연약점토상 자갈성토지반에 대한 반복재하시 지반의 거동에 관한 연구

임종석,정상균,하혁 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

When the band load effects on the surface of soil ground, the characteristics of underground stress vary from the equipment load and the ground condition. The experimental data of the underground stress occurring on the weak stratum can be more accurate on the estimation by running the equipment and these can be applied to a counterplan for the improvement of appropriate construction equipment.

요추 협착증의 미세수술적 감압술 : 진보된 수술방법 및 초기 경험 20례 보고 Technical Innovations and Early Experience of 20 Cases

임성준,김영태,하호균 대한신경외과학회 1997 Journal of Korean neurosurgical society Vol.26 No.6

建設現場의 電氣設備安全에 관한 調査 硏究

林晩澤,鄭集汶,朴星夏,李平圭 朝鮮大學校 建設技術硏究所 1999 建設技術硏究 Vol.19 No.2

The purpose of this study is to consider a plan to improve the peoples' electrical safety consciousness by investigating the causal factors and issues of electrical safety accidents at construction fields and to offer effective preventive measures against electrical accidents. The conditions of installation, maintenance, and management of electrical equipment by shape, hydroelectric voltage, and area of construction fields in Kwangju and the Chonnam region were investigated. Thirty- two construction fields were chosen, and their conditions of safety management and installation of high- voltage and subordinate equipment were investigated. The electrical safety consciousness of 157 workers at the fields was surveyed. The main constant of the investigation was the conditions for the installation, maintenance, and management of hydroelectric equipment, the installation and management of electric wiring, the use, of mobile electrical and portable type apparatus, the possession and management of electrical safety devices, the case investigation of electric shocks, and the safety consciousness of the workers at the fields.

Improved Micropropagation of Root Chicory, Cichorium intybus L. var. sativus.

Lim,Jung-Dae,Yang,Deok-Chun,Lee,Hyeon-Yong,Kim,Jong-Dai,Lee,Jin-Ha,Sung,Eun-Soo,Yu Chang-Yeon 한국자원식물학회 2004 Plant Resources Vol.7 No.1

The establishment of an efficient protocol for plant regeneration and micropropagation from leaf explant cultures of Chicory, Cichorium intybus L. var. sativus. is reported. Callus formation rate appeared 100% from explant in all growth regulators, but calli formed in the prensence of naphthaleneacetic acid (NAA) were appeared very compact and non-embryogenic state. The regenerated shoots were obtained from leaf explant cultures on solid MS medium containing different concentrations of cytokinins and auxin. The highest number of shoots (5.7) per explant and shoot growth (2.8cm) was obtained on MS medium containing 0.1 mg BAP L^-1 and 0.1 mg NAA L^-1. Indole acetic acid was the most suitable auxin for root formation among three auxins tested. 2,4-D had no effect on shoot and root formation.

CF_4가스의 MCS-BE법에 의한 전자군파라미터 해석

하성철,임상원 동국대학교 산업기술연구원 1996 산업기술논문집 Vol.8 No.-

본 연구에 의해 산출된 전자군파라미터는 시뮬레이션에 의하여 약전리 플라즈마의 많은 정보 뿐만아니라 특히 원자들과 분자들에 의한 저 에너지 전자산란이론의 중요한 데이타로서 공헌이 기대되어진다. 본 논문에서는 CF_4가스의 전자수송특성을 볼쯔만방정식과 몬테칼로 시뮬레이션에 의해 E/N : 1~ 300(Td)범위에서 해석하였다. 전자의 운동은 전자이동속도, 확산계수, 특성에너지, 평균에너지 등의 전자군 파라미터와 전자에너지 분포함수에 의해 계산되었다. CF_4가스에서 전자에너지 분포함수는 E/N=50, 100, 200(Td)에서 평균전자에너지의 평형영역에서 해석하였다. 볼쯔만방정식과 몬테칼로 시뮬레이션의 결과는 Y.Nakamura와 M. Hayashi의 실험 데이타와 비교 검토하였다. The swarm parameter from the swarm study are expected to serve as a critical test of current theories of low energy electron scattering by atoms and molecules, in particular, as well as crucial information for quantitative simulations of weakly ionized plasmas. In this paper, the electron transport characteristics in CF_4 has been analysed over the E/N range 1~300(Td) by a two-term approximation Boltzmann equation method and by a Monte Carlo simulation. The motion has been calculated to give swarm parameters for the electron drift velocity(W), diffusion coefficient(D_L), the ratio of the diffusion coefficient to the mobility(D_L/μ), mean energy(ε￣), the electron energy distribution function. The electron energy distribution function has been analysed in CF_4 at E/N=50, 100 and 200(Td) for a case of the equilibrium region in the mean electron energy. The results of Boltzmann equation and Monte Carlo simulation have been compared with experimental data by Y. Nakamura and M. Hayashi.

