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Effect of Asymmetric Hot Rolling on the Texture Evolution of Fe–3%Si Steel
Tae‑Wook Na,Hyung‑Ki Park,박창수,Hyung‑Don Joo,Jong‑Tae Park,Heung Nam Han,Nong‑Moon Hwang 대한금속·재료학회 2018 METALS AND MATERIALS International Vol.24 No.6
In Fe–3%Si steel, the hot rolling process affects not only the hot rolling texture but also the primary recrystallization texture. Here, the effect of asymmetric hot rolling was studied by comparing the difference in the texture evolved between asymmetricand symmetric hot rolling. The effect of asymmetric hot rolling on the texture of primary recrystallized Fe–3%Si steel wasalso studied. The symmetric hot rolling of Fe–3%Si steel produces a rotated cube texture at the center but Goss and coppertextures near the surface. Asymmetric hot rolling tends to produce Goss and copper textures even at the center like thetexture near the surface. After primary recrystallization, the dominant texture at the center changes from {001} <210> to{111} <112> and the new texture has a higher fraction of the grains which make the low energy boundary with Goss grainsthan that of symmetric hot rolling.
사업장(事業場) 근로자(勤勞者)의 사상체질(四象體質)에 따른 생활습관(生活習慣), 자각증상(自覺症狀), 건강인식(健康認識)에 관(關)한 연구(硏究)
서명효,강홍구,장두섭,왕명자,차남현,김삼태,권소희,정해경,송용선,이기남,Seo Muoung-Hoy,Kang Hong-Goo,Jahng Doo-Sub,Wang Myoung-Ja,Cha Nam-Hyun,Kim Sam-Tae,Kwon So-Hee,Jung Hae-Kyoung,Song Yung-Sun,Lee Ki-Nam 대한예방한의학회 2003 대한예방한의학회지 Vol.7 No.2
The study was conducted to evaluate the difference of life style, subjective symptoms and health cognition depending on the Sasang Constitution in the industrial workers. The results were as follows ; Constitutional distribution among exposed group were Tae-eum In(38.4%), So-eum In(35.2%), and So-yang In(26.4%) and it was turned out that Tae-eum In took a higher portion of Sasang constitution than other constitutions in technician workers. 'Exercise' and 'Obesity' were found most in Tae-eum In, In So-eum In there were many 'Normal' weight and 'Having digestive disorders' were found most in So-eum In. There were no significant difference in the health cognition among the constitutions. The closer to 'normal' weight, the higher prevalence in 'having' concern about health condition and the more 'normal' condition in sleeping, the higher prevalence of 'having' self-confident in present health.
혈관조영색전술을 이용한 비조절성 후비강부 출현의 처치 : 증례 보고
남기영,권대근,김종배 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.4
The posterior nasal bleeding sometimes develope a life threatening situation because of its limited access and the profuse vascular network of the bleeding area. There are various methods of hemostasis including packing, cautery, and arterial ligation those vary in effectiveness. But sometimes patients cannot tolerate these methods or show rebleeding sign. So, if all of these methods are not successful, we should consider the further treatment. The selective angiographic embolization has various advantages such as rapidness, repetition, good visualization, and being performed under local anesthesia, therefore it can provide useful way in patients with massive, intractable posterior nasal bleeding. We report a case of angiographic embolization for intractable posterior nasal bleeding patient and review the effectiveness of the this treatment.
여성들의 수유양상 및 수유방식의 선택에 영향 주는 요인들
김기남,현태선,강남미 대한지역사회영양학회 2003 대한지역사회영양학회지 Vol.8 No.3
In order to obtain baseline data for the development of an educational program on breastfeeding, a survey was carried out to investigate infant feeding practices, the characteristics the subjects have in common, and the factors that influence the feeding methods among women in Seoul and the Chungbuk area. Subjects included 671 lactating mothers who visited public health centers or pediatric clinics between December 1999 and february 2000, and were interviewed using a questionnaire. The results were as follows : With respect to feeding methods, the incidence of breastfeeding, formula feeding, mixed feeding and formula feeding switched from breastfeeding was 20.6%, 29.8%, 11.6%, and 38.0%, respectively. With respect to the characteristics the subjects had in common, the incidence of women who planned their infants' feeding methods before pregnancy, during pregancy, and after delivery was 48.7%, 31.0%, and 20.3%, respectively. The incidence of women who started breastfeeding in the hospital after delivery was 38.8%. About seventy seven percet of the subjects had not previously attended an educational program on breastfeeding, and most of these wanted to participate in the future in an educational program to learn about breastfeeding. Some of the topics they were interested in were "Nutritional Management for Sufficient Breast Milk" (60.3%), "Breast Care" (25.0%), and "Correct Nursing positions" (9.8%). Most (88.2%) of the women who breastfed suffered from physical discomforts including discomfort of the waist, and legs and discomfort due to cracked or sore nipples. "Insufficient breast milk" was the main reason for breastfeeding cessation or for switching to formula feeding. FIith respect to formula feeding practices, the main reasons for selecting a specific brand of formula were "the same brand the hospital used after delivery" (34.3%) and "an advertised brand" (23.3%). The strongest factor for promoting breastfeeding was "the support of husband or parents", next were "breastfeeding in the hospital after delivery" and "planning to breastfeed before pregnancy" in that order. The characteristics the subjects had in common relating to formula feeding were "mother's job", "high economic level", "Caesarian section" and "planning to breastfeed after delivery". In conclusion, it is recommended that breastfeeding be promoted, and educational programs be developed and offered as soon as possible to each group which had unfavorable attitudes toward breastfeeding. In addition, the monitoring and supervision of formula advertisements is required to protect consumers from the adverse effects of exaggerated advertising.
