http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정을섭,김성청,김태봉,소의열,이근상 한국공작기계학회 2002 한국생산제조학회지 Vol.11 No.3
In this study, experiments were carried out to investigate the characteristics of grinding and wear process of diamond wheel for ceramic materials. Normal component of grinding resistance of AL_2O_3 was less than that of Si_3N_4 and ZrO_2. This seems to be the characteristics of ceramic tools on work pieces both of high hardness. For the case of Si_3N_4 and ZrO_2 as the mesh number of wheel increases, the surface roughness decreases. For the case of Al_2O_3, the surface roughness does not decreases. Specific grinding energy decreases as the material removal rate per unit time increases. For the case of Si_3N_4 and ZrO_2, grinding is carried out by grain shedding process due to brittle fracture.
서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
P098 A clinical study on herpes zoster during the last 5-year-period (2011-2015)
( Jeong Won Jo ),( Hae Bong Jeong ),( Yun Sun Moon ),( Do Seon Jeong ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2
<div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div> Background: Herpes zoster is a common dermatologic disease. But there has not been any report on the clinical characteristics of herpes zoster in the Province of Gyeongsangnam-do. Objectives: The purpose of this study was the elucidation of the clinical characteristics of herpes zoster in the Province of Gyeongsangnam-do. Methods: The study was conducted between 2011 and 2015 at our hospital outpatients. 901 patients with herpes zoster were evaluated in regard to age, sex, dermatomic distributions, associated diseases and complications. Results: Out of 901 cases, 396 were males and 505 were females. The maximum incidence was in the over 70 year-old group (26.4%). The most frequent involved dermatome was the trigeminal dermatome (28.7%). Associated diseases were observed in 679 patients (75.3%), which included hypertension (21.2%), malignancy (11.4%) and so on. Out of 901 patients, 443 (49.2%) developed complications. The most common complication was postherpetic neuralgia (27.1%). It is noteworthy that skin edema was accompanied from 43 patients (4.8%). Fourty patients showed edematous change on herpes zoster lesion. But other 3 patients showed facial edema in spite of involving herpes zoster in other area. Conclusion: Most of the results are similar to those previously reported, except for a higher incidence in trigeminal dermatome. The most interesting part of this study is herpes zoster can cause skin edema. We need to take further studies in future by others to explain causes in detail.
A caes of eruptive lichen planus
( Jeong Won Jo ),( Hae Bong Jeong ),( Yun Sun Moon ),( Do Seon Jeong ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1
Eruptive lichen planus is a rare variant of lichen planus and variety of rapidly spreading and extensive form of lichen planus. Lichen planus is a common and chronic inflammatory disease of the skin and mucous membranes. It typically manifests as pruritic, faintly erythematous to violaceous, flat-topped, polygonal papules distributed mainly over the flexural areas of wrists, arms, and legs. It usually resolves after a variable period of time, ranging from a few months to years, leaving behind pigmentation and/or scarring. The exact pathogenesis of lichen planus is not clear. Association of a chronic active hepatitis C virus infection with lichen planus and triggering of lichen planus following a hepatitis B virus vaccination has been previously described. So we report the eruptive lichen planus in patients who have received treatment with hepatitis B infection.
[P336] Generalized cutaneous angiosarcoma associated with multiple myeloma
( Jeong Won Jo ),( Young Bin Shin ),( Hae Bong Jeong ),( Yun Sun Moon ),( Do Seon Jeong ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.1
Cutaneous angiosarcoma is a rare, malignant, vascular neoplasm of the skin commonly diagnosed in the head and neck regions. It arises infrequently in the lower extremity. In most cases, the exact etiology of cutaneous angiosarcoma is unclear. Recently, gene amplifications, especially MYC gene, have been identified as a new etiopathogenesis of angiosarcoma. MYC amplification may induce aberrant angiogenic phenotypes allowing the onset of the malignancy. Meanwhile, in multiple myeloma, MYC is activated and contributes to the malignant phenotype. Therefore, there is a possibility that MYC gene might be the common cause of angiosarcoma and multiple myeloma. Herein, we present the rare case of cutaneous angiosarcoma on lower extremity accompanied by multiple myeloma. An 85-year-old woman visited our department with multiple brownish to black colored nodules with hyperkeratotic crust, which were 0.3 to 0.8 cm in diameter, on the both feet and toes. The excisional biopsy was performed and a diagnosis of cutaneous angiosarcoma was made. At the time of visit, anemia, azotemia, proteinuria and hematuria were found. Immunofixation electrophoresis and bone marrow were performed, so multiple myeloma was diagnosed. We suspected carefully that MYC gene might be the common cause of angiosarcoma and multiple myeloma.
