CEE at GT 2011 Graduate Brochures

Page 1

SCHOOL OF CIVIL & ENVIRONMENTAL ENGINEERING

2011 Facts

The School of Civil & Evironmental Engineering (CEE) at Georgia Tech is one of 10 schools within the Institute’s College of

Engineering. The School has graduated more than 10,000 students and is consistently ranked as one of the most prominent programs of its kind in the country. As globalization redefines the traditional role of civil and environmental engineers, CEE is laying the groundwork for future generations to solve complex challenges facing growing populations. Our faculty are leaders in their respective disciplines, providing an exceptional range of opportunities for students both inside an outside of the classroom. Through technological solutions, global perspective, and a solid engineering core, CEE at Georgia Tech is educating leaders in the green revolution, helping to define the 21st Century for humanity.

BY THE NUMBERS

838 No.3 331 No.5 61 15

2011 U.S. News & World Report Rankings

undergraduate students

graduate students

rigor diversitylentrepreneurial spiritm

civil

engineering

undergraduate and graduate programs

environmental engineering

undergraduate and graduate programs

tenure-track

faculty

research centers

3

Core Values:

29%

Female undergraduate student body

national and/or state funded

OUR ADMINISTRATION Dr. Joseph B. Hughes Karen and John Huff School Chair and Professor

Dr. Kenneth M. Will Associate Chair, Graduate Studies and Associate Professor

Dr. Reginald DesRoches Associate Chair and Professor

Dr. Paul A. Work Associate Chair, Associate Director, GT Savannah and Associate Professor

Dr. Donald Webster Associate Chair, Undergraduate Studies and Professor For information on development opportunities in CEE at Georgia Tech, contact: Laurie Somerville, Director of Development

404.894.2772 laurie.somerville@ce.gatech.edu

School of Civil and Environmental Engineering, Georgia Institute of Technology, 790 Atlantic Drive, Atlanta, GA 30332-0355 404.894.2201 (Phone) • 404.894.2278 (Fax) • http://www.ce.gatech.edu/


SCHOOL OF CIVIL & ENVIRONMENTAL ENGINEERING

2011 Facts

PROGRAMS The School of Civil & Environmental Engineering (CEE) at Georgia Tech offers 7 degrees (2 B.S., 4 M.S., and 1 Ph.D.) all of which include broad, comprehensive instruction and research across five disciplines of civil engineering: Construction Engineering, Environmental Engineering; Geo-systems Engineering; Structural Engineering, Mechanics and Materials; Transportation Systems Engineering; and Environmental Fluid Mechanics and Water Resources.

RESEARCH THRUSTS CEE research expenditures and projects continue to grow ($21M - FY 2010). The School has 15 federal and/or

state supported research centers that include faculty and students from other schools and universities. These specialized centers work to solve interdisciplinary problems to provide growing populations with innovative solutions. Our faculty and students work with industry and government, finding innovative solutions to help drive economic growth while improving human life on a global scale. CEE faculty are leading and/or actively participating in some of the Institute’s major research initiatives including:

Energy

• Bio-fuel transportation and supply chain solutions • Wind, wave and tidal energy • Solar power using hydrodynamics • Microbial fuel cells – using waste for electricity • Energy from waste and landfills • CO2 storage • Nuclear waste disposal • Enhanced Geothermal Systems

Environment & Health

• Water quality and treatment • Wastewater reclamation and reuse • Health effects of air pollution • Bio-remediation of hazardous waste • Pollution control and modeling

Infrastructure

• Disaster resilient infrastructure systems • Materials for next generation infrastructure • Sensing the built environment • Infrastructure policy • Infrastructure and energy • Deterioration of bridges

Sustainability

• Atmospheric processes related to global warming • Microbial processes for waste decomposition • Using fly ash for materials • Sustainable infrastructure systems • Sustainability and social interaction • Sustainable solutions for growth and development

Transportation

• Innovation and analysis of freight and passenger air travel • Context Sensitive Solution (CSS) to develop scenic, historic, safe and environmentally friendly transportation systems • Benefits of transportation investment • Innovative materials and construction techniques • Operational research to restore performance of highways during hazardous events • Policy and planning • Security, evacuation planning and modeling • Structures and Bridges

$21 million in new research funding FY 2010.

7 degrees

offered: 2 BS, 4 MS, 1 PhD.

Water

• Environmentally friendly hydropower installations • Flood and drought management • Environmentally sustainable desalination technologies • River restoration • Water systems security • Remote and conventional sensors in water resources management • Policy, legal, and institutional frameworks for shared water resources

People are our priority. The world is our laboratory.

School of Civil and Environmental Engineering, Georgia Institute of Technology, 790 Atlantic Drive, Atlanta, GA 30332-0355 404.894.2201 (Phone) • 404.894.2278 (Fax) • http://www.ce.gatech.edu/


Graduate Studies

Construction Engineering GEOSYSTEMS ENGINEERING Technological and managerial evolution of the construction industry during the last two decades demands a new generation of modern construction professionals. To successfully compete in national and international arenas during all phases of a project, construction organizations need engineers with strong leadership and interpersonal skills that complement solid technical and management competence. These professionals lead project construction through vision, strategic planning, engineering and communication. They also work within integrated project teams and are committed quality, sustainability, and innovative technologies. Students who study at Georgia Tech will learn methods to build civil infrastructure projects by effectively controlling the project cost and duration, while meeting safety, quality, environmental and other criteria. Established methods are taught in a variety of courses while graduate students have the opportunity to assist in researching new ones. Georgia Tech focuses on innovative research in construction engineering where students participate in state-of-the-art basic and applied projects in construction information technology, infrastructure sensors and sensor systems, construction data modeling and visualization, knowledge management for decision support systems, and other advanced technologybased areas. The interdisciplinary nature of construction engineering encourages students to supplement graduate courses in civil and environmental engineering with those from other areas at Georgia Tech, such as Computer Science, Electrical and Computer Engineering, Building Construction, and Industrial and Systems Engineering.

