• Title/Summary/Keyword: Incompatibility

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Safety and outcomes of subconjunctival allogenic mesenchymal stem cell transplantation in canine experimental corneal defects

  • Kim, Ju-Won;Lee, So-Young;Park, Hee-Myung
    • Korean Journal of Veterinary Research
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    • v.52 no.3
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    • pp.157-162
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    • 2012
  • Corneal injury is very common clinical condition in veterinary medicine and delayed or incomplete corneal healing has the potential of vision loss due to the loss of corneal transparency. For the reconstruction of corneal epithelium, tissue graft and cell transplantation have been prosperously investigated. The purpose of this study was to evaluate the clinical value and short-term safety of application of cultured allogenic mesenchymal stem cells (MSCs) in the treatment of canine experimental corneal defect. Corneal defects were surgically generated in the central corneas of healthy beagle dogs and cultured canine allogenic MSCs were transplanted via subconjunctival injection. Although mean healing time, the rate of epithelial regeneration, and the degree of corneal transparency were not significantly improved after MSC transplantation, significant immune reaction or incompatibility reaction was not detected except transient local irritation. These results propose the possibility of MSC application as a new regenerative medicine in canine ocular disorders.

SD-ICN: Toward Wide Area Deployable Software Defined Information Centric Networking

  • Xing, Changyou;Ding, Ke;Hu, Chao;Chen, Ming;Xu, Bo
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.5
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    • pp.2267-2285
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    • 2016
  • Information Centric Networking that uses content name instead of IP address as routing identifier can handle challenges such as traffic explosion and user mobility, but it also suffers from scalability and incompatibility problems. In this paper by combining the concept of software defined networking and Internet end to end arguments, we propose a wide area deployable software defined information centric networking service model named SD-ICN. SD-ICN employs a dual space structure that separates edge service network and core transmission network. The enhanced SDN techniques are used in edge service network in order to implement intelligent data routing and caching, while traditional IP technique is reserved in core transmission network so as to provide wide area high speed data transmission. Besides, a distributed name resolution system based on the cooperation of different controllers is also presented. The prototype experiments in our campus network show that SD-ICN can be deployed in a scalable and incremental way with no modification of the core network, and can support typical communication modes such as multicast, mobility, multihoming, load balancing, and multipath data transmission effectively.

Genesis of a Vertical City in Hong Kong

  • Lau, Stephen S.Y.;Zhang, Qianning
    • International Journal of High-Rise Buildings
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    • v.4 no.2
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    • pp.117-125
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    • 2015
  • A vertical city with multifunctional land use turns out to be the most viable solution for an urban condition characterized by increasing density due to population expansion, topographical limitation of buildable land, economic development and the pursuit for collective sustainable living, such as in Hong Kong. This paper presents initial research results from a study on the chronological and typological evolution of tall buildings in the city, from the climate-responsive verandah typology to the mixed-use hyper-commercial podium and residential tower typologies that predominate today, to the ultimate formation of a vertical city. Case studies and surveys have focused on the development of this building typology throughout the decades since the 1920s, substantiating a discussion on the subjective and objective factors contributing to a genesis of the vertical city phenomenon in Hong Kong. The discussion will engage, under the notion of the vertical city, on how residents and visitors adapt to the growing density of the city, and how they accustom themselves to the changing urban morphology over time. Advantages such as high efficiency, spaces savings, time convenience, etc.; and disadvantages such as deficiency in livability, incompatibility of uses, environmental health deficiencies, etc.; serve as a reference for other cities in need of high-density planning due to population and economic growth.

Can anomalous monism be interpreted as a counter theory against the consequence argument? (무법칙적 일원론은 결과논변에 대응할 수 있는가?)

  • Hong, Jiho
    • Korean Journal of Logic
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    • v.18 no.3
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    • pp.359-387
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    • 2015
  • As is well known, the consequence argument(shortly, CA) is intended as showing the incompatibility of free will and determinism. Recently, professor Choi Hoon tries to show there is a way in which Davidson's anomalous monism(shortly, AM) can be interpreted to counter CA. But I do not agree with his interpretation. So, in this paper, I will try to show why in the following way. In order to counter CA, it must be possible for AM to deny at least one of the premises of CA or to deny ${\beta}$ rule which guarantees the validity of CA or to show that free will is compatible with determinism in spite of the soundness of CA. In this paper, I will show that AM can do neither.

