• Title/Summary/Keyword: holding environment

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Mothering Attitude in 『Light in August』 (『팔월의 빛』에 나타난 모성적 태도)

  • Choi, Sunwha
    • Journal of Convergence for Information Technology
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    • v.9 no.2
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    • pp.94-99
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    • 2019
  • With a special attention to the effects of his different mothering environments on the formation of the children's identity and sociality, and on their growing up into a mature personality under various types of mothering attitudes, this thesis is to tell the significance of the mothering attitude in Faulkner's novel, Light in August. Lena Grove's "tolerant mothering attitude" in Light in August accepts the existence of things as they are and takes the substance over the form. The message for the writer to deliver must be Lena's "tolerance and holding mothering attitude environment." And it is the most required for a child to establish his or her identity and sociality as a human being and to grow up into a mature person.

A study on the priorities through weight analysis for each index of performance evaluation of public sewage operation agency (공공하수도 관리대행 성과평가 지표별 가중치분석을 통한 우선순위에 대한 연구)

  • Wi, Mikyung;Park, Chulhwi
    • Journal of Korean Society of Water and Wastewater
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    • v.34 no.6
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    • pp.495-502
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    • 2020
  • The 37 indicators for performance evaluation of public sewage management agencies are divided into four major categories (agency manpower management ability, wastewater treatment plant operation and management, sludge and water reuse, service quality) in the first stage, and the necessity and score acquisition for the detailed indicators by each major category in the second stages. Priority was investigated through the Analytic Hierarchy Process (AHP) analysis technique for ease and relevance of company efforts. Also, based on the results of this analysis, integrated type weighting and relative importance were analyzed. As a result of the analysis, the weight and relative importance of the first stage classification were in the order of wastewater treatment plant operation and maintenance, operation agency manpower management ability, sludge and water reuse, and service quality. As a result of analyzing the weights and priorities of the detailed performance indicators in the second stage, it was found that operator's career years, the percentage of certification holding rate in operators, compliance with the effluent water quality standards, training times for operators, and efforts to manage hazardous chemicals were important. Some of the indicators of operation agency performance evaluation may include indicators in which the performance of the company's efforts is underestimated or overestimated. In order to improve this, it is necessary to give weights in consideration of the necessity of the indicator, the relevance of the company's efforts, and the ease of obtaining scores.

Effects of supplemental different clay minerals in broiler chickens under cyclic heat stress

  • Jaewoo An;Jihwan Lee;Minho Song;Hanjin Oh;Yongju Kim;Seyeon Chang;Youngbin Go;Dongcheol Song;Hyunah Cho;Haeryoung Park;Hyeun Bum Kim;Jinho Cho
    • Journal of Animal Science and Technology
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    • v.65 no.1
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    • pp.113-131
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    • 2023
  • The objective of this study was to investigate the effect of supplementing clay minerals and organic chromium in feed on broiler chicken under heat stress (HS). A total of 90 one-day-old broiler chicken (Arbor Acres) with an initial body weight of 45.0 ± 0.2 g were assigned to five treatment groups (six replications, three birds each cage): 1) NC group, basal diet under room temperature environment; 2) PC group, basal diet under high temperature (HT) environment; 3) ILT group, basal diet + 1% illite + HT; 4) ZLT group, basal diet + 1% zeolite + HT; 5) OC group, basal diet + 400 ppb/kg organic chromium + HT. The ILT and ZLT groups had significantly higher body weight than the PC group in 4 weeks. Apparent total tract digestibility of gross energy was increased in the ILT, ZLT, and OC groups compared to the PC group. The NC group had lower foot-pad dermatitis score than other groups. Escherichia coli population in the cecum and feces was decreased in the ZLT group than in the PC group. Lactobacillus in cecum and feces was significantly increased in the ZLT group than in the PC group. Regarding blood profiles, blood cortisol was decreased in the NC and ILT groups compared to the PC group. Water holding capacity and pH were increased in the ZLT group than the PC group. In conclusion, according to the results of growth performance, nutrients digestibility, bacteria counts, and meat characteristics, supplementation of the ZLT in broiler diet can alleviate HS.

