• 제목/요약/키워드: Toe

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송수신 분리형 TCP/IP Offload Engine을 위한 소프트웨어 및 하드웨어 모듈의 설계 (Design of Software and Hardware Modules for a TCP/IP Offload Engine with Separated Transmission and Reception Paths)

  • 장한국;정상화;최영인
    • 한국정보과학회논문지:시스템및이론
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    • 제33권9호
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    • pp.691-698
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    • 2006
  • TCP/IP Offload Engine(TOE)는 TCP/IP 프로토콜을 네트워크 어댑터 상에서 처리함으로써 호스트 CPU의 프로토콜 처리 부하를 줄이는 기술이다. TOE의 구현 방안으로는 임베디드 프로세서를 사용한 소프트웨어 TOE, ASIC 기반의 하드웨어 TOE, 그리고 하드웨어와 소프트웨어 구현의 장점을 결합한 하이브리드 TOE 등이 제안되어 왔다. 본 논문에서는 하이브리드 방식의 TOE 구현을 위해 두 개의 프로세서 코어를 내장한 FPGA를 기반으로 임베디드 리눅스 기반의 소프트웨어 모듈 및 데이타 송수신에 필요한 하드웨어 모듈들을 설계하였다. 두 개의 프로세서 코어를 사용하여 송신 경로와 수신 경로를 분담하여 관리함으로써 리눅스 프로세스들 사이의 작업 전환 오버헤드를 줄일 수 있고, 송신과 수신 과정의 병렬 처리를 통해 단일 임베디드 프로세서의 성능 한계를 극복할 수 있다. 하드웨어 모듈은 패킷 헤더의 생성 및 처리, DMA를 사용한 데이타 수집 및 저장 등을 담당하여 송수신 성능을 향상시킨다. 본 논문에서는 프로세서 코어 내장형 FPGA가 장착된 TOE 네트워크 어댑터를 사용하여 송수신 분리형 TOE의 성능을 검증하였다.

동측 역행성 유경 피판술을 이용한 무지의 재건 - 1예 보고 - (Homodigital Reverse Pedicle Island Flap for Reconstruction of the Great Toe - A Case Report -)

  • 황정철;정덕환
    • Archives of Reconstructive Microsurgery
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    • 제20권1호
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    • pp.64-67
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    • 2011
  • Reconstruction of the distal portion of the great toe has always represented a difficult problem to surgeons. There are many methods of flap reconstruction described for foot defects, but none for tip of the great toe. We report a case of reconstruction of the great toe using a homodigital reverse pedicle island flap method. A 25-year-old man had a crushing injury at the distal phalanx of the left great toe. A homodigital reverse pedicle island flap was raised from the dorso-medial aspect of the proximal phalanx of the great toe based on the distal dorsal arcade. The flap covered the exposed distal phalanx and stump was closed without shortening. He made an uncomplicated recovery and when seen 6 months later he had a good cosmetic and functional result. A homodigital reverse pedicle island flap is described for the reconstruction of the distal part of the great toe. It involves only a single stage procedure with minimal donor site morbidity and provides a good cosmetic results.

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Effects of Trifoliate Orange (Poncirus trifoliata) Extract on Inflammatory Responses in LPS-induced Shock Rats and RAW 264.7 Cells

  • Lee, Eun
    • 한국자원식물학회지
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    • 제29권3호
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    • pp.305-312
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    • 2016
  • This study examined the effects of trifoliate orange extract (TOE) on inflammatory reactions at the time of an LPS shock by performing experiments on rats injected with trifoliate orange extract and in Raw 264.7 cell cultures, with the aim of developing a new anti-inflammatory medicine. The IL-1β, IL-6, and TNF-α concentrations were lower in all of the groups treated with TOE than in the control group after 5 h of LPS treatment. The IL-10 concentration was higher in the 300-㎎/㎏ TOE group than in the control group after 2 h and 5 h of LPS treatment. The liver concentrations of cytokines IL-1β and IL-6 decreased more in the groups treated with TOE than in the control group and the IL-6 concentration did not differ significantly between the 100-㎎/㎏ TOE group than in the control group. The TNF-α and IL-10 concentrations did not differ significantly between the TOE groups and the control group. In the experiments involving Raw 264.7 macrophage cultures subjected to LPS shock, the productions of IL-1β, IL-6, and TNF-α decreased in all of the groups treated with TOE compared to the control group. The IL-10 concentration did not differ significantly between the groups treated with TOE and the control group. Together the findings of this study suggest that TOE contains functional substances that can influence inflammatory reactions.

