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        검색결과 2,298

        1541.
        2021.01 KCI 등재 서비스 종료(열람 제한)
        This study analyzed the status of climate-change indicator plants native to the main islands of the Korean peninsula, while elucidating their distribution characteristics. Information on flora from over 129 island locations, comprising more than 100 species of native plants, was collected, compiled into a database, and utilized as raw data. The distribution of 193 climate-change indicator plants was confirmed. The distribution area of broadleaf evergreen trees and ferns, including Mallotus japonicus and Cyrtomium falcatum, was relatively wide. In contrast, the distribution of common northern plants such as Corydalis turtschaninovii and Malus baccata was limited. If global warming persists, northern plant distribution is expected to decrease rapidly in the Korean Peninsula island region, while the northern limit line of the southern plants is expected to migrate further northward. During this process, it is likely that the plant congregation structure and species diversity within the island region will change dynamically. In this study, comparative analyses between species and regions were conducted by assessing the relative frequency of their occurrence, and six types of botanical geographic distribution patterns were noted.
        1542.
        2020.12 KCI 등재 서비스 종료(열람 제한)
        This study analyzed future projections on daily mean values and extremes for temperature and daily precipitation over Seoul metropolitan city using bias-corrected high-resolution multi-regional climate models. The factors of uncertainty for the future projection of climate variables were defined. In the time series analysis of future projections for regional climate models, the average daily temperature and the number of days of the hot day-hot night were predicted to have a stable trend in the RCP2.6 scenario, and showed a tendency to increase continuously in the RCP8.5 scenario. The daily mean precipitation and RX1day (annual daily maximum precipitation) had large annual variabilities in the models. In the estimation of the fraction of total variance, the daily mean temperature was dominated by the internal variability in the early 21st century and the most contributing to the scenario uncertainty in the late 21st century. The daily mean precipitation showed a remarkable contribution from the internal variability over the entire period. The number of days of the hot day-hot night showed a similar contribution pattern to that of the daily mean temperature. For the RX1day, the internal variability dominated over the entire period, and the scenario uncertainty had little contribution. This study will help establish more scientific climate change adaptation policies by providing the uncertainty information for future climate change projection.
        1543.
        2020.11 KCI 등재 SCOPUS 서비스 종료(열람 제한)
        Vietnam is conducting an export-led growth model and labour-intensive industries contributing majorly to the total export value. In the context of Industry 4.0, the labour-based industries are significantly affected; hence, enhancing productivity is the key measure to maintain these industries. The garment industry contributes significantly to the total export value of Vietnam. Based on meta-frontier framework, the approach of data envelopment analysis is used to measure technical efficiency of Vietnamese garment firms and the global Malmquist TFP index is utilised to identify productivity change and its components including efficiency, technology and technical gaps between different groups of firms. The data of Vietnamese garment firms from 2013 to 2018 collected from the Vietnam General Statistic Office is used in this study. The results show that: (i) The total factor productivity of Vietnamese garment firms growth, technical progress is the main contributor; (ii) The private garment sector is the leading group; (iii) There is a large technological gap among Vietnamese garment sectors. The private and FDI garment firms have experienced a growth in all components of total factor productivity change. Meanwhile, technological progress change is the main reason to constrain the productivity growth of state-owned garment firms.
        1544.
        2020.11 KCI 등재 SCOPUS 서비스 종료(열람 제한)
        Commercial banks play an important role as the main source of funding in the transition process of Vietnam as a market economy. As a result, enhancing the efficiency and productivity of Vietnamese banks can decrease the lending cost for individuals and enterprises. This study is to measure and analyze the productivity change of Vietnamese banking system in different ownership cohorts and sources of this change during the period of restructuring (2011-2019). The Hicks-Moorsteen total factor productivity index is utilised to measure the productivity change and to identify the sources of this change. For an empirical analysis, the data of 28 Vietnamese commercial banks from 2011 to 2018 is collected from their financial statements including balance sheets and income statements. The results show an increase of Vietnamese bank productivity due to the technological progress. While foreign and joint-venture banks are the most advanced cohort, stateowned banks have the lowest rate of productivity growth. The restructuring program negatively impacts scale efficiency and this measure attributes to a decline in the overall efficiency of the banks. We also found that state-owned commercial banks are the most efficient group in the sense that they can achieve the maximal level of revenue from a given amount of expense.
        1545.
