Distribution of Bi–MnS Inclusions Existing in 1215MS Steels: Correlation with Thermal Physical Coefficient

Jian‑bo Xie,Bei‑bei Liu,Xiang‑yu Wu,Jian‑xun Fu 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.5

This work aims to comprehensively summarize the types and distribution of the isolated Bi particles and MnS inclusions inthe Bi-bearing steels, to study the precipitated behavior of sulfide, and to study the effect of Bi particles on grain sizes andthe volume thermal expansion coefficients of the steels. Results show that the average percentage of the isolated Bi particles,semi-encapsulation, complete encapsulation, back-bridge, tiny encapsulation, cavity bridge Bi–MnS inclusions in the Bibearingsteels was 16.89%, 20.49%, 3.44%, 16.89%, 31.63%, 10.66%, respectively. The average equivalent diameters of thegrains in the 0 ppm, 130 ppm, 240 ppm, 760 ppm, 1200 ppm and 2300 ppm Bi content steels were 20.88, 20.17, 19.54, 18.13,13.98 and 13.25 μm, respectively. The precipitated equilibrium mass concentration product of the MnS (w[Mn]·w[S]) wascalculated to be 1.07, and the solid fraction fS value was 0.61. At 950 °C, the volume thermal expansion coefficient change(ΔVE) in 760 ppm Bi content steel was minimum 4 × 10–10%, while at 461.6 °C the ΔVE was maximum, 0.09%, which meansthat Bi affected the volume thermal expansion of the steel strongest in this temperature range.

Enhancement of Impurity, Machinability and Mechanical Properties in Te-Treated 0Cr18Ni9 Steel

Jian‑bo Xie,Tian Fan,Han Sun,Zhi‑qi Zeng,Jian‑xun Fu 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.6

To enhance the machinability and mechanical properties of 0Cr18Ni9 steel, free-machining element Te was introduced inthis work. By adding various quantities of Te to steel, several machining and tensile tests were carried out. Results show thatwith Te addition of 530 ppm, the number of inclusion sizes below 1 μm disappeared. With raising Te from 360 to 530 ppm,more MnTe–MnS inclusions of 10–40 μm were in spherical shape; above 50 μm2, the ratio of inclusion area at 530 ppmwas greatest among all, and the large-sized inclusions occupied a larger share. Te addition contributed to the surfaces ofmachining steels more smooth. The ultimate tensile strength of steel increased from 399 to 435 MPa. Te resulted in growthof sulfides and improved the machinability of steel.

Department of Bioengineering

Jian?He Xu 한국생물공학회 2010 한국생물공학회 학술대회 Vol.2010 No.10

장류와 고나트륨 한식 대표 음식의 나트륨 함량 및 염도 저감화 기준치 개발

JIANGLIN,신은경,서정숙,이연경 한국영양학회 2019 Journal of Nutrition and Health Vol.52 No.2

Purpose: This study was conducted to develop standards for the salinity and sodium content in representative Korean foods high in sodium. Methods: A total of 600 foods from four seasonings (soy sauce, soybean paste, red pepper paste, and ssamjang) and 16 representative Korean foods high in sodium were collected from 10 households, 10 industry foodservice establishments, and 10 Korean restaurants in 10 cities nationwide and analyzed for their salinity and sodium content. Based on the findings, the standards with a 20% ~ 30% reduced sodium content and salinity from the current level were presented. Results: The suggested standards of salinity (and sodium content per 100 g) were less than 12% (4,500 mg) for soy sauce, 9% (3,500 mg) for soybean paste, 5% (2,000 mg) for red pepper paste, and 6% (2,500 mg) for ssamjang. The reduced standards of salinity for soups were suggested to less than 0.5% for clear soup and 0.7% for soybean paste soup, while for broths, it was 0.6% for clear broth and 0.7% for other broths. The standards of salinity for stews were suggested to less than 0.8% for soybean paste stew, 0.6% for other stews, 0.9% for steamed and stir-fried fish dishes, 1.0% for braised dishes, 4.0% for stir-fried dried fishes, 1.3% for other braised dishes including vegetables, and 1.5% for pickled vegetables and kimchi. Conclusion: Standards for the sodium content and salinity were suggested to reduce the sodium level in fermented soybean sauces and representative Korean high sodium dishes by 20% from the current levels. Nevertheless, it will be necessary to adjust the standards properly to reduce the sodium content and salinity further by considering the future status of sodium intake.