P191 The clinicopathologic study of multiple dermatofibroma
( Jeong Won Jo ),( Hae Bong Jeong ),( Yun Sun Moon ),( Do Seon Jeong ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2
<div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div> Background: Dermatofibromas are common, benign, painless dermal nodules. Although cases of solitary dermatofibromas are common, multiple dermatofibromas are rare and there is no explainable theory in healthy people. Objectives: This study was conducted to obtain better understanding of the clinicopathologic features of multiple dermatofibroma. Methods: This is a retrospective study of multiple dermatofibroma pathologically diagnosed at our hospital over a 12-year period (2004~2015). Clinicopathologic features of 22 patients, 108 lesions were evaluated. The sex, age, number of lesions, site, symptoms and histopathological finding are included. Results: Of the 22 patients, sixteen (72.7%) were female and six (27.3%) were male. mean age was 39.1(±11.5) years old. The number of lesions ranged 2 to 20 and the mean was 4.9. The most common predilection sites were lower extremities (42.6%). All cases treated by excisional biopsy. According to the histopathological finding, the most common histological subtype was fibrocollagenous (66.7%). Most of the cases were extended dermis (62.5%) layer. Mitotic activity was not definite in majority of cases. The major infiltrated inflammatory cells were lymphocyte (75.2%). Conclusion: Multiple and solitary dermatofibroma have clinical and pathological consistency except for numbers of lesions.
Prurigo nodularis with HIV-infected patient
( Jeong Won Jo ),( Hae Bong Jeong ),( Yun Sun Moon ),( Do Seon Jeong ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1
Prurigo nodularis (PN) is a chronic dermatosis of unknown etiology characterized by discrete, intensely pruritic, symmetric, papulonodular lesions primarily on the extensor surfaces of the extremities. It is commonly seen in persons infected with human immunodeficiency virus (HIV) and with low CD4 counts. The pathophysiology of prurigo nodularis in the HIV infected population is particularly interesting and has not been investigated thoroughly. Prurigo nodularis is usually associated with HIV because it is easy to diagnose prurigo nodularis in HIV patients. However, it is difficult to diagnose HIV infection in a patient prurigo nodularis. We herein, report a case in confirming the HIV infection diagnosed with prurigo nodularis.
( Jeong Won Jo ),( Hae Bong Jeong ),( Yun Sun Moon ),( Do Seon Jeong ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2
<div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div> Background: Caffeine intake and consumption of coffee were estimated from food frequency questionnaires results these are increasing. Caffeine may repair skin damage induced by excessive exposure to ultraviolet light. In previous report of the associations between coffee consumption and incidence of these skin cancers, the result that the consumption of neither caffeinated nor decaffeinated coffee was associated with basal cell carcinoma and squamous cell carcinoma (SCC). Objectives: In this study, our aim is to describe the mechanisms of the anti-angiogenic effect of caffeine in human umbilical vein endothelial cells (HUVECs) and head and neck squamous cell carcinoma (HNSCC). Methods: Matrigel assays were used to investigate the effect of caffeine on angiogenesis at cell migration and wound healing and proliferation assays using HUVECs and HNSCC. Results: Caffeine was found to inhibit blood vessel formation dose-dependently and to inhibit the proliferation of HUVECs time- and dose-dependently. The apoptosis examination was used by western blotting and immunofluorescence staining. Conclusion: Caffeine was found to inhibit blood vessel formation dose-dependently and to inhibit the proliferation of HUVECs on the same manners. There is no satisfactory enhancement and/or inhibition on proliferation of HNSCC.
Post-inflammatory hyperpigmentation after treatment of deep fungal infection
( Jeong Won Jo ),( Hae Bong Jeong ),( Yun Sun Moon ),( Do Seon Jeong ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1
Dermatophytes usually infect the keratinised layers of the epidermis, hair follicles and nails. The fungi rarely enter the dermis or subcutaneous fat tissue and very rarely cause deep or subcutaneous dermatophytosis. In general, deep fungal infection develops via two routes: (i) subcutaneous infection caused by direct fungal penetration of the dermis or subcutis following traumatic injury; and (ii) cutaneous fungal involvement by hematogenous or lymphatic spread following the inoculation or infection of another organ (systemic dissemination). After treatment of deep fungal infection in some cases showing a healed scar with atrophy, and post-inflammatory hyperpigmentation. The rare pigment deposition was caused due to hemociderin. So we report a case that the lesions improved with post-inflammatory hyperpigmentation.