        2020.11 KCI 등재 SCOPUS 서비스 종료(열람 제한)
        The purpose of this paper is to uncover whether and how contextual factors (information exchange, participation, trust in management, and training), relate to resistance to change. It also explores the mediating effect of perceived impact of change on the relations between contextual factors and resistance to change. This study is conducted in several manufacturing plants in food processing industry in Vietnam, which is implementing a top-down large-scale change – Lean transformation, adopting Total Productive Maintenance (TPM) program, to be specific. The findings suggest that all four contextual factors are negatively associated with resistance to change, in which training had the strongest impact. Also, the perceived change impact partially mediates the relationships between the four contextual factors and resistance to change. The practical implications of this paper are that employees who receive adequate, timely and useful information relating to change are less likely to show opposing behaviors towards change. Fostering trust in management among employees, and employee involvement in decisionmaking, also have a significant influence when addressing employee resistance to change. Employees who are well-trained, well-equipped with tools and knowledge about the change, are less likely to resist as they view the benefits of changes more significant than the risks.
        1546.
        2020.09 KCI 등재 서비스 종료(열람 제한)
        Due to recent heavy rain events, there are increasing demands for adapting infrastructure design, including drainage facilities in urban basins. Therefore, a clear definition of urban rainfall must be provided; however, currently, such a definition is unavailable. In this study, urban rainfall is defined as a rainfall event that has the potential to cause water-related disasters such as floods and landslides in urban areas. Moreover, based on design rainfall, these disasters are defined as those that causes excess design flooding due to certain rainfall events. These heavy rain scenarios require that the design of various urban rainfall facilities consider design rainfall in the target years of their life cycle, for disaster prevention. The average frequency of heavy rain in each region, inland and coastal areas, was analyzed through a frequency analysis of the highest annual rainfall in the past year. The potential change in future rainfall intensity changes the service level of the infrastructure related to hand-to-hand construction; therefore, the target year and design rainfall considering the climate change premium were presented. Finally, the change in dimensional safety according to the RCP8.5 climate change scenario was predicted.
        1547.
        2020.09 KCI 등재 서비스 종료(열람 제한)
        This study is about the change of Inuit traditional culture. Inuit has their specific culture due to the Arctic’s harsh environment. But recently, because of the climate change and newcomers, traditional culture has changed. Hunting, the base of Inuit’s traditional culture decreased and was getting hard. And shelter and transportation for hunting has been modified. According to the change of hunting, food and adoption culture also changed. Inuit is in a situation to consume junk food and processed food instead of fresh food. Those food induce many problems to Inuit including health. And Inuit trade the food, not share. It means the community spirit weakened. Reduction of the importance of IQ (Inuit Qaujimajatuqangit) and the role of the senior also contributes to the weakening of community spirit. Inuit adopt non-Inuit child and adopt the child according to the law. It makes Inuit difficult to adopt child. As a result, climate change and newcomers makes today’s Inuit culture. Therefore, we have to know climate change and newcomers to understand the culture of the Arctic and residents.
        1548.
        2020.08 KCI 등재 서비스 종료(열람 제한)
        목적: 본 연구는 신체의 중량 변화가 제자리높이뛰기 과제에 대한 어포던스 지각에 미치는 영향을 검증하는데 목적이 있다. 방법: 연구 참여자는 20대 성인 남/여 80명을 대상으로 하였으며, 통제집단, 체중 10% 중량착용 집단, 체중 20% 중량착용 집단, 체중 30% 중량착용 집단에 20명씩 무작위 배정되었다. 실험과제는 제자리높이뛰기 과제에서 지각된 최대 점프높이(PRH)와 실제 최대 점프높이(ARH)를 측정하는 것이며 사전검사와 본 검사로 진행 되었다. 중량 변화는 PRH와 ARH의 측정 단계에 따라 중량 착용, 중량 제거, 중량 경험으로 구분하여 분석하였다. 결과: 중량 착용과 제거 시 중량변화에 따른 지각측정의 변화는 중량의 크기에 따라 차이가 나타나지 않았다. 또한 중량 크기에 상관없이 중량 경험은 최대 점프높이 지각에 영향을 미치지 않았다. 어포던스 지각의 정확성은 중량조건의 크기가 증가함에 따라 감소하였고 중량 착용에 따른 최대 점프높이 지각과 중량 착용 시 행동능력의 차이는 점차 증가하였다. 결론: 신체의 착용된 중량의 변화는 제자리높이뛰기에 대한 행동능력을 변화시키고 이에 따라 어포던스 지각에 영향을 미치는 것으로 확인되었다.
