• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.165-166
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• 2023

Free-form Concrete Panel(FCP) is each panel that composes the concrete exterior skin of Free-form building. FCPs contain curved surfaces, and FCPs have different curvature, size, and angles. In order to manufacture FCP, high technology is required, and it is currently difficult to manufacture it according to the design shape. In particular, many errors occur in the side shape of FCP. This is because when the side silicone mold is applied, it is installed without a coupling method between molds and support device. In this study, basic research was conducted to develop a side silicone mold support device to solve the above problems. We classified the required performance and derived the detailed requirements. Also, Based on this, we drew the basic design of the support device. We plans to conduct design improvement, mock-up making, and FCP manufacturing experiments through future research.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2011년도 추계학술발표대회 논문집
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• pp.137-142
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• 2011

Individual solar cells must be connected together to give the appropriate current and voltage levels and they must also be protected from damage by the environment. [1] PV module consists of a glass/ polymer encapsulation/ solar cell string/ polymer encapsulation/ back sheet. Usually, encapsulation materials is used EVA(ethylene vinyl acetate), PVB(polyvinyl butyral), PO(polyolefin)sheet. This study is about fabrication of module using silicone material instead of above them. We got to know advantage that is fabrication time and efficiency of modules.

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1981년도 제15차 학술대회연제순서 및 초록
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• pp.4.3-5
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• 1981

최근 병원 각과에 있어서 기관내 삽관 혹은 기관절개에 의한 장기간에 걸친 호흡관리 증례가 증가하고있다. 이는 장기간의 호흡관리상의 문제점으로서 삽관 그 자체 혹은 Cuff에 의한 조직손상으로 후두 및 기관에 협착을 일으키게 하고 있다는 것은 주지의 사실이다. Meclelland는 기관절개를 받은 389례중 14례(3.6%)가 기관삽관발거곤란증을 일으켰고, 우리나라에서도 홍등은 기관절개를 받은 1514례중 23례(1.5%)가 기관협착을 일으켰다고 보고하고 있다. 교통사고와 산업재해등에 의한 후두 및 기관손상도 증가의 경향을 보이고 있다. 이러한 후두 및 기관손상에 의한 협착에 대하여 과거 여러가지 요법이 있었다. 즉 보존적 치료법과 수술적 치료법으로 나눌 수 있는데 최근에 주목되고 있는 Silicone T-tube은 기도를 적절히 유지하고 재건한 기관을 지탱하여 주기 위해서 고안된 것이다. 최근에 저자들은 2례의 후두 및 기관외상 환자와 9개월 간의 기관 Cannula 발거곤란증 1례에 대하여 Silicone T-tube를 사용하며 좋은 결과를 얻었기에 문헌적 고찰과 함께 보고하는 바이다.

• Biotechnology and Bioprocess Engineering:BBE
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• 제7권5호
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• pp.289-294
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• 2002

Cellulose production by Acetobacter pasteurianus was investigated in static culture using four bioreactors with silicone rubber membrane submerged in the medium. The shape of the membrane was flat sheet, flat sack, tube and cylindrical balloon. Production rate of cellulose as well as its yield on consumed glucose by the bacteria grown on the flat type membranes was approximately ten-fold greater than those on the non-flat ones in spite of the same membrane thickness. The membrane reactor using flat sacks of silicone rubber membrane as support of bacterial pellicle can supply greater ratio of surface to volume than a conventional liquid surface culture and is promising for industrial production of bacterial cellulose in large scale.

• The Journal of Advanced Prosthodontics
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• 제2권3호
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• pp.65-70
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• 2010

Large oro-facial defects result from cancer treatment consequences in serious functional as well as cosmetic deformities. Acceptable cosmetic results usually can be obtained with a facial prosthesis. However, retention of a large facial prosthesis can be challenging because of its size and weight. This article describes prosthetic rehabilitation of a 57-year-old man having a right lateral mid-facial defect with intraoral-extraoral combination prosthesis. A modified technique to fabricate a hollow substructure in heat-polymerizing polymethyl-methacrylate to support silicone facial prosthesis was illustrated. The resultant facial prosthesis was structurally durable and light in weight facilitating the retention with magnets satisfactorily. This technique is advantageous as there is no need to fabricate the whole prosthesis again in case of damage of the silicone layer because the outer silicone layer can be removed and re-packed on the substructure if the gypsum-mold is preserved.

