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냉각전에 생사의 차이가 넙치육의 사후조기의 물리 화학적변화에 미치는 영향
조영제(Toung Je Cho),이호수(Ho Su Lee),유승균(Seung Geun You),김태진(Tae Jin Kim),이남걸(Nam Gul Lee),최영준(Yeung Joon Choi) 한국수산과학회 1998 한국수산과학회지 Vol.31 No.4
To clarify the effect of life or death condition before cooling on the physicochemical properties of plaice, Paralichthys olivaceus muscle at the early period after death, the plaices were dipped in the refrigerated sea water (0℃) either as olive or after anesthesia killing. These samples were stored at 0℃ sea water and the changes in rigor-mortis, ATP breakdown, content of ATP and its related compounds, breaking strength and lactate accumulation through storage were investigated. Acceleration of rigor-mortis, ATP breakdown and lactate accumulation were faster in the samples refrigerated as olive than in samples killed by anesthesia before cooling. ATP in samples refrigerated as alice showed little breakdown until 7,5 hrs but it was decomposed completely after 17.5 hrs storage. The breaking strength in muscle of plaice was 1736.2±65.4g immediately after killing. The breaking strength in samples dipped in refrigerated sea water as alive increased more rapidly and showed the maximum value over 7.5 hrs (2183.3 ± 32.2 g). However, in case of samples killed by anesthesia before cooling, the value and time reached around the maximum breaking strength were 2126.3 ± 32.2 g and 12.5 hrs, respectively and then decreased until 30 hrs. From these results, it could be suggested that dipping in refrigerated sea water after anesthesia killing before cooling is more effective in maintaining freshness of fresh plaice muscle than refrigerating as alive.
중력보상장치 설계계수를 고려한 고가반 로봇설계에 관한 연구
이도승(Do-Seung Lee),이호수(Ho-Su Lee),표상훈(Sang-Hun Pyo),윤정원(Jung-Won Yoon),류성기(Sung-Ki Lyu) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.5
In recent years, medium- to large-scale transportation machinery and machine tool manufacturing process lines have shown a trend toward centralization, softening, lightening, and slimming to reduce costs and increase productivity. This has increased the demand for vertical articulated robots. When developing and introducing a heavy weight-handling robot that can be easily applied to existing production lines, it is expected to have a great effect in securing industrial competitiveness by solving industrial issues such as the decreased productivity and increased risk of accidents due to work involving heavy lifting. In this study, we design a 6-axis robot mechanism with a heavy load-handling capacity of 700kg or more for large-sized materials of various types supplied in small quantities.
증례 : 호흡기 ; GM-CSF 흡입치료로 호전된 폐포단백증 1예
강보형 ( Bo Hyoung Kang ),이호수 ( Ho Su Lee ),이유미 ( Yu Mi Lee ),박소은 ( So Eun Park ),김우성 ( Woo Sung Kim ),김동순 ( Dong Soon Kim ),송진우 ( Jin Woo Song ) 대한내과학회 2012 대한내과학회지 Vol.82 No.3
Pulmonary alveolar proteinosis (PAP) is a rare lung disease characterized by the accumulation of lipoproteinaceous material within the alveoli. Several studies have recently found that autoantibodies against granulocyte-macrophage colony-stimulating factor (GM-CSF) play a major role in the pathogenesis of idiopathic PAP. Consequently, inhaled or systemic injection of GM-CSF has been suggested as a promising treatment for PAP. A 54-year-old male visited our hospital for progressive dyspnea. Four years earlier, he was diagnosed with PAP based on a surgical lung biopsy in another institution. Whole-lung lavage was performed four times before he visited our hospital. We administered high-dose inhaled GM-CSF therapy for 12 weeks followed by 12 weeks of low-dose therapy. After the GM-CSF treatment, the patient`s symptoms, lung function, and radiological findings were improved significantly. (Korean J Med 2012;82:357-361)
조영제(Toung Je Cho),최영준(Yeung Joon Choi),이호수(Ho Su Lee) 한국수산과학회 1999 한국수산과학회지 Vol.32 No.5
