논문 : 한옥 생산성 향상을 위한 설계지원 방안에 관한 연구 실무 -부재가공 프로세스 분석을 중심으로-

이현우 ( Hyun Woo Lee ),정성원 ( Sung Won Jung ),전한종 ( Han Jong Jun ) 디자인융복합학회 2012 디자인융복합연구 Vol.11 No.5

기존 한옥의 계승을 위한 관련 연구가 진행되고 있으나, 한옥 보급에는 실용성을 띄지 못하고 있다. 이는 한옥 시공기술의 복잡성과 자재 생산기술 부족으로 인한 제한적 범위 내에서 공사가 진행됨에 따라 높은 공사비를 원인으로 꼽을 수 있다. 이에 따라 현재 전통 한옥이 가진 정체성을 살리고 현시대에 보급될 수 있는 신 한옥으로의 진화를 위해 부재간의 연관을 분석하고 조립하는 방식을 지식으로 구성하고 디지털 모델링을 함으로써 공사비 절감이 가능케 하는 방법 등이 연구되고 있다. 본 연구에서는 한옥 설계자를 고려한 효율적인 부재 가공 정보 지원을 목표로 한옥 부재 실무 가공 분석을 통해 경제성, 시공성을 파악하고 최적화 방안을 위한 한옥 부재 제작 CNC 시뮬레이션을 통해 효율적인 가공 프로세스의 발전 가능성을 예측하여 최적화된 부재가공 정보를 제안하고 이를 기반으로 한옥 수요자들을 위한 설계지원 방법에 대한 구체적인 방안을 제시함으로써 한옥의 생상성 향상에 기여하고자 한다. There have been a lot of studies about the Han-ok, the Korean-style house, in perspective of the inheritage of existing ones, but there are no practicality in the supply of Han-ok. The cause is considered to exist in the complexity of Han-ok and the techniques required to manufacture its components and in the relatively higher construction expenses in the process which is within restricted range. On the contrary, in order to preserve the identity of traditional Han-ok and encourage the evolution to create a new Han-ok that can be supplied to the present period, there has been studies that analyzes the connection between sub-components and assemble them into a digital model which can possibly decrease the expenses spent on construction. The research`s objective is to provide valuable information for Han-ok designers, which contains methods on manufacturing sub-components effectively. Furthermore, by analyzing the current manufacturing method`s workability and economic feasibility, the research can obtain an optimum alternative for improving Han-ok`s production. Also by using CNC simulation, the possibility of an effective production can be predicted, as well as the information that can lead to the optimum method for an efficient sub-component manufacturing and suggest a specific resolution which can also affect on the improvement of Han-ok productivity.

영지 (Ganoderma lucidum) 자실체 다당류의 분자량에 따른 생리활성

한만덕;김용현;이현수;권현정;전미애;한국일 순천향대학교 기초과학연구소 2010 순천향자연과학연구 논문집 Vol.16 No.2

The study was conducted to investigate the biological activities of an protein-bound polysaccharide (GLP) isolated from the fruit body of Ganoderma lucidum. GLP was extracted by hot water and then it was purified high (GLP-HM) and low (GLP-LM) molecular weight fraction by ethanol precipitation. Both of GLP-HM and GLP-LM at doses of 20 mg/kg in vivo had the ability to inhibit the tumor growth of Sarcoma 180 tumor-bearing mice. Inhibition rates of tumor (%) were inhibited 60.6% and 38.7% by GLP-HM and GLP-LM, respectively. In assay of anti-complementary activity in vitro, the GLP-HM were higher than that of the GLP-LM polysaccharide. And also, the GLP-HM enhanced nitric oxide production of mouse bone marrow cells. When the GLP-HM was injected intraperitoneally in tumor-bearing mouse at doses of 20 mg/kg, the concentration of TNF-α in vivo was 140.9 pg/ml in the serum, 269.6 pg/ml in sarcoma tumor mass and 879.4 pg/ml in liver. This study shows that the high molecular polysaccharide from mushroom can enhance more the bioactivities than that of the low molecular polysaccharide.

