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A new neutron reflectometer SHARAKU with vertical sample-plane geometry was installed on the beam line 17 (BL17) at Materials and Life science experiment Facility (MLF) at J-PARC. Magnetism in a thin magnetic film is one of the main targets on SHARAKU and polarizing devices and neutron spin flippers are required. Since polarized neutrons of wavelength from 0.24 nm to 0.64 nm can be used on SHARAKU, a neutron spin flipper has to control white neutron beam. A two-coil neutron spin flipper (Drabkin spin flipper) is one of the powerful devices to control neutron spin with white beam. In this study, the two-coil flipper was designed and installed in SHARAKU. Demonstration of the two-coil flipper was also performed and polarization of more than 0.95 with wavelengths ranging from 0.24 nm to 0.64 nm was obtained.

A novel combustion model for large-eddy simulation (LES) for gasoline engines has been developed. Unlike conventional models based on Reynolds-averaged Navier–Stokes (RANS) models, the new model takes a unique approach; it is described by the fractal characteristics of flame front and a universal expression for the subgrid scale (SGS) flame speed. The present fractal combustion model was applied to calculations of a spark ignition engine. Both the 0–10 per cent and 10–90 per cent combustion periods agree well with the experimental data. Because the modelling of the SGS turbulent speed is based on fractal analysis with experimental observations, the SGS combustion model is able to apply a wide range of engine operating conditions. The present model was applied to a multi-cycle simulation of a single-cylinder engine. The fluctuations at the instant when the heat release rate peaked were compared with data that was obtained experimentally. The calculated magnitude of the fluctuations was found to be close to the experimental values. It is thought that the flow variation generated during the intake stroke significantly influences the cyclic variations.

The systematic variations in structural, optical and electrical properties of lead phthalocyanine (PbPc)-based solar cells with organic buffer layers were investigated. Transition of the PbPc crystal from a monoclinic phase to a triclinic one was observed when the buffer layers were changed. The structural properties of triclinic PbPc grown on the sexithiophene (6T) buffer layer was superior to those of PbPc grown on the other organic substrates. Since the crystal growth of organic layers is dominated by the anisotropic intermolecular interactions at organic hetero-interfaces, the highly oriented 6T buffer layer with the atomically flat morphology promotes the growth of well-ordered PbPc layers. The performance of the organic solar cells (OSCs) was in direct correlation with the structural and electrical properties of the PbPc single layers. The formation of the triclinic phase enhances the spectrum sensitivity at around 890 nm, suggesting the enhancement of the current density of OSCs. Thus, the control of both crystal quality and phase of PbPc layers using a proper organic buffer layer is effective in enhancing the device performance of OSCs.

A characteristic nonlinear electric responses were found in a charge ordered type ferroelectrics LuFe2O4 with less oxygen deficiency. Cole – Cole circular in the dielectric response varies in the function of the amplitude of the AC electric field. With a synchrotron radiation diffraction experiment under the current revealed the variation of the coherence length of the polar charge ordered W-layer along c-axis. The nonlinear response with the increase of the electronic current may relates to the electron hopping in the charge stripe structure.

Orthodontic diagnosis is currently based primarily on two-dimensional (2D) measurements. The development of maxillofacial cone beam X-ray computed tomography (CBCT) has promoted the use of three-dimensional (3D) measurements for orthodontic diagnosis. This technology is also expected to generate new analytic methods aiming at establishing optimal occlusion according to the individual's maxillary shape and function. However, during the transitional stage from 2D to 3D measurements, it is necessary to relate 3D data to existing data analysis methods (e.g., lateral cephalogram) for the assessment of skeletal and dental relationship. Our objectives were to develop a new cephalometric analysis method based on 3D data obtained by CBCT from four aspects: (1) measurement of magnification of cephalogram, (2) assessment of the dimensional accuracy of CBCT images, (3) development of a method of cephalometric analysis using CBCT images and (4) comparison of cephalometric analytical values obtained from CBCT images with those obtained from existing cephalograms. The results demonstrated that our analytical method facilitated cephalometric analysis of CBCT images and therefore allowed direct comparison of CBCT images with existing cephalograms. Cephalometric analysis using CBCT images resulted in a smaller range of inter-operator measurement variability than that using conventional cephalograms.

