• 제목/요약/키워드: environmental value

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Change of Heating Value, pH and FT-IR Spectra of Charcoal at Different Carbonization Temperatures

  • Kwon, Sung-Min;Jang, Jae-Hyuk;Lee, Seung-Hwan;Park, Sang-Bum;Kim, Nam-Hun
    • Journal of the Korean Wood Science and Technology
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    • 제41권5호
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    • pp.440-446
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    • 2013
  • To understand transition characteristics from wood to charcoal, Quercus variabilis wood was carbonized at 200, 250, 300, 340, 540 and $740^{\circ}C$, respectively. Heating value, pH and surface property by FT-IR spectroscopy of the carbonized charcoal were investigated. Heating value and pH increased with increasing carbonization temperature from 4500 cal/g and 4.3 of the control wood to 8,000 cal/g and 9 of the charcoal carbonized at $740^{\circ}C$, respectively. From FT-IR spectroscopy, the peaks from O-H, C-H and C-O stretching disappeared during carbonization at 540 and $740^{\circ}C$. Aromatic skeletal vibration at near $1,506{\sim}1,593cm^{-1}$ was repidly increased until $540^{\circ}C$. These results suggest that the chemical and physical characteristics of wood components in cell wall can be easily changed by increasing carbonization temperature and the carbonization seem to be incomplete at temperature below $540^{\circ}C$.

PRISM과 GEV 방법을 활용한 30 m 해상도의 격자형 기온 극값 추정 방법 연구 (A Study on the Method for Estimating the 30 m-Resolution Daily Temperature Extreme Value Using PRISM and GEV Method)

  • 이준리;안중배;정하규
    • 대기
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    • 제26권4호
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    • pp.697-709
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    • 2016
  • This study estimates and evaluates the extreme value of 30 m-resolution daily maximum and minimum temperatures over South Korea, using inverse distance weighting (IDW), parameter-elevation regression on independent slopes model (PRISM) and generalized extreme value (GEV) method. The three experiments are designed and performed to find the optimal estimation strategy to obtain extreme value. First experiment (EXP1) applies GEV firstly to automated surface observing system (ASOS) to estimate extreme value and then applies IDW to produce high-resolution extreme values. Second experiment (EXP2) is same as EXP1, but using PRISM to make the high-resolution extreme value instead of IDW. Third experiment (EXP3) firstly applies PRISM to ASOS to produce the high-resolution temperature field, and then applies GEV method to make high resolution extreme value data. By comparing these 3 experiments with extreme values obtained from observation data, we find that EXP3 shows the best performance to estimate extreme values of maximum and minimum temperatures, followed by EXP1 and EXP2. It is revealed that EXP1 and EXP2 have a limitation to estimate the extreme value at each grid point correctly because the extreme values of these experiments with 30 m-resolution are calculated from only 60 extreme values obtained from ASOS. On the other hand, the extreme value of EXP3 is similar to observation compared to others, since EXP3 produces 30m-resolution daily temperature through PRISM, and then applies GEV to that result at each grid point. This result indicates that the quality of statistically produced high-resolution extreme values which are estimated from observation data is different depending on the combination and procedure order of statistical methods.

자연환경 특성에 따른 산지형 및 해안형 아파트의 주거가치 상승 결정요인 비교 분석 (An Analysis on the Determinants of Mountainous and Coastal Area's Housing Value Caused by the Characteristics of the Natural Environment)

  • 최열;김형준;김수진
    • 대한토목학회논문집
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    • 제33권2호
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    • pp.811-819
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    • 2013
  • 본 연구는 자연환경 특성에 따른 산지형 및 해안형 아파트의 주거가치 상승 결정요인 비교 분석을 목적으로 수행한다. 최근 주거가치의 쟁점은 기후 변화이고, 자연환경 요인이 점점 중요한 요소로 인식되어왔다. 그래서 많은 연구들이 자연환경이 주거가치에 어떻게 영향을 미치는지에 대한 연구가 많이 수행되었지만, 대부분 서울 한강 근처의 아파트를 대상으로 하였다. 본 연구는 선행연구와의 차이점을 위하여, 자연환경 요인들을 조망, 체감풍속, 체감습도 등의 8가지 요인으로 구분하여 분석하였다. 결과는 다음과 같다; 산지형 아파트의 경우에는 유의한 자연환경적 요소가 거의 나타나지 않았다. 이것은 산지형 아파트에 거주하는 사람들은 환경적 요소보다는 주택특성이나 다른 특성들을 더 중요하게 생각하고 있다는 것을 알 수 있다. 반면, 해안형 아파트 거주민들은 산지형 아파트 거주민들에 비해 자연환경적 요소들을 중요하게 인식하고 있다고 나타났다. 특히, 해안지역의 조망여부는 주거가치 상승의 가장 중요한 요소로 나타났으며 체감풍속은 두 번째로 중요한 변수로 나타났다. 습도와 재해에 대한 안전도는 부정적 변수로 나타났다.

