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血淸 α-, β-LIPOPROTEIN CHOLESTEROL量으로 본 母體, 胎兒間의 큰 差異에 對하여
申鉉球,崔漢雄,李基寧 서울대학교 1959 서울대학교 論文集 Vol.8 No.-
The serum α, βlipoprotein cholesterols were determined by a slightly modified Nury’s method in the maternal and umbilical bloods in fifty cases of delivery. (1) Serum total cholestero'; The content of serum total cholesterol in the maternal side is 163.3±47.9㎎.%, while that of fetal one is only 50.2±20.5㎎.%; thus the former has the serum total cholesterol more than three times as compared to the latter. The content of the maternal serum total cholesterol is higher than that of normal Koreans (138.8±28.6㎎.%). (2) Serum αlipoprotein cholesterol; The serum αlipoprotein cholesterol level of maternal side is 29.4±13.6㎎.%, of which ratio to the total serum cholesterol is about 0.19. The fetal one, however, is 17.7±7.2㎎.%. and its ratio to the serum total cholesterol is about 0.35. This means that the relative content of serum αlipoprotein cholesterol of fetal side is much higher than that of the maternal one. (3) Serum βlipoprotein cholesterol; The maternal serum βlipoprotein cholesterol content is 134.8±41.2㎎%, which corresponds to 80.9% of serum total cholesterol, while that of the fetal side is only 32.0±13.4㎎.% consisting 64.7% of serum total cholesterol. (4) Serum β/αlipoprotein cholesterol ratio; The maternal serum β/αlipoprotein cholesterol ratio is 4.9±1.4, which is higher than that of normal Koreans (3.7), while the fetal one is only 1.9 corresponding to about one third of the maternal one.
Precise measurement of hadronic <i>τ</i>-decays with an <i>η</i> meson
Inami, K.,Ohshima, T.,Kaji, H.,Adachi, I.,Aihara, H.,Arinstein, K.,Aulchenko, V.,Aushev, T.,Bedny, I.,Bhardwaj, V.,Bondar, A.,Brač,ko, M.,Browder, T.E.,Chang, M.-C.,Chao, Y.,Chistov, R.,Cho, I.-S Elsevier 2009 Physics letters: B Vol.672 No.3
<P><B>Abstract</B></P><P>We have studied hadronic <I>τ</I> decay modes involving an <I>η</I> meson using 490 fb<SUP>−1</SUP> of data collected with the Belle detector at the KEKB asymmetric-energy <SUP>e+</SUP><SUP>e−</SUP> collider. The following branching fractions have been measured: B(<SUP>τ−</SUP>→<SUP>K−</SUP>η<SUB>ντ</SUB>)=(1.58±0.05±0.09)×<SUP>10−4</SUP>, B(<SUP>τ−</SUP>→<SUP>K−</SUP><SUP>π0</SUP>η<SUB>ντ</SUB>)=(4.6±1.1±0.4)×<SUP>10−5</SUP>, B(<SUP>τ−</SUP>→<SUP>π−</SUP><SUP>π0</SUP>η<SUB>ντ</SUB>)=(1.35±0.03±0.07)×<SUP>10−3</SUP>, B(<SUP>τ−</SUP>→<SUP>π−</SUP>KS0η<SUB>ντ</SUB>)=(4.4±0.7±0.2)×<SUP>10−5</SUP>, and B(<SUP>τ−</SUP>→<SUP>K∗−</SUP>η<SUB>ντ</SUB>)=(1.34±0.12±0.09)×<SUP>10−4</SUP>. These results are substantially more precise than previous measurements. The new measurements are compared with theoretical calculations based on the CVC hypothesis or the chiral perturbation theory. We also set upper limits on branching fractions for <I>τ</I> decays into <SUP>K−</SUP>KS0η<SUB>ντ</SUB>, <SUP>π−</SUP>KS0<SUP>π0</SUP>η<SUB>ντ</SUB>, <SUP>K−</SUP>ηη<SUB>ντ</SUB>, <SUP>π−</SUP>ηη<SUB>ντ</SUB> and non-resonant <SUP>K−</SUP><SUP>π0</SUP>η<SUB>ντ</SUB> final states.</P>
Improved measurements of the partial rate asymmetry inB→hhdecays
Chao, Y.,Chang, P.,Abe, K.,Abe, K.,Aihara, H.,Asano, Y.,Aushev, T.,Bahinipati, S.,Bakich, A. M.,Ban, Y.,Bedny, I.,Bitenc, U.,Bizjak, I.,Blyth, S.,Bondar, A.,Brač,ko, M.,Brodzicka, J.,Browder, T. American Physical Society 2005 PHYSICAL REVIEW D - Vol.71 No.3
Synthesis of Co3O4 nanowire arrays supported on Ni foam for removal of volatile organic compounds.