The band dispersion of potassium on highly oriented pyrolytic graphite (HOPG) has been studied by angle-resolved photoemission spectroscopy (ARPES). The ARPES around the K point shows shifts of the π and π ∗ bands toward higher binding energies upon K adsorption in the submonolayer regime, showing charge transfer from the adsorbed potassium to the graphite π ∗ band and an ionic bond between potassium and graphite. In addition, upon the K adsorption, gap opening between the π and π ∗ bands, which degenerate at the Brillouin zone corner in graphite, is confirmed by the k ∥ -band map around the K point. This change in the dispersion of the π and π ∗ bands upon the K adsorption is consistent with calculations reported for bilayer graphite under an electric field, while the K adsorption involves increase in the carrier density. The concentration of electron charge near the surface results in enhanced two-dimensionality of the π band. It is found from the ARPES at the zone center that electron charge resides at the potassium atoms in the ionic bond between K and graphite even at low K coverage below the saturation of the charge condensation at the graphite surface. In multilayer K/HOPG, a metallic bond among the adsorbed K atoms stabilizes and leads to reduced charge transfer to graphite.

We have used photoelectron emission microscopy (PEEM) and X-ray magnetic circular dichroism (XMCD) to study the effect of thin film thickness on the magnetic domain formation in La 0.6 Sr 0.4 MnO 3 samples that were epitaxially grown on stepped SrTiO 3 (0 0 1) substrates. The magnetic image exhibited a stripe structure elongated along the step direction, irrespective of film thickness, suggesting that uniaxial magnetic anisotropy induced by step-and-terrace structures plays an important role in the magnetic domain formation. Additional domains evolved gradually with increasing film thickness. In these domains, the direction of magnetization differed from the step direction due to biaxial magneto-crystalline anisotropy. The evolution of additional magnetic domains with increasing film thickness implies that a competition exists between the two anisotropies in LSMO films.

Slit nozzles are used in some gasoline direct injection engines and makes fan shaped spray. Spray injecting flows to turbulent flows from a slit nozzle have been analyzed numerically using combination of Large Eddy Simulation (LES) and lagrangian Discrete Droplet Method (DDM). As a result, LES can resolve the internal structure of the spray and irregular droplet distribution made by small eddies that momentum of spray itself induced. In conventional Reynolds Averaged Navier-Stokes (RANS) combined DDM calculation such eddies cannot be resolved, and also the internal spray structure or irregularity doesn't appear since all effects of turbulence are averaged. But such structure or irregularity is important for stable combustion in gasoline direct injection engines. Therefore the combination of LES and DDM method will play essential role for developing more robust and high efficient engines under wide operating conditions. We also proposed the way of constructing pseudo particle image in order to compare calculation results with sliced spray pictures obtained by experiments. We show time changes of the shape of brightness Probability Density Function (PDF) can be used to evaluate variance of spray droplets.

We report on the first observation of magnetoelectric X-ray scattering (MEXS), i.e., incident- k -direction-dependent scattering, for a polar ferrimagnet GaFeO 3 . Near the K edge of Fe, the magnet...

3D biomechanical simulation including patient specific FEM based on Cone Beam X-ray CT data was developed for planning of individual treatment goal in Orthodontic treatment.

Structured Abstract Authors– Nakano H, Watahiki J, Kubota M, Maki K, Shibasaki Y, Hatcher D, Miller AJ Objectives –To investigate the influence of forced lateral bite on mandibular growth, micro X-ray computed tomography (CT) was used for the purpose evaluating condylar cartilage and cancellous bone formation in 10 male Wister rats (3 weeks of age). Settings and sample population –The rats were divided into two groups – experimental and control. In experimental group, an inclined crown was cemented onto the maxillary incisors to produce 2.5 mm shift toward the left side during mastication. Right–left differences in whole mandibular length, mandibular height, condylar size, trabecular structure of the condylar head and three-dimensional (3-D) finite element analysis were assessed using 3-D images reconstructed from micro X-ray CT scans when the mice had reached 21 weeks. Measurements and Results –Asymmetrical growth was found in the experimental group, in which the left condylar head became thicker and shorter than the right condylar head during development. When comparing the left and right condyles of the experimental animals, histomorphometric analysis from micro X-ray CT showed that the bone volume (BV) of the cancellous bone, the surface area of the cancellous bone (BS), the BS/BV ratio, the BV fraction (BV/TV), and the trabecular thickness and trabecular number were less for the right condyle than for the left condyle. Conclusions –These findings suggested that artificial changes in the mastication do influence the growth of condylar head, condylar bone trabecular structure, and mineralization.

