The ANN Design of a DC / AC Servo-Motor Driving Circuit

홍선학 瑞逸專門大學 2000 論文集 Vol.18 No.-

經路分析을 通한 健康信念模型에 關한 硏究

洪大容,최학의,鄭善太 慶尙大學校 1985 論文集 Vol.24 No.1

A theoretical framework of "Health Belief Model" were used to examine the factors which are assumed to impact upon health belief and preventive action. The survey was carried out from Oct. 1 to 30, 1984 with a representative sample of middle and high school students (N=1.868) by structured questionaire. The results of zero-order correlation analysis, multiple regression analysis and path analysis were as follows : 1) The simple correlation analysis reveals that the variables affecting the preventive action are school grade(p<0.05), sex(p<0.05), area (p, 0.05), parent's education level (p<0.05). The results indicated that the higher school grade is, the more the preventive action is and urban area shows higher preventive action than rural area. Girl students showed higher preventive action than boy students. Parent's education level was proved to be effective on the preventive action, too. But pre-recommendation of preventive action showed non significant relationship with the preventive action, therefore it was not proved that the cue to action variables are important to explain health behavior. 2) According to the results obtained by multiple regression analysis, the threat about disease is affected by sex (β=0.1913), area (β=-0.0801), economic level (β=-0.0480) and academic a chievement (β=-0.0648) at very significant level (p<0.001). The perceived benefits of preventive action, considered to be as positive health belief variable turns out to be affected by parent's education level (β=0.0062), economic level (β=0.0661), academic achievement (f=-0.0330) and the knowledge about disease (β=0.1075) at very significant level (p<0.001). In this results, we can find the difference between positive health belief and negative health belief. On the contrary to the threat about disease, education was doing a very important role on the perceived benefits of preventive action. 3) The factors affecting the Preventive action were Proved to be school grade (β=-0.1138), sex (β=-0.0839), area (β=0.0866), economic level (β=-0.0438), the threat about disease (β=0.0439) and the Perceived benefits of preventive action (β=0.0424) (p<0.001). In point, we can find the preventive action is affected more by the threat about disease than by the perceived benefits of preventive action. Therefore it can be stressed that the promotion of the health behavioral change can be achieved effectively by negative health belief than by positive health belief in a city or rural area except metropolitan city. So we can say the different approaching method is needed according to the circumstances of each area to attain the desired end. 4) The path analysis shows the same results of the multiple regression analysis. Among the variables (individual characteristic variables, cue to action variable, health belief variables), only sex and health belief variables are affected more by causal effect than by non-causal effect. And the hypothesis, the health behavior are affected by health belief, is proved to be ture.