메를로 퐁티의 몸 현상학 관점을 통한 감각경험 연구: -한정미의 작품 <움큼>을 중심으로-

장서현 ( Seo Hyun Jang ),한정미 ( Jung Mi Han ) 대한무용학회 2024 대한무용학회논문집 Vol.82 No.2

Humans perceive the world through their embodied experience. The perceiving subject weaves subjective sensations and personal experiences to judge objects from a unique perspective. Rather than instant judgment, the human recognizes the object by directly engaging all senses. This study takes a phenomenological approach to the dance performance Handful(움 큼), analyzing the intrinsic meanings through the lived experiences of space, movement, and medium(clay). Merleau-Ponty's perspective reveals the body as the perceiving subject generates diverse meanings in the artwork. The work's space becomes a realm of total experience where sensations, knowledge, and language intersect. The relationships between dancers, clay, and audience demonstrate an intentionality that connects the internal and external. The clay is encouraged to form active exchanges, challenging traditional hierarchies. The dancers' movements innately seek play, imagination, and freedom, while also expressing textures of pain and loneliness. The body that pursues joy and liberation can be seen as an open embodiment with a positive worldview. Applying the phenomenological lens to dance creation and evaluation can help organize deeper layers of meaning and offer transformative experiences for the audience.

연령대별 선호 안경테와 안경원 인테리어에 대한 연구

한선희(Sun-Hee Han),김봉환(Bong-Hwan Kim),김소희(So-Hee Kim),주지윤(Ji-Yoon Joo),황슬아(Seul-Ah Hwang),박소연(So-Yeon Park),서현정(Hyun-Jung Seo),구수연(Soo-Yeon Koo) 한국안광학회 2019 한국안광학회지 Vol.24 No.2

Purpose: As the frequency of people wearing glasses has increased recently owing to the surge of different kinds of visual media, glasses are playing an important role not only in comforting the eye but also as a tool of fashion and personality. Therefore, we studied the age-wise preference pattern of the customers for the different types of glass frames and interior designs of optical shops. Methods: A questionnaire-based survey on preferred glass frames was conducted on 164 subjects (83 males and 81 females) visiting an optical shop in Ulsan. Another questionnaire-based survey on the interior designs of optical shops was conducted on 40 subjects (27 males and 13 females) by optometrists who work at 40 optical shops located at Jung-gu, Buk-gu, Nam-gu, and Dong-gu in Ulsan. Results: The survey showed that metal frames are preferred by individuals in their 10s, 20s, and 50s, whereas plastic frames are most preferred by individuals in their 30s and 40s. Among the different frame shapes, the round style is preferred by individuals in their 10s and 50s, the big frame style is preferred by individuals in their 20s and 30s, and the small frame style is preferred by individuals in their 40s. In addition, regarding the interior design of optical shops, subjects participating in the survey at Dong-gu preferred showcases, those participating at Nam-gu and Buk-gu preferred restrooms, and those participating at Jung-gu preferred refraction rooms. Conclusions: We anticipate that the sales can be augmented by improvising a better sales strategy in which the optometrists need to invest in altering the interior designs of the optical shops and pre-arranging the products according to the age-wise preference of the customers visiting the shops.

안면부에 발생한 비색소성 흑색종 2례

한예식,김보현,이정윤,안희창 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.1

Amelanotic melanoma is extremely rare and more aggressive than similarly staged pigmented lesion. It has been estimated that 2 percent of all melanoma is clinically amelanotic. The authors recently experienced 2 cases of amelanotic melanomas. An amelanotic melanoma of the left lower eyelid was widely excised, and reconstructed with the nasal mucochondral graft and Mustard cheek flap. Until 33month after the operation, no metastatic lesion was found and well being state. An amelanotic melanoma on the right buccal mucosa, in the other patients was widely excised and reconstructed with bilobed forearm flap. 10month later lung metastasis was noted.

정사각튜브의 좌굴영역에 관한 실험적 연구

韓秉基,安大植,朴鳳賢,車正一 弘益大學校 科學技術硏究所 1996 科學技術硏究論文集 Vol.7 No.1

An experimental study is presented on the local and overall buckling of the square tubes made of mild steel. A total of 150 square tubes were axially loaded in quasi static loading condition. Three kinds of specimens were chosen according to the discrepancy of thickness to width. Based on th test results, a new domain for distinction of overall and local buckling is suggested on the square tube. It is different from that of the column. A experimental equation of the overall buckling is suggested.

