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기계적 마모로 인한 교합 고경 상실 환자의 전악 수복

  • O, Nam-Sik;Kim, Hyo-Jeong;Ryu, Hyo-Jin;Kim, Il-Gyu;Choe, Jin-Ho
    • The Journal of the Korean dental association
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    • v.41 no.1 s.404
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    • pp.48-53
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    • 2003
  • The purpose of this study is to report a clinical case of a patient whose vertical dimension of occlusion was lost. There are many reasons for the loss of vertical dimension and one of those can be a tooth wear problem. Thus in this article we will review shortly types of tooth wear: attrition, abrasion, and erosior. And layour the basic philosophy and principles in regaining the esthetics and function of a patient's oral condition with a history of psychological wear, through full mouth restorations.

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Stratification related to Heat Flux in Deukryang Bay during Summer (여름철 득량만의 열속과 관련한 성층)

  • 최용규;홍성근
    • Journal of Environmental Science International
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    • v.6 no.6
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    • pp.579-588
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    • 1997
  • In order to see the stratification related to the heat flux In Deukryang Bay, the oceanographic data on July 12, 1994 and the meteorological data of Kohung and Kwangju meteorological stations were analysed. The temperature durerences between the sea surface and the near bottom were 1~3 ton spring tide (July 12, 1994) In Deukryang Bay. The temperature anomalies were high about 3t during summer In 1994. These mean that the non mixing was not effective In destroying the stratification due to the sea surface heating by the solar radition, even though it was on spring tide. The maximum solar radiation was about 600 ly/day, which was the value of the same date of oceanographic observation. The sensible and the latent heat flux which are 0~100 ly/day were not so varied during summer. The absorbed heat flux through the sea surface was mostly lost by the back radiation. which ranges are about 0~-400 ly/day. The dimensionless mixing parameter related to the buoyancy flux was 5~150$\times$$10^{-5}$. The efficiency of tidal mixing to destroy the stratecation was 0.4~0.6%.

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MAXILLARY SINUS ELEVATION PROCEDURES: A Report of Six Cases (상악동거상술 및 임플란트매식에 의한 상악 구치부 수복에 관한 임상적 연구)

  • Lee, Dong-Han
    • The Journal of Korean Academy of Prosthodontics
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    • v.33 no.2
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    • pp.300-316
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    • 1995
  • Methods for restoring the posterior portion of the maxilla with delayed and simultaneous sinus lift, composite graft and placement of TPS cylinder and screw type implants are presented. Sinus grafting is needed because of minimal remaining alveolar bone and supporting posterior maxillary portion, The composite graft material uses a combination of autogeneous bone from tuberosity, dimeneralized freeze dried allogenic bone and hydroxylapatite with saline. Since 1991, feb, 1 sinus graft with delayed implantation of 3 cylinder implants and 5 sinus grafts with simultaneous placement of 4HA coated screw typed, 8 TPS cylinder typed implants have been performed for 6 patients. None of the 15 restored implants have been lost, Temporization of prosthesis was done about 2-5 months before final prosthetic work, None of them shows any severe complication.

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General anesthesia in the management of early childhood caries: an overview

  • Oubenyahya, Hanan;Bouhabba, Najib
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.19 no.6
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    • pp.313-322
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    • 2019
  • Early childhood caries is a global healthcare concern in developing and industrialized countries. If left untreated, it leads to immediate and long-term complications that affect the well-being and quality of life of concerned families. Therefore, many preventive and treatment approaches are available to the healthcare provider to curb this virulent form of caries. After behavioral interventions, general anesthesia is used in specific settings when a young patient presents with extensive teeth damage and exhibits a lack of cooperation that is incompatible with conventional dental office care. However, without proper follow-up, any positive results might be lost over time.

Variation of Viability and Infectivity of Cryptosporidium Exposed to River Environments During Winter (동절기 자연수계 환경에 노출된 크립토스포리디움의 활성 및 감염성 변화)

  • Park, Sang-Jung;Jung, Il-Jin
    • Journal of Environmental Health Sciences
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    • v.34 no.5
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    • pp.382-386
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    • 2008
  • This study was designed to establish the time frame of viability and infectivity of Cryptosporidium, when the Cryptosporidium is discharged to the aquatic environment. Changes in viability and infectivity of Cryptosporidium in relation to temperature and pH were investigated during winter (Dec 05-Feb 06) using semipermeable cellulose tubes containing infective Cryptosporidium. Infectivity was maintained at 50% after 30 days and almost completely lost after 50 days. It was also established that viability was maintained at about 8% after 90 days.

