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Jinhyung Kim,Dongwon Jeong,Doo-kwon Baik IEEE 2009 IEEE transactions on consumer electronics Vol.55 No.3
<P>Home network is one of the predominant applications in ubiquitous computing. In home network environment, we need semantic recommendation system for exact and abundant information recommendation to users. For semantic recommendation system, we construct ontology for user profiles and home network services firstly in this paper. In addition to, we suggest recommendation method for ontology-based semantic recommendation. By using the suggested system, we can support more precise and richer information recommendation.</P><P>Notice of Violation of IEEE Publication Principles 'Ontology-based Semantic Recommendation System in Home Network Environment' by Jinhyung Kim, Dongwon Jeong and Doo-kwon Baik in the IEEE Transactions on Consumer Electronics, Vol 55, No. 3, August 2009, pp. 1178-1184 After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles. This paper contains text and figures that have been copied from the paper cited below. The original text was copied without attribution (including appropriate references to the original author(s) and/or paper title) and without permission. Due to the nature of this violation, reasonable effort should be made to remove all past references to this paper, and future references should be made to the following article: 'Applying User Profile Ontology for Mining Web site Adaptation Recommendations' by Tarmo Robal and Ahto Kalja in the Proceedings of the 11th East-European Conference on Advances in Databases and Information Systems (ADBIS 2007), pp. 126-135 </P>
地下水位變動에 따른 崩壞土層內의 間隙水壓 計測에 關한 實驗的 硏究
鄭斗永,李廣俊 全北大學校 1992 論文集 Vol.34 No.-
The major element of landslide is the increase of pore water pressure in weaked failure layer. Therefore, the measurement of pore water pressure for rainfall infiltration and groundwater level is important. This work experimentally measure the pore water pressure in infiltration test considered groundwater level and negative pore water pressure in drainage state. The obtained results are summarized as follows : 1) Infiltration duration reciprocally depend on the void ratio. 2) The time lags of pore air pressure are delayed proportionally by descenting initial groundwater level. 3) The nagative pore water pressure is enlarged in small void ratio soils than large void ratio soils in drainage state.
정두성,박재현,김진환,최준 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.3
As modern society becomes increasingly complex, there has been a steady increase in violence, as well as in automobile and industrial accidents. This has resulted in an increased incidence of facial injuries, including mandibular fractures. Many methods have been advocated to achieve reestablishment of normal feature and function. The choice generally depends upon such factors as location of the fractures, displacements, status of the dentition and favorability of the fracture line. Many cases of mandibular fracture are treated by intermaxillay fixation using an arch bar or bite block(acrylic splint)for rapid bone union and minimal displacement. However, there had been some problems, such as discomfort to patients, limitation to eating and weight loss, poor oral hygiene, and temporomandibular joint ankylosis. As a consequence, we have modified the shape of the acrylic splint and method of fixation for circum-mandibular fixation instead of intermaxillary fixation. Acrylic splints are rigid, strong, easily adjusted and repaired, translucent, lightweight and well tolerated by the oral mucosa. The splints are properly secured to each tooth and bind all the teeth together as a single unit. Authors have used modified acrylic splints as tools of circum-mandibular fixation in 12 cases of mandibular symphysis and body fracture from May 1997 to August 1998, achieving the results of very good occlusal relationship, oral hygiene and comfort to patients.
鄭斗永,吳秉炫 全北大學校 1993 論文集 Vol.35 No.-
In this paper, it was studied the relationships between design CBR value and some index properties of the weathered grinite soil. The SPSS package was used for the analysis of soil properties and the results of data analysis of Chonbuk pavement province. It was also tried to find out the correlation between design CBR value and other soil properties and tried to make the equations by the multiregression. Through the whole study, it can be concluded as follows. 1. Generally, the correlation between CBR value and natural moisture content, sand-ravel content was represented rather highly than the other soil index properties, and it could be found that CBR value was represented rather highly in about 15 percent of natural moisture content. 2. Relationship between CBR value and sand-ravel content was showed linear correlation but that of between CBR value and natural moisture content, dry density was showed nonlinear correlation. 3. It was suggested design CBR value equation by using natural moisture content, sand-gravel content.
崩積土의 風化度가 自然斜面의 進行性 崩壞에 미치는 影響
鄭斗永,崔吉烈,李廣俊 全北大學校 1990 論文集 Vol.32 No.-
This study is an investigation of the influence of weathering degree on progressive failure slope. The clay mineral is kaolinite in failure soil layer which distributed in Granite - Schist rock zone of the Mesozic era and the thick of it is less than 3mm in heavy weathered soils, and so the failure form is friction type. The failure layer is sandy soils which have limited influence elements in sliding movement, and so the failure type is collapse type and bed rock failure type. The relationship between Ig-loss and saturation degree is an inverse proportion in characteristics of failure soils, and the saturation degree in laboratory sliding model increase about 78% to 85% and the effective porosity is deduced in 28% to 35%. The steady pore pressure(+) which produced according to rainfall time have more effective elements under the influence of precedent rainfall or concentrating precipitation on pointed day than weathering condition of failure soils, because the heavy weathered layer and rock-cracking layer is non-development state.
