessments. The study involved measuring and analyzing the outdoor and indoor noise levels in the classrooms of 32 elementary and middle schools located in Yongin-si and Seongnam-si, Gyeonggi-do. In each of the 55 cases, the noise level was measured at a receiver point located 1 m in front of the school building facade. At the same time, the indoor noise levels were measured at 2 receiver points located 1 m in front of a window and 1 m in front of a hallway in the classroom, with all the windows open. These measurements were averaged to calculate the noise level in the classroom. Then, a correction value was calculated based on the difference between the outdoor noise level and noise level in the classroom. Therefore, by considering this correction value for the estimated outdoor noise level during the planning stage, the noise level in the classroom could be determined. The final calculated correction values were −6.4 dB(A) for the parallel type, −6.9 dB(A) for the vertical type, and −6.5 dB(A) for the mixed type. The use of these correction values will reduce the noise impact and resource wastage that could result from over- or underestimating, creating a calm and reasonable educational environment.
사람의 자궁 내막 조직내에서 Phosphodiesterase IV Inhibitor에 의한 IL-12의 조절 및 이에 따른 Th-1, Th-2 cytokine 분비 양상의 변화
박원일 ( Park Won Il ),김은경 ( Kim Eun Gyeong ),고덕성 ( Go Deog Seong ),홍서유 ( Hong Seo Yu ),나중열 ( Na Jung Yeol ),김대운 ( Kim Dae Un ),신정환 ( Sin Jeong Hwan ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.8
목적 : 사람의 초기 임신 과정에서 phosphodiesterase type IV inhibitor인 rolipram이 탈락막내 IL-12를 억제하고 이에 따라 Th-1 계열의 cytokine이 감소하고 Th-2 cytokine이 증가하는지를 규명하는 것이 목적이다. 연구 방법 : 임신 12주 이전에 계류 유산으로 진단받은 10명과 정상임신에서 임신 중절 수술을 시행받은 10명에서 자궁 소파술을 통하여 탈락막 조직을 획득한 후 조직을 rolipram으로 Objective : To assess the capability of phosphodiesterase type IV inhibitor (rolipram) to suppress IL-12 in human decidua and the subsequent changes of Th-2 cytokine (IL-10) and Th-1 cytokine (TNF-α). Methods : Decidual tissues of 10 first-trimester pregn
박경배,정우석,김정일,정근원,이광배,김현욱,Park, Gyeong-Bae,Jeong, U-Seok,Kim, Jeong-Il,Jeong, Geun-Won,Lee, Gwang-Bae,Kim, Hyeon-Uk 한국정보처리학회 1995 정보처리논문지 Vol.2 No.5
Most fractal image codings using fractal concept require long encoding time because a large amount of computation is needed to find an optimal affine transformation point. Such a problem can be solved by designing a block classifier fitted to characteristics of image blocks. In general, it is possible to predict more precise and various types of blocks in frequency domain than in spatial domain. In this paper, we propose a block classifier to predict the block type using characteristics of DCT(Discrete Cosine Transform). This classifier has merits to enhance the quality of decoded images as well as to reduce the encoding time meeting fractal features. AC coefficient values in frequency domain make it possible to predict various types of blocks. As the results, the number of comparisons between a range block and the correspoding domain blocks to reach an optimal affine transformation point can be reduced. Specially, signs of DCT coefficients help to find the optimal affine transformation point with only two isometric transformations by eliminating unnecessary isometric transformations among eight isometric transformations used in traditional fractal codings. 프레탈을 이용한 대부분의 영상 부호화하는 최적의 유사 변환점을 얻기 위해서 방대한 비교 연산이 필요하여 장시간의 부호화 시간이 요구되는 문제점이 있다. 이러 한 문제는 블럭특성에 적합한 블럭 분류기를 설계함으로써 해결할 수 있다. 일반적으 로 공간 영역에서 보다는 주파수 영역에서 좀더 정확하고 다양한 블럭의 형태를 예측 할 수 있다. 본 논문에서는 DCT특성을 이용하여 블럭의 형태를 예측할 수 있는 블럭 분류기를 제안하였다. 이 분류기는 프랙탈 특징과 부합하여 부호와 시간을 줄임과 동 시에 복원된 영상의 화질을 높이는 장점이 있다. 주파수 영역에서의 AC 계수의 크기는 다양한 블럭 형태를 예측 가능하게 함으로써 최적의 축소 변환점을 얻기 위한 도메인 블럭과 레인지 블럭간에 비교 연산을 줄일 수 있다. 특히 DCT 각 계수의 부호값은 프 랙탈 적용을 위한 8가지 변환에 대해 불필요한 변환을 생략함으로써 2가지 변환만으로 도 축소 변환점을 찾는 장점을 나타낸다.