OPPORTUNITIES Georgia Tech offers a collaborative environment for students, faculty, and staff across campus that allows success. A strong and active research program in Construction Engineering and Management funded by the National Science Foundation (NSF), Construction Industry Institute (CII), Georgia Department of Transportation (GDOT), National Cooperative Highway and Research Program (NCHRP), foundations, and various industry partners provide an excellent complement to the educational component of the program. NATIONALLY RANKED Georgia Tech’s construction-related programs are nationally recognized. Georgia Tech is the largest producer of engineers in the country, and is ranked as the fourth best engineering university in the nation (second best public university for engineering). Georgia Tech’s Civil and Environmental Engineering area is ranked #4, Industrial and Systems Engineering/Logistics area is ranked #1, City Planning is ranked #2 and Aeronautical Engineering is ranked #2. The diversity and strength of these programs provide students with the unique opportunity to specialize in many areas. Recent research in pro-active work zone safety, material tracking, asset tracking, building information modeling, visualization and augmented reality, infrastructure/asset management, asset monitoring, and many other areas reflect the range of research conducted by construction researchers. The faculty expects the graduates of the program to be well educated on the latest technologies, concepts, and ideas in the construction and infrastructure community.

School of Civil and Environmental Engineering | Georgia Institute of Technology | http://www.ce.gatech.edu


Graduate Studies

Construction Engineering COURSES

FACULTY

• • • •

Sensing and analysis of infrastructure visual and spatial data, intelligent automation of construction tasks, infrastructure conditioning assessment, modeling, sensing, and management, project control systems and field management technologies.

• • • • • • •

Construction Engineering & Management Construction Planning & Estimating Construction Operations Construction Project Planning Computer Applications for Constructuction Engineering Environmentally Conscious Design & Construction Construction Project Controls Advanced Planning & Estimating Methods Construction Law Project Delivery & Procurement Construction Organization Construction Field Engineering

ATLANTA AREA

Georgia Tech students work with some of the leading construction and infrastructure researchers in the country, and the rapidly growing Atlanta region provides a living construction laboratory. Students study first-hand what makes successful construction projects. Site visits are often conducted to infrastructure sites such highway and bridge construction, high-rise buildings, capital intensive facilities such as power plants, the world’s busiest airport, tunnels, and other unique construction projects. In addition, throughout the year, various activities are organized by construction and infrastructure oriented students. Recent outings include construction seminars that include representatives from local and regional construction companies, golfing, barbequing, and other outdoor activities such as visiting Savannah, the Atlantic and Gulf of Mexico beach.

Ioannis Brilakis, Assistant Professor

Jochen Teizer, Assistant Professor

Engineering and management in construction and transportation, safety and health in construction and transportation, real-time data acquisition and processing technology, inference management, resource tracking, and productivity analysis, remote sensing, automation and robotics, real-time 3D immersive modeling and visualization, computer vision and image processing, sustainability.

RESEARCH FACILITIES

Unique laboratories for construction engineering research and education include: • The Construction Information Technology Laboratory (CITL) is a research facility equipped with small scale, photorealistic infrastructure models that operate as preliminary research test beds, and visual and spatial sensing equipment, such as high resolution video cameras, spatial cameras and other. • The Real-time Automated Project Information and Decision Systems laboratory (RAPIDS) is a research facility used in the development and application of sensing technologies to collect and process construction and transportation related infrastructure data so as to support real-time decision making. The facility is equipped with optical and wireless technologies (laser scanner, RFID, UltraWideband, optical sensors, and many more).

School of Civil and Environmental Engineering, Graduate Program, Georgia Institute of Technology, Atlanta, GA 30332-0355 404.894.2246 (Phone) • 404.385.0571 (Fax) • gradinfo@ce.gatech.edu (Email) • http://ce.gatech.edu/academics/graduate (Web) For more information, please contact Carol Maddox at 404.894.2282


Graduate Studies

Environmental Fluid Mechanics and Water Resources Engineering ENVIRONMENTAL FLUID MECHANICS & WATER RESOURCES (EFMWR) at the Georgia Institute of Technology focuses on water, atmosphere, and land systems, with emphasis on the science and engineering applications of hydroclimatology, environmental transport processes and integrated resource management. The program mission is to educate scientists and engineers through well integrated and stimulating courses; create new knowledge through innovative experimental, computational, and modeling research; and develop new technologies and tools that benefit engineering practice in fluid mechanics, hydraulics, hydrology, hydroclimatology, and water resources. RESEARCH AREAS Research is concentrated in three distinct areas and is supported by federal, state, and international agencies including the National Science Foundation, Georgia Department of Transportation, United States Agency of International Development, National Oceanic and Atmospheric Administration, Environmental Protection Agency, United States Geological Survey, Office of Naval Research, and World Bank. Hydroclimatology and Water Resources research focuses on terrestrial and atmospheric water/energy processes and fluxes; vegetation dynamics and decision support systems promoting holistic, equitable, and sustainable use of water resources. Projects include: • Remote sensing of hydrologic variables • Coupling of atmospheric, surface, and subsurface models • Flood/drought forecasting and management • Decision support systems for water resources assessment, planning, and operation • Climate change research and impact assessments Environmental Fluid Mechanics and Hydraulic Engineering research focuses on turbulent entrainment, transport, and mixing processes in natural and engineered environments. Projects include: • Sediment transport and bridge scour • Wastewater dispersion in coastal waters • Cohesive sediment resuspension • Flood hydraulics and river restoration • Biological and ecological flows • Hyporheic exchange in streams • Hydrodynamics in UV and ozone reactors Coastal Engineering research is primarily conducted through the Georgia Tech Regional Engineering Program (GTREP) in Savannah, Georgia. Projects include: • Water waves generated by winds, landslide, avalanche, or earthquake • Dredging for navigation or sand supply • Circulation and transport in estuaries, rivers, and lakes • Coastal current modeling • Beach erosion

FACILITIES Research and teaching are supported by state of the art experimental, computational, and data acquisition facilities. The Environmental Fluid Mechanics Laboratory includes a large constanthead tank, a 4.3-m wide sediment scour flume, a 24-m long tilting flume, a recirculating flume for cohesive sediment resuspension, a recirculating saltwater flume, a density-stratified towing tank, and a 24-m long wave tank. Each of the flumes is also equipped with cuttingedge instrumentation. GRADUATE COURSES • Physical Hydrology • Probability and Statistics for Civil & Environmental Engineers • Water Resources Management • Intermediate Fluid Mechanics • Advanced Fluid Mechanics • Environmental Fluid Mechanics • Advanced Environmental Fluid Mechanics • Fluid Mechanics of Organisms • Open Channel Hydraulics • Sediment Transport • Computational Fluid Mechanics • Hydrodynamic Stability and Turbulence • Linear Wave Theory • Coastal Geology and Sediment Transport • Introduction to Coastal Engineering • Coastal Engineering Measurements • Coastal Structures • Coastal Hydrodynamics • Nonlinear Wave Theory • Convective Transport • Hydroclimatology • Flow through Porous Material

Velocity field during cruising for Euchaeta elongata measured via particle image velocimetry (PIV).

