IPv6 포럼 코리아

이형호,Lee, Hyeong-Ho 한국정보통신기술협회 2006 TTA저널 Vol.103 No.-

IPv6 포럼 코리아(http://www.ipv6.or.kr)는 지난 2000년, 정부의 지원 하에 IPv6 기술의 국내 조기 도입을 목표로 IPv6 도입의 기술적 타당성 검증 및 적시성 검토, IPv6 관련 시장 활성화, IPv6 기술의 교육및 보급, IPv4 기반의 인터넷에서 IPv6 기반의 차세대인터넷으로 전환 하기 위한 환경조성 등을 목적으로 구성되었으며, 올해로 만 6년째를 맞이하고 있다. 2006년 1월 현재 IPv6 포럼 코리아는 ETRI를 중심으 로 국내 산·학·연의 73개 기관회원과 158명의 개인회원이 참여하고있으며, 의장인 이형호 박사(한국전자통신연구원 표준연구센터장)를 중 심으로 국내 정부 지원 IT 핵심 포럼 중에서 가장 활발한 포럼 중의 하나로 성장하였다. 지난 6년 동안 본 포럼은 국내 산·학·연을 중심으로 IPv6 기술 교류및 보급을 통한 기술력 확보 및 기반 조성 노력을 강화해 왔으며, 국제 IPv6 포럼(http://www.ipv6forum.com)과 연계하여 국제 사회에서 우리나라의 위상 제고 노력을 경주해 왔다. 특히, 국내외에서 IPv6의 도입 및 Promotion이 충분히 활성화됨에 따라 IPv6 포럼 코리아는 2005년을 IPv6 관련 포럼 표준화 추진의 원년으로 삼고 효율적인 포 럼표준화 추진을 위하여 새롭게 조직을 정비하고 국내외의 IPv6 관련표준화에 주도적인 역할을 수행하고 있다.

後氷期 氣候變化에 關한 硏究

李亨鎬,權寧植 陸軍士官學校 1983 한국군사학논집 Vol.25 No.-

Following the last glacial maximum at about 18,000 years ago, the continental ice sheets and ice masses in mountainous terrains began to withdraw. This deglaciation process, now completed except in the case of high-altitude and high-latitude glaciers and ice sheets, did not begin everywhere at the same time, nor did it proceed at equal rates, and thus the final melting was not synchronous. The effects of deglaciation as they relate to the level of the sea and its isotopic composition were globally synchronous, even though the melting of the ice proceeded stepwise and occupied thousands of years. Variations in sea-level and O abundance accordingly can be used to trace the history of deglaciation. Because of the variable timing of deglacial, the post glacial interval is of variable length. The last glacial stage ended abruptly in what Broecker and Van Donk referred to as Termination I. This isotopic event is seen as a sharp decrease in O concentration at about 11,000 years ago. Shackleton and Opdyke date it about 13,000 years ago, but Bloom et al. date it between 9,000 and 5.000 years ago. The temperature changes according to the analysis of the tree-ring records tell us the following. 1) 5,500-1,000 B.P.:temperature decreasing irregularly 2) 3,200-2,300 B.P.:lengthy cold spell 3) the last 1,000 years : marked warm interval(especially, around 800 B.P.) The post-glacial sea-level began to rise about at 19,000 B.P. or at 18,000 B. P.,and this rising occurred abruptly until 7,000 B. P. After 7,000 B. P. to recent, the sea-level rising occurred about 15,000 B. P. and about 8,500 B. P. in twice ; 30m rising about 15,000 B. P. and 20m about 8,500 B. P.

ATM 기반의 IMT-2000 교환 기술

이형호,이윤주,강경훈,Lee, Hyeong-Ho,Lee, Yun-Ju,Gang, Gyeong-Hun 대한전자공학회 1998 전자공학회지 Vol.25 No.10

Chinese Hamster Ovary 세포에 있어 Methy Methanesuifonate 에 의해 유발된 DNA 단 사절단과 복제억제와의 관계

이형호,박상대,윤정교,이천복 한국유전학회 1989 Genes & Genomics Vol.11 No.3

DNA single strand breaks and unscheduled DNA synthesis (UDS) were determined in methyl methanesulfonate (MMS)-treated Chinese hamster ovary (CHO) cells. DNA single strand breaks were dose-dependently increased by treatment with MMS. Aphidicolin, a specific inhibitor of DNA polymerase α and δ, did not affect the rates of UDS and single strand breaks induced by MMS. N-ethylmaleimide, a common inhibitor of O^6-methyltransferase, 3-methyladenine glycosylase and DNA polymerase α, inhibited UDS and enforced the accumulation of DNA single strand breaks induced by MMS. Novobiocin and nalidixic acid, inhibitors of topoisomerase II, slightly inhibited MMS and accumulation of DNA single strand breaks induced by MMS. These results indicate that only small portion of alkylated damages was removed, and that DNA single strand breaks were mainly induced not by the process of damage removal but by alkali labile sites in the alkaline condition.

