• Journal of the Korean Society of Food Culture
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• v.3 no.3
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• pp.309-317
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• 1988

The effects of $CaCl_2$, K-sorbate, and fermented fish sauces and blanching on the texture of Chinese cabbage of Kimchi were evaluated. The addition of salt-fermented shrimp or salt-fermented anchovy accelerated the pH reduction, acidity increase and reducing sugar consumption, but K-sorbate, Ca-chloride and blanching suppressed the ripening process of Kimchi. The latter retarded the softening rate of Chinese cabbage during Kimchi fermentation, as demonstrated by the cutting force, compression force, recovered height and work ratio. The sensory evaluation confirmed the results of instrumental texture measurments. The instrumental measurements, i.e. pH, acidity cutting thickness, cutting force and compression test parameters, showed acidity acidity was calculated as % lactic acid attributes, i.e. the preferences for taste, appearance and texture, and the level of crispiness, hardness, chewiness and fibrousness. The pH of Kimchi was appeared to be an important quality parameter, whiih had significant correlations with the taste, appearance, chewiness, hardness, fibrousness and crispiness.

• Proceedings of the Membrane Society of Korea Conference
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• 1998.10a
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• pp.166-168
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• 1998

막분리공정에서 분리막 오염은 투과율 감소에 큰 영향을 받는데 그 이유는 주로 막재질의 변질 및 막 표면에서의 농도 분극 현상에 기인하고 분리막의 종류 및 분획분자량의 차이에 따라 막분리 능력이 달라질 수 있다. 본 연구에서는 상용화되어 있는 UF/MF 중공사막에 미치는 막오염 정도와 세정 특성을 알아보았다. 막오염 정도는 막의 Pore size, 소재, 막구조에 따라서 단백질 수용액을 처리하여 막의 오염이 어떻게 일어나는지를 알아보았고 막오염 정도를 검토하기 위하여 초기순수에 대한 흡착후 투과량을 DOF(Degree of fouling)로 정의하였다. 막의 세정특성은 0.1N-NaOH을 사용하여 화학적 세정효과를 확인하였고 초기 순수에 대한 세정후 회복정도를 DOC(Degree of Cleaning)로 정의하였다. 또한 UF막에서 분획분자량별 특성과 MF막에서 소재별/구조적 특성이 DOF와 DOC에 미치는 영향에 대해서 알아보았다.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.453-453
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• 2022

4대강 유역에 설치되어 운영되고 있는 보의 개방을 통해 하천의 수질 개선 및 자연성 회복을 추진하고자 하는 정부정책에 따라 2017년부터 낙동강 유역 내 일부 보의 수문을 개방하고 모니터링을 진행 중에 있다. 그러나 보 건설 이후, 하천 주변의 농업형태 및 농업용수 취수 조건이 변화하였고, 보 개방에 따른 하천 주변 지역 지하수위 변화로 인한 농업용수 부족 현상이 발생하였다. 정부에서는 보 주변의 농업 현황 조사, 지하수 현황 조사 및 용수 공급 지원 등을 추진하고 있으나, 하천 주변의 농민들은 보 개방으로 인해 발생할 수 있는 농업용수부족 및 이에 따른 농업피해에 대한 우려를 나타내고 있다. 특히 지하수의 지열을 사용하여 겨울철 시설재배 농작물의 보온을 하는 '수막재배' 방법을 활용하는 농가의 경우 지하수위 저하에 따른 난방비 증가 및 농작물 냉해 피해가 발생함에 따라 보 개방에 대한 반대 입장을 고수하고 있다. 하천 주변에 분포하는 지하수는 하천의 영향을 받으며, 지표수와 지하수는 기저유출 등을 통해 상호영향을 받는 물 순환의 구성요소이므로, 보 개방으로 인한 하천수위 변화에 따른 주변지역 지하수위의 변화 패턴에 대한 체계적인 조사와 분석이 필수적이다. 따라서 본 연구에서는 낙동강 보 개방 모니터링을 위한 관측정 설치의 필요성을 조사/분석하고 최적의 관측지점에 설치하여 지속적으로 모니터링을 수행하고자 한다. 이를 통해 보 개방에 따른 주변지역 지하수 영향에 대한 조사 및 분석이 보 개방 모니터링 전후로 수행되어, 보 개방에 따른 지하수 환경 내 영향 분석, 농업형태에 따른 지하수 활용 영향 및 지하수 장애 발생 시 임시대책/항구대책 제시 등을 추진할 수 있어야 한다. 이에 따라 정부와 Kwater는 보 개방에 따른 현장조사 및 분석을 통한 지하수 관측정을 설치하고 지속적인 모니터링을 추진하고 있다. 2019년 현재, 낙동강 유역에는 총 194개소의 지하수 관측정이 있으며, 향후 수막재배를 많이 활용하고 있는 시설재배 농업단지 등을 보 개방에 따른 지하수 이용장애 민원 우려지역을 중심으로 지하수 관측정을 추가로 설치하여 보 개방에 따른 지하수 영향 분석 및 이에 대한 용수공급 대책 마련 등을 위한 기초자료 활용될 것으로 기대한다.

