• 제목/요약/키워드: Skin tests

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Attention layer를 활용한 이미지 기반 피부암 분류 시스템 (Image-Based Skin Cancer Classification System Using Attention Layer)

  • 이규원;우성희
    • 실천공학교육논문지
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    • 제16권1_spc호
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    • pp.59-64
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    • 2024
  • 고령화가 심화되면서 암 발병률이 증가하고 있다. 피부 암은 외적으로 보이지만 사람들이 알아채지 못하거나 가볍게 간과하는 경우가 많다. 이에 초기 발견 시기를 놓쳐 말기의 경우 생존율이 7.5~11%로 사망에 이를 수 있다. 하지만 피부 암을 진단함에 있어 육안으로 진단하는 것이 아닌 정밀검사, 세포 검사 등 시간과 비용이 많이 든다는 단점이 있다. 따라서 본 연구에서는 이러한 단점을 해결하기 위해 Attention CNN 모델 기반 피부암 분류 시스템을 제안한다. 이 시스템은 전문의로 하여금 피부 암을 초기에 발견하여 신속한 조치를 취할 수 있도록 하는데 큰 도움을 줄 수 있다. 피부암 종류에 따른 이미지 데이터 불균형 문제에서 분포 비율이 낮은 데이터에는 Over Sampling 기법을, 분포 비율이 높은 데이터에는 Under Sampling 기법을 적용하여 완화하고 Attention layer가 없는 모델과 있는 모델을 비교하여 Attention layer가 없는 사전학습 모델에 추가한 피부암 분류 모델을 제안한다. 또한, 특정 클래스에 대하여 데이터 증강 기법을 강화하여 데이터 불균형 문제를 해결할 계획이다.

PRD 강환 말뚝의 연직지지력 특성에 관한 사례 연구 (Case Study on the Characteristics of Vertical Bearing Capacity for Steel Pipe Pile Installed by PRD)

  • 최용규;정창규;정성기;김동철;정태만
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 1999년도 봄 학술발표회 논문집
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    • pp.225-232
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    • 1999
  • Construction case of PRD (Percussion Rotary Drill) pipe pile and matters to be attended in construction of PRD pile were reviewed. The compressive and uplifting static pile load tests for PRD piles were performed and, also, analysis by Pile Driving Analyzer was done. Based on these results, bearing components in each resisting part (that is: steel toe, external skin, and internal skin) were measured separately. The measured resisting force was compared to the value calculated by the estimated formula. The pile capacity was mobilized in steel toe area and the external skin friction and the internal friction were not produced. Thus, it could be considered that toe of PRD pile should be supported in hard bearing stratum (for example, the fresh soft rock).

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The treatment of lower extremity defects with severe proliferative tissue using an adjustable horizontal mattress suture in a Tosa dog

  • Heo, Suyoung;Kim, Namsoo
    • 대한수의학회지
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    • 제54권2호
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    • pp.121-122
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    • 2014
  • A 2-year-old male Tosa was admitted for treatment of a non-healing wound on the right forelimb. Skin tests were unremarkable; however, the lesion contained severe proliferative tissue. Surgical treatment was conducted due to the extensive skin defect and granulation tissue present. Following removal of the proliferative tissue, the wound was closed using the adjustable horizontal mattress suture method with multiple punctate relaxing incisions. The proliferative tissue healed completely after the surgical treatment. This technique can be considered an alternative treatment for the proliferative tissue when conditions require a skin graft or flap after surgical treatment.

항타강관말뚝의 주면마찰저항 특성에 관한 현장실험 연구 (A Field Test Study on Skin Friction Behavior of Driven Steel Piles)

  • 이민희;이충숙;정창규;최용규
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2005년도 춘계 학술발표회 논문집
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    • pp.575-582
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    • 2005
  • Static pile load tests for three instrumented driven steel pipe pies were performed. Based on the distributions of pile axial loads along the pile depth, Characteristics of unit skin friction were analyzed.

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항타강관말뚝과 현장타설말뚝의 주면마찰력 거동에 관한 현장실험 연구 (A Study on Friction Capacity Behavior for Driven Steel Pipe Pile and Drilled Shaft Pile with Field Test)

  • 정성민;이민희;송병덕;최용규
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2005년도 춘계 학술발표회 논문집
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    • pp.1-8
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    • 2005
  • In this study, static pile load tests for instrumented drilled shaft pile and instrumented driven steel pipe pile were performed. Based on the results of pile load test, skin friction of each stratum was compared. Skin friction of drilled shaft were more than those of driven pile at the same settlement. This was based on the difference of surface roughness of piles and pile construction methods.