Condom을 이용한 내시경적 위내 바둑알 제거 1예

이형호,송치욱,현진해,황일순,김열홍,류호상 대한소화기내시경학회 1985 Clinical Endoscopy Vol.5 No.1

With remarkable progress in upper GI endoscopy; it has been applied to therapeutid purpose. ln this paper, we present one suceessful case of endoscopic extraction of BADUG STONE by biopsy forceps and contraceytive condom. Using a biopsy forceps and condom inserted through the fiberscope, 'BADUG STONE' was eaaily made to roll into the self-opening 'trawl net' and safly removed.

中國語敎育의 硏究現況과 方向

이형호 중국어문논역학회 2005 中國語文論譯叢刊 Vol.15 No.-

The Authors Reply: Renal Cell Carcinoma in Kidney Transplant Recipients and Dialysis Patients

이형호,한웅규 대한비뇨의학회 2013 Investigative and Clinical Urology Vol.54 No.4

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[텔레콤 광장] IEEE ComSoc APC 활동 소개

이형호 대한전자공학회 1997 텔레콤 Vol.13 No.1

[학술 활동 소개] 전자교환연구회 학술활동 실적 소개

이형호 대한전자공학회 1997 텔레콤 Vol.13 No.1

전자교환연구회는 1979년 창립하여 현재에 이르렀다. 여기에서는 그동안 전자교환연구회를 위해 수고하신 역대 위원장, 전자교환연구회의 기술전문지 발간 실적 및 학술생사 실적 등을 정리하여 소개한다.

Renal Cell Carcinoma in Kidney Transplant Recipients and Dialysis Patients

이형호,최경화,양승철,한웅규 대한비뇨의학회 2012 Investigative and Clinical Urology Vol.53 No.4

Purpose: In a group of surgery patients diagnosed with renal cell cancer, those who underwent dialysis were compared with those who received a kidney transplant. Materials and Methods: The 43 subjects included in this study were patients who had been undergoing dialysis because of end-stage renal disease or had undergone kidney transplantation. The patients were diagnosed with renal cell carcinoma (RCC) during follow-up and underwent radical nephrectomy from May 1996 to December 2010. Their medical records were retrospectively analyzed as part of the study. Results: In the transplantation group, the renal replacement therapy period averaged 54 months, and the period from transplantation to RCC averaged 119 months (range, 0 to 264 months). In the dialysis group, RCC was observed after an average of 124 months (range, 2 to 228 months) of dialysis, and nephrectomy was then conducted. Acquired cystic kidney disease (ACKD) was found more frequently in the dialysis group, and it had a statistically relevant effect on the occurrence of RCC by comparison with the transplantation group (p<0.01). Conclusions: Although the incidence rate of ACKD was significantly higher in the dialysis group among patients undergoing surgery for RCC, cancer was found even without ACKD development in some transplant recipients. Considering that the transplant recipients also underwent dialysis, an informative prospective study will be necessary to determine whether other immunosuppressive agents besides ACKD may function as a cancer risk factor. Purpose: In a group of surgery patients diagnosed with renal cell cancer, those who underwent dialysis were compared with those who received a kidney transplant. Materials and Methods: The 43 subjects included in this study were patients who had been undergoing dialysis because of end-stage renal disease or had undergone kidney transplantation. The patients were diagnosed with renal cell carcinoma (RCC) during follow-up and underwent radical nephrectomy from May 1996 to December 2010. Their medical records were retrospectively analyzed as part of the study. Results: In the transplantation group, the renal replacement therapy period averaged 54 months, and the period from transplantation to RCC averaged 119 months (range, 0 to 264 months). In the dialysis group, RCC was observed after an average of 124 months (range, 2 to 228 months) of dialysis, and nephrectomy was then conducted. Acquired cystic kidney disease (ACKD) was found more frequently in the dialysis group, and it had a statistically relevant effect on the occurrence of RCC by comparison with the transplantation group (p<0.01). Conclusions: Although the incidence rate of ACKD was significantly higher in the dialysis group among patients undergoing surgery for RCC, cancer was found even without ACKD development in some transplant recipients. Considering that the transplant recipients also underwent dialysis, an informative prospective study will be necessary to determine whether other immunosuppressive agents besides ACKD may function as a cancer risk factor.