André Mund | Arizona State University (original) (raw)

Papers by André Mund

2002 Annual Conference Proceedings

Neural computing is a relatively new field of artificial intelligence (AI), which tries to mimic ... more Neural computing is a relatively new field of artificial intelligence (AI), which tries to mimic the structure and operation of biological neural systems, such as the human brain, by creating an Artificial Neural Network (ANN) on a computer. Artificial Neural Networks have the ability to be trained by example. Patterns in a series of input and output values of example cases are recognized. This acquired "knowledge" can then be used by the Artificial Neural Network to predict unknown output values for a given set of input values. This paper demonstrates the feasibility of using an Artificial Neural Network (ANN) back-propagation multi-layered model to estimate loads on shores and slabs during the construction phases of a multistory structure. It also determines the number of stories above the slab with the maximum load. This model permits, in an early planning stage, to establish the minimum cycle time for the erection of stories given the number of shores and reshores to be used.

This paper describes the work being performed as part of a three-year project that has been funde... more This paper describes the work being performed as part of a three-year project that has been funded by the National Science Foundation (NSF) and Western Michigan University (WMU). The goal of the project is to enhance the undergraduate construction engineering education. Enhancements will be accomplished by developing: 1) an Internet-based Interactive Construction Management Learning System (ICMLS) and 2) an advising and mentorship program that will enhance practitioner-involvement. The primary undertaking of this project is to incorporate practical content in the construction engineering curricula thus bridging the gap between the classroom and the construction site. The proposed system provides a simple tool for students to gain practical knowledge of construction processes and construction equipment. The paper provides an overview of ICMLS and related developments. Discussion of the Internet based tools adopted in this project is also provided.

2000 Winter Simulation Conference Proceedings (Cat. No.00CH37165)

The modeling and analysis of construction processes is gaining recognition in the construction in... more The modeling and analysis of construction processes is gaining recognition in the construction industry. Recent developments such as Java-based simulation are giving a unique opportunity for improvements in the modeling and analysis of construction processes. Component-based architecture such as JavaBeans can be used to develop modular simulation environments supporting high reusability of software components. This paper describes a prototype component-based architecture for construction simulation. It highlights the work performed by the authors in using JavaBeans for the simulation of construction processes.

1998 Winter Simulation Conference. Proceedings (Cat. No.98CH36274)

Proceedings of the 31st conference on Winter simulation Simulation---a bridge to the future - WSC '99, 1999

Proceedings of the 31st conference on Winter simulation Simulation---a bridge to the future - WSC '99, 1999

The modeling and analysis of construction processes is gaining recognition in the construction in... more The modeling and analysis of construction processes is gaining recognition in the construction industry. Recent developments such as object-oriented modeling, Petri Netbased simulation, and construction project level simulation are being adopted by researchers in the field of construction simulation. This paper describes one such recent development. It highlights the work performed by the authors in using Java for the simulation of construction processes. The methodology used, simulation toolkit adopted, and the construction process simulated is described.

Proceedings of Construction Congress VI: Building Together for a Better Tomorrow in an Increasingly Complex World, 2000

Winter Simulation Conference, 2000

The modeling and analysis of construction processes is gaining recognition in the construction in... more The modeling and analysis of construction processes is gaining recognition in the construction industry. Recent developments such as Java-based simulation are giving a unique opportunity for improvements in the modeling and analysis of construction processes. Component-based architecture such as JavaBeans can be used to develop modular simulation environments supporting high reusability of software components. This paper describes a prototype component-based

Proceeding of the 2001 Winter Simulation Conference (Cat. No.01CH37304)

Production homebuilders operate in a sales-driven environment characterized by a varying demand f... more Production homebuilders operate in a sales-driven environment characterized by a varying demand for homes that is at odds with the homebuilders' and their trade contractors' requirement for work flow consistency. This paper presents a simulation-based approach for studying the production flow issues that production homebuilders face. Seven scenarios, representing different practices and possibilities that the homebuilders have, are simulated using Simphony, a simulation platform intended for building Special Purpose Simulation (SPS) tools. The results of this study indicate that simulation can indeed be used to shed light on the work flow issues that production homebuilders face.

