• Title/Summary/Keyword: Incompatibility

Search Result 299, Processing Time 0.025 seconds

S-haplotypes and Genetic Diversity in 'Danji' Radish (Raphanus sativus L. var. hortensis)

  • Ahn, Yulkyun;Kim, Hyukjun;Han, Dongyeop;Park, Younghoon
    • Horticultural Science & Technology
    • /
    • v.32 no.2
    • /
    • pp.210-216
    • /
    • 2014
  • The distribution of S-haplotypes and genetic relationships were evaluated for 47 accessions of 'Danji' radish (Raphanus sativus L. var. hortensis Baker f. gigantissimus Makino) originating from Jeju Island in South Korea. A total of 22 S-haplotype-specific SCAR markers for the S locus glycoprotein (SLG) and S receptor kinase (SRK) loci were tested, and six primer sets amplified locus-specific PCR fragments from at least one 'Danji' radish accession. S5 and S21 alleles atthe SLG locus were the most frequently distributed, and detected from 87.5% and 64.6% of the accessions, respectively. The frequency of the class-II haplotype at the SLG locus was 75%, more frequent than the class-I haplotype. The S23 allele at the SRK locus was detected from 7 accessions. Grouping of the accessions based on S-allele composition revealed three major groups, while 8 accessions showed a unique allelic composition. The genetic diversity of 47 'Danji' radishes and 1 'Gwandong' radish were also evaluated with 38 RAPD primers. A total of 312 bands were scored, and showed that 138 bands (44.2%) were monomorphic among the accessions, whereas 174 (55.8%) bands were polymorphic. Polymorphism rates ranged from 0.2 to 1.0, indicating significant variations in detecting polymorphism across RAPD primers. The genetic similarity coefficients among all pairs of the 48accessions varied from 0.62 to 0.93, and 42% of the comparisons exhibited values higher than 0.85. All the cultivars could be distinguished based on the DNA fingerprints revealed by RAPD. The comparisons between the dendrograms based on S-haplotypes and RAPDs indicate an unrelated and sporadic distribution for several accessions; however, there was a tendency for accessions with the same S-allelic composition to group into the same cluster.

Enhanced solid element for modelling of reinforced concrete structures with bond-slip

  • Dominguez, Norberto;Fernandez, Marco Aurelio;Ibrahimbegovic, Adnan
    • Computers and Concrete
    • /
    • v.7 no.4
    • /
    • pp.347-364
    • /
    • 2010
  • Since its invention in the $19^{th}$ century, Reinforced Concrete (RC) has been widely used in the construction of a lot of different structures, as buildings, bridges, nuclear central plants, or even ships. The details of the mechanical response for this kind of structures depends directly upon the material behavior of each component: concrete and steel, as well as their interaction through the bond-slip, which makes a rigorous engineering analysis of RC structures quite complicated. Consequently, the practical calculation of RC structures is done by adopting a lot of simplifications and hypotheses validated in the elastic range. Nevertheless, as soon as any RC structural element is working in the inelastic range, it is possible to obtain the numerical prediction of its realistic behavior only through the use of non linear analysis. The aim of this work is to develop a new kind of Finite Element: the "Enhanced Solid Element (ESE)" which takes into account the complex composition of reinforced concrete, being able to handle each dissipative material behavior and their different deformations, and on the other hand, conserving a simplified shape for engineering applications. Based on the recent XFEM developments, we introduce the concept of nodal enrichment to represent kinematics of steel rebars as well as bonding. This enrichment allows to reproduce the strain incompatibility between concrete and steel that occurs because of the bond degradation and slip. This formulation was tested with a couple of simple examples and compared to the results obtained from other standard formulations.

Compatibilization of Linear PPS/PET Blends with SEBS Copolymers (SEBS 공중합체를 이용한 선형 PPS/PET 블렌드의 상용화)

  • Kim, Sungki;Hong, In-Kwon;Lee, Sangmook
    • Polymer(Korea)
    • /
    • v.37 no.3
    • /
    • pp.405-410
    • /
    • 2013
  • The effect of styrene-ethylene/butylene-styrene (SEBS) on the blend of polyphenylene sulfide (PPS) and polyethylene terephthalate (PET) was investigated. The blends were extruded by a single screw extruder equipped with a Maddock mixing screw, and their molded properties were examined. After the binary blends were prepared on the whole compositions of PPS/PET (80/20, 60/40, 40/60, 20/80), the thermal, rheological, mechanical properties and morphology of the blends were analyzed. The results showed the significant decline in the properties of the blends owing to the incompatibility between PPS and PET phases. As a basic blend composition, the PPS/PET (40/60) blend was selected by considering cost efficiency. To this basic blend, SEBS was added as a compatibilizer. With increasing SEBS addition, the mechanical properties were improved. From the domain size reduction observed in morphology, it might be due to the enhancement of compatibility between linear PPS and PET phases by addition of SEBS.