Integrated water resources planning and management including climate, hydrology, water resources, and socio-economics.

The environmental fluid mechanics laboratory occupies 16,000 ft² of space furnished with state of the art equipment and technologies used in major research initiatives.

School of Civil and Environmental Engineering | Georgia Institute of Technology | http://www.ce.gatech.edu


Graduate Studies

Environmental Fluid Mechanics and Water Resources Engineering FACULTY

Rafael Bras, Sc.D., K. Harrison Brown Chair Professor, Provost and Executive Vice President for Academic Affairs Biophysical processes (radiation, heat fluxes, and evapotranspiration); hydrological processes; biochemical processes and vegetation dynamics; and complex and self-organizing systems. Aris Georgakakos, Ph.D., Professor, EFMWR Group Leader and Director of GWRI Remote sensing of hydrologic variables; flood and drought management; hydrothermal scheduling; agricultural planning; decision support systems for river basin planning, management, and climate change impact assessments. Phil Roberts, Ph.D., P.E., Professor Environmental fluid mechanics, mixing and dynamics of rivers, lakes, coastal waters, and estuaries; outfalls for wastewater discharge; mathematical models of wastewater fate and transport; oceanographic field programs and data interpretation. Terry Sturm, Ph.D., P.E., Professor Hydraulic engineering; open channel flow resistance; compound channel hydraulics; sediment transport; scour around bridge abutments; cohesive sediment re-suspension. Donald Webster, Ph.D., P.E., Professor Fluid mechanics; turbulence; turbulent and chaotic mixing; biological, ecological, and environmental flow applications; experimental methods. Marc Stieglitz, Ph.D., Associate Professor Watershed dynamics with emphasis on the interactions between climate, climate variability, hydrology, and terrestrial biology; terrestrial carbon and nitrogen cycling; hydroclimatology and land-atmosphere interactions; impacts of climate change.

Jian Luo, Ph.D., Assistant Professor Groundwater contamination and remediation; reactive transport in porous and fractured media, water resources management and policy; stochastic hydrogeology; geostatistics; linear and nonlinear systems; inverse modeling. Thorsten Stoesser, Ph.D., Assistant Professor Computational fluid dynamics; turbulence modeling; environmental turbulence; flood protection; river restoration; hydraulic structures; hydrodynamics in water treatment and storage; and hydropower. Huaming Yao, Ph.D., Principal Research Engineer Hydropower and river basin management; information and decision support systems for water resources; and dynamic optimization methods. Jinfeng Wang, Sc.D., Principal Research Scientist Evapotranspiration; remote sensing of hydroclimatic variables; stochastic processes in hydroclimatology.

GT SAVANNAH FACULTY

Paul Work, Ph.D., P.E., Associate Professor Coastal engineering; water waves, sediment and contaminant transport; beach nourishment; ports and harbors; coastal and riverine flooding; and various other applications of environmental fluid mechanics. Projects often combine field observations and numerical modeling tools. Hermann Fritz, Ph.D., Associate Professor Coastal hazards; tsunamis and hurricane storm surges; subaerial and submarine landslides; hydropower and marine renewable energy; hydraulic and coastal structures; laser measurement techniques; numerical simulation of multiphase flows; natural hazard mitigation and risk analysis.

CONTINUING EDUCATION CLASSES Offered through the Georgia Water Resources Institute (GWRI) at: http://www.gtri.org. • Hydrologic Engineering for Dam Design • River Hydraulics and Bridge Scour using HEC-RAS • Decision Support for River Basin Planning and Management • Water Quality Models for Lakes and Rivers • Culvert Hydraulics • GIS and Database Development for Envi- ronmental Applications

INTERNATIONAL EDUCATION INITIATIVES

The Georgia Water Resources Institute (GWRI) and the EFM&WR program at Georgia Tech have recently partnered with the University of Pretoria Water Institute in South Africa to offer a new joint Master’s program on integrated water resources planning and managment. This comprehensive program is conducted at the University of Pretoria (UP) campus and includes graduate courses jointly taught by GT and UP faculty and the completion of a Master’s thesis. Contact Dr. Aris Georgakakos (aris.georgakakos@ce.gatech.edu) for additional information about this program.

Experimental and numerical modeling of freshwater seawater interface in a multi-layered aquifer.

Kevin Haas, Ph.D., Associate Professor Coastal engineering; numerical modeling of nearshore circulation; sediment transport in coastal regions; hydrodynamics of rip current systems; morphodynamic evolution; sediment and contaminant transport in tidal marshes; extracting energy from waves and currents.

Physical modeling of the Boston outfall helped optimize effluent mixing and minimize its environmental impact.

Francesco Fedele, Ph.D., Assistant Professor Nonlinear water waves; rogue waves; oceanic turbulence; probability & statistics of nonlinear random wave fields; image processing for coastal and ocean engineering; compressive sensing via active surfaces.

Green and purple dye released in a feeder channel, converging and moving offshore in a rip current. This research was part of a field campaign to measure the pressure-gradient force and the resulting flows within a rip current system off of Moreton Island, Australia.

