Tulsa, OK, United States

University of Tulsa

Tulsa, OK, United States

The University of Tulsa is a private university located in Tulsa, Oklahoma, United States. The university is historically affiliated with the Presbyterian Church. The university offers programs in petroleum engineering, English, computer science, natural science, Clinical and Industrial/Organizational Psychology, and engineering disciplines. Its faculty includes the famous Russian poet Yevgeny Yevtushenko, psychologist Robert Hogan, political scientist Robert Donaldson. The campus's design is predominantly English Gothic, and the university manages the Gilcrease Museum, which includes one of the largest collections of American Western art in the world.TU's athletic teams compete in Division I of the NCAA as members of the American Athletic Conference and are collectively known as the Tulsa Golden Hurricane. Wikipedia.

Time filter
Source Type

Bikkina P.K.,University of Tulsa
International Journal of Greenhouse Gas Control | Year: 2011

This work presents contact angle measurements for CO2-water-quartz/calcite systems at general sequestration pressure and temperature conditions (200-3000psig and 77-122°F). The effect of drop volume, repeated exposure of the substrates to dense water saturated CO2, pressure and temperature on the contact angles is examined. In the 1st measurement cycle, the contact angles for the quartz substrate varied from 46 to 48° and 47 to 46° for gaseous (water saturated) CO2 and liquid (water saturated) CO2 respectively, at 77°F. For calcite substrate, these values varied from 45 to 48° and 42 to 40°, respectively. Remarkably, this work highlights a characteristic permanent shift in the contact angle data with repeated exposure to dense, water saturated, CO2. The contact angle data trends after repeated exposure to the dense, water saturated CO2 varied from 89 to 91° and 85 to 80° for the quartz substrate for gaseous (water saturated) CO2 and liquid (water saturated) CO2 respectively, at 77°F. For calcite substrates, these values varied from 60 to 59° and 54 to 48°, respectively. This important observation has serious implications towards the design and safety issues, as a permanent positive contact angle shift indicates lower CO2 retention capabilities of sequestration sites due to a reduction in the capillary pressure. It is further confirmed that the permanent shift in the contact angle is due to surface phenomena. With an increase in temperature (from 77 to 122°F), the contact angle shift is reduced from about 45° to about 20° for quartz substrates. Other observations in the contact angle data with respect to pressure are in good agreement with the trends reported in the literature. © 2011 Elsevier Ltd.

University of Tulsa | Date: 2016-07-22

A wedge floatation device includes a bottom section and a sidewall positioned around a perimeter of the bottom section to contain a liquid within the wedge floatation device. The bottom section includes an outer portion and a plateau portion centrally positioned in the bottom section. The plateau portion is raised to a height above the outer portion and below a top edge of the sidewall. The plateau portion includes a groove that is substantially concentric with an outer perimeter of the plateau portion. The groove is designed to dampen the velocity of a liquid directed from the outer perimeter of the plateau portion to a center of the plateau portion. The bottom section further includes a transition portion extending between the outer portion and the plateau portion. The transition portion surrounds the outer perimeter of the plateau portion. The outer portion surrounds a perimeter of the transition portion.

University of Tulsa | Date: 2016-09-12

The present invention provides for analysis of cyber-physical systems with relation to compliance requirements such as regulatory compliance, maintenance compliance and safety compliance. Generally, the invention provides for a set of paths from an initial state to an end state, and analyzing the paths to determine which ones contain a violation state. Based on the resultant paths test scripts are generated. Additionally, other compliance related procedures can be performed utilizing the path analysis.

Agency: NSF | Branch: Continuing grant | Program: | Phase: FED CYBER SERV: SCHLAR FOR SER | Award Amount: 3.43M | Year: 2015

The University of Tulsa proposes to add four new cohorts of undergraduate and graduate students to their existing CyberCorps(R) Scholarship for Service (SFS) program in cybersecurity with a strong background in computer science, engineering, business and law. The program integrates rigorous, hands-on learning with research, professional development and outreach activities. The students will serve as summer interns to gain practical experience and will join federal agencies or other eligible entities upon graduation. The Tulsa Program offers multiple technical and interdisciplinary tracks, each characterized by a focused, yet flexible, program of study. The intense MacGyver Track imparts reverse engineering and cyber operations skills geared for the intelligence community. Other tracks prepare students for research, operations and project management. The interdisciplinary M.B.A. and Law Tracks combine business and law classes, respectively, with six cyber security and systems courses. The common thread is the Teaching Hospital Model -- hands-on courses involving real-world projects with law enforcement, the intelligence community and critical infrastructure owners and operators, and strong collaboration with embedded government personnel.