Ni53-Fe47자성박막의 신형전류자기 기전력효과

정한,손희영,김미양,장현숙,이장로,이용호 숙명여자대학교 자연과학연구소 1994 자연과학논문집 Vol.- No.5

진공증착방법으로 제작한 Ni53-Fe47 박막에 관한 신형전류자기 기전력효과의, 전류와 자장 방향이 만드는 각θ의존성이, 자기저항효과의 cos 2θ, Hall 1효과의 경우 sin θ임에 대하여 sin 2θ로 관측되고, 이 효과의 자장에 의존하는 전압변화율이 자기저항효과와 비교할 때 차수가 다르게 큰 것이 조사된다. 이 효과가 2 Carrier형 모델로 이해 할 수 있음을 이론적으로 확인된다. A new Galvanomagnetic electromotive force effect of Ni53-Fe47 thin films is studied. The dependence of this effect on θ, angle between the current and the magnetic field, is found to be the form of sin 2θ, in contrast with that of the magnetoresistance effect cos2θand that of the Hall effect sinθ. Property of this effect is that 1the rate of the voltage variation depending on the magnetic field is extremely large as compared with the magnetiresistance effect. It is theoretically confirmed that this effect is well understood on the basis of the two carrier types model.

Ni_53-Fe_47 자성박막의 신형전류자기 기전력효과

정한,손희영,김미양,장현숙,이장로,이용호 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.17 No.-

진공증착방법으로 제작한 Ni_53-Fe_47 박막에 관한 신형전류자기 기전력효과의 전류와 자장 방향이 만드는 각 θ 의존성이, 자기저항효과의 cos 2θ, Hall 1 효과의 경우 sin 2θ로 관측되고, 이 효과의 자장에 의존하는 전압변화율이 자기저항효과와 비교할 때 차수가 다르게 큰 것이 조사된다. 이 효과가 2 Carrier형 모델로 이해할 수 있음을 이론적으로 확인된다. A new Galvanomagnetic electromotive force effect of Ni_53-Fe_47 thin films is studied. The dependence of this effect on θ, angle between the current and the magnetic field, is found to be the form of sin 2θ, in contrast with that of the magnetoresistance effect cos 2θ and that of the Hall effect sin θ. Property of this effect is that the rate of the voltage variation depending on the magnetic field is extremely large as compared with the magnetiresistance effect. It is theoretically confirmed that this effect is well understood on the basis of the two carrier types model.

