부신피질 자극호르몬 단독결핍 1례

박경식,이승현,최석영,박태규,이동화,이찬우,정성복,이인규 啓明大學校 醫科大學 1997 계명의대학술지 Vol.16 No.3

부신피질 자극호르몬 단독결핍은 국내에서 7례만이 보고된 희귀 질환이며 병인 및 경과 등 아직 불분명한 측면이 많다. 이는 질환지체의 희귀성도 있지만 치료후 자연경과에 대한 장기적인 추적검사가 이루어진 경우가 드물기 때문이기도 하다. 저자들은 비특이적인 전신증상을 주소로 내원한 폐경기후의 56세 여자 환자에서 자가면역질환의 증거없이 고프로릭틴혈증을 보인 부신피질 자극호르몬 단독결핍 1례를 경험하고 1년간의 부신피질호르몬 대치요법후 추적검사를 실시하였기에 문헌 고찰과 함께 보고하는 바이다. Isolated ACTH deficiency is a rare disorder which shows secondary adrenal insufficiency with normal states of other pituitary hormones. A 56-year-old postmenopausal woman complaining general weakness and intermittent mental confusion presented negligible serum cortisol and ACTH level with hyperprolactinemia and mild hyponatremia. Rapid ACTH stimulation test did not show significant increase of serum cortisol level. Combined pituitary stimulation test showed negligible response of cortisol and ACTH, and slightly decreased response of prolactin and gonadotropin. But the responses of TSH and GH were normal. There was no evidence of organic pituitary of hypothalamic lesion in brain MRI and antithyroid autoantibody was not detected in serum. After receiving 12 months of glucocorticoid replacement therapy, she skipped the medicine for 3 weeks and we performed follow-up endocrinologic tests. Serum ACTH and cortisol level was also negligible and prolonged ACTH simulation test showed normal response of serum cortisol. CRF stimulation test showed no response of serum ACTH. Basal prolactin level was decreased to near normal and combined pituitary stimulation test showed normal response of prolactin with slightly blunted response of TSH and GH. We concluded that the case was nonautoimmune origined isolated ACTH deficiency which was accompanied by hyperprolactinemia and resultant deficiency of gonadotropin, so we report this case with review of literatures.

리모델링을 고려한 가변형 아파트 주호공간 계획기법에 관한 연구

이찬희,오세규 대한건축학회 2004 대한건축학회논문집 Vol.20 No.9

With the life style changing and the income level Improving In our Society, the composition of apartment residents and the preference are diversifying For that reason, various residential plans are desired However in bearing wall system the existing apartments have a clear attribute of a fixed system, consequently, they have a difficulty In being adapted to the social requirement. In this research, I would like to put a variable apartment to practical use In Which With a suitable structure system applied to a variable apartment considered as remodeling system various residential requirements are accepted and the change of the family life cycle and moreover, effective and systematic remodeling are accomplished This study derives plane models thinking about the concept of the open housing, reviewing the aspect of structural adequacy, and applying the plan technique to the Unit residing of 80m' and 105m' which are suitable for Korean Circumstance Actually there are many matters not examined However, this study could be a alternative plan, from the aspect of reflecting Social requirements for housing environment and the sustainable housing considered as a remodeling system

고주파 Sputter-microsectioning기술을 이용한 α- Fe 및 Fe-12at % Co 합금중의 Co의 작은 확산 계수의 측정에 관한 연구

李贊揆 國立 昌原大學校 産業技術硏究所 1989 産技硏論文集 Vol.3 No.-

The diffusion of Cobalt in α-iron and Fe-12at% Co alloy has been studied by a serial radio-frequency sputter-microsectioning technique with radioactive tracer 57Co in the temperature range 873 to 1194 K. It has been founded that the diffusion coefficient of cobalt in Fe-12at% Cobalt alloy is lower than that in α-iron, and in the paramagnetic state of the alloy between 1160 and 1202K the Arrhenius plot is not linear. This suggests that the magnetic moment around a cobalt atom in the alloy has a positive value even at the α-Υ transition temperature, thus the diffusion of Cobalt in Fe-12at% Co alloy is influenced by larger magnetic moment than that in α-iron.