色彩環境의 理論的 背景에 관한 硏究

林晩澤,朴星夏 朝鮮大學校 建設技術硏究所 1998 建設技術硏究 Vol.18 No.1

The design ranges of human-environmental system can be divided into seven kinds-water, thermal, air, light, color, psychology and sound environment. This study aims at clarifying the theoretical background of color environment from the historical point of view. Color study has begun to develope ancient times. Color environment needs to the study of color theory, color system, harmony of colors, color conditioning, color psycology, color culture and coloring of a architecture.

유럽통합의 심화와 대외관계의 변화

임문영,이종광,김승민,류두하 계명대학교 국제학연구소 1996 국제학논총 Vol.1 No.-

建設現場의 電氣安全意識에 관한 硏究

林晩澤,鄭集汶,朴星夏 朝鮮大學校 建設技術硏究所 1999 建設技術硏究 Vol.19 No.3

This study is based on the examination of 157 employees at various types of construction sites in Kwangju and Chunnam. The purpose of this study is to examine their awareness of electrical installation at construction sites, as well as their consciousness of accidents and the occurrence types of electric-injury accidents. It emphasizes the importance of electric safety education, which is expected at construction sites, and reveals basic data for precautions against electric-injury accidents and efficient safety supervision. In respect of the degree of awareness of accidents, 93.6% of the employees in this survey showed a very high sense of the danger of such accidents. With respect to type of accident, 38.8% replied that accidental falls are the most dangerous, while 44.6% replied that they have experienced electric-injury. In regard to the types of the electric-injury accidents, 38.0% replied that leakage of electricity is the main source of such accidents. It is therefore necessary to strengthen educational programs and precautional plans for electric-injury accidents. It is furthermore required to intensify the periodical execution of safety education, increase the publishing of guidebooks for safety education, and provide for thorough establishment and management of electrical equipment.

진행성 골화성 섬유 이형성증의 1예

임태영,조영신,정춘해,박유환,하상호,유재원 조선대학교 부설 의학연구소 2002 The Medical Journal of Chosun University Vol.27 No.1

진행성 골화성 섬유 이형성증은 2 백만명 중에 1명 발생하는 매우 드문 유전질환이다. 저자들은 2차례의 외상후 심해진 진행성 섬유 이형성증환자에서 최근 다시 발생된 외상후 생긴 병변부위에 biphosphonate와 steroid 투여로 최근수상부위의 근육 골화와 경화를 현저한 호전을 보였으나, 기존의 골화가 이미 진행된 병변에서는 잘 반응하지 않음을 경험하였기에 문헌고찰과 함께 보고하는 바이다. Fibrodysplasia ossificans progressiva(FOP) is an extremely rare hereditary disorder characterised by progressive heterotopic ossification of the soft tissue. The resulting progressive immobilization of the limbs, jaw and chest wall generally leads to severe disability. We present an 20-rear-old man with advanced FOP. He had two operative interventions by prior traffic accident and recent biopsy. It resulted abnormal ossification. Treatment for this disorder is avoidance of exacerbating factors and medical strategies is biphosphonate and steroid. We observed the course of ossification and muscle atrophy during biphosphonate and steroid therapy in advanced FOP.

말초혈액에서 Tg mRNA에 대한 역전사 중합효소 연쇄 반응법의 갑상선 재발암의 분자생물학적 진단

권성일,박기룡,김현영,신채희,임영찬,최영식,박요한,이강대,장희경,이재화,염하용 대한내분비학회 2002 Endocrinology and metabolism Vol.17 No.4