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Cyclic load experiment study on the laminated composite RC walls with different concrete ages

  • Zhang, Hongmei;Lua, Xilin;Li, Jianbao;Liang, Lin
    • Structural Engineering and Mechanics
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    • v.36 no.6
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    • pp.745-758
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    • 2010
  • 12 typical laminated composite reinforced concrete (RC) walls with different concrete ages and 3 cast-in-place RC walls subjected to low frequency cyclic load were carried out in this study. The failure mode, force-deformation response and energy dissipation capacity of these specimens were investigated. Differences of structural behaviours between composite RC walls and common cast-in-place RC walls were emphasized in the analysis. The compatibility of the composite specimens with different concrete ages was discussed based on the experiment. Test results indicated that the differences between the lateral bearing capacity and the displacement ductility of the composite walls and the common walls were not so obvious. Some of the composite specimen even has higher bearing capacity under the experiment loading situation. Besides, the two parts of the laminated composite specimens demonstrates incompatibility at the later loading sequence on failure mode and strain response when it is in tension. Finally, this laminated composite shear walls are suggested to be applied in rapid reconstruction structures which is not very high.

Influence of Nano-Cellulose Dispersant on the Vulcanization Characteristics, Viscoelastic Properties, and Mechanical Properties of Silica-SBR Compounds

  • Kim, Jung Soo;Kim, Dong Hyun
    • Elastomers and Composites
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    • v.55 no.3
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    • pp.215-221
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    • 2020
  • Silica/SBR (styrene-butadiene rubber) compounds are the primary constituents of tire treads. Furthermore, the excellent dynamic viscoelastic properties of silica lead to good fuel efficiencies. However, the silanol group on the surface of silica does not mix well with non-polar rubber because of its polarity. This incompatibility causes aggregation due to the occurrence of hydrogen bonding between the hydroxyl groups, thereby reducing the dispersibility of silica. Recently, the wet master batch (WMB) process has been applied to overcome these disadvantages, and research on silica dispersants that can be used in the WMB process has been increasing. In this study, we prepared silica/SBR compounds by using three types of eco-friendly cellulose-based dispersants in the WMB process, namely: cellulose-, sodium carboxymethyl cellulose, and nanocellulose-based dispersants. Subsequently, we compared the vulcanization characteristics, viscoelastic properties, and mechanical properties of the compounds. The silica dispersibility in the rubber compounds was improved with the addition of the nano-cellulose dispersant, resulting in the enhancement of the workability, hardness, tensile strength, and wear resistance of the SBR compound.

Dynamic Rheological Studies on Mixtures of Hot Pepper-Soybean Paste and Xanthan Gum

  • Choi, Su-Jin;Yoo, Byoung-Seung
    • Food Science and Biotechnology
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    • v.16 no.1
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    • pp.146-149
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    • 2007
  • Dynamic rheological properties of hot pepper-soybean paste (HPSP) mixed with xanthan gum were evaluated at different gum concentrations (0.3, 0.6, and 0.9%) and fermentation times (12 and 24 week). Magnitudes of storage (G') and loss moduli (G") in the HPSP-xanthan gum mixture systems increased with an increase in frequency ($\omega$), while complex viscosity (${\eta}^*$) decreased. G' values were higher than the G" values over most of the frequency range (0.63-63 rad/sec), and were frequency-dependent. The dynamic moduli (G', G", and ${\eta}^*$) of the HPSP-xathan mixtures were lower than those of the control (0% gum). The differences between the dynamic moduli values at 12-week and 24-week fermentation decreased with increasing gum concentration, showing that xanthan gum can be used to stabilize and improve the viscoelastic rheological properties of HPSP. The G' value of the HPSP-xathan mixtures increased with an increase in gum concentration from 0.3 to 0.9%, whereas the G" decreased. The ability of xanthan gum to increase the elastic properties in the HPSP-xanthan mixture systems seemed to be the result of the incompatibility phenomena existing between xanthan gum and glutinous rice starch.