The program components are designed to have a broad and lasting impact. Existing efforts to engage members of underrepresented groups and non-traditional students will be intensified, and arrangements to accept community college graduates will be expanded. CyberCorps(R) students will collaborate on real-world projects with federal agency personnel to gain practical experience and enhance internship and job placement prospects. Other innovative aspects of the proposal are (1) diverse studies, ranging from computer science and chemical engineering to business and law, all built around a strong cybersecurity core; (2) flexible program components that prepare students for careers in intelligence, research, operations, project management, enterprise security, and law and policy; and (3) integration of traditional, non-traditional and underrepresented students in an inclusive and collaborative learning culture. The project will also offer sustained mentoring and student involvement in community service and outreach activities.

Agency: NSF | Branch: Fellowship | Program: | Phase: GRADUATE RESEARCH FELLOWSHIPS | Award Amount: 238.00K | Year: 2015

The National Science Foundation (NSF) Graduate Research Fellowship Program (GRFP) is a highly competitive, federal fellowship program. GRFP helps ensure the vitality and diversity of the scientific and engineering workforce of the United States. The program recognizes and supports outstanding graduate students who are pursuing research-based masters and doctoral degrees in science, technology, engineering, and mathematics (STEM) and in STEM education. The GRFP provides three years of financial support for the graduate education of individuals who have demonstrated their potential for significant research achievements in STEM and STEM education. This award supports the NSF Graduate Fellows pursuing graduate education at this GRFP institution.

Agency: NSF | Branch: Standard Grant | Program: | Phase: CYBER-PHYSICAL SYSTEMS (CPS) | Award Amount: 170.00K | Year: 2016

Heavy vehicles, such as trucks and buses, are part of the US critical infrastructure and carry out a significant portion of commercial and private business operations. Little effort has been invested in cyber security for these assets. If an adversary gains access to the vehicles Controller Area Network (CAN), attacks can be launched that can affect critical vehicle electronic components. Traditionally, physical access to a heavy vehicle was required to access the CAN. However, wireless devices are also installed on heavy vehicles, which open trucks and busses to remote wireless cyber attacks. This project explores cyber security vulnerabilities related to wireless devices that communicate on the CAN. For identified threats, researchers determine the proper mitigation strategies, including where and how they are best deployed. To demonstrate potential exploits and subsequent trust in proposed mitigation strategies, this project designs and implements a scalable, high-fidelity test bed using actual heavy vehicle electronic control units, such as engine and brake controllers. The test bed includes built-in mechanisms for remote access and secure information delivery to allow for collaboration among researchers at different sites. The results of the research, including the potential to extend the test bed with other components, can impact cyber security analysis for other industries that use CAN, such as building automation, medical devices, and manufacturing.

The SAE J1939 communication network in heavy vehicles is based on CAN and has open documentation for packet definition and transmission. This openness may be exploited for creating spoofed J1939 messages. Heavy vehicle owners utilize third-party systems, such as remote telematics, that introduce new J1939 enabled modules, which can potentially be subverted by an adversary. This project uses these systems to gain remote access and attack another CAN connected electronic control unit. Packet sniffing is performed as the telematics system connects wirelessly to the CAN to determine if fake packets can be inserted. Research includes examining different designs, configurations, and deployments of intrusion detection systems to best thwart such remote attacks using the developed test bed. One challenge is to develop algorithms that can act in real-time with deployed test bed hardware. Research includes developing scientific strategies to measure the temporal response of the cyber actions in the test bed and the reaction time of any intrusion detection system, so that bounds can be determined based on the ability to conduct a remote cyber operation on a J1939 network.

