The thesis Jiří Reinsberg (1918-2004) in the light of the written legacy is a finding aid of the archive fund consisting of the written bequest of Jiří Reinsberg: The czech roman-catholic priest, significant agent of the liturgical movement, scout, writer and publicist. In addition to the fundamental data of the archive fund, the thesis contains a biographical presentation of Jiří Reinsberg based on this fund as well as available bibliography, and a brief presentation of the archive fund and its thorough inventory. It also conducts a survey of other existing documentation to Jiří Reinsberg and recent research of his personality. Further, the thesis answers questions about the position of the archive fund in the context of the existing documentation to Jiří Reinsberg. It also shows the most significant components of the fund, the information about Jiří Reinsberg presented in the fund, and the importance of the fund for further research of Jiří Reinsberg. The thesis significantly contributes to the knowledge of Jiří Reinsberg`s childhood and family background which were both of crucial importance for his later life and work as well as his attitudes, interests, and main focuses. Besides, the thesis systematizes, amends, specifies and in some cases corrects information concerning other periods of...

Diese Arbeit befasst sich mit der Charakterisierung der Ladungssymmetrie in der CuO2 Ebene in den hochtemperatur-supraleitenden Kupraten (HTSCs - high-temperature superconducting cuprates). Hierfür wurden Experimente mit kernmagnetischer Resonance (NMR - nuclear magnetic resonance) an Einkristallen von YBa2Cu3O7 und YBa2Cu3O6.9 sowie an Pulverproben von YBa2Cu4O8 durchgeführt. Der Fokus der Arbeit lag auf der Untersuchung des elektrischen Feldgradientens (EFG) der CuO2 Ebene unter hohem Druck und unterschiedlichen Temperaturen. Neben dem Cu Kern wurde für die Hochdruck-NMR-Untersuchung zum ersten Mal auch der O Kern der CuO2 Ebene verwendet und für beide Kerne die Druckabhängigkeit des vollständigen EFG Tensors bestimmt. Zusätzlich wurde die Magnetfeldabhängigkeit des EFG untersucht. Ein Schwerpunkt der Arbeit lag in der Vorbereitung der NMR Druckzelle für Einkristallmessungen sowie deren Ausrichtung im Magnetfeld. Es konnte gezeigt werden, dass die örtliche Variation des Cu EFG Tensors in allen untersuchten HTSCs stark mit Druck zunimmt und ähnlich groß ist, wie die Variation des EFG durch chemisch induzierte Unordnung. Durch die Analyse der Cu und O NMR Spektren in YBa2Cu3O6.9 konnte gezeigt werden, dass der EFG der CuO2 Ebene nicht direkt durch die orthorhombische Kristallstruktur beeinflusst wird - so wie lange angenommen wurde - sondern durch eine geordnete Ladungsvariation am O erklärt werden muss. Druck und tiefe Temperaturen erhöhen die Ladungsordnung. Es konnte eine eindeutige, lokale Ladungssymmetrie und Amplitude bei 18 kbar und 100 K bestimmt werden, die quantitativ mit den Cu und O Spektren übereinstimmt. Die NMR Daten sind mit einer langreichweitigen Ladungsdichtewelle konsistent. Zusätzlich wurde herausgefunden, dass das Magnetfeld sowohl die Variation als auch die Orientierung des planaren Cu EFG beeinflusst. Mit der Arbeit konnte gezeigt werden, dass Ladungsordnung in Y-basierten HTSCs nahe der Dotierung mit der höchsten kritischen Temperatur (Tc) existiert und sie durch Druck, Variation der Temperatur sowie Magnetfelder beeinflusst werden kann.

The problem under investigation in this research is the development of a general approach that will establish a students knowledge level so that the student's learning can be optimized by beginning it at the most effective point. In preparation for this study, an active test with an acceptable CT3 homogeneity index was found. Two computer programs, RightOrder and MathTest, were written in Visual Basic. The latter administers the test, producing a file or responses that serves as input for the former, which performs the calculations and matrix manipulation necessary to determine the CT3 of a set of test items and construct a difficulty strata scale. The test was administered twice to the same population, the first time in the original item order. In the second administration, one item from each successive level of difficulty, beginning with the easiest, was given until the respondent answered incorrectly. Then all the remaining items were presented in order of difficulty, beginning with the easiest. The three hypothesis of this study are (a) the difficulty strata scale generated from the computerized retest, using a z-score to be determined as critical value, is congruent with that derived from the analysis done on the data of the first application of the computerized test, (b) the time spent to establish the knowledge level is shorter than the time spent taking the full test, and (c) the test, reordered according to ordering theory principles, is an accurate method of establishing a student's knowledge level.

