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고로슬래그시멘트를 사용한 다공성 황토콘크리트의 성능 평가
김황희,강수만,박종식,박상우,전지홍,이진형,차상선,박찬기,Kim, Hwang-Hee,Kang, Su-Man,Park, Jong-Sik,Park, Sang-Woo,Jeon, Ji-Hong,Lee, Jin-Hyung,Cha, Sang-Sun,Park, Chan-Gi 한국농공학회 2010 한국농공학회논문집 Vol.52 No.3
This study aims to evaluate a porous concrete using hwang-toh, blast furnace slag and blast furnace slag (BFS) cement instead of type I cement. The tests that were carried out to analysis the properties of porous hwang-toh BFS cement concrete included compressive strength, continuous void ratio, absorption rate, and pH value, repeated freezing and thawing test were conducted. Test results indicated that the performance in porous hwang-toh concrete are effective on the kaoline based binder materials. The pH value were shown in about 9.5 ~ 8.5. The compressive strength was increased and void ratio was decreased with increasing the kaoline based binder materials, respectively. The void ratio and compressive strength were in the range of about 21 ~ 30 %, 8 ~ 13 MPa, respectively. The increased in void ratio of more than 25 % is showed to reduce the resistance of repeated freezing and thawing. Also, the resistance of repeated freezing of thawing and the compressive strength of porous hwang-toh BFS cement concrete are independent with hwang-toh content and BFS cement amount. But, the void ratio was decreased with increasing the high volume hwang-toh contents (more than 15 %).
Hwang,Suk-Hui,Kim,Jong-Jin 한국주거환경학회 2012 주거환경(한국주거환경학회논문집) Vol.10 No.3
전통(재래)시장의 침체는 단순히 열악한 물리적환경과 소비자들의 소비형태의 변화만이 아니라 사회적, 물리적, 경제적, 문화적, 환경적부문의 쇠퇴가 함께 진행되면서 나타난 현상이라고 할 수 있다. 본 연구는 다양한 쇠퇴측면에서 접근하는 다계층 의사결정모형(AHP)을 구축하여 전통시장의 침체요인에 기반을 둔 활성화 방안을 도출하고자 하였다. 연구결과 전문가들은 소비자들의 유입을 통하여 시장 및 상인에게 경제적으로 도움이 될 수 있는 지원방안과 상가 및 상인들의 역량을 강화시키는 것이 전통시장 활성화에 큰 도움을 줄 것으로 인식하고 있었다. 세부적으로는, 전문가들은 현재 부분적으로 시행하고 있는 전통시장 상품권인 온누리상품권 유통확대, 전통시장의 통합적 운영조직 구성, 공동마케팅 운영, 셔틀버스의 운행을 통한 접근성 향상과 수변공간과 쉼터 등을 조성하여 쇼핑 환경을 향상시키는 것이 중요하다고 인식하고 있는 것으로 나타났다. 반면에 정부와 지방자치단체가 중점적으로 지원해온 문화적 측면의 재생방안 및 아케이드 설치, 보행로 정비등 물리적재생은 전통시장의 활성화에 큰 도움이 되지 않는 것으로 인식하고 있다. 따라서 전통시장의 효율적 활성화를 위해서는 상인역량강화 및 경제적재생 측면의 활성화를 중심으로 하는 방향으로의 전환이 필요한 것으로 나타났다.
The Long-term Effects of Awareness on the L2 Acquisition of the English Passive
Jong-Bai Hwang,Haengku Kang,Moon-Sub Han 한국외국어교육학회 2008 Foreign languages education Vol.15 No.3
This study is a follow-up of Hwang's (2007) empirical study, which investigated the role of awareness in Korean high school students' subsequent learning of the English passive. Hwang (2007) found the positive relationship between awareness and subsequent processing of the target structure and claimed the crucial role of awareness in successful second language learning. The present study explores whether the effects of awareness retain six months after the first post-exposure task of Hwang (2007), which was performed one day after the instruction. The results of the present study revealed the retention of the effects of awareness in the written production task as well as in the multiple-choice recognition task. However, no significant differences were found between the passive group, who were consciously aware of the target structure through a reading text and brief explanation about the English passive, and the preposition group whose attention could be implicitly drawn to the target structure through the reading text only. The results cannot fully support Schmidt's noticing hypothesis and can also be interpreted as providing evidence for the dissociation claim that L2 learning can take place implicitly without conscious awareness.