Resonant X-ray scattering experiments have been performed on perovskite manganite La 0.5 Sr 0.5 MnO 3 thin films, which are grown on three distinct perovskite substrates with a coherent epitaxial strain and have a forced ferro -type orbital ordering of Mn 3 d orbitals. Using an interference technique, we have successfully observed the resonant X-ray scattering signal from the system having the ferro -type orbital ordering and also revealed the energy scheme of Mn 4 p bands. For the forced ferro -type orbital ordering system, the present results evidence that the resonant X-ray scattering signal originates from the band structure effect due to the Jahn–Teller distortion of a MnO 6 octahedron, and not from the Coulomb interaction between 3 d and 4 p electrons.

A direct injection gasoline engine employing a new stratified combustion system has been developed. A fan-shaped fuel spray and a shell-shaped piston cavity achieved the combustion strategy. The process of stratified mixture formation and consequent stratified combustion is affected by the fuel spray characteristics, therefore numerical analysis (CFD) was applied to understand the phenomena of mixture formation process. From the results of CFD, it was clarified that the vaporization characteristic is important in realizing a suitable stratified mixture formation, in addition to the spray liquid characteristics, and CFD enables prediction and analysis of actual phenomena.

Using Co L 2,3 resonant soft X-ray scattering measurement, we reveal that the magnetic orderings with q = (1/2, 0, 1/2) and (1/2, 0, 1) originate from different magnetic domains. Temperature dependence of the magnetic ordering peaks clearly shows that there is a finite difference between the transition temperatures of these magnetic orderings.

We have performed angle-resolved photoemission spectroscopy study of the electronic structure of the tri-layer high- T c cuprate superconductor Bi 2 Sr 2 Ca 2 Cu 3 O 10 + δ and observed separate band dispersions and Fermi surfaces corresponding to the outer and inner CuO2 planes. From the band dispersions, the c-axis hopping parameter t ⊥ between the outer and inner CuO2 planes is estimated to be ∼56 meV.

We have performed a photoemission spectroscopy study of the newly discovered iron-based superconductors LaFeAsO 1- x F x and LaFePO 1- x F x . The valence-band spectra show a narrow Fe 3 d -derived band near E F indicating the itinerant character of the Fe 3 d states. In going from the undoped to F-doped compounds, all the spectra are found to shift to higher binding energies, consistent with electron doping within the rigid-band model. Also, in going from LaFeAsO 1- x F x to LaFePO 1- x F x , the near- E F intensity increases reflecting the weakening of electron correlation.

To clarify an electronic structure of an layered manganite, we have performed angle-resolved photoemission spectroscopy on La 2−2 x Sr 1+2 x Mn 2 O 7 ( x = 0.45 ), in which a phase transition occurs from an antiferromagnetic insulating phase to a canted antiferromagnetic metallic phase at 95 K. A spectral weight at the Fermi level is suppressed at 10 K, which is in contrast with the findings that a finite spectral weight exists for x = 0.40 [N. Mannella, W. Yang, X.J. Zhou, H. Zheng, J.F. Mitchell, J. Zaanen, T.P. Devereaux, N. Nagaosa, Z. Hussain, Z.-X. Shen, Nature (London) 438 (2005) 474; Z. Sun, Y.-D. Chuang, A.V. Fedorov, J.F. Douglas, D. Reznik, F. Weber, N. Aliouane, D.N. Argyriou, H. Zheng, J.F. Mitchell, T. Kimura, Y. Tokura, A. Revcolevschi, D.S. Dessau, Phys. Rev. Lett. 97 (2006) 056401; Y.-D. Chuang, et al., Science 292 (2001) 1509]. On the other hand, the mapping of the spectral weight in the vicinity of the Fermi level possesses a rather straight part in the Brillouin zone. This is a common feature of an electronic structure in a wide hole concentration range of the La 2−2 x Sr 1+2 x Mn 2 O 7 system, which is independent of a magnetic structure.

