논산 관촉사 석조미륵보살입상의 암석학적 특성과 풍화훼손도

윤석봉,곽연천,박성미,이정은,이찬희,최석원,Yun, Seok-Bong,Kaug, Yean-Chun,Park, Sung-Mi,Yi, Jeong-Eun,Lee, Chan-Hee,Choi, Seok-Won 대한자원환경지질학회 2006 자원환경지질 Vol.39 No.6

논산 관촉사 석조미륵보살입상은 흑운모가 많은 중립 내지 조립질 화강섬록암으로서 암회색을 띠며, 미약한 편마상 구조 및 페그마타이트 세맥이 발달한다. 이 석불입상과 기반암의 전암 대자율 측정 및 지구화학적 분석 결과, 두 암석은 동일 마그마로부터 형성되어 거의 유사한 분화과정을 경험한 것으로 보인다. 이 암석의 CIA는 기반암이 51.43, 석불입상이 50.86이며, WPI는 각각 4.52와 8.95로서 이들은 모두 풍화잠재력이 큰 것으로 나타났다. 이 석불입상은 열화 및 박리에 의한 물리적 풍화가 진행된 상태이고, 이차적인 오염물질과 침전물질이 산재해있다. 기반암도 불연속면의 발달에 따른 지반붕괴의 위험성을 내포하고 있다. 이 석불입상의 표면은 황갈색으로 변색되어 있고 암회색 및 암흑색 침전물이 형성되어 있다. 또한 고착지의류의 피도가 심하고 균류, 조류 혹은 선태류 등도 발견된다. 따라서 이석불입상의 복합적 손상에 영향을 줄 수 있는 요인들을 제어하기 위한 주변 환경에 대한 정리가 시급하며 지의류에 의한 오염, 박리 및 균열로부터 석불입상을 보호하기 위한 체계적인 보존과학적 관리가 요구된다. The Standing Buddha Statue in the Gwanchoksa temple consists of medium to coarse grained biotite granodiorite with dark grey color, and it has a week gneissosity along the pegmatite veins. The results of magnetic susceptibility and geochemical patterns of the host rock of Standing Buddha Statue and the basement rock suggest that both values are formed from the co-genetic magma with the same differentiation process. The CIAs of the basement rock and the Standing Buddha Statue are calculated to 51.43 and 50.86, and the WPIs are estimated 4.52 and 8.95, respectively. So the weathering potential from the host rock of Standing Buddha Statue and basement rock prove to be high. The Standing Buddha Statue is terribly damaged with physical weathering from deterioration and exfoliation, and are scattered with secondary pollutant and precipitate. Basement rock is also in danger of ground collapse because of irregularly developed discontinuity system. Most surface of Standing Buddha Statue is seriously discolored into yellowish brown and dark gray, or black precipitates are also formed. Moreover, it is heavily covered with crustose lichen, fungi and algae, or moss are also found. In order to control the influential factors with the complex deterioration of Standing Buddha Statue, it is needed to rearrange a site environments, and conservation scientific management is required to protect it from covering lichens, exfoliations and fractures.

여러종류의 MONOMORPHISM과 EMBEDDING 과의 관계 및 EMBEDDING의 어떤성질에 관한 연구

윤석봉 동국대학교 대학원 1989 연구논집 Vol.19 No.-

Comparative Anatomy of the Korean Native Goat 1. Muscles of the thoracic limb

윤석봉,문희철,김창기,Yoon, Suk Bong,Mun, Hi Cheol,Kim, Chang Key The Korean Society of Veterinary Science 1974 大韓獸醫學會誌 Vol.14 No.2