Ni-based superalloys are the important materials for gas turbines in advancedaeroplane engines . The addition of refractory elements to these superalloys,such as rhenium and tungsten, can significantly improve the hightemperatureperformance by so-called solid-solution hardening. Although thestrengthening effect of refractory elements in Ni-based superalloys have beenknown for a long time, the effective interactions among alloying componentsas well as the atomic ordering in the alloy systems are still under investigationand even under debate. In this work, we study these interactions and thisordering for two binary alloys, Ni-rich Ni-Re and Ni-rich Ni-W, by means ofab initio simulations and statistical mechanics simulations based on the IsingHamiltonian. For the Ni-rich Ni-Re alloys, we show that the effective cluster interactionsvary substantially depending on the temperature, concentration of the componentsand the magnetic state of the matrix. The strain-induced interactionshave large contribution to the nearest-neighbor pair-interactions and some multisitecluster-interactions in the ferromagnetic and nonmagnetic states. Theordering tendency of binary Ni-Re alloy systems can be predicted in terms ofordering energy and enthalpy of formation. We show that the D1a orderedstructure should be stable at the concentration of 20 at.% Re in the Ni-rich Ni–Re alloy system. The Monte Carlo simulations of Ni-Re random alloysshow the existence with the D1a-Ni4Re ordered structure at low temperatures. We also calculated lattice parameters for different compositions of Ni-rich Ni-W alloys, and we find that lattice parameters of random Ni-W alloys increaselinearly with the concentration of W. This is in good agreement withthe Vegard’s law predictions and experimental data. We investigated phasestability of Ni-rich Ni-W alloys in terms of the enthalpies of formation andordering energies. We find the chemical pair interactions are sensitive to themagnetic state and concentration. The calculated strain-induced interactionsare quite large for the first coordination shell, which is due to a large sizemismatch of Ni and W. Taking local lattice relaxation into account, the Ni-Wsystems were modeled by Monte Carlo method. The D1a-Ni4W ordered structurecan be observed up to 22 at.% W. In higher concentrations of W, in ourMC calculations, the DO22-Ni3W and Pt2Mo-Ni2W ordered structures can beobserved in Ni-25 at.% W alloy and Ni-33 at.% W alloy, respectively. / <p>QC 20160721</p>

The study's purpose is to present additional information about how individualistic and collectivistic cultural differences might affect the customer's attitude towards UX and UI on online food ordering applications. The authors found that individuals' cultural background can in some cases have an impact on their attitude towards UX and UI on food ordering applications. The study's conclusion covered the themes; simplicity, information, experience and aesthetic. As a result, the study could be interpreted as potential guidelines to improve companies' applications and potentially attract a wider target group.

京都大学 / 新制・課程博士 / 博士(情報学) / 甲第23319号 / 情博第755号 / 新制||情||129(附属図書館) / 京都大学大学院情報学研究科社会情報学専攻 / (主査)教授 吉川 正俊, 教授 田島 敬史, 教授 緒方 広明 / 学位規則第4条第1項該当 / Doctor of Informatics / Kyoto University / DFAM

京都大学 / 0048 / 新制・課程博士 / 博士(情報学) / 甲第18700号 / 情博第550号 / 新制||情||97(附属図書館) / 31633 / 京都大学大学院情報学研究科知能情報学専攻 / (主査)教授 河原 達也, 教授 黒橋 禎夫, 教授 鹿島 久嗣, 准教授 森 信介 / 学位規則第4条第1項該当 / Doctor of Informatics / Kyoto University / DFAM

京都大学 / 0048 / 新制・課程博士 / 博士(工学) / 甲第19318号 / 工博第4115号 / 新制||工||1634(附属図書館) / 32320 / 京都大学大学院工学研究科合成・生物化学専攻 / (主査)教授 松田 建児, 教授 北川 進, 教授 杉野目 道紀 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DGAM

京都大学 / 新制・課程博士 / 博士(工学) / 甲第24581号 / 工博第5087号 / 新制||工||1974(附属図書館) / 京都大学大学院工学研究科材料工学専攻 / (主査)教授 田中 功, 教授 安田 秀幸, 教授 中村 裕之 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM

<p>As the economy recovered with the winding down of the pandemic, businesses with complex supply chains could not bring their inventories back to optimal levels as their production was susceptible to disruption due to supply outages. Deriving optimal ordering policies as a way to mitigate the impact of production disruption represents a challenge in multi-stage decision problems given the complexity of the network and the uncertainty in the demand.</p> <p><br></p> <p>In the first part of the thesis, we formulate a stochastic inventory control problem for a general supply network model. Using the Bellman’s recursion and properties of the cost function at each stage, we characterize the optimal request decision as a threshold policy where the threshold computation is based on the marginal cost. Lastly, we validate that the policy developed minimizes the inventory cost and meets an exogenous random demand. However, the policy does not guarantee that the inventory level for each firm satisfies the constraints when a supply disruption occurs in the network.</p> <p><br></p> <p>In the second part of the thesis, we consider a serial network in which firms engage in production subject to disruption risk and they look to maximize their profit. We propose an algorithm to characterize a stationary optimal policy based on the closed-form solutions obtained from a discounted finite horizon problem for profit maximization. Finally, by computing the policy proposed as a function of the tier’s location and its disruption probability, we provide simulation results of the disruption effect in the supply network.</p>