• Ecology and Resilient Infrastructure
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• v.9 no.2
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• pp.83-92
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• 2022

The 2020 summer extreme flood severely disturbed the riparian ecosystem of the Seomjin River. Some trees were killed by the flood impact, whereas others have recovered through epicormic regeneration after the disturbance. At the same time, several tree individuals newly germinated. This research aimed to explain the recovery of the riparian ecosystem by spatial proximity between each tree individual of different characteristics, such as "dead", "recovered", and "newly germinated". A spatial point pattern analysis based on K and g-functions revealed that the newly germinated trees and the existing trees were distributed in the spatially clumping patterns. However, further detailed analysis revealed that the new trees were statistically less attracted to the recovered trees than the dead trees, implying competitive interactions hidden in the facilitative interactions. Habitat amelioration by the existing trees positively affected the growth of the new trees, while "living" existing trees were competing with the new trees for resources. This research is expected to provide new knowledge in this era of rapid climate change, which likely induces stronger and more frequent natural disturbance than before. Environmental factors have been widely used for ecosystem modeling, but species interactions, represented by the relative spatial distribution of plant individuals, are also valuable factors explaining ecosystem dynamics.

• Journal of Digital Convergence
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• v.18 no.12
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• pp.435-444
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• 2020

This study is a descriptive research to grasp the effects of nurse practice environment on organizational commitment and to confirm the mediating effect of resilience. The subjects of this study were 150 nurses who agreed to participate in this study among clinical nurses working in university hospital and General hospital located in City J and City J and the data were collected through survey. The collected data were analyzed by SPSS 25.0 program. Mean scores were organizational commitment 3.38, nurse practice environment 2.62, and resilience index 3.45. There were significant differences on the organizational commitment index for : age, marriage, clinical experience, job satisfaction and a positive correlation between nurse practice environment and organizational commitment, between nurse practice environment and resilience index and between organizational commitment and resilience index. As a result of research, resilience partially mediated the relationship between nurse practice environment and organizational commitment. The findings suggest that in order to improve the organizational commitment of nurse, converged organizational commitment arbitration program strategies are needed to improve the nurse practice environment and resilience of nurses.

• Korean Journal of Social Welfare
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• v.65 no.4
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• pp.295-315
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• 2013

The purpose of this study is to analyse the ethical basis of two influential global citizenship idea - Rawls' liberal approach and cosmopolitan republicanism - as a theory on global justice. In the aspect of deontology, Rawls' view has the limit not to reflect reciprocal obligation and duty on civil right in the era of economic globalization that inequality has been structured. But cosmopolitan republicanism has the basis of deontological justification because advocates the realization of anti-domination principle at global level. In the aspect of utilitarianism, Rawls attempts to justify the logic rejecting redistribution intra nations. But cosmopolitan republicanism has the potential to decrease maleficence at global level and to increase utility level through overcoming the structured sacrifice of the citizens of developing countries.

• 한국벤처창업학회:학술대회논문집
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• 2018.11a
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• pp.261-266
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• 2018

우리나라 기업 창업 후 5년까지 생존율(27.5%)은 OECD 평균 생존율(43.9%)보다 낮으며 최근 5년간('11~'15년) 연평균 창업은 81만개, 폐업은 70만개로 다산다사(多産多死) 특징 보유하고 있다. 사업 실패로 인한 폐업은 개인적인 차원을 넘어 사회적인 문제로 확대되고 국가 경제에 부담으로 작용하고 있다. 이에 본 연구에서는 사업실패경험이 학습효과와 자산으로 승화하여 재창업의지에 직접적인 영향을 미치는지, 사업실패자에 대한 사회적지지가 재창업 의지에 어느 정도 상승효과를 주는지에 대해 분석하기 위해 사업실패자자들을 대상으로 자료를 수집, 실증 분석하였다. 본 연구 결과는 첫째, 사업실패경험 속성중 비재무적 손실이 발생한 경우 재창업의지에 부(-)의 영향을 미치는 것으로 나타났다. 이는 비재무적 손실이 크다면 재창업의지는 낮아지게 된다. 둘째, 재무적 손실이 발생한 경우에는 재창업의지에 영향을 미치지 못하였다. 셋째, 조절변수인 정서적지지는 비재무적 손실이 발생한 경우 재창업의지에 정(+)영향을 미치는 것으로 나타났다. 따라서 재창업지원은 이들이 경험한 비재무적 손실을 회복 할 수 있도록 정서적지지를 활용하는 다양한 정책안들이 고안 되어야 하고 사업실패로 재무적 손실이 크게 나기 전에 사업을 빠른 시일 내에 정리토록 하는 것이 재도전 시책에서 무엇보다 중요하다는 시사점을 주고 있다.

