Rozprawy doktorskie: „Global harmony”

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Radoman, Slobodan M. Arch Massachusetts Institute of Technology. "Democratizing global tourism or designing diversity to reach harmony". Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82260.

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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 134-137).
The largest lake in the Balkans, the largest bird "airport" in Europe, multinational, protected under the Ramsar Convention, a candidate for the UNESCO transboundary biosphere enlisting, the Skadar Lake is yet, economically speaking, an "in between" region of Montenegro. The Skadar Lake is the size of the Venice lagoon, with which it shares a parallel potential: while the renaissance Venice was geographically impossible to conquer by its enemies, making it a safe trading destination, Skadar Lake is the forgotten ecological oasis with the potential to flourish new ecological development strategies. This thesis argues that performance, payback and social motivations as design strategies prompt a new type of thinking that simultaneously critiques and challenges the ecological neutrality with which the current architectural and urban design discourse perceives the life in rural areas. It examines tourism as a vehicle to develop the region; it ignites design strategies to experiment with culture and ecological processes in order to excite relationships between the locals and the tourists, the people and the environment. Describing the heritage processes in the National Park through Felix Guattari's three levels of ecology (the human, the social, and the environmental), and establishing new consumer tastes (geared towards social and multispecies interaction, gastronomy and other aspects of local material culture), the thesis attempts to answer the following questions: Can future development of the Skadar Lake region stimulate a mode diverse economy? How can a more experiential tourism, driven by altered consumerism, stimulate the valorization of the region's landscapes and further expand them? Lastly, when almost everything has been done already, how to redefine Skadar Lake's identity in order to secure it a place on the competitive global tourism map? The thesis objective is thus to design a platform - a hybrid of the Skadar Lake's identity and the experience thereof
by Slobodan Radoman.
M.Arch.

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Grazioli, Claudia <1994&gt. "和而不同 “Harmony, not uniformity” HRM in China: global models adapted to cultural diversity". Master's Degree Thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/14875.

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The purpose of my thesis is to understand how the cultural values and socio-economic factors impact the management of the personnel of companies in China, what are the strategies of Human Resources Management (HRM) able to make the companies competitive and winning on an international scale. In the first chapter I analyze the most meaningful events since Mao Zedong’s era to Deng Xiaoping’s era that may have influenced people and ideas and the first methods of HRM used in China, tracing the origins of modernity, taking into account the long-going relationship between tradition and innovation on which China feeds. In the second chapter I talk about the economic boom and I give an overview of the labor market in China today, both in its structure and in the management field. In the third chapter I explain the basics of cultural management as a tool for optimizing and synchronizing business operations. There is an analysis of the cultural factors that still influence everyday life and the various dynamics that affect the labor market and, consequently, the management of human resources. In the last chapter I analyze the personnel management in China, taking into account models considered global, but adapted at the same time to the different environmental and cultural context. I also speak about international careers, advantages and disadvantages of internal and cross-border recruitment, management of foreign assignments and techniques of training and learning that the group develops to support the expatriate staff and Chinese personnel, talking about different managers’ experiences.

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Ryan, Tim. "In Harmony : Virtual Power Plants: Predicting, Optimising and Leveraging Residential Electrical Flexibility for Local and Global Benefit". Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285482.

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Electrical demand flexibility is a key component to enabling a low cost, low carbon grid. In this study, residential electricity demand and flexibility is explored from the lens of a virtual power plant operator. Individual and aggregate asset consumption is analysed using a pool of >10,000 household assets over 6 years. Key safety, comfort and availability limitations are identified per asset type. Pool flexibility is analysed using a combination of past data and principled calculations, with flexibility quantified for different products and methods of control. A machine learning model is built for a small pool of 200 assets, predicting consumption 24 hours in advance. Calculated flexibility and asset limitations are then used within an optimisation model, leveraging flexibility and combining the value of self consumption and day ahead price optimisation for a residential home.
Flexibilitet i efterfrågan av elektricitet är essentiellt för att möjliggöra ett elnät med låga kostnader och utsläpp. I denna studie undersöks elanvändning av en bostad samt flexibilitet i perspektiv från en virtuell kraftverksoperatör. Individuell och sammanlagd konsumtion analyseras genom tillgång av data från >10 000 bostäder över 6 år. Begränsningar av säkerhet, komfort och tillgänglighet identifieras per tillgångstyp. Sammanlagda flexibiliteten analyseras genom en kombination av tidigare data och principiella beräkningar, med flexibilitet kvantifierad för diverse produkter och kontrollmetoder. En modell för maskininlärning utvecklades för 200 bostäder och förutser konsumtion 24 timmar i förväg. Den beräknade flexibiliteten och tillgångsbegränsningar används sedan i en optimeringsmodell som utnyttjar flexibilitet och kombinerar värdet av självkonsumtion och optimerat pris för nästkommande dag för ett bostadshus.