Analysis of Relationship between Teamwork Attitude and the Job Satisfaction of Project Participants

  • Acharya Nirmal Kumar;Kim Hyung-Soo;Lee Young-Dai
    • Korean Journal of Construction Engineering and Management
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    • v.7 no.4 s.32
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    • pp.164-176
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    • 2006
  • Conflict may occur during teamwork activities. Conflict is the incompatibility of interest of participants; hence, it is more common in a wide varied activities involved construction field. Goals and values involve positive or negative features and are therefore common sources of conflict in construction field. Excessive conflict is a major hindrance to the effective operation of a team. If the conflict is not managed timely and properly, it could be transformed into a big dispute, thus to avoid these situation, it is necessary to augment working together culture. This paper aims to identify project team working factors and to uncover underlying relationships between these factors. A questionnaire survey was used to collect data from professionals. Factor analysis was employed to categorize twenty-one teamwork items evaluated by 169 respondents working in three major construction parties namely, owners, consultants and contractors. Factor analysis uncover that these team work factors can be grouped under three categories titled as: integrative working culture, relationship building and trust building. Multiple regression analysis however, showed that relationship building factor does not influence job satisfaction of project participants. Results of this study can be used as a tool to strengthening relationship between project participants in the construction industry.

Genetics of Self-fertility and Selection of Self-Fertile Lines in Rye (Secale cereale L.)

  • Heo, Hwa-Young;Hong, Byung-Hee;Seong, Rak-Chun;Ha, Yong-Woong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.45 no.5
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    • pp.343-346
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    • 2000
  • Rye breeding using F$_1$ hybrid began about 30 years ago, when cytoplasmically inherited forms of male sterility (CMS) and corresponding nuclear restorers were detected. It is very important to produce inbred lines for making hybrid lines because of strong self-incompatibility in rye. Among the 456 rye germplasms used in hybrid breeding scheme, 24 lines (5.3%) had the above 60% of self-fertility, and six lines of them were selected for their good agronomic characteristics and were used for subsequent inbreeding program. The average self-fertility of selected six lines was 78.4%, ranging from 72.2 to 99.5%. Genetic analysis for the self-fertility using $F_2$ populations showed that the segregation of self-fertile and sterile plants in F$_2$populations could be fit into 3 to 1 ratio suggesting self-fertility in rye be controlled by one major gene. The four different self-fertile lines, PI237923, 5C11, 5G5 and Florida black, had the same self-fertility gene because their F$_2$ plants showed almost the same self-fertility as their parents and showed no genetic segregation.

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Confirmation of Parentage of the Pear Cultivar 'Niitaka' (Pyrus pyrifolia) Based on Self-incompatibility Haplotypes and Genotyping with SSR Markers

  • Kim, Hoy-Taek;Nou, Ill-Sup
    • Horticultural Science & Technology
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    • v.34 no.3
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    • pp.453-460
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    • 2016
  • The parentage of the horticulturally important pear cultivar 'Niitaka' was confirmed by determining its S-genotypes based on the S-RNase and $PpSFBB^{-{\gamma}}$ genes, and genotyping using simple sequence repeat (SSR) markers. Previous reports suggested that the cultivars 'Amanogawa' and 'Imamuraaki' were the parents of 'Niitaka', although the cultivars 'Chojuro' and 'Shinchu' were also examined as candidate parents, along with two other cultivars. In the present study, the S-genotype of 'Niitaka' was determined to be $S^3S^9$. The $S^9$-RNase of 'Niitaka' was found to be likely inherited from the parent 'Amanogawa' ($S^1S^9$) and the $S^3$-RNase from 'Chojuro' ($S^3S^5$) or 'Shinchu' ($S^3S^5$). Based on the S-genotypes, the cultivar 'Imamuraaki' ($S^1S^6$) had no contribution to the parentage of 'Niitaka' ($S^3S^9$). A total of 67 polymorphic SSR markers were used to further confirm the parentage of 'Niitaka'. Discrepancies were found at several SSR loci between 'Niitaka' and the cultivars 'Imamuraaki' and 'Shinchu', whereas 'Niitaka' inherited alleles from 'Amanogawa' and 'Chojuro' at all SSR loci. Therefore, our findings established that 'Amanogawa' and 'Chojuro' are the parents of pear cultivar 'Niitaka', and not 'Imamuraaki' as previously reported.