결관절의 초음파 해부학 : 사체단면과의 비교연구 Correlation with Cut Surfaces of Cadavers

강홍식,송종기,김주완 대한초음파의학회 1991 ULTRASONOGRAPHY Vol.10 No.2

小兒 精神分裂病의 一例

姜弘植,金結挂 대한신경정신의학회 1968 신경정신의학 Vol.7 No.1

The definition and diaggnosis of childhood schizophrenia are more difficult and various than the schizophrenia of the adults. The authors presented a case of the childhood schizophrenia and several discussions about the diagnostic criteria and the prognosis of the childhood schizophrenia. A male child of 5 years old was admitted t.o the National Mental Hospital, because he was mute9 overtly excited, assaultive and hyperactive. During admission of about 3 months and the period of one years after discharge from the hospital, the child became mild and somewhat cooperative but the persistent mutism was not improved. At the conclusion, the authors were impressed that the improvement of the difficulties of treatment and poor prognosis of childhood schizophrenia must be gained by the enthusiastic studies of child patient.

벤젠 및 그 同族體의 中毒에 關한 硏究

姜弘植 고려대학교 의과대학 1974 고려대학교 의과대학 잡지 Vol.11 No.1

벤젠 및 그 同族體의 中毒에 關한 硏究

姜弘植,車喆煥 고려대학교 의과대학 1974 고려대 의대 잡지 Vol.11 No.1

This study was conducted to evaluate the threshold limit value of the atmospheric gas mixture in the working environment and organic solvent poisoning due to the industrial organic solvents content of benzene, toluene and the others. For this purpose, the author had investigated the hematological changes, the excreted amount of phenol and hippuric acid in the urine, the air concentration of benzene and toluene in the working environment and the duration of exposure to the above substance with the test subjects of 132 workers, 72 males and 60 females who are working in rotogravure printing industries and paint manufacturing industries. The methods which were used are as following: 1. Air concentration of benzene and toluene; By using Maffet's method after 3 hours of exposure at the site of working 2. Quantitative analysis of phenol and hippuric acid in urine; a. Excretion of phenol by Walkley's method b. Excretion of hippuric acid by Ogata's method 3. Hematologic examination; a. Hemoglobin by Cyanmethemoglobin method b. Blood cell count by Neubauer's chamber method after using Gower solution c. Hematocrit by Microhematocrit centrifuge The results obtained were as following: 1. All of the industries were over the threshold limit value of gas mixture and the range were 1.03-8.07. 2. Phenol excretion in urine was correlated to concentration of benzene in air with coefficient of 0.704 in male and 0.546 in female. The regression equations were y=3.86x+21.9 in male and y= 3.33x+28.1 in female. Hippuric acid excretion in urine was correlated to concentration of toluene in air with correlation coefcient of 0.692 in male and of 0.643 in female. The regression equations were y=l. 67x+295 in male, y=l.78x+278 in female. 3. Phenal and hippuric acid in urine were not correlated to duration of service months with correlation coefficient of 0.07 in male and 0.139 in female. 4. Hematological changes were correlated to concentration of benzene and toluene in air, such as; Hemoglobin; Male : y=-0.373x+ll. 3, r=-0.843 Female: y=-0.354x+10.1, r=-0.745 Red Blood Cells; Male : y=-7,935x+495.5, r=-0.648 Female: y=-5,351x+375.4, r=-0.549 Hematocrit; Male : y=-0.836x+42.5, r=-0.593 Female: y=-0.736x+37.2, r=-0.634 White Blood Gells; Male : y=-19.35x+4,02.57, r=-0.735 Female: y=-21.23x+3,964.7, r=-0.637 5. Hematological changes were correlated to duration of service months, such as; Hemoglobin; Male : y=-O. 233x+13.6, r=-0.678 Female: y=-0.l59x+11.58, r=-0.807 Red Blood Cells; Male : y=-3.46x+478.1, r=-0.595 Female: y=-2,912x+432.6, r=-0.534 Hematocrit; Male : y=--0.325x+42.9, r=-0.560 Female: y=-0.247x+38.3, r=-0.597 White Blood Cells; Male : y=-10,936x+4,114.5, r=-0.793 Female: y=12.13x+3,946.5, r=-0.583 6. Though benzene and toluene are singularly under the threshold limit value, in accordance with the law of mixed gas threshold limit value, an excess value of above 1.0 may induce occupational disease in the suspected cases.

