• Title/Summary/Keyword: Artificial Stone

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A Review on Enclosing Groves of the Village which Standing Stone of Penis Form is existing in Sunchang Region - Centered on Enclosing Groves of Palwang and Taechon Village - (순창지역의 남근형(男根形) 입석(立石)이 세워진 마을의 비보숲에 관한 고찰 - 팔왕(八旺), 태촌(台村) 마을의 비보숲을 중심으로-)

  • Park, Jae-Chul;Rho, Jae-Hyu
    • Journal of Korean Society of Rural Planning
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    • v.7 no.2 s.14
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    • pp.33-40
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    • 2001
  • The purpose of this paper is on identifying spatial structure of Palwang and Taechon village and dealing with restoration direction of village spatial structure and village groves. The results are as follows. It was identified that the standing stone for penis form is not standing stone for praying son but complementing that for enforcing enclosed function of enclosing village groves. It was considered that village entrance and entrance road, village grove of Taechon village must be restored for being identified as standing stone of penis form of spatial structure of village. It was considered that the above is essential to connect with ecotourism of Sunchang-gun region. It was identified that Palwang village grove is very good in conservation state, but Taechon village grove has been destructed mostly by various development. It was identified that Palwang village grove is high in species diversity and in scare value as mixed forest, landscape value. The dominent tree of Palwang village was Pinus densiflora and that of Taechon was Salix glandulosa. Salix glandulosa was used pavilion tree, main tree in both village. It was identified that Carpinus tschonoskii is showing the most rapid growth in tree height and Salix glandulosa is showing the most rapid growth in tree breadth diameter of all kind of tree. It was considered that Pinus densiflora was planted first of all and deciduous trees were complemented later. It was considered that simple forest of Pinus densiflora has been changed into mixed forest by artificial affect in the long term. It was considered that Salix glandulosa in Palwang village grove must be indicated as legal protection tree according to present criteria of protection tree selection in Korea. And it is considered desirable that standing stone of penis form and village grove in Palwang village must be indicated unitedly as cultural conservation element.

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Bloating Mechanism of Lightweight Aggregate with the Size

  • Lee, Ki Gang
    • Journal of the Korean Ceramic Society
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    • v.53 no.2
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    • pp.241-245
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    • 2016
  • The purpose of this study was to investigate the bloating mechanism of artificial lightweight aggregates with different sizes (ESA, effective surface area). Aggregates were produced using hard clay, stone sludge, and a bloating agent in order to observe the effect of the gradation of the artificial lightweight aggregates. Kerosene and amorphous carbon were used as bloating agent. The particle size of the produced aggregate ranged from 3 mm to 9 mm. With regard to the amount of bloating agent to be used, 2 ~ 6 parts by weight were used. The specific gravity, absorption rate, and the type of aggregates produced by rapid sintering at $1075{\sim}1200^{\circ}C$ were determined. Microstructures were observed. When ESA had a value of 1 or below, kerosene, which has a high burning rate, was found to be advantageous for use as a bloating agent. When ESA had a value of 1 or above, carbon, which has a relatively low burning rate was found to be an advantageous bloating agent. It is thought that kerosene is more advantageous, as ESA decreases, for the production of aggregates having low water absorption rate.

Web Application Implementation Using Flask Model Serving : Urinary Stone Artificial Intelligence Application (Flask 의 모델 서빙을 이용한 웹 어플리케이션 구현 : Urinary Stone 인공지능 응용)

  • Lee, Chung-Sub;Lim, Dong-Wook;No, Si-Hyeong;Kim, Ji-Eon;Yu, Yeong-Ju;Kim, Tae-Hoon;Park, Sung Bin;Yoon, Kwon-Ha;Jeong, Chang-Won
    • Proceedings of the Korea Information Processing Society Conference
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    • 2021.05a
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    • pp.454-456
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    • 2021
  • 본 논문은 웹의 발달로 인하여 의료 서비스들이 기존의 Client-Server 방식의 제품에서 Web 방식의 제품으로 변경되고 있는 현대 흐름에서 인공지능 어플리케이션 또한 Web 으로 서비스 하기 위한 방법과 구현된 요로결석 AI 어플리케이션에 대해 기술한다. 이를 구현하기 위해 Python 기반의 Flask 라는 마이크로 웹 프레임워크를 사용하여 DICOM 핸들링, Pre-Processing, Mask 를 생성하고 Predict 결과를 Model Serving 을 통하여 Urinary Stone Segmentation Model 이 서비스되는 인공지능 웹 어플리케이션 동작 방식과 수행 결과를 보인다.