        1549.
        2020.08 서비스 종료(열람 제한)
        The relationship between global climate change and international trade affects not only the sustainable development of the earth's ecological environment, but also the development trend of the world economy. we analyze the published papers in WOS database by CiteSpace sofeware. The basic statistical results are: (1) there is no consensus on the relationship between climate change and international trade, (2) the United States, China and the United Kingdom are the main contributors. The research front mainly focuses on four aspects: (1) the flow direction of carbon leakage in international trade,(2) virtual water trade caused by climate change,(3) trade policy and uncertainty of sustainable development,(4) main problems hindering low carbon technology cooperation.
        1550.
        2020.07 KCI 등재 서비스 종료(열람 제한)
        In order to protect the lives and property of citizens, the central and local governments are responding by enacting municipal ordinances and regulations as the frequency of extreme weather conditions due to climate change increases and intensity increases gradually. Accordingly, the basic contents and strategies of domestic and foreign policies to cope with cold and heat waves were reviewed, referring to measures suitable for application to the Daegu metropolitan area. In addition, it is intended to provide a policy alternative to Daegu metropolitan area to minimize damage from extreme weather by identifying the current status, characteristics, and future prospects of extreme weather in Daegu metropolitan area. Since the damage caused by the cold wave in Daegu area is not as great as that of other regions, it is urgent to come up with cold wave measures for the health and transportation sectors, and to come up with measures against the heat wave as the damage caused by the heat wave is the most serious in the country. Also we will identify spatial characteristics so that the districts and counties with high vulnerability to extreme weather can be identified and implemented first, and present civic life-oriented facilities and civic action guidelines to overcome cold and heat waves.
        1551.
        2020.06 KCI 등재 서비스 종료(열람 제한)
        2008년 9월 미국의 서브프라임 모기지 부실에 의한 리먼브러더스 사태로 시작된 글로벌 금융위기가 세계 건화물해운시장에도 영향을 끼쳐 건화물 물동량 감소와 선박의 공급과잉으로 세계 건화물해운산업과 조선산업에 심각한 불황을 유발하였다. 이러한 상황에서, 국제 경제의 동향에 민감한 한국경제의 구조 여건상 한국의 건화물선해운기업(또는 건화물선사)도 2008년 이후 현재까지 어렵게 경영을 헤쳐가고 있다. 이와 같은 심각한 불황과 그 여파로 건화물선사의 수익이 급감 할 수밖에 없게 되었으며 열악한 재무구조로 인해 경영이 부실해지고 급기야 도산과 파산하는 해운기업이 속출하게 되었다.이러한 점을 고려하여 동 연구는 2008년 글로벌 금융위기를 기점으로 2005년부터 2007 년까지와 그 후 2010년부터 2012년까지로 기간을 선정한 다음 한국의 외항 건화물 해운기업을 건전기업과 부실기업으로 구분하여 두 기업집 단 간의 주요 재무비율에 어떠한 변화와 차이가 있었는지 t 검정을 통해 분석하였다. 실증분석에서 두 집단 간에 차이를 보인 주요 재무비율 로는 수익성비율과 성장성비율이다. 본 연구의 의의는 첫째, 해운기업 경영에도 역시 재무건전성에 대한 체계적인 관리가 중요하며 이를 위해 수익성이 높은 화물을 계약하는 영업전략이 중요하다. 둘째, 선박의 효율적인 운항 및 관리로 성장성이 지속되는 기업으로 경영해야 한다는 것이다.
        1552.
        2020.06 KCI 등재 서비스 종료(열람 제한)
        The aim of this research is to analyze the level of food insecurity of Inuit in the area of Nunavut territory in Canada. As a result, we were able to find out the following facts. First, nearly half of them felt hungry due to lack of food as of 2018. Second, the food situation was getting worse year by year. In the four years from 2014 to 2018, the growth rate of food insecurity households reached 22.0%. Third, proportion of children under 18 who lived in food insecure households reached 78.7%. Starving children had low self-esteem, suffered from depression and had a very high suicide rate. Fourth, most of Inuit’s food tables were filled with store-bought foods, rather than country foods. Fifth, the food sovereignty of Inuit community was seriously threatened with local capacity of self-sufficiency being low, market-dependent being high, and political exclusion from the policy decision being severe. Two things needed to be kept in mind in order to solve this Inuit’s food insecurity efficiently. First, in addition to environmental factors such as climate change, food issues are interconnected and affected by socioeconomic, cultural and policy factors. Second, policy intervention in the food issues should be centered on the Inuit party in accordance with human rights and food sovereignty perspectives.