Beam Transition Elements for Finite Element Analysis of Transition Regions of Coupled Wall Structures (병렬전단벽 구조물의 변화부분의 유한요소해석을 위한 보-변환요소의 개발)

  • 김호수
    • Computational Structural Engineering
    • /
    • v.8 no.2
    • /
    • pp.85-93
    • /
    • 1995
  • This study presents the formulation of beam transition elements and transition zone elements for the effective finite element analysis of the transition regions of coupled wall structures. Beam transition element can be described as the quasi beam element which is replaced by an equivalent plane stress element, keeping equally, the basic behavior of beam element, based on the kinematic and force constraints between beam and wall element. These beam transition elements solve the incompatibility related to different degrees of freedom between beam and wall element in transition regions. Also, the stiffness matrices of transition zone elements which are directly connected with beam transition elements in transition regions can be derived from the equivalent constraint conditions. These elements provide the reasonable mesh grading schemes for transition regions and can be usefully applied to the transition regions of all structures that the interactions of wall and beam element are considered.

  • PDF

Intelligence Type Electronic Medical Examination Chart and Data Treatment of Cyber Doctor to Interconnect ASP and SQL (ASP와 SQL을 연동한 사이버닥터의 지능형 전자진료차트와 데이터처리)

  • Kim Seok-Soo
    • Journal of Digital Contents Society
    • /
    • v.4 no.1
    • /
    • pp.57-66
    • /
    • 2003
  • This paper presents the content regarding electronic medical examination chart and data treatment for efficient medical examination and prompt treatment by realizing mutual conversation type remote medical examination system among 3 parties(patient, doctor, pharmacist) on internet base. This is an intelligence type remote medical examination system for both on-line and off-line mode to transcend time and space on the web being participated by anybody, which is cheap type to solve problems in existing remote medical examination system such as high price based on hardware, incompatibility, and so on. By interconnecting ASP and SQL on IIS 4.0 web server, database enables system integration for efficient data processing, on-line consultation between patient and doctor, medical examination on off-line, transmission of medical prescription to pharmacist designated by patient and preparation of medicine, semi-eternal storage of medical examination data owing to storage and search of medical examination data, exact medical examination and prescription using this medical examination data by patient and doctor, and so on.

  • PDF

A Case Study on the Operation and Management Simulation of Pension Insurance House in Later Life : In the Case of Muju Rural Village (노후연금보험주택의 운영과 관리 시뮬레이션 사례연구 : 무주군의 전원마을 모델을 중심으로)

  • Hong, Hyung-Ock;Kim, Jung-In
    • Journal of Families and Better Life
    • /
    • v.27 no.1
    • /
    • pp.61-71
    • /
    • 2009
  • The purpose of this study was to resolve the issues of inferior housing environment and the population decrease in rural community by improving the environment and attracting urban inhabitants. A simulation on the costs and the local programs was operated from a point of view that Pension Insurance House with Long-term Lease and a plan for the program in connection with local resources should be accompanied to attract urban inhabitants. The study was carried out through mainly documents analysis and specialists' opinions. The simulation results are as follows. Firstly, the pre-existing rural housing development projects have only emphasized the hardware, while underestimated the post-management with operating programs. The software should be underlined when Pension Insurance House is developed. Secondly, as a result of the simulation on construction expenditure and the operating and maintenance cost for 30 years, about 82.3 million Wons are necessary residential expenses for 15 years per unit. Thirdly, in case of MUJU County, it has made the most of its pre-existing institutions. It's medical institutions provide medical care system with health education, facilities related leisure and culture offer recreational programs and the local community center and its program of each town helps new habitants adopt to the rural life. Additionally, the employment project of a local welfare center allow people living in a rural community to continue their careers with their talents and interests through local class programs for a life worth living. Lastly, guide for getting information of rural life, local community gathering and preliminary education should be carried out to reduce expectant tenants' incompatibility and assist them settle down early. The community program expansion is also required at the local government level.

Enhanced Seed Development in the Progeny from the Interspecific Backcross (Fagopyrum esculentum ${\times}$ F. homotropicum) ${\times}$ F. esculentum

  • Shin, Dong-Hoon;Kamal, A H M;Yun, Young-Ho;Bae, Jeong-Sook;Lee, Yun-Sang;Lee, Moon-Soon;Chung, Keun-Yook;Woo, Sun-Hee
    • Korean Journal of Plant Resources
    • /
    • v.22 no.3
    • /
    • pp.209-214
    • /
    • 2009
  • To facilitate the introgression of F. esculentum into the traits of F. homotropicum, several accessions of the hybrids between these two species were pollinated with F. esculentum as the recurrent parent. The embryo in vitro rescue was performed to increase the recovery of backcross progenies. The $F_{2}$ generation was more amenable than $F_{1}$ hybrids to produce backcross progenies. The $F_{1}$ hybrids were backcrossed twice with common buckwheat (pin-type F. esculentum) (recurrent backcrossing). Also, alternate backcrosses with common buckwheat and F. homotropicum (congruity backcrossing) were carried out. Pollen tube growth of BC$F_{1}$ ${\times}$ F. esculentum (thrum) and F. homotropicum ${\times}$ BC$F_{1}$ was the disturbed penetration exceeded for all initial interspecific hybrids, and its requirement was proportionally lower when the common buckwheat was used as the recurrent parent and as the last parent of congruity hybrids. Effects of both common buckwheat and F. homotropicum on seed success rate for hybridization were observed. Growth of hybrid embryos before rescue, regeneration of mature hybrids all increased recurrent and congruity backcrosses and inter-crosses between $F_{1}$ plants and selected fertile plants of the second congruity backcrosses.