• Journal of Life Science
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• v.21 no.3
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• pp.368-374
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• 2011

The relationship between MDHA reductase activity and ascorbate, dehydroascorbate, and hydrogen peroxide content was evaluated, and this experiment was conducted to determine the change of MDHA reductase activity and the level of steady-state mRNA abundance of MDHA reductase in lettuce leaves subjected to low temperature stress. MDHA reductase activity of chloroplastic and cytosolic fraction in lettuce leaves subjected to $4^{\circ}C$ for 24 hr increased, followed by a steady decrease during the duration of recovery to $20^{\circ}C$ for 48 hr. The content of ascorbate slowly increased during low temperature treatment, followed by a rapid increase during the duration of recovery to $20^{\circ}C$ for 48 hr, while dehydroascorbate content rapidly decreased. The relationship between MDHA reductase activity of chloroplastic and cytosolic fraction in lettuce leaves subjected to $4^{\circ}C$ and ascorbate content correlated positively ($R^2$=0.9240, 0.9108, respectively), but MDHA reductase activity of chloroplastic and cytosolic fraction and dehydroascorbate were reversely correlated ($R^2$=0.8638, 0.8980, respectively). Hydrogen peroxide content and MDHA reductase activity of chloroplastic and cytosolic fraction in lettuce leaves subjected to $4^{\circ}C$ correlated positively ($R^2$=0.9443, 0.9647, respectively). Northern blot analysis showed that the level of mRNA transcript of MDHA reductase was similar to total activity of MDHA reductase, and also that the level of mRNA of MDHA reductase after recovery to $20^{\circ}C$ for 24 hr decreased.

• Journal of Embryo Transfer
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• v.19 no.3
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• pp.283-289
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• 2004

This study was conducted to determine the effects of incubation time after cooling on mouse meiotic spindle and chromosome alignment and the optimal incubation time for their restoration. Oocytes at the metaphase II were obtained from superovulated mice. Control oocytes were held at 37$^{\circ}C$ during the experiment. Oocytes were rapidly cooled to $0^{\circ}C$, held for 30 minutes, warmed and incubated at 37$^{\circ}C$ for 5, 15, 30, 60 and 120 minutes, respectively. The morphological features of spindle and chromosomes in oocytes were evaluated by immunofluorescent staining. Meiotic spindle of control oocytes exhibited a normal-looking bipolar configuration(barrel-shaped) and highly fluorescent microtubles. The chromosomes were clustered in a discrete bundles at metaphase plate. Disassembly of meiotic spindle and chromosome dispersion were occurred immediately after chilling of oocyte. Fluorescence intensity index(FIS), normal chromosomes aligned and normal spindle configuration were compared according to incubation time at 37$^{\circ}C$. Restoration of a barrel-shaped spindle and normal chromosome alignment was occurring after 5 minutes incubation at 37$^{\circ}C$, improved as a incubation time increased, and decreased gradually after 120 minutes incubation(P<0.05). The optimal incubation time for restoration of meiotic spindle and chromosomes in cooled oocytes was 60 minutes.

• The Journal of the Korea Contents Association
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• v.19 no.5
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• pp.306-315
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• 2019

The purpose of this study was to analyze empirically influential factors related to the recovery of people with a mental disorder and also the moderating effects of family resilience. For this purpose, the investigator developed a research model that took into consideration both the positive and negative elements of individual and social factors based on the ecological, psychological, social, and ecosystem perspectives in previous studies and checked their causal effects and the moderating effects of family resilience in statistical significance. The subjects include 112 clients at an institution for people with a mental disorder. Data was collected with an interview based on a structured questionnaire. Collected data was put to the multiple regression analysis. The analysis results show that there was statistical significance in self-esteem, social stigma, and social support excluding symptoms and that the moderating effects of family resilience had positive(+) synergistic effects only on self-esteem and social support. Based on these results, the study made proposals about practice strategies including the establishment of internal and external support systems to make an effective approach to recovery and the systemization of family resilience and supportive strategies to promote the smooth recovery of people with a mental disorder through the reinforcement of programs related to the confirmed positive elements of self-esteem and social support.