A Study on the Development Direction in Korea Marine Communication (한국의 해양통신 발전방향에 관한 연구)

  • Shin, Hyun-Shik
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.4
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    • pp.527-534
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    • 2013
  • This thesis is what accident in sea have been produced as lost themselves life and property about 600-700times at every years. Therefore this was induced to experiment on a national basis that the role of communication of ship is to move from lose themselves life and property.

LCC Analysis Model of the Reconstruction and Remodeling Types of High-density Apartment Houses (공동주택의 재건축과 리모델링의 비교분석을 위한 모델구축방안)

  • Jeong, Yong-Sik;Lee, Sang-Beom
    • Journal of the Korea Institute of Building Construction
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    • v.5 no.4 s.18
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    • pp.91-98
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    • 2005
  • This paper illustrates a comparative analysis on the economic efficiency of remodeling method that is one of major factors in totting more desirable standards and proposes to utilize LCC calculation techniques in generating a required budget for more effective quantity-based analysis that is both objective and effect. Rather than comparing only the initial lost of two different methods, it seems through to compare their entire life cycle cost that includes any repair and reconstruction/ remodeling expenses, thus generate overall quantitative analysis in objective perspective

A Study on the Connotative Signs of Nature and Technology in Furniture Design - Focused on Verner Panton's and Joe Colombo's 1960's Furniture - (가구디자인에 있어 자연과 기술의 기호적 내포에 관한 연구 - 베르너 판톤과 죠 콜롬보의 1960년대 작품을 중심으로 -)

  • Suh, Jeong Yeon
    • Journal of the Korea Furniture Society
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    • v.24 no.2
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    • pp.121-130
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    • 2013
  • Nature and technology are very popular themes in the everydayness of modern world. In our industrial age which is based on technology nature becomes an lost origin and basic environment. On the other hand, technology is conceived as future hope and realistic environment. Through 1960s they had been transformed as signs and connoted into furniture design. As signs, they structured environment, organized space, and bred their own aesthetics. In this context, Danish designer Verner Panton presented nature as experiential landscape and Italian designer Joe Colombo expressed technology as amusing machine. What they showed were not real but sign of nature and machine. Nonetheless they were successful to create aesthetic atmosphere and meaningful projects. Also they showed the potentiality that furniture design might include discoursive issues and values. They also extended functional interesting between furniture and body to cultural domain of social viewpoint in behavioral pattern.

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Storage Stability and Color Reproducibility of Yellow and Red Dyes Extracted from Carthamus tinctorius L.

  • Shin, Youn-Sook;Yoo, Dong-Il
    • Textile Coloration and Finishing
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    • v.24 no.3
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    • pp.165-172
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    • 2012
  • The stability of yellow and red dyes prepared from safflower (Carthamus tinctorius L.) in aqueous solution and in solid state was investigated. External factors such as light irradiation and temperature on the stability were examined during storage. Changes in absorbance of dye solutions and the color changes of fabrics dyed after long time storage were measured. Also, color reproducibility during storage was investigated by dyeing test on various fabrics. Red colorant in aqueous solution was very unstable to light, resulting that about 40% of absorbance were lost in 12hrs. The absorbance of yellow dye solutions was not decreased within 84hrs. In aqueous medium, yellow dye was much more stable than carthamin. Both dyes are relatively stable for long storage when they are stored in solid state compared to when in aqueous solution. Color changes are marginal in both dyes.

Multilateral Analysis on the Implementation of Electronic Resident Registration Cards (전자주민증 도입에 따른 다각적인 분석)

  • Lee, Young Gyo;Ahn, Jeong Hee
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.5 no.2
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    • pp.109-121
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    • 2009
  • As our society is changed to the information & digital society based on the internet, the requirement that the analog certificate of Korean residence is changed to digital one is increased. The Korean Government selected the smart card of 72 KB for the digital certificate of Korean residence and try to insert the personnel information of 41 items to it. The method that the numerous personnel information is stored in one smart card is convenience to use. If the certificate of residence is lost, the number of personnel information is misused or spreaded thorough the Internet by the hacking. In this paper, we analyze the problem about the digital certificate of Korean residence and propose the countermeasure about the problem. In the proposal, the digital certificate of residence have only the certificate. Therefore, the size of the smart card is minimized and can be canceled at the loss of the certificate of residence. And the exposure worry of personnel information will be decreased.