School of Civil and Environmental Engineering, Graduate Program, Georgia Institute of Technology, Atlanta, GA 30332-0355 (Ph) 404.894.2246 • (Fx) 404.385.0571 • (Email) gradinfo@ce.gatech.edu • (Web) http://ce.gatech.edu/academics/graduate For additional information about the EFMWR graduate program, visit: http://ce.gatech.edu/research/efmwr


Graduate Studies

Environmental Engineering ENVIRONMENTAL ENGINEERING (EnvE) at Georgia Tech provides comprehensive educational and research opportunities in air, land and water science & engineering. The principal focus areas include: environmental biotechnology; water quality and treatment; wastewater reclamation and reuse; hazardous and solid waste engineering; ground water modeling and treatment; air quality monitoring, pollution control and modeling; environmental sciences; and industrial ecology. Because of the multidisciplinary credentials of its faculty, the excellence of its research facilities, and extensive collaboration with other engineering and science faculty, the program attracts high-caliber students from a variety of engineering and science disciplines. Environmental engineering is also a key component in the campus initiatives on bioengineering, bioscience & biotechnology, nanotechnology, materials science & technology, sustainable technology & development, environmental science & technology and energy systems. Our mission is to educate scientists and engineers through a stimulating and diverse educational experience, to create new knowledge through innovative research, and to transform research products to new environmental technologies to benefit engineering practice and society. Course offerings in Environmental Engineering emphasize basic engineering and scientific principles, system design, applications of environmental engineering operations and processes, and regional and global atmospheric and hydrological systems. FACILITIES

The program faculty, staff, students and research activities of Environmental Engineering are housed in the Environmental Science & Technology (ES&T), Daniel Laboratory (DEEL) and Sustainable Education (SEB) buildings on the Georgia Tech campus. Interactive collaborations with faculty in Earth & Atmospheric Sciences (EAS), Biology, Chemistry & Biochemistry, Biomedical Engineering (BME), Material Science & Engineering (MSE), Chemical and Biomolecular Engineering (ChBE), and other disciplines within Civil & Environmental Engineering (CEE) provide expanded resources and capabilities for EnvE students. We also have collaborations in Atlanta with units at Emory University and the US Centers for Disease Control and Prevention. ES&T and DEEL have an excellent range of laboratories with exceptional capabilities and instrumentation for educational and research programs. The multimedia environmental simulations laboratory (MESL) in SEB provides advanced capabilities in environmental modeling and exposure assessment.

COURSES • • • • • • • • • • • • • • • • • • • • • • • • •

Advanced Environmental Chemistry Advanced Topics in Air Pollution Air Pollution Formation and Control Air Pollution Meteorology Air Pollution Physics and Chemistry Atmospheric Aerosols Atmospheric Boundary Layer Atmospheric Chemical Modeling Biological Processes Biotransformations of Xenobiotic Compounds Chemical Principles Contaminant Sediment Geochemistry Design of Treatment Facilities for Drinking Water Environmental Modeling Fate of Contaminants in the Subsurface Flow and Transport through Porous Media I, II Hazardous Waste Site Remediation Industrial Ecology Membrane Processes Microbial Principles Modeling and Simulation of Biological Treatment Systems Process Principles Physicochemical Processes Separation Processes Solid Liquid Separations

RESEARCH

Opportunities are available in these and other areas: - Air pollution: formation, transport, and deposition of aerosols - Analytical chemistry and applied spectroscopy - Atmospheric and oceanic dynamics - Atmospheric dynamics of air and contaminant dispersion - Carbon sequestration - Characterization of ambient air quality and air pollutant source emissions - Chemical and environmental multiphase transport processes - Ecology and physiology of microorganisms involved in degradation processes - Environmental and aquatic chemistry - Environmental biotechnology for bioremediation of contaminated soil, sediments & waters

- Evolution and adaptation of microbial communities - Green chemistry and biochemistry - Hazardous substances in sediments, soils, waters and residues - Multimedia (air, water/ groundwater) environmental simulations - Nanotechnology in the environment - Physical, chemical, and biological processes influencing subsurface fate and transport of contaminants - Physicochemical processes for water and wastewater treatment - Sustainable technology and development

School of Civil and Environmental Engineering | Georgia Institute of Technology | http://www.ce.gatech.edu


Graduate Studies

Environmental Engineering EnvE FACULTY

Mustafa Aral, Ph.D., Professor Large scale environmental simulations in surface water and groundwater specialization areas; environmental exposure analysis; exposure-dose reconstruction and health risk assessment. Dr. Aral has numerous publications in these areas and actively pursues a state-ofthe-art research program on these topics in the Multimedia Environmental Simulations Laboratory (MESL). Michael Bergin, Ph.D., Professor Air pollution; formation, transport, and the deposition of aerosols; influence of aerosols on climate; air/snow exchange of aerosol chemical species; paleoclimate studies based on ice core chemistry; fog/cloud formation and chemistry; microcontamination in industrial processes. Yongsheng Chen, Ph.D., Associate Professor Nanotechnology for water and air purification and pollutant sensing; fate, transport, transformation, and toxicity of manufactured nanomaterials; physicochemical processes for algae harvesting and water treatment in biofuel production; urban sustainability. John Crittenden, Ph.D., P.E., Director of Brook Byers Institute for Sustainable Systems, Hightower Chaired Professor, and Georgia Research Alliance Eminent Scholar Sustainable engineering; physical chemical treatment processes; modeling of wastewater and water treatment processes; reforming of biomass to create commodity chemicals and fuels; preparation of zeolites and catalysts; surface chemistry and thermodynamics; mass transfer; numerical methods. Ching-Hua Huang, Ph.D., Associate Professor Transformation and fate of emerging contaminants in natural and engineered aquatic systems; surface reactions and catalysis involving natural minerals and novel nanomaterials; chemistry of emerging disinfection by-products in water treatment systems; physicochemical water treatment processes; Fundamental reaction activity, kinetics and mechanisms in environmental systems; development and applications of novel analytical techniques for emerging environmental contaminants. Joseph B. Hughes, Ph.D., P.E., Professor and Karen and John Huff School Chair Environmental biotechnology; nanomaterial and transport; environmental engineering needs in developing countries.

Jaehong Kim, Ph.D., Associate Professor Environmental implication and application of nanomaterials; chemical and UV disinfection process design and optimization; mechanism of pathogen inactivation; disinfection byproduct formation mechanism and control; membrane processes (ultrafiltration, nanofiltration and reverse osmosis) for water treatment and reuse; seawater desalination. Kostas T. Konstantinidis, Ph.D., Assistant Professor Environmental microbiology and genomics; computational approaches for studying the ecology and evolution of microorganisms; genomic and proteomic techniques to investigate and quantify in-situ important microbialmediated processes; population and singlecell genomics; assessing the extent and value of biodiversity within natural assemblages of Bacteria and Archaea; biotechnological applications of microbial functional diversity; environmental relevance of microbial diseases.

