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RISS 인기검색어
- 검색키워드
- 저자 : 김재형 ( Jae Hyung Kim ) (검색결과 442 건)
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김재형,최재완,윤영희,김중곤.Jae-Hyung Kim. M.D.. Jae-Wan Choi. M.D.. Young-Hee Yoon. M.D.. June-Gone Kim. M.D. 대한안과학회 2005 대한안과학회지 Vol.46 No.4
Purpose: To investigate the correlation between ultrasonographic findings and clinical features of infectious endophthalmitis. Methods: We analyzed ultrasonographic findings of 38 eyes of 36 patients who had been diagnosed as having infectious endophthalmitis with various etiologies. The correlation between ultrasonographic findings and clinical features such as initial and final visual acuities were studied. Results: Fourteen eyes were diagnosed with endogenous endophthalmitis and 11 eyes with postoperative endophthalmitis. Posterior vitreous opacity in the endophthalmitis secondary to keratitis was more severe and subhyaloid opacity in the traumatic endophthalmitis was less severe. Coagulase negative staphylococcus was the most common causative agents. Subhyaloid opacity in the eyes where cultures were not performed, was more severe than in those where coagulase negative staphylococcus was identified. Among the various ultrasonographic findings only the degree of the posterior vitreous opacity was correlated with the initial visual acuity, and none of the findings was significantly related with the final visual acuity. Treatment modalities included intravitreal antibiotics injections in 13 eyes, immediate vitrectomies and antibiotics injection in 6 eyes, conversion to vitrectomy after antibiotics injection in 17 eyes, and eviscerations in 2 eyes. The grades of posterior vitreous opacity of the patients with conversion to vitrectomy after antibiotics injection were lower than those of the other groups. Conclusions: Ultrasonographic findings might be a useful factors in the diagnosis and the determination of treatment modality and may therefore be helpful in the prognosis of patients with suspected infectious endophthalmitis.
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김재형,김병국,최홍란,Kim, Jae-Hyung,Kim, Byung-Gook,Choi, Hong-Ran 대한안면통증구강내과학회 2001 Journal of Oral Medicine and Pain Vol.26 No.2
The purpose of this study was to identify the difference of vertical movement of mandible according to Angle's molar relationship and by skeletal factors affect to vertical movement of mandible. 172(age ranged from 20 to 30) subjects who go to college within territory of Kwangju city without any experience of temporomandibular disorder, extraction and orthodontic treatment. were selected for this study. The subjects were classified into class I(male:30, female:49), class II(male:18, female:24) and class III(male:18, female:33) according to Angle's molar relationship. The distance was measured between incisal edge of maxillary and mandibular central incisor and between bottom of central fossa of maxillary and mandibular 1st molar with ruler. The arch length and width were measured on the diagnostic cast. Cephalometrics were taken and then traced. Landmarks were identified and analyzed. 1. Maximal interincisal opening of male is larger than that of female in class I, class II and class III. Among each group maximal interincisal distance is the largest in class III. Maximal intermolar distance of male is superior to that of female in class I, class II, and class III, but there is no siginficant difference among them. 2. On maximal opening movement of Angle's classification class I and class II, total mandibular length, mandibular ramal length, madibular inferior border length and upper arch width were important variables and facial length, upper arch length and lower arch length had negative relationship to that. On maximal opening movement of Angle's class III, the upper arch length, the lower arch length and anterior facial length were important variables especially when compared with class I and II, and upper arch width had negative relationship. These results suggest that maximal opening movement is affected by facial morphology in all classes, but each group is affected by different facial skeletal variables. Accordingly, facioskeletal variables might be considered as diagnosis and treatment to improve the amount of mouth opening.
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오적산(五積散)이 흰쥐의 고지혈증에 미치는 영향(影響)에 대한 실험적(實驗的) 연구(硏究)
김재형,소경순,정찬길,김광호,Kim Jae-Hyung,Soh Kyeong-Sun,Jeong Chan-Gil,Kim Kwang-Ho 대한예방한의학회 2004 대한예방한의학회지 Vol.8 No.2
In order to study the effects of Ojuck-san on hyperlipidemia, we divided the rats into three groups(normal group, control group & sample group) and performed the experimental research. Hyperlipidemia rats were induced by oral for 14days. The sample group was administerd the extract of Ojuck-san for 14 days and control group was administerd equal dose of oral. And then we measured the amount of serum Total cholesterol, Triglyceride, LDL-cholesterol, HDL-cholesterol, Phospholipid, Cholinesterase and Cardiac risk factor. The results were as follows : 1. Ojuck-san showed decreasing effects on Total cholesterol, Triglyceride, LDL -cholesterol, and Phospholipid level in serum significantly(p<0.001). 2. Ojuck-san showed increasing effects on HDL-cholesterol level and Cholinesterase in serum significantly(p<0.05). 3. Ojuck-san showed decreasing effects on Cardiac risk factor in serum significantly.(p<0.001). According to the above results, Ojuck-san showed significant decreasing effects on hyperlipidemia, and it is considered that it is appropriate to apply for hyperlipidemia.