• Advances in materials Research
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• 제11권3호
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• pp.237-250
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• 2022

The cone bolts with expanded front ends supply improved anchoring performances and increase energy absorbing capacities due to ploughing in the grouted drills. Within this study, use of a novel energy absorber for the cone bolt heads were investigated to assess its design in terms of supplying high support performances. Additionally, different grout material designs were tested to investigate whether the energy absorption capacities of the rock bolts can be improved using a silicone based thermoset polymer (STP) additive. To determine load bearing and energy absorption capacities, a series of deformation controlled pull-out tests were carried out by using bolt samples grouted in rock blocks. According to the results obtained from this study, maximum load bearing capacities of cone bolts are similar and mostly depend on the steel material strength, whereas the energy absorption capacity was determined to significantly vary in accordance with the displacement limits of the shanks. As a result of using STP additive and new polyamide absorber rings, displacement limits without the steel failure increase. The STP additive was found to improve the energy absorption capacities of grouted cone bolts. The absorber rings designed within this study were also assessed to be highly effective and able to double up the energy absorption capacities of the cone bolts.

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1982년도 제16차 학술대회연제순서 및 초록
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• pp.9.2-9
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• 1982

최근 문명의 발달과 함께 증가추세를 보이고 있는 여러 형태의 사고(교통사고, 뇌졸중 등)시 응급처치의 일환으로 임상각과에서 시행하고 있는 기관내 삽관혹은 기관절개술은 생명유지에 있어서 꼭 필요한 기본처치라 하겠다. 그러나 응급이라는 말 그대로 조급한 수술 및 그에 따른 제반문제, 술후 불충분한 기관 cannula 관리, 장기간의 삽관 등으로 인해 여러가지 합병증이 발생될 수 있는 것으로 알려져 있으며, 근자에 와서 특히 이비인후과영역에서 심각하게 대두되고 있는 문제가 기관협착증 및 기관 cannula 조거곤난증이라 하겠다. 이는 이차적 감염 및 육아조직의 형성, high tracheostomy, 유소아의 해부학적 구조, 불적절한 cannula의 사용, 기관 전벽의 광범위한 절제, 그외 정신적 요소 등이 원인으로서 작용한다고 한다. 근래 항생제의 개발과 수술 및 치료방법의 진보에 따라 그 빈도가 다소 멸소되었다고 하나 현재까지도 임상각과에서 종종 보고되고 있으며 한국의 홍 등은 과거 10연간 기관절개를 받은 1514 예중 23예( 1.5 %)에서, Meclelland는 389 예중 14 예중 (3.6%)에서 기관협착증이 발생하였다고 하였으며 조등은 363 예중 3예( 1 %), Meade는 212예중 5 %에서 기관 cannula 발거곤난증이 발생하였다고 보고하였다. 치료로서는 크게 나누어서 수술적료법과 보존적료법으로 대별할 수 있는 데 보존적료법중의 하나인 silastic T_tube의 사용은 적절한 기도유지와 함께 삽입하기에 좋은 flexibility 및 경미한 tissue reaction등으로 최근 주목을 받고 있다. 저자들은 최근 교통사고로 인하여 신경외과에서 기관절개술을 시행한 22세된 남자로서, 술후 4개월만에 기관절개 부위의 육아조직의 증식 및 2차적 감염으로 인해 발생한 기관협착증 1예와, 낙상으로 인해 기관절개술을 시행한 5세된 여아로서 수술당시 high tracheostomy 및 기관전벽의 광범위한 절제로 인하여 발생되었을 것이라고 사료되는 기관 Cannula 발거곤난증 1예를 각각 경험하고, silicone T_tube를 약 3개월간 삽입하여 좋은 결과를 얻었기에 문헌적 고찰과 함께 보고하는 바이다.