Using photoemission (PES) spectroscopy and a first-principles band-structure calculation, we have investigated the electronic structure of perovskite-type Ti-Cr oxides Sr 1 - ( x + y ) La x + y Ti 1 - x Cr x O 3 , in which the charge and spin density can be controlled. It was found that the near-Fermi level ( E F ) electronic structure consisted of a Cr 3d localized state and a Ti 3d itinerant state that were well separated in energy. The spectral weight of the Cr 3d state was proportional to x , demonstrating a controllable spin density. In contrast, the near- E F spectral weight exhibited different behavior. The band theory has reproduced the essential features of the Cr and Ti 3d states as well as the O 2p ones, but failed to predict the location of the Cr 3d and O 2p states. Implications of this discrepancy have been discussed in connection with calculated magnetic moments.

Electronic structure of the monolayer strontium ruthenate Sr 2 RuO 4 was investigated by high-resolution angle-resolved photoemission spectroscopy. We present photon-energy ( h ν ) dependence of the electronic structure near the Fermi level along the Γ M line. The h ν dependence has shown a strong spectral weight modulation of the Ru 4 d xy and 4 d zx bands.

The Tb 4f electronic states of Tb inner layer are studied using resonance photoemission at Tb N 4,5 adsorption edge for Fe/Tb multilayers. A weight of the Tb 4f 7/2 electronic states depends on the Tb layers thickness. The increasing of the density of the Tb 4f 7/2 electronic states in the Fe/Tb multilayers with thin Tb layers is due to the Fe–Tb interface effect.

We performed soft X-ray resonant scattering experiments on poly (3-hexylthiophene) (P3HT):[6,6]-phenyl-C61-buteric acid methyl ester (PCBM) blend thin films to reveal the domain structure and electronic state, where P3HT and PCBM mean regioregular poly (3-hexylthiophene) and [6,6]-phenyl-C61-buteric acid methyl ester, respectively. We measured two films, where chloroform (CF sample) and 1,2-dichlorobenzene (DCB sample) are used as solvents in the fabrication process. There is negligible X-ray incident angle dependence of the X-ray absorption spectra at the S K-absorption edge in the CF sample, whereas the DCB sample exhibits clear incident angle dependence. We obtained the wave-number resolved spectra at Q = (1, 0, 0) for P3HT molecules in both samples. The packing growth of P3HT molecules is revealed to be much more developed in the DCB sample than in the CF sample. In addition, the electronic structure at local sulfur element sites clearly changes for both the samples.

We have performed an angle-resolved photoemission spectroscopy (ARPES) study of the iron-based superconductor PrFeAsO${}_{0.7}$ and examined the Fermi surfaces and band dispersions near the Fermi level. Heavily hole-doped electronic states have been observed due to the polar nature of the cleaved surfaces. Nevertheless, we have found that the ARPES spectra basically agree with band dispersions calculated in the local density approximation (LDA) if the bandwidth is reduced by a factor of $~$2.5 and then the chemical potential is lowered by $~$70 meV. Comparison with previous ARPES results on LaFePO reveals that the energy positions of the ${d}_{3{z}^{2}\ensuremath{-}{r}^{2}}$- and ${d}_{\mathit{yz},\mathit{zx}}$-derived bands are considerably different between the two materials, which we attribute to the different pnictogen height as predicted by the LDA calculation.

The final objective of this research is to estimate the demand for clean-fuel vehicles. This paper first describes the travel characteristics of existing vehicles such as distribution of distance travelled in a day, longest stopping time by vehicle type and region using data from the Road Traffic Census Survey. These characteristics are then compared with the performance level of present clean-fuel vehicles. the major findings are: a) travel characteristics vary much among vehicle types, notably between commercial vehicles and others; b) large portion of smaller cars and mini-cars are operated within the current performance level of corresponding clean-fuel vehicles.

${\text{Ca}}_{1\ensuremath{-}x}{\text{Sr}}_{x}{\text{VO}}_{3}$ is a Mott-Hubbard-type correlated electron system whose bandwidth can be varied by the V-O-V bond angle but the actual effect of bandwidth control on the electronic structure has been controversial in previous photoemission experiments. In this work, band dispersions and Fermi surfaces of ${\text{SrVO}}_{3}$ and ${\text{CaVO}}_{3}$ are studied by angle-resolved photoemission spectroscopy. Near the Fermi level $({E}_{F})$, three bands forming cylindrical Fermi surfaces derived from the three $\text{V}\text{ }3d$ ${t}_{2g}$ orbitals have been observed. The observed bandwidths for both compounds are almost half of those predicted by local-density approximation band-structure calculation, confirming mass renormalization caused by electron correlation. It has been clearly demonstrated that the width of the $d$ band in ${\text{CaVO}}_{3}$ is narrower than that in ${\text{SrVO}}_{3}$, qualitatively consistent with the result of band-structure calculation. Roles of the orthorhombic lattice distortion and electron correlation in the observed band narrowing are discussed.