The increasing price of surimi has affected the economical benefits of surimi of surimi based food industry. To maintain gel strength in low grade surimi, the optimum formulation adding functional proteins to low grade surimi is required. The objective of this study was to develop optimum formulation of ingredients in making gels in low grade surimi on the addition of functional non-muscle proteins to low grade surimi by measuring rheological properties of the gels. The rheoloical qualities of the cooked gels made with A and RA grade surimi on the effects of adding five kinds of starches (potato, wheat, waxy maize, corn and modified corn) and four kinds of functional proteins (bovine plasma protein, dehydrated egg white, soy protein isolate and whey protein concentrate) to the gels were evaluated. The gel strengths at cooking with A and RA grade surimi, were decreased with increasing the added starches. The kind of starches added affected little the gel strengths in RA grade surimi, while potato and corn starches decreased at the least in gel strengths of the gel made with A grade surimi with increasing the concentration of starches. The bovine plasma protein(BPP) significantly increased the gel strength, especially in RA grade surimi, but BPP decreased the whiteness of the gel. Therefore, the optimum content of BPP was up to 2% because of the whiteness of the gels in RA grade surimi. The optimum formulation for the gel with RA grade surimi to satisfy the gel strength of 1000×g and 78% moisture was 40.9% surimi, 9.1% dehydrated egg white (DEW) an 0.9% starch, while that with A grade surimi under the same condition was 37.9% surimi, 6.6% DEW and 3.4% srarch.
조영제(Young Je Cho),김태진(Tae Jin Kim),심길보(Kil Bo Shim),이호수(Ho Su Lee),이남걸(Nam Gul Lee),최영준(Yeung Joon Choi) 한국수산과학회 2000 한국수산과학회지 Vol.33 No.3
This study was conducted to examine the changes of contents of ATP related compounds during drying of large anchovy and storage of dried large anchovy (DLA) according to storage temperature and package method. The total content of ATP related compounds of raw large anchovy was 36.0 μmole/g and the major ATP related compounds were consisted of IMP and hypoxanthine. The IMP content of DLA was the highest in 20℃ cold-air drying, and the breakdown of IMP was progressed rapidly in 60℃ air drying, followed by 40℃ air drying, sun drying, and 20℃ cold-air drying. During storage of DLA, ATP was not detected while ADP and AMP was detected in a very small amount, and the changes of ATP related compounds were coincided with the changes of contents of IMP, inosine and hypoxanthine. The changes of ATP related compounds with different package method did not show distinct differences, while with different storage temperature showed clear difference. The content of IMP was over 8.88 μmole/g on 60 days at -20℃, while were over 0.83 μmole/g and 0.202 μmole/g on 16 days at 5℃ and 25℃, respectively. These results suggest that the breakdown of IMP depends on storage temperature and frozen storage affects good quality of DLA during storage.
대멸치의 지질산화 및 지방산 조성의 변화에 미치는 건조조건의 영향
조영제(Young Je Cho),심길보(Kil Bo Shim),김태진(Tae Jin Kim),강수태(Su Tae Kang),이호수(Ho Su Lee),최영준(Yeung Joon Choi) 한국수산과학회 2000 한국수산과학회지 Vol.33 No.3
To develop plain dried products of large anchovy, Engraulis japonica, lipid oxidation during drying of large anchovy and optimal drying condition were investigated. The moisture contents of large anchovy on 7 hrs dryness were 9.0%, 34.0%, 38.0% and 38.8% in 60℃ hot-air drying (wind velocity, 1.4 m/sec), 40℃ hot-air drying (wind velocity, 1.4 m/sec), sun drying (30±5℃) and 20℃ cold-air drying (wind velocity, 3.1 m/sec), respectively. The cold-air drying depressed remarkably the lipid oxidation of large anchovy during drying, resulting from AV, POV, COV and the formation of browning pigment. The fatty acid composition of large anchovy was 35.8% in saturates, 20.0% in monoenes and 44.2% in polyenes. Saturates and monoenes were increased in proportion to the increase of drying time, while polyenes were decreased. The contents of 20 : 5 and 22 : 6 of polyenes were decreased remarkably in proportion to the progress of lipid oxidation, while 14 : 0, 16 : 0, 16 : 1 and 18 : 1 of saturates and monoenes were increased. The changes in fatty acid compositions by drying conditions were remarkably clarified in sun drying, followed by 60℃ hot-air drying, 40℃ hot-air drying and 20℃ cold-air drying in order.