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Fagerström, Johanna. "How China and Nordic countries conceptualise Corporate Social Responsibility : – A study of senior decision-makers’ statements within the banking sector". Thesis, Högskolan Dalarna, Kinesiska, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:du-35145.

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The “statement” from senior decision-maker is a section in the sustainability report, where the most “senior decision-maker” of the institution (such as CEO, chairman, or equivalent senior position) gives the personal view about the relevance of sustainability to the institution and its strategy for addressing sustainability. Such a statement is one medium used by company leaders to communicate their attitudes and values to stakeholders in sustainability reports. Under commercial circumstances, sustainability is also referred to as Corporate Social Responsibility (CSR). This paper analyzes Chinese and Nordics senior decision-makers’ perception of CSR within the banking sector. The research sample consists of statements of senior decision-makers from sustainability reports of four Chinese banks, respective four Nordic banks. Previous studies show that CSR conception is influenced by cultural and social backgrounds. By analyzing respective Chinese/Nordic senior decision-maker’s statement, this study isaimingtofindout how Chinese/Nordic culture and social concepts are promoted in their respective bank institutions, and therefore lead to different CSR focus and strategies. The results from the study show that Chinese senior decision-makers’ statements are strongly influenced by traditional Chinese philosophy and social background, especially Confucian and Taoism, as well asXi Jinping’s guidelines delivered at the 19th National Congress of the Communist and the 13th Five-Year Plan. In relation to the Nordic senior decision-makers the gender equality and racial equality were noted. Senior decision-makers of Chinese banks mainly focus on “social stability and progress”, “economic responsibility”, and “customers”,while senior decision-makers of Nordic banks mainly focus on “economic responsibility”, “customers”, and “environmental protection”.
公司资深决策者(首席执行官，董事长，或同等级别)会在可持续发展报告中用一个章节来申明他们的观点。这个章节的内容涵盖可持续发展与该公司组织架构的相关度，以及该公司可持续发展的战略和对策。公司领导通过这种形式对股东传达公司的态度和价值观。在商业环境中，可持续发展也经常被称为公司社会责任(CSR)。本论文分析了中国和北欧银行业资深决策者们对于企业社会责任的认知。本论文的研究对象是银行可持续发展报告中资深决策者的陈述观点，它们分别取自4家中国银行和4家北欧银行。现存的研究指出公司社会责任这一概念以及对其的认知受到文化和社会背景的影响。通过研究中国和北欧不同银行资深决策者在可持续发展报告中的陈述及观点，本论文意在深入理解文化和社会因素是如何在公司中得到，并最终影响公司社会责任的实践和战略。研究结果显示中国传统哲学和社会背景深刻影响中国银行业资深决策者对于可持续发展的陈述和观点，特别是儒家思想，道家思想，和习近平在19大的报告，以及中国第十三个五年规划。而在北欧，可持续发展报告主要受到性别平等和种族平等方面的影响。在银行可持续报告中，中国的资深决策者主要关注“社会平稳和发展”，“经济责任”，和“客户”，而北欧的资深决策者主要关注“经济责任”，“客户”和“环境保护”。

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Dimitriu, Cristian. "Harming the poor: towards a really ecumenical conception of international distributive justice". Pontificia Universidad Católica del Perú - Departamento de Humanidades, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/112942.