한국재내산양(韓國在來山羊) 11마리의 전지근(前肢筋)을 절개하여 관찰하였던 바 다음과 같은 결과를 얻었다. 1. 한국재내산양(韓國在來山羊)의 전지(前肢)에서는 다음과 같은 근(筋)들을 관찰할 수 있었다. 승모근(僧帽筋) M. trapezus, 릉형근(菱形筋) M. rhomboideus, 완두근(腕頭筋) M. brachiocephalicus, 쇄골하근(鎖骨下筋) M. subclavius, 견갑횡구근(肩甲橫究筋) M. omotransv-ersarius, 란배근(瀾背筋) M. latissimus dorsi, 천흉근(淺胸筋) M. pectoralis guperficialis, 탐흉근(探胸筋) M. pectorlis profundus, 복거근(腹鋸筋) M. serratus ventralis, 삼각근(三角筋) M. deltoideus, 극하근(棘下筋) M. infraspinatus, 극상근(棘上筋) M. supraspinatus, 견갑하근(肩甲下筋) M. subscapularis, 대원근(大圓筋) M. teres major, 소원근(小圓筋) M. theres minor, 전완근막장근(前腕筋膜張筋) M. tensor fascia antebrachii, 삼두완근(三頭腕筋) M. triceps brachii, 주근 M. anconeus, 이두완근(二頭腕筋) M. biceps brachii, 상완근(上腕筋) M. brachialis, 조훼완근(鳥喙腕筋) M. coracobrachialis, 요완신근(橈腕伸筋) M. extensor carpi radialis, 고유제삼지신근(固有第三指伸筋) M. extensor digiti tertii proprius, 총지신근(總指伸筋) M. extensor digitorum cemmunis 고유제사지신근(固有第四指伸筋) M. extensor digiti quartii proprius, 척완신근(尺腕伸筋) M. extensor carpi ulnaris, 장모지외전근(長母指外轉筋) M. abductor pollicis longus, 척완굴근(尺腕屈筋) M. flexor carpi ulnaris, 요완굴근(橈腕屈筋) M. flexor carpi radialis, 원회내근(圓回內筋) M. pronator teres, 천지굴근(淺指屈筋) M. flexor digitorum suprficialis, 탐지굴근(探指屈筋) M. flexor digitorum profundus, 골간근(骨間筋) M. interosseus medius. 2. 천흉근(淺胸筋)과 심흉근(深胸筋)은 각각 전부(前部)와 후부(後部)로 명확히 분리(分離)되어있으며 특히 심흉근(深胸筋)의 전부(前部)와 후부(後部)는 서로 떨어져서 기시(起始)를 하고있어 그 사이에는 흉골(胸骨)이 노출되어 있었다. 3. 쇄골하근(鎖骨下筋)은 전예(全例)에서 관찰할 수 있었다. 4. 조탁흉근(鳥啄胸筋)은 소나 양에 비하여 매우 발달하였으며 특히 3예(例)에서는 더욱 발달하여 3개의 부분(部分)으로 되어있어 상완골 내측면 거의 전체를 덮고 있었다. 5. 주근, 소원근(小圓筋) 등 소동물(小動物)에서는 작은 근(筋)들이 매우 발달하였으나 장모지외전근(長母指外轉筋)은 엷고 작았다. 6. 반추류(反芻類)에서 가끔 볼 수 있는 M. extensor pollicis는 관찰할 수 없었다.

羽毛粉 製造에 關한 硏究

尹錫鳳 서울대학교 1973 서울대학교 論文集 Vol.23 No.-

This experiment was caried out to investigate optimum time and pressure in feather meal processing. The results obtained are as follows. 1) Pepsin-hydrochloric acid digestibility and bulk density was improved in proportion to processing time and pressure. 2) With over processing in time and pressure, feathers changed in dark color and solubilization occurred. 3) Data obtained from this experiment was shown that the processing at 30 p.s.i. for 120 minutes was most effective.

