۷۴) در دانشگاه (بخش ۲) – Deutschtrainer من تحصیل‌ام در رشته حقوق را تمام کردم. Doctoral Thesis, Zurich, ETH Zurich, 2017. This also applies in the aftermath of natural hazard events. A Method for Determining Optimal Intervention Programs for Interrelated Infrastructure Networks, Consideration of Uncertain Future Demand and Decision Flexibility in the Determination of Intervention Programs for Buildings. An example is provided and the potential is discussed for using this curve for the planning and budgeting of refurbishment and energy efficiency measures, and as a tool to explain the relation between costs and benefits of measures enhancing building energy efficiency, including the production of renewable energy, to investors. Taking into consideration this flexibility of management to decide which intervention program to follow is believed to be a cornerstone of any method to be used to determine optimal intervention programs in management systems where there is uncertainty with respect to future demand. Hiermit versichere ich, die vorliegende Doktorarbeit unter der Betreuung von Prof. Dr. rer. of Mechanical and Process Eng. Municipal Solid Waste Management - Ingenieurwissenschaften - Doktorarbeit 2011 - ebook 31,99 € - Hausarbeiten.de Mechanical and Process Engineering. Part II consists of Chapters 3-6. Auflage, 1990, ISBN 3-540-52381-2. Given the fluctuating demand for concrete, an approach that uses digitized information within a short-term planning window is presented to improve the ordering of concrete by minimizing waste and cost. The expected net benefits and optimal intervention program determined with the method with consideration of decision flexibility are closer to reality, and thus enable better budget planning. R. Radespiel Tag der Einreichung: 10.8.2009 Instead, uncertain changes in demand can make it desirable to find flexible solutions that consider the possibility to postpone decisions on the actual intervention program to implement to a later moment when more information will be available. This thesis aims to fulfil this need by providing specific examples of how digitalization dissolves data silos within utilities and between them and enables the adoption of efficient algorithms to tangibly improve asset management of water distribution networks. The proposed approach improves supply chain efficiency, transparency, agility, sustainability, and accuracy, paving the way for a better future of construction projects. Von der Fakultät für Maschinenbau, Elektrotechnik und Wirtschaftsingenieurwesen der Brandenburgischen Technischen Universität Cottbus - Senftenberg zur Erlangung des akademischen Grades eines Doktor-Ingenieurs genehmigte Dissertation vorgelegt von Master of Science Maxim Bonkarev Geboren am 6. ETH Zürich Daniel co-founded the multi-awarded company senseering GmbH.Senseering is a young startup that accompanies companies on their way to digital transformation. Infrastructure managers plan and execute interventions to guarantee the operational state of their infrastructures under various circumstances. Saša Bakić aus Darmstadt Berichterstatter: Prof. Dr.-Ing. Either within or among projects, the implementation of the two-step approach in both cases proves the benefits of balancing the daily material supply and demand according to a continuously updated schedule. The used models and methods often do not consider the uncertain future demands on the buildings. These include the use of cost-benefit analysis in quantitatively comparing interventions on different object types, the influence of economies of scale on pipe replacement estimates, and the simplifications used to model large, real-world networks. Environmental Systems Science. Die vorliegende Doktorarbeit befasst sich mit der Entwicklung und Anwen-dung eines neuartigen, instationären Reynolds-gemittelten Navier-Stokes (URANS) Modells, welches als Basis das Skalen-adaptive Konzept (SAS), eingeführt von Menter und Egorov [35], verwendet. Kress, Stephan Josef Peter Maschinenbau und Verfahrenstechnik . Kries, Hajo Chemie und Angewandte Biowissenschaften . The increasing demands of stakeholders for decision transparency, resource efficiency and sustainability will continue to serve as catalysts for the development and professionalization of infrastructure asset management. Despite the critical importance of this infrastructure, water utilities are facing major financial challenges worldwide and are raising water fees in response. The most substantial contribution of this thesis is found in Part II on optimal intervention planning. Stress tests to determine the state of resilience of infrastructure systems to natural hazard events, The Consideration of Energy Efficiency in the Strategic Planning of Refurbishment in Building Portfolios. Lean