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정대봉,박동호,김명철,문경래,박영봉,박상기 朝鮮大學校 附設 醫學硏究所 1997 The Medical Journal of Chosun University Vol.22 No.1
A single umbilical artery is present in about 2/1,000 births. Approximately 10-15% of Infants with a single umbilical artery have congenital abnormalities, usually more than one, chromosomal abnormalities, fetal growth retradation, prematurity, perinatal mortality and many such infants are stillborn or die shortly after birth. We experienced two cases of single umbilical artery. One had congenital malformation of left ectopic fused kidney, but hadn't cytogenetic abnomality. The other had cytogenetic abnormality of 46XY,inv(6)(q11q16), morphologic abnormalities of polydactyly & lower palpebral fissure and congenital abnormalities of tracheoesophageal atresia & TOF. We reported these cases with a related literature review.
김용배,정대봉,조수형,조남수,박영봉,박상기,김춘호,양은석,문경래 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3
Drowning is the second most common cause of accidental death of children in Korea. But the study of near-drowning is very rare in Korea. The purpose of our study is to determine the factors that may influence survival on the basis of submersion time, consciousness state upon admission to hospital, the kinds of water, laboratory findings and neurological outcomes. The survey was performed by a retrospective cohort study on 28 near-drowning victims of less than 15 years of age who were admitted to the emergency room in the Chosun University Hospital between May 1988 & May 1997. The results were as follows :1)Sex distribution was 22 males and 6 females. 2) Submersion time was <5 minutes in 9 cases, 5-9 minutes in 6 cases, 10-14 minutes in 5cases, 15-19 minutes in 3 cases, ≥20 minutes in 5cases. 3) Comatose patients upon arrival were 6/7 cases in the death group(86%) and 2/21 cases in the improved group(10%). They had unfavorable outcomes(P<0.05). 4) The first PH value was mean 7.02±0.12 in the death group and mean 7.31±0.13 in the improved group. There was a statistically significant difference between the death and the improved group(P<0.05) 5) The patients who gad increased blood glucose concentration were all 7 cases in the death group and 12/22 cases in the improved group(54%). The mean blood glucose concentration was mean 424.7235.6㎎/㎗ in the death group and mean 140.182.7㎎/㎗ in the improved group. There was a statistically significant difference between the death and the improved group(P<0.05). 6) The patients who had pulmonary edema upon arrival were all 7 cases in the death group and 1/21 cases in the improved group(46%). They had unfavorable outcomes(P<0.05). 7) The patients who had been submerged more than 15 minutes were all 7 cases in the death group and 6/21 cases in the improved group(5%). They had unfavorable outcomes(P<0.05). We conclude that pediatric victims of near-drowning can be assigned to high or low likelihoods of unfavorable our outcomes with the use of five variables ; comatose mentation upon arrival decreased initial blood pH, increased initial blood glucose concentration, pulmonary edema, and maximum submersion time estimated longer than fiften minutes. This prediction rule may be useful if it can be validated in another cohort.
코로나 플라즈마 처리에 의한 HDPE 표면의 개질에 관한 연구
최진숙,전종탁,정봉규,이근대,문명준,이종무 釜慶大學校 2001 釜慶大學校 論文集 Vol.6 No.-
We are able to generate the stable plasma in open air and nitrogen using a corona plasma treatment system(CPTS) with a high voltage. This was applied to treat the surface of rather non-polar HDPE(High Density Polyethylene) intended for the improvement of adhesion of over-coated layers such as coatings, printing inks. The surface tension of HDPE was significantly improved by the CPTS. The characteristics of surface layer were evaluated by means of contact angle measurement, ATR-FT/IR spectroscopy, and it was found that functional groups were introduced into the surface layer of the HDPE. The use of nitrogen was increased the surface tension of the HDPE from 33.8 mJ/m^2 to 66.56 mJ/m^2, and highly effective method of HDPE surface modification could be realized.
경제적인 Si 잉곳 생산을 위한 poly-Si 미세분말의 성형과 용해주조기술
문병문(Moon, Byung-Moon),김봉환(Kim, Bong-Hwan),신제식(Shin, Je-Sik),이상목(Lee, Sang-Mok),박기성(Park, Gi-Seong),김대석(Kim, Dae-Suk),김기영(Kim, Ki-Young) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.06
In this study, the consolidation and casting processes of fine Si powders, by-products of making high purity Poly-Si rods in the current method, were systematically investigated for use as economical solar-grade feedstock. Morphology, size, and contamination type of the poly-Si fine powders were inspected by combined analysis of SEM, particle size analyzer, and FT-IR. Poly-Si powder compacts were tried to fabricate by a consolidation process without a binding agent and then their density ratio and strength were evaluated. Finally, the electrical resistivity of the specimens prepared by an electromagnetic casting method was examined for purity assessment.