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In this paper I compare and critically evaluate Sreenivasan’s and Pogge’s conceptions of global justice. While Sreenivasan holds that all the currently existing theories of global justice agree that wealthy countries should transfer at least a portion of their wealth to the poor, Pogge claims that all the currently existing theories of global justice agree that wealthy countries should stop harming poor ones in the first place. In this paper I shall try to show (i) that Sreenivasan’s proposal, as presented in his articles, is broad enough to be acceptable by some international distributive justice theories, but not all of them, (ii) that Pogge’s proposal is broader than Sreenivasan, in the sense that it aims to gain support from all the different conceptions of international distributive justice, but it depends on the claim that developed countries are currently harming the global poor—a claim that I will try to defend–, and (iii) that Pogge’s and Sreenivasan’s view are compatible. In fact, if Sreenivasan added Pogge’s central claim of his argument to his own proposal, the scope of theories that he could gain support from would be much broader.
En este artículo comparo y evalúo críticamente las concepciones sobre la justicia global de Sreenivasan y Pogge. Mientras Sreenivasan sostiene que todas las teorías sobre la justicia global actualmente existentes concuerdan en que los países ricos deberían transferir al menos una porción de sus riquezas a los pobres, Pogge reclama que todas las teorías sobre la justicia global concuerdan en que los países ricos deberían dejar de dañar a los pobres en primer lugar. En este artículo, trataré de mostrar (i) que la propuesta de Sreenivasan, como es presentada en sus artículos, es lo suficientemente amplia como para ser aceptable para algunas teorías de justicia internacional distributiva, pero no para todas ellas; (ii) que la propuesta de Pogge es más amplia que la de Sreenivasan, en el sentido de que aspira a obtener sustento en todas las diversas concepciones de justicia internacional distributiva,pero depende de la afirmación de que los países desarrollados dañan actualmentea la pobreza global –una afirmación que intentaré defender–; y (iii) que la visión de Pogge y Sreenivasan son compatibles. De hecho, si Sreenivasan asumiera la afirmación central del argumento de Pogge en su propia propuesta, el alcance delas teorías desde las que él podría ganar sustento sería mucho más amplio.

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Bärlund, Johnny. "Numerical Investigation on Spherical Harmonic Synthesis and Analysis". Thesis, KTH, Geodesi och satellitpositionering, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171779.

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In this thesis work the accuracy of the spherical harmonic synthesis and analysis are investigated, by simulated numerical studies.The main idea is to investigate the loss of accuracy, in the geopotential coeffcients, by the following testing method. We start with a synthesis calculation, using the coefficients(EGM2008), to calculate geoid heights on a regular grid. Those geoid heights are then used in an analysis calculation to obtain a new set of coeffcients, which are in turn used to derive a new set of geoid heights. The difference between those two sets of geoid heights will be analyzed to assess the accuracy of the synthesis and analysis calculations.The tests will be conducted with both point-values and area-means in the blocks in the grid. The area-means are constructed in some different ways and will also be compared to the mean value from 10000 point values as separate tests. Numerical results from this investigation show there are significant systematic errors in the geoid heights computed by spherical harmonic synthesis and analysis, sometimes reaching as high as several meters. Those big errors are most common at the polar regions and at the mid-latitude regions.

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Foroughmand, Aarabi Hadrien. "Towards global tempo estimation and rhythm-oriented genre classification based on harmonic characteristics of rhythm". Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS018.

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La détection automatique de la structure rythmique au sein de la musique est l'un des défis du domaine de recherche "Music Information Retrieval". L'avènement de la technologie dédiées aux arts a permis l'émergence de nouvelles tendances musicales généralement décrites par le terme d'"Electronic/Dance Music" (EDM) qui englobe une pléthore de sous-genres. Ce type de musique souvent dédiée à la danse se caractérise par sa structure rythmique. Nous proposons une analyse rythmique de ce qui définit certains genres musicaux dont ceux de l'EDM. Pour ce faire, nous souhaitons réaliser une tâche d'estimation automatique du tempo global et une tâche de classification des genres axée sur le rythme. Le tempo et le genre sont deux aspects entremêlés puisque les genres sont souvent associés à des motifs rythmiques qui sont joués dans des plages de tempo spécifiques. Certains systèmes d'estimation du tempo dit "handcrafted" ont montré leur efficacité en se basant sur l'extraction de caractéristiques liées au rythme. Récemment, avec l'apparition de base de données annotées, les systèmes dit "data-driven" et les approches d'apprentissage profond ont montré des progrès dans l'estimation automatique de ces tâches.Dans cette thèse, nous proposons des méthodes à la croisée des chemins entre les systèmes "handcrafted" et "data-driven". Le développement d'une nouvelle représentation du rythme combiné à un apprentissage profond par réseau de neurone convolutif est à la base de tous nos travaux. Nous présentons en détails notre méthode dites Deep Rhythm dans cette thèse et nous présentons également plusieurs extensions basées sur des intuitions musicales qui nous permettent d'améliorer nos résultats
Automatic detection of the rhythmic structure within music is one of the challenges of the "Music Information Retrieval" research area. The advent of technology dedicated to the arts has allowed the emergence of new musical trends generally described by the term "Electronic/Dance Music" (EDM) which encompasses a plethora of sub-genres. This type of music often dedicated to dance is characterized by its rhythmic structure. We propose a rhythmic analysis of what defines certain musical genres including those of EDM. To do so, we want to perform an automatic global tempo estimation task and a genre classification task based on rhythm. Tempo and genre are two intertwined aspects since genres are often associated with rhythmic patterns that are played in specific tempo ranges. Some so-called "handcrafted" tempo estimation systems have been shown to be effective based on the extraction of rhythm-related characteristics. Recently, with the appearance of annotated databases, so-called "data-driven" systems and deep learning approaches have shown progress in the automatic estimation of these tasks. In this thesis, we propose methods at the crossroads between " handcrafted " and " data-driven " systems. The development of a new representation of rhythm combined with deep learning by convolutional neural network is at the basis of all our work. We present in detail our Deep Rhythm method in this thesis and we also present several extensions based on musical intuitions that allow us to improve our results

