Damage analysis in asphalt concrete mixtures based on parameter relationships

Asphalt pavements experience damage due to traffic loading under various environmental conditions. Damage can be caused by viscopl microcracks, fracture due to fatigue cracking, or fracture due to thermal cracking. Asphalt pavements have the capability to remedi s damage depending on binder surface and rheological properties, filler surface properties, and length of rest periods. Asphalt mastic (asphalt and fine aggregates) properties play an important role in controlling damage and healing. This dissertation development of a comprehensive methodology to characterize damage and healing in asphalt mastics and mixtures. The methodology reli ctive imaging techniques (X-ray CT), principles of continuum damage mechanics, and principles of micromechanics. The X-ray CT yield meter that quantifies the percentage of cracks and air voids in a specimen. The continuum damage model parameters are derived from p between applied stress and pseudo strain. The micromechanics model relates the damaged mastic modulus to a reference undamaged mo ationship is a function of internal structure properties (void size, film thickness, and percentage of voids), binder modulus, aggr and bond energy between binder and aggregates. The internal structure parameters are all obtained using X-ray CT and correlated. The developed methodology was used to characterize damage in asphalt mastic and mixture specimens tested using the Dynamic Mechanic A) and dynamic creep test. The damage parameter measured using X-ray CT correlated very well with the predictions of the continuum ics models. All damage parameters were able to reflect the accumulation of damage under cyclic loading and were also able to captur of moisture conditioning on damage. Although this dissertation focused on fatigue cracking at room temperatures, the methodology d used to assess damage due to different mechanisms such as permanent deformation and low temperature cracking

Damage analysis in asphalt concrete mixtures based on parameter relationships

Asphalt pavements experience damage due to traffic loading under various environmental conditions. Damage can be caused by viscopl microcracks, fracture due to fatigue cracking, or fracture due to thermal cracking. Asphalt pavements have the capability to remedi s damage depending on binder surface and rheological properties, filler surface properties, and length of rest periods. Asphalt mastic (asphalt and fine aggregates) properties play an important role in controlling damage and healing. This dissertation development of a comprehensive methodology to characterize damage and healing in asphalt mastics and mixtures. The methodology reli ctive imaging techniques (X-ray CT), principles of continuum damage mechanics, and principles of micromechanics. The X-ray CT yield meter that quantifies the percentage of cracks and air voids in a specimen. The continuum damage model parameters are derived from p between applied stress and pseudo strain. The micromechanics model relates the damaged mastic modulus to a reference undamaged mo ationship is a function of internal structure properties (void size, film thickness, and percentage of voids), binder modulus, aggr and bond energy between binder and aggregates. The internal structure parameters are all obtained using X-ray CT and correlated. The developed methodology was used to characterize damage in asphalt mastic and mixture specimens tested using the Dynamic Mechanic A) and dynamic creep test. The damage parameter measured using X-ray CT correlated very well with the predictions of the continuum ics models. All damage parameters were able to reflect the accumulation of damage under cyclic loading and were also able to captur of moisture conditioning on damage. Although this dissertation focused on fatigue cracking at room temperatures, the methodology d used to assess damage due to different mechanisms such as permanent deformation and low temperature cracking

A Framework for Integration of Knowledge Management and Business Process Management

Recently, several attempts have been made to introduce the process concept to knowledge management (KM) or the knowledge concept to business process management (BPM) in order to combine the advantages of the two approaches. However, clear description about their interrelationship or a comprehensive framework to combine them has not been provided. This paper explores how KM and BPM can complement each other and proposes a framework to integrate the two paradigms. The concept of process knowledge proposed by this paper focuses on the importance of business processes as knowledge, which is overlooked by existing KM or BPM research efforts. The paper proposes a framework that combines and extends the functionalities of existing knowledge management systems (KMSs) and business process management systems (BPMSs) by identifying the functionalities required to manage process knowledge from the lifecycle perspective of both knowledge management and business process management. A prototype system is also presented to demonstrate the feasibility of the proposed framework.clos

AN INTEGRATED FRAMEWORK FOR PROCESS KNOWLEDGE MANAGEMENT

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Integrated Process Management: New Paradigm for Business Process Management

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An integration architecture for knowledge management systems and business process management systems