We report the first observation of the multilayer band splitting in the optimally doped trilayer cuprate ${\mathrm{Bi}}_{2}{\mathrm{Sr}}_{2}{\mathrm{Ca}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{10+\ensuremath{\delta}}$ (Bi2223) by angle-resolved photoemission spectroscopy. The observed energy bands and Fermi surfaces are originated from the outer and inner ${\mathrm{CuO}}_{2}$ planes (OP and IP). The OP band is overdoped with a large $d$-wave gap around the node of ${\ensuremath{\Delta}}_{0}\ensuremath{\sim}43\text{ }\text{ }\mathrm{meV}$ while the IP is underdoped with an even large gap of ${\ensuremath{\Delta}}_{0}\ensuremath{\sim}60\text{ }\text{ }\mathrm{meV}$. These energy gaps are much larger than those for the same doping level of the double-layer cuprates, which leads to the large ${T}_{c}$ in Bi2223. We propose possible origins of the large superconducting gaps for the OP and IP: (1) minimal influence of out-of-plane disorder and a proximity effect and (2) interlayer tunneling of Cooper pairs between the OP and IP.

We have performed an angle-resolved photoemission spectroscopy (ARPES) study of Nd$_{1.85}$Ce$_{0.15}$CuO$_{4}$ (NCCO) in order to elucidate the origin of the high-energy kink (HEK) observed in the high-$T_{\rm c}$ superconductors (HTSCs). The energy scale of the HEK in NCCO is large compared with that in hole-doped HTSCs, consistent with previous ARPES studies. From measurement in a wide momentum region, we have demonstrated that between the hole- and electron-doped HTSCs the energy position of the HEK is shifted approximately by the amount of the chemical potential difference. Also, we have found that around $(\pi, 0)$ the HEK nearly coincides with the band bottom while around the node the band reaches the incoherent region and the HEK appears at the boundary between the coherent and incoherent regions., Comment: 5 pages, 3 figures

We have investigated the doping and temperature dependences of the pseudogap and superconducting gap in the single-layer cuprate ${\mathrm{La}}_{2\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$ by angle-resolved photoemission spectroscopy. The results clearly exhibit two distinct energy and temperature scales, namely, the gap around ($\ensuremath{\pi}$, 0) of magnitude ${\ensuremath{\Delta}}^{*}$ and the gap around the node characterized by the $d$-wave order parameter ${\ensuremath{\Delta}}_{0}$. In comparison with Bi2212 having higher ${T}_{c}$'s, ${\ensuremath{\Delta}}_{0}$ is smaller, while ${\ensuremath{\Delta}}^{*}$ and ${T}^{*}$ are similar. This result suggests that ${\ensuremath{\Delta}}^{*}$ and ${T}^{*}$ are approximately material-independent properties of a single ${\mathrm{CuO}}_{2}$ plane, in contrast to the material-dependent ${\ensuremath{\Delta}}_{0}$, representing the pairing strength.

We have performed angle-resolved photoemission spectroscopy measurements and first-principles electronic-structure calculations on the electron-doped high-${T}_{c}$ superconductors (HTSCs) $L{n}_{1.85}{\text{Ce}}_{0.15}{\text{CuO}}_{4}$ ($Ln=\text{Nd}$, Sm, and Eu). The observed Fermi surface and band dispersion show such changes that with decreasing ionic size of $L{n}^{3+}$ (increasing chemical pressure), the curvature of the Fermi surface or $\ensuremath{-}{t}^{\ensuremath{'}}/t$ decreases, where $t$ and ${t}^{\ensuremath{'}}$ are transfer integrals between the nearest-neighbor and next-nearest-neighbor Cu sites, respectively, explaining the apparently inconsistent behavior seen in the hole-doped HTSC ${\text{La}}_{2\ensuremath{-}x}{\text{Sr}}_{x}{\text{CuO}}_{4}$ under epitaxial strain. Around the node, the antiferromagnetic gap is opened with increasing chemical pressure. We propose that the nodal gap opening is possibly due to the decrease in $\ensuremath{-}{t}^{\ensuremath{'}}/t$ through the improved nesting, leading to the decrease in ${T}_{c}$.