        1553.
        2020.03 KCI 등재 서비스 종료(열람 제한)
        Purpose: Agriculture, which is heavily influenced by climate conditions, is one of the industries most affected by climate change. In this respect, various studies on the impact of climate change on the agricultural market have been conducted. Since climate change is a long-term phenomenon for more than a decade, long-term projections of agricultural prices as well as climate variables are needed to properly analyze the impact of climate change on the agricultural market. However, these long-term price projections are often major constraints on studies of climate changes. The purpose of this study is to analyze the impacts of climate changes on the Korean onion market using ex-post analysis approach in order to avoid the difficulties of long-term price projections. Research design, data and methodology: This study develops an annual dynamic partial equilibrium model of Korean onion market. The behavioral equations of the model were estimated by OLS based on the annual data from 1988 to 2018. The modelling system is first simulated to have actual onion market conditions from 2014 to 2018 as a baseline and then compared it to the scenario assuming the climatic conditions under RCP8.5 over the same period. Scenario analyses were simulated by both comparative static and dynamic approach to evaluate the differences between the two approaches. Results: According to the empirical results, if the climate conditions under RCP8.5 were applied from 2014 to 2018, the yield of onion would increase by about 4%, and the price of onion would decrease from 3.7% to 17.4%. In addition, the average price fluctuation rate over the five years under RCP8.5 climate conditions is 56%, which is more volatile than 46% under actual climate conditions. Empirical results also show that the price decreases have been alleviated in dynamic model compared with comparative static model. Conclusions: Empirical results show that climate change is expected to increase onion yields and reduce onion prices. Therefore, the appropriate countermeasures against climate change in Korean onion market should be found in the stabilization of supply and demand for price stabilization rather than technical aspects such as the development of new varieties to increase productivity.
        1554.
        2020.03 KCI 등재 서비스 종료(열람 제한)
        소재기술, 표면처리기술 등의 발전에 따라 제품 및 공공시설물의 CMF(색채, 재질, 마감) 수준은 지속적인 발전을 거듭해 왔다. 특히, 민간부문 중심의 제품디자인 분야와 더불어 정부 및 지방자치단체를 중심으로 추진되고 있는 공공디자인 분야에서도 이러한 CMF 디자인의 발전과 중요성에 대한 인식은 높아지고 있는 상황이다. 그러나 이러한 인식과 수준의 발전 에도 불구하고 제품 및 공공시설물의 CMF 개발이 사용환경과의 이질성, 사용자를 위한 사용성과의 연계 부족 및 디자인 개발의 마지막 단계에서 장식적 개념으로 국한하여 개발되는 이유 등으로 인해 사용자에게 물리적, 감성적 가치를 제공하지 못하는 문제점을 지속적으로 나타내고 있다. 이에 본 연구에서는 제품, 공공시설물 사례 및 연구자 본인의 디자인 개발 사례를 통해 CMF 개발의 방향 설정에 있어 주요문제점 및 원인을 분석하고 문제해결을 위한 구체적이고 실질적인 개발 방향을 제안하였다. 이를 위해, 제품 및 공공시설물 CMF 개발의 주요문제점을 색채, 재질, 패턴 등을 포함한 외관디자인 관점, 생산과 설치 및 유지관리의 효율성 등을 포함하는 공급자 관점, 사용성과 사용환경의 변화에 따른 사용자 관점으로 나누어 문제점 및 원인을 분석하였다. 이와 같은 관점에 따른 분석과정을 거쳐 지속적으로 사용이 가능하고 사용자에게 본연의 가치를 제공할 수 있는 CMF 디자인 개발을 위해 사용공간 및 설치공간과의 조화를 위한 절제된 칼라, 재질의 적용이 외관디자인 관점에서 중요하고 대상의 구조적 접근에 따른 부분별 생산 및 설치 방식에 맞는 재질의 분리 적용을 제안하였 다. 또한 사용자를 위한 사용환경 변화와 물리적, 감성적 사용성에 대한 고려가 필요하며 마지막으로 제품, 공공시설물의 초기 디자인 단계부터 CMF 개발 방향을 함께 고려하여 추진하는 CMF 개발 프로세스의 변화 필요성 및 변화된 프로세스를 연구의 결론으로 함께 제안하였다.
