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Jung, Sung-Hee,Moon, Jinho,Park, Jang-Guen,Lim, Jae Cheong Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.1
A mixer with a new concept design has been adapted into water treatment plants. It reportedly cuts down the energy consumption of the mixer by the new mixer, which moves vertically and creates internal flows toward its bottom. However, no experimental observations have been made on the internal flow caused by a vertical impeller. In this study, a radiotracer experiment, radioactive particle tracking (RPT) technique, and particle image velocimetry (PIV) were carried out to visualize the flow in the mixer, and compared to each other. The results show that the flow patterns from these techniques are very similar to each other, and the performance of the mixer was good enough to mix the inner materials.
이차성 부갑상선 기능항진증과 동반된 갑상선내 부갑상선암 1예
권민수(Min Su Kwon),장항석(Hang Seok Chang),김호근(Ho guen Kim),정웅윤(Woong Youn Chung),임승길(Sung Kil Lim),박정수(Cheong Soo Park) 대한두경부종양학회 1999 대한두경부 종양학회지 Vol.15 No.2
Parathyroid carcinoma is rare, occurring in less than 2-3% of the patients with primary hyperparathyroidism. In the patients with chronic renal failure, the incidence is extremely low. Only 13 cases of parathyroid carcinoma with chronic renal failure have been described in the world literature. We report a case of parathyroid carcinoma in a 43-year-old man who has been suffered from chronic renal failure for 19 years. To our knowledge, this is the first case of parathyroid carcinoma occurring in the thyroid gland associated with secondary hyperparathyroidism.
Damage on Wheat Growth and Yield by Sharp Eyespot (Rhizoctonia Cerealis) in Wheat Fields
Jong-Chul Park,Eun-Suk Lee,Hak-Sin Kim,Chun-Sik Kang,Chul-Soo Park,Jung-Jun Lee,Jun-Hee Lee,Young Guen-Cheong,Tae-Il Park,Tae-Soo Kim,Ki-Jong Kim,Jung-Gon Kim 한국작물학회 2010 한국작물학회 학술발표대회 논문집 Vol.2010 No.04
In April 2009 two wheat cropping fields, Jeonju and Gimje in Jeonbuk Province, showed yellowish leaves and dead tillers in stem bases with sharp lens-shaped darken lesions. The disease incidence in wheat cultivar Jopummil ranged from 2.2 to 43.5%, with a mean incidence of 28.5%. The different incidence was related the seeding date. Earlier seeding (15th October) fields showed severe incidence as 25.5 to 43.5% while late seeding around the end of October weakened incidence in the cultivar. Based on morphology and pathogenic characteristics, the fungus was identified as Rhizoctonia cerealis that causes sharp eyespot in wheat. The disease severely affected growth and yield including culm length, spike length, number of kernel. The average culm length of the infected cv. Jopummil was 66 cm while that of healthy plant was 74 cm. The number of kernel and tiller per unit area was decreased only in the case of more than 13% incidence, but the length of heads was not significantly different compared with that of the healthy plants.