Observation of B̅0→D(*)0pp̅

journal articl

Probabilistic Operation of Electric Power Systems Considering Environmental Constraint (Part 10)* -Comparsion with Quadratic Programming Method-

application/pdfWe previously described a fast scheduling method to consider every line capacity and emission constraint when each line and thermal unit fail probabilistically. The method is ａn approximate one because only two thermal units control the output power to satisfy the lines capacity and only a healthy state controls the emission excepting faulty states. The usefulness of the method is confirmed by comparing it with a strict method. The strict schedule is estimated by the quadratic programming method. This report describes the outlines of both the proposed method and the quadratic programming method. Both methods are applied to a model system and the results are shown concretely. It is also shown that the proposed method is useful because the maximum error is less than 2[％], and the computing time of the proposed method is more than 420 times as fast as the quadratic programming method when the emission constraint is not considered and 1600 times as fast when it is considered.departmental bulletin pape

ショクブツ ビショウカン フズイ タンパクシツ ニ ヨル ビショウカン キノウ ノ セイギョ

奈良先端科学技術大学院大学博士(バイオサイエンス)doctoral thesi

An Analysis of the Inertia Weight Parameter for Binary Particle Swarm Optimization

In particle swarm optimization (PSO), the inertia weight is an important parameter for controlling its search capability. There have been intensive studies of the inertia weight in continuous optimization, but little attention has been paid to the binary case. This paper comprehensively investigates the effect of the inertia weight on the performance of binary PSO (BPSO), from both theoretical and empirical perspectives. A mathematical model is proposed to analyze the behavior of BPSO, based on which several lemmas and theorems on the effect of the inertia weight are derived. Our research findings suggest that in the binary case, a smaller inertia weight enhances the exploration capability while a larger inertia weight encourages exploitation. Consequently, this paper proposes a new adaptive inertia weight scheme for BPSO. This scheme allows the search process to start first with exploration and gradually move toward exploitation by linearly increasing the inertia weight. The experimental results on 0/1 knapsack problems show that the BPSO with the new increasing inertia weight scheme performs significantly better than that with the conventional decreasing and constant inertia weight schemes. This paper verifies the efficacy of increasing inertia weight in BPSO. © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works

第2章 Mathematics in English(V. 研究的探究活動の取り組み)

2010-01-25departmental bulletin pape

Mesoporous Hollow Nested Nanospheres of Ni, Cu, Co-Based Mixed Sulfides for Electrocatalytic Oxygen Reduction and Evolution

Nanostructured thiospinel-based transition metal sulfides with high-density active sites hold great application potentials as non-noble electrocatalysts. In this paper, high-performance bifunctional oxygen electrocatalysts of well-designed Ni, Cu, Co-based mixed sulfides, which combine two highly active thiospinels of NiCu2S4 and CuCo2S4, have been prepared successfully through solvothermal reaction, calcination, and the following sulfurization. The products of Ni, Cu, Co-based mixed sulfides present unique hollow structures with mesopores, in which several nanoparticles-assembled hollow nanospheres of 30–50 nm in thickness are nested one by one, forming multishell morphologies. Benefiting from the synergistic effect from combined NiCu2S4 and CuCo2S4 and the well-designed hollow structures with large electroactive surfaces/interfaces and efficient mass transportation, the obtained Ni, Cu, Co-based mixed sulfides exhibit remarkable electrocatalytic activities and excellent long-term durability toward not only oxygen reduction reaction (ORR) but also oxygen evolution reaction (OER). Regarding the overall oxygen-based electrocatalytic performance, the mixed sulfides present an extremely low potential difference (0.73 V) between the ORR and OER in KOH electrolyte, delivering significant superiority to their oxide counterparts and the commercial catalyst of Pt/C, as well as most of the oxygen bicatalysts reported recently. Therefore, the obtained Ni, Cu, Co-based mixed sulfides hold great promise as low-cost bifunctional catalysts with high efficiency for oxygen-based advanced energy storage systems

Cells with impaired Ssa2p•Mas5 complex have decreased cortical Cdc42 activity and exhibit monopolar intermittent growth pattern.

