태백산맥 남부 동해안 하천 유역의 하안단구 지형 형성

이광률(Gwang-Ryul Lee) 대한지리학회 2014 대한지리학회지 Vol.49 No.1

본 연구는 태백산맥 남부에 위치한 울진 광천, 평해 남대천, 영덕 오십천을 대상으로 하안단구 지형 특성, 분포, 형성시기, 하각률을 분석하여, 지반융기와 기반암 특성에 의한 하안단구 형성과정을 추정하였다. 울진 광천 상류부의 구조 및 기후단구 1면은 하상비고 9~12m, 형성 시기는 MIS 2, 하각률은 0.40m/ka로 분석되었으며, 영덕 오십천 상류부의 구조 및 기후단구 1면은 하상비고 7~10m, 형성 시기는 MIS 3, 하각률은 0.10m/ka로 계산되었다. 이러한 결과는 울진 광천 유역이 영덕 오십천 유역에 비해 상대적으로 지반 융기율이 클 가능성을 의미한다. 울진 광천의 하류부는 영덕 오십천과 달리 해면변동단구가 확인되지 않는데, 울진 광천은 큰 융기율과 풍화·침식에 강한 기반암으로 인해 하곡에서 지형의 잔존 가능성이 낮은 것으로 보인다. 한편, 연구 대상 하천의 구조 및 기후단구는 가장 낮은 단의 형성시기가 다르고, 간빙기 내 기온 저하기와 아간빙기에 형성된 단구면도 확인되었다. 따라서 기존 기후단구 모델에 따른 하안단구 편년 방법에 대해 재고할 필요가 있다. This study estimates geomorphological processes of fluvial terraces by uplifts and bedrock features, by the analyses of topography, distribution, formation age and incision rate of fluvial terraces using Gwang-cheon River in Uljin, Namdae-cheon River in Pyeonghae and Osip-cheon River in Yeongdeok located in the southern Taebaek Mountain Range. The tectonic and climatic terraces I in the upper reaches of Gwang-cheon River with an altitude from riverbed of 9~12m indicate the formation age of MIS 2 with a incision rate of 0.40m/ka. However, the tectonic and climatic terraces I in the upper reaches of Osip-cheon River with an altitude from riverbed of 7~10m show the formation age of MIS 3 with an incision rate of 0.10m/ka. These results suggest that the uplift rate in the Gwang-cheon River basin is likely to be higher than that in the Osip-cheon River basin. Unlike the lower reaches of Osipcheon River, the thalassostatic terraces are not found in the lower reaches of Gwang-cheon River, because the basin has low maintainable ability of landforms in river valley due to high uplift rate and bedrock properties resistant to weathering and erosion. On the other hand, the lowest tectonic and climatic terraces in the study areas indicate different formative ages and the terraces during the cooling stage in interglacial as well as during interstadial are also found. Therefore, this study suggests that chronological method for fluvial terrace by the previous developmental model of climatic terrace should be reconsidered.

염산용액에서 PC88A에 의한 Sm의 용매추출

이만승,이광섭,이진영,김성돈,김준수 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.10

Solvent extraction experiments of Sm were performed from chloride solution with PC88A and saponified PC88A. Solvent extraction reaction of Sm with PC88A and the corresponding equilibrium constant were evaluated from the experimental and ionic equilibria data as follows Sm^(3+)_(aq)+ 1.5H₂A_(2,org)= SmA_(3,org)+ 3H^(+)_(aq) , K = 0.33. The predicted distribution coefficients of Sm agreed well with the experimental results. The distribution coefficients of Sm with saponified PC88A and the values of equilibrium pH depended on the initial extraction conditions. When the concentration of PC88A was in excess of that of Sm, saponification of PC88A greatly enhanced the extraction of Sm. (Received June 21, 2004)

염산용액에서 비누화 PC88A에 의한 용매추출로 Gd와 Sm의 분리

이만승,이광섭,이진영,김성돈,김준수 대한금속재료학회 2005 대한금속·재료학회지 Vol.43 No.5

Solvent extraction experiments have been performed to separate Gd and Sm from chloride solution with PC88A and saponified PC88A. The effects of extraction conditions on the distribution coefficients of Gd and Sm were investigated. The distribution coefficients of Gd were higher than those of Sm in the experimental ranges of experimental conditions of this study. A solvent extraction model was developed to predict the distribution coefficients of metals and separation factor between Gd and Sm from the initial extraction conditions. The measured distribution coefficients of Gd and Sm with PC88A and saponified PC88A showed good agreements with the predicted values. (Received March 3, 2005)