Development of Laminated Blade Based Shock Absorber Using Viscoelastic Adhesive Tape (점탄성 테이프를 적용한 적층형 블레이드 기반 충격저감장치)

  • Jae-Seop Choi;Yeon-Hyeok Park;Hyun-Ung Oh
    • Journal of Aerospace System Engineering
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    • v.17 no.2
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    • pp.86-93
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    • 2023
  • Pyrotechnic separation devices have been widely used as holding and release mechanism for deployable appendage. However, pyro-shock can cause temporal or permanent damage on shock sensitive components such as electronics, mechanism, and brittle components. This study proposed a low-stiffness blade based passive shock absorber using a multi-layered stiffener laminated with viscoelastic acrylic tapes for reducing transmitted pyro-shock upon explosion of pyrotechnic separation devices. The multi-layered structure with viscoelastic tape has high-damping characteristics to effectively secure structural integrity of low-stiffness blades under the launch environment. The design effectiveness was verified through a shock test by dropping a pendulum. The structural integrity of the shock absorber under a launch environment was evaluated through structural analysis under load conditions with a deployable payload.

A Study on the Housing Life Style of Families Living in Metropolitan Areas I: with special reference to patterning of Housing Life style (대도시 가족의 주거생활양식에 관한 연구 I - 주거생활양식 유형화를 중심으로 -)

  • 이연복;홍형옥
    • Journal of the Korean Home Economics Association
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    • v.38 no.1
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    • pp.75-87
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    • 2000
  • The aims of this study are to establish a mode of housing life style that meet the demands of families living in big cities, and the contribute to the development of a better housing life style pattern by considering metropolitan residents' choice of housing and basic concepts of their behavioral patterns. The results of this study were as follows: 1. Value orientation of family life was divided into value orientation of family and value orientation of housing. Value orientation of family was constituted of four factors such as 'harmony', 'leisure and hobbies', 'individual development and its support' , 'education' . Value orientation of housing is constituted of three factors such as 'physical characteristics of house' , '\`environmental condition', 'socio-economic conditions of housing'. The comprehensive life values were constituted of six factors such as 'the importance of communal family', 'the importance of housing decoration and housing life benefits', 'the importance of security and holding environment' , 'the importance of familial harmony', 'the importance of privacy', 'the importance of convenience and natural environment'. Based on three factors, were found to be fine types of value orientation of family life which were 'pursue healthy of family', 'comfort of family', 'clean environment', 'convenient environment', and 'harmonious relationship among family members'. Variables influencing the value orientation of family life were property and price of housing. 2. Consumption propensity when buying house, furniture and durables were constituted of four factors which were propensity to 'beauty', 'fashion', 'tradition and symbol', and 'pragmatic use'. Based on these factors, there were found to be four types of consumption propensity when buying house, furniture and durables which were 'fashion', 'tradition and symbol', 'beauty', and 'pragmatic use'. Variables influencing spending habits were found to be objective social class (SES), types of residence, wife's educational background, and price of housing. 3. Propensity to using space were constituted of three factors which were 'convenience', 'politeness and social grace', and 'housekeeping'. Based on these factors, there were found to be three types of propensity to using space which were 'individuality', 'convenience', and 'politeness and housekeeping'. Variables influencing propensity to use of space were found to be objective social class (SES), wife's educational background, types of homeownership and price of housing 4. According to this study, there were found to be six patterns of housing life style: 1) family that seeks formalist life, 2) family that seeks harmonious life, 3) family that seeks active healthy life, 4) family that combine various factors, 5) family that seeks convenience, 6) family that stresses environment.