개의 反回喉頭神經의 有髓纖維에 關한 硏究

尹錫鳳 서울대학교 1959 서울대학교 論文集 Vol.9 No.-

Experiments were conducted to study the characteristics of myelinated fiber size frequency distribution of the recurrent laryngeal nerves in dogs, as a part of the comparative study of the recurrent larygeal nerves of various domestic animals. The present study was made on 5 Korean mongrel dogs (Habitat, Korea). Three were healthy within normal limits and under 6 months old, and the other two were over 12 months old. Specimens from the latter were removed immediately after the animals died, one by accident and another of surgical failure. Portions of the nerve about 3 ㎝. in length were removed respectively, 3 ㎝. posterior from both left and right recurrent laryngeal nerves at the following positions, 3 ㎝. posterior to the point of the entry into the larynx and from a point approximately 3 ㎝. anterior to the bifurcation of the common carotid artery. Thus taking 4 specimens from each dog. For the study of myelinated firbers the nerves were fixed in Flemming's fluid, and cross sections of 6 micra were made. The sections were stained by Walter's mondification of Weigert-Pal method. Microphotographs were taken and enlarged 750 times the actual size, and the diameter of the photographic images of the myelinated fibers was measured by the scale devised from transparent Perspex plate.

n-hexane 과 tetrachlorodiphenyl 이 닭에 미치는 영향

윤석봉,Yoon, Suk Bong 대한수의학회 1971 大韓獸醫學會誌 Vol.11 No.1

The effects of n-hexane and tetrachlorodiphenyl on the growth rate, the blood picture and histopathological change induced were observed in chicken. A total of 350 chicken were fed various daily dosages of n-hexane and tetrachlorodiphenyl for the experimental period of 60 days. The results obtained were as follows. 1. The growth rate of chicken in the group fed 100 ppm of tetrachlorodiphenyl was reduced (p<0.05). However no significant results were observed in the other dosage groups. 2. The reduction of the growth rate was found only in the liver and the kidney but not found in the other orgns. 3. No significant results were found in the number of erythrocytes and hematocrit value. However, the number of leukcocytes of chicken in the group fed 100 ppm of tetrachlorodiphenyl was significantly low. 4. In both n-hexane and tetrachlorodiphenyl groups, the number of lymphocytes was found to decrease but the number of basophiles and eosinophiles were found to increase (p<0.05). 5. All the chicken fed 300 ppm of tetrachlorodiphenyl died between 7th and 9th days. 6. Fatty change of hepatic cells and cloudy swelling of epithelia of renal tubules were found in the group fed 0.5 ml of n-hexane. However, in the group fed more the 100 ppm, fatty change of hepatic cells was followed by necrosis and comparatively severe cloudy swelling was found in epithelia of renal tubules.

가축(家畜)의 반회후두신경(反回喉頭神經) 유수섬유(有髓纖維)에 관(關)한 연구(硏究) 제(第)VI보(報) 가축(家畜)의 반회후두신경(反回喉頭神經) 유수섬유(有髓纖維)의 특징(特徵)

윤석봉,Yoon, Suk Bong 대한수의학회 1966 大韓獸醫學會誌 Vol.6 No.1

Studies On the myelinated fibers of the recurrent laryneal nerves were made in five, species of domestic animals namely dog, pig, goat, horse and Korean ox. Throughout the studies, the following characteristics of the myelinated fibers were obtained. 1. The number, size and cross sectional area of the myelinated fibers seemed to be proportionally related to the animal body weights. 2. The highest peak of diameter size frequency distribution of the myelinated fibers, observed at the right cranial level, in dog, goat and horse were 4-6 micron group, while in the case of Korean ox, 10-12 micron group was the highest. 3. The highest peak of diameter size frequency distribution of the myelinated fibers, observed at the right caudal level of Korean ox was 6-8 micron group, and 4-6 micron group was the highest in the other animals. 4. The highest peak of diameter size frequency distribution of the myelinated fibers obsered at the left cranial level was same to that of right cranial level. 5. The highest peak of diameter size frequency distribution of the myelinated fibers, observed at the left caudal levels in dog, goat, horse and Korean ox was 4-6 micron group, while in case of pig, $14-16{\mu}$ group was the highest. 6. The largest cross sectional areas were found in the group of 10-16 micron in all species of animals. 7. The fiber diameter size frequency distribution of recurrent laryngeal nerves of dog, goat, pig and horse were bimodal and Korean ox seemed to be a unimodal.

