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No‑hoon Kim,Woong Gil,Heui‑dae Lim,Chang‑hyeon Choi,Hae‑woo Lee 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.1
This study investigates the effect of the Mo content on the mechanical and corrosion properties of hyper duplex stainless-steelwelds that are subjected to flux cored arc welding (FCAW). Conventional hyper duplex stainless steel has limited productivityowing to the welding position and welding equipment of gas tungsten arc welding (GTAW) and submerged arc welding(SAW). As such, the purpose of this study is to develop a weld material for FCAW, which is not subject to the limitations ofGTAW and SAW, as well as to improve productivity and quality. FCAW was performed under the same conditions, exceptfor the Mo content, which were varied to 3, 4.5, and 6 wt%. Tensile and impact tests were carried out to investigate thevariation of the mechanical properties according to the Mo content. As the Mo content increased, the elongation decreasedand the strength increased. It was confirmed that the δ-ferrite phase increased and the γ-austenite phase decreased as theMo content increased. Secondary phase such as σ phase, χ phase were mainly distributed in ferrite grains or austenite–ferritegrain boundaries using EBSD. It was also increased as the Mo content increased. To evaluate the corrosion resistance,Potentiodynamic Polarization Tests and DL-EPR tests were conducted. As a result, all of specimens showed similar corrosionresistance.
金正濟,宋在鉉,朴魯植,李昌憶 울산대학교 1978 연구논문집 Vol.9 No.2
現在 大學 初級學年의 造船工學 敎育에 있어서 배의 船型, 線圖 및 Off-Set Table을 理解시키는데 상당한 時間을 소비하고 있다. 이 問題를 解決하기 위하여 船體를 各各 Water Line 斷面, Buttock Line 斷面 및 Station Line 斷面으로 분리할 수 있는 3척의 小型 木製 模型船을 製作 하였다. In elementary course of Naval Architecture at University or College, instructers, at present, spend considerably long time to make students understand the concept and relationship among hull form, lines and off-set table. In order to solve this problem, the Author along with the associates have manufactured three wooden ship hull form models that are separable at Water line section. Buttock line section and Station line section respectively.
강선희,김미련,김선자,김현옥,노복자,이기화,이정숙 曉星女子大學校 藥學大學 學生會 1988 曉星藥誌 Vol.4 No.-
2, 3; 5,6-di-O-isopropylidene-α-D -mannofuranose(ManA) were oxidized to their cor-responding 2, 3;5,6-di-O-isoprolylidene-α-D-manno-1.4-lactone(ManB) using calcium chlorite as oxidant in a phase transfer catalysis system. But identified results were not obvious. V_2O_5 catalzed oxidation of primary and secondary alcohols to aldehydes and ketones respectively at alkali conditions under Solod-Liquid phase transfer conditions. This reaction affords good overall yields of products without formation of undersirable.
MAS를 이용한 줄무늬잎마름병 저항성 조생종 벼 ‘해담쌀’ 개발
이종희(Jong-Hee Lee),조준현(Jun-Hyeon Cho),이지윤(Ji-Yoon Lee),오성환(Seong-Hwan Oh),김춘송(Choon-Song Kim),박노봉(No-Bong Park),황운하(Un-Hwa Hwang),송유천(You-Chun Song),박동수(Dong-Soo Park),여운상(Un-Sang Yeo) 한국육종학회 2019 한국육종학회지 Vol.51 No.4
‘Haedamssal’ is an early maturing and rice stripe virus disease-resistant cultivar adaptable for early-transplanting cultivation that was developed by the rice breeding team of the Department of Southern Crop, NICS, RDA, in 2014. This cultivar was derived from the cross YR25869 (YR21247-B-B-B-49-1/Sasanishiki BL4//Koshihikari) and YR25868 (Unkwang//YR21247-B-B-B-49-1/Sasanishiki BL4) made in the 2005/2006 winter season and was advanced to the F5 generation by a bulk breeding method using rapid generation advance. To incorporate rice stripe virus resistance, marker-assisted selection on the RSV gene was conducted in 3-way and 6-way cross F1 generation using the tightly linked marker RM6897. From testing in the replicated yield trial in 2011, a promising line YR26258-B-B-B-33-3 was selected and it was designated as ‘Milyang276’. A local adaptability test of ‘Milyang276’ was performed at three locations from 2012 to 2014 and it was named as ‘Haedamssal’, which was a good eating quality variety. The culm length was 67 cm in yield trials, which was 4 cm shorter than ‘Jopyeong’. The number of spikelets per panicle was lower than ‘Jopyeong’, whereas the number of tillers per hill was higher. This variety was resistant to RSV disease, bacterial blight, and leaf blast disease. The milled rice yield of ‘Haedamssal’ was 5.48 MT per ha at the early transplanting in the local adaptability test. ‘Haedamssal’ is well adapted to early transplanting cultivation in the southern plain area (Registration No. 6811).
