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전하준,今井勝 대구대학교 농업과학연구소 1992 農業科學硏究論文集 Vol.6 No.-
Three ecotypes of tomato (Ogata Zuiko, Moneymaker and Roma) were grown in different seasons. The dry matter accumulation and its partition and the leaf area expansion were compared. Parallel with the growth analysis, the yield was compared udner both the soil and solution culture. The differential growth occured between the cropping seasons and among the three cultivars. The partition of photoassimilate into fruit occurred sufficiently in Monymaker than in the other two cultivars. According this fact, Moneymaker seemed to be a heat tolerant cultivar. The behaviour of growth parameters differed with seasons and cultivars. RGR was affected by NAR rather than LAR because the seasonal changes of RGR were fitter with NAR than with LAR. Although the lower lower contribution of LAR to RGR, LAR seemed to be more influenced by LWR than SLA. There were no obvious differences among cultivars between the solution concentration in yield. Moneymaker showed the tendency to early flowering.
Search for the H Dibaryon in (K-, K+) Reactions
Bahk,S. Y.,Chung,K. S,Chung,S. H.,Funahashi,H.,Hahn,C. H.,Hara,T.,Hirata,S.,Hoshino,K.,Ieiri,M.,Iijima,T.,Imai,K.,Ishigami,T.,Itow,Y.,Kazuno,M.,Kikuchi,K.,Kim,C. O.,Kim,D. C.,Kim,J. Y.,Kobayashi,M.,Ko 國立昌原大學校 基礎科學硏究所 1992 基礎科學硏究所論文集 Vol.3 No.-
We have studied(??) reactions from an emulsion target. The S--2H dibaryon has been searched for by the analysis of the ??? momentum spectrum together with emulsion data. No evidence of H production was observed in the mass range of 1.90-2.16 GeV/c². Upper limits for the production cross section of the H are (0.2-0.6)% of that for the quasifree ??? production at the 90% confidence level.
h Ninomiya,T. Imai,T. Fujii,T. Suzuki,T. Fujita,T. Yamamoto,Y. Uesugi,Y. Kamada,Y. Takase,Y. Kudo,Y. Miura,Y. Ikeda,Y. M. Miura,A. Shimizu,A. Kimura,A. Morioka,A. Nishimura,A. Sagara,G. Kurita,H. Kubo 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
The NCT Program, in which the present JT-60U is being modified into a superconducting coil machine, is discussed under nationwide collaboration in Japan. Its mission is to establish high-beta steady-state operation for DEMO and to contribute to ITER. NCT is designed to have potential to investigate such research.
Kohri, H.,Shiu, S. H.,Chang, W. C.,Yanai, Y.,Ahn, D. S.,Ahn, J. K.,Chen, J. Y.,Daté,, S.,Ejiri, H.,Fujimura, H.,Fujiwara, M.,Fukui, S.,Gohn, W.,Hicks, K.,Hosaka, A.,Hotta, T.,Hwang, S. H.,Imai, American Physical Society 2018 Physical Review Letters Vol.120 No.20
<P>Differential cross sections and photon-beam asymmetries for the gamma(->)p -> Pi(-)Delta(++)(1232) reaction have been measured for 0.7 < cos Theta(c.m.)(Pi) < 1 and E-gamma= 1.5-2.95 GeV at SPring-8/LEPS. The first-ever high statistics cross-section data are obtained in this kinematical region, and the asymmetry data for 1.5 < E-gamma(GeV) < 2.8 are obtained for the first time. This reaction has a unique feature for studying the production mechanisms of a pure uu quark pair in the final state from the proton. Although there is no distinct peak structure in the cross sections, a non-negligible excess over the theoretical predictions is observed at E-gamma= 1.5-1.8 GeV. The asymmetries are found to be negative in most of the present kinematical regions, suggesting the dominance of n exchange in the t channel. The negative asymmetries at forward meson production angles are different from the asymmetries previously measured for the photoproduction reactions producing a dd(-) or an ss quark pair in the final state. Advanced theoretical models introducing nucleon resonances and additional unnatural-parity exchanges are needed to reproduce the present data.</P>
