Indoor short track speed skating 500m, 1000m 滑走時 運動强度에 關한 硏究

李正秀,曺泰浩,柳喜男,卞宰文 경희대학교 체육과학연구소 1985 體育學論文集 Vol.13 No.-

(Conclusion) With 4 Indoor short track topped skating players of junior as the subjects, this research was made in order to reveal the degree of work intensity by measuring how %H.R max would change when they do the skating 500m, 1000m. The results are as follow. 1.Work intensity of 500m skating. Mean H.R was appeared 161.25 ± 10.88 beats/min, %H.R max was 76.02% as 500m skating, H.R max as 500m skating was appeared 174.00 ± 9.90 beats/min,% H.R max they had skated. 2.Work Intensity of 1000m skating. Mean H.R was appeared 166.88 ± 17.92 beats/min,% H.R max was 80.64%, as 1000m skating, H.R max was appeared 183.75 ± 6.34 beats/min,% H.R max was 94.48% as they had skated 1000m. 3.Correlation coefficient and regression line equation between H.R max and speed as skating. Correlation coefficient was seen certainly as 0.467 between H.R max and speed, was at the level of 1% (P < 0.01), Sy. x was placed nearly on the regression line, regression equation was appeared Y = 0.05x-0.81. (Suggestion) As 500m, 1000m skating are end within short time, they have to progress the technique and work capacity so that they are able to exhibit the speed within short time after start.

제주도 일원에 분포되는 근원암의 차이에 따른 점토광물 조성

권선영,문희수 연세대학교 자연과학연구소 1989 學術論文集 Vol.22 No.-

제주도를 구성하는 염기성 화산암류 및 화산쇄설성 퇴적암류 및 이들 암류로부터 기원된 고토양 층준으로부터 분리된 <2㎛시료로부터 스멕타이트, 버미큘라이트, 일라이트, 녹니석 및 카올리나이트 등의 점토광물조성을 동정하였다. 이들 광물조성비는 근원암류의 종류 및 지질학적환경의 차이에 따라 약간의 차이를 보인다. 근원암이 화산쇄설성 퇴적물인 경우에는 스멕타이트가, 고토양내에서는 녹니석이, 그리고 화산회성 토양에서는 지역에 따라 각기 녹니석, 스멕타이트 및 일라이트가 우세한 양상을 보인다. 대부분의 점토광물은 풍화 및 속성작용에 의한 화산유리질의 변질산물이다. The clay size fractions of basic volcanic rocks, pyroclastic rocks and paleosol were investigated by X-ray diffractometry and scanning electron microscopy. The clay minerals in these <2㎛ size fractions are smectite, vermiculite, illite, chlorite, and kaolinite. The clay mineral assemblages vary slightly from sample to sample depending on the nature of parent materials and the geological environments. Morphologies of the bulk samples by scanning electron mocroscopy revealed that neoformation of these clay minerals at the volcanic glass periphery. It suggest that diagenetic and weathering processes contribute dominantly to the formation of these clay minerals.

원격탐사를 위한 병렬계산 기법

김형중,장태정,김희원,김형수,이정문,장순자 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

원격탐사에 사용되는 편미분방정식을 고속으로 풀기 위한 기법을 프로그래밍하고 성능을 향상시킬 수 있는 방법을 제시했다. 미지수가 30만개 이상되는 복소수(non-Hermitian) 행렬의 해를 구하는 프로그램을 작성했다. 이 프로그램은 C와 PVM에 기반을 두고 있다. 수렴속도를 향상시키기 위해 대각 스케일링을 이용했다. 통신속도의 개선을 위해 데이터 압축 기법을 이용했다. 수렴속도를 측정 제시함으로써 실제 문제 적용에 참고할 수 있다. Network-based computing with cluster of personal computers or workstations recently has become an important and successful technique. Network-based computing enables fast computation and resolves short of storage with computers on the desks. Cluster of inexpensive computers offers them aggregated computing power and storage to challenge very large-scale problems. Iterative solvers are used for the large sparse linear systems. Preconditioners accelerate the rate of convergence of the iterative solvers. However, parallelization accelerate the rate of convergence of the iterative solvers. However, parallelization of preconditioners is far from satisfaction so far. Thus, the simplest diagonal scaling is a good alternative for improved convergence and easy parallelization. In order to reduce communication overhead, a data compression technique is considered. Data communication time can be reduced at the cost of convergence rate. MATLAB simulation result is given in this paper. This method is effective to cluster of computers connected through slow networks.

