• Title/Summary/Keyword: Incompatibility

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Interaction fields based on incompatibility tensor in field theory of plasticity-Part I: Theory-

  • Hasebe, Tadashi
    • Interaction and multiscale mechanics
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    • v.2 no.1
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    • pp.1-14
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    • 2009
  • This paper proposes an interaction field concept based on the field theory of plasticity. Relative deformation between two arbitrary scales, e.g., macro and micro fields, is defined which can be implemented in the crystal plasticity-based constitutive framework. Differential geometrical quantities responsible for describing dislocations and defects in the interaction field are obtained, based on which dislocation density and incompatibility tensors are further derived. It is shown that the explicit interaction exists in the curvature or incompatibility tensor field, whereas no interaction in the torsion or dislocation density tensor field. General expressions of the interaction fields over multiple scales with more than three scale levels are derived and implemented into the present constitutive equation.

Calculation of residual stresses by inherent strain method (고유 변형도법에 의한 잔류응력의 계산)

  • 장창두;서승일
    • Journal of Welding and Joining
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    • v.7 no.1
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    • pp.36-41
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    • 1989
  • Among various calculation methods for residual stresses, inherent strain method can be useful one for its simplicity. In comparison with finite element method, it is more economical and efficient. First, inherent strain is assumed, and then incompatibility can be calculated from this inherent strain. Based on collocation method, incompatibility equation is solved assuming stress functions which satisfies boundary conditions. Assumed inherent strain can be determined through iterations on the condition that longitudinal residual stress in centerline is yield stress and transverse distortion is the same as predicted one from other method. Calculated results according to this analytic method yield good agreement with experimental ones.

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Thermodynamic Incompatibility of Food Macromolecules (식품 거대분자의 열역학적 비혼합성)

  • 황재관;최문정
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.5
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    • pp.1019-1025
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    • 1998
  • Proteins and polysaccharides are major food macromolecules. Generally, the mixture of these macromolecules can be separated into two phases because of their thermodynamic incompatibility. Phase separ-ation is explained by equilibrium phase diagram, which comprises binodal curve, critical point, phase separation threshold, tie-line and rectilinear diameter. Phase separation of protein-polysacc-haride solution is affected by pH, temperature, ionic strength, molecular weight, molecular structure, etc. Membraneless osmosis has been developed to concentrate protein solutions, using the phase diagram constituted by proteins and polysaccharides. Protein-polysaccharide mixtures are very promising fat mimetics because solution of mixtures forms water-continuous system with two phase-separated gels, which give plastic texture and a fatty mouthfeel.

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A Study of "Nineteen Medicaments of Mutual Antagonism" (십구외(十九畏)에 관한 고찰)

  • Park, Pil-Sang;Kang, Ok-Hwa;Lee, Go-Hoon;Park, Shin-Young;Kang, Suk-Hoon;Lee, Seung-Ho;Choi, Jang-Gi;Chae, Hee-Sung;Kwon, Dong-Yeul
    • Herbal Formula Science
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    • v.15 no.2
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    • pp.9-19
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    • 2007
  • Nineteen Medicaments of Mutual Antagonism currently belong to pharmaceutical incompatibility and some of them cannot be used in a same prescription: if they are used in a prescription, the treatment effect is rather reduced or toxic response may be produced. Therefore. inthisstudy, it was intended to look about how Nineteen Medicaments of Mutual Antagonism were defined through survey of literatures and to review the meaning and clinical potential. According to "Sinnongbonchogyeong," "Medicaments contain the substance that suppress toxins and the toxins may be removed with use of mutual restraint or mutual detoxication substances" and they have been used in terms of this concept. Since Tang and Song era, mutual restraint and mutual inhibition were confused and were difficult to be distinguished. In terms of pharmaceutical incompatibility, the original meaning of mutual restraint was deteriorated in "Sinnongbonchogyeong". That is. mutual restraint has been used as the concept of mutual inhibition or incompatibility. When various literatures were reviewed. it could be found that Nineteen Medicaments of Mutual Antagonism were firstly included in the phrases of songs and then in "seven emotion." It could be supposed that Nineteen Medicaments of Mutual Antagonism was created based on the clinical experiences of the author and the influence of doctors. Such supposition means indicates that the interactions among medicaments could effectively be applied and mutual restraint did not belong to pharmaceutical incompatibility. However. many doctors used mutual restraint and mutual inhibition in clinical practice with no distinguishment since Song era and. especially, it is supposed that. when medicaments were used with mixing. the pharmaceutical incompatibility of "Nineteen Medicaments of Mutual Antagonism" or "Eighteen Incompatible Medicaments" were emphasized and influenced on the efficacy of pharmaceutical preparations or acted as an obstacle in treating diseases. That is. an error was transferred: mutual restraint and mutual inhibition were not distinguished and were discretionally added or deleted through common people or professionals with no specific verification. The pharmaceutical preparations that belong to Nineteen Medicaments of Mutual Antagonism belong to pharmaceutical incompatibility but. when reviewed various literatures and clinical reports. they are not thought to be the ones that can never be used. Therefore. systematic literature review and experimental research should be performed.