management principles and Industry 4.0 technologies combined with various optimization algorithms have dominated manufacturing supply chains in the past decade and have the potential to enhance stakeholder collaboration and workflow efficiency. Deutschtrainer – 74 At university II ... (PDF) Printable vocabulary list. The willingness of stakeholders to bear this growing financial burden is low. Building managers want to determine what they should do with their buildings at present to maximize their net-benefit in the long term. This part lays the knowledge foundation for the second and third parts of the dissertation. construction, operation, maintenance, expansion, and demolition). in Atlanta, USA Berichterstatter: Prof. Dr.-Ing. Bürkli, Anja Umweltsystemwissenschaften . The decision flexibility about the interventions to be executed over the investigated time period is the focus of this thesis. Darmstadt, den … As a result, projects often face schedule delays and cost overruns. Although the assumption of non-changing demands is convenient from a mathematical modelling point of view, it is rarely true in the real world. Doctoral Thesis, Zurich, ETH Zurich, 2018. Kaczmarczyk, Andreas Biologie . Supply chain management has been favored by researchers and construction practitioners over traditional material management practices that focus on a single logistic perspective. Danksagung Ich möchte mich hiermit sehr herzlich bei Herrn O. Univ.-Prof. Mag. N. Damaschke 2. P. Steinmann Korreferenten: Prof. Dr.-Ing. This process is a systematic approach to ensure that infrastructure continues to provide an adequate level of service during all lifecycle phases (i.e. The usefulness of the CPI curve is demonstrated through two case studies. Several aspects of the novel methodology are explored in additional chapters. Based on the given classification of influence factors, changes in demand, and effects, suitable methods for the modelling of changes in demands in connection with the changes of connected influence factors should be identified and tested for application. In pursuit of this, the dissertation aims to \textit{develop a systematic approach and the corresponding techniques to improve the coordination of material and information flows in construction projects, considering the integration of lean workflows, digital technologies, and optimization algorithms, with a special focus on stakeholders’ collaborative decision-making processes}. Mechanical and Process Engineering An investigation of methodologies to determine the most sustainable bridge work programs. Data silos further limit the capabilities of construction stakeholders to collaborate and inhibit the reliability of their decisions on material supplies and demands. Mechanical and Process Engineering. The main themes of the three parts are pipe failure prediction with artificial neural networks (ANNs), optimal intervention planning for water distribution networks, and optimizing the execution of operational maintenance programs. im Maschinenbau Von der Fakultät für Maschinenwesen der Rheinisch-Westfälischen Technischen Hochschule Aachen zur Erlangung des akademischen Grades eines Doktors der Ingenieurwissenschaften genehmigte Dissertation vorgelegt von Diplom-Ingenieur Jens Schröder aus Wuppertal S. Grundmann nur mit den angegebenen Hilfsmitteln selbständig angefertigt zu haben. The scope of implementing the approach is expanded from a single project to a group of projects in a contractor’s or owner’s broader portfolio. Darmstadt, den 02.05.2009 iv h�bbd```b``�"��I�r,n &��H���"�_��|�X�e�٩`RDN�$CT@�dU�� 2� l�\�lt���7�%A�@UT �30��` ��R It is particularly useful for the management of engineer-to-order components considering dynamic site progress. 102 0 obj <>stream In such a situation, the decision maker can make a choice of which intervention program to follow, either with or without consideration of decision flexibility. Sarntal, Hochschule Mittweida, Fakultät Maschinenbau, Diplomarbeit, 2013 Referat: Die vorliegende Arbeit befasst sich mit dem Lösungsweg der konstruktiven Aufgabe eine Biegemaschine für Baustahlmatten zu entwickeln, welche in eine automatische Anlage implementiert werden kann. Ortner, Franziska Marei Maschinenbau und Verfahrenstechnik . D’Acunto, Pierluigi Architektur . The proposed approach is demonstrated to be useful to provide optimal order quantities of concrete with minimal costs within a five-day planning window. The World Economic Forum is an independent international organization committed to improving the state of the world by engaging business, political, academic and other leaders of society to shape global, regional and industry agendas. Rouven Mohr aus Saarbr uc ken Hauptreferent: Prof. Dr.-Ing. C. Tropea und Dr.