Practice Periodical on Structural Design and Construction, 2002

A multitude of recent studies has demonstrated that the construction of energy-efficient homes ca... more A multitude of recent studies has demonstrated that the construction of energy-efficient homes can result in major benefits to the homebuilder, homeowner, and the nation. Federal and state government agencies are spending significant efforts to demonstrate the benefits of ...

Journal of Construction Engineering and Management, 2002

Due to the central role of cranes in construction operations, specialists in the construction ind... more Due to the central role of cranes in construction operations, specialists in the construction industries have cooperated in the development of structured methods and software for crane selection. Most of these software tools are for crane model selection, and integrated systems that ...

Construction Management and Economics, 2001

We report the results of an [O III] λ5007 survey for planetary nebulae (PN) in three spiral galax... more We report the results of an [O III] λ5007 survey for planetary nebulae (PN) in three spiral galaxies: M101 (NGC 5457), M51 (NGC 5194/5195) and M96 (NGC 3368). By comparing on-band/off-band [O III] λ5007 images with images taken in Hα and broadband R, we identify 65, 64 and 74 PN candidates in each galaxy, respectively. From these data, an adopted M31 distance of 770 kpc, and the empirical planetary nebula luminosity function (PNLF), we derive distances to M101, M51, and M96 of 7.7 ± 0.5, 8.4 ± 0.6, and 9.6 ± 0.6 Mpc. These observations demonstrate that the PNLF technique can be successfully applied to late-type galaxies, and provide an important overlap between the Population I and Population II distance scales. We also discuss some special problems associated with using the PNLF in spiral galaxies, including the effects of dust and the possible presence of [O III] bright supernova remnants.

Civil Engineering and Environmental Systems, 2003

... Integer linear programming was used by Karaa and Nasr [14]14. Karaa, FA and Nasr, AY (1986). ... more ... Integer linear programming was used by Karaa and Nasr [14]14. Karaa, FA and Nasr, AY (1986). Resource management in construction. ... Adeli and Karim [20]20. Adeli, H. and Karim, A. (1997). ... Such a transition is said to be “enabled transition” [23]23. Murata, T. (1989). ...

Civil Engineering and Environmental Systems, 1999

Abstract The construction industry is growing at a fast pace-newer project delivery methodo logie... more Abstract The construction industry is growing at a fast pace-newer project delivery methodo logies are being adopted; design of facilities is continuously improving, newer means, methods, and materials of construction are being used. All these market forces have re sulted in an increase in complexity of on-site construction processes. The construction industry needs advanced tools and techniques to plan and manage these complex con struction processes. This paper describes and utilizes a Petri Net based hierarchical and modular modeling and analysis technique for the planning of complex construction pro cesses. Petri Nets are graphical modeling tools that have been utilized in the modeling and analysis of processes in the fields of software engineering, telecommunications, manufac turing, and construction. This paper highlights advanced features of Petri Nets and their utilization in the modeling and analysis of structural steel erection processes. Through the use of hierarchy, modularity, and resource mo...

This database contains a senes of examples of past crane type selections. Data for each of the ex... more This database contains a senes of examples of past crane type selections. Data for each of the examples includes the type of use of the selected crane, the duration on site, the construction height, the spaciousness of the site, the site's soil bearing capacity, the physical properties of the construction, the frequency of relocations on site, site access, as well as the type of crane selected. The data is used to train and test the neural network for crane type selection. Advanced users could expand this training data to train other neural networks to maintain the Type PARAMETER Type of Use Duration on Site Construction Height

Journal of Construction Education, 2001

Incorporation of classroom tasks that improve the abilities of students to manage the complex dyn... more Incorporation of classroom tasks that improve the abilities of students to manage the complex dynamics, pressures, and demands of construction sites is becoming critical to meet the demands of the construction industry. These goals are, however, difficult to incorporate using traditional educational tools. This paper describes the work being performed as part of a three-year project that has been funded by the National Science Foundation (NSF). The goal of the project is to enhance the undergraduate construction engineering and management education by incorporating practical content into the construction engineering and management curricula, thus bridging the gap between the classroom and the construction site. These enhancements are accomplished by developing: 1) an Internet-based Interactive Construction Management Learning System (ICMLS) and 2) an advising and mentorship program that enhances practitioner-involvement. ICMLS uses Internet-based interactive and adaptive learning environments to train students in the areas of construction methods, equipment and processes. This system is being developed using multimedia, Internet-based computing, databases, discrete-event simulation, and Virtual Reality Modeling Language (VRML).