시판 튀김유지의 변패도 조사 (Chemical Values Related to Rancidity of Deep-frying oils)

  • 최한영
    • 환경위생공학
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    • 제4권1호
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    • pp.29-36
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    • 1989
  • The purpose of this investigation was performed for chemical values related to rancidity of fat and oils extracted from deep-frying food in Seoul. The samples were collected according to kinds of fat and oils, sampling sites and food stuffs for frying. The results were as follows 1. The most used frying oils were rice bran oil $(37.0\%)$ and shortening $(29.6\%)$, followed by rapeseed oil $(14.8\%)$. 2. The chemical values related to rancidity of fat and oils extracted from deep-frying foods were the next on average. Acid value-1.42, peoxide value-39.82, dinitrophenyl hydrazine value-16.73 thiobarbituric acid value-0.263. However the highest value among oils was showed in rice bran oil and the lowest value was shortening. 3. For the classification of sampling sites, acid value and peroxide value of samples of the markets were found higher than them of environs of school and roadside, and the differences between them were significant (P> 0.01), while dinitrophenyl hydrazine value and thiobar bituric acid value were not showed the significant differences. 4. For the classification of foodstuffs for frying, there were not recognized significant differences among all kinds of them.

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기업의 사회적 책임활동을 통한 기업이미지 및 고객가치 향상이 고객충성도에 미치는 영향 (Affecting Customer Loyalty by Improving Corporate Image and Customer Value through Corporate Social Responsibility Activities)

  • 김종호;황희중;송인암
    • 유통과학연구
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    • 제12권8호
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    • pp.31-42
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    • 2014
  • Purpose - Recently, a variety of activities for practicing the continuing management of domestic and foreign companies have been conducted and further, corporate social responsibility for maximizing the value of stakeholders such as customers, cooperative companies, and the local community emerges as a key business strategy. Accordingly, the issue of whether corporate image and customer value through corporate social responsibility activities positively affect customer loyalty and customer attitude is investigated in this study. Research design, data, and methodology - Corporate social responsibility activities are classified into legal and moral activities, environmental protection activities, economic activities, and community service activities; further, customer values are classified into emotional value, functional value, and social value, to determine the parameters. In addition, the strategic approach direction of social responsibility activities is justified as a strategy for effectively achieving the expected results that corporations seek by proving the effect of these parameters on customer loyalty. Results - The study results can be summarized as follows. First, legal and moral activities, environmental protection activities, economic activities, and community service activities are four types of CSR activities affecting meaningful improvements in corporate image. Second, legal and moral activities affect factors that meaningfully improve customer value, including factors such as emotional value, functional value, and social value, while environmental protection activities affect improvements in the factor of social value only. Third, corporate image affects meaningful improvements in customer value. Fourth, corporate image affects improvements in customer loyalty positively. Fifth, the three factors of customer value, that is, emotional value, functional value, and social value affect meaningful improvements in customer loyalty. Sixth, customer value acts to partly mediate the effect of companies' CSR activities on customer loyalty. As shown in the study results above, it was verified that CSR activities affect meaningful improvements in corporate image and customer value and, in turn, corporate image and customer value affect meaningful improvements in customer loyalty. In addition, it was verified that customer value acts to partly mediate the effects of companies' CSR activities on customer value. Conclusions - Accordingly, the results of this study suggests as follows. First, it was clearly verified that customers' recognition of CSR efforts has a positive effect on corporate image, customer value, and loyalty because CSR activities improve the relationships between customers and corporations by providing customers with value. Second, it was suggested that corporations implement social contribution activities strategically according to the theory that the higher the rate of CSR activities, the better the corporate image and repurchase intention would be, which is a theory verified through practical analysis. Corporations should do this by constructing positive relationships from the value perceived by customers. To summarize the study results in a brief manner, it is suggested by the results of the study that a corporation should conduct CSR more actively to make customers recognize the positive image of their products and services.