Hui, K N,Yin, Cui-Lei,Hui, K S,Lee, J Y,Li, M,Lee, S K,Tsui, K L,Chao, C Y H,Kwong, C W American Scientific Publishers 2012 Journal of Nanoscience and Nanotechnology Vol.12 No.4
<P>Crystalline Co3O4 nanowire arrays freely supported on Ni foam are successfully synthesized using a template-free method. The effects of reaction time, concentration of reactants, and temperature on the morphology of the nanowires are studied. The results indicate that uniform Co3O4 nanowires could be synthesized at 90 degrees C, and a transformation of the samples' morphology from nanoparticles to nanowires to microrods is observed by controlling the concentration of the reactants. The well-ordered nanowires synthesized under the selected reaction conditions are composed of spinel Co3O4 with diameters of 500-580 nm and lengths of 6-8 microm. These nanowires show good catalytic activity for the ozone catalytic oxidation of toluene.</P>
Measurement of masses and branching ratios of Ξc+ and Ξc0 baryons
Lesiak, T.,Abe, K.,Abe, K.,Adachi, I.,Aihara, H.,Asano, Y.,Bahinipati, S.,Bakich, A.M.,Bay, A.,Bitenc, U.,Bizjak, I.,Bondar, A.,Bozek, A.,Brač,ko, M.,Brodzicka, J.,Browder, T.E.,Chao, Y.,Chen, A. Elsevier 2005 Physics letters: B Vol.605 No.3
<P><B>Abstract</B></P><P>We report a measurement of the Ξc+ and Ξc0 baryon masses, and the branching ratios for various <SUB>Ξc</SUB> decays, using 140 <SUP>fb−1</SUP> of data collected by the Belle experiment at the KEKB <SUP>e+</SUP><SUP>e−</SUP> collider. The mass splitting <SUB>mΞc0</SUB>−<SUB>mΞc+</SUB> is found to be 2.9±0.5 MeV/<SUP>c2</SUP>; this measurement is three times as precise as the current world average. We measure the branching ratios Γ(Ξc+→Λ<SUP>K−</SUP><SUP>π+</SUP><SUP>π+</SUP>)/Γ(Ξc+→<SUP>Ξ−</SUP><SUP>π+</SUP><SUP>π+</SUP>)=0.32±0.03±0.02 and Γ(Ξc0→p<SUP>K−</SUP><SUP>K−</SUP><SUP>π+</SUP>)/Γ(Ξc0→<SUP>Ξ−</SUP><SUP>π+</SUP>)=0.33±0.03±0.03, with improved precision, and measure Γ(Ξc+→pKS0KS0)/Γ(Ξc+→<SUP>Ξ−</SUP><SUP>π+</SUP><SUP>π+</SUP>)=0.087±0.016±0.014, Γ(Ξc0→Λ<SUP>K−</SUP><SUP>π+</SUP>)/Γ(Ξc0→<SUP>Ξ−</SUP><SUP>π+</SUP>)=1.07±0.12±0.07 and Γ(Ξc0→ΛKS0)/Γ(Ξc0→<SUP>Ξ−</SUP><SUP>π+</SUP>)=0.21±0.02±0.02 for the first time.</P>
Chao Liu,Jingwei Lv,Famei Wang,Qiang Liu,Haiwei Mu,Tao Sun,Qiang Liu,Paul K. Chu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2015 NANO Vol.10 No.8
Multilayered nanoshells have attracted much attention due to their unique optical, electronic and magnetic properties. In this work, numerical calculation using discrete dipole approximation (DDA) is conducted to investigate the quad-layered metal nanoshell consisting of a particle with a dielectric silica (SiO2) core, inner cadium sulfide (CdS) shell, middle indium tin oxide (ITO) shell and outer metal silver (Ag) shell. The phenomenon is interpreted by plasmon hybridization theory and the Ag–ITO–CdS–SiO2 multilayered nanoshells are studied by extinction spectra of localized surface plasmon resonance. The variation in the spectrum peak with nanoparticle thickness and refractive index of the surrounding medium is derived. The electric field enhancement contour around the nanoparticles under illumination is analyzed at the plasmon resonance wavelength. The |ω-->, |ω+->, and |ω-+> modes red-shift with the refractive index of the surrounding medium and increase in the layer thickness causes either blue-shift or red-shift as shown by the extinction spectra. The mechanism of the red-shift or blue-shift is discussed. The |ω--> blue-shifts and furthermore, the |ω-+> and |ω+-> modes of the Ag coated multilayered nanostructure are noticeable by comparing the extinction efficiency spectra of the Au–ITO–CdS–SiO2 and Ag–ITO–CdS–SiO2 multilayered nanoshells.
Analysis of Local Surface Plasmon Resonance in Multilayered Au/Ag/Graphene Nanoshells
Chao Liu,Zhaoting Liu,Jingwei Lv,Tao Sun,Qiang Liu,Haiwei Mu,Paul K. Chu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.5
"The localized surface plasmon resonance (LSPR) properties of Au/Ag/graphene nanoshells are studied by discrete dipole approximation (DDA). The coupled resonance wavelengths show a remarkable dependence on the graphene thickness as well as refractive index of the surrounding medium. The resonance wavelengths of Au/Ag/graphene nanoshells red-shift as the thickness of the graphene layer is increased, when the radii of the Au core and Ag interlayer are 40 nm and 45nm, respectively. Specifically, the longer wavelength red-shifts from 540 nm to 740 nm when the refractive index varies from 1.25 to 2.05. "