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Insights into evolution and speciation in the red alga Bostrychia: 15 years of research

  • Zuccarello, Giuseppe C.;West, John A.
    • ALGAE
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    • v.26 no.1
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    • pp.21-32
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    • 2011
  • Studies of the red algal genus Bostrychia over the last 15 years have made it a model system for many evolutionary processes within red algal species. The combination of newly developed, or first employed methods, in red algal species studies has made Bostrychia a pioneer genus in intraspecific studies. Bostrychia was the first genus in which a mitochondrial marker was used for intraspecific red algal phylogeny, and the first for which a 3-genome phylogeny was undertaken. The genus was the first red alga used to genetically show maternal plastid and mitochondria inheritance, and also to show correlation between cryptic species (genetically divergent intraspecific lineages) and reproductive incompatibility. The chemotaxonomic use, and physiological function of osmolytes, has also been extensively studied in Bostrychia. Our continuous studies of Bostrychia also highlight important aspects in algal species studies. Our worldwide sampling, and resampling in certain areas, show that intensive sampling is needed to accurately assess the genetic diversity and therefore phylogeographic history of algal species, with increased sampling altering evolutionary hypotheses. Our studies have also shown that long-term morphological character stability (stasis) and character convergence can only be correctly assessed with wide geographic sampling of morphological species. While reproductive incompatibility of divergent lineages supports the biological species nature of these lineages, reproductive incompatibility is also seen between isolates with little genetic divergence. It seems that reproductive incompatibility may evolve quickly in red algae and the unique early stages of fertilization (e.g., gametes covered by walls, active movement of spermatium nuclei to the distant egg nucleus), also well investigated in Bostrychia,. may be key to our understanding of this process.

Design Patterns for Mitigating Incompatibility of Context Acquisition Schemes for IoT Devices (사물인터넷 컨텍스트 획득 비호환성 중재를 위한 디자인 패턴)

  • La, Hyun Jung;An, Ku Hwan;Kim, Soo Dong
    • KIPS Transactions on Software and Data Engineering
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    • v.5 no.8
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    • pp.351-360
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    • 2016
  • Sensors equipped in Internet-of-Thing (IoT) devices are used to measure the surrounding contexts, and IoT applications analyze the contexts to infer situations and provide situation-specific smart services. There are different context acquisition schemes including pulling, pushing, and broadcasting. Most IoT devices support only one of the schemes. Hence, there can be an incompatible issue on data acquisition schemes between applications and devices, and consequently it could result in an increased development cost and inefficiency on application maintenance. This paper presents design patterns which can effectively remedy the incompatibility problem. By applying the patterns, IoT applications with incompatibility can be systematically and effectively developed. And, also its maintainability is expected to increase.