Agency: NSF | Branch: Standard Grant | Program: | Phase: Integrative Ecologi Physiology | Award Amount: 283.12K | Year: 2016

All living organisms must defend themselves from disease-causing parasites and pathogens to which they are exposed. The typical way that such defense occurs is by resisting the pathogen or parasite, often through an immune response. Resistance by the host is the basis for much of modern medicine, in which the immune response is enhanced or replaced by various therapies. However, another defense is the tolerance of the parasite or pathogen without mounting any resistance, which (under certain circumstances) can be beneficial to the host, in part because tolerance does not require the host to incur the physiological cost of mounting an immune response. Plants are well known to tolerate various pathogens, but the ability of animals to tolerate parasites has only recently been recognized. This project documents how a colonial bird, the cliff swallow, has rapidly evolved (over 30 years) the ability to tolerate large numbers of blood-feeding parasitic bugs. By comparing the effects of these parasites on the birds in the 1980s versus their effects today, insight into conditions that favor the development of tolerance as a parasite defense in a social animal will be gained. The results will have wide relevance to understanding ways that animals (including humans) can potentially minimize the negative effects of parasites and the diseases sometimes associated with those parasites.

Parasite tolerance has been established as a key host defense in plant-parasite systems, but few empirical studies have explored the role of tolerance in animal host-parasite relationships. This research seeks to study the ecology and evolution of tolerance defense strategies against parasites in colonially nesting cliff swallows (Petrochelidon pyrrhonota) and their principal parasite, the swallow bug (Hemiptera: Cimicidae: Oeciacus vicarius). The work builds on a long-term field study and the relatively recent adoption of new nesting sites by cliff swallows where they have come into greater contact with their nest parasites. During the 1980s, bugs exerted severe effects on cliff swallow reproductive success, but subsequent observation suggests that the birds may have evolved greater tolerance to parasitism in the intervening 30 years. This research seeks to establish whether cliff swallows now better tolerate parasites and how the birds? anti-parasite behavior may be changing as a result. The novelty of this work is that it is the first to examine temporal changes in tolerance within a natural population. This research will involve undergraduate students and a postdoctoral scientist, and participation by a community college faculty member will facilitate involvement of urban minority students. Because enhancing tolerance by the host may be more effective in fighting inflammatory and autoimmune diseases than prescribing antibiotics (a strategy that promotes resistance to parasites), this research will encourage non-scientists to think about tolerance as a treatment option.

Agency: NSF | Branch: Standard Grant | Program: | Phase: | Award Amount: 488.37K | Year: 2015

Cyber-physical systems (CPSs) operate nearly all of societys critical infrastructures (e.g., energy, transportation and medicine). In performing mission critical functions, CPSs exhibit hybrid (both discrete and continuous) behavior as they use digital technology to control and monitor physical processes. CPS security analysis is particularly challenging because an attacker can make use of a wide variety of vulnerabilities in the digital elements of the system (e.g., the network), the physical elements of the system, or some combination. This project is developing a mathematical and computational framework for modeling and analyzing large, complex CPSs to capture their vulnerabilities and the resulting attack paths (steps an attacker might use to disrupt the system).

This project is developing hybrid attack graphs (HAGs) as a mathematical formalism for representing security properties and compound exposures in CPSs. HAGs reflect a functional view of exposures, capturing state transitions over CPSs due to the execution of exploits in either the cyber or physical domains. As such, they offer the potential to comprehensively document a CPS attack surface. The researchers are designing HAG generation algorithms that apply intelligent search and parallelization strategies and creating a suite of web-based tools to cope with the computational burdens of large-scale CPS attack surface modeling. The project is developing an array of analytical methods, refined based on Markov Processes, classic reachability, and other techniques. To provide an experimentation platform for evaluating the projects tools and techniques, the researchers are building a CPS test bed comprised of network-controlled robotic vehicles. The testbed will also provide a competitive learning environment in which to teach students about CPS security principles in a fun and engaging manner.

Agency: NSF | Branch: Standard Grant | Program: | Phase: NSF Research Traineeship (NRT) | Award Amount: 484.52K | Year: 2015

NRT-IGE: Workplace Inspired Approaches for Improving Graduate Student

This National Science Foundation Research Traineeship (NRT) award in the Innovations in Graduate Education (IGE) Track to the University of Tulsa will test the effectiveness of an innovative approach to enhance the professionalism and productivity of engineering graduate students. Graduate school, as it currently exists, enables students to acquire concrete technical skills with admirable efficiency. To complete their preparation as professionals, however, graduate students also need to develop non-technical skills, such as leadership, conflict management, and adaptability. This pilot project will develop a novel professional development system that provides graduate students a mental framework to practice these non-technical skills and uses an online tool to facilitate and track professional development.

