• 한국발생생물학회지:발생과생식
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• 제24권3호
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• pp.215-224
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• 2020

Seawater adaptability of steelhead trout increases along with the increase in the size of the fish, independent of parr-smolt transformation. Three 96 h seawater challenge tests were conducted to determine the size at which seawater adaptability of steelhead trout develops. Plasma Na⁺ and Cl^- levels, moisture content, gill Na⁺/K⁺ ATPase activity, and mortality during the 96 h after direct transfer to seawater (32 ppt) were determined. Plasma Na⁺ and Cl^- levels in 50 g fish continuously increased during the 96 h after the transfer to seawater (p<0.05), but the levels in 100 and 150 g fish leveled off after 24 h (p<0.05). Both 100 and 150 g size steelhead trout maintained muscle moisture content (%) better than 50 g size fish (p<0.05). Gill Na⁺/K⁺ ATPase activity in the 100 g size group increased in a time-dependent manner after transfer to seawater (p<0.05), whereas activity in the 50 and 150 g sizes did not increase (p>0.05), for which a possible explanation was discussed. A mere 2.6% mortality in both the 50 and 150 g size groups was observed. In conclusion, the current results indicate that 50 g size steelhead trout did not show development of a high level of hypoosmoregulatory capacity, whereas fish in the 100 and 150 g size groups showed a high level in our experimental conditions. Therefore, the steelhead trout larger than a 100 g size is recommended for transfer to seawater culture.

• 벤처창업연구
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• 제16권6호
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• pp.107-117
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• 2021

본 연구는 북한이탈주민의 경제적 자립과 안정적인 정착을 지원하는 하나의 방안인 창업을 촉진하기 위해서 이에 관련된 변인들의 인과관계를 살펴보는데 목적이 있으며, 구체적으로 첫째, 외향성, 자아성취욕구, 사회적 가치체계인 개인주의와 집단주의가 창업의도에 미치는 영향력을 살펴 보고자 하며, 둘쨰, 사회가치체계와 창업의도 간의 관계에서 사회적응성의 매개효과를 검증하고자 한다. 이를 위해 북한이탈주민을 대상으로 설문조사를 실시하였으며, 실증분석 대상은 북한이탈주민 223명 이었으며, 개인성향과 창업의도 간의 인과관계, 가치체계와 창업의도 간의 인과관계에 대한 검증을 위해 PLS 구조방정식을 사용하였으며, 가치체계와 창업의도 간의 관계에서 사회적응성의 매개 효과 검증을 PROCESS for SPSS Macro를 사용하였다. 실증분석결과를 살펴보면, 외향성이 북한이탈주민의 창업의도 수준에 정(+)의 유의한 영향을 미치는 것으로 분석되었으며, 자아성취욕구 요인은 창업의도에 정(+)의 유의한 영향을 미치는 것으로 나타났으며, 개인주의적 가치를 중시하는 비사회주의적 가치관이 북한이탈주민의 창업의도에 정(+)의 영향을 미치는 것으로 나타났으며, 집단주의 가치는 창업의도에 유의한 영향을 미치지 않는 것으로 나타났다. 본 연구에서 개인주의와 집단주의와 창업의도간의 사회적응성의 매개효과를 검증한 결과 개인주의는 사회적응성을 거쳐 창업의도에 미치는 간접효과는 부(-)의 유의한 영향력을 미치는 것으로 나타났다. 이러한 결과를 바탕으로 시시점을 언급하였다.

• 대한지역사회영양학회지
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• 제20권6호
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• pp.399-410
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• 2015

Objectives: This study aims to identify self-resilience factors that drive right dietary and food safety practices in middle school students. Methods: Data was collected from 438 middle school students in Daegu using a self-administered questionnaire in December, 2013. The questionnaire consisted of 81 items with the following categories: general information, self-resilience, right dietary and food safety practices. Statistical analyses to determine frequency, average, ANOVA, factor analysis, reliability analysis, and regression analysis were performed using SPSS 21. Results: The results of factor analysis indicated that self-resilience was classified into challenge, adaptability, patience and achievement needs, and right dietary practices were sub-grouped into family meals, experience of dietary life, eco-friendly, balanced food, economy and bad food control, and food safety practices consisted of management of bacteria, hand washing and eating off a plate, safety food and food purchasing. The score of right dietary and food safety practices showed significant differences by sex, grade, and school achievement (p < 0.05). The economy factor of right dietary practices was significantly affected by the management of bacteria (p < 0.001), hand washing and eating off a plate (p < 0.001), safety food (p < 0.01), food purchasing of food safety practices (p < 0.05). The challenge factor of self-resilience significantly affected family meals, experience of dietary life, balanced food, economy, bad food control, management of bacteria, hand washing and eating off a plate, and safety food (p < 0.05). The adaptability factor of self-resilience was associated with factors such as eco-friendly, balanced food, economy, bad food control, management of bacteria, hand washing and eating off a plate, and food purchasing (p < 0.05). Conclusions: This study suggests that dietary education programs for middle school students could incorporate food safety practices, and self-resilience such as challenge, adaptability, patience and achievement needs to be effective.