甘浦地域 Ca-몬모릴로나이트의 鑛物學的 및 熱的特性

Hi Soo Moon(文熙壽),Jae Yeong Ahn(安載榮),Sun Kyung Choi(崔善卿),Moon Young Kim(金炆,榮),디. 제이. 모간(D. J. Morgan) 대한자원환경지질학회 1989 자원환경지질 Vol.22 No.3

Eight under 2 micron size fractions of the montmorillonite from Jugjeonri area, Gyeongsanbug-do, were studied and then this result has been compared with data from Yongdongri area. Montmorillonites occurring at the same stratigraphic horizon in each area show limited variation in chemical composition, but shows some degree of differences in exchangeable cation compositions and total layer charges of montmorillonites from Jugjeonri to Yongdongri area. In general, samples from Jugjeonri show higher amount of exchangeable Na and layer charge due to relatively higher substitution of Mg for Al in octahedral sites than those from Yongdongri area. But Their dehydroxylation endothermic peaks of the samples from both areas are abnormal type with a small range of variation of peak temperature. This variation seems to reflect tetrahedral substitution of AI for Si for samples from Yongdongri whereas samples from Jugjeonri do not show shuch a tendency. However, samples from Jugjeonri proved to be relatively higher dehydroxylation peak temperatures than those of the other. DSC data for sample from Jugjeonri also show that divalent-cation saturated montmorillonite have relatively a higher endothermic heat capacities than monovalent-cation saturated one as shown in previous work. Two different morphologies of montmorillonites, honeycomb structure and closely packed intergrowth, by SEM were observed in samples from both areas but the later one is common. The scalloped type is relatively abundant in the sample from Yongdongri than the other. The dominant habit by TEM are irregularly shaped foliated aggregates and platy shaped particles. In general, foliated aggregates which are easy to disperse are relatively abundant in the samples from Jugjeon compared with those from Yongdongri area.

Chemiresistive Sensor Array Based on Semiconducting Metal Oxides for Environmental Monitoring

( Hi Gyu Moon ),( Soo Deok Han ),( Min Gyu Kang ),( Woo Suk Jung ),( Ho Won Jang ),( Kwang Soo Yoo ),( Hyung Ho Park ),( Chong Yun Kang ) 한국센서학회 2014 센서학회지 Vol.23 No.1

We present gas sensing performance based on 2Χ2 sensor array with four different elements (TiO2, SnO2, WO3 and In2O3 thin films) fabricated by rf sputter. Each thin film was deposited onto the selected SiO2/Si substrate with Pt interdigitated electrodes (IDEs) of 5m spacing which were fabricated on a SiO2/Si substrate using photolithography and dry etching. For 5 ppm NO2 and 50 ppm CO, each thin film sensor has a different response to offers the distinguishable response pattern for different gas molecules. Compared with the conventional micro-fabrication technology, 2Χ2 sensor array with such remarkable response pattern will be open a new foundation for monolithic integration of high-performance chemoresistive sensors with simplicity in fabrication, low cost, high reliablity, and multifunctional smart sensors for environmental monitoring.

三紀層에 胚胎된 벤토나이트의 酸素 및 水素同位元素 硏究

Hi Soo Moon(文熙壽) 대한자원환경지질학회 1986 자원환경지질 Vol.19 No.5

Hydrogen and oxygen isotope ratios of thirteen of the under 2 micron size fraction of the montmorillonites were measured. The oxygen isotopic compositions of these samples range from +17.0 to +25.1 permil and the hydrogen isotope compositions range from -47.5 to -65.8 permil with an average standard deviation of 0.7 and 2.7 permil, respectively. The oxygen isotope compositions show a positive relationship with stratigraphy whereas the hydrogen isotope compositions do not. It suggest that the montmorillonite attained isotopic equilibrium at the maximum burial depth and ratained their oxygen isotope composition on subsequent uplift. Possibilities of montmorillonite formation by weathering or hydrothermal alteration of volcanic material are eliminated by the δD and δ¹⁸O values of these samples. Calculated formation temperature lie between 29 to 80℃.

海南地域 火山岩類와 납석 및 고령토 鑛床의 K-Ar 年代

Hi Soo Moon(文熙壽),Young Hee Kim(金英姬),Jong Hwan Kim(金鍾煥),Jang Han You(柳長漢) 대한자원환경지질학회 1990 자원환경지질 Vol.23 No.2

A number of alunite and pyrophyllite deposits occur around the Haenam area where Cretaceous volcanic and volcanogenic sediments are widely distributed. The K-Ar ages of alunite, sericite and whole rocks collected from alunite and pyrophyllite deposits and unaltered rocks representing various stratigraphic horizon of the area were determined and their formation stage was discussed. The ages of volcanic rocks range between 68.6±1.9 and 94.1±2.0 Ma corresponding to Cenomanian-Maastrichtian of upper Cretaceous. Andesitic rock gives 94.1±2.0. Rhyolite and acidic tuffs give 79.47 ±1.7 and 82.8±1.2 Ma corresponding to Campanian. The later stage andesite gives 68.6±1.9 Ma of Maastrichtian. The results suggest that volcanism of the area can be devided into three different stages. The ages of alunite and sericite range 71.8±2.8 to 76.6±2.9 Ma of late Campanian to early Maastrichtian which is rather earlier than the age of granite(67 Ma). It indicates that the alteration ages of these clay mineral deposits appeared to be related with its volcanism rather than the hydrothermal stage of granite of this area.