Development of New Probabilistic Seismic Hazard Analysis and Seismic Coefficients of Korea Part II: Derivation of Probabilistic Site Coefficients (신(新) 확률론적 지진분석 및 지진계수 개발 Part II: 확률론적 지진계수 도출)

  • Kwak, Dong-Yeop;Jeong, Chang-Gyun;Lee, Hyunwoo;Park, Duhee
    • Journal of the Korean GEO-environmental Society
    • /
    • v.10 no.7
    • /
    • pp.111-115
    • /
    • 2009
  • In Korea, the probabilistically developed seismic hazard maps are used with deterministically derived seismic site coefficients in developing the design response spectrum of a specific site. Even though the seismic hazard maps and seismic site coefficients are incompatible, the current design code ignores such incompatibility. If the seismic hazard map and seismic coefficients are both developed in identical probabilistic framework, such problems can be solved. Unfortunately, the available method cannot be use to derive "true" probabilistic site coefficients. This study uses the ground motion time histories, which were developed as the result of a new probabilistic seismic hazard analysis in the companion paper, as input motions in performing one-dimensional equivalent linear site response analyses, from which the uniform hazard response spectra are generated. Another important characteristic of the hazard response spectra are that the uncertainties and randomness of the ground properties are accounted for. The uniform hazard spectra are then used to derive probabilistic site coefficients. Comparison of probabilistic and deterministically site coefficients demonstrate that there is a distinct discrepancy between two coefficients.

  • PDF

A Case of Hemolytic Disease of a Newborn by an Anti-$Di^a$ Antibody Treated with Intravenous Immunoglobulin (정맥용 면역글로불린 투여로 호전된 항-$Di^a$ 항체에 의한 신생아 용혈성 질환 1예)

  • Lee, Chang Eon;Park, Su Jin;Kim, Won Duck
    • Journal of Yeungnam Medical Science
    • /
    • v.30 no.1
    • /
    • pp.21-24
    • /
    • 2013
  • Hemolytic disease in a newborn that causes early jaundice is common. It is often due to the Rh (D) and ABO incompatibility, but rarely due to unexpected antibodies. Among these unexpected antibodies, the anti-$Di^a$Dia antibody rarely occurs. The anti-$Di^a$ antibody was observed in the serum and red-cell eluate of an infant, and in the serum of his mother. The frequency of the appearance of the $Di^a$ antigen in the Korean population is estimated to be 6.4-14.5%. This paper reports a case of hemolytic disease in a newborn associated with the anti-$Di^a$ antibody. A full-term male infant was transferred to the authors' hospital due to hyperbilirubinemia the day after his birth. The laboratory data indicated a hemoglobin value of 11.6 g/dL, a reticulocyte count of 10.6%, a total bilirubin count of 14.4 mg/dL, a direct bilirubin count of 0.6 mg/dL, and a positive result in the direct Coombs' test. Due to the identification of an irregular antibody from the maternal serum, an anti-$Di^a$ antibody was detected, which was also found in the eluate made from the infant's blood. The infant had been treated with phototherapy and intravenous immunoglobulin since the second day after his birth and was discharged due to an improved condition without exchange transfusion. Therefore, in cases of iso-immune hemolytic disease in a newborn within 24 hours from birth who had a negative result in an antibody screening test, the conduct of an anti-$Di^a$ antibody identification test is recommended due to the suspicion of an anti-$Di^a$ antigen, followed by early administration of intravenous immunoglobulin.

Vegetative Incompatibility and Hypovirulence Conversion of Cryphonectria(Endothia) parasitica(Murr.)Barr (Cryphonectria(Endothia) parasitica(Murr.)Barr의 체세포(體細胞) 불화합성(不和合性)과 저병원성(低病原性) 변환(變換))

  • Lee, Jong-Kyu
    • The Korean Journal of Mycology
    • /
    • v.22 no.4
    • /
    • pp.343-349
    • /
    • 1994
  • One hundred and two virulent(V) strains of Cryphonectria parasitica were isolated from the cankers of American chestnut (Castanea dentata) trees in western Massachusetts, USA. The diversity of vegetative compatibility groups (VCGs) of C. parasitica was investigated. One hundred and two strains represented 54 VCGs; 38 VCGs had only one strain each, 6 VCGs had 2 strains each, and 10 most common VCGs had 52 strains. Great diversity in VCGs may due to the increasing numbers of VCGs with time since the pathogen has been in Massachusetts for 80 years. Ten vegetative compatibility representative strains were selected from the 10 most common VCGs and converted to hypovirulent (H) strains through the pairing and hyphal anastomosis of H strains (4 strains with French dsRNA elements and 17 strains with Italian dsRNA elements). All of the 10 representative strains were converted to H strains by at least more than one of the H strains.

  • PDF