-Ing. In this paper, a Cost-Performance-Indicator (CPI) curve and the respective CPI method are proposed to indicate additional costs and benefits of energy efficiency measures at a strategic level, and evidence is given that corroborates the hypothesis that energy efficiency measures follow the law of increasing relative costs. ‒ .مدرک عطق ار یزاسنیشام هتشر رد لیصحت نم ... Ich schreibe meine Doktorarbeit. bridges and road sections), the functional interrelationships of the affected objects, the resulting probable consequences, duration of network disruption, and the restoration of the network. Chemistry and Applied Biosciences. Part III consists of Chapter 7. Results from both reviews suggest that a holistic integration of the supply chains and stakeholders’ collaborative decision making through digitalization (e.g., integrated BIM-IoT technologies) together with and lean workflows are essential to improve supply chain coordination but are missing from current practices. Biology. Nagel, Joseph Benjamin Bau, Umwelt und Geomatik . Vom Fachbereich Maschinenbau an der Technischen Universität Darmstadt zur Erlangung des Grades eines Doktor-Ingenieurs (Dr.-Ing.) As the resources available to managers to protect their infrastructures are limited, it is essential for them to be aware of the probable consequences (i.e., risk) in order to set priorities and be resource-efficient. November 2018 von Franziska Pfeiffer. Over the last several decades, digitalization has permeated all activities related to infrastructure asset management and led to tangible benefits such as the improved design, efficient operation and timely maintenance of water distribution networks. Veröffentlicht am 1. Physics . The third part of the dissertation moves the focus to the management of bulk commodity. Based on this process a simulation engine is presented which is constructed as a computational platform to estimate risk by supporting the combination of models from different disciplines. The untapped potential of digitalization represents a clear path forward to achieving these ambitious goals. The system uses a client-server architecture, though it can be easily reconfigured to a cloud-based system architecture. Novkovic, Mario Biologie . Hiermit versichere ich, die vorliegende Doktorarbeit unter der Betreuung von Prof. Dr.-Ing. To optimize the allocation of materials among multiple projects, a transshipment method is developed to enable the lateral sharing of materials in a supply chain network using the same two-step approach; a streamlined coordination process comprising the extraction of digital information and the decision-making on material allocation. This design flexibility can also be evaluated with the presented method for the evaluation of intervention programs with consideration of decision flexibility. More precisely, it provides a novel method for integrating lean principles, digital technologies, and optimization algorithms for construction supply chain practices. Doreen Krüger Veränderungsprozesse in der Arbeits- und Personalpolitik vor dem Hintergrund der demographischen Entwicklung: Handlungsansätze This small difference is mainly due to the reduced impact that the uncertainty considered in the examples have on the expected net benefits of the intervention program, but it is a result that is only possible to obtain through an adequate evaluation method as presented in this thesis. In order to support infrastructure managers in their risk assessments, this work aims to develop a methodology and corresponding techniques to understand and quantify the risk of complex infrastructure systems affected by natural hazards, considering spatial and temporal aspects. S. Grundmann nur mit den angegebenen Hilfsmitteln selbständig angefertigt zu haben. Health Sciences and Technology. Good management of material flow processes requires efficient coordination of material and associated information flows, which leads to reduced misalignment in deliveries. Doctoral Thesis, Zurich, ETH Zurich, 2020. Secondly, a methodology is presented for determining optimal short-term intervention programs on large, real-world water distribution networks that considers all network components requiring preventive intervention planning. [1] Rubiat Mustak, Md.Habib Ullah Khan, Md.Mahbubur Rahman, Mohammad Mashud,“ Investigation of Slipstreaming Effect between a Semi trailer-truck and a Sedan Car ”, International Journal of Scientific & Engineering Research(IJSER), Volume 8, Issue 2,Pages PP.676-678,February-2017. Technische Hochschule Zürich. C. Tropea Mitberichterstatter: Prof. Dr.