Occurrence assessment of earth fissure based on genetic algorithms and artificial neural networks in Su-Xi-Chang land subsidence area, China

Wenjing Zhang,Li Gao,Xun Jiao,Jun Yu,Xiaosi Su,Shanghai Du 한국지질과학협의회 2014 Geosciences Journal Vol.18 No.4

Earth fissures in Su-Xi-Chang land subsidence areahave induced massive damages to the area. The non-linear characteristicassociated with the process of earth fissure formation requiresnon-linear method for evaluating the occurrence of the hazard. Based on quantification of influence factors on breeding the hazard,GA-ANN method, which integrates artificial neural networks(ANN) with genetic algorithms (GA), is developed for evaluating theoccurrence of earth fissure hazard. Six indicators, that include thedepth of bedrock burial (DBB), the degree of bedrock relief (DBR),water level (WL) (the II confined aquifer), the gradient of landsubsidence (GLS), transmissivity (T) (the II confined aquifer) andthe thickness of clay soil (TCS), are selected as the input patternsof the integrated approach, and danger index (DI) as the outputpattern. A multilayer back-propagation neural network is trainedwith 30 sets of data samples including 15 sets of earth fissure samplesand 15 sets of safety samples for defining the architecture ofANN. Subsequently, GA is employed by optimizing the initial weightsof trained ANN by minimizing the deviation of output. The efficacy ofthe integrated approach is demonstrated by comparing the deviationof output from ANN and GA-ANN for 5 testing samples andthe result shows that the GA-ANN method is more accurate thanANN in identifying the occurrence of earth fissure. The integratedmethod is applied to the assessment of earth fissure hazard in typicalregions of earth fissure. According to the classification of DI, theregions are divided into four zones ‒ danger zone, sub-danger zone,sub-safe zone and safe zone.

ESD(Electrospray Deposition)를 이용한 SU8 바이오센서 개발

김준완,김범준,히구찌토시로우,야마가따유따까,이원희,김동수,Kim, Jun-Wan,Kim, Beom-Jun,HiGuChi, Toshirowu,YaMaGaTa, Yutaka,Lee, Won-Hui,Kim, Dong-Su 재료연구소 2005 機械와 材料 Vol.17 No.1

투명전극을 이용한 태양전지의 제작 및 특성에 관한 연구

전철원,채건식,이수대,김영국 경남대학교 환경문제연구소 1987 환경연구 Vol.9 No.-

Highly conductive and transparent thin films of ITO are fabricated by spray Pylosis method. The parameters of these thin films are as follows : resistivity ρ=1.5x10^(-3) Ωㆍ??, transmission 90% over visible and IR region. The Parameters of SnO_(2) : F thin films are follows : resistivity ρ=1.8x10^(-3)Ωㆍ??, trans-mission 80% over visible ant IR region. ITO thin films have simple cubic structure with lattice constant α=10.2Å and polycrystalline with (400) and (222). SnO_(2): F thin films have tetragonal system with lattice constant α=4.8Å and polycrystalline with (110), (200), (211) and (310). Under AMI sunlight simulator, the Parameters for ITO/n-Si heterojunction solar cells are open-circuit voltage Voc =0.42 V, short-circuit current Isc =34mA, fill factor FF=0.67 and conversion efficiency η=10%. Under AMI sunlight simulator, the parameters for SnO_(2): F/n -Si heterojunction solar cells are open-circuit voltage Voc =0.36V, short-circuit current Isc =28mA fill factor FF=0.55 and conversion efficiency η=6%.

경부 청소술 후의 승모근기능

박준명,박동식,정광익,이언석,노영수 大韓再活醫學會 1998 Annals of Rehabilitation Medicine Vol.22 No.2

Al-Co 공정합금의 일방향응고에 관한 연구

전현용,박수정,이현규 조선대학교 생산기술연구소 2004 生産技術硏究 Vol.26 No.2

Microstructures of unidirectionally solidified Al-Co alloys made by a melt spinner were investigated. In this work, commercially pure a aluminum-cobalt alloys with compositions on the cobalt-rich side of the eutectic point were solidified vertically under the conditions of controlled crystal growth rate (R) and temperature gradientf G). The eutectic microstructure was varied according to the growth conditionl (G/R ratio). When G/R ration was lager than 8.5x10³℃/㎠/sec, the lamellar structure was formed, when G/R raton was smaller than 8.5x10³℃ /㎠/sec, the colony structure was formed. It was found that the interlamellar spacing(λ²) was depedent on the growth rate(R) through the relationship, λ² · R=constant.

두경부 편평상피암에서의 MIB-1, p53, bcl-2와 apoptosis의 발현 및 상호 연관성

손용준,한지용,윤형기,장수원,윤혜경,김우형,이희철 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.4

Objective : Squamous cell carcinoma of the head and neck represents approximately 2.0∼4.0% of all malignant tumors, with an etiology closely associated with smoking, drinking and various genetic alterations. The purpose of this study was to investigate the correlation of MIB-1, p53, bcl-2 and apoptosis according to degree of differentitation of squamous cell carcinoma. Methods and Material : forty-eight cases of squamous cell carcinoma of the head and neck were selected for this study. MIB-1, p53, bc1-2 expression rate were studied by iromunogistochemical staining and the number of apoptosis observed by TUNEL method. Results : The expressioins of MIB-1, p53, bcl-2 and apoptosis were found in 56.3%, 50.0%, 14.6%, 85.4%, of 48 cases of squamous cell carcinoma, respectively. The expression of MIB-1, p53 and apoptosis were more higher in poorly differentiated cases than well differentiated cases. MIB-1 expression was related with p53 mutation (p<0.05) and apoptosis rate(p<0.05). Conclusion : From these results. the expressions of MIB-1, bcl-2 and apoptosis were related with degree of differentiation of squamous cell carcinoma and correlation among these parameters.