• 생물환경조절학회지
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• 제7권4호
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• pp.283-289
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• 1998

우리 나라의 기후구분에 따른 대표적인 9개 지역의 20년간(1975~1994) 기상자료를 기초로 여름철 고온기(6, 7, 8월) 온실에 대한 증발냉각시스템의 적용성을 퍼지이론에 의하여 종합적으로 평가해 보았다. 남부서해안과 남해안, 제주도 등 일부지역을 제외한 대부분 지역에서 증발냉각시스템을 이용하여 온실의 실내온도를 32.5$^{\circ}C$ 이내로 제어하는 것이 가능하며, 증발냉각시스템에서의 냉각범위가 5$^{\circ}C$이상으로 나타났다. 본 논문에서 분석한 결과는 환기시스템이 잘 갖추어진 것을 전제로 하였으므로 증발냉각시스템을 적용할 경우에는 충분한 기계환기시스템을 갖출 필요가 있다. 우리 나라의 여름철 기후는 고온다습하지만 증발냉각시스템의 적용성은 충분히 큰 것으로 판단되므로 확대보급을 위한 기술의 체계화 연구가 지속적으로 이루어져야 할 것으로 판단된다.

• 대한간호학회지
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• 제23권2호
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• pp.187-206
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• 1993

The study was done to better understand problem behavior in high school students as described in family system theory, which explains the individual’s problem within the family interactions. The purpose of the study 1. To analyze the difference in the parents’ relationship as a couple between the two groups. 2. To analyze the difference in the parent-adolecent relationship between the two groups. 3. To analyze the difference in the family function (cohesion adaptability) between the two groups. The method of the study The staudy subjects consisted of a total of 176 families (528 persons), 109 high school students (End grade) with problem behavior and their parents (problem family group) ,and 69 high school students (same grade) with normal behavior and their parents (normal family group) residing in the Seoul area. Data were gathered from structured, self-reporting qestionaires which included a Couple Relation measurement (95 items) , Parent-Adolescent communication measurement (20 items), Family Cohesion Adaptability Scale (20 items) by DavidH. Olson et al., and a behavior evaluation tool. The results of the study 1. The results as related to the hypothesis were as follows. Hypothesis 1 : “satisfaction within The couple's relationship of the parents of problem family group will be lower than the normal family group was supported significantly(t=3.07, p=.005). Hypothesis 2: “The parent-adolescent relationship of the problem family group will be more negative and problematic than the normal family group” was supported significantly(t=4.06, p=.000). Hypothesis 3: “The family function (cohesion adaptability) of the problem family group will be lower than the normal family group" was supported significantly(t=2.20, p=.022) 2. The results of related analysis were as follows 1) Analysis of a causal relation between the couple’s relationship, the parent-adolescent relationship, family function and adolescent behavior showed that the Above 3 variables influenced adolescent behavior.. In cases where couple’s relation-ship, the parent-adolescent’s relationship, the family function are the better, their adolescent’s behavior is better. 2) Discriminant analysis of the research tool showed The discriminant ability of couple’s relationship tool was 75.57%, the Parent-Adolescent communication tool, 67.05, the family adaptability cohesion tool.67. 61%. In summary, interpersonal relationships in the family subsystems are interactive and their relation influences the behaviors. of adolescents in the family. Therefore, family therapy would be a more effective method than individual therapy, to resolve negative problem for adolscents, and the research tool used in this study are very useful for family system diagnosis and nursing intervention.

• 한국의류학회지
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• 제26권1호
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• pp.160-167
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• 2002

Stretch fabrics are wide-spread for high performance clothing use with requirements of fitness and adaptability to human's movement. A newly developed 100% PET high stretch fabric has excellent properties with respect to stretch, softness, bulkiness, and apparent volume compared to PET filament fabrics. The 100% PET high stretch fabric shows advantages of a dimensional stability, dye and agent adaptability in dying and finishing process, a property of stretch recovery after washing and lower production cost than that of spandex fabric. KES-FB was used to measure mechanical properties to various directions of the fabric. This study centered on whether the 100% PET high stretch fabric is suitable to quality and shape retention of fabric by testing several properties including tensile, compression, shear, bending and surface characteristic to various measuring directions. Tensile linearity showed maximum value at $0^{\circ}$ in plain and $90^{\circ}$ in twill. Shear Stiffness of plain and twill showed maximum value equally at $45^{\circ}\;and\;135^{\circ}$. Bending rigidity showed maximum value at $0^{\circ}$ in plain and $45^{\circ}$ twill. Mean deviation of MIU showed maximum value at $0^{\circ}\;and\;90^{\circ}$ in plain and $135^{\circ}$ in twill.

