• Title/Summary/Keyword: inaccessibility

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Efficient Energy and Position Aware Routing Protocol for Wireless Sensor Networks

  • Shivalingagowda, Chaya;Jayasree, P.V.Y;Sah, Dinesh.K.
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.14 no.5
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    • pp.1929-1950
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    • 2020
  • Reliable and secure data transmission in the application environment assisted by the wireless sensor network is one of the major challenges. Problem like blind forwarding and data inaccessibility affect the efficiency of overall infrastructure performance. This paper proposes routing protocol for forwarding and error recovery during packet loss. The same is achieved by energy and hops distance-based formulation of the routing mechanism. The reachability of the intermediate node to the source node is the major factor that helps in improving the lifetime of the network. On the other hand, intelligent hop selection increases the reliability over continuous data transmission. The number of hop count is factor of hop weight and available energy of the node. The comparison over the previous state of the art using QualNet-7.4 network simulator shows the effectiveness of proposed work in terms of overall energy conservation of network and reliable data delivery. The simulation results also show the elimination of blind forwarding and data inaccessibility.

Obstacles to Accessing Finance by Small Business Operators in the Buffalo City Metropolitan Municipality

  • Chimucheka, Tendai
    • Asian Journal of Business Environment
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    • v.3 no.2
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    • pp.23-29
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    • 2013
  • Purpose - The study investigates the obstacles faced by small business owners (SBOs) in accessing finance in the Buffalo City Metropolitan Municipality. The study aims to identify the causes of inaccessibility to finance for SBOs, investigate the role of government agencies in supporting SBOs, assess the extent to which banks support SMMEs, and suggest solutions to ease the challenge of inaccessibility of finance. Research design, data, methodology -We used a triangulation research design, wherein SMME owners and managers in the Buffalo City Metropolitan Municipality were the target population. We used simple random sampling techniques to select respondents, and conducted in-depth interviews to collect qualitative data. Results - We analyzed quantitative data using descriptive statistics, Chi-square tests, and factor analysis. The qualitative data was analyzed using content analysis. The study identifies and discusses the obstacles in accessing finance; the main among which are the lack of collateral security, poor business plans, lack of knowledge, and lack of financial deposit. Conclusions -We urge the banks, government, and government agencies to support the SMME sector, for it remains the economic engine of many African countries and helps in reducing the impact of socio-economic challenges, like unemployment and poverty.

혈액정화장치의 현황과 문제점

  • 박한철
    • Journal of Biomedical Engineering Research
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    • v.10 no.2
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    • pp.102-105
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    • 1989
  • In electrical impedance tomography(EIT), we use boundary current and voltage measurements toprovide the information about the cross-sectional distribution of electrical impedance or resistivity. One of the major problems in EIT has been the inaccessibility of internal voltage or current data in finding the internal impedance values. We propose a new image reconstruction method using internal current density data measured by NMR. We obtained a two-dimensional current density distribution within a phantom by processing the real and imaginary MR images from a 4.77 NMR machine. We implemented a resistivity mage reconstruction algorithm using the finite element method and sensitivity matrix. We presented computer simulation results of the mage reconstruction algorithm and furture direction of the research.

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Transabdominal follicular aspiration in an in vitro fertilization cycle: experiences with an unusual but necessary intervention in a resource-limited setting

  • Osemwenkha, Abieyuwa;Osaikhuwuomwan, James
    • Clinical and Experimental Reproductive Medicine
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    • v.43 no.1
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    • pp.54-57
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    • 2016
  • Controlled ovarian hyperstimulation is one of the major steps of in vitro fertilization. The inaccessibility or non-visualization of developing follicles on transvaginal sonography (the preferred imaging method) may be misjudged as a poor response, resulting in cycle cancellation. It is necessary to scrupulously appraise proxy indicators for ovarian response, such as estradiol levels, endometrial thickness, and other individual clinical characteristics. This can prompt meticulous transabdominal ultrasound follicular monitoring and oocyte retrieval with the goal of averting cycle cancellation and improving treatment outcomes.

An Exploratory Research on Intellectual Capital Management: Case Study for A Research Institute (지적자본경영 전망에 관한 탐색적 연구: A연구원 사례를 중심으로)

  • Kim, Su Jung;Kim, Seung Chul
    • Knowledge Management Research
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    • v.12 no.4
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    • pp.91-119
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    • 2011
  • Compared to the industrial society, the knowledge-based economy of the 21st century has placed importance on intellectual capital as a sustainable competitive advantage of an organization. The ownership, creation, and interaction of intellectual capital is emerging as the main challenges of the management and, moreover, it might extend to the issue of intellectual capital management. This research found that the exploitation and sharing of knowledge was more efficient in a networked organization through a case study for A research institute, which attempted intellectual capital management domestically for the first time. The contribution of this exploratory research is to suggest new perspectives on the ownership of intangible asset, the evaluation of knowledge-based product, and the competitive advantage and complementarity of an organization in the knowledge-based economy. The limitation is that this research is just exploratory due to the inaccessibility of data. If the intellectual capital management would be more common, the diverse researches should be empirically carried out.

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Sucrose-permeability Induced by Reconstituted Connexin32 in Liposomes.

