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Liquefaction Susceptibility: Proposed New York City Building Code Revision, Robert Alperstein, Carl Costantino, Peter Edinger, Michael Greenman, Magued Iskander, Stephen K. Law, Sam Leifer, George Mylonakis, Sissy Nikolaou, Ray Sandiford, Thomas Thomann

International Conference on Case Histories in Geotechnical Engineering

A simplified procedure is presented for evaluating liquefaction susceptibility of cohesionless saturated soils based on available technology. In 2001, a Committee of engineers working in the New York City (NYC) area was formed under the direction of the first Author, to review the liquefaction aspects of the 1995 New York City Building Code. The purpose was to gain consensus on a possible revision and augmentation of the exisiting regulations as part of the ongoing Code review by the Structural Engineers Association of New York (SEAoNY). This article summarizes the recommendations of the Committee, as compiled in 2002. The following topics …

Past Proceedings: 2nd International Conference On Case Histories In Geotechnical Engineering (1988), Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

Conference Schedule, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

Observations Of Site Amplification And Liquefaction In The Jun 23, 2001, Southern Peru Earthquake, Adrian Rodriguez-Marek, Joseph Wartman, Pedro C. Repetto, Jennifer L. Williams

International Conference on Case Histories in Geotechnical Engineering

The M_w 8.4 Southern Peru Earthquake of June 23, 2001 caused extensive damage in a widespread area in southern Peru and northern Chile, including several important population centers. Damage in some of these cities was correlated with local soil conditions and topography, suggesting the influence of local site amplification effects in damage distributions. The earthquake caused numerous instances of other types of geotechnical related ground failures, including liquefaction and lateral spreads in river valleys, seismic compression of highway fills, and slope failures. This work focuses on case histories documenting site amplification and liquefaction in the Southern Peru earthquake. Among …

Case History Of An Open-Pit Coalmine Loaded By Artesian Water Pressure, Marta Dolezalova, Ivo Hladik, Vlasta Zemanova

International Conference on Case Histories in Geotechnical Engineering

Jiri Open-Pit Coalmine with highly productive coal measure is located in a famous and protected spa region with artesian thermal springs. A pressurized aquifer underlies the mine and the mining advance is limited by hydraulic fracturing hazard, which could result not only in flooding the mine, but also in dangerous changes of the hydro-geological conditions of the whole region. To prevent this hazard, the aquifer pressure has been reduced by flowing wells. To estimate the feasibility of the mining advance at a minimum pressure head reduction, i.e. at minimum environmental impact, an interactive procedure with numerical models calibrated according to …

Environmental Geotechnics: Two Case Histories, James K. Mitchell, Richard A. Mitchell

International Conference on Case Histories in Geotechnical Engineering

About 20 million gallons of liquid hazardous and toxic industrial wastes were disposed at the Hardage Site, about 35 miles southsouthwest of Oklahoma City, from 1972 to 1980. Following Superfund designation of this site by the EPA, identification of a few hundred companies as Potentially Responsible Parties, and a court ordered excavate, incinerate, and re-entomb remedy for its remediation, many of the companies joined to form the Hardage Site Remedy Corporation (HSRC) for implementation of design, construction, operation, and maintenance of the facility. With the aid of a panel comprised of experts in the disciplines relevant to contaminated site remediation, …

Microzonation Studies For Delhi, Jabalpur & Dehradun As Impacted By Bhuj Earthquake, V. K. Mathur

International Conference on Case Histories in Geotechnical Engineering

History of earthquakes in our country demonstrate vulnerability to seismic hazards. The recent past, devastating earthquakes in urban areas in India causing heavy economical losses in terms of loss of life, property, disruption of services and damage to environment have been of great concern; the experiences have prompted to carry out in-depth studies and come out with solutions and policies which will go a long way in minimizing the damages caused by seismic ground motions. In this context, microzonation of urban areas have assumed new dimensions. Delhi, the capital city of India has a long seismic history and is being …

Past Proceedings: Fifth International Conference On Case Histories In Geotechnical Engineering, New York (2004), Multiple Authors

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

No abstract provided.