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The Effects of Alendronate on Healing of the Calvarial Defect in Rats
김재형,이재목,박진우,서조영,Kim, Jae-Hyung,Lee, Jae-Mok,Park, Jin-Woo,Suh, Jo-Young Korean Academy of Periodontology 2004 Journal of Periodontal & Implant Science Vol.34 No.4
The present study aimed to examine the effects of topical application of alendronate with a collagen membrane on the healing of the calvarial defect in rats, which has a good experimental design for the healing of tissue destruction, To study the effect of alendronate on bone healing, the collagen membrane containing $200{\mu}g$ alendronate was inserted in the defects of the right side and collagen membrane treated with physiologic saline was inserted in the defects of the left side. After 1, 2 and 4 weeks, observation of histologic feature after H&E staining, cell counting after TRAP staining, and hardness measurement(Knoop) were performed. In histologic finding, similar features were shown for both test and control groups each week. In cell counting only the 1 week test groups showed significant reduction of TRAP(+)cells than control groups(p<0.01) and the control groups showed statistically significant difference for 1, 2, 4weeks(p<0.05). In hardness measurement, The 2 week test groups showed significant higher hardness than control groups.(p<0,05) and not 4 weeks. There was significant increase of hardness for both groups as time goes by.(p<0.0l) Therefore local application of alendronate with collagen membrane was somewhat effective in reducing osteoclastic activity and increasing hardness in the early stage of healing. Further investigation concerning the actual effect of alendronate for bony healing will be necessary to apply the clinical cases
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김재형,유준,곽휘권,Kim, Jae-Hyung,Lyou, Joon,Kwak, Hwy-Kuen 한국군사과학기술학회 2008 한국군사과학기술학회지 Vol.11 No.3
An artificial vision aided NDGPS/INS system has been developed and tested in the dynamic environment of ground and flight vehicles to evaluate the overall system performance. The results show the significant advantages in position accuracy and situation awareness. Accuracy meets the CAT-I precision approach and landing using NDGPS/INS integration. Also we confirm the proposed system is effective enough to improve flight safety by using artificial vision. The system design, software algorithm, and flight test results are presented in details.
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김재형,최인학,김영찬,백승국,Kim, Jae Hyung,Choi, ln Hak,Kim, Young-Chan,Baek, Seung-Kuk 대한두경부종양학회 2019 대한두경부 종양학회지 Vol.35 No.1
Lipoblastoma is a rare benign tumor with 80-90% occurring in children less than 3 years of age and 40% occurring in children less than 1 year of age. The most common site of incidence is limb, and then trunk. Neck is the rare site of incidence. The main symptom that the patient complains about is a rapidly growing neck mass without pain. When the size of mass increases, it can cause dyspnea, Horner's syndrome. Lipoblastoma is usually diagnosed as a lipoma in the fine needle aspiration. Since it is not differentiated from lipoma, liposarcoma, and hibernating adenoma in CT and MRI, the definitive diagnosis is histologic diagnosis through surgical resection. The treatment is complete surgical resection. And recurrence rate is 9-25% due to incomplete resection. Authors report this case with a review of literatures since we experienced a case of lipoblastoma diagnosed histopathologically after surgical treatment of neck mass.
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Fall cone과 수화열을 이용한 흙-시멘트 혼합물의 상 변화 연구
김재형,원정윤,김성필,장병욱,Kim Jae-Hyung,Won Jeong-Yun,Kim Sung-Pil,Chang Pyoung-Wuck 한국지반공학회 2004 한국지반공학회논문집 Vol.20 No.9
Some amount of cements can be added into the soil with high water content to improve the engineering properties. In such a case, it is difficult to predict and figure out the phase changes of the soil-cement mixture which is closely associated with workability of the soil-cement mixture. Changes in heat of hydration and hardness of the cement pastes are known to provide the useful information about the phase changes of the soil-cement mixtures. In this study, heat of hydration and cone penetration depth were measured from the specimens of cement paste and 3 soil-cement mixtures. From the experimental results, it was found that the phase changes of the soil-cement mixtures are the same as those of cement paste, and that shear strength of the mixtures abruptly increases when the heat of hydration is minimum. Initial setting time of the mixtures coincides with the state when fall cone penetration depth was 1.0 mm and it is defined as plastic limit of the mixtures. Initial setting time of the mixtures is retarded as soil/cement ratio is increased. Measurements of heat of hydration and fall cone apparatus could be the useful tools to predict the phase changes of tile soil-cement mixtures.
KCI
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