이동 대차 위에 고정되고 집중질량을 갖는 유연보의 운동해석
박상덕,정완균,염영일,이재원,Park, Sang-Deok,Jeong, Wan-Gyun,Yeom, Yeong-Il,Lee, Jae-Won 대한기계학회 1999 大韓機械學會論文集A Vol.23 No.11
In this paper, the equations of motion of a Bernoulli-Euler cantilever beam fixed on a moving cart and carrying a lumped mass concentrated at an arbitrary position along the beam is derived. The motion of the beam-mass-cart system is analyzed through unconstrained modal analysis, and a unified characteristic equation for calculating the natural frequencies of the system is obtained. The changes of natural frequencies and the corresponding mode shapes with respect to the changes in mass ratios of the system and to the concentrated position of the lumped mass are investigated with the frequency equation, which can be generally applied to this kind of systems. The exact and assumed-mode solutions including the dynamics of the base cart are obtained, and the open-loop responses of the system by arbitrarily designed forcing function are given by numerical simulations. The results match well with physical phenomena even at the extreme cases where the concentrated mass is attached to the bottom and to the top of the beam.
박상일 ( Sang Ill Park ),최형일 ( Hyung Il Choi ),정경훈 ( Kyung Hoon Cheong ),염동익 ( Dong Ick Yeom ),정원삼 ( Won Sam Jeong ),김난희 ( Nan Hee Kim ) 조선대학교 공학기술연구원 2009 공학기술논문지 Vol.2 No.1
Suggesting countermeasures against traffic noise, the result of modeling the noise level distribution of the apartment using RAYNOISE is as follow. l. Characteristic of Noise Level Attenuation as per Frequency of Apartment Space Comparing the difference of measured values on the balcony and in the enter of the living room had a minus value for an applicable value of 62%, which means the balcony is the path where the, sound is being passed. Because the center of the living room is a closed space, it is considered that the sound became higher by reflection and diffraction of sound in the living room. Change of frequency. Attenuation as per space in the 1st, 5th and 8th floors showed the attenuated condition becoming greater as frequency rose by 1 kHz, and it became greater on the higher floor at 31.5 Hz and 63 Hz. On the 11th floor, 63 Hz appeared to have a higher attenuated condition, and it was attenuated similarly in general. 2. Modeling Using RAYNOISE for Noise Level and Characteristics of Frequency in Apartment Space Noise levels measured on the exterior wall of the apartment, on the balcony and in the center of a living room revealed to be higher in low frequency bandwidths in the lower floors. They decreased on the higher floors including the 7th and 8th floors, increased then decreased again on the 9th floor. The noise level in the living room was 45.3 dB(Z), which appeared to be higher than that of the balcony(41.1 dB(Z)). It was also higher than the balcony in all frequency bandwidths. We then compared noise level in two cases while the window of the living room was open. The first case kept the window of balcony 2(bed room 2 directions) closed while the window of balcony 1(living room directions) remained open. The second case kept the window of balcony 1(living room directions) closed while the window of balcony 2(bed room 2 directions) remained open. The noise level in the center of the living room was 45.0 45.6 dB(Z) in the former case and 28.5 29.5 dB(Z) in the latter, thus showing the attenuated effect of f 5.9 16.6 dB(Z). The attenuated effect appeared to be 16.9 17.9 dB(A) characteristics of A.
체외 수정으로 임신된 쌍태아 중 발육 부전을 가진 태아에서 발견된 제대 막양 부착
박원일(Won Il Park),남종윤(Jong Yun Nam),김주오(Joo Oh Kim),주종은(Jong Eun Joo) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.10
To date, velamentous insertion of umbilical cord has not been a topic of interest. It has regarded as a phenomenon without clinical significance rather than a disease. Furthermore, antenatal diagnosis of velamentous insertion has been thought as an impossible task. Recently, some investigators raised the clinical importance of velamentous insertion of umbilical cord, especially in multiple gestation. Below we report on a case of velamentous insertion of umbilical cord in discordant twins conceived by in vitro fertilization. The aim of this report is to emphasis the clinical significance of velamentous insertion of umbilical cord in twin gestation. The velamentous insertion of umbilical cord can cause twin-twin transfusion syndrome (TTTS) and pseudo TTTS. Besides, the possible correlation between the high incidence of velamentous insertion of umbilical cord and discordancy in twin pregnancy obtained by in vitro fertilization is also discussed in this report in conjunction with the case.