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Influence of Characteristics of Hospital Foodservice Operation and Dietitian on Performance of HACCP Prerequisite Program (병원 급식소와 영양사의 특성이 HACCP 선행요건 수행도에 미치는 영향)

  • Song, Yoon-Ji;Bae, Hyun-Joo
    • Korean journal of food and cookery science
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    • v.32 no.1
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    • pp.107-113
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    • 2016
  • The purpose of this study was to analyze factors that influence prerequisite program (PRP) performance of hospital foodservice operation. Data was collected through surveys given to 65 dietitians working in general hospital with ${\geq}100beds$. Importance score of sanitary management for the self-operated establishments was significantly higher than that of contract-managed in the areas of working environment management (p<0.01), waste management (p<0.05), clean disinfection management (p<0.05). Performance score of hospitals with ${\leq}300beds$ was significantly lower than that of hospitals with ${\geq}300beds$ in personal hygiene management (p<0.05). Moreover, importance score of dietitians spending ${\geq}3hours$ on inspection time was significantly higher than that of dieticians spending ${\leq}3hr$ in waste management area. According to the results of Pearson correlation analysis, PRP performance score was positively related with dietitian's career (p<0.05), number of submitted beds (p<0.05), cooking process inspection time (p<0.05), dietitian's job satisfaction (p<0.01), and holding rate of utensil and equipment (p<0.05). In addition, the results of multiple regression analysis showed that dietitian's job satisfaction (p<0.001) and holding rate of utensil and equipment (p<0.05) had a significant positive effect on prerequisite program performance. In conclusion, improvement of working condition to increase dietitian's job satisfaction and securing of utensils and equipments are high priorities for improvement of PRP performance.

Effects of Thermal Properties and Water Retention Characteristics of Permeable Concrete Pavement on Surface Temperature (투.보수성 시멘트 콘크리트 포장의 열물성 및 수분보유특성이 표면온도에 미치는 영향)

  • Ryu Nam-Hyang;Yoo Byung-Rim
    • Journal of the Korean Institute of Landscape Architecture
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    • v.34 no.1 s.114
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    • pp.21-36
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    • 2006
  • This study was undertaken to analyze the effects of pavement thermal properties and water retention characteristics on the surface temperature of the gray permeable cement concrete pavement during the summer. Following is a summary of major results. 1) The hourly surface temperature of pavement could be well predicted with a heat transfer model program that incorporated the input data of major meteorological variables including solar radiation, atmospheric temperature, dew point, wind velocity, cloudiness and the evaporation rate of the pavements predicted by the time domain reflectometry (TDR) method. 2) When the albedo was changed to 0.5 from an arbitrary starting condition of 0.3, holding other variables constant, the peak surface temperature of the pavement dropped by 11.5%. When heat capacity was changed to $2.5\;kJm^{-3}K^{-1}\;from\;1.5\;kJm^{-3}K^{-1}$, surface temperature dropped by 8.0%. When daily evaporation was changed to 1 mm from 2 mm, temperature dropped by 5.7%. When heat conductivity was changed to $2.5\;Wm^{-1}K^{-1}\;from\;1.5\;Wm^{-1}K^{-1}$, the peak surface temperature of the pavement fell by 1.2%. The peak pavement surface temperature under the arbitrary basic condition was $24.46^{\circ}C$ (12 a.m.). 3) It accordingly became evident that the pavement surface temperature can be most effectively lowered by using materials with a high albedo, a high heat capacity or a high evaporation at the pavement surface. The glare situation, however, is intensified by raising of the albedo, moreover if reflected light is absorbed into surrounding physical masses, it is changed into heat. It accordingly became evident that raising the heat capacity and the evaporative capacity may be the moot acceptable measures to improve the thermal characteristics of the pavement. 4) The sensitivity of the surface temperature to major meteorological variables was as follows. When the daily average temperature changed to $0^{\circ}C\;from\;15^{\circ}C$, holding all other variables constant, the peak surface temperature of the pavement decreased by 56.1 %. When the global solar radiation changed to $200\;Wm^{-2}\;from\;600\;Wm^{-2}$, the temperature of the pavement decreased by 23.4%. When the wind velocity changed to $8\;ms^{-1}\;from\;4\;ms^{-1}$, the temperature decreased by 1.4%. When the cloudiness level changed to 1.0 from 0.5, the peak surface temperature decreased by 0.7%. The peak pavement surface temperature under the arbitrary basic conditions was $24.46^{\circ}C$ (12 a.m.)