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Cardoso, Geraldo Magela. "Uso de um modelo regional de clima-vegetação para estimativa dos componentes da evapotranspiração sob condições climáticas atuais e futuras de aquecimento global". Universidade Federal de Viçosa, 2009. http://locus.ufv.br/handle/123456789/5235.

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Made available in DSpace on 2015-03-26T13:50:03Z (GMT). No. of bitstreams: 1 texto completo.pdf: 2150977 bytes, checksum: 3411fdf85f685253ef23effd25ee9315 (MD5) Previous issue date: 2009-07-24
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
This study objective was to analyze the space distribution of components of the reference evapotranspiration (ETo) in Brazil and afterwards the weather variability by applying the technique of harmonic analysis, given for this was initially an analysis of variance, phase and amplitude for the present time (1980-2000), subsequently made a projection of future time (2080-2100), based on scenario A2 of intergovernmental panel to Climatic changes. The equation used was Penman-Monteith sampled by Food and Agriculture and Organization of the United Nations (FAO) 1998. The simulations were conducted with the clime regional model (MM5), attached to a model of potential vegetation (MVP). The results show that under the actual conditions the model presented good performance of the annual cycle when compared to the ERA-40 and CRU data. The aero dynamical and radioactive terms presented an annual cycle that is dominant in the Amazonian and Brazil's south regions, while in the southeast region the semester cycle has a higher notability. The biggest variations at ETo amplitude were identified in northeastern semiarid and in the Brazil's extreme south. The changes in ETo due to the global warmness were maximum at the Brazil's central region and in the Amazonian region. In future conditions, the annual cycle showed itself dominant in Brazil's greatest part, presenting dry and rainy well defined weathers. Still was observed that under global warmness conditions the variations of aerodynamic term become more important than the variations of the irradiative terms to the total ETo.
O objetivo do presente estudo foi analisar a distribuição espacial dos componentes da evapotranspiração de referência (ETo) no Brasil e posteriormente a variabilidade temporal por meio da técnica da análise harmônica, sendo para isso foi feito inicialmente uma análise de variância, fase e amplitude para o tempo presente (1980-2000) e, posteriormente, feita uma projeção com o tempo futuro (2080-2100), com base no cenário A2 do Painel Intergovernamental para as Mudanças Climáticas. A equação utilizada foi a de Penman-Monteith padronizada pela Food and Agriculture and Organization of the United Nations (FAO) 1998. As simulações foram conduzidas com o modelo regional de clima (MM5), acoplado a um modelo de vegetação potencial (MVP). Os resultados mostram que sob condições atuais o modelo apresentou bom desempenho do ciclo anual quando comparado aos dados do ERA-40 e CRU. Os termos aerodinâmico e radiativo apresentaram um ciclo anual que é dominante na região Amazônica e sul do Brasil, enquanto na região sudeste o ciclo semestral tem maior destaque. As maiores variações na amplitude da ETo foram identificadas no semi-árido nordestino e no extremo sul do Brasil. As mudanças na ETo devido ao aquecimento global foram máximas na região central do Brasil e Amazônica. Em condições futuras, o ciclo anual apresentou-se dominante na maior parte do Brasil, indicando estações secas e chuvosas de forma bem definida. Ainda foi observado que sob condições de aquecimento global as variações do termo aerodinâmico tornam-se mais importantes que as variações do termo radiativo para a ETo total.