전외측 대퇴 유리피판을 이용한 외상 후 족무지 재건: 증례 보고 (Post-Traumatic Big Toe Reconstruction using Anterolateral Thigh Free Flap: A Case Report)

  • 왕재권;은석찬;백롱민
    • Archives of Plastic Surgery
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    • 제37권4호
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    • pp.457-460
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    • 2010
  • Purpose: The great toe presents a reconstructive challenge for plastic surgeons. The big toe has much importance not only for the gait and the stability, but also for appearance aspects. Few reports have documented the reconstruction of big toe defects and we report a unique case of free flap reconstruction technique. Methods: A 41-year-old man with right great toe open fracture with soft tissue necrosis was referred from the orthopedic surgery department. On physical examination, there was the skin necrosis circumferentially and the fratured bone was severely fragmented. The metatarsophalangeal (MTP) joint of the big toe was intact. After the wound debridement, we harvested the innervated anterolateral thigh flap and transposed to the defected area. After five months, we finally retouched the flap by the dorsal defatting and distal debulking. Results: He had an uneventful postoperative course without infection, dehiscence and flap necrosis. He has remained asymptomatic for eight months without any recurrence such as the osteomyelitis. Finally, he kept the normal gait and posture with weight bearing on the reconstructed great toe and foot. Conclusion: The anterolateral thigh flap is described for the reconstruction of the great toe. It involves two stage procedure with the minimal donor site morbidity and provides a good cosmetic result.

TOE를 위한 소켓 인터페이스의 구현 (An Implementation of Socket Interface for TOEs)

  • 손성훈
    • 한국멀티미디어학회논문지
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    • 제8권11호
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    • pp.1472-1482
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    • 2005
  • TOE (TCP/IP Offload Engine)는 부하가 많은 대규모 네트워크 서버에서 TCP/IP 프로토콜 처리의 부담을 줄이기 위해 고안된 하드웨어 장치이다. 본 논문에서는 TOE (TCP Offload Engine)를 사용하는 대규모 멀티미디어 서버를 위한 소켓 인터페이스 계층의 설계 및 구현에 대해 다룬다. 제안된 소켓 인터페이스 계층은 리눅스 운영체제 상에서 커널 모듈로 설계, 구현되었으며, BSD소켓 계층과 INET소켓 계층 사이에 존재하면서 응용 프로그램의 소켓 관련 요청을 TOE나 기존 INET소켓 계층으로 전달하는 역할을 한다. 본 논문에서 제안한 소켓 인터페이스는 소켓을 통해 TOE를 사용하는 응용 프로그램에 대해서 모든 표준 소켓 입출력 API와 파일 입출력 관련 API를 그대로 제공하고, 기존 응용 프로그램들에 대해서도 수정 없이 TOE의 기능을 그대로 사용할 수 있는 바이너리 수준의 호환성을 제공하며, 한 시스템에서 TOE와 이더넷 NIC을 동시에 사용할 수 있게 된다.

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Estimating Wildfire Fuel Load of Coarse Woody Debris using National Forest Inventory Data in South Korea

  • Choi, Suwon;Lee, Jongyeol;Han, Seung Hyun;Kim, Seongjun;Son, Yowhan
    • 한국기후변화학회지
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    • 제6권3호
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    • pp.185-191
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    • 2015
  • This study presents an estimate of on-site surface fuel loadings composed of coarse woody debris (CWD) using $5^{th}$ National Forest Inventory (NFI) data in South Korea. We classified CWD data into forest type, region and decay class, and used conversion factors by decay class and tonne of oil equivalent developed in the country. In 2010, the total wildfire fuel load of CWD was estimated as 8.9 million TOE; those of coniferous, deciduous and mixed forests were 3.5 million TOE, 2.8 million TOE and 2.6 million TOE, respectively. Gangwon Province had the highest wildfire fuel load of CWD (2.3 million TOE), whereas Seoul exhibited the lowest wildfire fuel load of CWD (0.02 million TOE). Wildfire fuel loads of CWD were estimated as 2.9 million TOE, 1.9 million TOE, 2.4 million TOE and 1.7 million TOE for decay classes I, II, III and IV, respectively. The total wildfire fuel load of CWD corresponded to the calorific value of 8.2 million tons crude oil, 2.46% of that of living trees. Proportionate to the growing stock, total wildfire fuel load of CWD was in a broad distinction by region, while its TOE $ha^{-1}$ was not. This implies that there is no need to establish different guidelines by region for management of CWD. The results of this work provide a baseline study for scientific policy guidelines on preventing wildfires by proposing CWD as wildfire fuel load.