A Program for University Student's IT Leadership Renovation

  • Park, Jong-Jin
    • International Journal of Internet, Broadcasting and Communication
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    • v.12 no.1
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    • pp.1-6
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    • 2020
  • In this paper, we propose a new program for university student's IT leadership renovation. Automation and Artificial Intelligence(AI) are changing the nature of work. According to MGI report, they will change the skills needed in the workforce. Leadership is one of the skills needed more of in the future at workplace including IT industry. Leadership could be defined as having 5 level leadership. According to the 5 level leadership, a program was formulated to renovate university student's self-leadership, teamwork, team leadership and finally global leadership. We named the program as Stepping-Stone Platform for Student's IT Leadership Renovation(SSP-SLR). Each level of four stepping stones consists of one semester. Student can raise their leadership skills by the program step by step. Various instruction learning methodologies are adopted to the program, including Flipped learning which has been proved effective in many ways in the field of education recently.

The High-Strengthening of Concrete with Admixture - On the Artificial Lightweight Aggregate Concrete- (혼화재에 의한 콘크리트의 고강도화에 관한 실험 연구(II) -인공경량골재 콘크리트를 대상으로-)

  • 김화중;김태섭;이용철;박정민
    • Proceedings of the Korea Concrete Institute Conference
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    • 1993.10a
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    • pp.118-123
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    • 1993
  • The purpose of this study is to put to practical use the economical high-strength lightweight concrete manufactured by domestic materials, through the analysis on the properties of lightweight concrete with the natural zeolite and mud stone abundant in domestic and compare them with those with silica fume. As a result, it was possible to gain proper workability in the lightweight concrete with admixtures through using the superplasticizer. the optimum replacement rate of zeolite and mud stone powder is respectively 5~10%, 10~15% on unit-cement amount. The strength development rate for plain concrete is 27%, 18% at optimum replacement rate.

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A Study on Ultrasonic Image Diagnosis Methods of Tooth Defect with Phased-Array Techniques (위상배열기법을 이용한 치아결함 초음파이미지 진단기술개발)

  • Oh, Yun-Jung;Hwang, In-Nam;Park, Su-Jung;Im, Kwang-Hee;Cho, Hyun-Joon;Cho, Young-Tae
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.18 no.6
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    • pp.604-613
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    • 2009
  • Recently, researches to develop phased array ultrasonic examination techniques are proceeded to diagnose dental caries and the status of surgical operation of dental implant. Sound field analysis of phased array ultrasonic transducers were carried out in order to characterizing the ultrasonic phased array beams. The sound field of ultrasonic radiation was calculated for the sample called "gypsum-improved stone" with the similar characteristics of dental materials. Industrial phased array ultrasonic devices were utilized for the insptriion of the artificial flaws machined in the gypsum-improved stone. Dental implants were made at the pig jaw bone and defect images were confirmed for the dental implants.

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Properties of Non-cement Artificial Stone Utilizing the Waste Porcelain and Waste Glass (폐유리 및 폐자기를 활용한 무시멘트계 인조석재의 특성)

  • Kim, Tae-Hyun;Lee, Seung-Ho;Lee, Sang-Soo;Song, Ha-Young
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.4 no.2
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    • pp.136-142
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    • 2016
  • As the rapid industrialization and modernization progress of the world it is becoming a fast-paced environment pollution. And, dust or environment pollution to solve reckless diggings of natural aggregate cause a serious problem. This study was used a Blast Furnace Slag and Combined Heat and Power Plant of Fly Ash as a cement substitute to reduce $CO_2$ emissions during cement production, this study intend to suggest it's result as basic data 'Properties of Artificial Stone interior or exterior materials type utilizing industrial by-product and waste resource' utilizing Waste Porcelain and Waste Glass. As a result, it was high strength that matrix added the Combined Heat and Power Plant of Fly Ash of addition ratio 40%. Also, pre-experiment was conduct as mixing ratio of waste glass, waste porcelain on the basis of the preceding experiment, proper mixing ratio was judged that proper of waste glass, waste porcelain was mixing ratio 60, 70 (%) of appeared surface aggregate ratio more than 45%.