Life history responses of the cabbage beetle Colaphellus bowringi to temperature change

Jian‐Jun Tang,Hai-Min HE,Ting GENG,Shu FU,Fang-Sen XUE 한국곤충학회 2016 Entomological Research Vol.46 No.6

Temperature is considered one of the most important mediators of phenotypic plasticity in ectotherms. Here, we investigated life history traits of the cabbage beetle, Colaphellus bowringi Baly (Coleoptera: Chrysomelidae), at a wide range of temperatures (16, 19, 22, 24, 26 and 28°C). The larval and pupal times were significantly decreased with increasing rearing temperature and growth rate was positively correlated with temperature. However, the relationship between body size and rearing temperature in C. bowringi did not follow the temperature–size rule; both males and females reached the highest body weight at 19°C. Females were significantly larger than males at all temperatures. Male pupae lost significantly more weight at metamorphosis compared to females. However, diapausing males gained significantly higher weight after feeding compared to diapausing females at higher temperatures of 22, 24, 26 and 28°C. Body weight tended to decrease with increasing rearing temperature, whereas sexual size dimorphism (SSD) tended to increase with increasing rearing temperature; thus, Rensch's rule is upheld. The degree to which SSD changed with temperature varied with different development stages. SSD was lowest in pupae, highest in newly emerged adults and intermediate in diapausing adults.

미용학과 유학생의 여가활동과 대학몰입의 관계에서 자아존중감의 매개효과

JIANGJINYI,박은준 한국미용학회 2020 한국미용학회지 Vol.26 No.2

It studied mediated effect of self-esteem in the relation between leisure activity and college immersion of foreign students of beauty department so that they adapt to school life while the number of foreign students has increased in beauty major. It surveyed 315 foreign students who study at the department of beauty to understand their general characteristics, leisure activity, self-esteem and college immersion with questionnaires. It used SPSS 22.0 for frequency analysis, factor analysis, reliance analysis, multiple regression analysis and hierarchical analysis. Leisure activity includes three factors such as self development, personal relation and emotional stability. There is one factor in self esteem. College immersion includes two factors such as academic immersion and relation immersion. It tries to provide practical data that are necessary for efficient management and stable college life of foreign students through the effect of leisure activity on self esteem, the effect of self esteem on college immersion, the effect of leisure activity on college immersion and the result of mediated effect of self esteem in the relation between leisure activity and college immersion.

Interleaved Coding for Hybrid DS/SFH-SSMA over Indoor Radio Channels

JiangzhouWang 에스케이텔레콤 (주) 1995 Telecommunications Review Vol.5 No.6

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인격형성에 관한 공자의 교육방법 고찰 : 예악(禮樂)교육의 미육(美育)적 특징을 중심으로