-Ing. �\8:`�:$ ���L������D�b:�"���Ŗ����A�20��1�F�1�C�r20��t200o����Ti e0 �p _ Darmstadt, den 1. The infrastructure asset management process is a well-suited tool for providing such argumentation. To give better insights into the resilience of the infrastructure system to natural hazards and to help the infrastructure managers to make better decisions in such situations, a restoration model is formulated to determine optimal recovery responses in the aftermath of such events. To keep construction projects on time and on budget, novel methodologies are needed for the management of material flow processes. In this thesis, a Real Options Method for the evaluation of intervention programs with consideration of decision flexibility under uncertainty in changes in demand is presented and applied to a simple example of a fictive office building and a real world example, a clinic of a Swiss university hospital. Präsentation der Themen zum Download (PDF, 10.2 MB), Eidgenössische Biology. Finally, a study is provided exploring the influence of maintenance density and routing algorithm on the efficiency gains that can be achieved by integrating municipal maintenance tasks such as hydrant and valve inspections and meter replacements into combined work packages. In his former life he also co-founded a web services company. As a result, the materials can be managed with minimal waste and costs. This method is based on Real Option Analysis and Decision Tree Analysis. The other review summarizes useful enablers to facilitate the coordination activities and to link different construction supply chain stages (i.e., design-to-production, production-to-logistics, and production-to-site-assembly). genehmigte D i s s e r t a t i o n vorgelegt von Dipl.-Phys. Chen, Tian Maschinenbau und Verfahrenstechnik . This dissertation contributes to the field of construction management of material flow processes by providing a systematic approach and corresponding techniques to address the challenges in construction supply chain processes. The use of the method for the determination and evaluation of intervention programs with consideration of decision flexibility shows that the method allows for appropriate consideration of decision flexibility and, therefore, can lead to an increased benefit for building managers. In conditions characterized by high uncertainty, interventions programs developed with consideration of decision flexibility enable building manager to adapt the system to new information and thus avoid losses or even seize opportunities. Bösch, Fabian Maschinenbau und Verfahrenstechnik . Various methods that facilitate construction supply chain coordination are identified through different review processes. The supply chain processes in construction projects are normally dynamic in nature and are subjected to open-air environmental conditions. The system includes design-change, schedule-change, production, and transport functional modules. The performance of the lean workflow is compared with that of a traditional workflow using discrete-event simulations. 88 0 obj <>/Filter/FlateDecode/ID[<60C7F4657C21AB44BF61401B37CCD697><1172850B494EE04696C16FA09E88A2BC>]/Index[66 37]/Info 65 0 R/Length 110/Prev 162370/Root 67 0 R/Size 103/Type/XRef/W[1 3 1]>>stream Doctoral Thesis, Zurich, ETH Zurich, 2014. The application of the method on this example showed that the Real Options Method required more effort than the Traditional Method without the consideration of decision flexibility before and during the evaluation for the definition of the flexible decision making, the definition of the consequences of the decision making at these decision points and values over the investigated time period, and the calculation of the probabilities of execution for each possible time and value where a decision of execution is beneficial. Bracher, Annina Informationstechnologie und Elektrotechnik . A methodology to make accurate preliminary estimates of construction material quantities for construction projects. Although supply chain management helps stakeholders complete construction projects, the problems associated with material flow processes, such as material delays, rework, and incorrect deliveries remain frequent due to a lack of efficient supply chain integration and coordination. Michael Schäfer nur mit den angegebenen Hilfsmitteln selbständig angefertigt zu haben. The use of the methodology for the identification and evaluation of intervention projects on the real world example shows that it can be applied to a real world situation and can deliver meaningful results. To accommodate the expansion of the approach to varied material demands among projects, a network model is required to simulate the material and information flows from one project to another. h�b```�Y�,B �����������X���m��� Information Technology and Electrical Engineering. Mechanical and Process Engineering. Leibacher, Ivo Matthias Maschinenbau und Verfahrenstechnik . Michael