특수교육 행·재정 지원 실태 분석

정희섭,한현민,김향지 국립특수교육원 2004 연구보고서 Vol.- No.6

본 연구는 1994년 특수교육진흥법의 전문 개정 및 그에 따른 통합교육의 확산 등과 같은 급격한 사회 환경의 변화에 부응하여, 특수교육의 교육여건을 획기적으로 개선하고 그 교육의 질을 제고할 수 있도록 '지원'함을 목적으로 하는 특수교육 행정서비스가 어떠한 방향으로 개선되어야 할 것인지, 그 대안을 모색하기 위한 연구다. 특수교육 행정은 특수교육에 대한 '지원체제'(support system)이자 그 질의 관리'를 위한' '지원서비스'(support service)라는 가정 하에, 현재의 특수교육 행정서비스가 어떤 점에서 개선이 요구되는지, 그에 대한 사항들을 분석하고 이를 바탕으로 향후 특수교육 행ㆍ재정 및 특수교육정책이 나아가야 갈 방향을 제안ㆍ제시하는데 목적이 있다. 이에 본 연구에서는 정책, 법률, 조직, 교육과정, 학사ㆍ학생, 장학, 인사, 재무, 시설, 사무, 평가 등을 비롯한 교육행정의 광범위한 분야 중에서 법률관리, 조직관리, 인사관리, 재무관리 등으로 범위를 제한하여 그 현황과 함께 행정행위의 실태를 조사하기로 방향을 정하였다. 이를 위해, 특수교육 관련 주요 법률과 그 규정에 대한 분석과 해석, 관계 문헌에 대한 이론적 고찰, 교원과 교육전문직을 참여자로 하고 웹(web)을 통하여 실시한 실태조사, 주요 기관ㆍ학교의 홈페이지 검색과 내용분석 등의 방법을 사용하였다. 특수교육 관련법률의 현황은 특수교육진흥법을 중심으로 하여 관련법률의 주요 규정들을 조사하였으며 법률 규정에 따른 특수교육의 전개 과정을 제시하였다. 이에 따라 교육행정기관 내의 특수교육 행정조직, 인사행정, 행정행위 등의 현황과 문제점을 분석하였으며, 특수교육 재정의 현황과 문제점은 그 확보ㆍ분배ㆍ운용 등을 중심으로 분석하였다. 이상과 같은 내용에 대한 문헌연구와 조사연구를 통하여 얻은 결과를 종합하며 다음과 같은 결론을 도출하였다. 특수교육 법규 및 행정의 경우, 첫째, 현행 특수교육진흥법은 시대의 흐름에 맞게 개정되어야 한다. 이는 그 구성체제, 조문의 내용 및 배열 등 대폭적인 개정이 필요하기에 부분 개정보다 '전문 개정'의 방향이 되어야 한다. 최근의 추세ㆍ동향의 반영보다 '현실적 적합성'이 최우선적으로 고려되어야 한다. 둘째, 특수교육은 중앙집권제에 따라 교육인적자원부(특수교육보건과)가 주도적인 역할을 하여야 한다. 이를 위해, 교육인적자원부의 직제 개편을 통하여, 현재 교육인적자원부 내 "특수교육보건과"의 위상이 제고되어야 한다. '특수교육정책과'로의 분리 또는 "특수교육정책심의관" 등으로의 승격 등과 함께 특수교육을 '전담'(專擔)하는 '전문'(exclusive & professional responsibility) 인력이 대폭 충원되어야 한다. 셋째, 국립특수교육원(KISE: Korean Institute 'for' Special Education)은 특수교육'연구'기관, 특수교육'행정'기관, 교원'연수'기관 등의 기능을 함께 수행하고 있기에, 그 성격이 명확하지 못하다. 그 정체성(identity) 재정립이 필요하다. '국립특수교육연구원(NIKOSE: National Institute 'of' Korean Special Education)으로의 개칭과 위상의 강화 또는 한국교육개발원(KEDI: Korean Educational Development Institute)이나 한국교육과정평가원(KICE: Korean Institute 'of' Curriculum and Evaluation)과 같이 국무총리실 산하 '인문사회연구원 소속기관'으로의 격상 등이 그 대안이 될 수 있다. 넷째, 시ㆍ도교육청과 지역교육청의 특수교육담당 장학관ㆍ장학사는 특수교육전담 장학관ㆍ장학사이어야 한다. 또한, 시ㆍ도교육청은 특수교육을 전담하는 기구를 신설하여야 한다. 지역 교육청은 특수교육지원센터의 설치와 그 운영에 필요한 전문ㆍ전담인력(예, 특수교육교사, 치료 교육교사, 전문상담교사, 물리치료사, 작업치료사, 언어치료사, 사회복지사 등)의 정원과 예산을 확보할 수 있는 방안을 모색하여야 한다. 이를 위해 국가와 지방자치단체는 적극 지원하여야 한다. 다섯째, 특수학교나 일반학교를 막론하고, 단위학교의 역량을 크게 강화하여야 한다. 특수학교의 교장ㆍ교감은 대학 또는 대학원에서 특수교육을 전공한 교장ㆍ교감을 임명하여야 한다. 특수학급이 설치되어 있는 유ㆍ초ㆍ중ㆍ고등학교는 가급적 일반교육 교장ㆍ교감자격과 특수교육 교장ㆍ교감자격을 함께 가지고 있는 교장ㆍ교감자격자를 임명하는 것이 바람직하다. 여섯째, 교육인적자원부장관, 시ㆍ도교육감, 교육장, 학교장 소속의 각종 위원회(즉, '특수교육 운영위원회'와 '특수교육 협의체,' '학교운영위원회'와 '개별화교육운영위원회')의 활성화에 필요한 현실성 있는 방안을 모색하여야 한다. 앞에서 언급한 바와 같이, '특수교육지원센터'의 설치 확대와 전문인력의 배치 등이 그 대안이 될 수 있다. 일곱째, '장애인이해교육'을 일반학생만을 대상으로 할 것이 아니라, 일반학생과 그 부모, 교 장ㆍ교감ㆍ교사 등 일반ㆍ특수교육 교원, 장학사·장학관 등 (특수)교육전문직, 지역사회 주민 등, 특수교육 및 (일반)교육의 교육 당사자 모두에게 실시하여야 한다. 일과성(一過性) 행사가 아닌, 지속성 있는 교육이 필요하다. 장애학생을 자녀로 둔 부모에 대한 교육과 훈련(parent education & training) 및 일반교육과 특수교육 가릴 것 없이 모든 교원과 교육전문직을 대상으로 그 교육적 역량을 강화(empowerment)시킬 수 있는 직원개발(staff development)이 이루어져야 한다. 특수교육 재정의 경우, 첫째, 특수교육재정의 확보를 위한 다각도의 지원이 있어야 한다. 특수 교육재정확보를 위해서는 교육재정 전반의 확충이 있어야 하는 것은 물론, 아울러 교육부 예산에서 책정되는 특수교육비의 안정적인 화보를 위해 당해 년도의 의무교육비의 일정 비율을 특수교육비로 하는 재원 확보 방안이 적극적으로 고려되어야 한다. 둘째, 특수교육재정의 분배 방식에 있어서 개혁이 필요하다. 특수교육재정의 분배 방식이 교육기회의 기본적 보장이라는 학급당 균등 배분 방식에서 벗어나 아동의 요구수준, 장애영역과 장애 정도에 따라 장애아동의 잠재력을 최대로 개발 할 수 있는 차원에서 분배 방식이 모색되어야 한다. 셋째, 우리나라 일선 교육기관에서의 특수교육재정 운용은 대체로 만족한 수준을 보이나 전반적 개선 사항이 요구되고 있다. 특수교육이 이루어지는 최일선 교육기관인 학교와 학급에서의 재정 운용 불만족이 다양하게 표출되고 있으며, 특히 국ㆍ공립학교보다는 사립학교에서 재정 운용에 대한 불만이 더 큰 것으로 나타나 이에 대한 효율성ㆍ책무성 제고가 있어야 한다. 요컨대, 이상과 같이 특수교육의 질적 개선과 그 관리를 위해서는, 교육인적자원부, 시ㆍ도교육청, 지역교육청, 단위학교, 교원과 교육전문직, 학생과 학부모 등 교육 공동체 당사자 모두가 상호 협력하고 지원하는 체제의 마련이 시급하다. 이와 같이 특수교육 분야는 향후 해결하여야 하는 많은 과제를 안고 있다. 이러한 사항들을 특수교육행정과 후속연구를 위한 제언으로 제시 하였다. The present study is an attempt to find solutions to a variety of problems recently occurring in administrational services for special education due to Special Education Promotion Law revised in 1994, the lasting expansion of integrated education, and the rapid changes in social environments. Specifically, assuming that special educational administration should be the support system and service, the purposes of the study are to investigate the present conditions of the existing special educational administration, to analyze its problems, and finally to suggest and/or present the directions toward improvement of special education policies, including administrational and financial policies in the future. The study limited its scope only to include the management of laws and regulations, organizations, personnel, and finance, though educational administration includes policies, laws, organization, curriculum, students