연구배경: 갑상선암은 다른 조직에 발생한 암에 비해 비교적 천천히 자라므로 대부분 예후가 양호하지만, 일부에서는 주위 조직으로 침윤하거나 혹은 원격 전이로 인하여 치명적인 결과를 초래할 수 있다. 갑상선전절제술 및 131^I 제거술 후 경과 관찰시 갑상선암의 재발과 전이의 진단에 있어 131^I 스캔과 혈청 Tg의 측정이 현재 임상에서 가장 많이 이용되고 있으나 이 방법에는 여러 가지의 결점이 있다. 최근 Tg mRNA에 대한 RT-PCR법을 이용한 여러 연구결과는 131^I 스캔과 혈청 Tg 측정의 결점을 보완할 수 있는 좋은 보조적인 진단법으로 이용할 수 있을 가능성을 제시하였다. 이에 말초혈액에서 측정한 Tg mRNA에 대한 RT-PCR법이 갑상선 절제술 및 방사성요드 치료 후 갑상선암의 재발 및 전이 유무의 진단에 유용한가를 알아보고자 이 연구 시행하였다. 방법: 분화된 갑상선암으로 진단된 후 갑상선전절제술을 시행받고 방사성요드 치료를 받은 환자 중 현재까지 한차례에 이상 추적 방사성요드 전신 스캔을 시행하고 추적관찰이 가능했던 유두선암 35예, 여포선암 5예를 대상으로 연구를 시행하였다. 대상군은 131^I 스캔 소견상 음성인 군(Group Ⅰ), 잔여조직이 있는 군(Group Ⅱ), 국소전이가 있는 군(Group Ⅲ), 및 원격전이 군(Group Ⅳ)으로 구분하였다. 정상 대조군은 갑상선질환이 없는 10예의 건강인으로 하였다. 대상환자의 말초혈액을 이용한 Tg mRNA에 대해 특이적인 primer를 이용하여 RT-PCR 및 nested RT-PCR을 시행하였다. 결과: 본 연구 결과는 다음과 같다. 1) 131^I 스캔 소견상 음성인 군 21예 중 1예에서 Tg가 양성소견을 보였다. Anti Tg Ab가 양성인 4예 모두 Tg가 음성을 보였다. 잔여조직이 있거나 국소전이 및 원격전이를 보인 군 19예 중 Tg가 양성인 경우는 4예였으나, Tg mRNA는 전예에서 양성이었다. 2) 131^I 스캔에서 국소 및 원격전이 소견을 보인 8예 중 4예에서 Tg가 음성으로 131^I 스캔과 혈청 Tg 사이에 불일치 소견을 보였다. 3) 말초혈액에서 특이적인 primer를 이용하여 RT-PCR 및 nested RT-PCR을 시행한 결과 대상군 40예 및 정상 대조군 10예 모두에서 Tg mRNA가 양성을 보였다. 결론: 본 연구에서 갑상선 절제술 및 방사성요드 치료 후 갑상선암의 재발 및 전이 유무를 평가함에 있어 역전사 중합효소 연쇄 반응법을 이용한 Tg mRNA 측정의 의의는 재평가되어야 한다고 생각된다. Background: Differentiated thyroid cancer is the most common endocrine malignancy. Despite advances in the treatment of thyroid cancer, disease recurrence and metastasis may occur in as many as 20% of patients, and so continues to pose major problems in its clinical management. Serum thyroglobulin (Tg) measurements, by immunoassay, are used to detect residual or recurrent thyroid cancer following thyriod ablation. However, the usefulness of immunoassay is limited by both the requirement for thyroid hormone withdrawal, to attain optimal test sensitivity, and interference by the antithyroglobulin antibody (Anti-Tg Ab). Recent studies have reported the clinical usefulness of reverse transcription-polymerase chain reaction (RT-PCR) detection of Tg mRNA in the peripheral blood of patients with differentiated thyroid carcinomas. We performed this study to evaluated the usefulness RT-PCR of Tg mRNA in peripheral blood of patients with thyroid carcinoma following a total thyroidectomy and radioiodine ablation therapy. Methods: Forty cases that underwent a total thyroidectomy and radioiodine ablation therapy were included in this study. Of the 40 patients, 35 were papillary carcinomas and 5 were follicular carcinomas. Ten normal control subjects were also studied. Tg mRNA was extracted. Then RT-PCR and nested RT-PCR, were run with specific Tg primers. Concurrently, DNA sequencing of the isolates was carried out to prove the isolates were identical to the nucleotide sequence of the Tg. Results: The Tg was detected in 4 of 19 patients, with either a residual thyroid bed, or metastasis, on a 131^I whole body scan and in 1 of 21 patients with a negative radioiodine scan. Surprisingly, the Tg mRNA was detected in all the patients and normal controls. Conclusion: From our results we can not recommend Tg mRNA, detected by RT-PCR in peripheral blood, as a tumor marker superior to that of the Tg serum level. We consider an intensive re-evaluation of the method is required before considering its clinical applications (J Kor Soc Endocrinol 17:501∼513, 2002).