        1555.
        2020.03 KCI 등재 서비스 종료(열람 제한)
        목적: 본 연구의 목적은 생리조절과 인지조절 심리기술훈련이 시합 스트레스 상황에서 선수들의 심리 및 동기체 계에 영향을 미치는 방식을 전두엽 좌우뇌 비대칭을 통해 조사하는 것이다. 방법: 연구대상자는 대학 남자 축구 선수 30명으로, 생리조절군 8명, 인지조절군 8명, 통제군에 14명씩 무작위 할당되었다. 심리기술훈련은 3주간 단 체훈련 3회기, 개인상담 3회기로 총 6회기가 진행되었다. 심리기술훈련 전과 후 휴식과 스트레스 회상 조건에서 심리상태와 전두엽 좌우뇌 비대칭값(Frontal EEG Asymmetry Score: FAS)이 측정되었다. 결과: 스트레스 조건에서 측정된 불안, 스트레스는 생리조절, 인지조절 집단 모두 훈련 전보다 후에 감소하였으나, 통제집단에서는 차이가 없었다. FAS 분석결과, 생리조절군의 FAS는 훈련 후 Fp2의 활성화 감소에 의해 음(-)의 방향으로 하락한 반면, 인지조절군의 FAS는 훈련 후 Fp2의 활성화 증가에 의해 양(+)의 방향으로 상승하였다. 이상적인 심리상태 유도를 위해, 생리조절훈련은 철회동기체계를 작동시켜 스트레스 상황을 회피하는 방식을, 인지조절 훈련은 철회 동기를 감소시켜 상황에 대한 적극대처 방식으로의 전환을 보였다. 결론: 본 연구는 심리기술훈련의 유형과 방식에 따라 심리변화를 유도하는 과정과 동기체계에 차이가 있을 수 있음을 확인하였다.
        1556.
        2020.02 KCI 등재 SCOPUS 서비스 종료(열람 제한)
        The midst competition makes a brand all together with its offering products and services is becoming a crucial element for company existence. This requires direct involvement from internal organizational to develop effective strategic branding. According to Asosiasi Penyelenggara Internet Indonesia (APJII), Indonesia's internet penetration is among the highest in Asia. The purpose of this research is to improve the strategic role of brand orientation within Internet Service Provider (ISP) for maximizing return on the company's financial and non-financial benefits by proposing organization change readiness variable. The data collection is taken using an online survey with a non-parametric sampling method and collected 68 qualified respondents for data analysis using SEM-PLS (Structural Equation Modeling with Partial Least Square). The result indicates partial hypotheses on the constructed model between variables brand orientation, brand commitment, and internal brand equity is acceptable. Another finding is stated hypotheses on organization change readiness as moderation is not accepted and means there is no significance to the constructed model. The main conclusion resumes associative human memory can shape up organization change readiness inside internal toward then brand. Relevant cues generate information received in the human brain then will create common associative and becoming social identity on internal brand equity.
        1557.
        2020.02 KCI 등재 서비스 종료(열람 제한)
        The national parks of South Korea take up an area of 6,726 km2, which accounts for 6.7% of the national land. They are national conservation areas with their area made up of 59.1% of land (3,972.6 km2) and 40.9% of seawaters (2,753.7 km2). And in 2019, the national parks are classified by type into 17 mountainous, 4 maritime or coastal, and 1 historical site. Here, the maritime or coastal nation parks are lately spotlighted as landmarks in maritime tourism. However, the area of the maritime or coastal national parks is continuously dwindling due to conflicts between the residents in the parks and Korea national park service, the continued pressure with respect to the regional tourism development and private investments, and the abolition of parks in relation to allegedly breached private properties. This study identifies the issues with the operation and management of national parks as caused by the abolition of parks and the reduction of areas, and goes from there to do research with the aim of suggesting an institutionalized improvement plan with a view to more useful operation and management of the maritime or coastal national parks. As a result, the natural resources in the sea and on land should be surveyed again to establish the standard for use-specific zoning and reorganize the park areas in adjusting the national park areas. Second, the use-specific districts need to be reviewed for their reorganization that meets the designation requirements by focusing on the characteristics of the different national parks with a view to ensuring reasonable natural conservation in the maritime or coastal national parks. Third, various support facilities for residents such as public path, lodgings, and rentals need to be created to reduce the conflicts between Korea national park service and those who live in the parks.