How out-of-plane disorder affects the electronic structure has been investigated for the single-layer cuprates Bi{sub 2}Sr{sub 1.6}Ln{sub 0.4}CuO{sub 6+{delta}} (Ln = La, Nd, Gd) by angle-resolved photoemission spectroscopy. We have observed that, with increasing disorder, while the Fermi surface shape and band dispersions are not affected, the quasi-particle width increases, the anti-nodal gap is enhanced and the superconducting gap in the nodal region is depressed. The results indicate that the superconductivity is significantly depressed by out-of-plane disorder through the enhancement of the anti-nodal gap and the depression of the superconducting gap in the nodal region.

We have performed high-resolution angle-resolved photoemission spectroscopy of ${\text{YBa}}_{2}{\text{Cu}}_{3}{\text{O}}_{7\ensuremath{-}\ensuremath{\delta}}$ with various hole concentrations from under-to-optimal doping. We have determined the momentum dependence of bulk superconducting gap as a function of hole concentration and found the enhancement of antinodal gap, the deviation from simple ${d}_{{x}^{2}\ensuremath{-}{y}^{2}}$ wave, and the reduction of superconducting coherence weight in the underdoped region. We also found the universality of the doping dependence of the SC-gap size and symmetry in bilayered cuprates. These results suggest the importance of the long-range pairing interactions in the underdoped region.

The final goal of this research is to establish a systematic design method of T-shaped microreactors (T-MRs) with secondary flow using a reduced-order model (ROM). In this paper, a ROM which combines computational fluid dynamics (CFD) model and multi-resolution lamellar model is developed. Multi-resolution lamellar model is constructed from the N kinds of lamellar models with different width of layers. In each lamellar model, thin multi-layers of two fluids are arrayed alternately at the entrance of the mixing channel to express the increased material interface, and the concentration profiles in the flow direction are estimated by a reaction diffusion simulation between thin layers under the assumption of plug flow. The developed ROM requires the minimum number of CFD pre-simulations to extract model parameters such as weighting coefficients for superimposing different lamellar models. The main findings are: 1) the complicated mass transport processes of T-MRs obtained by 3-D CFD model is well captured by the ROM of 2-D, which is constructed from multi-resolution lamellas, and 2) the computational time based on the ROM is shortened to one-third of that based on just CFD model.

Neodymium strontium manganese oxide with ideal composition Nd0.5Sr0.5MnO3 was reported to have two different structure models. In one model, the x coordinate of an O atom is at x > 1/2, while in the other model the x-coordinate of this atom is at x < 1/2. Difference-density maps around this O atom obtained from the current redetermination clearly show that the structure with the O atom at x < 1/2 result in a more satisfactory model than that with x > 1/2. The title compound with a refined composition of Nd0.53 (5)Sr0.47 (5)MnO3 is a distorted perovskite-type structure with site symmetries 2mm for the statistically occupied (Nd, Sr) site and for the above-mentioned O atom, .2/m. for the Mn atom and ..2 for a second O-atom site. In contrast to previous studies, the displacement factors for all atoms were refined anisotropically.

We have performed angle-resolved photoemission and core-level x-ray photoemission studies of the single-layer cuprate Bi{sub 2}Sr{sub 2-x}La{sub x}CuO{sub 6+{delta}} (Bi2201) and revealed the doping evolution of the electronic structure from the lightly-doped to optimally-doped regions. We have observed the formation of the dispersive quasi-particle band, evolution of the Fermi 'arc' into the Fermi surface and the shift of the chemical potential with hole doping as in other cuprates. The doping evolution in Bi2201 is similar to that in Ca{sub 2-x}Na{sub x}CuO{sub 2}Cl{sub 2} (Na-CCOC), where a rapid chemical potential shift toward the lower Hubbard band of the parent insulator has been observed, but is quite different from that in La{sub 2-x}Sr{sub x}CuO{sub 4} (LSCO), where the chemical potential does not shift, yet the dispersive band and the Fermi arc/surface are formed around the Fermi level already in the lightly-doped region. The (underlying) Fermi surface shape and band dispersions are quantitatively analyzed using tightbinding fit, and the deduced next-nearest-neighbor hopping integral t also confirm the similarity to Na-CCOC and the difference from LSCO.