<p>(<b>A</b>) Single z-plane images of calcofluor stained log-phase cells with indicated genotypes. Arrows point to birth-scars. (<b>B</b>) New-cell-end length as a function of cell length for cells with indicated genotypes. Points represent individual cells, lines represent the linear regression of a sample and p-values were obtained through ANCOVA. (<b>C</b>) Kymographs of bright-field microscopy time-lapse analyses of cells with the indicated genetic backgrounds grown in a perfusion chamber at room temperature. Arrowheads point to growth pauses characteristic to <i>ssa2Δ</i> and <i>mas5Δ</i> cells. (<b>D</b>) Shown are whole cell maximum intensity <i>z</i>-projections of scanning confocal micrographs of log-phase cells with indicated genotypes expressing CRIB-GFP, arrowheads point to cell tips lacking Cdc42 activity. (<b>E</b>) Quantification of CRIB-GFP intensities along the long cell axis in log-phase wild type (left panel), <i>mas5Δ</i> (middle panel) and <i>ssa2Δ</i> cells (right panels). Individual lines correspond to individual cells. (<b>F</b>) Kymographs of single <i>z</i>-plane spinning disk confocal microscopy time-lapse of wild type (left panel), <i>mas5Δ</i> (middle panel) and <i>ssa2Δ</i> cells (right panels) grown at room temperature. Arrows point to intermittent Cdc42 activity bursts associated with longitudinal growth seen in <i>mas5Δ</i> and <i>ssa2Δ</i> cells. (<b>G</b>) Single z-plane images of calcofluor stained log-phase cells with indicated genotypes grown in minimal medium in the presence or absence of thiamine for 30 hours and shifted to YE medium for 7 hours prior to fixation and staining. Arrows point to birth-scars. (<b>H</b>) New-cell-end length as a function of total cell length for cells presented in (<b>G</b>). Points represent individual cells, lines represent the linear regression of a sample and p-values were obtained through ANCOVA. (<b>I</b>) Kymographs of bright-field microscopy time-lapse analyses of cells with the indicated genetic backgrounds grown in a perfusion chamber at room temperature. Blue arrowheads point to growth pauses and a magenta arrowhead indicates onset of bipolar growth. Scale bars, 5 µm.</p

Quantitative estimation of the SJTD-1-mediated degradation of <i>n</i>-hexadecane.

<p>The strain was cultured in BSM supplemented with 250 mg/L (▪), 500 mg/L (•), 1,000 mg/L (▴), and 2,000 mg/L (▾) of <i>n</i>-hexadecane at 30°C for seven days; Δ indicated as the <i>n</i>-alkane residues of the abiotic controls. Standard errors were calculated from three independent determinations.</p

Photoresponse of Donor/Acceptor Blends in Organic Transistors: A Tool for Understanding Field-Assisted Charge Separation in Small Molecule Bulk Heterojunction Solar Cells

Photoresponse and ambipolar charge transport in organic bulk heterojunctions (BHJ) is investigated using field-effect transistors (FET) based on two donors, poly­(3-hexylthiophene) (P3HT) and 3,6-bis­(5-(benzofuran-2-yl)­thiophen-2-yl)-2,5-bis­(2-ethylhexyl)­pyrrolo­[3,4-c]­pyrrole-1,4-dione (DPP­(TBFu)₂) blends with [6,6]-phenyl-C70-butyric acid methyl ester (PC₇₀BM) acceptor. Upon 100 mW/cm² AM 1.5 G illumination, P3HT:PC₇₀BM shows an equivalent hole and electron current together with a largely enhanced photoresponse in the FET. The DPP­(TBFu)₂:PC₇₀BM blends display an electron-dominating transport along with showing a relatively poor photoresponse in FETs upon irradiation. By comparing the two systems, it suggests that DPP­(TBFu)₂:PC₇₀BM possesses a less-efficient charge separation assisted by electric fields after exciton dissociation. The FET results correlate well to the solar cell device performance and provide further understanding and optimizing of solution-processed DPP small molecule solar cells

3D-bar growth representations of all the defective mutants with C₁₂–C₂₄<i>n-</i>alkanes.

<p>Values on the horizontal axis profile the genotype of the mutants with single or multiple deletions of alkane hydroxylases; The Y-axis specifies the tested <i>n-</i>alkanes, coloring from black to dark blue black. The Z-axis of bar altitudes represents the OD₆₀₀ for the viability of each mutant. Sharp contrasts were symbolized using arrows when both <i>alkB1</i> and <i>alkB2</i> were knocked out, and cultivated in C₁₆ and C₁₈ alkane media, respectively.</p