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Wei, Lai. "Spectral-based tests for periodicities". Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1201706810.

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Poiret, Aurélien. "Équations de Schrödinger à données aléatoires : construction de solutions globales pour des équations sur-critiques". Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00771354.

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Dans cette thèse, on construit un grand nombre de solutions globales pour de nombreuses équations de Schrödinger sur-critiques. Le principe consiste à rendre la donnée initiale aléatoire, selon les mêmes méthodes que Nicolas Burq, Nikolay Tzvetkov et Laurent Thomann afin de gagner de la dérivabilité.On considère d'abord l'équation de Schrödinger cubique en dimension 3. En partant de variables aléatoires gaussiennes et de la base de L^2(R^3) formée des fonctions d'Hermite tensorielles, on construit des ensembles de solutions globales pour des données initiales qui sont moralement dans L^2(R^3). Les points clefs de la démonstration sont l'existence d'une estimée bilinéaire de type Bourgain pour l'oscillateur harmonique et la transformation de lentille qui permet de se ramener à prouver l'existence locale de solutions à l'équation de Schrödinger avec potentiel harmonique.On étudie ensuite l'effet régularisant pour prouver un théorème analogue où le gain de dérivée vaut 1/2-2/(p-1) où p correspond à la non linéarité de l'équation. Le gain est donc plus faible que précédemment mais la base de fonctions propres quelconques. De plus, la méthode s'appuyant sur des estimées linéaires, on établit le résultat pour des variables aléatoires dont la queue de distribution est à décroissance exponentielle.Enfin, on démontre des estimées multilinéaires en dimension 2 pour une base de fonctions propres quelconques ainsi que des inégalités de types chaos de Wiener pour une classe générale de variables aléatoires. Cela nous permet d'établir le théorème pour l'équation de Schrödinger quintique, avec un gain de dérivée égal à 1/3, dans le même cadre que la partie précédente.

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Šedý, Michal. "Syntéza struktur s elektromagnetickým zádržným pásmem". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218036.

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In microwave frequency band, the planar technology is mainly used to fabricate electronic circuits. Propagation of surface waves belongs to the significant problem of this technology. Surface waves can cause unwanted coupling among particular parts of the structure and can degrade its parameters. The problem can be solved using an electromagnetic band gap structure (EBG). These periodic structures are able to suppress surface waves in different frequency bands. This thesis is focused on the modeling of these structures in the program COMSOL Multiphysics.

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Pedotti, Guy. "Etude sismotectonique du Péloponnèse et réponse sismique d'une vallée sédimentaire en Grèce du Nord". Phd thesis, Grenoble 1, 1988. http://tel.archives-ouvertes.fr/tel-00719640.

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Partie 1 : Etude sismotectonique du Péloponnèse. Durant l'été 1986 nous avons installé un réseau sismologique de 46 stations couvrant l'ensemble du Péloponèse. Sur plus de 1000 séismes, 750 sont localisés à 10 km près et 480 le sont à 5 km près, 100 solutions focales ont été déterminées. La sismicité enregistrée est essentiellement crustale (95%). La croûte inférieure apparait comme une zone sismique à l'ouest et devient sismique à l'est. Les mécanismes au foyer indiquent un champ de contrainte compressiif orienté E-W dans la bordure occidentale. Immédiatement à l'est de cette zone, le régime devient extensif, d'orientation N-S au nord puis NW-SE à E-W dans !e sud et le sud-.ouest du Péloponnèse. La, sismicité intermédiaire définit la géométrie de ia subduction de la plaque Afrique sous le Péloponnèse. Le plongement est orienté NE-SW scion un pendage de 10°, à 200 km des fosses ce pendage s'accentue brusquement (45 ° ). Les mécanismes au foyer montrent une tectonique extensive orientée NE-SW, avec un pendage identique à celui de la plaque plongeante. 2* partie: Réponse sismique d'une vallée sédimentaire. Durant deux semaines , en mai 1985, cinq stations sismologiques ont été installées à travers une vallée située à 50 km de Thessalonique ( Grèce) . Les stations étaient placées sur les sédiments et sur les bords rocheux de la vallée. A partir de séismes locaux et régionaux, nous avons calculé les rapports des spectres de Fourier obtenus aux différents sites. Pour les sites sédimentaires, les rapports montrent des .amplifications maximales de 8, pour un site rocheux elles atteignent 6. Les amplifications observées sont maximales lors de séismes locaux.Nous interprétons ces effets en fonction du contexte géologique local.