공업고등학교 전기학과의 전기수학교육에 관한 연구

이상석,신용철,김민회,박찬규,이재용 영남이공대학 2004 論文集 Vol.33 No.-

This research is that concern in electrical mathematics education of Technical high school Department of Electricity in the 7th educational curriculum. In the 7th educational curriculum, indicated problem about mathematics education of Technical high school Department of Electricity and examine major subject, contents of mathematics that use in major subject and analyzed contents of mathematics that must supplement. With this analysis, established necessary electrical mathematics contents for major subject studying of Technical high school Department of Electricity.

마찰력과 열처리에 따른 아크용사 및 아크용접된 Fe-Cr-B 합금 피복층의 변화

이찬규,유인석,김강형,구본흔,박맹로 國立 昌原大學校 産業技術硏究所 1995 産技硏論文集 Vol.9 No.-

Variations of arc thermal sprayed and arc welded Fe-Cr-B alloy coating with frictional loading and heat treatment were investigated by means of X-ray diffraction, optical microscopy, scanning electron microscopy, electron probe microanalysis and hardness test. The as-coated layers were shown to be crystalline state but peaks with the frictional loading largely disappeared in X-ray diffraction profiles. The splat is relatively wavy with the boundary in arc thermal spray coating. After heat treatment, the amount of porosity was found to be decreased and the intersplat distance was increased. As annealing temperature increased, interface layer for arc welding coating increased by the diffusion of Cr atoms. The wear type observed in arc thermal spray coatings is splat delamination. The hardness of the arc thermal spray coation layer was superior to that of the arc welding layer. Hardness of coated layer is reduced and microstructures become to be uniformed by the heat treatment.

공업고등학교 전기과과 전문대학 전기과의 교과목 연계를 위한 교과내용 개선연구

이상석,김민회,박찬규,이재용 영남이공대학 2003 論文集 Vol.32 No.-

Most of our college students in the department of electricity are from technical high school. Thinking that a lot of those high school students are going to try out for our college, we have come up to the idea to have stable student resources and to keep the resources that we should have researched on this matter. As first solution, considering scholastic ability for students, our college should help them to have easier understandings on their major subject studies. To let them have better condition of studying, we have analyzed 6th and 7th high school curriculum for electric text and studied how much influence 7th the curriculums have on major subject studies. Also we have looked through high school mathematics and basic electric texts under 7th the curriculums. After examining these analysis, we have had some suggestions about the ways to provide easier understandings and reorganized contents in a major basic text of college.

쌍자엽식물의 자엽에 있어서 α-Amylase활성에 관한 식물생장물질의 연구 : Ⅰ. 녹두 자엽에서 α-Amylase 활성에 대한 식물 생장 조절체의 효과 Ⅰ. Effects of Plant Growth Regulator on α-Amylase Acticity in the Cotyledons of Mung Bean(Phaseolus radiatus L.)