Jim Spain, Ph.D., Professor Environmental distribution, persistence, and biodegradation of chemical pollutants; green chemistry synthesis of organic compounds by biocatalysis; biodegradation pathways in bacteria for application to bioremediation; environmental biotechnology related to marine, freshwater and subsurface ecosystems; evolution and adaptation of microbial communities; biochemistry, ecology, and molecular biology of environmentally relevant microbes; discovery and characterization of bacteria that degrade synthetic organic compounds; photobiological hydrogen production by cyanobacteria. Marc Stieglitz, Ph.D., Associate Professor Watershed dynamics with emphasis on the interactions between climate, climate variability, hydrology, and terrestrial biology; terrestrial carbon and nitrogen cycling; hydroclimatology and land-atmosphere interactions; impacts of climate change.

James A. Mulholland, Ph.D., Professor and EnvE Program Coordinator Combustion byproduct formation and control; incineration; thermochemistry of polycyclic aromatic hydrocarbons and chlorinated aromatic species; molecular modeling; spatiotemporal analysis of ambient air pollutants.

Sotira Yiacoumi, Ph.D., Professor Colloidal and interfacial phenomena in environmental systems; sorption phenomena; colloidal interactions; influence of sorption on colloidal behavior; molecular techniques; and novel environmental processes.

Spyros G. Pavlostathis, Ph.D., B.C.E.E., Professor Environmental biotechnology and bioprocesses for bioremediation of contaminated natural systems and treatment of industrial and municipal wastewater; bioavailability, fate and biotransformation of recalcitrant organic compounds such as dyes, pesticides, antioxidants, disinfectants, and antibiotics; biotransformation of emerging environmental contaminants; bioenergy and biofuels from biomass and waste streams; development of halophilic and thermophilic microbial processes; kinetics and modeling of biotransformation/ treatment proesses.

Min Cho, Ph.D., Research Engineer II Jiabao Guan, Ph.D., P.E., Sr. Research Engineer Yongtao Hu, Ph.D., Research Scientist II Wonyong Jang, Ph.D., P.E., Research Engineer II Shirley Nishino, Ph.D., Sr. Research Scientist Talat Odman, Ph.D., Principal Research Engineer Guangxuan Zhu, Ph.D., Sr. Research Scientist

RESEARCH FACULTY

ASSOCIATED FACULTY

Kevin Haas, Ph.D., Associate Professor Hermann Fritz, Ph.D., Associate Professor Paul Work, Ph.D., P.E., Associate Professor Costas Tsouris, Ph.D., joint appointment with Oak Ridge National Laboratory and Georgia Institute of Technology

Armistead (Ted) Russell, Ph.D., Georgia Power Distinguished Professor Atmospheric dynamics of air; gas-phase and aerosol pollutants; air quality modeling; atmospheric chemistry; control strategy planning and evaluation; environmental policy analysis; emissions control technology development; emissions inventory modeling and assessment; environmental risk assessment and uncertainty analysis; combustion modeling.

School of Civil and Environmental Engineering, Graduate Program, Georgia Institute of Technology, Atlanta, GA 30332-0355 404.894.2246 (Phone) • 404.385.0571 (Fax) • gradinfo@ce.gatech.edu (Email) • http://ce.gatech.edu/academics/graduate For more information, please contact Jenny Eaton at 404.894.3317 or visit our website at http://ce.gatech.edu/research/enve


Graduate Studies

Geosystems Engineering GEOSYSTEMS ENGINEERING

combines geotechnics, geomaterials, geophysics, geochemistry, geomechanics, and geology with the focus on the behavior of natural and man-made materials in engineered systems. The Geosystems Engineering program at Georgia Institute of Technology comprises nine full-time faculty members, an adjunct faculty and various visiting professors, and more than forty graduate students and postdoctoral researchers. Research within the Geosystems Engineering program encompasses both traditional and emerging topics in the field. It is supported by federal and state agencies such as the National Science Foundation, the U.S. Geological Survey, the Federal Highway Administration, the U.S. Department of Energy, and the Georgia Department of Transportation, as well as private companies in the mining, petroleum, and energy industries. Graduate students may select from more than twenty graduate course offerings, engage in research and teaching, and participate in a wide range of professional development and social activities coordinated by the Georgia Tech Geotechnical Society.

FACILITIES The Geosystems Engineering instruction and research laboratories occupy in excess of 900 m2 of custom space within the Mason Civil Engineering Building. The program is home to numerous state-of-the-art facilities which include: • George F. Sowers Soil Mechanics • Instruction Laboratory • Particulate Media Research Laboratory • Geomaterial Surface and Structure Characterization Laboratory • Geoenvironmental Laboratory • Rock and Fracture Mechanics Laboratory • Soil Dynamics Laboratory In addition, the Geosystems Engineering Robnett Library houses an extensive collection of books, conference proceedings and technical journals, including the comprehensive George F. Sowers Collection.

GEORGIA TECH GEOTECHNICAL SOCIETY The Geotechnical Society serves both graduate and undergraduate students who share a common interest in geosystems engineering. The objective of the Society is to foster both personal and professional growth of the students. The Society organizes seminars by external cosultants and researchers as well as fellow students within the program. The Society coordinates student participation in not only conferences and professional meetings but also intramural athletics and social events. The Geotechnical Society Fund, a pool of resources contributed to the Society by alumni, corporate donors, and friends of the Geosystems Engineering program, is also administered by the Society.

School of Civil and Environmental Engineering | Georgia Institute of Technology | http://www.ce.gatech.edu


Graduate Studies

Geosystems Engineering COURSES Applied Fracture Mechanics Analysis of Earth Structures Applied Signal Processing and Inverse Problem Solving Dynamic Analysis in Geotechnical Engineering Energy Geotechnics Environmental Geotechnics Experimental Methods in Research Foundation Systems Geomechanics Modeling Geotechnical Earthquake Engineering Geotechnical Seepage Analysis In-situ Testing and Site Characterization IT-based Infrastructure Management Laboratory Characterization of Geomaterals Landfill Design and Management Mathematical Applications for Civil and Environmental Engineering Pavement Design Physical Properties and Rheology of Rocks Plasticity of Geomaterials Rock Mechanics Soil Behavior Spatial Analysis Theoretical Geomechanics Wave-based Characterization of Particulate Materials

FACULTY

Glenn J. Rix, Ph.D. Professor and Group Leader Geotechnical earthquake engineering; seismic risk analyses of port facilities; in situ and laboratory methods for characterizing dynamic properties of soils. Dominic Assimaki, Sc. D. Assistant Professor Strong motion site response analysis; dyna-mic soil-foundation-structure interaction; inverse problems in geophysics; and scatter-ing of seismic waves in heterogeneous media. Robert C. Bachus, Ph. D., P.E. Adjunct Professor, Principal - GeoSyntec Consultants Geotechnical engineering design; municipal and hazardous waste landfills design; construction and management; and geosynthetics development and applications. Susan E. Burns, Ph.D., P.E. Professor Geoenvironmental engineering; engineered materials; physical and chemical behavior of soils; and physical remediation of contaminated soil and groundwater. J. David Frost, Ph.D. P.E., P.Eng. Professor, Vice Provost, and Director - Savannah Campus Geomaterial characterization; 2-D and 3-D microstructure quantification; interface mechanisms; spatial earthquake hazard analysis; digital imaging processing and analysis, and performance of earth retaining structures.