쇄골 중간부 골절후 불유합 및 지연 유합의 원인

윤정로,심재익,김택선,이성종,김영배,김학준,안국환,장재영,홍명표 대한골절학회 2002 대한골절학회지 Vol.15 No.4

쇄골 중간 1/3 부위의 골절은 치료 결과가 양호하여 보존적 치료가 원칙적으로 받아 들어지고 잇으며 불유합에 대한 빈도도 낮은 것으로 되어 있다. 그러나 최근 전위 및 단축의 정도가 심할 경우 높은 불유합의 결과와 불량한 임상 결과를 보고하고 있어 이런 예에 대해선 수술적 치료를 권장하고 있다. 저자들은 단축 및 전위의 정도와 불유합의 연관성을 알아보고자 하였다. 연구 대상 및 방법 : 1993년 2월부터 2002년 1월까지 본원에 내원 했던 성인 중간부 쇄골 골절 환자 194명 중 완전 전위를 보인 78례를 조사하여 이중 63례를 대상으로 분석하여 후 향적 연구를 시행하였다. 4개월 추시 후에도 방사성 사진상 유합 소견이 관찰되지 않으면 불유합의 유의성을 알아보고자 하였다. 결 과 : 63례 중 불유합 및 지연 유합을 소견을 보인 환자는 15(23%)례였다. 골유합을 보인 48례의 단축은 평균 8.6㎜(2㎜-17㎜)였고, 전위는 평균 9.7㎜(2-22㎜)였다 .불유합 및 지연 유합을 보였던 15례에서 단축은 평균 14.5㎜(3㎜-37㎜), 전위는 평균 17.3㎜(4-25㎜)였다. 18㎜이상 단축이 있었던 경우 불유합의 발생과는 통계학적으로 유의성을 나타내었고(Fisher's exact test, p<0.01), Chi-square test상 16㎜ 이상의 전위를 보였던 경우 불유합 발생과 통계학적으로 의미가 있었다(p<0.01). 결 론 : 쇄골 골절 특히 중간 1/3의 골절은 비교적 보존적 치료에 결과가 좋은 것으로 되어 있으나, 전위 및 단축이 심한 경우 불유합에 대한 가능성이 높이 때문에 보다 경과 관찰시 유합의 진행이 없으면 적극적인 치료를 고려해야한다. Purpose : Because the prognosis of the mid 1.3 clavicle fracture is good, the conservative treatment with a figure of 8 bandage is the gold standard and the nonunions are rare. However, recently surgical treatment is recommended when the shortening and displacement is severe because of the high nonunion rate and the poor clinical result. This study was undertaken to evaluate that the shortening and displacement at fracture site are associated with the development of nonunion. Materials and Methods : We analysed the 194 fractures of mid 1/3 clavicle in adults which had been treated conservatively from February 1993 to January 2002 and did the retrospective study. Of these, 78 cases were originally in the middle third of the clavicle and had been completely displaced. We reviewed 63 of these cases. The shortening and displacement at the fracture site was measured on the initial roentgenogram. And the analysis of the patients' chart was done for another predisposing nonunion factors. Nonunion and delayed union are considered to be present when there has been little or no progression of clinical or radiographic healing at a minimum of 4 months after injury. Results : 15 of the 63 cases had developed nonunion.. The average 8.6㎜(2㎜-17㎜) shortening and average 9.7㎜(2-22㎜) in the union patients. The average 14.5㎜(3㎜-37㎜) shortening and average 17.3㎜(4-25㎜) in the nonunion patients. We found that initial shortening ≥18㎜(Fisher's exact test, p<0.01) and initial displacement ≥ 16㎜(Chi-square test. p<0.01)at the fracture site were significantly associated with the development of nonunion. Conclusion : The conservative treatment with figure-80-bandage is the gold standard in the clavicle middle one third fracture. However, the nonunion is commonly occurs in the cases of more of severely shortened and displaced fractures. If there are no signs of callus formation and the patient complains of pain after several week, osteosynthesis should be considered.

COS MEMS System Design with Embedded Technology

Hong, Seon Hack,Lee, Seong June,Park, Hyo Jun Korea Electric Power Corporation 2020 KEPCO Journal on electric power and energy Vol.6 No.4

In this paper, we designed the COS MEMS system for sensing the falling detection and explosive noise of fuse link in COS (Cut Out Switch) installing on the power distribution. This system analyzed the failure characteristics and an instantaneous breakdown of power distribution. Therefore, our system strengths the industrial competence and guaranties the stable power supply. In this paper, we applied BLE (Bluetooth Low Energy) technology which is suitable protocol for low data rate, low power consumption and low-cost sensor applications. We experimented with LSM6DSOX which is system-in-module featuring 3 axis digital accelerometer and gyroscope boosting in high-performance mode and enabling always-on low-power features for an optimal motion for the COS fuse holder. Also, we used the MP34DT05-A for gathering an ultra-compact, low power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface. The proposed COS MEMS system is developed based on nRF52 SoC (System on Chip), and contained a 3-axis digital accelerometer, a digital microphone, and a SD card. In this paper of experiment steps, we analyzed the performance of COS MEMS system with gathering the accelerometer raw data and the PDM (Pulse Data Modulation) data of MEMS microphone for broadcasting the failure of COS status.