• Archives of Plastic Surgery
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• 제42권2호
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• pp.131-142
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• 2015

Literature indicates an increased risk of suicide among women who have had cosmetic breast implants. An explanatory model for this association has not been established. Some studies conclude that women with cosmetic breast implants demonstrate some characteristics that are associated with increased suicide risk while others support that the breast augmentation protects from suicide. A systematic review including data collection from January 1961 up to February 2014 was conducted. The results were incorporated to pre-existing suicide risk models of the general population. A modified suicide risk model was created for the female cosmetic augmentation mammaplasty candidate. A 2-3 times increased suicide risk among women that undergo cosmetic breast augmentation has been identified. Breast augmentation patients show some characteristics that are associated with increased suicide risk. The majority of women reported high postoperative satisfaction. Recent research indicates that the Autoimmune syndrome induced by adjuvants and fibromyalgia syndrome are associated with silicone implantation. A thorough surgical, medical and psycho-social (psychiatric, family, reproductive, and occupational) history should be included in the preoperative assessment of women seeking to undergo cosmetic breast augmentation. Breast augmentation surgery can stimulate a systematic stress response and increase the risk of suicide. Each risk factor of suicide has poor predictive value when considered independently and can result in prediction errors. A clinical management model has been proposed considering the overlapping risk factors of women that undergo cosmetic breast augmentation with suicide.

• 한국막학회:학술대회논문집
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• 한국막학회 2003년도 The 4th Korea-Italy Workshop
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• pp.69-72
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• 2003

Volatile organic compounds (VOC) cause air pollution problem and deterioration of atmosphere of petrochemical and fine chemical plants. Hybrid process of membrane and cold-condensation were developed and it effectively removed and recycled the VOC. Operation parameters of the process were optimized to attain hish removal and recycle of VOC. Composite membranes for organic vapor separation were developed in this work by PDMS coating and plasma polymerization on polypropylene and polysulfone support membranes. PDMS and various silicone monomers were tested for several organic vapors such as benzene, toluene, TCE, and HCFC, which are produced in petrochemical and fine chemical industry and causes air pollution problems if are released to atmosphere. Composite membranes prepared in this work showed appreciable performance in terms of organic vapor removal and reuse. Performance variation of the membranes was correlated with their surface characteristics.

• Archives of Plastic Surgery
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• 제39권6호
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• pp.612-617
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• 2012

Background Packing after closed reduction of a nasal bone fracture causes inconvenient nasal obstruction in patients. We packed the superior meatus with Vaseline gauze to support the nasal bone, and packed the middle nasal meatus with a Doyle Combo Splint consisting of an airway tube, a silastic sheet, and an expandable sponge to reduce the inconvenience. In addition, we aimed to objectively identify whether this method not only enables nasal respiration but also sufficiently supports the reduced nasal bone. Methods Nasal ventilation was measured via spirometry 1 day before surgery and compared to 1 day after surgery. To compare support of the reduced nasal bone by the 2 methods, 2 plastic surgeons assessed the displacementon X-rays taken after the surgery and after removing the packing. The extent of nasal obstruction, dry mouth, sleep disturbance, headache, and swallowing difficulty were compared with visual analog scales (VAS) on a pre-discharge survey. Results In the experimental group, the nasal respiration volume 1 day after surgery remained at $71.3%{\pm}6.84%$ on average compared to 1 day prior to surgery. Support of the reduced bone in the experimental group ($2.80{\pm}0.4$) was not significantly different from the control group ($2.88{\pm}0.33$). The VAS scores for all survey items were lower in the experimental group than in the control group, where a lower score indicated a lower level of inconvenience. Conclusions The nasal cavity packing described here maintained objective measures of nasal respiration and supported the reduced bone similar to conventional methods. Maintaining nasal respiration reduced the inconvenience to patients, which demonstrates that this packing method is useful.