Effects of electroacupuncture on oxaliplatin-induced neuropathic cold hypersensitivity in rats
Moon, Hak Jin,Lim, Bong-Soo,Lee, Dae-Il,Ye, Min Sook,Lee, Giseog,Min, Byung-Il,Bae, Hyunsu,Na, Heung Sik,Kim, Sun Kwang Springer-Verlag 2014 JOURNAL OF PHYSIOLOGICAL SCIENCES Vol.64 No.2
This study investigated whether and how electroacupuncture (EA) attenuates cold hypersensitivity (allodynia) in a rat model of oxaliplatin-induced neuropathic pain. Cold allodynia [evaluated by immersing the tail into cold water (4 A degrees C) and measuring the withdrawal latency] was induced 3 days after an oxaliplatin administration (6 mg/kg, i.p.). EA stimulation (2/100 Hz, 0.3-ms pulse duration, 0.2-0.3 mA) was delivered to ST36 acupoint or non-acupoint for 20 min. Low-frequency (2 Hz) EA at ST36 relieved cold allodynia more effectively than high-frequency EA at ST36 or low-frequency EA at non-acupoint. Naloxone (opioid antagonist, 2 mg/kg, i.p.) completely blocked such EA-induced anti-allodynia, whereas phentolamine (alpha-adrenergic antagonist, 2 mg/kg, i.p.) did not. Moreover, plasma beta-endorphin levels significantly increased right after the end of EA and subsequently decreased. These results indicate that low-frequency EA at ST36 in rats has a marked relieving effect on oxaliplatin-induced cold allodynia that is mediated by the endogenous opioid, but not noradrenergic, system.
HCC : PE-076 ; A case of ruptured embryonal sarcoma of the liver in an adult
( Bong Soo Kim ),( Jong Pil Park ),( Byung Sik Hwang ),( Dong Wook Lee ),( Yun Jin Chung ),( Hyang Eun Seo ),( Dae Jin Kim ),( Jae Kwon Jung ),( Chang Keun Park ),( Hyunsoo Kim ),( Sang Moon Lee ),( K 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.1
Background: Embryonal sarcoma is a rare primary undifferentiated malignant tumor of the liver especially in adults. It has been recognized as an aggressive tumor with unfavorable prognosis. Case: We experienced a case of ruptured embryonal sarcoma in a 64-year-old female who presented with right upper abdominal pain. Contrast enhanced CT scan revealed hemoperitoneum and a low attenuated large (12.2*7.5cm) multiseptated cystic mass that was suspected to be ruptured in the right lobe of liver. The mass was showed hypovascular pattern on the hepatic angiography. Abdominal USG and MRI demonstrated almost same results along with CT scan. PET-CT demonstrated huge cystic liver mass with diffuse mild FDG uptake (SUVmax=3.88) around the rim. The patient presented aggravating abdominal pain and we detected rapidly increased size of cystic liver mass by follow up CT scan. The patient underwent surgical resection. Gross findings of surgical specimen revealed ruptured multilobulated cyst filled with blood clots. Histological examination showed relatively well-defined mass with distinct fibrous capsule. Main tumor mass revealed patternless atypical spindle cells proliferation with distinct pleomorphic or multinucleated tumor cells with prominent intracytoplasmic hyaline globules which were positive in PAS stain. Immunohistochemical stain was not helpful for diagnosis but desmin, smooth muscle actin were positive in reactive fibroblastic proliferation area. We diagnosed that the tumor was embryonal sarcoma. The patient dischared without serious complications and is on regular follow up. Conclusions: Embryonal sarcoma of the liver is a rare disease in adults and it has poor prognosis. Therefore, precautious and aggressive approach to management plans will provide accurate diagnosis and improvement of prognosis.
A STUDY ON DEVELOPMENT OF MONITORING &ASSESSMENT MODULE FOR SITES
BONG YO YOON,박주완,DAE JUNG KIM,CHANG-LAK KIM,SE-MOON PARK 한국원자력학회 2006 Nuclear Engineering and Technology Vol.38 No.6
As the development of total management systems for sites along with site environmental information is becoming standard,the system known as the Site Information and Total Environmental database management System (SITES) has been developedover the last two years. The first result was a database management system for storing data obtained from facilities, and a sitecharacterization in addition to an environmental assessment of a site. The SITES database is designed to be effective andpractical for use with facility management and safety assessment in relation to Geographic Information Systems. SITES is atotal management program, which includes its database, its data analysis system required for site characterization, a safetyassessment modeling system and an environment monitoring system. It can contribute to the institutional management of thefacility and to its safety reassessment. SITES is composed of two main modules: the SITES Database module (SDM) and theMonitoring & Assessment (M&A) module [1]. The M&A module is subdivided into two sub-modules: the Safety AssessmentSystem (SAS) and the Site Environmental Monitoring System (SEMS). SAS controls the data (input and output) from theSITES DB for the site safety assessment, whereas SEMS controls the data obtained from the records of the measuring sensorsand facilities. The on-line site and environmental monitoring data is managed in SEMS. The present paper introduces theprocedure and function of the M&A modules.
Mobile Content Copyright Protection based on Watermarking Protocol
Dae-Yeop Im,Seong-Geun Kwon,Suk-Hwan Lee,Bong-Joo Jang,Kwang-Seok Moon,Ki-Ryong Kwon 한국멀티미디어학회 2011 한국멀티미디어학회 국제학술대회 Vol.2011 No.-
This paper presents a watermarking method for copyright protection and illegal copy prevention of mobile contents. The proposed method embeds copyright information and user’s phone number into spatial domain and encryption domain of mobile animation data based on Buyer-Seller watermarking protocol. Furthermore, we insert user’s operation key so that only authorized user can play 3D animation game in mobile device. From experimental results, we verified that the proposed method is capable of copyright protection and illegal copy prevention since the watermark can be well extracted against geometrical attacks.