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CJ-50001 (rG-CSF)의 Rabbit에서의 국소자극성 (Study on Local Irritation of CJ-50001 (rG-CSF) in Rabbits)

  • 김종호;임동문;김달현;정종상;김제학;김현수
    • Toxicological Research
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    • 제13권3호
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    • pp.307-310
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    • 1997
  • The local irritation study (skin & occular irritation tests) of CJ-50001, a rG-CSF (recombinant granulocyte-colony stimulating factor) was performed in Japanese White rabbits. CJ-50001 was administered at a dose of 150 $\mu\textrm{g}$/rabbit (300$\mu\textrm{g}$ /ml, 0.5 ml) to the bare skin and at a dose of 30 $\mu\textrm{g}$/rabbit (300 $\mu\textrm{g}$/ml, 0.1 ml) to the conjunctival sac of the eye, respectively. In these experiments, there were no clinical signs which were related to CJ-50001 compared with control group. In conclusion, CJ-50001 doesn't have any irritating activity to skin and eye as 0.03% solution.

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PRD 공법을 이용한 매입말뚝의 지지력 특성 (Bearing Capacity Characteristics of Drilled Shafts using Percussion Rotary Drilling)

  • 윤형준;정국상;정상섬
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2001년도 봄 학술발표회 논문집
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    • pp.307-314
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    • 2001
  • The bearing capacity of drilled shafts that take excavation by Percussion Rrotary Drilling(PRD) into consideration was evaluated using static and dynamic pile load tests. The emphasis was on quantifying the allowable bearing capacity and point load-transfer at the pile tip on seven instrumented steel piles. Of the seven instrumented piles, five piles are placed to the bottom of the excavation by rotary and pushing into the final depth of the excavation, as opposed to the two driven piles. Based on the results obtained, it is shown that the skin friction mobilized by PRD is much greater than point resistance, whereas in driven piles, the point resistance is greater than skin friction. It is also found that much greater pile capacity was proved in the case of drilled shafts, compared to the driven piles and thus, the excavation by rotary drilling gives reliable pile capacity required to design axially loaded piles.

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인과립구 콜로니 자극인자 제제인 HM10411 (rhG-CSF)의 국소자극성 (Local Irritation Test of HM10411 (rhG-CSF) in Rabbits)

  • 차신우;한정희;김충용;서정은;김종춘;권세창
    • Biomolecules & Therapeutics
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    • 제10권3호
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    • pp.170-174
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    • 2002
  • The local irritation study (skin and occular irritation tests) of HM10411, a rhG-CSF (recombinant human granulocyte-colony stimulating factor) was carried out in New Zealand White rabbits. HM10411 was applied to the bare skin at a dose of 2.5 mg/rabbit (5.0 mg/ml, 0.5 ml) and to the conjunctival sac of eye at a dose of 0.5 mg/rabbit (5.0 mg/ml, 0.1 ml) , respectively. In this study, there were no clinical signs which were related to HM10411 compared with those of control group. From above results, HM10411 has not any irritating activity to skin and eye in rabbits.

풍력블레이드의 패브릭 스킨재료 물성 시험방법에 대한 고찰 (Review of Test Methods for Fabric Skin Properties of Fabric-Covered Wind Turbine Blade)

  • 조형순;배재성;이수용
    • 항공우주시스템공학회지
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    • 제9권3호
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    • pp.31-38
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    • 2015
  • Wind Turbines are becoming larger in size in order to improve economic efficiency through cost reduction, such as the construction of growth and power infrastructure of energy efficiency. It have requested the large-scale blade design and production. In the present study the new manufacture technique called a fabric-blade structure using spar, rib, and fabric membrane skin is introduced. The architectural membrane test method has been studied to be applied to the skin of the blade. The density and one-axis tensile tests of the architectural membrane materials are conducted to confirm the physical properties which are necessary to the structural designs and analyses of the wind turbine blade.

Anaphylaxis occurred immediately after prophylactic antibiotics injection with negative intradermal skin test during laparoscopic cholecystectomy

  • Jeong, Hyung Joo;Kung, Hsi Chiang;Park, Tae Woo;Kang, Dong Hee;Shin, Yu Som;Kim, Ju Deok
    • 고신대학교 의과대학 학술지
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    • 제33권2호
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    • pp.245-251
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    • 2018
  • Prophylactic antibiotics that are used to prevent post-operative infection can commonly cause anaphylactic reactions during anesthesia. It is therefore necessary to perform a skin test before antibiotics are administered in order to diagnose and prevent anaphylactic reactions. However, the results of the antibiotic skin test can differ according to the drug, dose, and reagent concentration. We report a case of anaphylactic shock with bronchospasm and cardiovascular collapse immediately following administration of the prophylactic cefazedone after induction of general anesthesia for laparoscopic cholecystectomy.