Recombinant canstatin inhibits angiopoietin‐1‐induced angiogenesis and lymphangiogenesis
Hwang‐,Bo, Jeon,Yoo, Ki Hyun,Park, Jong‐,Hwa,Jeong, Han‐,Sin,Chung, In Sik Wiley Subscription Services, Inc., A Wiley Company 2012 International journal of cancer: Journal internati Vol.131 No.2
<P><B>Abstract</B></P><P>We describe the effect of recombinant canstatin, the NC1 domain of the α2 chain of Type IV collagen, on suppression of angiogenesis and lymphangiogenesis both <I>in vitro</I> and <I>in vivo</I>. Recombinant canstatin produced from stably transformed <I>Drosophila</I> S2 cells reduced the expression of angiopoietin‐1 in hypoxia mimetic agent, CoCl<SUB>2</SUB>‐treated CT‐26 cells. Recombinant canstatin inhibited proliferation, tube formation and migration of human angiopoietin‐1 (rhAngpt‐1)‐treated human umbilical vein endothelial cells (HUVEC) and lymphatic endothelial cells (LEC). Recombinant canstatin suppressed the expression of Tie‐2 and vascular endothelial growth factor‐3 (VEGFR‐3) transcripts in rhAngpt‐1‐treated HUVEC and LEC, respectively. The inhibitory effect of recombinant canstatin on tumor growth was also investigated using a heterotopic CT‐26 colon carcinoma animal (BALB/c mice) model. Recombinant canstatin reduced the final volume and weight of tumors, and blood and lymphatic vessel densities of tumors, which were evaluated by CD‐31 and LYVE‐1 immunostaining. Immunohistochemical analysis showed that recombinant canstatin dramatically reduced the expression of angiopoietin‐1 in CT‐26 colon carcinoma‐induced tumor, but not the expression of VEGF‐C. Tie‐2 and VEGFR‐3 expressions were also reduced in recombinant canstatin‐treated tumors. These results indicate that recombinant canstatin has anti‐tumoral activities against CT‐26 colon carcinoma cells. Recombinant canstatin reduces the expression of angiopoietin‐1 in hypoxia‐induced CT‐26 cells and inhibits the angiogenic and lymphangiogenic signaling induced by angiopoietin‐1. Recombinant canstatin probably inhibits angiogenesis and lymphangiogenesis <I>via</I> suppression of the integrin‐dependent FAK signaling induced by angiopoietin‐1/Tie‐2 and/or VEGFR‐3.</P>
虹彩 體質 分析에서 心腎結合組織의 虛弱 體質과 高血壓 家族歷과 관련성 硏究
金鐘牛,黃祐準,琴坰樹,李始炯,李宗淳,都金錄,趙在運,趙州掌,金鐘煜 한국전통의학연구소 2002 한국전통의학지 Vol.12 No.1
Iridology, developed more than 100 years ago, is the diagnosis of medical conditions through noting irregularities of the pigmentation in the iris The purpose of this study is to compare interrelation between CVA, hypertension family history and cardio-renal connective tissue in Iris Constitution through iris constitution examination. The subjects consist of 114 patients who were examined in Iris Constitution at Chonju Oriental Medicine Hospital attached to Wonkwang Univ. from September. 1St. 2000 to August. 31th. 2002. 1. In the distribution of Iris Constitution, among of 79cases, There are neurogenic type 13cases, abdominal connective tissue weakness constitution 31 cases, cardio-renal connective tissue weakness constitution 6 cases, cholesterol 7 cases and others 22 case in control group. 2. There are familial history of CVA and hypertention 32 cases, no familial history of CVA and hypertention1 3 cases, in 35cases of experimental group. These results imply that there is meaningfulness of interrelation between cardio-renal connective tissue weakness constitution and. CVA, hypertention.
황원주 ( Hwang Won Ju ),김종우 ( Kim Jong Woo ),하상수 ( Ha Sang Su ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.2
The purpose of this experimental study is to increase the strength of mortar mixed with activated Hwang-Toh (AHT) and granulated blast furnace slag (GGBS) as a compound for the development of eco-friendly concrete. The compressive strength test was carried out by making mortar specimens with a certain ratio of AHT and GGBS. The percentage of AHT were at 30% and 50% and the GGBS were a 40% and 50% as Major variables. The results of this study showed that for specimens with percentage of AHT at 30% with GGBS increased above the strength of the mortar without the binding. However, the compressive strength of experimentation with percentage of AHT at 50% with partially replace GGBS has decreased by more than the mortar without the binding. Therefore, further study is deemed necessary.
김종우 ( Kim Jong Woo ),황원주 ( Hwang Won Ju ),하상수 ( Ha Sang Soo ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.2
The purpose of this study is to compare the compression strength of gypsum substituted mortar with that of mortar. After replacing the cement with the loess, a portion of the remaining cement was replaced with gypsum to make specimens. When the gypsum is replaced, the strength of all the specimens is lower than that of the standard specimen. It is necessary to use a long-term strength mixed material to replace this.
원위 대퇴골의 고립성 골연골종에서 발생한 속발성 연골 육종 1례 보고
정필현,황장수,강석,김용민,오형호,채동주,김종필 동국대학교 경주대학 1996 東國論集 Vol.15 No.-
연골육종은 비교적 서서히 자라며 늦게 전이하는 악성 연골 종양으로 알려져 있다. 골 연골종에서 발생한 속발성 연골육종은 발생빈도는 드물며 타부위로의 전이가 적고 악성도가 낮은 경우가 많아 적합한 수술적 치료로서 좋은 예후를 보이는 것으로 보고되고 있다. 본 동국대학교 정형외과학 교실에서는 우측 대퇴골 원위부 골간단부에 생긴 고립성 골 연골종에서 이차적으로 발생한 연골육종을 치험한 바 문헌고찰과 함께 보고하는 바이다. A case of Secondary Chondrosarcoma Arising from Solitary Osteochondroma of the Distal Femur Department of Orthopaedic Surgery, College of Medicine, DongGuk University Phil Hyun Chung M.D., Jung Su Hwang M.D., Suk Kang M.D., Yang Mln Kim M.D., Hyung Ho Oh M.D., Dong Ju Chae M.D., Jong Pil Kim M.D. Chondrpsarcoma is a malignant cartilage-forming tumor that grows slowly and metastasis of this tumor occurs in late stage. Secondary chondrosarcomas arising from a solitary osteocartilaginous exostosis are rare and those have a better prognosis than other chondrosarcomas, and they rarely metastasize. We present our experience with a case of secondary chondrpsarcoma arising in solitary osteochondroma of distal metaphysis of right femur with clinical details.
서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.