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이근택,이국종 한국축산학회 1998 한국축산학회지 Vol.40 No.6
Microbiological and physico-chemical quality parameters and shelf-life of vacuum packaged Hanwoo beef strip loins in 3rd grade during storage at 0℃ were investigated. The studies were conducted in triplicate. The initial total aerobic colony counts of the samples from the 1st, 2nd and 3rd experiments were 2.8 x 10², 4.4 x 10⁴ and 3.5 x 10² CFU/㎠. respectively. The wants reached to ca. 10^7 CFU/㎠ after 60, 35 and 50 storage days. respectively. Off-odour occured from the meat was detected even after pack opened for 30 min. lactic acid bacteria were primarily microbial flora in the vacuum packaged samples. Che growth of other microorganisms such as Pseudomonas, Enterobacteriaceae, E. coli and Clostridium was generally retarded on the vacuum package during the storage at 0℃. However, the population of Pseudomonas in the; second experiment showed a gradual increase to the level of ca. l0^5 CFU/㎠, and remained at this level through the storage. Before opening the vacuum packs. there were no significant changes in Hunter `a' value(redness) during the whole storage period. However. it increased greatly within 1 hr and then gradually between 5 and 10 hr after the pack opening. The increase of `a' value in the sample stored for 1 day was insufficient after pack opening compared to the others. On the 2nd day oxygen concentration in the vacuum packages decreased already to the minimum level. while carbon dioxide concentration increased sharply. After 1 day of storage, the values of hardness and water holding capacity of the vacuum packaged strip loins tended to be decreased, but the latter increased slightly at the end of storage. pH value was declined to 5.4-5,7 one day after the slaughter. However. it increased slightly after the prolonged storage. VBN value increased as the storage extended.
응급실을 통해 입원한 급성 호흡 곤란 환자의 체질량지수에 따른 동맥혈 가스 분석 결과의 변화와 예후 예측 유용성
이근택,성원영,이장영,이원석,서상원 대한응급의학회 2019 대한응급의학회지 Vol.30 No.6
Objective: This study examined the change tendency in the arterial blood gas analysis (ABGA) results according to the body mass index (BMI) of patients admitted through the emergency department (ED) with dyspnea, as well as the risk factors for intensive care unit (ICU) admission and in-hospital mortality in obese patients. Methods: A retrospective study was conducted on 768 patients, who were admitted to the ED for dyspnea during 2017 and underwent ABGA. The patients were divided into four groups according to their BMI. Multivariate logistic regression analysis was used to determine the risk factors of ICU admission and in-hospital mortality in obese patients using the ABGA results. Results: A higher BMI was associated with a lower pH (P<0.001) and higher arterial carbon dioxide pressure (PaCO2, P=0.001), hematocrit (P=0.009), and lactate concentration (P=0.012). In the obese group, low pH (odds ratio [OR], 5.780; P<0.001 and OR, 16.393; P=0.013), high PaCO2 (OR, 1.123; P=0.005), high lactate concentration (OR, 1.886; P=0.015), and base excess reduction (OR, 1.267; P=0.001) were the risk factors for ICU admission, whereas pH<7.33 (OR, 14.493; P=0.014) and high lactate concentration (OR, 1.462; P=0.008) were the risk factors for in-hospital mortality. The pH (area under the curve [AUC], 0.817; AUC, 0.890) and lactate concentration (AUC, 0.762; AUC, 0.728) were useful for predicting the ICU admission and in-hospital mortality. Conclusion: A higher BMI in the subjects was associated with a lower pH and higher lactate concentration. In addition, pH and lactate concentration were significant risk factors for ICU admission and in-hospital mortality.
이근택 한국주거학회 1997 한국주거학회 논문집 Vol.8 No.3
This Study is to divide aspects broadly that can be suggested with eyes to contemporary issues through assertions of contemporary theorists. verify those on case studies. and search for criteria on the framework of composition on expression of contemporary architecture. As the proposal of this study. the unified approach through a deductive and inductive study in the light of humanism and design creativity can establish the built environment considering human-centered architecture.
자연과 인간인식'모델을 중심으로 본 현대건축의 표현에 관한 연구
이근택 한국주거학회 1999 한국주거학회 논문집 Vol.10 No.4
This study tried to search for solutions of present problems in architecture through interdisciplinary study which includes biology, literature, aesthetics, and psychology, and set up two models composed of the nature and the human perception which contemporary architecture has problems on. By nature-oriented approach through biology and romanticist literature, the five types of organic principles which could be obtained from structure and order in natural system and by human perception-oriented approach through aesthetic theory of Harold Osborne and perceptual and cognitive psychology the structure and order of perceptual arousal, perceptual balance, and perceptual order in human cognition based on perceptual appropriateness could be found. The unified and organic framework of architectural composition must be considered through a deductive and inductive study as this study was approached. The results of the present study can be applied to construct human-oriented design principles and factors in architectural space and form, and better environmental quality.