• 한국작물학회지
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• 제42권3호
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• pp.344-351
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• 1997

The experiment was conducted to examine the varietal variation in gelatinization of rice flour and adaptability to rice bread processing, and the interrelation among the relevant properties. IR 44 showed the lowest temperature of gelatinization onset(T$_{o}$ ) and the highest gelatinization enthalphy(ㅿH) measured by differential scanning calorimetry (DSC). The following lower T$_{o}$ was found with the order of Suweon 230＜Pusa-33-30＜T(N) 1, Daeribbyeo 1 and the next higher ㅿ.H was followed by the order of Pusa-33-30＞Suweon 230. IRAT 177 revealed the highest temperature of gelatinization onset and conclusion(T$_{c}$) and the following higher T$_{c}$ was found with the order of Pusa-33-30＞AC 27＞Nonganbyeo. The varietal range of T$_{o}$ and T$_{c}$ was 50.0~72.5$^{\circ}C$ and 70.2~87.4$^{\circ}C$, respectively. The rice materials tested can be classified by scatter diagram on the plane of upper two principal components contracted from DSC thermogram and various characteristics relevant to processing and sensory preference of rice bread by principal component analysis. AC27, Suweonjo and IR 44 among high-amylose rices showed better suitability to rice bread processing. The temperatures of gelatinization peak and conclusion of rice flour checked by DSC were significantly negatively associated with springiness of rice bread. The most properties relevant to processing and sensory preference of rice bread such as hardness, moistness, springiness, cohesiveness, specific loaf volume and distribution or size of air cell revealed the close correlation between each other.other.

• 한국지역사회생활과학회지
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• 제17권2호
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• pp.49-60
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• 2006

It was measured the energy expenditure in each season, the cold tolerance in winter and the heat tolerance in summer. Farmers' adaptability to the change of environment was compared with those of city-dwellers such as indoor workers and street cleaners to determine the effect of living environment, especially living temperature, on the health of human body. It turned out that farmers had experienced wide range of temperature that was higher in summer and lower in winter than indoor workers. Farmers and street cleaners showed seasonal adaptation in energy expenditure, which was high in winter and low in summer. However, indoor workers did not show seasonal changes. Energy expenditure had an inverse correlation with the temperature in work place where subjects spend the longer time in a day except in female indoor workers in Seoul. And It was proved that farmers and street cleaners had stronger cold tolerance and heat tolerance than indoor workers.

• 한국환경복원기술학회지
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• 제8권1호
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• pp.73-78
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• 2005

본 연구는 실내에서의 관수주기, 토양처리, 배수층에 따른 생육과 생리적 반응을 살펴봄으로 써 실내에서 도깨비고비의 적정 생육환경을 밝히고자 수행하였다. 실험구의 관수주기는 2회/주와 7회/주로 하였으며 각 실험구의 세부처리로서 토양처리와 배수층처리는 배수층-피트모스 : 버미큘라이트 : 펄라이트=1 : 1 : 1(D-PVP), 피트모스 : 버미큘라이트 : 펄라이트=1 : 1 : 1(PVP), 배수층-부엽토 : 마사토=1 : 1(D-SL) 그리고 부엽토 : 마사토=1 : 1(SL)로 각각 처리하였으며 그 결과는 다음과 같다. 1. 실내환경에서 도깨비고비는 주 2회 관수처리보다 주 7회 관수처리에서 지상부의 생육은 촉진되었으나 낙엽수 증가로 인해 실내적응성은 감소될 뿐 아니라 황화되는 현상을 보였다. 2. 토양에 있어서는 마사토 : 부엽토=1 : 1처리가 피트모스 : 버미큘라이트 : 펄라이트=1 : 1 : 1처리보다 생육이 양호한 것으로 나타났으나 낙엽수의 증가로 인해 실내적응성은 감소하였다. 3. 배수층에 유 무에 따른 생육에 있어서는, 관수주기와 토양에 관계없이 배수층이 없을 경우 초장과 소엽장이 촉진되나, 실내적응성, 포자엽수, 신엽수는 배수층이 있을 때 더 높은 것으로 나타났다. 4. 생리적 변화에 있어 광합성률은 관수주기, 배수층, 토양처리에 따라 차이를 보였으며 주 2회 관수처리구에서는 배수층이 있는 피트모스 : 버미큘라이트 : 펄라이트=1 : 1 : 1처리에서 가장 높게, 주 7회 관수처리구에서는 배수층이 없는 마사토 : 부엽토=1 : 1처리에서 가장 낮은 것으로 나타났다.

• 한국도서관정보학회지
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• 제35권4호
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• pp.23-40
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• 2004

본 연구는 팀제를 실시하고 있는 전국의 대학도서관을 대상으로 팀제의 운영방식(도입과정, 팀원의 재량권, 팀장의 리더십, 팀의 자유로운 의사소통, 도서관장의 의지)이 팀 효과성(환경적응성, 직무만족, 팀 분위기, 비용절감)에 미치는 영향을 실증적으로 분석한 것이다. 분석을 위한 데이터는 대학도서관의 직원으로부터 회수된 설문지를 기초로 하였다. 연구결과 팀제의 운영방식 중 도입과정과 도서관장의 의지는 팀의 효과성 가운데 환경적응성, 직무만족, 비용절감에 모두 영향을 미치는 것으로 나타났고, 의사소통은 직무만족과 팀의 분위기에 영향을 미치는 것으로 나타났다.