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Kitamura, C.,Yasuda, Y.,Kobayashi, T.,Nomura, T.,Shimada, K. Asian Australasian Association of Animal Productio 1999 Animal Bioscience Vol.12 No.6
To evaluate direct and maternal effects on calf market weight (CMW) and carcass weight (CW) in Japanese Black cattle under an animal model, genetic parameters were estimated using 51,320 records of CMW and 11,944 records of CW, respectively. Direct and maternal heritabilities, and direct-maternal genetic correlation were estimated to be 0.22, 0.06 and 0.27 for CMW, and 0.23, 0.12 and -0.40 for CW, respectively. Correlation coefficient between maternal breeding values for CMW and CW was 0.521 for 157 sires appeared in both CMW and CW data sets. These results suggest that the maternal genetic effect on pre-weaning growth carries over to carcass weight. Maternal breeding values for both calf market weight and carcass weight could be used as the indicator traits of maternal ability in Japanese Black cattle.
Temperature - Dependent Micro Crack Healing Process
Kitamura, Kaxuhiro,Maksimov, Igor L .,Nishioka, Kazumi 대한금속재료학회(대한금속학회) 1998 METALS AND MATERIALS International Vol.4 No.6
The crack healing process is studied theoretically on the basis of the extended the Thomson-Obreimoff model. The system free-energy F as a function of the crack length l and temperature T is calculated using the self-consistent Einstein model. It is found that with the temperature increase, the energy barrier becomes lower and even disappears at the $quot;healing$quot; temperature T=T_h. It is demonstrated that the crack-lattice trapping in the Obreimoff model is controlled by the free-energy barrier height OF(T). The latter exhibits the universal power-law behavior. On the basis of the results obtained, the crack healing time is evaluated.
Differentiation of Lymphocystis Disease Virus Genotype by Multiplex PCR
Kitamura Shin Ichi,Jung Sung-Ju,Oh Myung-Joo The Microbiological Society of Korea 2006 The journal of microbiology Vol.44 No.2
Lymphocystis disease virus (LCDV) is the causative agent of lymphocystis disease. The viruses have been divided into three genotypes (genotype I for LCDV-1, II for Japanese flounder isolates, and III for rockfish isolates) on the basis of major capsid protein (MCP) gene sequences. In this study, we developed a multiplex PCR primer set in order to distinguish these genotypes. We also analyzed the MCP gene of a new LCDV isolate from the sea bass (SB98Yosu). Comparison of sequence identities between SB98Yosu and eight Japanese flounder isolates, revealed identity of more than 90.1 % at nucleotide level and 96.5% at deduced amino acid level, respectively. Phylogenetic analyses based on the MCP gene showed that SB98Yosu belongs to genotype II, along with Japanese flounder isolates. Multiplex PCR based on the MCP gene allowed us to identify these genotypes in a simple and rapid manner, even in a sample that contained two genotypes, in this case genotypes II and III.
( Hiroki Kitamura ),( Takayuki Shimaoka ),( Fumitake Takahashi ) 한국폐기물자원순환학회(구 한국폐기물학회) 2015 한국폐기물자원순환학회 3RINCs초록집 Vol.2015 No.-
Immobilization effect of chelate treatment was investigated using leaching experiments. Chemical forms of immobilized heavy metals in chelate treated municipal solid waste incineration (MSWI) fly ash were also investigated. Leaching experiments showed that heavy metals in chelate-treated MSWI fly ash are immobilized except for Cu. Some of Cu was incorporated into crystal structure of ettringite generated by chelate treatment. However, immobilization effect by ettringite might be limited. Chemical forms of heavy metals in chelate-treated MSWI fly ash seems to be oxides, sulfate or chlorides. Heavy metal particle sizes are several ten μm scale and concentrated spots of heavy metals were not mostly observed. Therefore, heavy metals seem to be distributed widely and tenuously on fly ash particle.
The Significance of Rural Land Use Planning for the Conservation of Nature and Culture
Teitaro Kitamura 서울대학교 환경대학원 2000 環境論叢 Vol.38 No.-
It is not easy to conserve nature and culture in rural regions, because rural areas are so huge, covering over 90% of the earth's land surface. This paper first describes the author's views about how to cope with the conservation of nature and culture in such huge rural areas. The significant point is to consider hierarchical methods of conservation, ranging from macroscopic to microscopic. Conservation is ultimately impossible if rural areas are not taken into consideration as a whole. It is important to bring order to the whole when working with rural regions. The paper gives the principles of regional order. The idea of a rural settlement sphere is proposed for the structure of rural regions. A rural settlement sphere is a sphere within a 20~30km radius centering on a local city, and this is a unit of living sphere. The construction of rural settlement spheres becomes a basis for sustainable development for rural regions. Rural regions cannot conserve nature and culture until a regional structure is constructed. Last, the methodological base of land use planning which becomes a basis for making rural settlement sphere is described. It includes major land use planning, middle land use planning, and minor land use planning. The hierarchical construction of land use planning is important. The base of conservation of nature and culture cannot be laid until land use planning is definitely measured. Proceeding steadily with land use planning is an important way of conserving the global environment.