乳房 腫瘍에 대한 病理學的 硏究

나기준,김수홍,서재홍 朝鮮大學校 附設 醫學硏究所 1992 The Medical Journal of Chosun University Vol.17 No.2

Using an antiserum against cardnoembryonic antigen, which was free from non-specific cross-reacting antigen activity, carcinoembryonic antigen has been demonstrated in 45 out of 90 breast carcinomas by an indirect immunoperoxidase method. The presence of carcinoembryonic antigen appears to be related to good histological type and differentiation, lymph node status and recurrence. Lactoferrin is an iron-binding protein present in saliva, milk, sweat, urine and secretion of the respiratory and digestive systems. These lactofemn might be involved in local and general defense mechanisms against bacterial and proteolytic enzymes. The present immunohistochemical study identifies lysozymes and lactoferrin in breast tumors. The results were as follows : 1) The immunohistochemical localization of carcinoembryonic antigen and lactoferhn was usually confined to intraluminal secretion in fibrocystic disease. 2) Positive staining for cardnoembryonic antigen was confined to intraluminal secretion in fibroadenoma. 3) Positive staining for carcinoembryonic antigen and lactoferrin was confined to intraluminal and epithelial cells in intraductal carcinoma. 4) Positive staining for carcinoembryonic antigen and lactoferrin was confined to intraluminal and epithelial cells in infiltrating ductal carcinoma. 5) Positive staining for carcinoembryonic antigen and lactoferrin was confined to intraluminal and epithelial cells in ductal carcinoma adjacent to normal glands. 6) On the ultrastructural study of breast tumor, Infiltrating ductal carcinoma show loss of basal lamina cell junctions and villi of cytoplasms, In conclusion, carcinoembryonic antigen and lactof en-in were also found in intraductal and ductal carcinoma of breasts. The correlation between the presence of

캐릭터 연동 온라인 3D 게임을 위한 실시간 모션캡쳐 시스템 개발

이준호,유영기,노병욱,이수진 선문대학교 ·중소기업기술지원연구소 2002 선문공대 연구/기술 논문집 Vol.7 No.1

최근들어 3차원 가상현실의 발전과 더불어 동작을 트랙킹하는 모션캡쳐는 엔터테인먼트, 의학, 스포츠, 교육, 산업등에 다양하게 널리 사용되어지고 있다. 특히 엔터테인먼트분야의 애니메이션과 게임등에서는 캐릭터의 생성에 모션캡쳐 기술을 사용하는데 기존에는 마우스, 조이스틱, 미디 슬라이더(Midi Sliders) 및 기타 장치들을 사용하여 캐릭터를 직접 연기시키는 방법을 사용하였으나 모션캡쳐에 의한 방법은 이전에 볼 수 있었던 그 어떤 방법보다도 자연스러운 움직임을 만들어낼 수 있다. 본 연구에서는 캐릭터를 연동한 온라인 3D 게임을 실현하기 위하여 광센서를 이용한 저가이면서도 빠른 샘플링 빈도를 갖는 모션캡쳐 시스템을 개발하고자 한다. Motion trackings are being used in part of the entertainment, medical, sports, education and industry with the development of 3D virtual-reality. In particular, the technology is used for animation and games as a part of entertainment. We can make very smooth motion that was never realized before, if we use the technology instead of using mouse, joystick, midi-sliders and so on for making some characters. In this research, we have developed a very low priced and fast sampling system using optic sensors for capturing the motion.

균일 가열 수직 원형관에서의 R-12 임계열유속 예측 상관식 개발을 위한 파라미터의 경향성 분석

이지수,이성우,박주용,김준연,심재우 한국공업화학회 2004 응용화학 Vol.8 No.2

The important parameters that have significant effects on the prediction of CHF (Critical Heat Flux) for R-12 (Dichlorodifluoromethane) were investigated. This was a preliminary study for a R-12 CHF correlation in uniformly heated vertical round tubes. Experimental data of Celata [1], Green and Stevens [2], Groenveld [3], Ilic [4], Katto [5], Merilo and Ahmad [6] and Stevens and Miles [7] were used for this analysis. Four representative CHF data sets at pressure condition of 9, 15, 19, and 27 bar were selected, analyzed, and compared to evaluate the effects other than the system pressure on the CHF were tube diameter (D), mass flux of water (G), and local true mass fraction of vapor (X_(t)). The results of this study have reaffirmed the feasibility that an advanced R-12 CHF correlation for uniformly heated vertical round tubes can be found.

경포호의 어류상 및 어류군집 특성

최준길,박승철,장영수,이광열,최재석 강원대학교 부속 환경연구소 2005 Journal of the Environment Vol.2 No.-

The characteristics of ichthyofauna and fish community in the Lagoon Gyeongpo, Korea were investigated from May to October 2005. The total number of fish caught during the period was representing 26 specis and 18 families. Most dominant species was T. hakonensis(50.65%) and subdominant specis was A. flavimaus(25.41%). K. punctatatus(11.07%), M. cephalus(6.53%), E. japonicus(1.46%), C. castaneus(1.01%) were also numerous. The total biomass of collected fish showed 147.00kg, 135.83kg, 85.60kg,23.76kg, repectively. A pattern of the fish community according to seasonal veriations appear to be related tp spawning periods of species. Comparison of the ichthyofauna in present study with the references from early years suggests that there has been a gradual decrease, in composition, of primary freshwater specis accompanying with the increase of peripheral freshwater and seawater specis.