The primary goal of this test-bed project will be to develop and assess a novel program that enables the intentional practice of non-technical skills. Intentional practice is a deliberate process where a skill is broken down into parts and there is focus on improving a particular part, frequently with immediate feedback from a coach. This research will answer three central questions: What are the core professional competencies that are essential for successful graduate students? Can approaches developed and validated in workplace settings be adapted to improve graduate student professionalism? Does increased professionalism improve graduate student productivity, retention, and success? These questions will be answered through a set of online assessment tracking tools that will capture student self-assessments and peer and advisor assessments. Students will be mentored on how to make intentional decisions about professional development opportunities and how to develop the ability to be intentional about practicing these professional skills. Qualitative assessments will be coupled to objective measures of student performance, such as productivity and graduation rate, to determine if the competency development approach is successful.

The NSF Research Traineeship (NRT) Program is designed to encourage the development and implementation of bold, new, potentially transformative, and scalable models for STEM graduate education training. The Innovations in Graduate Education Track is dedicated solely to piloting, testing, and evaluating novel, innovative, and potentially transformative approaches to graduate education.

Agency: NSF | Branch: Standard Grant | Program: | Phase: MARINE GEOLOGY AND GEOPHYSICS | Award Amount: 111.23K | Year: 2016

Measurements of volatiles such as carbon dioxide, water, nitrogen and noble gases in submarine basalts from mid-ocean ridges have provided considerable insight into the origin of Earths atmosphere and oceans, and the geologic history of cycling between the surface of the Earth and its interior. However, almost all submarine basalts have lost much of their volatile inventory by degassing when they are erupted, which has led to a major loss of the reliable chemical data needed to identify pristine chemical signatures from Earths mantle. As a result, there is significant uncertainty and controversy in our understanding of the origins of volatiles and their fluxes into and out of the Earth. This research carries out analyses of the very rare occurrences of undegassed mid-ocean ridge basalts to obtain information on the mantle isotopic composition of carbon, nitrogen, hydrogen and noble gases (helium, neon and argon). Collectively, these gases can be used synergistically to better understand how Earths atmosphere and oceans formed and evolved. Mid-ocean ridges are fundamental geologic features of Earths surface, and one of the most intriguing challenges in geosciences is understanding the processes by which they are created and evolve. The chemical and isotopic data resulting from this project are fundamental in this regard, and will provide benchmarks for years to come for models of degassing at ocean ridges and the origin and evolution of Earths volatiles. Broader impacts of the work include funding an institution in Oklahoma, a state that receives comparatively little federal money (i.e., an EPSCoR state) and the development of new international collaborations with French scientists. It also uses NSF-funded analytical facilities at Oregon State University and develops new methods for analyzing noble gases in rock samples, building infrastructure for science. Findings will also be incorporated into classes taught by the investigators and used to develop a new seminar for graduate students centered on modeling of reservoirs, processes and fluxes in chemical geodynamics.

The scientific goals of this research are to test the extent to which regions of the upper mantle beneath mid-ocean ridges and continental rifts are similar in their volatile abundances and isotopic compositions on a global scale. Analyses of carbon, nitrogen, hydrogen, and noble gases in undegassed mid-ocean ridge basalts will allow, for the first time, testing of the inter-relationships of noble gas and major volatile isotopes in CO2, N2, and H2O without employing degassing corrections. This allows a direct test for regional heterogeneity in the upper mantle. The research also specifically addresses the questions: (1) What proportions of the volatiles C, N and H2O in the upper mantle are primordial versus recycled; (2) do carbon stable isotopes in the ultra-depleted mid-ocean ridge basalts carry a record of earlier depletion in low degree melts that appears to be required in formation of the ultra-depleted source; (3) what is the behavior and concentration of N in the depleted upper mantle; and (4) what record of early Earth processes is preserved in the primordial isotope ratios of upper mantle noble gases.

Loading University of Tulsa collaborators
Loading University of Tulsa collaborators