Leonid N. Germanovich, Ph.D. Professor Properties of earth and extra-terestrial materials; rock mechanics; fracture mechanics; micro-mechanical modeling; geophysics; applied mathematical methods; mining and petroleum engineering; tsunamigenic landslides and methane hydrates; shear bands and hydraulic fractures in soils; and hydrology and biomechanics. Haiying Huang, Ph.D. Assistant Professor Rock mechanics; fracture mechanics; coupled processes; flow in porous media; fluid injection into granular media; hydraulic fracturing; rock cutting and indentation. Paul W. Mayne, Ph.D, P.E. Professor In situ testing; site characterization; foundation systems; soil properties determination; geostatic stress state; ground improvement; and cone penetrometers. J. Carlos Santamarina, Ph.D. Professor and Goizueta Chair Micro-scale behavior of particulate materials; experimental micro-mechanics; engineered soils; wave-based process monitoring and associated inverse problems; and geotechnical processes in energy and mining applications. Yi-Chang James Tsai, Ph.D., P.E. Associate Professor Optimization of spatial sensing and information technology; GPS/GIS; image/laser sign processing; infrastructure/asset management; pavement technology, safety and security; and port logistics.

School of Civil and Environmental Engineering, Graduate Program, Georgia Institute of Technology, Atlanta, GA 30332-0355 404.894.2246 (Phone) • 404.385.0571 (Fax) • gradinfo@ce.gatech.edu (Email) • http://ce.gatech.edu/academics/graduate For more information, please contact Carol Maddox at 404.894.2282 or visit our website at http://ce.gatech.edu/research/geosystems


Graduate Studies

Structural Engineering, Mechanics, and Materials STRUCTURAL ENGINEERING, MECHANICS AND MATERIALS

offers graduate instruction and research in structural analysis and design, behavior of structural systems, earthquake engineering, engineering science and mechanics, high-performance materials, computer-aided engineering, and intelligent engineering learning environments. The faculty, students, and staff are encouraged to form partnerships to create an environment that fosters learning, discovery, and creativity. The faculty are leaders in their respective fields and are committed to developing in their students the skills needed to be successful in the structural engineering profession. The program’s academic and research activities have earned an international reputation for excellence in areas such as creative use of advanced structural materials and composite systems to improve the infrastructure, earthquake engineering, computer-aided structural engineering software that is used by hundreds of companies worldwide; cladding effects on, and hybrid control of, the response of tall buildings to earthquake and wind; steel connection design and behavior; and structural reliability and risk assessment. Opportunities exist for students to become involved in research activities that promote multidisciplinary solutions to civil engineering problems of national and international importance.

Lateral stability tests of reinforced and prestressed concrete beams.

FACILITIES

RESEARCH AREAS • Auto-adaptive Materials • Computational Mechanics and Structural Analysis • Computer-Aided Structural Engineering (GTSTRUDL) • Durability of Construction Materials • Earthquake Engineering • Engineering Learning Environments • High-performance Concrete • High-performance Steel • Horizontally Curved Bridges • Industrial Buildings • Masonry Structures • Nano/Microstructure of Cement-based Materials • Polymeric Composite Materials • Protective Systems • Quantitative Nondestructive Evaluation • Rehabilitation of Structural Systems • Reliable Engineering Computing • Risk Analysis • Seismic Hazard Mitigation • Smart Materials and Structures • Solid Mechanics in Small Scales and Geometric Mechanics • Steel Connections • Structural Control • Structural Health Monitoring • Structural Reliability

The School of Civil and Environmental Engineering at Georgia Tech is equipped with state-ofthe-art laboratories and instruments, appropriate for all aspects of modern structural engineering and structural mechanics and materials research. Some of these are: • An 18,000 sq ft Structures and Materials Laboratory with an 8,000 sq ft strong floor, an L-shaped reaction wall with capacities of 100 to 300 kips, and two 30-ton-capacity cranes. • A broad range of universal testing machines, with capacity to 400 kips • Specialized facilities for mechanical testing with infra-red thermography and photoelastic stress/ strain analysis • A nondestructive evaluation/optics laboratory • A laser scanning confocal microscope • Numerous high-performance workstations equipped with state-of-the-art software in structural engineering and mechanics.

Full-scale testing of unreinforced masonary building.

Deformation map showing microstructure and strain in lightweight aggregate concrete undergoing creep.

Students prepare test samples of Cenocell, a new material made from coal ash.

3D finite element modeling and simulation using GT STRUDL software.

Fiber optic laser interferometer for structural damage detection.

Use of fiber reinforced polymer deck panels for rapid repair of bridge structures.

‘Smart’ wireless sensing device for structural health monitoring and control.

School of Civil and Environmental Engineering | Georgia Institute of Technology | http://www.ce.gatech.edu


Graduate Studies

Structural Engineering, Mechanics, and Materials SELECTED COURSES

• Advanced Applied Mathematics in Engineering • Advanced Dynamics and Smart Structures • Advanced Mechanics of Composites • Advanced Strength of Materials • Computational Methods in Mechanics • Damage, Failure and Durability of Composite Materials • Design by Inelastic Analysis • Design of Polymer Composite Structures • Durability of Cement-based Materials • Earthquake Engineering • Engineering Program Methods • Experimental Stress Analysis • Finite Element Method of Structural Analysis • Manufacturing of Composites • Materials Science of Concrete • Matrix Structural Analysis • Nonlinear Design of Frame Structures • Nonlinear Finite Element Analysis • Plasticity and Viscoelasticity • Prestressed Concrete • Random Vibration • Rehabilitation of Existing Structures • Reinforced Concrete Members • Reinforced Concrete Slab Systems • Structural Dynamics • Structural Modeling • Structural Reliability • Structural Steel Design • Structural Systems • Theory of Elastic Stability • Wave Propagation in Solids

FACULTY

Nelson C. Baker, Ph.D., Associate Professor

Intelligent learning environments for engineering; applications of artificial intelligence and other computerbased techniques to solve engineering problems; and robotic applications to civil engineering.

