Comparison of the Crystallization Behavior of Silica Between Mg and Al‑Phosphate Used in Tension Coatings of Grain‑Oriented Electrical Steel

Hyung‑Ki Park,Min‑Soo Han,Chang‑Hwan Chang,Jong‑Tae Park,박창수,Hyung‑Don Joo 대한금속·재료학회 2020 METALS AND MATERIALS International Vol.26 No.3

The effect of the phosphate component on the thermal stability of tension coatings was investigated with a focus on thecrystallization behavior of amorphous silica in the tension coating. After stress-relief annealing, core loss of samples coatedwith a Mg-phosphate was improved, while that coated with an Al-phosphate was deteriorated. The domain wall spacing ofthe samples coated with Mg- and Al-phosphates was respectively increased and decreased after stress relief annealing. Thismeans that the stress relief annealing did not much diminish the tensile stress for Mg-phosphate coating but much diminishedthe tensile stress for Al-phosphate coating. Based on FTIR and XRD results, we found that the crystallization temperatureof silica with Al-phosphate was lower than that of silica with Mg-phosphate. The crystallization of silica was accompaniedby an abrupt volume change, which formed cracks in the tension coating and deteriorated the tensile stress.

重化學工業機械의 國産化方案에 關한 硏究 : 特히 窯業에 있어서의 燒成爐, 粉碎機, 排風機, 冷却機, 電氣集마器 自動枰量供給器 等의 製作을 目的으로

趙哲衡,朴碩喆,丁太權,宋鐵,桭達福,金基玉,朴煥奎,趙煥從,朴善鐘,金種一,李茂錫 朝鮮大學校 1977 綜合論文集 Vol.1977 No.-

This is to investigate the posibility of home manufacturing of heavy chemical industry machines, such as rotary kiln, crusher, blower, cooler, electrostatic precipitator and weighing feeder of cement plant. It is concluded that even though we can not make all of them (some of them are made now and some others are going to be made in the near future, some of them are made whole and some others are made partially), we can build or export the cement plant by importing the important machines which we can not make now and by substituting them with ours gradually.

악성 점막하 종양과의 구별이 어려웠던 Gastritis Cystica Profunda 1예

선제형,박진석,한민석,김수항,김우진,박인형,이숭,유종선,박찬국 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.3

Gastritis cystica profunda (GCP) is a rare disease characterized by gastric foveolae elongation along with hyperplasia and cystic dilatation of the gastric glands extending into the tissue beneath the submucosa. GCP mainly develops at the gastroenterostomy stoma but can arise in a stomach that has not undergone surgery. The proposed pathogenesis is related to chronic inflammation, ischemia and the presence of a foreign body. GCP may present as a submucosal tumor, Polyp or a giant gastric mucosal fold. Endoscopic ultrasonography (EUS) is an effective diagnostic method for differentiating GCP from protruding and elevated gastric lesions. We report a case of GCP along with the endoscopic and EUS findings that were indistinguishable from a malignant submucosal tumor.

40세 이하 관상동맥 질환자에서 장기적 임상 관찰

이승욱,정명호,박종철,박형욱,조상희,김원,김계훈,이상현,강경태,조장현,김남호,김건형,안영근,조정관,박종춘,강정채 全南大醫大 2001 전남의대학술지 Vol.37 No.2

Slide Session : OS-IFD-07 ; Infectious Disease : In Vitro Antiviral Activity of Ribavirin Against Severe Fever with Thrombocytopenia Syndrome Virus

( Myung Jin Lee ),( Kye Hyung Kim ),( Jong Youn Yi ),( Su Jin Choi ),( Chung Jong Kim ),( Nak Hyun Kim ),( Kyoung Ho Song ),( Pyoeng Gyun Choi ),( Ji Hwan Bang ),( Wan Beom Park ),( Eu Suk Kim ),( San 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