  • Rhee, Senng-Keun;Hong, Eun-Jnng
    • BMB Reports
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    • v.28 no.2
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    • pp.184-190
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    • 1995
  • Functional study of the gap junction channel has been hindered by its inaccessibility in situ. Identification of forms of this channel in artificial membrane has been elusive because of the lack of identifying channel physiology. Connexin32 forms gap junction channels between neighboring cells in rat liver. Connexin32 was affinity-purified using a monoclonal antibody and reconstituted into artificial phospholipid vesicles. The reconstituted connexin32 formed channels through the vesicle membrane that were permeable to sucrose (Stokes radius: $5{\AA}$). The permeability to sucrose was reversibly reduced by acidic pH. In addition, the pH effect on the permeability to sucrose fit well with by the Hill's equation (where, n=2.7 and pK=6.7).

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An Analysis on the Less Favored Condition of Fishing Village in Korean Island Regions using Census of Agriculture, Forestry and Fisheries (도서지역 어촌의 조건불리성 분석: 농림어업총조사 자료를 이용하여)

  • Kim, Bong-Tae
    • The Journal of Fisheries Business Administration
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    • v.48 no.4
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    • pp.11-25
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    • 2017
  • The purpose of the study is to analyze the status and trend of less favored condition of fishing village in Korean island regions using the census of agriculture, forestry and fisheries. The less favored condition was measured as the difference in accessibility to major services and in fishery sales and resident infrastructure, applying the difference-in-difference method and propensity score matching method respectively. The result shows that access to major services has improved in island area between 2010 and 2015, implying that related policies such as the island comprehensive development project have been successful to some extent. However, some educational facilities, cultural facilities, and health facilities still have low inaccessibility and fishery sales are also significantly lower than in general area. This suggests that it is necessary to maintain related policies like the direct payment of fisheries.

Impedance Tomography using Internal Current Density Distribution Measured by Nuclear Magnetic Resonance (자기공명촬영상에서 구한 내부 전류밀도를 이용한 임피던스 단층촬영법)

  • Lee, Su-Yeol;U, Eung-Je;Mun, Chi-Ung
    • Journal of Biomedical Engineering Research
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    • v.15 no.4
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    • pp.413-418
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    • 1994
  • In electrical impedance tomography (EIT), we use boundary current and voltage measurements to provide the information about the cross-sectional distribution of electrical impedance or resistivity One of the major problems in EIT has been the inaccessibility of internal voltage or current data in finding the internal impedance values. We propose a new image reconstruction method using internal current density data measured by NMR. We obtained a two-dimensional current density distribution within a phantom by processing the real and imaginary MR images from a 4.7T NMR machine. We implemented a resistivity image reconstruction algorithm using the finite element method and sensitivity matrix. We presented computer simulation results of the image reconstruction algorithm and furture direction of the research.

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Longterm Benefit and Unmet Needs in Enzyme Replacement Therapy of Gaucher (고셔병 환자에서 효소대체치료의 장기적 효과와 한계)

  • Kim, Yoo-Mi
    • Journal of The Korean Society of Inherited Metabolic disease
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    • v.14 no.1
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    • pp.42-47
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    • 2014
  • Gaucher disease is a multisystemic disorder arising from a deficient activity of the lysosomal enzyme glucocerebrosidase, which leads to accumulation of glycosylceraide and other glycolipids in the regiculoendothelial system. The characteristics of Gaucher disease are anemia, thrombocytopenia, hepatosplenomegaly, and skeletal disease. Enzyme replacement therapy (ERT) has been proven to prevent progressive manifestations of Gaucher disease and effective in improving anemia, thrombocytopenia, bone markers and biomarkers. However, some patient needs still remain unmet because of the inaccessibility of certain sites including brain, bone and various organs. ERT could not Improve the irreversible lesion such as liver fibrosis, hepatopulmonary syndrome, and necrosis or infarction of bone and other organs. Adult patients with Gaucher disease should be screened for longterm complication such as bone disease, pulmonary hypertension, gallstone, and cancer, especially in patients with splenectomy. Parkinsonism and polyneuropathy was also reported among patients with type 1 Gaucher disease, but ERT does not improve neurological function. We need to review the benefits and unmet needs of ERT in Gaucher disease.

Analysis of the Characteristics about Diversion of Surplus Classroom in Elementary Schools in Rural Area - Concentrated on the Modernized Elementary Model School in Chonnam Area - (농어촌지역 초등학교 유휴교실의 전용특성 분석 - 전남지역 농어촌 현대화 시범학교를 중심으로 -)

  • Jeong, Joo-Seong
    • Journal of the Korean Institute of Educational Facilities
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    • v.15 no.6
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    • pp.30-38
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    • 2008
  • The aim of this study is to investigate present situation about occurrence of surplus classrooms by the merger and abolition of rural elementary schools, and to deduce basic architectural data for efficient utilization. It was examined based on the analysis of using pattern and interview of teachers of modernized elementary model schools. The occurrence ratio of surplus classrooms was about 30 to 60 percentages among seven investigated schools, the ratio was gradually increasing. Most of them were nearly leaving without certain practical use because of inaccessibility and low degree of diversion. The characteristic about diversion of surplus classroom was shown to change from special or learning room to living-related room and management-related room in order, finally, it was used a room for child care with a lapse of time. Long-tenn and continuous data accumulation for diversion and utilization of surplus classroom should be required.