Reginald DesRoches, Ph.D., Associate Chair and Professor

Auto-adaptive materials; earthquake engineering; structural dynamics; impact dynamics; design and analysis of bridge structures; protective systems; structural applications of smart materials.

Mulalo Doyoyo, Ph.D., Assistant Professor

Ultralight and ‘green’ materials, structures, and systems; micro-assembled structures, including lattice materials; development of lightweight materials with non-equilibrium microstructures.

Bruce R. Ellingwood, Ph.D., The Raymond Allen Jones Chair in Civil Engineering, College of Engineering Distinguished Professor

Structural reliability; probability-based design; structural loads; natural hazards; load combinations analysis; abnormal loads and progressive collapse; and probabilistic risk analysis.

Leroy Z. Emkin, Ph.D., Professor

Matrix analysis; numerical methods; design of steel structures; structural optimization; computer applications; advanced computer programming; large-scale application software development; and computeraided engineering.

Barry J. Goodno, Ph.D., Professor

Earthquake engineering; structural dynamics; matrix structural analysis; hybrid control of structures; influence of nonstructural components on building response; vibrations; finite element analysis.

Rami Haj-Ali, Ph.D., Professor

Computational mechanics; nonlinear structural analysis; damage mechanics; constitutive models; micromechanics of composite materials; fracture mechanics; nonlinear finite elements; and articial neural networks in engineering applications. Nanoindents in a nano-engineered, fiber-reinforced, ultra-high performance cementitious material.

Laurence J. Jacobs, Ph.D., Associate Dean and Professor

Quantitative nondestructive evaluation of civil engineering materials; wave propagation in solids, emphasizing guided waves, nonlinear methods and heterogeneous materials; signal processing techniques applied to nondestructive evaluation; and development of acoustic sensors for condition monitoring of structural components.

Lawrence F. Kahn, Ph.D., Professor

Structural concrete and masonry; high performance concrete for prestressed concrete bridges; self-compacting concrete; repair and rehabilitation of bridges and buildings; earthquake resistant design and retrofit.

Kimberly E. Kurtis, Ph.D., Associate Professor

Nano/microstructure, properties, and durability of cement-based materials; development of novel methods for multiscale characterization of infrastructure materials; high performance concrete; fiber-cement composites; applications of nondestructive evaluation methods to cement-based materials.

Roberto T. Leon, Ph.D., Professor

Behavior and design of steel and composite connections; seismic design of steel-braced frames and frames with partially restrained connections; seismic behavior of bridges; serviceability of composite floors; high performance materials.

Stanley D. Lindsey, Ph.D., Professor of the Practice

Concrete and steel structural analysis; structural design; distributed education.

Rafi L. Muhanna, Ph. D., Associate Professor

Computational solid and structural mechanics; uncertainty modeling; reliable engineering computing; structural reliability; finite elements.

David W. Scott, Ph.D., Associate Professor

Design of structures constructed using high performance materials; repair and strengthening of structures using advanced materials and technolgies; blast response of structures strengthened using FRP materials; viscoelastic characterization of polymeric materials; structural monitoring and damage detection.

Yang Wang, Ph.D., Assistant Professor

Structural health monitoring and damage detection; optimal decentralized structural control; smart materials and structures; wireless sensor network; structural dynamics and earthquake engineering.

Donald W. White, Ph.D., Professor

Computational mechanics; numerical methods; structural stability; steel structures; computeraided engineering.

Kenneth M. Will, Ph.D., Associate Professor Finite element analysis; structural stability; numerical techniques; computer graphics and visualization; offshore structures; and computeraided engineering.

Arash Yavari, Ph.D., Assistant Professor

Solid mechanics in small scales; ferroelectrics; magnetoelastic and electroealstic interactions; lattice theories of solids; geometric continuum mechanics; configurational forces; and fractal fracture mechanics.

Abdul-Hamid Zureick, Ph.D., Group Leader and Professor

High-performance fiber-reinforced polymeric composite materials and structural systems; structural stability; design of steel structures; structural optimization; bridge structures; anisotropic elasticity.

School of Civil and Environmental Engineering, Graduate Program, Georgia Institute of Technology, Atlanta, GA 30332-0355 404.894.2246 (Phone) • 404.385.0571 (Fax) • gradinfo@ce.gatech.edu (Email) • http://ce.gatech.edu/academics/graduate For more information, please contact Carol Maddox at 404.894.2282


Graduate Studies

Transportation Systems Engineering TRANSPORTATION SYSTEMS are the building blocks of modern society. Efficient and safe movement of information, people, goods, and services ensures a thriving economy and such mobility improves quality of life. However, transportation systems by their very nature also affect the environment through operations, construction, and maintenance of transportation facilities, and through the travel behaviors they encourage. The study of transportation therefore must not only focus on efficient and safe design and operations but also on the link between travel behavior, urban form, and environmental quality. The transportation systems graduate program in the School of Civil and Environmental Engineering (CEE) at Georgia Tech provides in-depth of knowledge on the design and performance of transportation systems, encouraging students to add breadth to their education by understanding the environmental, institutional, and societal context in which these systems operate. The technical core courses include urban transportation planning, traffic engineering, design of highway and transit facilities, transportation administration, and statistical analysis. Students supplement these courses with technical electives and are encouraged to take courses from other academic units at Georgia Tech. Many students choose to enroll in the dual degree program in City Planning and Civil and Environmental Engineering.

UNIVERSITY TRANSPORTATION CENTER Georgia Tech is home to a U.S. Department of Transportation (DOT) University Transportation Center (UTC). The UTC at Georgia Tech works with local, state, and regional agencies to provide leadership on research, education and technology transfer to address issues related to transportation system productivity (including all modes of passenger and freight travel), economic growth, and finance. The U.S. faces critical challenges to preserve and enhance its urban and regional transportation systems and its its international goods movement infrastructure.With substantial increases in demand, these systems require both public and political attention, as well as consideration of innovative finance strategies. The UTC is aligned with the Georgia Transportation Institute (GTI). GTI was originally established in 2000 as a focal point to coordinate transportation research in the State of Georgia. As such, GTI includes several partner universities within the state, and conducts research, development, education, and technology transfer pertaining to all forms of transportation. Working through the GTI, research sponsors are able to access all of the resources available within the Institute as well as other research institutions across the state. Georgia Tech conducts approximately $6M in transportation-related research on an annual basis.

