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무인크레인에 의한 Trailer 코일 상차 기술 개발 및 적용
조해동 제어로봇시스템학회 2008 제어로봇시스템학회 국내학술대회 논문집 Vol.2008 No.10
POSCO has developed new technology that can load coil on trailers through a fully automatic operation by using an unmanned crane. This technique is the main function of the unmanned crane system. If the technique had not been developed, the unmanned crane could only be applied in restricted areas. This new technique of unloading the coil on a trailer has been developed and is being used in the unmanned crane yard area. This automatic system of unloading coils on a trailer has been used successfully in the unmanned crane area. The old system of using only the semi automatic operation by remote control of the crane was not as efficient. The greatest advantage of this new technique is turning the experience of the trailer driver into a mathematical formula and using a scanning system to guide the coil to the correct loading point on the trailer. This new technique has been used at 23 trailer points of POSCO’S Pohang Steel works and it will be developed and manufactured in the near future. This new technology will enable the loading and unloading operation to be performed by con control system.
소뇌반구 발생한 결핵농양 1예 : Case Report
김덕용,조해동,유영락,김남규,정환영 대한신경외과학회 1980 Journal of Korean neurosurgical society Vol.9 No.2
The authors describe a case of tuberculous cerebellar abscess in 21-year-old male patient with previous .history of miliary tuberculosis and tuberculous meningitis. Verified bacteriologically and histologically was this tuberculous cerebellar abscess. In reference to the literature, tuberculous brain abscess are extremely rare among the tuberculomas of the brain.
이경석,조해동,유영락,김남규,정환영 대한신경외과학회 1982 Journal of Korean neurosurgical society Vol.11 No.3
A series of 41 patients in a vegetative state after severe head injury is presented. The patients selected were those who were in comatose state at least 2 weeks and observed more than 6 months. The vegetative state was more common before the age of 40(75.6%). The most common types of lesion causing vegetative state were subdural hematoma and epidural hematoma(56.1%). Twentyeight patients(68.1%) had a Glasgow coma score of 3 to 5. The two most frequent complications were urinary tract infections(80.5%) and bed sores(65.9%), but the most common cause of death was respiratory complication(60.0%). CT scans taken in the vegetive state showed variable evidences of cerebral atrophy, which were considered to be the results of the injury and had little value in predicting the outcome. At 6 months, the outcome was as follows : good recovery 4(9.8%) ; moderate disability 7(17.1%) ; severe disability 12(29.3%) ; vegetative state 10(24.4%) ; and dead 8(19.5%). Twenty-three patients(56.1%) came out of the vegetative state during a 6 month follow-up period. Vegetative state is not always permanent. Therefore, it seems necessary to distinguish persistent vegetative state from vegetative state. The term, "persistent", means that the patient, if ever, came out of the vegetative state and in the event he did he usually remained in severe disability. 15 out of the 23 improved within 2 months, 14 out of the 15 improved to at least moderate disability. 8 out of the 23 improved after 2 months but all remained in severe disability. From these results we propose that the term "persistent" be applied to patients who remain in a vegetative state for more than 2 months.
하영일,조해동,유영락,김남규,정환영 대한신경외과학회 1981 Journal of Korean neurosurgical society Vol.10 No.2
The purpose of this study on the surgical results for lumbar intervertebral disc herniation is to analyze the unique feature of the series which seems to be sufficient to represent Korean patients suffering from these diseases. A total of 812 lumbar discectomies had been performed from May, 1972 to December, 1978 at Hanyang University Hospital. The most outstanding unique feature was the level of the lesion. The L₄-L_(5), interspace was affected in 87.6%. while the most of the other series showed almost same incidence between L₄-L_(5), and L_(5)-S₁, interspaces. The results of this analysis are as follows: 1) The incidence ratio of male to female was 1.3: 1. 2) Most were in the 4th and 5th decade (53.5%). The duration was over one year in 64.6% of cases. 3) Traumatic origin was 37.8% of cases. Post-delivery, convulsive and unknown etiology were 2.2%, 0.7% and 59.3% of cases, respectively. 4) The level of the lesion was predilected at L₄-L_(5) interspace with the incidence of 87.6%, while L_(5)-S₁, interspace was affected in 25.4% of cases. Single lesions were 70.8% and the multiple 29.2% of cases. 5) False positive findings of myelogram were 1.2% of cases. 6) Surgical results were gratifying in 92.3% of cases. 7) The incidence of postoperative complications was 3.3% of cases, which were mainly stitch abscesses. 8) The 7 out of 812 cases were associated with spinal tumors.
외상에 의한 척추 지주막하-흉막강루 2례 : Case Report
유근오,조해동,유영락,김남규,정환영 대한신경외과학회 1982 Journal of Korean neurosurgical society Vol.11 No.2
The occurrence of fistulous tract between the thoracic subarachnoid space and the pleural cavity due to injury is uncommon. The one was developed after traffic accident and treated by surgical repair of the fistula. The other was post-operative complication of costotransversectomy for T2 sympathectomy. The complication was realized by the surgeon who was aware of the small leakage of cerebrospinal fluid from the dura propria of the T2 nerve root at the time of surgery. Intermittent pleural punctures for drainage and semisitting position were followed by spontaneous closure of the fistula. These cases were reported so that the uncommon condition might be added to the differential diagnosis of pleural effusion.
이경석,조해동,유영락,김남규,정환영 대한신경외과학회 1981 Journal of Korean neurosurgical society Vol.10 No.2
A series of 40 patients with intraventricular hemorrhage (IVH) diagnosed by computed tomography is presented. The outcome of these patients was analyzed with ages, causes, clinical features and CT findings. Various factors which may affect the prognosis of IVH were considered. Overall mortality rate was 64.7% ; 22 of the 34 patients were dead, 7 were recovered without residual disability (20.6%) and 5 were handicapped (14.7%). Of the 22 patients who died only 5 were dead within 48 hours (22.7%). Majority of the dead were died within 2 weeks (77.3%). The results suggested that IVH by itself is not directly concerned with the death. In predicting the prognosis, the level of consciousness on admission, causes of IVH, degree of ventricular extension and distortion, and presense or absence of midline shift seem to play a role. Age, site of hemorrhage and amount of intrcerebral hematoma also affect the prognosis but had no statistical significance.