• Title/Summary/Keyword: physical resource

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Design of Compound Knowledge Repository for Recommendation System (추천시스템을 위한 복합지식저장소 설계)

  • Han, Jung-Soo;Kim, Gui-Jung
    • Journal of Digital Convergence
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    • v.10 no.11
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    • pp.427-432
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    • 2012
  • The article herein suggested a compound repository and a descriptive method to develop a compound knowledge process. A data target saved in a compound knowledge repository suggested in this article includes all compound knowledge meta data and digital resources, which can be divided into the three following factors according to the purpose: user roles, functional elements, and service ranges. The three factors are basic components to describe abstract models of repository. In this article, meta data of compound knowledge are defined by being classified into the two factors. A component stands for the property about a main agent, activity unit or resource that use and create knowledge, and a context presents the context in which knowledge object are included. An agent of the compound knowledge process performs classification, registration, and pattern information management of composite knowledge, and serves as data flow and processing between compound knowledge repository and user. The agent of the compound knowledge process consists of the following functions: warning to inform data search and extraction, data collection and output for data exchange in an distributed environment, storage and registration for data, request and transmission to call for physical material wanted after search of meta data. In this article, the construction of a compound knowledge repository for recommendation system to be developed can serve a role to enhance learning productivity through real-time visualization of timely knowledge by presenting well-put various contents to users in the field of industry to occur work and learning at the same time.

Comparative Study on the Impact Factors in Job Stress in Occupational Therapists Working in Korean: A Systematic Review and Meta-Analysis (국내 작업치료사의 직무스트레스 요인 비교 연구: 체계적 고찰과 메타분석)

  • Cha, Yu-Jin
    • The Journal of the Korea Contents Association
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    • v.12 no.6
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    • pp.380-389
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    • 2012
  • In this study, Systematic review and meta-analysis using the correlation coefficients was carried out to integrate precedent studies on factors affecting domestic occupational therapists' job stress. It aims at providing basic information resources of preventing and reducing stress of occupational therapists and effective counter-measurement to improve quality of occupational therapy and to establish efficient human resource management policy. Systematic review and meta-analysis were performed on eight thesis proven relevant to selection criteria in order to figure out correlation coefficients value by total, and factors correlation coefficients value. Also homogeneity test and publication bias test was performed too. The total correlation coefficients value of occupational therapists was .30 which was statistically significant. As to job stress factors, the organization related factor showed the highest correlation of coefficiency, followed by factors other than the organization related, physical environment, job related factor and personal factor. This research result can be used as a reference to prevent and reduce job stress of occupational therapists and to develop an effective measurement scheme.

Characteristics and long term variation trend of water mass in the coastal part of East Sea, Korea (동해연안 수괴의 특성과 장기변동 추이)

  • Yoon, Yi-Yong;Jung, So-Jung;Yoon, Sang-Chul
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.10 no.1
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    • pp.59-65
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    • 2007
  • Rapid variation of coastal ecosystem in the East Sea of Korea, such as fishery resource variation and subtropical chang of bentic flora, accordong to the global warming are actually noticed. In this study we try to identify the characterics of water mass existing in this coastal area and to consider the variation of their physical and chemical properties using data of temperature, salinity and dissolved oxygen obtained by National Fisheries Research & Development Institute from 1960 to 2005. The temperature of all water mass rise during last 45 years; the rise of North Korea Cold Water temperature (about $2.33^{\circ}C$) is 1.5 times higher than that of Tsushima warm water (about $1.6^{\circ}C$), and the temperature rise of Tsushima Surface Water, directly affected by climate chang is $2.57^{\circ}C$, higher than the atmospheric temperature rise during same period, indicating that subtropical change makes progress more rapidly in the coastal marine ecosystem than in the land ecosystem. Otherwise, the salinity in the surface water decrease $0.29\%_{\circ}$ during last 45 years due to the rising trend of rainfall with atmospheric temperature. The dissolved oxygen concentration in the all water mass make a decreasing trend. Specially for the North Korea Cold Water, the dissolved oxygen concentration diminish 0.021 mg/l per year and the decrease in the East Sea Proper Water indicate a change of inner water circulation system.