李相淑,曺圭燦,權五溶 충남대학교 자연과학연구소 1992 忠南科學硏究誌 Vol.19 No.1

The effects of plant growth regulators on α-amylase activities in the embryonic axis-attached and detached cotyledons of mung bean (Phaseolus radiatus L.) have been investigated. α-Amylase activities in the attached cotyledons of developing mung bean have been markedly increased for 3 days after the imbibition and then gradually decreased. The changes of α-amylase activity have accorded with changes on the band density of α-amylase isozymes in the attached and detached cotyledons. Two bands of isozyme have appeared on day 3 in the attached cotyledons, but on day 4 in the detached cotyledons. When the 10^-6 M solutions of GA_3 and kinetin have been exogenously supplied in the detached cotyledons for 3 days, α-amylase activities have occurred with about 1.5-fold in GA_3 and 1.25-fold in kinetin rather than the control. α-Amylase activities have been increased with 1.8-fold in the detached cotyledons treated with the 10^-3 M and 10^-4 M solutions of IAA. In contrast with the treatment of IAA, α-amylase activities have been increased with 3.5-fold in the detached cotyledons treated with the 10^-5 M and 10^-6 M solutions of 2, 4-dichlorophenoxyacetic acid belonged to synthetic auxin. Consequently, it has been indicated that the embryonic axis in the cotyledons of mung bean has been directly influence on α-amylase activity, and the α-amylase activity of the detached cotyledons treated with a 10^-6 M solution of 2, 4-dichlorophenoxyacetic acid has developed much increased effect. For this reason, it has been suggested that auxin from the embryonic axis has been probably induced α-amylase in the attached cotyledons during germination of mung bean.

IC 본딩와이야용 Cu-Au 합금의 가공도에 따르는 규칙변태와 재결정 거동에 관한 연구

이찬규 國立 昌原大學校 産業技術硏究所 1992 産技硏論文集 Vol.6 No.-

Electrical resistance and hardness measurements were made to investigate the effect of cold work on recrystallization and order-disorder transformation during isochronal and isothermal annealing. the ordering process, involving the recovery and recrystallization, is accelarated by cold work. Also, it has been shown that the activation energy for ordering process of this alloy is about 0.6eV and ordering temperature is about increased 30K.

이온교환법에 의한 탈질소 공정개발의 기초연구 (Ⅴ) : 질산성 질소 선택적인 이온교환수지의 합성 Synthesis of Nitrate-Selective lon Exchange Resines

이동환,김승일,전진희,박찬영,이민규 한국환경과학회 2000 한국환경과학회지 Vol.9 No.4

Nitrate-selective ion exchange resin which have bulky tertiary amine as functional group have been synthesized by the reaction of chloromethylated polystyrene-divinylbenzene copolymer and the corresponding tertiary amine [NR_3=NEt_3 1, N(C_2H_4OH)_3 2] in ethanol, while commercial resin has NMe_3 as functional group. The fundamental properties such as bulk density, water content, appearance index, exchange capacity, effective size, uniformity coefficient of synthesized anion exchange resin (1) have been measured. The ion exchange resin (1) and (2) exhibited the better selectivity for nitrate than sulfate in both batch and continuous column experiments.

STS 304 스테인리스강의 플라즈마 페이스트 침붕처리에 관한 연구

李聖道,李贊揆,孫明淑,尹在弘,許聖康 國立 昌原大學校 産業技術硏究所 1997 産技硏論文集 Vol.11 No.-

Various surface properties of boride layer formed by plasma paste boronizing were examined. A boride layer of flat structure was formed on the STS 304 stainless steel substrate by plasma paste boronizing treatment with several different temperature from 1023K to 1223K under gas mixture of Ar/H₂: 2/1(vol.%). The paste was composed of 30wt% boron and 70wt% borax. The properties of boride layer were evaluated by micro vickers hardness tester, SEM, EPMA, and corrosion tester. Metallographic cross section of the borided specimen was consisted of the boride layer, Ni rich layer, Cr rich layer, and matrix structure. It was found to form boride layer in a short time to conventional boronizing methode. In XRD analysis of boride surface, various peaks such as FeB, Ni₃B and CrB were presented. Especially, the peak of CrB was more intensive than other peaks. Activation energy for the formation of boride layer was found to be 123kJ/mol which is lower than the conventional boronizing treatment. The microhardness of these boride layers were in the range of HV 1800∼2000. However, from the results of anodic polarization curve in 1M H₂SO₄solution on the borided specimens, it is found that the corrosion resistance is improved by boronizing treatment. Primary current density is, however, increased with the Boronizing temperature.