and school affairs, supervision, personnels, finance, facilities and equipments, office affairs, and evaluation. Then, the study examined the contents of the above areas and investigated the actual situations of the administrational activities. The methodologies used in the study included the analytic and interpretative approach to special education laws and its articles, the theoretical discussion on related literature, the Web-based survey to teachers and educational staffs, the search and analysis of homepages of major related institutes and schools, and so on. The investigations of the status of special education-related laws was primarily done through regulations analysis of the Special Education Promotion law of 1997 (including Presidential Decrees and Enforcement Decrees of the Minister) and resulted in Korean special educational procedures regulated by the laws. Then, the present status-quo of administrational organizations, personnel administration, and administrational activities for the more efficient special education within the educational administrational institutes and the educational institutes and their problems were analyzed based on the legal regulations related to special education. In the study, the educational administrational institutes include the Ministry of Education and Human Resources Development (MOE), Metropolitan ("Si") Office of Education (SOE), Provincial("Do") Office of Education (POE), and District Office of Education (DOE). And the educational institutes refers to special schools and special dasses. The analysis on the present condition and its problems of special educational finance focused on the guaranteeing, distributing and practically using of its finances. The conclusions drawn from the results obtained through literature review and survey on the above contents are as follows. First, the Special Education Promotion Law (SELF) of 1997 must be revised with the change of the times. Because the drastic changes such as the organizing system, the contents of many articles and their arrangement, and so on are required, the direction for revision must be all-out revising of full articles, not revising some articles. Above of all, the revision of articles in the law must give priorities to the relevance with actual educational conditions in Korea as well as recent trends in special education field. Second, the Special Education and School Health Division of the MOE must strongly promote special education policies and related administration affairs. To accomplish these tasks, the status of th Division in the MOE must be lifted. The alternatives indude the new establishment of the Special Education Policy Division through the separation of the Division's affairs and the its upgrade into "Special Education Policy Officer." Also, the more "Educational Specialists" and "Educational Researchers" should be recruited and be imposed the professional and exclusive responsibility to planning special educational policies. Third, the identity of the Korea Institute for Special Education (KISE) must be reestablished through changing of its present name into, for example, the National Institute of Korean Special Education (NIKOSE). In another hands, the Korea Research Council for Humanities and Social Sciences (KRCHS) under the Office of the Prime Minister needs to incorporate KISE, together with the existing affiliated organizations, that is Korean Educational Development Institute (KEDI) and Korean Institute of Curriculum and Evaluation (KICE). Fourth, superviser-in general and superviser who has majored in special education should be in charge of special education in SOE, POE, and DOS. Also, SOE and POE must have a new organization that takes charge of special education exclusively and professionally. DOE should found and administer actively "Special Education Support Center" in addition to place in the center various and professional service providers (for example, the therapeutic and the special education teacher, the teacher majors in counseling, the physical and the occupational therapist, the speech-language therapist, the social worker, and so on) necessary to administer the center substantially and efficiently. The central, metropolitan and provincial, and local government should provide financial assistances necessary to administer the center and provide various services. Fifth, in the school level, all schools across the country need to make efforts for