Meet Our Authors And Speakers, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

Geotechnical Investigations For Design Of Foundations For Erosion And Flood Control Structures At Unwana Beach, Afikpo, Ebonyi State, South-Eastern Nigeria, So-Ngo Clifford Teme, Patrick Omorodion Youdeowei

International Conference on Case Histories in Geotechnical Engineering

Erosion occasioned by annual floods along the Cross River at Unwana Beach, Afikpo, situated on latitude 8° 00’ 00’’ North of the Equator and longitude 5° 40’ 15’’ East of the Greenwich Meridian, has threatened the location of a Water Pumping and Treatment Station nearby. Geotechnical investigations carried out using the Shell-and-Auger rig along the shoreline of the Unwana Beach indicated that the subsurface consists of between 3.00 to 8.00 meters of Yellowish brown silty clay layer (CL) underlain by about 3.00 meters of Dark, clayey sands (SC). These are further underlain by between 0.00 – 4.00 meters of Reddish …

Stabilization Of The Dividing Wall At A Drinking Water Reservoir, Ingo Fox, Burjor Kharivala

International Conference on Case Histories in Geotechnical Engineering

The Reservoir is a component of the water supply system of a major city in the northeastern United States. The reservoir receives water conveyed by aqueducts and pressure tunnels from several watershed reservoirs. It is a balancing reservoir that regulates water flow and maintains the elevation head needed for the water tunnel distribution system to the south of the reservoir, which services the city inhabitants. The reservoir water surface is approximately 90 acres, and is contained by a man-made rim earth embankment, 40 feet in average height. The reservoir, which has an oval shape, is lined with a paneled concrete …

Geotechnical Investigation And Rock Characterization For The East Side Access Project’S Manhattan Segment, Subal Sarkar, Amitabha Mukherjee, Aomar Benslimane, Carroll Stewart

International Conference on Case Histories in Geotechnical Engineering

The East Side Access Project to connect the Long Island Railroad to New York’s Grand Central Terminal on the east side of Manhattan will be one of the largest tunneling projects ever undertaken in New York. A series of tunnels and caverns will be excavated in rock to connect the existing 63rd Street tunnels to twin three-level caverns beneath Grand Central Terminal. The site investigation for the Manhattan Segment comprised archive searches, rock exposure mapping, geophysical surveys, test borings in soil and rock, in-situ testing, groundwater monitoring, and laboratory testing of soil, water and rock. Approximately 200 borings have been …

Gsbs News, Spring 2003-2004, Graduate School Of Biomedical Sciences, University Of Texas Health Science Center At Houston/M.D. Anderson Cancer Center

GSBS News

No abstract provided.

Towards A General Methodology For Designing Sub-Noise Measurement Procedures, Roberto Osegueda, George R. Keller, Scott A. Starks, R. Araiza, Dm. Bizyaev, Vladik Kreinovich

Departmental Technical Reports (CS)

In many practical situations, the measurement result z depends not only on the measured value x, but also on the parameters s describing the experiment's setting and on the values of some auxiliary quantities y; the dependence z=f(x,s,y) of z on x, s, and y is usually known. In the ideal case when we know the exact value of the auxiliary parameter y, we can solve the above equation and find the desired value x. In many real-life situations, we only know y with some uncertainty, and this uncertainty leads to additional uncertainty in x.

If we are trying to …

The Airline Quality Rating 2004, Brent D. Bowen, Dean Headley, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 04-1

The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline quality on combined multiple performance criteria. This current report, the Airline Quality Rating 2004, reflects monthly Airline Quality Rating scores for 2003. AQR scores far the calendar year 2003 are based on 15 elements in four major areas that focus on airline performance aspects important to air travel consumers.