A Study of Stone Cultural Heritage on Filler Status and Clinical Trials of Conservation Treatment in Cracks - Focusing on the Change in Surface of the Filler by Mixing the Talc - (석조문화재 균열부 보존처리 충전제의 현황과 임상실험 고찰 - 활석을 혼합 한 충전제의 표면변화를 중심으로 -)

  • Lee, Tae Jong;Oh, Hyeon Jung;Kim, Sa Dug;Lee, Jang Jon
    • Journal of Conservation Science
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    • v.30 no.4
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    • pp.383-393
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    • 2014
  • It is used for the epoxy resin, a mixture of various fillers conservation of cracks of the stone cultural heritage. Such as conservation treatment is need to for long-term conservation. However, field research and experiments on the conservation treatment results when included 54 cases of talc filler was confirmed that the damage, such as discoloration and cracks. The field research is talc was used to determine whether the reports and conservator interviews conducted, microscopy, ICP analysis of the samples collected from the field site. Experiments is color difference measurement and Ultrasonic measurement were arried out, and artificial weathering tests to investigate the effect of talc. As a result, lower the property of matter of the samples containing the talc. Therefore, we propose that the selection process is not allowed to use talc as the filler of stone powder filler cracks is conservation treatment.

A Study on the Original Form and Authenticity of the Stone Cultural Heritage according to the Conservation Treatment - With Focus on the Stupa of State Preceptor Jigwang from Wonju Beopcheonsa Temple to the Conservation Treatment - (석조문화재 보존처리에 따른 원형보존과 진정성 고찰 - 원주 법천사지 지광국사탑 보존처리 사례를 중심으로 -)

  • Lee, Tae Jong;Cho, Ha Jin;Park, Hee Jeong;Kang, San Ha
    • Journal of Conservation Science
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    • v.35 no.3
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    • pp.259-268
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    • 2019
  • Stone cultural heritage will either be damaged by composite damage or will lose its original historical authenticity starting with the moment it is created. Various artificial interventions to restore them to their original state have been described, centering on the conservation treatment case of the Stupa of State Preceptor Jigwang from the Wonju Beopcheonsa Temple Site. Restoration of the Jigwang stone pagoda was carried out after securing all scientific and technological means for the research and protection of the cultural heritage in question. Since its restoration was promoted to retain its aesthetic and historical value and was based on a careful understanding of the original materials and prototypes, extensive restoration was sought, which contributed to the restoration of the original form, resulting in both preservation and authenticity.

Characterization of Artificial Aggregates Fabricated by Using Various Forming Methods (다양한 성형법으로 제조된 인공 골재의 특성)

  • Kang, Seung-Gu
    • Journal of the Korean Ceramic Society
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    • v.46 no.1
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    • pp.94-101
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    • 2009
  • The physical properties of artificial aggregates made from clay and inorganic wastes with poor plasticity depends largely on forming method. The artificial aggregates composing of coal fly ash, stone sludge and clay were fabricated using 4 different forming methods and those physical properties were comparatively analyzed. The surface of aggregates made through the extrusion forming process was dense and smooth but was rough for the aggregates obtained by crushing a tile-shaped green body. The aggregates made by pelletizing process had a weak green strength and bumpy surface. The shell generated at surface during a high temperature sintering process induced the most aggregates to be bloated due to a dense shell. But the aggregates made through pelletizing process with dense surface layer showed no significant change in bulk density with sintering temperatures. The water absorption of aggregates decreased with sintering temperature, and that of pelletized specimen was standing $1.8{\sim}2.2$ times higher than that of made by other forming methods. It is concluded that the aggregates having various properties could be fabricated from one batch by using different forming methods.