Experimental investigation of a linear-chain structure in the nucleus <sup>14</sup>C
Yamaguchi, H.,Kahl, D.,Hayakawa, S.,Sakaguchi, Y.,Abe, K.,Nakao, T.,Suhara, T.,Iwasa, N.,Kim, A.,Kim, D.H.,Cha, S.M.,Kwag, M.S.,Lee, J.H.,Lee, E.J.,Chae, K.Y.,Wakabayashi, Y.,Imai, N.,Kitamura, N.,Lee North-Holland Pub. Co 2017 Physics letters. Section B Vol.766 No.-
It is a well-known fact that a cluster of nucleons can be formed in the interior of an atomic nucleus, and such clusters may occupy molecular-like orbitals, showing characteristics similar to normal molecules consisting of atoms. Chemical molecules having a linear alignment are commonly seen in nature, such as carbon dioxide. A similar linear alignment of the nuclear clusters, referred to as linear-chain cluster state (LCCS), has been studied since the 1950s, however, up to now there is no clear experimental evidence demonstrating the existence of such a state. Recently, it was proposed that an excess of neutrons may offer just such a stabilizing mechanism, revitalizing interest in the nuclear LCCS, specifically with predictions for their emergence in neutron-rich carbon isotopes. Here we present the experimental observation of α-cluster states in the radioactive <SUP>14</SUP>C nucleus. Using the Be10+α resonant scattering method with a radioactive beam, we observed a series of levels which completely agree with theoretically predicted levels having an explicit linear-chain cluster configuration. We regard this as the first strong indication of the linear-chain clustered nucleus.
Study on α-cluster levels in non-4n nuclei using low-energy RI beams
Yamaguchi, H,Kahl, D,Hayakawa, S,Sakaguchi, Y,Abe, K,Nakao, T,Suhara, T,Iwasa, N,Kim, A,Kim, D H,Cha, S M,Kwag, M S,Lee, J H,Lee, E J,Chae, K Y,Wakabayashi, Y,Imai, N,Kitamura, N,Lee, P,Moon, J Y,Lee, IOP Publishing 2017 Journal of physics. Conference series Vol.863 No.-
Jun, H.,Jung, H.,Imai, K. International Society for Horticultural Science ; 2017 Scientia horticulturae Vol.221 No.-
<P>The recently bred Korean strawberry (Fragaria x ananassa) cultivar 'Sulhyang' accounts for more than 83% of the strawberry cultivation area in Korea. Although strawberry growth properties vary among cultivars, knowledge related to those of 'Sulhyang' remains insufficient. We examined gas exchange characteristics in leaves of this cultivar in autumn and winter to obtain basic data related to this cultivar. The light saturation point of the net photosynthetic rate (P-n) at 25 degrees C leaf temperature and 400 mu mol mol(-1) CO2 was about 1750-2000 mu mol m(-2) s(-1) PPFD. The optimum leaf temperature of P-n was about 29 degrees C, but values did not differ greatly between 19 degrees C and 31 degrees C, at 1200 mu mol m(-2) s(-1) PPFD and 400 mu mol mol(-1) CO2. These results indicate that a high light condition is the most important factor affecting the strawberry cultivation in plastic houses and that temperature is the second most important. Results show that P-n did not saturate at 1400 mu mol mol(-1) CO2 under 1200 mu mol m(-2) s(-1) PPFD and 25 degrees C leaf temperature, with its enrichment effect as high as 60-80% (P-n at 1400 vs. 400 mu mol mol(-1) CO2). The P-n and dark respiration rate (R-d) among the first to fifth leaves from the top expanded leaf showed no great difference. However, P-n was generally higher in autumn plants at initial flowering than in winter plants at vigorous fruit setting. These findings constitute important fundamental information to support the technological development of strawberry cultivation, especially of 'Sulhyang'.</P>