http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Korczak, P . (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
The Analysis of Microstructure Change during Multi - Pass Rolling of a Steel with Niobium
Korczak, P .,Dyja, H .,Pilarczyk, J . W . 대한금속재료학회(대한금속학회) 1998 METALS AND MATERIALS International Vol.4 No.4
The present paper describes experimental and numerical analyses for prediction of microstructure changes during hot plate rolling, which was conducted in Metal Forming Department Czestochowa, Technical University. Models describing kinetics of recrystallization of deformed austenite and precipitation of niobium carbon-nitrides were evaluated in semi-industrial conditions. The main objective of simulation using finite element methods was to determine temperature anti strain distributions in the roll gap and parameters of microstructure through thickness of rolled plates. The experimental results were compared with computer simulation results, which showed that retained strains accumulated during the previous passes have a big influence on stability of distribution of mechanical properties.
-
A Pilot and Feasibility Study of Oatmeal Consumption in Children to Assess Markers of Bowel Function
Hannah Paruzynski,Renee Korczak,Qi Wang,Joanne Slavin 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.5
Inadequate dietary fiber intake contributes to irregular bowel movements and may contribute to difficulty with defecation in children. Whole grain foods, such as oatmeal, may improve stool consistency and stool frequency in children; however, no studies have examined its effects. The purpose of this study was to investigate if 2 weeks of oatmeal consumption in children (ages 7–12 years) increases stool frequency, improves stool consistency, and gastrointestinal (GI) symptoms. In this single-arm intervention study, children who reported ≤5 bowel movements per week during screening, consumed two servings of instant oatmeal daily for 2 weeks. The primary outcome was stool frequency and secondary outcomes included stool consistency and GI symptoms. Participants recorded bowel movements daily, food intake, and GI symptoms during baseline and 2 intervention weeks. Photos of the children's stool were taken at three timepoints during the study to assess stool consistency. In total, 33 children (15 female and 18 male) completed the study. Linear mixed models were used to detect change between baseline and the intervention weeks and accounted for repeated measures within subjects. No statistical differences in stool frequency or consistency were observed between the intervention weeks vs. baseline; however, dietary fiber intake significantly increased during the 2 weeks of oatmeal consumption (P = .008). The addition of oatmeal to children's diets is an effective way to increase fiber consumption and may reduce some GI symptoms such as gas, straining, and feeling of incomplete evacuation. Trial identification number: NCT02868515.
-
Malgorzata Kujawska,Malgorzata Ewertowska,Ewa Ignatowicz,Teresa Adamska,Hanna Szaefer,Anna Gramza-Michalowska,Jozef Korczak,Jadwiga Jodynis-Liebert 한국식품영양과학회 2016 Journal of medicinal food Vol.19 No.3
The article presents an evaluation of the safety of yellow tea (Camellia sinensis) extract consumption and its antioxidant activity in an animal model. Wistar rats were exposed through diet to 2, 6, and 10 g yellow tea extract/kg feed for 90 days. No signs of toxicity and no differences in mean body weight gain in the treated and control rats were recorded throughout the experiment. No statistically significant differences in hematology findings and clinical chemistry parameters were observed between controls and treated groups. Microscopic examination of tissue sections revealed no pathology attributable to yellow tea extract intake. Lipid peroxidation level in the liver was slightly increased in medium-dose males and high-dose females and decreased in two female groups receiving 2 and 6 g/kg of the extract tested. Content of carbonyl groups in protein, as well as the basal level of DNA damage, was not changed. In a majority of rats, the activity of antioxidant enzymes was increased except superoxide dismutase in high-dose groups, glutathione peroxidase in high-dose females, glutathione reductase in low- and mid-dose groups, and glutathione S-transferase in mid-dose females and high-dose males. It could be concluded that rats tolerated well dietary treatment with yellow tea extract up to 0.8 g/kg b.w./day for 90 days. Results showed that yellow tea extract at the doses tested did not demonstrate adverse effects and improved the antioxidant status in the liver of rats.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