LID 기법 적용에 의한 SCS-CN값 변화가 강우유출특성에 미치는 영향 분석 (The Analysis of Runoff Characteristics by Alterations of SCS-CN Value using LID Method)

  • 권준희;박인혁;하성룡
    • 환경영향평가
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    • 제19권1호
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    • pp.49-57
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    • 2010
  • The objective of the research is to analyze changing trend of water discharge in precipitation, according to changing land use, through an environment-friendly urban development method called LID. The study chose S1 basin (Separated Sewer districts) in Cheongju region for survey. Among LID methods, relatively more applicable methods of green rooftop space and parking lot with permeable material were selected to construct plausible scenarios. Curve Number (CN) value was calculated due to land use patterns in each scenario, and SWMM model simulation were conducted during 2008 for comparative analysis. For Case 1, only parking lot with permeable material was applied to the scenario. Green rooftop space I and II were applied to Case 2 and 3 respectively. For Case 4 and 5, green rooftop space I and II were applied, in addition to parking lot with permeable material, Calculation of CN value showed that for S1 basin, the value was 88.1 (prior to scenario application), 86.5 (Case 1), 81.9 (Case 2), 68.5 (Case 3), 80.4 (Case 4) and 67.2 (Case 5). Changing pattern of rain water discharge was analyzed for each scenario. For Case 1, the change was not remarkable before and after application of scenario. In Case 2 and 4, the impact of rain water discharge as source of pollutant fell to 20~30%. The rate dropped to 30~50% in Case 3 and 5 respectively. The result demonstrates that the amount of rain water discharge, amount and frequency of sewer overflow, frequency of rain water discharge, and pollution load decreased in accordance with declining CN value in each scenario. In installing green rooftop space, the effect was twice greater when rain water discharge was directly infiltrated into soil.

한국록색소비심리구성(韩国绿色消费心理构成):일개로경분석모형(一个路径分析模型) (Psychological Make-up of Korean Green Consumerism: A Path Model Analysis)

  • Kim, Joo-Ho;Kim, Yeon-Shin
    • 마케팅과학연구
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    • 제20권3호
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    • pp.249-261
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    • 2010
  • 随着消费者对环境的关注不断增加, 许多公司都积极从事环境营销来实现其目标. 不过, 有关环境的消费者的高度关注并不总是反映在他们的购买行为. 这表明需要有一个绿色消费的范围内个人的信仰体系的发展有深入的了解. 考虑到心理学的方法, 大量的研究机构已测试的基本因素和生态意识的消费者行为, 这些因素的相互关系. 然而, 以往的研究大多数集中于西方国家. 本研究使用韩国消费者为研究样本, 试图了解韩国绿色消费的基础, 发现跨文化在指导消费者的环保态度和行为的重要的普遍价值. 为此, 我们联系了Schwartz在1992年提出的10个普遍价值和价值-态度-行为层次模式的环境行为. 参照价值-态度-行为的框架, 我们提出的概念模型可以解释韩国消费者的环保态度中表现出了什么动机, 以及后来此态度如何影响他们的绿色选择. 其中, 可利用相关的环保价值的关系模式, 我们首先假设激励价值类型和环境态度之间存在特定的关系. 在假设2中, 环境态度被假定用来预测环境行为. 这个假设的基础是对环境有利的态度可能会产生许多不同的行为, 我们认为消费者对环境的有利的态度和各种环保行为是相关的. 因为有环保态度的人们会对环保行动方面的知识更感兴趣. 与假设2一致, 我们推测在不同的环保行为之间存在正相关关系. 564名大学生参加了这项研究. 样本包括308名男性, 254名女性, 2名参与者没有注明性别. 参加者的平均年龄为22.5(标准差=2.11)岁, 年龄范围从19岁到39岁. 至于专业, 我们作出了特别努力使得参与者来自于大学的不同学科. 所收集的数据是通过自我完成问卷调查. 问卷评估参与者的价值优先, 环境态度和行为. 我们进行了路径分来测试所提出的模型. 观测的模型的整体适配度为x2=72.01(p=0.00), GFI的=0.983, CFI=0.982, NFI=0.970, RMR=0.070, 和REMSEA=0.050. 大部分适配值表明了数据与模型拟合良好. 因此, 环境态度价值, 环境的非购买行为和环境的购买行为的层级关系得到了确认. 所有的预测路径被路径系数评估, 几个主要影响假设被确认. 在10个价值类型之外, 普遍性和力量是显著的但是与环境态度的关系是相反的. 与其他研究一致, 我们的结果证实了环境态度是引导各种关注环境的行为的一个重要因素. 最后我们发现环境非采购和购买行为之间有显著关系. 路径分析支持普遍性价值为韩国消费者的绿色意识提供了动机而且他们通过对环境的有利态度间接的支持了环保行为. 我们发现拥有高环境态度的参与者积极的投入到各种关注环境的消费者行为中. 在本研究中, 考虑到价值导致环保主义和进一步证实先前的结果我们提供了测试跨文化差异的机会. 此外, 我们已测试了关于三个不同类型的环境行为的态度与行为的关系. 环境的态度和行为之间的路径的不同优势, 研究人员建议, 应考虑行为的特异性, 努力改善低的态度-行为的相关性. 最后, 本文阐明了随着对环境不断增长的关注, 人们生活中的绿色行为也不断的增加.