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A Study on Community-dwelling Elders with Dementia, their Primary Caregiver, and Living Environments (재가 치매노인의 주 수발자와 환경 실태)

  • Kim Nam Cho;Kim Jung Hee;Lim Young Mi
    • Journal of Korean Public Health Nursing
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    • v.16 no.1
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    • pp.13-29
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    • 2002
  • The purpose of this study was to describe about elders with dementia, their families, and their living environment by visiting the households where demented elders resided. The findings will be used as a basis to develop future individualized adjustment programs for demented elders and their families living in communities. The study participants were 64 demented elders and their families who were registered to a dementia counseling center at Nam-Gu community health center located in Inchon, Korea. Data were collected for two months, from May to June 2001. The length of data collection for each home visit ranged from 1.5 to 2.5 hours. Conclusion are as follows based on these study findings: Those demented elders had more than one chronic health problem in addition to their pre-existing dementia condition. Two thirds of the demented elders were not receiving any specific treatment for dementia. They showed a moderate level of independence in basic ADL, but were mostly residing at home because of lack of ability to perform more delicate and complicate routine daily activities by themselves. In addition, the primary caregivers were not well adjusted to the care-giving activities for their demented family members due to the lack of knowledge and information about dementia. The caregivers were mostly women including daughters-in-law, woman spouses and daughters, over a half of whom perceived their physical and mental health status as poor. Their image toward the demented elders was considerably negative. while their level of knowledge on dementia was moderate. The burden for the care-giving was high, whereas their coping method was passive. As the difference in image toward elderly before and after the onset of dementia in their family member increases, the caregiver burden also increased. The main resource of social support for the caregivers was their children. The caregivers showed high level of needs for knowledge and information on dementia, and day care service was the most preferred type of service by the caregivers. There was lack of safety in the living environments for the demented elders and their families, and in the surrounding environments to prevent dementia-related symptoms. Considering that home-based family care-giving is the most culturally appropriate model of providing care for the demented elders in Korea, we need to develop and apply an individualized adjustment program for the demented elders and their families.

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Nutritional Components and Physicochemical Properties of Lipids Extracted from Forest Resources (산림자원에서 추출한 유지자원의 영양성분 및 이화학적 특성 검토)

  • Kim, Mi-So;Park, Joon Hyung;Lim, Ho-Jeong;Kim, Da-Som;Kim, Hoe-Sung;Lee, Kyoung-Tae;Park, Yong Bae;Shin, Eui-Cheol
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.46 no.4
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    • pp.529-536
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    • 2017
  • Nutritional constituents and physicochemical properties of lipids of forest resources were studied in order to examine their practical utilization in the lipid industry. In this study, Garae, Dongback, Mougwi, and Muwhanja were chosen as sources of fat-soluble components. Fatty acid profiles of forest resources showed more than 80% polyunsaturated fatty acids in total fatty acids. For total tocopherol contents, Garae showed higher content than others; moreover, Dongback was a good source of ${\alpha}$-tocopherol. Phytosterols of forest resources ranged from $55.96{\pm}2.23$ to $194.94{\pm}21.42mg$/100 g, and Muwhanja showed the highest phytosterol contents. Chemical properties such as acid value, peroxide value, and p-anisidine value showed good oxidative stability of lipids of forest resources. For physical properties, browning intensity and color parameters were studied. Induction times, as an indicator of oxidative stability, were measured and ranged from $0.70{\pm}0.01$ to $18.40{\pm}1.02h$ in four forest resources. Taken together, contents of lipid constituents and physicochemical properties can be used as an important preliminary database for utilization of lipids of forest resources.

