• Maxillofacial Plastic and Reconstructive Surgery
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• v.22 no.1
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• pp.51-55
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• 2000

Purpose : The purpose of this study is to setup a standard treatment protocol in surgical correction of skeletal malocclusion with Angle Class III patients. We asessed the soft tissue changes according to skeletal changes of patients who have undergone orthognathic surgery with bilateral split sagittal ramus osteotomy (BSSRO) and advancing genioplasty. Materials & Methods : The soft tissue change of 9 skeletal Class III patients was assessed after BSSRO and advancing genioplasty. The patient group was skeletal Class III who was surgically treated by BSSRO & advancing genioplasty. The average follow up period is 13 months with the range of 6 and 30 months. All patients have undergone preoperative and postoperative orthodontic treatment. The assessment was devided into two groups. One was antero-posterior relationship and the other was vertical relationship of dimensional changes of soft tissue after orthognathic surgery. Results : In antero-posterior dimensional changes after surgery, the percentage of soft tissue change in comparison to hard tissue was 89%. Vertical ratio after surgery, 86% soft tissue changes were assessed.

• Korean Architects
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• no.7 s.351
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• pp.73-79
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• 1998

대한건축사협회와 건설교통부, 서울경제신문사가 공동개최하는 '98한국건축문화대상의 작품공모요강이 지난달 3일 발표되었다. 우리 건축의 본질과 이 시대의 정서 그리고 기능성이 구현된 역작을 발굴하여 시상함으로써 한국건축의 미래를 열어가고자 마련된 올해의 한국건축문화대상은 예년과 마찬가지로 기성건축인 대상의 준공건축물부문과 신인(설계업무 종사자, 대학원생 등)ㆍ학생 ㆍ일반 대상의 계획건축물부문 두 부문에 걸쳐 출품작을 공모해 오는 10월말 부문별 심사결과 발표와 함께 시상식 및 전시회를 갖는다. 특히 관심을 모으고 있는 계획건축물부문은 '도시의 흔적'이 주제로 제시된 가운데 오는 9월 21일 작품(패널 및 모형 각 1점)을 접수, 심사를 거쳐 금상 1점(상금 500만원 및 상장), 은상 2점(각 상금 250만원 및 상장), 동상 5점(각 상금 100만원 및 상장), 입선작(각 상금 30만원 및 상장)을 가리게 된다. 본지는 올해 공모전에 참여할 응모자들의 공모주제에 대한 이해를 돕기 위해 심사위원들을 초청해 지난 6월 17일 주제토론회를 개최하였다. 따라서 이번 토론은 응모자들이 주제의 보다 가깝게 접근할 수 있도록 하는데 많은 도움을 줄 것으로 기대되며 특히 토론내용 중 주제의 발제배경과 범위, 각 심사위원들의 조언 등을 종합해 참고한다면 좋은 결과를 얻을 수 있을 것으로 본다. 아울러 본지는 신인등용의 장으로서 한국건축의 정통성과 맥을 이어나갈 이번 공모전에 독자 여러분의 많은 성원과 참여를 기대한다.

• Journal of Yeungnam Medical Science
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• v.7 no.2
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• pp.167-172
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• 1990

Astrocytoma in the thalamus is not so frequent in incidence (1%). Moreover, bilateral thalamic tumor is rare. Certain tumors of the thalamus are considered resectable but most of thalamic tumors are thought to be untouchable. Bilateral thalamic astrocytoma with hydrocephalus was diagnosed by stereotactic biopsy and ventriculo-peritoneal shunt operation was done with result of improvement. We report a case of astrocytoma in the bilateral thalamus with literature review.

• YAKHAK HOEJI
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• v.35 no.5
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• pp.394-400
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• 1991

A question whether abnormal responsiveness of hypothalamic catecholaminergic nervous system to ovarian steoid hormones in spontaneously hypertensive rats (SHR) exist was investigated. Four groups of experimental animals were prepared for SHR and normotensive Wistar rats (NW) respectively: 1) intact, 2) ovariectomized (OVX+V), 3) ovariectomized and estrogen treated (OVX+E), 4) ovariectomized and estrogen plus progesterone treated (OVX+E+P) groups. Hypothalami from experimental animals were dissected out and used for determination of .alpha.-adrenergic receptor binding characteristics and catecholamine contents. Norepinephrine(NE) content and B$_{max}$ of $\alpha_1$-adrenergic receptors in hypothalami were greater in intact SHR than in intact NW, but dopamine(DA) content was lower in SHR than in NW. Neither contents of NE and DA nor binding characteristics of $\alpha_1$-adrenergic receptors were different in OVX+V and OVX+E group from intact group of both SHR and NW. Kd and B$_{max}$ of $\alpha_1$-adrenergic receptors in OVX+E+P was lower than that in intact SHR but not in NW. DA content was lower in OVX+E+P than in intact group of SHR and NW. The result of the present study indicates that there is an abnormal responsiveness of hypothalamic catecholaminergic nervous system to ovarian steroid hormones in SHR which may be one of genetically-determined factors probably not responsible for the development of hypertension.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.13 no.1
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• pp.95-99
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• 1991