NATIONALLY RANKED Georgia Institute of Technology is consistently the only technological university ranked in U.S. News & World Report’s listing of America’s top ten public universities. U.S. News & World Report also ranks Georgia Tech’s graduate and undergraduate civil engineering programs as No. 3 in the nation. Diverse: Issues in Higher Education ranks Georgia Tech as No. 1 in engineering doctoral degrees awarded to minority students. The diversity and strength of these programs provide students with the unique opportunity to specialize in many areas of concentration. Environmental impacts, freight planning, intermodal transportation, geographic information systems, intersection operations, modal emissions modeling, infrastructure/asset management, traffic flow theory, and travel behavior analysis reflect the broad range of expertise among transportation systems faculty and researchers in the School. The faculty expects the graduates of the program to be well educated on the latest concepts and technologies in the transportation community. ATLANTA AREA Georgia Tech students work with some of the leading transportation researchers in the country, and Atlanta provides a living transportation laboratory. Students study first-hand what makes a good transportation system work. Frequent site visits to the Georgia DOT’s Transportation Management Center, the world’s busiest airport, intermodal freight yards, the transit control center, highway construction sites, and nearby ports bring students in direct contact with complex systems. Throughout the year, various activities are also organized by the local chapter of the Institute of Transportation Engineers (ITE). Recent outings include white water rafting in Tennessee, a picnic luncheon with representatives from a local consulting firms, and the faculty verses students pool tournament.

School of Civil and Environmental Engineering | Georgia Institute of Technology | http://www.ce.gatech.edu


Transportation Systems Engineering RESEARCH

The transportation faculty in the School of Civil and Environmental Engineering is involved in a wide range of research topics. Recent projects include new planning methods for transportation investment, analysis of truck only toll lanes, enhanced methods for monitoring and modeling travel behavior, analysis of driver safety in the conversion of carpool to high-occupancy toll lanes, analysis of airline passenger behavior, application of advanced technologies in the transportation system, the development of new models for estimating vehicle emissions, improved concepts for intermodal transportation, sustainable development and transportation, application of geographic information systems in program management, and the development of decision support tools for infrastructure management. Many of these projects are interdisciplinary in nature and involve faculty and students from other academic programs. Research Facilities include a unique Traffic Signal Lab, Instrumented Vehicle Lab, and an Intelligent Transportation Systems (ITS) Laboratory.

SELECTED COURSES

• Computer-Aided Site Engineering & Road Design • Construction Engineering Management • Construction Safety and Health • Discrete Choice Analysis • Environmental Impact Analysis • Freight Planning • Geometric Design • GIS in Transportation • Infrastructure Management: IT Applications • Infrastructure Systems • Multimodal Transportation Systems • Pavement Technology • Project Front End Planning and Monitoring • Signalized Intersections & Networks • Simulation Models in Transportation • Spatial Analysis • Statistical Analysis of Travel Demand • Traffic Engineering • Traffic Flow Theory • Transportation Administration & Policy Analysis • Transportation Energy & Air Quality • Transportation Energy Infrastructure Management • Transit Systems Planning & Design • Urban Transportation Planning

Graduate Studies FACULTY

Adjo Amekudzi, PhD, Associate Professor Civil infrastructure/asset management, infrastructure decision support systems, sustainable infrastructure systems. Ioannis Brilakis, PhD, Assistant Professor Computing and information technologies for the architecture, engineering, construction, and facilities management industries. Sensing and data collection for civil infrastructure development; visual pattern recognition for construction site multimedia data analysis, classification, retrieval and processing. Laurie Garrow, PhD, Associate Professor Travel behavior analysis, application and estimation of advanced discrete choice models, and airline passenger behavior. Randall Guensler, PhD, Professor Motor vehicle activity, instrumented vehicle deployment, transportation planning, vehicle emissions, air quality modeling, environmental impact assessment, and environmental policy analysis.

Jochen Teizer, PhD, Assistant Professor Construction and infrastructure, laser range sensing, 3D modeling, RFID and wireless resource tracking, real-time pro-active safety, project monitoring, information technologies and management. Yichang James Tsai, PhD, PE, Associate Professor Optimization of spatial sensing and information technology, GPS/GIS, image/laser sign processing, infrastructure/asset management, pavement technology, safety and security, and port logistics. Kari E Watkins, PhD, PE Assistant Professor Public transit planning and operations; complete streets design; mode choice decision-making; and information technology in transportation.

Michael P. Hunter, PhD, Associate Professor Traffic operations and design, signal optimization, safety, and transportation simulation. Jorge Laval, PhD, Assistant Professor Traffic flow theory and simulation, freeway operations, queuing theory and network modeling. John Z. Luh, PhD, PE, Adjunct Professor Highway planning and design, freeway interchange planning and design, ITS design, traffic signal design, and traffic engineering. John D. Leonard II, PhD, Associate Dean Advanced technology applications, ITS, traffic operations, traffic engineering, traffic safety, computer simulation, network modeling, computer programming, and systems analysis. Michael D. Meyer, PhD, PE, Professor Transportation planning, multimodal evaluation, policy analysis, mass transit planning, institutional analysis and project implementation, public works economics and finance, environmental impact analysis, sustainable development, and engineering design. Michael O. Rodgers, PhD, Adjunct Professor, GTRI Fellow and Principal Engineer, GTRI Air quality and transportation, transportation modeling and simulation, mobile source emissions modeling, remote sensing of vehicle emissions, transportation statistics. Frank Southworth, PhD, Principal Research Scientist Freight and passenger transportation planning, public transit planning and evaluation, evacuation planning, land use transportation interaction and sustainable transportation systems, and transportation geography.

School of Civil and Environmental Engineering, Graduate Program, Georgia Institute of Technology, Atlanta, GA 30332-0355 404.894.2246 (Phone) • 404.385.0571 (Fax) • gradinfo@ce.gatech.edu (Email) • http://www.ce.gatech.edu/academics/graduate (Web) For more information concerning the transportation systems program, contact Michael Meyer at michael.meyer@ce.gatech.edu.


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.