2002 Annual Conference Proceedings

Neural computing is a relatively new field of artificial intelligence (AI), which tries to mimic ... more Neural computing is a relatively new field of artificial intelligence (AI), which tries to mimic the structure and operation of biological neural systems, such as the human brain, by creating an Artificial Neural Network (ANN) on a computer. Artificial Neural Networks have the ability to be trained by example. Patterns in a series of input and output values of example cases are recognized. This acquired "knowledge" can then be used by the Artificial Neural Network to predict unknown output values for a given set of input values. This paper demonstrates the feasibility of using an Artificial Neural Network (ANN) back-propagation multi-layered model to estimate loads on shores and slabs during the construction phases of a multistory structure. It also determines the number of stories above the slab with the maximum load. This model permits, in an early planning stage, to establish the minimum cycle time for the erection of stories given the number of shores and reshores to be used.

This paper describes the work being performed as part of a three-year project that has been funde... more This paper describes the work being performed as part of a three-year project that has been funded by the National Science Foundation (NSF) and Western Michigan University (WMU). The goal of the project is to enhance the undergraduate construction engineering education. Enhancements will be accomplished by developing: 1) an Internet-based Interactive Construction Management Learning System (ICMLS) and 2) an advising and mentorship program that will enhance practitioner-involvement. The primary undertaking of this project is to incorporate practical content in the construction engineering curricula thus bridging the gap between the classroom and the construction site. The proposed system provides a simple tool for students to gain practical knowledge of construction processes and construction equipment. The paper provides an overview of ICMLS and related developments. Discussion of the Internet based tools adopted in this project is also provided.

2000 Winter Simulation Conference Proceedings (Cat. No.00CH37165)

The modeling and analysis of construction processes is gaining recognition in the construction in... more The modeling and analysis of construction processes is gaining recognition in the construction industry. Recent developments such as Java-based simulation are giving a unique opportunity for improvements in the modeling and analysis of construction processes. Component-based architecture such as JavaBeans can be used to develop modular simulation environments supporting high reusability of software components. This paper describes a prototype component-based architecture for construction simulation. It highlights the work performed by the authors in using JavaBeans for the simulation of construction processes.

1998 Winter Simulation Conference. Proceedings (Cat. No.98CH36274)

Proceedings of the 31st conference on Winter simulation Simulation---a bridge to the future - WSC '99, 1999

Proceedings of the 31st conference on Winter simulation Simulation---a bridge to the future - WSC '99, 1999

The modeling and analysis of construction processes is gaining recognition in the construction in... more The modeling and analysis of construction processes is gaining recognition in the construction industry. Recent developments such as object-oriented modeling, Petri Netbased simulation, and construction project level simulation are being adopted by researchers in the field of construction simulation. This paper describes one such recent development. It highlights the work performed by the authors in using Java for the simulation of construction processes. The methodology used, simulation toolkit adopted, and the construction process simulated is described.

Proceedings of Construction Congress VI: Building Together for a Better Tomorrow in an Increasingly Complex World, 2000

Winter Simulation Conference, 2000

The modeling and analysis of construction processes is gaining recognition in the construction in... more The modeling and analysis of construction processes is gaining recognition in the construction industry. Recent developments such as Java-based simulation are giving a unique opportunity for improvements in the modeling and analysis of construction processes. Component-based architecture such as JavaBeans can be used to develop modular simulation environments supporting high reusability of software components. This paper describes a prototype component-based

Proceeding of the 2001 Winter Simulation Conference (Cat. No.01CH37304)

Production homebuilders operate in a sales-driven environment characterized by a varying demand f... more Production homebuilders operate in a sales-driven environment characterized by a varying demand for homes that is at odds with the homebuilders' and their trade contractors' requirement for work flow consistency. This paper presents a simulation-based approach for studying the production flow issues that production homebuilders face. Seven scenarios, representing different practices and possibilities that the homebuilders have, are simulated using Simphony, a simulation platform intended for building Special Purpose Simulation (SPS) tools. The results of this study indicate that simulation can indeed be used to shed light on the work flow issues that production homebuilders face.

Practice Periodical on Structural Design and Construction, 2002

A multitude of recent studies has demonstrated that the construction of energy-efficient homes ca... more A multitude of recent studies has demonstrated that the construction of energy-efficient homes can result in major benefits to the homebuilder, homeowner, and the nation. Federal and state government agencies are spending significant efforts to demonstrate the benefits of ...

