USFSP Digital Archive
Not a member yet
132282 research outputs found
Sort by
Distributed control of multiagent systems with heterogeneity in synchronization roles
No full textDisclosed is a multiagent system with agents in communication with each other via a communication network. The agents have heterogeneous time-invariant dynamics such that all of the agents have a primary set of synchronization roles that are different from a secondary set of synchronization roles of a subset of the agents
Systems and methods for compromise resilient and compact authentication for digital forensics
No full textA new compromise-resilient and compact cryptographic tool is provided that ensures a breach-resilient authentication and integrity of system measurements in computer systems. The described methods are forward-secure digital signatures with signature and partial public key aggregation capabilities. The methods reduce the total space overhead of signature and public key storage. The methods offer a high space efficiency for systems who has relatively low state transitions, wherein the same message is continuously signed and then followed by different messages
System and method for imaging tendon cross sections for detecting voids and other deficiencies in grouted external tendons
No full textAn exemplary method of indicating a condition of grout within a post-tensioned tendon involves positioning a magnet and a metallic sensing plate in close proximity to an outer surface of the post-tensioned tendon; rotating the magnet and the metallic sensing plate around the outer surface of the post-tensioned tendon; measuring an amount of magnetic forces applied to the magnet during rotation of the magnet around the post-tensioned tendon; measuring an impedance between the metallic sensing plate and metallic strands within the post-tensioned tendon during rotation of the metallic sensing plate around the post-tensioned tendon; and generating an image of a cross-section of the post-tensioned tendon indicating one or more grout conditions in spatial proximity to the metallic strands within the post-tensioned tendon based on measurement data using the magnet and the metallic sensing plate
Bis-cyclic guanidines as antibacterial agents
No full textProvided are novel bis-cyclic guanidine compounds, and the use thereof for treating bacterial infection
Method of delivering genes and drugs to a posterior segment of an eye
No full textA multifunctional dendrimer nanoparticle and method of treating diseases of the posterior segment of the eye is presented. The functionalized polyamidoamine (PAMAM) dendrimer effectively delivers drugs and/or genes to the posterior eye, thereby providing for the effective, non-invasive, and topical treatment of diseased in the posterior eye. The multifunctional dendrimer nanoparticle has shRNA-encoding DNA and small molecule drug encapsulated cyclodextrin complexed to the outer surface of the dendrimer for delivery to the posterior segment of the eye
Piezeoelectric-based asphalt layer for energy harvesting roadway
No full textAn energy harvesting roadway that includes a plurality of road segments and a power storage device electrically coupled to the plurality of road segments. Each of the plurality of road segments can include a surface asphalt layer, a first conductive asphalt layer located under the surface asphalt layer, a piezoelectric-based asphalt layer located between the first conductive layer and a second conductive layer located above a base asphalt layer. The piezoelectric-based asphalt layer can include a plurality of rigid piezoelectric elements and an insulating filler
The Blue Zones and the planet wellbeing
No full textThis research notes analyses the Blue Zones and its role in future sustainability. Blue Zones are areas of the world where people live longer. The study of their population lifestyles and the dietary patterns is crucial for implementation of policies to increase the wellbeing and the life expectancy of people. There are five areas in the world which are Blue Zones which show a close connection with nature and water, as most of them are located in islands
Ken Welch Oral History Interview
No full textThis is an oral history interview with Ken Welch, the mayor of St. Petersburg, Florida. Welch talks about his childhood in St. Petersburg and his memories of the Gas Plant area. He also discusses the issues and history surrounding the Oaklawn, Moffett, and Evergreen cemeteries
The Mineral Waters of Indiana
No full textWATER A MINERAL.-A mineral is any natural inorganic com- pound having a definite chemical composition. Quartz is an example of such a compound. It exists abundantly in nature, ,and its com- \u27ponents are the two elements, silicon and oxyglm, in the proportions of53.3partsof~xygento46.7ofsilicon. Accordingtothesame definition, water is a mineral. It is very widely distributed in nature and in a pure state is composed of the elements hydrogen and oxygen in the proportions of 11.11 parts of the former to 88.89 of the lattei\u27. Pure wat()r, however, is known only in the chemical laboratory, the purest form in nature being the vapor as it rises from ocean, stream\u27 or lake. When it condenses and falls as rain or SDlOW, impurities, as carbon dioxide, ammonia, dust, etc., are absorbed from the atmos- phere. The water which falls near the close of a long rain, especially in country regions, is almost free from these impurities. Some springs have also nearly pure water; but to separate all foreign mat- ter from it, water must be distilled. Even then it may contain traces of ammonia or other substance which vaporizes at a lower tempera- ture than the wa:ter itself
The Influence of Bipolar Electrochemical Cell Geometry on the Studies of Pitting Corrosion
No full textBipolar electrochemistry (BPE) is a technique that provides a wireless alternative totraditional electrochemistry to elicit redox reactions. It has been utilized in different applications, including studying localized corrosion, gradient electrodeposition, propulsion of micromotors, and water treatment. The popularity of the method is not solely dependent on its wirelessness but more due to the simultaneous presence of cathodic and anodic poles on the same surface, which also begets its name as bipolar. The concept of the method is based on the polarization of conductive objects in an electric field in the presence of an electrolyte. In BPE, instead of controlling the potential of the working electrode through a direct electrical connection, the interfacial potential difference between the floating potential of the working electrode and the potential drop inside the electrolyte creates a continuum of potentials on the surface of the bipolar electrode (BE). Notwithstanding the numerous benefits, the method also has its drawbacks. A primary disadvantage of the technique is inability to accurately measure the current flow and potential of the bipolar electrode; since the bipolar electrode is polarized without any direct electrical connections and only indirect techniques can be used to estimate the current/potential of the BE. Although BPE has been extensively studied with disparate configurations and in various applications, there is no justification for the selection of appropriate geometry in the literature and the geometries used in previous works are arbitrarily chosen. In addition, the influence of geometrical parameters of the cell on the current/potential distributions in the bipolar electrode remains recondite. The uniformity of the current distribution is important when BPE is used to investigate pitting corrosion. If pits are grown under the nonuniform current distribution, then the pit growth kinetics analysis is unreliable. The aim of this study is to elucidate the impact of cell elements on the uniformity of current in a split, open BPE configuration, find an optimized geometry contributing to the most even current distribution, and increase the bipolar current efficiency for studying a bipolar electrode undergoing localized corrosion