정지원,주병권,최우범,정성재,이남양,최두진,오명환 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1
Silicon-to-silicon anodic bonding was accomplished using lithium doped interlayer. Lithium doped interlayers were deposited on silicon substrates by electron beam evaporation, which has a fast deposition rate compared with sputtering method. Silicon-to-silicon bonding occurs in the range of temperatures from 250℃ to 300℃ with the applied voltages from 70V_(DC) to 100V_(DC). The bonding strength obtained from tensile test was about 5MPa under the condition of 80V_(DC) in 300℃. The surface morphology of lithium doped interlayer was studied with the atomic force microscopy (AFM). Finally, secondary ion mass spectroscopy (SIMS) analysis was carried out in order to investigate the role of the lithium ions in bonding mechanism.
地震波의 不規則한 走時曲線에 의한 花崗土 地盤의 動的 土質定數 推定
鄭斗永,李義明 全北大學校 1989 論文集 Vol.31 No.-
In this study, in a case of the irregular Time-Distance Curves the analysis method was studied, therefore this method was used for evaluation of dynamic soil parameter in the weathered granite soil. Then, the utilization of the concept of a delay time and the application of phantoming was to evaluate the time-distance for the refracted waves in a measuring line and the depth in the detector point. From the results it was found that how much was Poisson's ratio influenced in the relationship between Vp and E, and Vs and G, and these data related in the correlation between N-values and Vs.
CROSS-HOLE TEST에 의한 해안매립지반의 동적지반특성 평가
鄭斗永,이희명 全北大學校 1992 論文集 Vol.34 No.-
In this study, dynamic soil properties were evaluated by the result of crosshole test in marine fill ground. As a result, First, shear wave velocity were measured to 200-1000m/ sec in soil layer and 1,100-2,000m/ sec in rock layer from these crosshole test then, soil characteristics were studied by the elastic wave velocity.Second, the correlations between N-value and shear modulus were established through the regression analysis. Third, the representative design value of the soil were determined by the first approximation method of probatility analysis of the test results. These results are considered to have a good reliability.
형식 도구를 이용한 이산사건 시뮬레이션의 모델 형식화 방법론
정영식,황종선,백두권 한국경영과학회 1992 韓國經營科學會誌 Vol.17 No.3
The DEVS(Discrete EVent system Specification) formal model for discrete event simulation is a hierarchical, modular model. Because the DEVS formal model has a mathematical structure, is provides a theoretic background of discrete event simulation model. However, the DEVS formal model is difficult to understand because of its mathematical structure. Also, since the DEVS formal model is often constructed by heuristic, subjective method of model designer from the informal model, a systematic model built-in methodology does not exist. In this paper, we propose the model formalization methodology from an informal model to the DEVS formal model. For this formalization methodology, we introduce formal tools for model construction based on the DEVS from an informal model : Event Dependency Graph (EDG) for the event analysis and State Representation Graph (SRG) for the system state analysis.
知能的 컴퓨터 補助敎育을 위한 ERIC 시스템 具現에 관한 硏究
정영식,황종선,김창화,인 호,백두권 강릉대학교동해안지역연구소 1990 東海岸硏究 Vol.1 No.2
ICAI시스템은 일반적으로 전문가 모듈, 교사 모듈, 학생모델 모듈 및 인터페이스 모듈의 4가지 構成要素로 구성된다. 本 硏究에서는 4가지 모듈중에서 전문가 모듈과 교사 모듈의 機能을 遂行하도록 하기 위한 지식베이스를 構築하였다. 먼저 必要한 지식베이스들을 分類하고 지식베이스를 構築하기 위한 接近方法들을 硏究하였다. 構築된 지식베이스는 코스웨어 자체에 修正을 가하지 않고 학습전략(learning strategy)을 다양하게 하기 위해서 Domain Knowledge와 Control Knowledge로 分離하였고 Domain Knowledge는 EA모델을 통하여 코스웨어를 構築하였으며, Control Knowledge는 規則基盤(rule-based)을 利用하여 學習進行 및 評價에 필요한 知識들을 構築하였다. 이를 基礎로 하여 ERIC시스템을 設計, 具現하였다. ICAI system consists of the four modules, i.e., expert module, tutor module, student model module and interface module. This paper shows the knowledge base construction to perform the functions of expert module and tutor module of the four modules. At first we identified the essential knowledge bases in ICAI system and researched the approach for the knowledge base construction. The constructed knowledge base was divide into the domain knowledge and the control knowledge to perform the several learning strategies without the courseware modification. The domain knowledge constructed by EA model represents the courseware contents and the rule-based control knowledge represents the information necessary to perform the learning process and student estimation. Based on these methodogies, we designed and implemented ERIC system.