조남기,오태수,조은일 제주대학교 환경연구소 2000 환경연구논문집 : 제주대 Vol.8 No.-
In order to determine the influence of nitrogen fertilizer on agronomic characters, and forage and quality, Danjimu, Sannariyeolmu and Seouldaehyungmu were cultured on the volcanic ash soil at the Experimental Farm of Cheju University under seven nitrogen rates (0, 50, 100,150, 200, 250, 300 ㎏/㏊) from April 17 to June 20, 1999. Days to flowering was delayed from 47 to 54 days after seeding a s the nitrogen rate increased. Days to flowering of Seouldaehyungmu was very fast(44days) while Danjimu was slow(54days). The plant height increased by increasing of nitrogen rate, the longest was observed at 250 kg/ha treatment (92.7cm) and 300 kg/ha treatment(93cm), but there was no significance. Plant height of Seouldaegyungmu was the tallest(91.5cm) of all, while that of Danjimu was the shortest(79.8cm ). Total fresh yield was very high at 250kg/ha treatment(94.2MT) and at 300kg/ha treatrnent(96.2MT). but there was no significance, on the other hand, was the shortest in the case of non-treatment(46.MT).
이남순,임중기,류병태,류서홍,원정희 成均館大學校 1980 論文集 Vol.27 No.-
2-Alkoxy-4-acetamidobenzthioamide was synthesized by reaction of hydrogen sulfide with 2-alkoxy-4-acetamidobenzonitrile which was dehydrated from 2-alkoxy-4-acetamidobenzamide by thionyl chloride or phosphorus pentoxide. 2-Alkoxy-4-acetamidobenzthioamide was obtained by hydrolysis of 2-Alkoxy-4-acetamidobenzthioamide with 10% hydrochloric acid solution.
韓南珠,權泰鳳,吳成基 경희대학교 부설 식량자원개발연구소 1978 硏究論文集 Vol.1 No.-
The effects of nucleotides (Na-GMP, Na-IMP, Na-UMP, 5-50 ㎎%) on the physicochemical properties of frozen Alaska-pollack fillet containing 500㎎% of sucrose at 15℃ were studied by the quantitative measurements of myofibrillar Mg^(2+) - ATPase activity, trimethyl amine-N, total protein, pH and textural variations with the lapse of time. The results were compared with those of D-sorbitol, D-xylose, sodium citrate and monosodium glutamate at different contration levels (125 ㎎% - 500 ㎎%) 1. The more higher the concentration of additives, were observed the more higher myofibrillar Mg^(2+) - ATPase activity In contrast, however, trimethylamine-N content was decreased with the concentration increase 2. All the "Kamaboko" groups containing at different concentration levels maintained almost similar elasticity On the other hand, they were not only easily crumbled but also markedly decreased hardness, cohesiveness and gumminess with the lapse of time 3. The Na-UMP groups showed inferior textural characteristics to other additives, but Na-IMP groups were superior 4. The Na-IMP groups increased hardness, cohesiveness and gumminess However, the Na-GMP groups increased hardness and gumminess with the concentration increase On the other hand, hardness was decreased in Na-UMP groups 5. Nucleotides showed superior protective effects of myofibrillar protein in frozen Alaska-poliack fillet over D-sorbitol, D-xylose, sodium citrate and monosodium glutamate And it appears that nucleotides would be promising additives for the quality improvement of a variety of fish products
Flux법에 의한 PZN-PNN-PT-PZ계 세라믹스의 제조 및 압전특성
이기태,남효덕 嶺南大學校工業技術硏究所 1992 연구보고 Vol.20 No.2
The quarternary system ceramics 0.5[xPb(Zn1/3Nb2/3)O3-(1-x)Pb(Zn1/3Nb2/3)O3-0.5[yPbTiO3-(1-Y)Pb-ZRO3] were prepared by flux method and compared their piezoelectric properties with conventional method. Piezoelectric properties of sample prepared by flux method were improved compared to that of conventional method. By adding PZN, morpholropic phase boundary of the sample shifted to more Zr-rich composition and showed a drop in piezoelectric properties.