Thermal and mineralogical characterization of Ca-montmorillonite from Gampo area

Hi soo Moon(文熙壽),Sun Kyung Choi(崔善卿),Moon Young Kim(金炆,榮) 대한자원환경지질학회 1988 자원환경지질 Vol.21 No.2

甘浦地域의 용동리에서 龍洞里凝灰岩내에 배태되는 Ca-몬모릴로나이트들은 비록 同一層準에서 産出되나 制限的이지만 化學組成의 差異가 나타난다. 이들의 열적특성은 “비정상型”으로 나타나며, 탈수와 관계된 흡열반응피크의 溫度는 사면체내의 Si를 치환한 Al의 양적비에 따라 약간 변화된다. 이러한 사실은 제한적인 화학조성의 변화는 열적특성에 큰 영향을 미치지 못함을 지시한다. 시차주사열량 측정결과 2가의 양이온으로 치환된 시료의 경우 1가의 양이온으로 치환된 시료보다 흡열용량이 증가되는 경향을 보이므로 시료내의 우세한 양이온의 종류를 예상할 수 있으며, 전기음성도가 큰 이온일수록 더 많은 물분자를 取함을 알 수 있다. Ten under 2 micron size fractions of the montmorillonite from Yongdongri area, Gyeongsangbug-Do were studied using X-ray powder diffraction, cation exchange measurement, differential thermal analysis, thermogravimetric analysis, differential thermal scanning calorimetry and chemical analysis. Montmorillonites occurring at same deposit show limited variation in chemical composition whereas in thermal properties they do not. Their dehydroxylation endothermic peaks are “abnormal” type with a small range of variation of peak temperature reflecting tetrahedral substitution of Al for Si. Data from DSC show that divalent-cation saturated montmorillonite has relatively a higher endothermic heat capacity than monovalent-cation saturated montmorillonite, indicating that cations with higher electronegativity hold more water molecules.

江華島 溫水里 地域 花崗岩의 風化作用에 의한 카올리나이트의 形成

Hi Soo Moon(文熙壽),Shin Ae Kim(金信愛) 대한자원환경지질학회 1989 자원환경지질 Vol.22 No.1

Strongly weathered granitic rocks are widely distributed in the south-eastern part of the Ganghwa island. Kaolinite developed during intense weathering on this granitic rocks have been studied mineralogically and chemically. Various weathering indexes were ca1culated on the basis of oxide. Those indexes are slightly varied with depth. It shows that the percentages of Al2O3 increase but that of CaO+Na₂O+K₂O decrease as the weathering progress. These results indicate that day minerals, mainly kaolinite with the appreciable amount of halloysite, were formed by the weathering of feldspars in the granitic rocks. X-ray diffraction, differential thermal analysis, infrared spectrometry and electron microscopy were used to characterize and estimate crystallinity of the kaolinite. Generally, Kaolinite shows a less sharp basal reflection and relatively low dehydroxylation temperature, indicating disordered kaolinite. They usually occur aggregates as a vermicular kaolinites showing loose basal plane stacking arrangement.

東洋滑石鑛床에서 産出되는 滑石에 대한 鑛物化學的 및 成因的 硏究

Hi soo Moon(文熙壽),Seang Tae Kim(金星泰) 대한자원환경지질학회 1988 자원환경지질 Vol.21 No.3

Talc deposit of pipe-like form occurrs in the lower part of the Hyangsanri Dolomite with a strike of N40 -50 E and a dip of 40 -50 NW which is one formation of the Ogcheon Super Croup. The pipi-like ore body plunge at about 40° to the west and are parallel to the lineation developed in the area. Structural formulae of tales occurred in this deposit are close to the ieal composition Mg₆Si₈O₂₀(OH)₄ showing limited deviation from ideal one. Substitution of Al for Si in tetrahedral site is of little or nothing ranging 0-0.04 and octahedral occupancy is close to six ranging 5.88-5.98 atoms per unit cell. Predominant octahedaral cation is Mg and proportion of divalent cations is generally over 97percent. Calcite -dolomite thermometry is obtained by determining the mol % MgCO₃using of EPMA and XRD methods. The peak metamorphic temperature can be estimated at 470±30℃ in the area whereas carbonates occurred at near talc ore show lower temperature than 400℃ that the calcite solvus limit is not well established. It indicates that the talc deposit was formed at the lower temperature that the metamorphic temperature. Cosequently, the formation of talc by metamorphism is questionable and the alteratin zone developed around the talc ore is very limited. The occurrence of talc ore in the dolomite as well as mineralogy, calcite-dolomite geothermometry, chlorite geothermometry, field and microscopic evidence suggest that siliceous ascending hydrothermal solution along the fracture is responsible for the formation of talc. It was considered that the slight fracturing of dolomite was formed by deformation prior to the mineralization.