Several authors have proposed techniques and devices by which the correct position of the proximal segment can be maintained both during fixation and postoperatively. Schendel, Epker, Lake, Worms, Ive and Poulton have been discussed the problem of condylar distration in mandibular orthognathic surgery. This study described have showed the some advantages forward repositioning of the condyle head in vertical ramus osteotomy which used with the Mini-Hoffmann sets in external skeletal pin fixation extraorally in 19 cases.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.16 no.2
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• pp.145-151
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• 1994

앞 턱 부위가 짧고 후방으로 위치해 있을 때 턱의 높이를 증가시키고 전방으로 돌출시키는 축조 이부성형술의 방법으로는, 매식체 삽입술, 골 절단술, 골 절제술 또는 이들을 동시에 시행하는 혼합술등이 행해져 왔다. 그러나 매식체 삽입술에서는 감염 또는 매식체의 유동성 등의 합병증의 발병이 빈발하고 매식체의 밑 부위에 골이 흡수된다든지 연조직의 변화를 예측하기 어렵다든지 하는 복잡한 문제점들이 종종 보고되고 있다. 따라서 매식체를 이용하지 않는 골 절단술이나 골 절제술만을 이용한 다양한 방법의 이부성형술이 많이 시행되고 있다. 하악골이 전후방 관계로 발육부전인 환자에게 양측 하악지 시상분할술을 시행하여 전방 이동시킨 후 앞 턱의 위치를 좀더 개선하기 위하여 $Michel{\'{e}}t$ 테크닉의 변형법을 이용한 이부성형술을 추가로 시행하였다. 이 방법의 이부성형술은 턱의 수직적, 수평적 길이를 증가시키기 위하여 하악결합면 부위에 장부와 장붓구멍 모양을 한 골 절단술을 시행하고 광범위한 연조직경을 보존하여 골편으로의 혈류 차단을 최소화하였으며 나사를 이용한 견고한 고정을 용이하게 하였다. 이 술식은 턱을 수직적으로 증가시킬 때 두 골편 사이의 공간에 골 이식을 시행할 필요가 없으며, 금속판을 이용하지 않아도 정확한 위치에 골편을 고정하기가 용이하고, 또한 고정용 나사가 향후 골형성 부위에 위치하게 된다는 장점을 경험하게 되어 이에 한 증례를 보고하는 바이다.

• Journal of Korean Association for Spatial Structures
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• v.18 no.1
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• pp.127-134
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• 2018

This study suggests the tangent modulus $E_t$ associated with partially yielded section of steel member under axially compressed. The provisions for column strength does not provide a information about failure mode of structural system. So, designers can not evaluate that a failure comes from member buckling or material yielding. The material of the axially compressed column under inelastic behavior reaches yielding point before the axial force renders the column bent. If axial members yields not by buckling effect but gradually yielding effect of material, the design code should accept related tangent modulus Et which is based on gradual yielding effect of material. This study provides the new effective tangent modulus $E_t$ derived in the case that residual stress is 30 percent and 50 percent of yielding stress respectively. The study considers idealized I section of steel which ignores web and general I section of steel with web respectively and makes conclude that tangent modulus $E_t$ with idealized I section of steel is rational.

• Nuclear Engineering and Technology
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• v.25 no.3
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• pp.403-412
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• 1993

By making use of the microprocessor technology, instrumentation system becomes intelligent. In this study a programmable smart transmitter is designed and applied to the nuclear engineering measurements. In order to apply the smart transmitter technology to nuclear engineering measurements, the digital time delay compensation function and water level change detection function are developed and applied in this work. The time compensation function compensates effectively the time delay of the measured signal, but it is found that the characteristics of the compensation function should be considered through its application. It is also found that the water level change detection function reduces the detection time to about 7 seconds by the signal processing which has the time constant of over 250 seconds and which has the heavy noise.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.13 no.2
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• pp.129-139
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• 2009

Sagittal spinal balance means standing postural balance at sagittal plane. Postural imbalance with displacement of the patient's center of gravity can cause chronic back pain and ambulatory difficulty. The sagittal spinal balance is determined based on the deviation of the C7 plumb line, originating at the middle of the C7 vertebral body, from the posterior superior endplate of S1. The line is called as sagittal vertical axis (SVA). In the traditional Korean medicine, the meridian sinews, which are the most superficial pathways of the meridian system, associated with movement, muscle balance and defense. They too are separate from the main meridians, though they intersect the main meridians. Some creative and pioneer researchers in Korea thought that the anatomy trains, which suggested by Myers is a concept familiar to the meridian sinews. A reciprocal relationship between the superficial back line and the superficial front line used to be compared to the rigging of a sailboat. Therefore, We suggest that spine may be compared to a mast of the sailboat and that the sagittal spinal balance can be maintained with systemic reciprocal interacts between the front line muscles and the back.

• Journal of Sensor Science and Technology
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• v.5 no.6
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• pp.60-67
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• 1996

The interfacial electrical properties of InSb MIS structure with low temperature remote PECVD $SiO_{2}$ have been characterized. The interlace-state density at mid-bandgap of the MIS structure was about $1{\sim}2{\times}10^{11}\;cm^{-2}eV^{-1}$, when the $SiO_{2}$ film was deposited at $105^{\circ}C$. However, large amount of interlace states and trap states were observed in the MIS structure fabricated at temperatures above $105^{\circ}C$. The time constant of $10^{-4}{\sim}10^{-5}\;sec$ of interface states was extracted from G- V measurement. As the deposition temperature increased, the hysteresis of C- V curves were increased due to the high trap density.