The Airline Quality Rating 2004 is a summary of month-by-month quality ratings for U.S. airlines that have at least 1% of domestic passenger volume during 2003. Using the …

Santa Clara Magazine, Volume 45 Number 4, Spring 2004, Santa Clara University

Santa Clara Magazine

8 - TOP TEACHERS By Elizabeth Kelley Gillogly '93-Meet three SCU professors who received University awards for teaching excellence and curriculum innovations.

10 - BLAZING THE TRAIL By Victoria Hendel De La O. There are many unique challenges and rewards for the hundreds of first-generation college students at SCU.

14 - THE SCU DIFFERENCE By Margaret Avritt. The value of an SCU education goes beyond statistics and scores. Students at this university have experiences that engage and transform them.

18 - MIND OVER MONEY By Hersh Shefrin and Meir Statman. Two SCU professors of finance explore how psychology can help …

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 20, Number 6, April 2004, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

A six page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.

An Electromagnetic Model For Evaluating Temporal Water Content Distribution And Movement In Cyclically Soaked Mortar, Shanup Peer, K. E. Kurtis, R. Zoughi

Electrical and Computer Engineering Faculty Research & Creative Works

Evaluation of water distribution and its temporal movement in cement-based materials is important for assessing cement hydration, curing, and long-term performance. From a practical standpoint, it is also important to obtain this information nondestructively. Near-field microwave nondestructive evaluation methods have proven effective for evaluation of cement-based materials for their various mixture properties, including the detection of salt added to the mixing water and chloride ions entering these materials through exposure to salt water solutions. Electromagnetic modeling of the interaction of microwave signals with moist cement-based materials can provide the necessary insight to evaluate water content distribution and movement in these …

Bs News

Building Services Engineering

No abstract provided.

Inside Unlv, Gian Galassi, Carol C. Harter, Jeffrey Koep

Inside UNLV

No abstract provided.

The Relationship Of Project Team Attributes To Project Interim Performance, Vickie S. Parsons

Engineering Management & Systems Engineering Theses & Dissertations

The factors associated with project success, or failure, have not been conclusively resolved in the project management literature. The purpose of this research was to investigate the relationship of project team attributes and interim project performance using a statistical research design. An abundance of research has focused solely on the importance of technical project components as they relate to cost, schedule, or technical performance. However, research into internal team attributes has been sporadic and, generally, associated with subjective measures of project performance or less than optimal statistical techniques. Prior assessment of project performance has also been concentrated at project completion. …

Structural Health Monitoring And Damage Detection Using An Intelligent Parameter Varying (Ipv) Technique, Soheil Saadat, Mohammad N. Noori, Gregory D. Buckner, Tadatoshi Furukawa, Yoshiyuki Suzuki

Office of the Dean (CENG) Scholarship

Most structural health monitoring and damage detection strategies utilize dynamic response information to identify the existence, location, and magnitude of damage. Traditional model-based techniques seek to identify parametric changes in a linear dynamic model, while non-model-based techniques focus on changes in the temporal and frequency characteristics of the system response. Because restoring forces in base-excited structures can exhibit highly non-linear characteristics, non-linear model-based approaches may be better suited for reliable health monitoring and damage detection. This paper presents the application of a novel intelligent parameter varying (IPV) modeling and system identification technique, developed by the authors, to detect damage in …

Analysis And Forecasting Of U.S. Navy Operating And Support (O&S) Costs For Rotary Aircraft, Christopher J. Wilkes

Theses and Dissertations

This research explores forecasting techniques to estimate the Cost per Flying Hour (CPFH) for Navy rotary aircraft. Three separate forecasting techniques were evaluated to better predict the CPFH for better estimating and budgeting by the U.S. Navy. The process begins by empirically analyzing Operating & Support cost categories for each helicopter. Trends were examined in CPFH. For forecasting purposes, actual CPFH figures were compiled from 1997 to 2003 for the CH-46D, the CH-53D, the MH-53E, the SH-60F, the UH-1N, and the UH-3H helicopters. The forecasting techniques explored were the 3-year moving average, the single exponential smoothing method, and Holt's linear …

An Analysis Of Electromagnetic Interference (Emi) Of Ultra Wideband(Uwb) And Ieee 802.11a Wireless Local Area Network (Wlan) Employing Orthogonal Frequency Division Multiplexing (Ofdm), Juan Lopez Jr.