Journal of Construction Engineering and Management, 2002

Due to the central role of cranes in construction operations, specialists in the construction ind... more Due to the central role of cranes in construction operations, specialists in the construction industries have cooperated in the development of structured methods and software for crane selection. Most of these software tools are for crane model selection, and integrated systems that ...

Construction Management and Economics, 2001

We report the results of an [O III] λ5007 survey for planetary nebulae (PN) in three spiral galax... more We report the results of an [O III] λ5007 survey for planetary nebulae (PN) in three spiral galaxies: M101 (NGC 5457), M51 (NGC 5194/5195) and M96 (NGC 3368). By comparing on-band/off-band [O III] λ5007 images with images taken in Hα and broadband R, we identify 65, 64 and 74 PN candidates in each galaxy, respectively. From these data, an adopted M31 distance of 770 kpc, and the empirical planetary nebula luminosity function (PNLF), we derive distances to M101, M51, and M96 of 7.7 ± 0.5, 8.4 ± 0.6, and 9.6 ± 0.6 Mpc. These observations demonstrate that the PNLF technique can be successfully applied to late-type galaxies, and provide an important overlap between the Population I and Population II distance scales. We also discuss some special problems associated with using the PNLF in spiral galaxies, including the effects of dust and the possible presence of [O III] bright supernova remnants.

Civil Engineering and Environmental Systems, 2003

... Integer linear programming was used by Karaa and Nasr [14]14. Karaa, FA and Nasr, AY (1986). ... more ... Integer linear programming was used by Karaa and Nasr [14]14. Karaa, FA and Nasr, AY (1986). Resource management in construction. ... Adeli and Karim [20]20. Adeli, H. and Karim, A. (1997). ... Such a transition is said to be “enabled transition” [23]23. Murata, T. (1989). ...

Civil Engineering and Environmental Systems, 1999

Abstract The construction industry is growing at a fast pace-newer project delivery methodo logie... more Abstract The construction industry is growing at a fast pace-newer project delivery methodo logies are being adopted; design of facilities is continuously improving, newer means, methods, and materials of construction are being used. All these market forces have re sulted in an increase in complexity of on-site construction processes. The construction industry needs advanced tools and techniques to plan and manage these complex con struction processes. This paper describes and utilizes a Petri Net based hierarchical and modular modeling and analysis technique for the planning of complex construction pro cesses. Petri Nets are graphical modeling tools that have been utilized in the modeling and analysis of processes in the fields of software engineering, telecommunications, manufac turing, and construction. This paper highlights advanced features of Petri Nets and their utilization in the modeling and analysis of structural steel erection processes. Through the use of hierarchy, modularity, and resource mo...

This database contains a senes of examples of past crane type selections. Data for each of the ex... more This database contains a senes of examples of past crane type selections. Data for each of the examples includes the type of use of the selected crane, the duration on site, the construction height, the spaciousness of the site, the site's soil bearing capacity, the physical properties of the construction, the frequency of relocations on site, site access, as well as the type of crane selected. The data is used to train and test the neural network for crane type selection. Advanced users could expand this training data to train other neural networks to maintain the Type PARAMETER Type of Use Duration on Site Construction Height

Journal of Construction Education, 2001

Incorporation of classroom tasks that improve the abilities of students to manage the complex dyn... more Incorporation of classroom tasks that improve the abilities of students to manage the complex dynamics, pressures, and demands of construction sites is becoming critical to meet the demands of the construction industry. These goals are, however, difficult to incorporate using traditional educational tools. This paper describes the work being performed as part of a three-year project that has been funded by the National Science Foundation (NSF). The goal of the project is to enhance the undergraduate construction engineering and management education by incorporating practical content into the construction engineering and management curricula, thus bridging the gap between the classroom and the construction site. These enhancements are accomplished by developing: 1) an Internet-based Interactive Construction Management Learning System (ICMLS) and 2) an advising and mentorship program that enhances practitioner-involvement. ICMLS uses Internet-based interactive and adaptive learning environments to train students in the areas of construction methods, equipment and processes. This system is being developed using multimedia, Internet-based computing, databases, discrete-event simulation, and Virtual Reality Modeling Language (VRML).