        1558.
        2020.02 KCI 등재 서비스 종료(열람 제한)
        Seasonal changes in the CO2 fixation rate and water-use efficiency in the leaves of six evergreen and two deciduous broad-leaved tree species on Jeju Island, Korea, were measured using a portable photosynthesis analyzer, to identify which species are most efficient in taking up CO2 from the air. The CO2 fixation rate was high in the deciduous species in spring and summer and decreased in fall, whereas it was high in the evergreen species in summer and fall and decreased in winter. The rate remained high in the deciduous tree Prunus yedoensis from spring to fall (> 7.1 μmol CO2/m2/s) and in two evergreen trees, Castanopsis cuspidata var. sieboldii and Cinnamomum camphora, in summer and fall (7.0 9.9 μmol CO2/m2/s). Therefore, these tree species fix atmospheric CO2 effectively. The water-use efficiency was higher in evergreen species than in deciduous species regardless of the season. Exceptionally, it was high in the deciduous species Zelkova serrata in spring and summer (> 100 μmol CO2/mol H2O), suggesting that Z. serrata is a useful tree for dry conditions due to its tolerance of water stress. The regressions of the CO2 fixation rate versus the evaporation rate and stomatal conductance were linear and non-linear, respectively. This suggests that the stomatal activity of leaves plays an important part in CO2 fixation of plants. In conclusion, C. cuspidata var. sieboldii, C. camphora, and P. yedoensis should be planted along roads or in urban spaces for the greening of cities and mitigation of CO2 concentrations in the air.
        1559.
        2020.01 KCI 등재 서비스 종료(열람 제한)
        2015 개정 초등 사회과 교육과정은 세계 변화를 어떻게 해석하고 반영하였는가? 본고는 이 문제를 3, 4, 5학년의 역사 영역을 중심으로 분석했다. 특히 사회과 교육과정 구성 원리로서 분산 배치, 환경확대법, 통합적 접근, 그리고 시각의 문제를 살펴보았다. 본고는 2015 개정 초등 사회과의 역사 영역이 세계가 네트워크로 연결되면서 공간의 개념이 변하고 정체성의 형성의 토대가 달라지고 있는 상황, 그리고 한국이 다문화 사회로 전환되고 있는 상황에 역행하는 방향에서 3 -6 학년 학습 내용이 구성되고 있음을 비판했다. 그리고 사회과 교육과정 내용 조직의 원칙인 분산 배치, 환경확대법에 대한 재고와 융통성 있는 적용을 제안했다. 또한 최근 학문융합 담론에 기초하여 사회과 통합적 접근을 재개념화하고 역사 통합적 접근에서는 과거와 현재의 문화적 거리를 인식할 수 있게 하는 것이 중요하다고 강조했다.
        1560.
        2020.01 KCI 등재 서비스 종료(열람 제한)
        Asthmatics are more susceptible to fine particulate matters (PM2.5), compared to the general population. It has been reported that indoor PM2.5 is mainly generated by combustion of fossil fuels, meat or fish In particular, asthmatics are known to be more susceptible to indoor PM2.5 because 65 ∼ 95% of child or adult asthmatics stay inside the house. Thus, understanding the association between indoor activity patterns and variations in indoor PM2.5 levels is important. The purpose of this study is to determine the distribution of hourly indoor PM2.5 concentrations in asthmatics’ homes, and to evaluate its association with pan-frying cooking activity patterns, the most common PM2.5 emission related activity. From November 2017 to February 2018, real-time PM2.5 concentrations were measured in the living room of each asthmatic’s house (n = 35) for three weeks at 1 minute intervals. At the same time, self-reported daily activity patterns, hourly proportion (%) of cooking activities, were also recorded every hour over three weeks for each patient. In this study, we provided quantitative evidence that the distribution patterns of indoor hourly PM2.5 concentrations were associated with indoor cooking activities, especially in the homes of adult asthmatics. In addition, we observed that PM2.5 emitted by pan-frying could maintain even over up to 2 hour lagtime.