Institutional Resources and Systems Affecting Professor Startups and Their Performances: A Panel Data Analysis (대학의 자원과 제도가 교수창업 성과에 미치는 영향에 관한 연구: 패널 데이터 분석)

  • Kim, Jong-woon
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.18 no.3
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    • pp.33-43
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    • 2023
  • The paper employs a resource-based approach to analyze the relationship between institutional resources and faculty-led startup formation and performance in South Korean four-year universities from 2017 to 2021. The author proposes nine hypotheses to explain how institutional resources or systems affect the number of faculty startups, their employee numbers and the revenue of faculty-led startups, and compare four different groups of university resources for cross-college variation. The findings suggest that institutional factors impacting faculty-led startup performance differ from those impacting other categories of startups. Universities should provide a more favorable environment, including flexible personnel policies and accompanying startup support infrastructure, to encourage faculty-led startups. In contrast, it is more effective for better performance of faculty startups, in terms of their job creation and revenue, to have more financial resources and good paper publications. The results also suggest that university technology-holding companies are crucial for increasing the number of professor startups and their performance. These findings have implications for both university and government policymakers, who aim to facilitate greater participation of professors in startup formation and commercialization of technology.

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Interactive Motion Retargeting for Humanoid in Constrained Environment (제한된 환경 속에서 휴머노이드를 위한 인터랙티브 모션 리타겟팅)

  • Nam, Ha Jong;Lee, Ji Hye;Choi, Myung Geol
    • Journal of the Korea Computer Graphics Society
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    • v.23 no.3
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    • pp.1-8
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    • 2017
  • In this paper, we introduce a technique to retarget human motion data to the humanoid body in a constrained environment. We assume that the given motion data includes detailed interactions such as holding the object by hand or avoiding obstacles. In addition, we assume that the humanoid joint structure is different from the human joint structure, and the shape of the surrounding environment is different from that at the time of the original motion. Under such a condition, it is also difficult to preserve the context of the interaction shown in the original motion data, if the retargeting technique that considers only the change of the body shape. Our approach is to separate the problem into two smaller problems and solve them independently. One is to retarget motion data to a new skeleton, and the other is to preserve the context of interactions. We first retarget the given human motion data to the target humanoid body ignoring the interaction with the environment. Then, we precisely deform the shape of the environmental model to match with the humanoid motion so that the original interaction is reproduced. Finally, we set spatial constraints between the humanoid body and the environmental model, and restore the environmental model to the original shape. To demonstrate the usefulness of our method, we conducted an experiment by using the Boston Dynamic's Atlas robot. We expected that out method can help the humanoid motion tracking problem in the future.

The Effect of Rain Fall Event on $CO_2$ Emission in Pinus koraiensis Plantation in Mt. Taehwa (강우 이벤트가 태화산 잣나무 식재림의 각 발생원별 $CO_2$ 발생량에 미치는 영향)

  • Suh, Sanguk;Park, Sungae;Shim, Kyuyoung;Yang, Byeonggug;Choi, Eunjung;Lee, Jaeseok;Kim, Taekyu
    • Korean Journal of Environmental Biology
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    • v.32 no.4
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    • pp.389-394
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    • 2014
  • This study was conducted to find out the soil $CO_2$ emission characteristic due to rain fall pattern and intensity changes. Using Automatic Opening and Closing Chambers (AOCCs), we have measured annual soil respiration changes in Pinus koraiensis plantation at Seoul National University experimental forest in Mt. Taehwa. In addition, we have monitored heterotrophic respiration at trenching sites ($4{\times}6m$). Based on the one year data of soil respiration and heterotrophic respiration, we observed that 24% of soil respiration was derived from root respiration. During the rainy season (end of July to September), soil respiration at trenching site and trenching with rainfall interception site were measure during portable soil respiration analyzer (GMP343, Vaisala, Helsinki, Finland). Surprisingly, even after days of continuous heavy rain, soil water content did not exceed 20%. Based on this observation, we suggest that the maximum water holding capacity is about 20%, and relatively lower soil water contents during the dry season affect the vital degree of trees and soil microbe. As for soil respiration under different rain intensity, it was increased about 14.4% under 10 mm precipitation. But the high-intensity rain condition, such as more than 10 mm precipitation, caused the decrease of soil respiration up to 25.5%. Taken together, this study suggests that the pattern of soil respiration can be regulated by not only soil temperature but also due to the rain fall intensity.