비누화 PC88A에 의한 NdCl₃와 SmCl₃용매추출의 화학모델

이만승,이광섭,이진영,김성돈,김준수 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.10

A chemical model was developed to estimate equilibrium constant for the solvent extraction of Nd and Sm from chloride solution with saponified PC88A. The model could be employed to predict the distribution coefficient of metal from the initial extraction conditions. The model consisted of chemical equilibria, mass balance, charge balance and solvent extraction reaction. By applying the model to the experimental conditions and data, equilibrium constants for the solvent extraction of Nd and Sm were obtained. The effect of the saponification of PC88A on the extraction of Nd was explained in terms of the equilibrium constant obtained in this study and the change of equilibrium pH. The predicted distribution coefficients of Nd and Sm agreed well with those measured. (Received July 14, 2004)

Functional Properties of Permeate Fractions Obtained from Bastard Halibut Roe Extracts by Ultrafiltration and It’s Biological Activities

Gyoon-Woo Lee1,In Seong Yoon,Su Gwang Lee,Jung-Suck Lee,Young-Mi Kang,Jin-Soo Kim,Min Soo Heu 한국수산해양기술학회(구 한국어업기술학회) 2016 한국수산해양기술학회 학술발표대회 Vol.2016 No.10

Family Origin Names and Haplotypes of Y - DNA in Korean Population

Kim, Jong Soon,Kim, Yung Jin,Ahn, Gwang Sook,Lee, Ju Won,You, Sun Ah 한국유전학회 1996 Genes & Genomics Vol.18 No.4

The use of restriction fragment length polymorphisms (RFLPs) has been proposed for the construction of a human genetic linkage map and also become a powerful tool in human population genetics. Human Y-chromosome which is haploid and paternally inherited is valuable for investigating male-mediated gene flow and for complement maternally based studies of mtDNA. We have studied 166 samples from 4 kinds of family origin names such as Kyungju Kim, Kimhae Kim, Chunju Lee and Milyang Park based on the 49aTaq 1 polymorphisms, and a total of 25 haplotypes were observed. The B, F, and I bands is observed in all haplotypes and haplotype showing A3, B, D2, D3, F, and I bands is common haplotype except for Chunju Lee. The result obtained are summarized as follows.

축척 모형실험에 의한 흡음특성의 시뮬레이션에 관한 연구

이광태 慶南大學校 附設 工業技術硏究所 1997 硏究論文集 Vol.14 No.2

음향모형 실험중에서도 다목적홀이나 콘서트 홀 등의 실내음장 특성을 검토하기 위하여 자주 이용되는 1/10축척의 모형실험에서는, 반사나 흡음면의 경계조건에 관한 비교적 높은 정도의 시뮬레이터가 요구된다. 또한, 현재로는 각종 흡음재료 또는 흡음기구의 흡음률 데이타는 상당한 양에 이르고 있지만, 실제로 음향설계를 행할 때에 재료, 구조에는 무수한 베리에이션이 있을 수 밖에 없고, 또 지금까지 예가 없는 구조를 새롭게 하는 경우도 있다. 이와 같은 경우에 개략의 흡음률 혹은 흡음특성이 간단한 모형실험으로 예지할 수가 있으면 아주 유효하다. 그래서 본 연구에서는, 경계조건으로서 내장재 흡음특성을 1/10척도의 모형실험에서 어느 정도까지 시뮬레이터할 수 있는가를 검토하기 위하여, 흡음기구별로 각종 흡음구조의 1/10축척모형을 만들고, 실물재료의 데이타 값과 대응시키 위하여 모형 잔향실을 이용해서 잔향실법 흡음률을 측정했다. 그 결과, 단면의 크기, 재료의 면밀도를 조절하고, 구조체를 축척비에 따라 모형화함으로써, 거의 모든 흡음기구에 걸쳐서 실물 흡음재의 흡음특성을 꽤 높은 정도로 시뮬레이션할 수 있는 것을 확인하였다. 앞으로, 본 연구에서 사용한 5종류의 정도의 흡음구조를 갖는 내장재를 이용하여, 손쉽게 실제의 홀의 음장에 충분히 근사한 모델 음장을 만들어 낼 수 있을 것으로 생각된다. It is necessary to simulate the boundary condition of reflective and absorptive surfaces, in order to check the sound characteristics at the stage of detailed design for the multi-purpose or concert hall. Therefore, it is the purpose of this study to ensure which extent the absorptive characteristics of inner surface materials can be simulated to in the 1/10 scaled model test. So, first we regulate the section size and surface density of the absorptive structures(that is to say, reflected panel, panel vibration, porous absorptive material, rib wall and perforated panel)on the basis of 1/10 scaled ratio. And second We measure the absorptive coefficient of the scaled absorptive structure in the 1/10 scaled reverberation room. Finally we estimate the measured data.