Theses and Dissertations

Military communications require the rapid deployment of mobile, high-bandwidth systems. These systems must provide anytime, anywhere capabilities with minimal interference to existing military, private, and commercial communications. Ultra Wideband (UWB) technology is being advanced as the next generation radio technology and has the potential to revolutionize indoor wireless communications. The ability of UWB to mitigate multipath fading, provide high-throughput data rates (e.g., greater than 100 Mbps), provide excellent signal penetration (e.g., through walls), and low implementation costs makes it an ideal technology for a wide range of private and public sector applications. Preliminary UWB studies conducted by The Institute for …

Quakesat: Low Cost University/Commercial Nanosatellite Collaboration, Robert J. Twiggs, James Cutler, Eric Tapio, Allen Lorenz, Tom Bleier

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Tom Bleier, James Cutler, Eric Tapio, Allen Lorenz, and Bob Twiggs titled "QuakeSat:Low CostUniversity/Commercial Nanosatellite Collaboration" from March 10, 2004.

Keys To Successful Implementation And Sustainment Of Managed Maintenance For Healthcare Facilities, Elizabeth A. Waggoner

Theses and Dissertations

Health care providers are faced with two critical issues in today's evolving marketplace: lowering operational costs and achieving more efficient, cost-effective methods to deliver high quality patient care. The rising costs of healthcare and decreasing budgets have placed additional strain on the United States Air Force Medical Service to aggressively lower its facilities' costs. With fewer funds and less personnel, the Air Force medical service is re-evaluating its current maintenance outsourcing implementation practices and reexamining how these strategies might be implemented and sustained more successfully. This research offers some of the foundational needs for designing, implementing and sustaining any type …

Investigating The Optimal Management Strategy For A Healthcare Facility Maintenance Program, Daria J. Gaillard

Theses and Dissertations

Reacting to the need to transform and the increasing pressure to outsource all non-core activities, Air Force Material Command Surgeon General discontinued its previous use of full service contracts with original equipment manufacturers and adopted a relatively new maintenance outsourcing strategy: strategic partnering with an equipment management firm. The objective of this study is to create a decision-model for selecting the optimal management strategy for a healthcare organization's facility maintenance program. This study used personal interviews with facility management personnel from MAJCOMs to collect and analyze data. This study offers a re-conceptualized framework for viewing and understanding the various maintenance …

Carbon Fiber For Air Filtration, Marit Jagtoyen, Francis J. Derbyshire, Rosemary Anne Alexander Derbyshire

Center for Applied Energy Research Faculty Patents

Described are filters containing free-activated carbon fibers or activated carbon fibers in the form of a composite used for filtering a variety of contaminants, including pathogens, from air. These filters can provide effective and efficient removal of contaminants from air, requiring only short contact time between the air being filtered and the filter itself, with only a minimum pressure drop across the filter. The characteristics of these filters allow for effective filtration with only thin filter layers being required. The process of filtering air utilizing these filters is also disclosed.

Decision Analysis With Value Focused Thinking As A Methodology To Assess Air Force Officer Retention Alternatives, Sang-Ho Moon

Theses and Dissertations

Many countries realize the importance of the retention of qualified military personnel, and have tried to solve this problem using various methods. Nevertheless, the effects of those methods have not been determined or proven yet. The military retention problem is closely related to each individual's separation decision from the military. The characteristics of this decision are multi-objective and highly subjective. Accordingly, the effectiveness of various methods is heavily dependant on the value set of each individual. Decision Analysis (DA) using Value Focused Thinking (VFT) can be an excellent process to deal with this decision. Also, the data can reflect the …

Flight Physician - March, 2004, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

A sixteen page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.