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Hsu, Wei-Hsiang, i 徐偉翔. "A Population-Based Evolutionary Algorithm Based on Yin-Yang Harmony for Global Optimization Problems". Thesis, 2014. http://ndltd.ncl.edu.tw/handle/2d96u8.

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碩士
國立臺灣海洋大學
系統工程暨造船學系
102
In this research, a population-based evolutionary algorithm is developed for global optimization problems including several benchmark problems and engineering optimizations. The algorithm is established based on the frame of the particle swarm optimization(PSO), in which four search strategies are adopted, such as the orthogonal arrays(OA) for creating the initial population, the principal component analysis(PCA) for changing the design variables, the stretching technique(ST) for changing the objective function, the cooperative grid method(CGM) for generating several individuals, called disturbanced particle swarm, which replace the particle in the population swarm with not better ones. And then, the above-mentioned four search strategies and the particle swarm optimization are used to develop the two search schemes including intensification and repulsion mechanisms, and in this paper , the population based evolutionary algorithm based on chinese Yin-Yang harmony is proposed that is also named as Yin-Yang evolutionary algorithm(YYEA). To verify the proposed algorithm(YYEA), there are eleven uni-and multi-modal benchmark functions with interactive and non-interactive variables having three different dimensions, such as 30, 50 and 100. The experimental results show that for the benchmark functions with 30 and 50 dimensions, the global optimal solutions can be achieved by YYEA; for 100 dimensional functions F1~F6, F8, F9, and F11 the proposed algorithm(YYEA) can also solve their global optimal solutions; for functions F7 and F10, the YYEA can find the solutions, not their global optimum, better than those by the classical PSO . Finally, three engineering optimization problems are solved by the YYEA, and comparisons of the results in referred literatures are done. The compared results show that for the optimization design of engineering compound gear train, the YYEA’s solution is better than those in literatures [40], [43] and [44], and same as these in literature [45]; for the optimization design of engineering pressure vessel, the result with YYEA is better than these in literature [41], [46], [47], [48], and [49]; for the optimization of the sound pressure and its weight parameters for noise simulation of tread pattern of the tire with the image recognition technique, the optimal parameters solved by the YYEA are better than those with the classical PSO.

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Liu, Xiang-Bang, i 劉向邦. "Hybrid Global Search Algorithm Based on Harmony Search for Concave Cost Minimum Cost Network Flow Problems". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/85dzyp.

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碩士
國立中央大學
土木工程研究所
96
Traditionally, the minimum cost transshipment problems were simplified as linear cost problems in order to reduce problem complexity. In practice, the unit cost for transporting freight usually decreases as the amount of freight increases. Hence, in actual operations the transportation cost function can usually be formulated as a concave cost function. Great efforts have been devoted to the development of solution algorithms. However, they were confined to specical transportation networks. Besides, their methods were focused on local search algorithms or traditional heuristics. Recently, researchers began to use advanced neighborhood search algorithms to solve concave cost bi-partite transportation network problems to enlarge search area and find near-optimal solutions. This type of research, however, neglected flow transfers in transportation networks. Recently, there has been research adopting the genetic algorithm (GA), the ant colony system algorithm (ACS) and the particle swarm optimization algorithm (PSO) for solving concave cost network problems, and obtaining better solutions than some neighborhood search algorithms do. The harmony search (HS), a global search algorithm, has led to good results in many applications. In some applications, HS was even more effective than GA. Since there has not yet been any research applying HS to minimum concave cost network flow problems, we employ HS, coupled with the techniques of PSO, ACS and TA, to develop one global search algorithms for efficiently solving minimum concave cost network flow problems. In the solution method, we take the harmony search as the foundation, use a global search which is harmony memory consideration and a local search which is Pitch Adjusting to compose the new feasible solution, we also join the velocity update rules in PSO, the pheromone update rules in ACS, TA and the concave cost initial solution algorithm, we develop a analogous harmony search which is fitting the minimum cost transshipment problems with concave costs. Finally, to evaluate our algorithms we designed a network generator to create a sufficient number of problem instances. The C++ computer language was used to code all the necessary programs and the test was performed on personal computers. To evaluate our algorithm, we also tested the recently designed TA, GDA, GA, ACS and PSO that solve minimum concave cost network flow problems. The results show that the developed algorithms performed well in the tests.