발가락 양말 사용성에 관한 연구: 베룽코 발가락 양말 디자인을 중심으로 (A Study on the Useability of Toe Socks: Focusing on Verrunco Toe Socks Design)

  • 박지훈;장중식;정홍기
    • 한국융합학회논문지
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    • 제12권5호
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    • pp.101-108
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    • 2021
  • 현대인들은 일상생활과 함께 운동 부족에 시달리고 있으며 이에 따라 발의 족부질환도 증가하는 추세이다. 이에 따라 양말 디자인도 다양화되고 있으며, 그중 족부질환의 예방과 완화에 도움을 주는 발가락 양말의 개발도 활발하게 진행되고 있다. 이에 본 연구는 발가락 양말 디자인에 대한 연구를 진행하였으며, 이론적 배경을 통해 발가락 양말 디자인에 대한 개념을 정리하였다. 또한 사례 조사 및 선행연구를 통해 사용성 평가에 활용할 Task를 수립하였다. 실증연구를 통해 사용성 평가를 진행한 결과 일반 양말 디자인 대비 발가락 양말 디자인의 만족도가 낮음을 알 수 있었고 사용성 측면에서는 발가락 양말 디자인의 사용성의 만족도가 높은 것을 알 수 있었다. 이에 따라 발가락 양말 디자인의 개선점을 도출하였으며, 첫째 발가락 양말 사이의 히든 파티션을 보완하고, 색상의 유사 배색과 색상의 다원화를 통해 발가락 양말 디자인을 개선할 수 있을 것으로 기대한다.

다양한 부하에서 2~5번째 발가락 폄을 동반한 짧은 발 운동이 엄지벌림근 근활성도와 안쪽세로활에 미치는 영향 (Effect of the Short Foot Exercise with 2nd~5th Toe Extension on the Abductor Hallucis Activity and Medial Longitudinal Arch under Various Loads)

  • 송성인;배창환;김상현
    • 대한정형도수물리치료학회지
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    • 제29권1호
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    • pp.25-31
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    • 2023
  • Background: In this study, the abductor hallucis activity and medial longitudinal arch angle were compared by performing four exercises, namely the short foot exercise, the short foot exercise with 2nd~5th toe extension, the short foot exercise with 2nd~5th toe extension with a load of 1kt on the sole, and the short foot exercise with 2nd~5th toe extension with a load of 2kg on the sole. Methods: Four short foot exercises as described above were performed by 20 healthy adult males and females. The abductor hallucis activity and medial longitudinal arch angle were measured and analyzed by surface electromyography and the Kinovea software program. Results: The short foot exercise with 2nd~5th toe extension, short foot exercise with 2nd~5th toe extension with a load of 1kg on the sole, and the short foot exercise with 2nd~5th toe extension with a load of 2kg on the sole showed significantly higher abductor hallucis activity than the short foot exercise alone. Among these, the short foot exercise with the 2nd~5th toe extension was the most effective. All exercises showed a significantly decreased medial longitudinal arch angle post-exercise than pre-exercise, and the short foot exercise with the 2nd~5th toe extension showed a significantly decreased medial longitudinal arch angle compared to the other three exercises. Conclusion: It is believed that the short foot exercise with the 2nd~5th toe extension can be proposed as an effective exercise that can replace the short foot exercise alone.

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합성형 TOE을 위한 개발 가이드에 관한 연구 (Research about Development Guide for Composition TOE)

  • 송재구;김석수
    • 융합보안논문지
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    • 제7권3호
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    • pp.25-30
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    • 2007
  • 보안제품에 대한 평가기준은 CC 버전 3의 등장과 더불어 단일 제품평가에서 합성형 제품의 평가로 그 평가 범위가 넓어지고 있다. 이에 합성형 제품을 평가하기 위한 기준에 연구와 그 도입방안에 대한 연구가 필요시 된다. 본 논문에서는 이러한 합성형 TOE을 위한 개발 가이드에 대해 연구함으로써 CC 버전 3의 평가 기준에 적합한 한국형 합성형 제품 평가 방안을 제시하고자 한다. 구체적인 방안으로 유럽의 ITSEM 컴포넌트 지침과 TOE를 분석함으로써 합성형 제품의 평가 가이드 방안을 제시한다.

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선천성 족지 기형의 치료 (Treatment of Congenital toe Anomalies)

  • 차성무;서진수
    • 대한족부족관절학회지
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    • 제16권3호
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    • pp.148-155
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    • 2012
  • There are many different type of congenital toe anomalies such as syndactyly, polydactyly which are more common, and less frequently macrodactyly and curly toe. Congenital anomaly of hand can decrease the hand function and easy to be visualized, so the early treatment of anomaly is natural and recommended. On the other hand, Congenital anomaly of foot rarely decrease the foot function and was hidden in the shoe, so treatment of anomaly was delayed frequently. However, the surgery can be needed, as the foot getting grown-up, discomfort of shoe fitting or intractable plantar keratosis due to secondary deformation of foot can occur. A distinct feature and surgical consideration was compared with congenital anomaly of hand and it should be taken into account in the treatment of adult toe anomalies.