developing their capacity to effectively teach all students including children with disabilities and special educational needs. Thus, it is most desirable that individual who has graduated the department of special education in the universities and/or majored in special education in graduate school (of education) as well as has met the criteria of certification for principal is nominated as the principal of the school with special class as possible and of the special school, in particular. Sixth, the plan with practical effect on activating all kinds of committees under the Deputy Prime Minister of MOE, the superintendent, and the school principal, say, the Committee on Special Education, the School Steering Committee, and the Committee on Individualized Education should presented. As mentioned above, to activate "Special Education Support Center" can be an alternative. Seventh, the education for general students to understand disabilities and peers with disabilities needs to expand the scope of the target population to their parents, the principals and teachers of schools, especially of general schools and the supervisers of the DOE, further to all members of the community. This education should be administered continuously, not temporary events. For the parents and families with children with disabilities, parent education and training need to be implemented, too. In addition, the various and practical sorts of staff development program needs to be developed and to be administered to empowerment all teachers and educational staffs. Eighth, many-sided supports must be given to secure finance of special education. There is no doubt that the overall expansion of educational finance will need in order to secure finance of special education. In addition the resources security plan which is given special education expenses an invariable ratio in compulsory education of the year must actively be considered to stably secure special education expenses appropriated in budget of the Ministry of Education. Ninth, the reformation needs in the sharing form of special education finance. The sharing form of special education finance must get out of the equal sharing form per class that is the basic security of education opportunity and must be searched for developing the latent ability of the disabled students at their maximum according to the extent of impediment and the level of the need of the students. Finally, the financial operation of special education is generally satisfactory level in the first-line educational institutions of the nation but, the general matters for improvement is required. Dissatisfaction of financial operation is expressed diversely in schools and classes which are the first-line educational institutions for special education. Especially the private schools are more dissatisfied with financial operation than the national schools and the public schools. Based on this, the efficiency and responsibility must be promoted. In sum, to improve and to efficiently manage the quality of special education in Korea, it is most important that the educational community itself, including the MOE, SOE and POE, DOE, school, teachers and educational staffs, students and their parents, should be systemized to cooperate and support each other. As such, the present special education confronts a number of problems and tasks that should be solved in the future. The implications for improving special educational administration & finance practices and for further studies were presented, too.

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한명철,김정관,허승현,김성렬,김찬봉 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

The acoustic emission (AE) sensor has been widely used for monitoring the machining states or tool abrasion, etc. This paper presents the relation between machining time and states such as tool abrasion for ceramic machining processes, which can be applicable to develop the dentistry machining center. A commercial PZT-type of AE sensor was used for experiments, and the aquisition data was analyzed in the AE signal strength versus machining time. The results show that it is possible to estimate the tool life and the ceramic machining state. In the future, additional experiments for various machining conditions such as depth of cut and feed rate are strongly necessary so as to design an effective monitoring system for the ceramic machining processes through detecting the AE signal.