전자산업 SCEM 현황과 전망

강홍식,Gang, Hong-Sik 한국전자정보통신산업진흥회 2004 電子振興 Vol.24 No.1

결핵성과 화농성 척추염의 감별:척추주위 종괴의 자기공명영상 특성

강홍식 대한영상의학회 1996 대한영상의학회지 Vol.34 No.6

Purpose : To determine the MR imaging findings for the differentiation of tuberculous spondylitis(TS) andpyogenic spondylitis(PS) with emphasis on the shape and MR signal characteristics of paraspinal mass. Materialsand Methods : We obtained spin-echo T1- and T2-weighted MR images of 63 surgically proved cases of TS and 15 casesof PS. Gadopentetate dimeglumine(Gd)-enhanced T1-weighted MR images in 37 cases of TS and in all 15 cases of PSwere also obtained. Paraspinal mass formation, the size, shape and Gd-enhancing pattern of this mass andpenetration of paraspinal ligaments by inflammatory tissue were analyzed. Results : Paraspinal mass was found inboth TS(63/63) and PS(9/15). The mean longitudinal dimension of this mass was 4.3 vertebral body heights in TS and1.8 in PS. The margin of the mass was smooth in TS due to subligamentous spread of inflammation, while PS showedan irregular margin and invaded the para-aortic or para-caval space(9/15) due to penetration of inflammatorytissue through the paraspinal ligament. In the lumbar spine, however, TS showed focal penetration of theparaspinal ligament and formed psoas abscesses. After Gd enhancement, TS showed irregular thick or uniformly thinrim enhancement(35/37), suggesting caseation necrosis and cold abscess, while PS showed diffuse enhancement,suggesting abundant granulation tissue. Conclusion : MR imaging findings helpful for the differentiation of TS andPS were size, shape and enhancing pattern of paraspinal mass and penetration of paraspinal ligament byinflammatory tissue.

자동차 전기전자제품 환경성보장제도(자원순환법률)의 추진과 전망 : 자원순환법률에 대한 대응방안: (3)각국의 환경법규 및 수출자 준비사항

강홍식 한국폐기물자원순환학회(구 한국폐기물학회) 2006 한국폐기물자원순환학회 심포지움 Vol.2006 No.3

차량 충돌 시 가드레일이 설치된 성토비탈면의 거동에 관한 연구

강홍식,안광국 한국재난정보학회 2014 한국재난정보학회 학술대회 Vol.2014 No.1

Imaging in the Evaluation of Sarcoma Management : MRI Evaluation

조소연,강홍식 가톨릭중앙의료원 가톨릭암센터 1997 암심포지움 Vol.- No.1

선행하중이 작용하는 해성점토지반에 전기삼투공법의 효과

강홍식(Hongsig Kang),안광국(Kwangkuk Ahn) 한국지반환경공학회 2015 한국지반환경공학회논문집 Vol.16 No.2

우리나라는 삼면이 바다로 둘러싸인 지리적 특성에 의해 연안 하부에 점토로 구성된 연약지반이 두껍게 형성되어 있다. 이러한 연약지반에 대규모 토목공사를 수행하기 위해선 연약지반 안정화 처리가 불가피하다. 연약지반 안정화 처리를 위해 일반적으로 선행하중공법이 널리 사용되고 있다. 선행하중공법은 공사기간이 길고 재하용 성토재료를 확보해야 한다는 단점을 가지고 있다. 공사기간을 단축시키기 위해 연직배수공법을 병용하여 사용하고 있다. 하지만 성토재료는 고비용 및 환경파괴를 발생시키기 때문에 성토체의 높이를 줄이면서 압밀시간을 단축시킬 수 있는 보완적인 방법이 필요하다. 따라서 본 연구에서는 이러한 단점을 보완하기 위해 압밀시간을 단축시키고 환경파괴를 최소화할 수 있는 전기삼투공법을 적용시킨 모형실험을 수행하였다. 그 결과 전압이 증가함에 따라 압밀침하량 및 압밀배수량, 전단강도는 증가하는 것으로 나타났으며, 함수비는 감소하는 것으로 나타났다. The Pre-loading method has been widely used for the soft ground stabilization but long construction times and the transport of large quantities of fill material are required. To shorten the construction periods, the vertical drain method is generally applied simultaneously. But the high costs of the fill materials along with environmental damages remain as the main difficulties to apply this method. Therefore, a complimentary way to reduce both the height of the embankment and the consolidation time is needed. In this study, the electro-osmosis method, which is able to shorten the consolidation time and minimize the damage of the environment, was performed with a model test. The results show that as the voltage increases the consolidation settlements, consolidation drainage and shear strength also increase while the water content decreases.