제주도 하천에 적용 가능한 지역환경기준 설정 (Establishment of Applicable Local Environmental Standards for Streams in Jeju Island)

  • 조은일
    • 한국환경과학회지
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    • 제24권1호
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    • pp.97-115
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    • 2015
  • For the purpose of protecting the health of citizens and creating a delightful environment, the Government shall establish the environmental standards, and make such standards keep their propriety according to any changes in environmental conditions. The Special Metropolitan City, Metropolitan City or Do may, in case where deemed necessary in view of the speciality of regional environments, set forth the separate environmental standards which are more expanded and strengthened than the environmental standards by the Municipal Ordinance of the relevant City/Do. The purpose of this study was for the management of stream waters of Jeju Island and proposed the appropriate Jeju local river environmental standards. Jeju-Do and Daejeon-si applies the Local River Environmental Standards in Korea. While each nation? circumstances and environment are different, for the most part, environmental standards and purposes of use are similar to those in Korea. Proposed Jeju River Local Environment Standards followed The River Environment Standards of Nation(Korea) for Living Environment Standards. Newly Strengthened Value is Cd, Carbon tetrachloride, 1,2-dichloroethene, Tetrachloroethylene(PCE) and add Items is Fluorine, Selenium, Phenol and Toluene for Human Health Protection.

구매, 사용, 처분단계에서 소비자의 환경보전행동 결정요인 분석 (The determinants of consumers' pro-environmental behavior in the stage of purchase, usage, and disposal)

  • 허경옥
    • 한국생활과학회지
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    • 제14권1호
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    • pp.81-94
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    • 2005
  • With an analysis of recent, nationwide data, this study figured out the level of consumers' pro-environmental behavior and investigated tile behavioral determinants in the hight of purchase, use, and disposal of pro-environmental goods. The major results are as below: Married consumers or consumers in their 40s were more likely to purchase pro-environmental goods. Consumers with high income-for example, over 3 million won per month-were less likely to purchase such goods. Married women or 40s/50s consumers tended not to buy used goods. Males than females, non-married than married, employed than unemployed had a higher pro-environmental behavior in the use stage. Furthermore, in the disposal stage, male than female, married than non-married, young than old, and consumers with low income than high income showed more active pro-environmental behavior. The purchasing behavior of pro-environmental goods was supported by both perspectives of rational behavior and social behavior. On tile other hand, the purchasing behavior of used goods was supported only by rational behavior perspective. It is also revealed that personal value perspective, along with the above two, influences the pro-environmental behavior in the stage of use and disposal. Overall, a high level of pro-environmental behavior was detected in such consumers as rational, public rule-abiding in favor of environmental policy, and also in consumers with strong family values or those with less materialistic value.

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Factors Influencing Environmental Disclosure: A Case Study of Manufacturing Companies in Indonesia

  • FUADAH, Luk Luk;SAFTIANA, Yulia;KALSUM, Umi;ARISMAN, Anton
    • The Journal of Asian Finance, Economics and Business
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    • 제8권9호
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    • pp.23-33
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    • 2021
  • The main objective of this research is to examine the effect of organizational culture, environmental uncertainty, and manager's personnel value on environmental disclosure through the environmental organizational structure of manufacturing companies on the Indonesia Stock Exchange. This research uses the structuration and contingency theory. The sample in this study focused on the level of heads or managers or directors of manufacturing companies listed on the Indonesia Stock Exchange. The research data was obtained through an online questionnaire distributed to heads or managers. The total sample of this study is 161 manufacturing companies. The data comprising of 64 respondents was completed and can be processed. Empirical testing used Structural Equation Modeling (SEM) through Partial Least Square (PLS). The result shows that environmental uncertainty and management personnel value have a positive effect on the environmental organizational structure, as well as the environmental organizational structure has a positive effect on the environmental disclosure. However, organizational culture has no effect on the environmental organizational structure. This research can provide benefits for manufacturing companies. The limitation include the low level of response from the respondents. Also the results cannot be generalized due to its specific focus on the manufacturing companies.