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Zhang, Heyao,He, Zhao,Song, Jinliang,Liu, Zhanjun,Tang, Zhongfeng,Liu, Min,Wang, Yong,Liu, Xiangdong Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.6
Irradiation-induced damage of binderless nanoporous-isotropic graphite (NPIG) prepared by isostatic pressing of mesophase carbon microspheres for molten salt reactor was investigated by 3.0 MeV He<sup>+</sup> irradiation at room temperature and high temperature of 600 ℃, and IG-110 was used as the comparation. SEM, TEM, X-ray diffraction and Raman spectrum are used to characterize the irradiation effect and the influence of temperature on graphite radiation damage. After irradiation at room temperature, the surface morphology is rougher, the increase of defect clusters makes atom flour bend, the layer spacing increases, and the catalytic graphitization phenomenon of NPIG is observed. However, the density of defects in high temperature environment decreases and other changes are not obvious. Mechanical properties also change due to changes in defects. In addition, SEM and Raman spectra of the cross section show that cracks appear in the depth range of the maximum irradiation dose, and the defect density increases with the increase of irradiation dose.
정준민,서광석,이영은,한희정,한진희,김혜정,신터전,김현정,염광원,장주혜,Chung, Jun-Min,Seo, Kwang-Suk,Yi, Young-Eun,Han, Hee-Jung,Han, Jin-Hee,Kim, Hye-Jung,Shin, Teo-Jeon,Kim, Hyun-Jeong,Yum, Kwang-Won,Chang, Ju-He 대한치과마취과학회 2008 Journal of Dental Anesthesia and Pain Medicine Vol.8 No.1
Background: Cerebral palsy (CP) is non-progressive disorder of motion and posture. In CP patient, there are difficulties in dental treatment because of uncontrolled movement of limb and head, and conjoined disabilities such as cognitive impairment, sensory loss, seizures, communication and behavioral disturbances. It is reported that CP patients have high incidence in caries and a higher prevalence of periodontal disease. But, despite the need for oro-dental care, these patients often are unlikely to receive adequate treatment without sedation or general anesthesia because of uncontrolled movements of the trunk or head. Methods: We reviewed the 58 cases of 56 patients with CP who underwent outpatient general anesthesia for dental treatment at the clinic for the disabled in Seoul National University Dental Hospital. Results: The mean age was 19 (2-54) years. The number of male patient was 40 and that of female was 18. They all had severe spastic cerebral palsy and 22 had sever mental retardation, 15 epilepsy, 8 organic brain disorder, 1 blindness, 2 deafness and cleft palate. For anesthesia induction, 14 cases was needed physical restriction who had sever mental retardation and cooperation difficulty, but 44 cases showed good or moderate cooperation. Drugs used for anesthesia induction were thiopental (37 cases), sevoflurane (14 cases), ketamine (3 cases ) and propofol (4 cases). All patients except one were done nasotracheal intubation for airway management and 4 cases were needed difficult airway management and 1 patient already had tracheostomy tube. Mean total anesthetic time was $174{\pm}56$ min and staying time at PACU was $88{\pm}39$ min. There was no death or long term hospitalization because of severe complications. Conclusion: If general anesthesia is needed, pertinent diagnostic tests and workup about anomaly, and appropriate anesthetic planning are essential for safety.
문장원,홍혜경,민병윤 경남대학교 환경문제연구소 1995 환경연구 Vol.17 No.-
During the past two years. We surveyed the monthly variations of DO, PH, COD, TSS, PO4--P, TIN in Noksan. It seemed that the concentrations were gradationally increasing in all parameters as the landfill proceeding. It is the result that the influents of soils and sands were naturally increased as the landfill proceeding and organisms and nutrients of land are influenced to the ocean by increasing a rainfall.
서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)
김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2
Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.
He-Ryeon Min,Bo Young Jeon,Ha Na Seo,Min Ju Kim,Jun Cheol Kim,Joon Kuk Kim,Doo Hyun Park 한국식품과학회 2009 Food Science and Biotechnology Vol.18 No.6
Electric polarity of working electrode and counter electrode was periodically switched at the intervals of 30 sec. Electric current generated by anodic and cathodic reaction of working electrode was reached to +30 and -12 ㎃ in low intensity pulsed electric field (LIPEF). The yeast growth, ethanol production, and malate consumption in the initial cultivation time were more activated in the LIPEF than the conventional condition (CC). Polyphenol, total phenolic contents (TPC), and total flavonols (TF) were gradually decreased in all cultivation conditions during incubation for 2 weeks but antioxidation activity was not. TF was significantly lower in 3 and 4 V of LIPEF than CC and 2 V of LIPEF; however, the polyphenol, TPC, and antioxidation activity were a little influenced by the LIPEF. After ripening of the winemaking culture for 15 days, polyphenol, TPC, and TF were a little increased but the antioxidation activity was not.
Optimization of Structural Dynamic Characteristics by Local Modification
He, Ji Min,Li, Tao 대한기계학회 1996 International Sessions in Celebration of the 50th Vol.1 No.1
This paper discusses several methods used to modify the mass or stiffness properties of a synamic system in order to optimise its characteristics.
FCP 15 : A case of extranodal NK/T cell Lymphoma mimicking refractory Behcet`s disease
( He Min Lee ),( Do Young Kim ),( Min Ju Choi ),( Suh Yun Cho ),( Zhen Long Zheng ),( Soo Hee Kim ),( Dong Sik Bang ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.1
A 39-year-old female was diagnosed with complete type Behcet’s disease (BD) having symptoms of oral ulcer, genital ulcer, uveitis and erythema nodosum-like skin lesions. Colchicine, azathioprine or mycophenolate mofetil and systemic corticosteroid were prescribed to reduce the symptoms. However, active uveitis and cutaneous lesions persisted despite treatment. Under suspicious lung involvement of BD, infliximab was started to lessen systemic inflammation yet wihout much effect. Subsequent lung biopsy to investigate pulmonary infiltrate revealed opportunistic infection by Pneumocystis jiroveci. After stopping infliximab infusion, prednisolone in 1mg/kg/day dose was maintained with other immunosuppressants. Surprisingly, cytological specimen from palliative surgery to improve visual acuity discovered a concurrent involvement of vitreoretinal large cell lymphoma. Additional biopsy performed on hard palate ulceration which initially thought to be a symptom of BD revealed unexpected extranodal NK/T cell lymphoma involvement, and retrospective review of pathological slides of skin also revealed the presence of lymphoma. BD should be always suspected of its final diagnosis when systemic vasculitic inflammation persists without any plausible cause. If symptoms are not alleviated even with intense systemic treatments, other suspicious diagnosis including malignancy should be doubted in practice.