事務所 建築物에서 適正 駐車方式 選定基準에 關한 硏究

이광태 慶南大學校 附設 工業技術硏究所 1997 硏究論文集 Vol.15 No.1

都心地內 사무소 건축물의 大型化·高層化는 도심권의 교통량 집중으로 이어지고 있어 도심권에서의 交通大亂은 중요한 사회적 문제로 대두되고 있다. 이들 사무소 건축물 부설주차장의 경우 주차공간의 확보는 법제상으로 보다 강화되어 가는 추세를 보이고 있다. 그러므로, 건축물 부설주차장의 주차공간 확보 문제는 건축계획단계에서 아주 중요한 결정인자로 작용하고 있다. 그러나 지금까지는 내부 주차공간 계획을 중심으로 연구가 주로 행하여져 왔다. 또한, 도로에서 부지내로의 진출입, 지상주차 및 車路, 지하주차장의 주차출입구와 관련된 외부 주차공간의 연구는 피상적인 내용으로 일관되어 왔다. 따라서 본 연구는 이러한 점에 착안하여 주차장 계획 및 설계시 효율적이고 합리적인 접근방법을 모색하고자, 전국에 散在한 130개의 사무소 건축물을 대상으로 하여, 垈地가 道路에 接하는 조건에 따라 대지면적 및 용적률에 따른 주차유형을 분류하여 이들에 대한 기준을 설정하고자 하였다. Recently, the office building inside downtown in the large city seems to be enlaged and high-rised, which has caused the traffic jam and been the important social problem. And so, the raws and regulations about parking will be regulated strongly enough to satisfy such increased parking demand. Therefore, it is the most important deciding factor in the planning stage to make the parking area enough and approach it easily. But the study was performed mainly on the focus of indoor or underground parking. And in the case of outdoor parking space from the main road to the entry ramp, the reasonable parking system was seldom studied on the basis of the conditios of the site and te building scale, and the checking schemes about those systems contain only superfical contents. On those concepts, we investigated existed parkng systems and extracted the most reasonable parking system necessary for the preliminary stage of planning and designing. Performing the study on the above-mentioned purpose, we found out and compared the relations of the parking types(like mechanical, one-way or two-way type) with arterial roads, site area and floor area ratio.

교합력, 교근과 두개안면골 형태의 관계 : 두부규격방사선사진과 초음파진단영상 분석

이미숙,최영철,최성철,김광철 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.3

교합력과 교근의 두께 및 면적 그리고 두개안변골 형태 간의 연관성을 평가하고자 하였다. 성인 141명의 교합력 측정,측방 및 후전방 두부규격방사선사진 그리고 교근 표층의 초음파진단영상을 촬영한 후, 이들 간의 관계를 통계분석으로 비교,평가하였다. 교합력과 두개안면골의 형태간에는 남녀 모두 유의한 상관관계가 있으며,교합력과 교근 간에는 남녀 모두 유의한 상관관계가 없었다. 그러나 교근은 남자의 두개안면골 형태에서 유의한 상관관계를 보였고, 특히 교근의 두께 및 면적이 증가할수록 상악너비가 유의하게 감소하게 나타났다. 이는 남자의 교합력은 심층 교근과 관계가 크고,여자의 교합력은 표층 교근과 관계가 큰 것이 원인으로 판단된다. The aim of this study was to investigate the relationships between bite force, masseter muscle and craniofacial morphology. 141 individuals were included. Bite forces were measured with a bite force transducer(SKT 2004). The facial morphology of the samples was evaluated on the Lateral and PA cephalometric radiographs(Asahi CX-90 SP). Ultrasonographic images were obtained for 36 individuals (Logiq 500). General status of the subjects were also measured for investigating possible relationships. Their relationships were analyzed by means of t-test. Pearson's correlation coefficients and simple regression analysis, In conclusion, bite force of molar was significantly correlated with craniofacial morphology for males and females, but not to masseter muscles. The masseter muscle for males had a significant correlation with craniofacial morphology. The unexpected negative correlations between size of masseter muscle and maxillary width was revealed for males. One possible way to arrive at a plausible explanation for the correlation between masster muscle, bite force and craniofacial morphology of males were the deep layer of masseter muscle had a great influence on males and the superficial layer of masseter muscle had a great influence on females.

PCA 기반 파라미터를 이용한 숫자음 인식

이광석 진주산업대학교 산업과학기술연구소 2003 산업과학기술연구소보 Vol.- No.10

The new method of feature extraction is proposed, considering the statistic feature of human voice, unlike the conventional methods of voice extraction. PCA(principal Component Analysis) is applied to this new method. PCA removes the repeating of data after finding the axis direction which has the greatest variance in input dimension. Then the new method is applied to real voice recognition to assess performance. When results of the number recognition in this paper and the conventional Mel-Cepstrum of voice feature parameter are compared, there is 0.5% difference of recognition rate. Better recognition rate is expected than word or sentence recognition in that less convergence time than the conventional method in extracting voice feature. Also, Better recognition rate is expected when the optimum vector is used by statistic feature of data.