Creative Engineering Robot Design with UML

Hong Seon Hack(홍선학) 한국통신학회 2008 韓國通信學會論文誌 Vol.33 No.10D

본 논문에서는 통일 모델링 언어(UML)기법을 사용하여 창의공학에서 활용할 수 있는 로봇 설계기법을 제시한다. 최근 IT 분야의 교육 목표를 창의적 사고방식을 키우기 위한 시대적인 요구에 맞추어, 본 연구를 통하여 창의공학용 로봇 활용을 GUI 프로그램과 접목시킬 수 있도록 UML기반의 객체지향 프로그래밍(OOP)개념을 적용한다. 창의공학 분야의 프로그램에 사용되는 Java 또는 C#과 같은 객체지향 기법은 시스템 전체를 유연하게 설계하고, 강인하며 유지 관리에서 효율적이며, 여기서 얻어진 결과를 창의 로봇 분야의 시스템 개발도구로 활용할 수있도록 하였다. 또한 본 논문에서는 GUI 환경에서 UML기반의 창의공학용 로봇 설계기법을 실험을 통하여 구현하였다. This paper proposes the techniques and theory works of the creative engineering robot with UML(Unified Modeling Language) base. Now, with the IT development of school curriculum has been interested, we apply the OOP(Object-Oriented Programing) concept of UML to the GUI program which used to creative engineering robot fields. The object-oriented analysis and design skills are essential for the creation of well-designed, robust, and maintainable software such as Java or C# with creative engineering robot and are especially applicable to the system development tools of creative engineering robot. This paper experiments the design method of creative robot with UML under GUI programming environments.

Phylogenetic Relationships of the Polyporaceae Based on Gene Sequences of Nuclear Small Subunit Ribosomal RNAs

(Seon Young Kim),(Hack Sung Jung) 한국균학회 2001 Mycobiology Vol.29 No.2

N/A N/A

Phylogenetic Classification of Antrodia and Related Genera Based on Ribosomal RNA Internal Transcribed Spacer Sequences

(Seon Young Kim),(So Yeon Park),(Hack Sung Jung) 한국미생물생명공학회 2001 Journal of microbiology and biotechnology Vol.11 No.3

N/A N/A

Phylogenetic Relationships of the Aphyllophorales Inferred from Sequence analysis of Nuclear Small Subunit Ribosomal DNA

Kim, Seon-Young,Jung, Hack-Sung The Microbiological Society of Korea 2000 The journal of microbiology Vol.38 No.3

Phylogenetic classification of the Aphyllophorales was conducted based on the analysis of nuclear small subunit ribosomal RNA (nuc SSU rDNA) sequence. Based on phylogenetic groupings and taxonomic characters, 16 families were recognized and discussed. Although many of the characters had more or less homoplasies, miroscopic characters such ad the mitic system and clamp, spore amyloidity and rot type appeared to be important in the classification of the Aphyllophorales. Phylogenetically significant families were newly defined to improve the classification of the order Aphyllophorales.

Thermal and Organic Chemical Stress Responsive Genes in Soft Coral, Scleronephthya gracillimum

Woo, Seon-Ock,Yum, Seung-Shic,Kim, Yong-Tae,Suh, Seung-Jik,Kim, Hack-Cheul,Lee, Jong-Rak,Kim, Sa-Heung,Lee, Taek-Kyun The Korean Society of Toxicogenomics and Toxicopro 2006 Molecular & cellular toxicology Vol.2 No.3

The extensive isolation of genes responsive to stressful conditions from a soft coral Scleronephthya gracillimum was described. Soft coral colonies were exposed to thermal and chemical stressors to induce the expression of stress related genes. Differentially expressed genes by natural or anthropogenic stressors were identified by construction of standard and stress exposed-paired subtractive cDNA library. Thirty-two and thirty-seven kinds of candidate genes were identified from thermal or benzo[a]pyrene stress exposed group, respectively, which are associated with cell cycle, cell signaling, transcription, translation, protein metabolism, and other cellular functions. The expected function of each gene was described. The isolated and identified differentially expressed genes have a great potential to identify environmental stressors in global environmental changes and could act as molecular biomarkers for biological responses against environmental changes. Finally, it may open a new paradigm on soft coral health assessment.

여수세계박람회 참가 국가이미지의 방문객 특성에 따른 차이와 이벤트 만족도와의 영향관계

임종학 ( Jong Hack Lim ),손선미 ( Seon M Son ) 한국이벤트컨벤션학회 2013 이벤트 컨벤션 연구 Vol.9 No.2

The study on differences among event visitors`` characteristics remains to be one of the least researched areas in event. This article explores visitors differences of national image regarding the 2012 Yeosu Expo as recorded by responses to a visitor survey. A total of 346 useful responses were collected and the data were analysed by SPSS program for factor analysis, ANOVA and regression analysis. The result of analysis revealed that significant and meaningful differences of national images were found visitor characteristics. In addition distinctive relation were found in the national images and the degree of Expo satisfaction. This study is expected to be useful in selecting the target market in line with the international events and in prepating a mutual marketing collaboration plan between event and nation.