Job Analysis of Pediatric Occupational Therapists in Korea: Focused on Sensory Integration Intervention (아동작업치료사의 직무분석: 감각통합치료 중심으로)

  • Choi, Jeong-Sil;Hong, Eunkyoung
    • The Journal of Korean Academy of Sensory Integration
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    • v.15 no.2
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    • pp.1-21
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    • 2017
  • Objective : The aims of the this study is to identify job characteristics, to generate job description, and additionally to investigate duty task of the job for Korean pediatric occupational therapist focused on sensory integration intervention. Methods : In the first stage, job analysis of pediatric occupational therapist focused on sensory integration intervention was performed by an advisory committee consist of the DACUM panel. Through the job analysis, job description with definition was established. In the second stage, a survey was performed for 141 pediatric occupational therapist using a questionnaire based on the job description in order to investigate importance, frequency and difficulty of duty task and task elements of the job. This process was done from May to September 2017. Results : The job definition drew from this study was 'Pediatric occupational therapist provides occupational therapy services to children and adolescents to support occupational performance and social participation including daily activities and play". Through the job description established in this study, 9 duties (consulting, evaluation, intervention plan, intervention, document, education, self-development, management, and administration), 28 tasks and 169 task elements were drew. In the survey, among the duty tasks and task elements, 'ensure physical safety' and 'perform a session' were selected as the most important task, and 'ensure safety of children, sensory integrative equipment and environment' and 'prepare a safe environment' were selected as the most important element. Conclusion : This study defined job demands and characteristics of pediatric occupational therapist who performs sensory integration intervention. It is expected that this study can be used a resource to develop and/or improve educational program related.

Evaluation of Compaction and Thermal Characteristics of Recycled Aggregates for Backfilling Power Transmission Pipeline (송배전관로 되메움재로 활용하기 위한 국내 순환골재의 다짐 및 열적 특성 평가)

  • Wi, Ji-Hae;Hong, Sung-Yun;Lee, Dae-Soo;Park, Sang-Woo;Choi, Hang-Seok
    • Journal of the Korean Geotechnical Society
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    • v.27 no.7
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    • pp.17-33
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    • 2011
  • Recently, the utilization of recycled aggregates for backfilling a power transmission pipeline trench has been considered due to the issues of eco-friendly construction and a lack of natural aggregate resource. It is important to identify the physical and thermal properties of domestic recycled aggregates that can be used as a backfill material. This paper evaluated thermal properties of concrete-based recycled aggregates with various particle size distributions. The thermal properties of the recycled aggregates and river sand provided by local vendors were measured using the transient hot wire method and the transient needle probe method after performing the standard compaction test. The needle probe method considerably overestimated the thermal resistivity of recycled aggregates especially at the dry of optimum water content because of experiencing disturbance while the needle probe is being inserted into the specimen. Similar to silica sand, the thermal resistivity of recycled aggregates decreased when the water content increased at a given dry density. Also, this paper evaluated some of the existing prediction models for the thermal resistivity of recycled aggregates with the experimental data, and developed a new prediction model for recycled aggregates. This study shows that recycled aggregates can be a promising backfill material substituting for natural aggregates when backfilling the power transmission pipeline trench.

Ethylbenzene Separation from Ethylbenzene/p-xylene Mixture with MFI-type Zeolite Membranes (MFI형 제올라이트 분리막을 이용한 에틸벤젠/파라자일렌 분리에 대한 연구)

  • Lee, Gi-Cheon;Jeon, Yukwon;Chu, Young Hwan;Choi, Seonghwan;Seo, Young-Jong;Shul, Yong-Gun
    • Korean Chemical Engineering Research
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    • v.51 no.4
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    • pp.476-481
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    • 2013
  • Ethylbenzene (EB) which has a similar physical properties with p-xylene (pX) was separated from EB/pX mixture by using MFI-type zeolite (TS-1, ZSM-5, and Silicalite-1) coated membranes. The zeolites were synthesized by microwave method to reduce the synthesis time and uniformly formed zeolite particles were coated on the ${\alpha}$-almina tubular support with a thickness of $3-4{\mu}m$. Separation factor and permeation flux of the synthesized zeolite coated membranes were measured to survey the best performance of ethylbenzene separation from different composition of EB/pX mixtures. When the EB/pX mixture of 5:5 molar ratio applied for the separation experiment, it represented the highest separation factor. We also have studied about the effect of the atomic composition of zeolites on the separation performance within the temperature range from 160 to $220^{\circ}C$. TS-1 showed the highest permeation flux of $1,666mol/m^{2*}s^*Pa$ and Silicate-1 showed the highest separation factor of 1.73 at $200^{\circ}C$ respectively.