In Vitro Antiviral Activity of Ribavirin Against Severe Fever with Thrombocytopenia Syndrome Virus Myung Jin LEE1, Kye-Hyung KIM1, Jongyoun YI2, SuJin CHOI1, Chung-Jong KIM1, Nak- Hyun KIM1, Kyoung-Ho SONG1, Pyoeng Gyun CHOI1, Ji-Hwan BANG1, Wan Beom PARK1, Eu Suk KIM1, Sang-Won PARK1, Hong Bin KIM1, Nam Joong KIM1, Myoung- Don OH1 Seoul National University College of Medicine, Korea1, Pusan National University School of Medicine, Korea2 Background: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by a novel Bunyavirus, severe fever with thrombocytopenia syndrome virus (SFTSV). No effective antiviral therapy is proven yet, but clinical use of ribavirin (RBV) has been tried. We investigated the antiviral effect of RBV against SFTSV in vitro. Methods: To test for cytotoxicity of RBV, Vero cells were treated with different concentrations of RBV (3.90 to 500 μg/mL, two-fold dilution) and analyzed by cell viability MTS assay 48h post-infection. To determine antiviral activity of RBV against SFTSV, Vero cells were infected with SFTSV strain Gangwon/Korea/2012 at 100 TCID50 (50% tissue culture infective dose) per well in a 96-well plate, and RBV was added at the concentrations showing no or minimal cytotoxicity. Viral RNAs were extracted from the culture supernatants and quantifi ed using one-step real-time reverse transcription- PCR to amplify the partial large segment of SFTSV. Statistical analysis was done by one-way ANOVA with Tukey`s post hoc test. Results: Cytotoxicity due to RBV was not observed at RBV concentration =31.3 μg/ mL. Viral RNAs at 24h post-RBV treatment were reduced with increasing RBV concentrations (1-32 μg/mL), compared with those of mock-treated cells (P <0.01, Figure). Half maximal inhibitory concentration (IC50) of RBV was 3.69 μg/mL at 24h post-RBV treatment. Conclusions: Our study shows that RBV has antiviral effect against SFTSV in a dose-dependent manner. Further studies are required to evaluate the effi cacy of RBV in SFTS.

한의진단명과 진단요건의 표준화 연구 III : 3차년도 연구결과 보고

최선미,양기상,최승훈,박경모,박종현,심범상,김성우,노석선,이인선,정진홍,이진용,김달래,임형호,김윤범,박성식,송태원,김종우,이승기,최윤정,신순식 한국한의학연구원 1997 한국한의학연구원논문집 Vol.3 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the third year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows : - analyzing and differentiating of epidemic febrile disease - analyzing and differentiating in accordance with the Sasang constitution medicine based on four-type recognition - differentiation of disease according to pathological changes of Chong and Ren channels - standards for diagnosis of women's disease - standards for diagnosis of children's disease - standards for diagnosis of motor and sensor disturbance (-muscle. born, joint, etc.) - standards for diagnosis of neuropsychiatric disease - standards for diagnosis of five sense organ disease - standards for diagnosis of external disease The indivisual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name, notion of diagnosis pattern, index of differentiation of symptoms and signs, the main point of diagnosis, analysis of diagnosis pattern, discrimination of diagnosis pattern, prognosis, a way of curing a disease, prescription, herbs in common use, disease appearing the diagnosis pattern, documents. The standards for diagnosis of each disease was arranged by the diagnostic requirements in the following order : another name, notion of disease, the main point of diagnosis, analyzing and differentiating of disease, analysis of disease, discrimination of disease, prognosis, a way of curing and prescription of disease, disease in western medicine appearing the disease in oriental medicine, documents.

악관절 내장증 환자의 수술후 두통의 변화

허종기,김기영,박광호,김형곤 大韓顎顔面成形再建外科學會 1998 Maxillofacial Plastic Reconstructive Surgery Vol.20 No.1

철근 콘크리트 연속 유공 깊은 보의 전단내력에 관한 해석적 연구

박우진,이종권,이리형 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

The purpose of this report is investigation of shear behaviors of the deep beam through non-lineal Finite Element Method based on experimental results of continuous deep with opening. Optimum condition for analysis was selected by means of adopting various material property as variables, and additional models including different position of opening selected as variables was simulated. Also experimental result was calibrated by two formula suggested by AIJ and CIRIA, considering effect of opening in the continuous deep beams. As a result of calibration, it is possibly estimated that shear strength formula suggested by AIJ(the Architectural Institute of Japan) can be also adopted as formula for continuous beam. It is expected that results of this research which evaluated shear behavior of the continuous deep beam through non-lineal Finite Element Method can be applied data for reinforcement in the vicinity of opening in the continuous deep beams.