Expression and regulation of self-incompatible genes in Brassica (배추과 작물의 자가불화합성 유전자의 발현 및 조절)

  • Park, Jong-In;Lee, In-Ho;Watanabe, Masao;Nou, Ill-Sup
    • Journal of Plant Biotechnology
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    • v.37 no.2
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    • pp.186-195
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    • 2010
  • In most self-incompatible plant species, recognition of self-pollen is controlled by a single locus, termed the S-locus. The self-incompatibility (SI) system in Brassica is controlled sporophytically by multiple alleles at a single locus, designated as S, and involves cell-cell communication between male and female. Two highly polymorphic S locus genes, SLG (S locus glycoprotein) and SRK (S receptor kinase), have been identified, both of which are expressed predominantly in the stigmatic papillar cell. Gain-of-function experiments have demonstrated that SRK solely determines S haplotype-specificity of the stigma, while SLG enhances the recognition reaction of SI. The sequence analysis of the S locus genomic region of B. campestris (syn. rapa) has led to the identification of an anther-specific gene, designated as SP11/SCR, which is the male S determinant. Molecular analysis has demonstrated that the dominance relationships between S alleles in the stigma were determined by SRK itself, but not by the relative expression level. In contrast, the expression of SP11/SCR from the recessive S allele was specifically suppressed in the S heterozygote, suggesting that the dominance relationships in pollen were determined by the expression level of SP11/SCR. Furthermore, recent studies on recessive allele-specific DNA methylation of Brassica self-incompatibility alleles demonstrate that DNA methylation patterns in plants can vary temporally and spatially in each generation. In this review, we firstly present overview of self incompatibility system in Brassica and then describe dominance relationships in Brassica self- incompatibility regulated by allele-specific DNA methylation.

Mating Relationship between the parent and the mutant strains in Pleurotus ostreatus

  • Lee, Byung-Joo;Lee, Mi-Ae;Kim, Yong-Gyun;Lee, Kwang-Won;Lim, Yong-Pyo;Lee, Byung-Eui;Song, Ho-Yeon
    • Journal of Mushroom
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    • v.10 no.3
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    • pp.101-108
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    • 2012
  • Pleurotus ostreatus 'Miso' is a mutant strain showing white color in pileus from the known parent strain 'Wonhyeong 1'. Shape and several other characters also vary with culture conditions. Mating experiments were performed to understand interstrain mating relationship using monokaryons of the parent and the mutant strains. All monokaryons were grown from single spores isolated from freshly collected fruit bodies. Pairings were performed in 90 mm petri dishes on PDA. They were allowed to grow at 25 until two fronts of the advancing mycelia met and developed a conspicuous contact zone. The contact zone and the outer edges of paired colonies on each plate were examined for clamp connections. The parent and the mutant resulted in tetrapolar incompatibility in intrastrain crosses. In interstrain crosses, each monokaryotic tester strain of the parent strain was out-crossed to monokaryotic tester strains of the mutant. As a result of these crosses it was found that both strains share the same A and B incompatibility factors yielding 25% compatibility.

Conjugal Transfer of NAH, TOL, and CAM::TOL* Plasmid into n-Alkane Assimilating Pseudomonas putida (방향족 탄화수소 분해 Plasmid의 n-Alkane 자화성 Pseudomonas putida에로의 전이)

  • Kho, Yung-Hee;Chun, Hyo-Kon;Cho, Kyong-Yun;Bae, Kyung-Sook
    • Microbiology and Biotechnology Letters
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    • v.17 no.1
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    • pp.51-55
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    • 1989
  • The conjugally transferred TOL plasmid or NAH plasmid was stably maintained and expressed in n-alkane assimilating Pseudomonas putida KCTC 2405. However, these plasmids were not able to coexist in this strain because of incompatibility. The incompatibility of TOL and NAH plasmid was bypassed using CAM::TOL* plasmid, which was constructed by the transposition of only tol gene without incompatibility system in TOL plasmid into CAM plasmid. p. putida 3SK capable of growing on m-toluate, naphthalene, camphor, and n-alkane(C8-C24) was constructed by the conjugal transfer of NAH plasmid into n-alkane assimilating p. putida SK carrying CAM:: TOL* plasmid. CAM::TOL* plasmid in p. putida 3SK was stable on the selective media but unstable on the nonselective media.

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