家畜의 反回喉頭神經 有髓纖維에 關한 硏究 : 第Ⅴ報 韓牛의 反回喉頭神經의 有髓纖維 Ⅴ. The Myelinated Fibers in the Recurrent Laryngeal Nerve of the Korean Ox

尹錫鳳 서울대학교 1966 서울대학교 論文集 Vol.17 No.-

This experiment was carried out to study the characteristics of myelinated fiber size frequency distribution of the recurrent laryngeal nerves in oxen, as a part of the comparative study of the recurrent larynegeal neves of various domestic animals. This study was made on 5 Korean oxen(yellow cattle) over 5 years old. For the study of myelinated fibers the nerves were fixed in the Flemming's fluid and stained with a modified Weigert-Pal method. Details of the microphotographs and measurements have already been given in a previous report.(Author.^19) 1959) The characteristics of the total number of myelinated fibers and the fibers size frequency distributions which appeared in the cranial and caudal cross-sectional laryngeal nerves of the Korean oxen were as follows: 1. The mean value & S.D. of the myelinated nerve fibers were 2,520±223 at the right cranial, 4,539.4±341 at the right caudal, 2,389.4±125 at the left cranial, and 5,057±64 at the left caudal level. 2. It was confirmed that the average total cross sectional areas of the myelinated fibers was 243,526.8±20,100μ^2 at the right crarnial, 392.871.8±39,260μ^2 at the right caudal, 236,343.6±33,400μ^2 at left cranial and 406,101.0±41,900μ^2 at the left caudal level respectively. 3. In the right recurrent laryngeal nerve, the highest peak of the cranial level was found in the 10-12μgroup with its mean & S.D. was 503.6±133, 19.98%,and the peak of the caudal level showed in 6-8μ group with its mean & S.D. was 915.8ㄷ6153, 20.17%. 4. The peak of the cranial level in the left recurrent laryngeal nerve, the peak was in the 4-6μ group with its mean & S.D. was 978.2±374, 19.34%. 5. In the left caudal level of the recurrent larylgeal nerve, the peak was in the 4-6μ group with its mean & S.D. was 978.2±374, 19.34%. 6. In the caudal levels showed the fiber population more than twice the cranial levels in the 4-6μ, 6-8μ and 8-10μ groups. 7. The largest cross sectional area was in the 12-14μ group with its mean & S.D. was 65,773.2±4,910μ^2, 27.10% at the right cranial. 8. The fiber diameter size frequency distribution of the oxen seemed to be a unimodal.

肉用動物의 增體率 및 肉質改善에 關한 硏究

尹錫鳳,成在基,權完國 서울대학교 1967 서울대학교 論文集 Vol.18 No.-

Tapazole at the level of 0.01 percent, and iodocasein of 0.17 percent of the basal ration of the chicken, and 6 mg. of diethylstilbestrol implanted in the subcutaneous tissue, were tested to measure their influence on daily gains, carcass percentages, and histological features of a week- old 64 New Hamspshire chicken divided into 4 groups. The results were as follows: (1)Daily gains: Tapazole in the males and iodocasein in the females increased the daily gains significantly (P<0.05) in the chicken, and diethylstilbestrol in the females retarded the growth significantly (P<0.05). (2)Carcass percentages: In the females, the tapazole group was higher than the control group in carcass percentages (P<0.01), and in the males, the iodocasein group was significantly lower than the control group (P<0.05). (3) Weights of liver: The weights of liver were increased in the males of tapazole group (P<0.01), and they were increased in the females (P<0.01) and the males(P<0.05) of the iodocasein group. Diethylstilbestrol increased the weights of liver about two

Weil Descent of Jacobians in Elliptic Curve Cryptosystem

윤석봉(Suk-Bong Yoon) 동의대학교 정보통신연구소 2005 정보통신연구지 Vol.6-2 No.-

The technique of Weil restriction of scalars has significant implications for elliptic curve cryptography. In this paper we apply these ideas to the case of the discrete logarithm problem for Weil descent attack in the Jacobian of a curve of genus greater than one ver a [mite field IF qⁿ where n > 1.