송민정,송혁,이태강,기노갑,박현구,김선우 대한건축학회 2004 대한건축학회논문집 Vol.20 No.5
The "Sound Classification System on Floor Impact Sound Insulation Performance" is being studied in Korea. For that study, vocabularies appropriate for evaluation and reporting are needed. In this study, adequate words for evaluating floor impact sound have been extracted by reviewing the existing vocabularies and augmenting this with the results of a questionnaire prepared especially for apartment dwellers. As a result of this study, followings are suggested. 1) The heavy impact sound sources are more highly ranked than light impact ones. And the louder sound sources are the more accumulated points. 2) Highly ranked vocabularies are different for each source. 3) Floor impact sound evaluating words such as ‘Annoying’, ‘Disagreeable’, ‘Strident’, ‘Disturbed’, and ‘Dissonant’ are highly ranked. ‘Annoying’ is the word most accurately expressing the subjects' unpleasant feeling of domestic floor impact noise. 4)‘Unpleasant’, ‘Noisy’, ‘Irritating’, ‘Annoying’ are main unpleasant factors to floor impact sounds occurring in our domestic apartment houses.
중심압축력을 받는 高强度 RC기둥의 띠철근 配筋形態에 關한 實驗的 硏究
이영인,이영호,곽노현,정헌수 중앙대학교 기술과학연구소 1998 기술과학연구소 논문집 Vol.28 No.-
An objective of this study is to experimentally investigate the strength and ductility of reinforced concrete columns under uniaxial load and several test variables. To do this, we have conducted tests on twelve 20×20×60cm specimens with 8 and 12 longitudinal steel bars subjected to monotonic uniaxial compression. The main variables considered in this test are the configuration of ties, the strength of concrete, and the space of ties. The results indicate that the strength and the ductility of reinforced concrete columns have been influenced on the configuration of ties, the space of ties, and the strength of concrete.
포스터 발표 : 포스터 연제 ; Thin Glomerular Basement Membrane Nephropathy를 동반한 Nutcracker 증후군 1예
노현정 ( No Hyeon Jeong ),유태현 ( Yu Tae Hyeon ),류동렬 ( Lyu Dong Lyeol ),황재하 ( Hwang Jae Ha ),송현용 ( Song Hyeon Yong ),신석균 ( Sin Seog Gyun ),노현진 ( No Hyeon Jin ),최규헌 ( Choe Gyu Heon ),이호영 ( Lee Ho Yeong ),한대 대한신장학회 1999 춘계학술대회 초록집 Vol.18 No.2
Prostatic Cancer Presenting as an Isolated Large Lung Mass
No, Hee-Sun,Lee, Jong-Hwan,Ahn, Young,Na, Im-Il,Kim, Hye-Ryoun,Kim, Cheol-Hyeon,Koh, Jae-Soo,Lee, Jae-Cheol The Korean Academy of Tuberculosis and Respiratory 2010 Tuberculosis and Respiratory Diseases Vol.68 No.5
A hidden primary tumor presenting as an isolated lung mass is a diagnostic challenge to physicians because the diagnosis of lung cancer is likely to be made if the histologic findings are not inconsistent with lung cancer. A large lung mass was found incidentally in a 59-year-old man. Although adenocarcinoma was diagnosed by percutaneous needle biopsy, thyroid transcription factor-1 (TTF-1) immunostaining was negative, raising suspicion that there was another primary site. There was no abnormal finding except for the lung mass on a $^{18}FDG$-PET/CT scan and the patient did not complain of any discomfort. Finally, prostatic cancer was confirmed through the study of tumor markers and prostate-specific antigen (PSA) immunostaining. Because of the rare presentation of a single lung mass in malignancies that have another primary site, physicians should carefully review all data before making a final diagnosis of lung cancer.