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15

WANG, YI-CHING, i 王怡晴. "Apply Intelligent Global Harmony Search based Artificial Neural Network in Predicting the Price Fluctuation in Steel Industry of Taiwan". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/se3597.

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碩士
國立臺北科技大學
工業工程與管理系
107
Steel industry is significant to economic development. It owns high position in our economic construction and also boosts more relative job opportunity. In recent years, the international steel prices have been uncertain due to fluctuation of market demand. This research adopts Intelligent Global Harmony Search (IGHS) and Harmony Search (HS) algorithms to create a prediction model for the steel prices, combining with neuron network technique and data from January 2006 to October 2018 of H-Beam Products and Reinforcement. This research utilized the K-means of Weka 3.6 to divide the up and down prices into six intervals and using IGHS-ANN and HS-ANN models to predict the price falling into which interval. The result shows the IGHS-ANN owns higher accuracy by comparing with IGHS-ANN. The performance of these two steel types is also quite different. H-beam has much higher prediction accuracy than that of steel. And, the short term prediction gets better prediction result than long term prediction. In summary, the proposed model can be a good tool for predicting Taiwan steel price.

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Liu, Da-Wei, i 劉大瑋. "Dynamic Analysis of Rotating Shaft under a Moving Harmonic Force with General Boundary Condition Using Global Assumed Mode Method". Thesis, 2002. http://ndltd.ncl.edu.tw/handle/51393900543318582797.

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碩士
國立中正大學
機械系
90
ABSTRACT High-speed technique has been an emphasis on machine tools since many years. To raise the efficiency of manufacture, it should be paid more attention to the research of high-peed feed drive system. Generally, the dynamic behaviors of a feed drive system can be modeled as a rotating shaft subjected to a moving force that is assumed as a skew force under high-speed operation. Thus, the Global Assumed Mode Method (GAMM) is used to investigate the dynamic behavior of a rotating shaft under a moving force with constant and non-constant skew angle in this study for more efficient purpose. The system equations of motion in connection with three general geometric boundaries, i.e. simply-supported, clamped-clamped and clamped-free, are derived by Lagragian approach combined with GAMM in this study. The system natural frequencies are obtained by solving the system eigenvalue problem. Furthermore, the transient response of the system due to a moving force with constant and non-constant skew angle are evaluated by applying Runge-Kutta method. The numerical results of different boundary conditions, it is shown that the natural frequency is significantly affected by the skew angle of skew force. The large skew angle is considered, the natural frequency will decrease. In addition, it is also indicated that the lateral deflections would be the largest on the clamped-clamped beam. The axial deflections would be the largest on the simply-supported beam. The oscillations of axial response become violent as the frequency of the harmonic force increase of each boundary condition. And the influence of the lateral deflection is insignificant of each boundary condition.

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Williams, Michael Bradford. "Analysis of geometric flows, with applications to optimal homogeneous geometries". Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-2820.

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This dissertation considers several problems related to Ricci flow, including the existence and behavior of solutions. The first goal is to obtain explicit, coordinate-based descriptions of Ricci flow solutions--especially those corresponding to Ricci solitons--on two classes of nilpotent Lie groups. On the odd-dimensional classical Heisenberg groups, we determine the asymptotics of Ricci flow starting at any metric, and use Lott's blowdown method to demonstrate convergence to soliton metrics. On the groups of real unitriangular matrices, which are more complicated, we describe the solitons and corresponding solutions using a suitable ansatz. Next, we consider solsolitons involving the nilsolitons in the Heisenberg case above. This uses work of Lauret, which characterizes solsolitons as certain extensions of nilsolitons, and work of Will, which demonstrates that the space of solsolitons extensions of a given nilsoliton is parametrized by the quotient of a Grassmannian by a finite group. We determine these spaces of solsoliton extensions of Heisenberg nilsolitons, and we also explicitly describe many-parameter families of these solsolitons in dimensions greater than three. Finally, we explore Ricci flow coupled with harmonic map flow, both as it arises naturally in certain bundle constructions related to Ricci flow and as a geometric flow in its own right. In the first case, we generalize a theorem of Knopf that demonstrates convergence and stability of certain locally R[superscript N]-invariant Ricci flow solutions. In the second case, we prove a version of Hamilton's compactness theorem for the coupled flow, and then generalize it to the category of etale Riemannian groupoids. We also provide a detailed example of solutions to the flow on the three-dimensional Heisenberg group.
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