Suppa geboren am 13.01.1976 in Hannover 2008 Dissertation Beispiele – Medizin, Jura und mehr. Uncertain changes in demand make it undesirable to attempt to evaluate intervention programs now and then determine exactly which one to follow over the remaining planning horizon. Dafur werden zun achst mehrere Extremf alle modelliert um … Ich habe mein Maschinenbau-Studium abgebrochen. %%EOF This work contributes to the field of risk assessment and its application to complex infrastructure systems, by providing a methodology and corresponding techniques to understand and quantify the risk of complex infrastructure systems, affected by natural hazards, considering spatial and temporal aspects. Hiermit versichere ich, die vorliegende Doktorarbeit unter der Betreuung von Prof. Dr.-Ing. Second, a complex network approach is used to investigate traffic flow dynamics on road networks, which provides reasonable estimates for traffic flow changes and significantly reduces the computing time of classical simulation models. They play a fundamental role in the use and distribution of spatial services, such as transportation and communication. Incorporated as a not-for-profit foundation in 1971, and headquartered in Geneva, Switzerland, the Forum is tied to no political, partisan or national interests. November 2020. As a further aspect, the demand for multifunctional materials is increasing. It strongly relies on stakeholder knowledge and requires good and extens-ive stakeholder communication throughout the complete process. Mitberichterstatter: Prof. Dr.-Ing. The Real Options Method for the evaluation of intervention programs with consideration of decision flexibility and the methodology for the identification and evaluation of intervention projects with consideration of decision and building flexibility are applied by analysing the situation, building adequate models of the uncertain key parameters, establishing the static and dynamic evaluation models, identifying possible intervention projects, and evaluating these intervention projects with the method for the evaluation of intervention programs with consideration of decision flexibility. Präsentation der Themen zum Download (PDF, 10.2 MB), A systematic approach to enabling digital supply chain coordination in construction projects. The second part of the dissertation explores the combination of lean principles and digital technologies; namely, lean workflows with integrated management systems. determining an intervention program. These models can be used to support the risk assessment of complex infrastructure systems in terms of data requirements and computing power, i.e. This is illustrated in the material flow processes for the erection of an office building with prefabricated columns. Peter Stephan nur mit den angegebenen Hilfsmitteln selbständig angefertigt zu haben. geb. Part I consists of Chapter 2. ... Ich schreibe meine Doktorarbeit. To overcome the challenges and limitations, prevailing principles and methods in manufacturing industry are required to address the needs of construction supply chains. Vorwort Die vorliegende Dissertation entstand während meiner Tätigkeit als wissenschaftlicher Mitar-beiter am Institut für Werkzeugmaschinen und Betriebswissenschaften (iwb) der Technischen Universität München (TUM) und an der Projektgruppe für Ressourceneffiziente mechatroni- The ramifications of the results from the application of both the method and the methodology are analysed. Diese Doktorarbeit befasst sich mit der Analyse des Wassermanagements in ADMFCs mit einem Membranelektrolyten, um m ogliche Grenzen sowie die An-forderungen an einen stabilen Betrieb zu identi zieren. vom Fachbereich Maschinenbau und Verfahrenstechnik der Technischen Universit at Kaiserslautern zur Verleihung des akademischen Grades Doktor-Ingenieur (Dr.-Ing.) Concrete examples are needed to nudge infrastructure managers towards further embracing digitalization in all aspects of the infrastructure asset management process. Ich habe mein Maschinenbau-Studium abgebrochen. This part explores the combination of lean principles, digital technologies, and optimization algorithms to improve stakeholders’ decision-making processes in the coordination of material flows. Without clear and convincing argumentation, future water fee hikes will become increasingly difficult to obtain. Future research should also consider a deeper analysis of the probabilistic models used for the evaluation of intervention programs, which were in this thesis based on simplifications. endstream endobj 67 0 obj <. Krinner, Sebastian Physik . The capability of the system to improve the coordination of changes over an engineer-to-order material flow process simulation of the office building project is demonstrated to be