이중에너지 컴퓨터 단층촬영을 통해 진단된 폐의 미세혈관종양색전증
박세정 ( Se Jeong Park ),조민수 ( Min Soo Cho ),김달용 ( Dal Yong Kim ),장선주 ( Sun Joo Jang ),홍윤기 ( Yoon Ki Hong ),이호수 ( Ho Su Lee ),오연목 ( Yeon Mok Oh ),서준범 ( Joon Beom Seo ),박환성 ( Hwan Sung Park ),백충희 ( Chung 대한결핵 및 호흡기학회 2012 Tuberculosis and Respiratory Diseases Vol.72 No.1
Although advances in multi-detector computed tomography (CT) technique make it possible to evaluate peripheral subsegmental pulmonary arteries, several studies have reported that small peripheral embolisms may still be missed. Recently, some reports demonstrated that dual-energy CT improved the capability to detect peripheral pulmonary embolism. We report a case of lymphoma presenting as disseminated microvascular pulmonary tumor embolism, detected by perfusion images using dual energy CT.
이호수,정유진,김은호,성낙창,이영형 동아대학교 환경문제연구소 1998 硏究報告 Vol.21 No.2
The technology of removing phosphorous, considered as one of the most important control nutrients causing eutrophication in various water bodies, have been investigated by many researchers. Recently, phosphorous crystallization process is emerging as a new technology for phosphorous removal. In this study, waste oyster shells which can be easily obtained from the ocean, were used as a seed crystal, and their effects of several physical/chemical factors on the phosphorous removal efficiencies were examined by batch tests. Ca^(2+) and pH affected phosphorous crystallization process using waste oyster shells. As alkalinity of wastewater increased, phosphorous removal efficiencies gradually decreased. Phosphorous removal efficiencies were increased, as specific area and contact efficiency per unit area of waste oyster shells were increased. In case of high temperature, phosphorous crystallization process was rapidly advanced and phosphorous removal efficiencies were increased. Depending on X-ray diffraction analysis, it was showed that generation materials extracted from the surface of waste oyster shells with short reaction time were dominated by CaHPO₄ ·2H₂O, but progressed to Ca_(5)(OH)(PO₄)₃.
나노 기공의 탄소 멤브레인에서 기체의 선택적 분리를 위한 Monte Carlo 모사
이호수,금경호,서양곤 경상대학교 환경보전연구소 2000 環境保全硏究所報 Vol.8 No.-
The object of this study is to separate hydrocarbon selectively using MC method and carbon membrane. 12-6 Lennard-Jones potential function was used to describe reciprocal action of gas molecules. 10-4-3 potential function suggested by steele was used to calculate reciprocal action of molecules and pore walls. The membrane pore is composed of slit-like pores. it is include high-pressure region(H-region). low-pressure region(L-region) and M-region. between H-region and L-region. In the membrane. the transport of molecules with small size were high when the pore size is small. but in the case of molecules with large size were opposite to the transport of molecules with small size. we have found that the diffusion through surface effected on molecules transport by discussion of snapshots and density profiles. So. if the control of the pore size and surface diffusion were used to obtain high selectivity. it will be very useful method to improve the energy efficiency.