Recently, interests in the notion of process-oriented knowledge management (PKM) from academia and industry have been significantly increased. Comprehensive research and development requirements along with a cogent framework, however, have not been proposed for integrating knowledge management (KM) and business process management (BPM), which were proposed independently. Based on a comprehensive framework that reflects lifecycle requirements of both KM and BPM, this paper proposes an architecture for integrating knowledge management systems (KMSs) and business process management systems (BPMSs) to combine the advantages of the two paradigms. The paper first defines the concept of process knowledge and classifies it into three types. Then, it suggests how the functionalities of existing KMSs and BPMSs must be extended to support the three types of process knowledge while satisfying the lifecycle requirements of both knowledge and business processes. The architecture, which is comprehensive since it is derived from the extended requirements from the lifecycle perspective, will provide a basis for research and development of process-oriented knowledge management systems. A prototype system is presented to demonstrate the feasibility of the proposed architecture.close286

A BUSINESS PROCESS SIMULATION FRAMEWORK INCORPORATING THE EFFECTS OF ORGANIZATIONAL STRUCTURE

Organizations constantly change their business processes and/or organizational structure to innovate and adapt to the rapidly changing environment. Business process simulation is one of the most popular methodologies for more effectively predicting the effects of process and organizational redesign. Most existing approaches, however, consider only business processes and not organizational structures that can significantly affect business process performance. This study presents a framework for incorporating the effects of organizational structure into business process simulation. Further, it demonstrates how to use and analyze the proposed model. Finally, a case study of the Korean prosecutor's office is presented to illustrate the importance and feasibility of the proposed approach, which will enable a more precise prediction of the changes caused by process and organizational redesignopen

An XML-based process definition language for integrated process management

Business processes are increasingly recognized as important corporate assets that need to be managed throughout their lifecycle. Specially, interests in supply chain management and virtual enterprises require a new paradigm that provides lifecycle support for business processes. Integrated Process Management (IPM) has been proposed as a business process management paradigm that aims at integrating processes using eXtensible Markup Language (XML) and supporting design, analysis, automation, and management of business process knowledge. This paper introduces IPM-PDL, an XML-based process definition language for IPM. Process definitions and related data are integrated using XML which will be translated to a colored Petri Net. Various analysis and simulation can be performed to check the validity of a new process and estimate its performance. The paper also introduces ProcessWare, a prototype system for IPM-process definition language (PDL), along with an extended example which will demonstrate how IPM can effectively manage business processes throughout their lifecycle ranging from process modeling to process knowledge management.close182

The Study on a Cooperative Education System for Logistics: the Case Study of International Program in Logistics Management Systems in Technology University of Eindhoven

Korea needs to build world-class infrastructures that will shape the country into the logistics hub of the Northeast Asia. To achieve the goal, highly skilled and internationalized experts in the area of logistics are required. In Korea, however, there are no education programs that train qualified experts who have not only knowledge in logistics but also industrial and international experiences. This paper introduces a case study on education programs which cultivate such experts. An in-depth analysis was conducted on the global logistics program of Technical University of Eindhoven (TU/e) in the Netherlands. The global logistics program of TU/e is an international post master program in which several universities as well as famous companies such as Philips, Nokia, etc. are tightly involved. We analyzed the success factors of this program by investigating the roles of university, social community, and industry. Based on these success factors, some suggestions are made for establishing competitive logistics education programs in Korea.clos

Analysis of Social Relations Among Organizational Units Derived from Process Models and Redesign of Organization Structure

Despite surging interests in analyzing business processes, there are few scientific approaches to analysis and redesign of organizational structures which can greatly affect the performance of business processes. This paper presents a method for deriving and analyzing organizational relations from process models using social network analysis techniques. Process models contain information on who performs which processes and activities, along with the assignment of organizational units such as departments and roles to related activities. To derive social relations between organizational units from process models, three types of metrics are formally defined: transfer of work metrics, subcontracting metrics, and cooperation metrics. By applying these metrics, various relations among organizational units can be derived and analyzed. To verify the proposed method and metrics, they are applied to standard process models of the semiconductor and electronic, and automotive industry in Korea. This paper presents a taxonomy for diagnosing organization structure based on the presented approach. The paper also discusses how to combine analyses in the taxonomy for redesign of organizational structures.clos