superior than that of the traditional management framework. Aktualisiert am 17. A Lorentz force flowmeter is an electromagnetic Flowmeter Mechanical and Process Engineering. Nobs, Samuel Philip Biologie . It can be assumed that many of the intervention programs constructed for a complete building are determined without the consideration of decision flexibility, resulting in inflexible intervention programs. The lean workflow is designed to link digital information on material demands with look-ahead plans. The lean workflow advances the traditional workflow as it allows project participants to combine detailed look-ahead plans with BIM and RFID technologies to better manage material flow processes. This adds considerable uncertainties to the management of material flows from the planning phase to the installation phase, in contrast to the manufacturing processes that happen in a closed and consistent work environment. This decision making process is supported through the modelling of deterioration and the determination of the optimal intervention program. The institutional repository TUprints offers all members of TU Darmstadt the opportunity to publish scientific research papers as primary or secondary electronic publication. Müller, Jochen Maschinenbau und Verfahrenstechnik . Maschinenbau und Verfahrenstechnik / Dep. To embed the lean workflow in a digital platform, an integrated management system is developed that focuses on the communication of design-change and schedule-change information. endstream endobj startxref C. Tropea und Dr.-Ing. Landig, Renata Eva Klementine Physik . This requires determining the intervention to be executed immediately and estimating the ones that might be executed in the future, i.e. Zuverlässige numerische Simulationen von solchen Mehrphasen- und Mehrskalen-Prozessen erfordern eine fundierte Modellierung der Chemistry and Applied Biosciences. Krall, Nikolaus Chemie und Angewandte Biowissenschaften . Physics Doktorarbeit vorgestellte „ITMS” werden neue Definitionen für Kunden, Organisatio-nen und Produkte entwickelt, technische Elemente präsentiert und es wird darge-stellt, wie vorhandene Lücken in den Qualitäts-, Umwelt- und Arbeitsschutzanforde-rungen gefüllt werden können. Ziel der Diplomarbeit ist es, alle theoretischen und praktischen In doing so, it not only extends the state-of-the-art research in this field but also helps to provide decision support for infrastructure managers. 0 Considerable simplifications regarding the selection of key parameters and models must be made throughout the process, to keep the complexity at a manageable level, though the methodology can be adapted to take in the level of complexity that is required for different projects. Darmstadt, den 01.11.2012. November 2011, While the implementation of the risk assessment process in the first part is mainly based on computational models, the second part focuses on the development of innovative mathematical models from the field of network sciences. One review is conducted to develop an objective and data-driven assessment of the use of automation and digital technologies to provide a better understanding of their potential benefits and limitations. computational models can be substituted if only limited data is available, or a decrease in the computational effort is required. The first part of this work focuses on the development of a risk assessment process for infrastructure systems affected by natural hazards using computational models to simulate different hazard scenarios and estimate the associated consequences. Architecture. To identify eligible intervention projects where the consideration of decision flexibility is relevant, a methodology for the identification and evaluation of intervention projects with consideration of decision and building flexibility is presented and applied to the real world example. The first part of the dissertation focuses on the comprehensive review of contemporary supply chain management in construction projects. More precisely, this work provides a novel risk assessment process for infrastructure managers, designed to estimate the spatio-temporal risk of complex infrastructure systems due to the occurrence of time-varying multi-hazard events. Exploiting Digitalization to Determine Optimal Intervention Programs for Water Distribution Networks, Towards integrating risk in railway asset management, Risk Assessments of Complex Infrastructure Systems Considering Spatial and Temporal Aspects. Especially due to the complexity and interdependence of these systems, localised failures can cascade dramatically, leading to widespread, unforeseen and often disproportionate disruptions compared to the actual physical damage.
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