건설공사의 안전투자비에 대한 효과 분석

박종근,노민래,이관형 한국안전학회 2004 한국안전학회지 Vol.19 No.4

This study delivers the actual condition of investment for industrial accident prevention based on survey of 500 construction sites from "reports for industry safety and health" published by Korea Occupational Safety & Health Agency (KOSHA). The various research techniques were used such as technical statistic analysis for construction industry, cost comparison of industrial accident prevention and accident loss. A formula was deduced to calculate accident loss and accident frequency by accident prevention cost through regression analysis.

서울 周邊 農村地域 婦人의 姙娠 出産에 對한 知識 態度 및 實踐에 關한 硏究

朴亨鍾 서울大學校 保健大學院 1968 公衆保健雜誌 Vol.5 No.2

This survey was carried out by the author concerning 480 pregnant women residing in rural areas near Seoul City on knowledge, attitude and practice in relation to pregnancy and delivery during the period from September 2, 1968 to September 30, 1968. This study revealed as follows: 1. The number of pregnancies: Those women who had become pregnant 3 times occupied the top rate with 20.2%, followed by 4 times with 18.7%. Average for the whole is 3.5 times. 2. The month of pregnancy : The women who had been pregnant for 8 months occupied the highest percentage with 17.3%, which was followed by those women who had been pregnant for 9 months (16.7%) and 9 months and more(14.8%). 3. The symptoms they experienced with pregnancy : Most pregnant women(95.0%) had nausea, 77.1% of them vomitted, 74.2% were dizzy, 43.5% had poor appetite. 4. About one seventh(14.5%) of the pregnant women utilized medical facilities (hospital or eguivalent degree of care) more than once. Concerning the time of the first visit, women who had pregnant for 9 months or more comprised 22.9% (highest rate), followed by 8 months with 20.0%. 5. The main motives for visiting medical institutions were abnormal feeling with pregnancy(60.0%) or advice by health center workers (15.7%). 6. The main reasons why they do not utilize medical institutions: They didn't feel any sickness(47.5%) and had no money(16.6%). 7. About two third(66.2%) of pregnant women told that they wanted to be pregnant. 8. To get male or female, 86.3% of the women had done nothing out of the ordinary, but 6.2% of them visited the Buddhist temple for prayer. 9. The main reasons for them not to want pregnancy were economic difficulties with 46.8% and too many children aleady with 18.6%. 10. The pregnant women who know the period of conception occupied 74.4% of the total. 11. The most women (81.8%) had delivery at their own homes and 9.0% of the women at their mother's homes. 12. In regard to delivery cost, 69.4% of the women spent no money at all, and 17.8% of the wome paid 500 won or less. 13. The women who were assisted by their mothers in law at delivery occupied 29.8% of the total, and by neighbors are followed with 18.9%. 14. As a method of cutting placenta, the use of scissors occupied the highest rate with 77.9% (72.9% are not disinfected), the second is the knife with 9.1%, and the third is sickle with 6.7%. 15. As a delivery quilt, a cement bag was used most with 52.2%, oil paper or news paper followed with 19.7%. 16. For the disposal of placenta, 85.0% of the women burned it and 7.6% of them buried the placenta under the ground. 17. Out of the total delivery, 77.8% of them took normal process. 18. Regarding the length of the period that pregnant women wanted for rest before delivery, 5∼6 days was most desirable with 36.3%, which followed by 3∼4 days with 23.2%. 19. Regarding the length of the period that pregnant women wanted for rest after delivery, 13∼15 days was most desirable with 21.7%, which was followed by 10∼12 days with 17.3%, and the average was 14.2 days. 20. The main reasons why they couldn't have rest as they wanted was due to kitchen works (57.9%) and farming (33.7%). 21. The most of the women (93.2%) took the seaweed(mee-yok) soup after delivery, which was followed by the bean paste soup (2.0%) and soup with fish(1.8%). 22. It was said that the most desirable length of the period during which the special care is necessary for food after delivery was 10∼12 days (20.5%) which was followed by 7∼9 days with 16.1%. The average was 10.8 days. 23. The main reasons why they take the food as mentioned were by habits (48.0%) and advices by neighbors(36.2%).