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인덕턴스 연산에 의한 스위치드 릴럭턴스 전동기의 회전자 위치검출
나종덕(Jong -duk Na),정병호(Byun-Ho Chung),임양수(Yang-Soo Lim),김평호(Pyung-Ho Kim),조금배(Guem-Bae Cho),백형래(Hyung-Lae Baek) 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-
In this paper proposes a very simple method to estimate the rotor position of a switched reluctance motor. By on-line estimating the self-inductance of the motor, the rotor position of the SR motor is obtained, and a closed-loop drive system can be achieved. Proposed methods can easy implement to application with sensorless SR motor drive system. Speed 2000 rpm SR motor simulation executed with self inductance estimation and result represented. Simulation result verified the rotor position using the proposed self-inductance estimation method.
위절제술 후 영양 상태의 변화와 덤핑 증후군 발생에 대한 전향적 관찰 연구
나주리 ( Ju Ri Na ),서윤석 ( Yuhn Suk Suh ),공성호 ( Seong Ho Kong ),임정현 ( Jeong Hyun Lim ),주달래 ( Dal Lae Ju ),양한광 ( Han Kwang Yang ),이혁준 ( Hyuk Joon Lee ) 한국정맥경장영양학회 2014 한국정맥경장영양학회지 Vol.6 No.2
Purpose: The aim of this study was to investigate the change of nutritional status and the incidence of dumping syndrome aftergastrectomy for gastric cancer. Methods: From January 2013 to May 2014, 36 patients who underwent gastrectomy for gastric cancer were prospectively investigated in terms of nutritional status by body weight, anthropometric measurements, biochemical data, and Patient-Generated Subjective Global Assessment (PG-SGA). Dumping syndrome was assessed using a newly developed questionnaire based on the Japanese Society of Gastroenterological Surgery survey and Sigstad’s scoring system. Results: Body weight losses were 4.6%, 8.1%, and 6.9% at discharge, six months, and one year after discharge, respectively. Triceps skinfold thickness had no significance, however, mid-arm muscle circumference showed significant loss after gastrectomy. A part of the biochemical data showed significant change after gastrectomy, but almost indicated a restoring tendency within two months after discharge. In terms of PG-SGA, 33 patients (91.7%) were classified as A (well nourished) before surgery, however, the number of well-nourished patients showed a sharp decrease to 1 (2.8%) at two weeks after discharge, and then gradually increased to 25 (69.4%) at one year. The main obstacles against diet intake were reported as ‘early satiety’ and ‘anxiety’. The number of patients who had experience in at least one dumping syndrome related symptom was 21 (58.3%) at discharge, 26 (72.2%) at two months after discharge, and 11 (30.6%) at one year after discharge. Conclusion: Nutritional deficit as well as dumping syndrome is encountered in a large number of gastric cancer patients after gastrectomy. Postoperative nutritional support and personalized education seem to be very important during the postoperative period.
Rhodopirellula rosea sp. nov., a Novel Bacterium Isolated from an Ark Clam Scapharca broughtonii
노성운,이해원,Kyung June Yim,신나리,이지나,원태웅,Na-Lae Lim,김대경,배진우 한국미생물학회 2013 The journal of microbiology Vol.51 No.3
A novel Gram-negative, motile, and ovoid-shaped strain, LHWP3T, which belonged to the family Planctomycetaceae in the phylum Planctomycetes, was isolated from a dead ark clam Scapharca broughtonii collected during a mass mortality event on the south coast of Korea. Phylogenetic analysis based on the 16S rRNA gene sequences indicated that the isolate was most closely related to the type strain of Rhodopirellula baltica, with a shared 16S rRNA gene sequence similarity of 94.8%. The isolate grew optimally at 30°C in 4–6% (w/v) NaCl, and at pH 7. The major isoprenoid quinone was menaquinone-6 (MK-6). The dominant polar lipids were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, and unidentified polar lipids. The predominant cellular fatty acids were C16:0, C18:1 ω9c, and C18:0. The genomic DNA G+C content of strain LHWP3T was 53.0 mol%. Based on polyphasic taxonomic analyses, strain LHWP3T should be classified as a novel species in the genus Rhodopirellula in the family Planctomycetaceae, for which the name Rhodopirellula rosea sp. nov. is proposed. The type strain is LHWP3T (=KACC 15560T =JCM 17759T).