JIANGYINGSHUN,신창호 한서대학교 동양고전연구소 2020 동방학 Vol.0 No.43

본 연구는 중국학술정보원[中國知网]에 게재된 미육(美育) 관련 연구 성과를 기반으로 공자의 예악(禮樂)교육에 드러나는 미육의 특징을 살펴본 것이다. 중국의 미육 이론은 근대에 서구문화를 받아들이면서 차이위안페이(蔡元培)에 의해 전해졌다. 차이위안페이는 공자의 예악교육은 주대(周代)의 예악 전통을 계승하였으며, 미육 또는 도덕교육의 성격을 가진다고 하였다. 이러한 이론적 배경을 기반으로 시교(詩敎)와 예교(禮敎)에 드러나는 이성적 사고능력과 감성적 공감능력의 미적 특징에 대해 고찰한 결과, 예악교육을 통해 공자가 제안한 인격형성의 목표는 군자이다. 군자의 미적 특징은 ‘문질빈빈(文質彬彬)’이라는 ‘문’과 ‘질’의 조화적 차원에서 설명된다. ‘문’과 ‘질’은 내적 도덕성[善/仁]과 외적 미[美/禮]의 조화적 관계를 유지해야 ‘문질빈빈’의 상태라고 평가받을 수 있다. 공자가 강조하는 ‘문질빈빈’의 인격, 즉 군자(君子)의 미적 특징은 내적 도덕성[質]과 외적 미[文]가 조화를 이룬 미적 인간임을 알 수 있다. This paper based on the research results of Aesthetic Education published in the Chinese Academy of Sciences [中國知网], this paper studied the characteristics of education revealed in poetry education and propriety education of Confucius. Cai Yuan Pei(蔡元培) brought China's Aesthetic Education theory to China by learning Western culture. Cai Yuan Pei said that Confucius' art education is Aesthetic Education or moral education, inheriting the ancient art education tradition. This paper examined the aesthetic characteristics of rational thinking ability and emotional empathy in poetry education(詩敎) and propriety education(禮敎). Through propriety education and art education, Confucius suggested the goal of personality formation is Aesthetic human. The characteristics of the aesthetic human were considered through the harmony of morality and beauty. As a result, morality and beauty were described in harmony. And it is the Aesthetic human that maintains the harmony between morality and beauty. In conclusion, the Aesthetic human that Confucius told us is a human who is a balance of morality and beauty.

산수자연에 대한 유가적 즐거움 연구-증점(曾點)의 ‘욕기영귀(浴沂詠歸)’를 중심으로-

JIANGYINGSHUN 한국미학회 2014 美學 Vol.79 No.-

공자는 부국강병에 예교를 갖춘 이상적인 정치를 펼치겠다는 세 제자의 말에 공감하지 않고 산수자연을 즐기겠다는 증점의 ‘욕기영귀(浴沂詠歸)’에 감탄하며 공감을 표시하였다. 이에 후세의 유학자들은 공자가 증점의 어떤 점에 감탄하고 공감했는지에 대해 여러 가지 해석을 내놓았으며 증점의 인격에 대해서도 ‘광자(狂者)’라 하거나 ‘요순(堯舜)의 기상’이라는 긍정과 부정이 엇갈렸다. 본 논문은 기존연구에서 부정적인 인격자로 지목되었던 증점의 위상을 긍정적으로 재평가하였다. 이를 위해 『논어』에서 언급된 ‘광자’는 ‘과불급’의 ‘과(過)’의 뜻이며 맹자가 증점을 ‘광자’라고 평가한 이유는 증점이 ‘고지인(古之人)’을 숭상하나 실천이 부족한 흠이 있었기 때문이며 이 관점은 주희에 이르러 증점은 ‘요순(堯舜)의 기상’, ‘안회와 더불어 공자의 도를 깨달은 제자’라는 높은 위상으로 바뀌게 되었음을 밝혔다. 또 『논어』의 ‘요산요수(樂山樂水)’ 텍스트 분석과 도연명과 정호의 산수자연 시 분석을 통해 증점의 ‘욕기영귀’의 즐거움은 순전한 산수자연의 즐거움이 아니라 기상이 높은 인격자의 즐거움이며 이 때문에 후세의 유학자들에게 높이 평가되었음을 밝혔다.

World Socialism of the Twenty-first Century : socialism mode is being innovated and various modes of socialism are appearing

Jianhua Lin 청주대학교 국제협력연구원 2005 國際文化硏究 Vol.23 No.-