Comparison of the Practical Use Condition of e-finance Portal Site between Korea and U.S.A. (한.미간 e-finance 금융포털사이트의 활용실태 비교)

  • Kim Dong-Gyoon;Cha Soon-Kwean
    • Management & Information Systems Review
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    • v.7
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    • pp.21-51
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    • 2001
  • For increasing the competitiveness and efficiency of Korea's finance industry under the new e-finance paradigm, this paper compared the practical use of finance portal site' on service parts and stage between Korea and U.S.A.. The services which can be served from site are banking, mortgage and credit loan, stock, card, retirement tax, PFM(Personal Finance Management), EBPP(Electronic Bill Presentment and Payment) and Account Aggregation and so on. The stage of site can be divided as the information provide stage which only gives information about service parts, on-line transaction stage which real-time transaction is possibile and PFM services provide stage according to development process. As a result, the beginning of finance portal service in Korea was lated about 10years and more than it of U.S.A. So the development stage of domestic portal site is still staying in the first step and the providing services and contents or business model development parts are also in the same stage than U.S.A. Resides, Korea's sites mainly focus on their first service parts even though they recently aim internet finance portal, and provide not real time transaction but finance information. On the other hand, the U.S.A. site support substantially not only various on-line transactions but also distinctive personal services like PFM(Personal Finance Management), EBPP(Electronic Bill Presentment and Payment), Account Aggregation and Trans-account, brokerage, education center, mortgage loan, mutual fund, option, pension fund and IPOs and so on. Thus, the site of Korea need to establish real type of internet finance portal which provides one-stop services on every type of finance to customers in the real time and also require the strategic integration among finance institutions. The next turn, they need to build information system and education center to give best satisfaction to customers and acquire customer information and marker environment changes and need to provide distinctive services to quality customers throughout database from this. Also the site should provide various type of banking services which refereed above like PEM, EBPP and education center etc, and the government of Korea should support the building of IT infrastructure to Physical, legal, systematic, sociocultural, technical and human resource sections. This paper provided the future movement direction of the domestic finance portal through comparison and analysis on the practical use of it between Korea and U.S.A. and also wanted to contribute for developing and reading of Korea finance portal in the new era of the finance paradigm.

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Immunomodulating Effects of Red Ginseng on the Regulation of Cytokine Release in vivo (홍삼의 생체 내 사이토카인 분비에 대한 면역조절효과)

  • Sohn, Eun-Hwa;Yoon, Jae Woong;Koo, Hyun Jung;Park, Dae Won;Jeong, Yong Joon;NamKoong, Seung;Han, Hyo-Sang;Kang, Se Chan
    • Korean Journal of Plant Resources
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    • v.25 no.5
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    • pp.578-585
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    • 2012
  • Cytokines released from innate immune cells play key roles in the regulation of the immune response. Red Ginseng (RG, steamed and dried root of Panax ginseng C.A. Meyer) is known to show different pharmacological effects by changed composition of saponins compared with Panax Ginseng. In this study, we examined the immunomodulatory effects of RG on the regulation of cytokine release in mice. RG was injected i.p at doses of 0.5, 5 and 50 mg/kg for 6 weeks. We assessed that the weight index of immune organs such as thymus, and spleen, and the mitogen blastogenesis of splenocytes. We also determined the levels of circulating cytokines in serum from RG-treated mice using ELISA assay. The weight index of thymus and spleen, and proliferation of mitogen response of splenocytes have increased in the RG-injected groups. In addition, the levels of IFN-${\gamma}$, TNF-${\alpha}$, IL-6, IL-12 and IL-2 concentrations have significantly increased in the serum of RG-treated mice, but that of IL-10 has not. These results suggest that RG has immune stimulating effects and could be useful as a immunoregulator of circulating cytokine release in vivo.