306 research outputs found

    A CLASSIFICATION OF LOWER PALEOZOIC CARBONATE-BEARING ROCKS FOR GEOTECHNICAL APPLICATIONS

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    An empirically-based classification of lower Paleozoic carbonate-bearing rocks was created for field-based geotechnical applications. Geotechnical parameters were subsequently correlated to that classification. Seven hundred seventy-seven samples were used as the basis for the classification. Thirteen categories based on visual and tactile properties and a hydrochloric acid test were created. Samples were from central, north-central, and south-central Kentucky and represented the majority of Ordovician exposures in the state, and some Mississippian exposures. Few Silurian and Devonian units were included in the sample set. Geotechnical parameters, including density as well as elastic constants (shear and compression wave velocities, Poisson’s ratio, Young’s modulus, and shear modulus), were calculated for 113 representative samples from the classification. Compression strength testing was completed on 29 samples and the slake durability index was calculated for 18 samples. Testing values were correlated to the classification system in an attempt to use the classification as a predictive and comparative tool for geotechnical applications. Despite samples being heterogeneous and isotropic, each of the 13 categories behaved differently and predictably, with the sharpest contrast in siliciclastic and carbonate rocks

    cytonGrasp: Cyton Alpha Controller via GraspIt! Simulation

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    This thesis addresses an expansion of the control programs for the Cyton Alpha 7D 1G arm. The original control system made use of configurable software which exploited the arm’s seven degrees of freedom and kinematic redundancy to control the arm based on desired behaviors that were configured off-line. The inclusions of the GraspIt! grasp planning simulator and toolkit enables the Cyton Alpha to be used in more proactive on-line grasping problems, as well as, presenting many additional tools for on-line learning applications. In short, GraspIt! expands what is possible with the Cyton Alpha to include many machine learning tools and opportunities for future research. Noteworthy features of GraspIt!: • A 3D user interface allowing the user to see and interact virtual objects, obstacles, and robots, in addition to a 3D representation of the Cyton Alpha • A collision detection and contact determination system within simulation • On-line grasp analysis routines • Visualization methods for determining the weak points within a grasp, as well as, creating projections of grasp quality and ability to resist dynamic forces. • Computation of numerical grasp quality metrics and visualization methods for proposed grasps • Dynamics engine • Support for lower-dimensional hand posture subspaces • Interaction with sensors (Flock of Birds tracker) and hardware (Pioneer robot) within simulation • GraspIt! can generate huge databases of labeled grasp data, which can be used for data-driven grasp-planning algorithms and has built in support for the Columbia Grasp Database. By making use of the GraspIt! simulator, it is possible to test algorithms for grasp manipulation, grasp planning, or grasp synthesis more quickly and with greater repeatability than would be possible on the real robot. Contributions of this system include: 1. A joint based 3D rendering of the Cyton Alpha 7D 1G arm 2. Simulated bodies for several objects in the DI Lab 3. Support for multiple representations of joint data within three-dimensional space • Euler Angles • Quaternions • Denavit-Hartenberg Parameters 4. Framework for future work in grasp-planning, grasp synthesis, cooperative grasping tasks, and transfer learning applications with the Cyton Alpha arm

    Implicit Communication for Peer-to-Peer Human-Robot Teams in Shared Workspaces

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    Shifting the E-Discovery Solution: Why Taniguchi Necessitates a Decline in E-Discovery Court Costs

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    The amount of electronically stored information in the United States doubles every 18-24 months, and 90 percent of U.S. corporations are currently engaged in some kind of litigation. These factors, combined with the new way we store our information, have turned discovery into a complicated and expensive process. In response, parties have attempted to pass these costs off to the non-prevailing party as court costs under 28 U.S.C § 1920 ( Section 1920 ), which enumerates six items that can be awarded as court costs. The U.S. Courts of Appeals are split regarding the interpretation of Section 1920. If the statute is interpreted broadly, a variety of ediscovery tasks, ranging from hiring outside counsel to creating litigation-related databases, can be properly awarded as costs. If the statute is read more narrowly, however, courts will limit the type of ediscovery costs that can be awarded under the language of the statute, which will reduce e-discovery court costs. This Comment will describe the current state of the circuit split and discuss the various approaches to interpreting Section 1920. This Comment will then describe the Taniguchi v. Kan Pacific Saipan, Ltd. case in detail and analyze how the case\u27s dicta might affect the ediscovery court costs debate. Finally, this Comment will propose a judicial test for interpreting Section 1920 in a uniform manner. This Comment ultimately urges the U.S. Supreme Court to intervene and mandate such a test

    A Phase I Cultural Resources Survey of the 8-Mile Project, Brazoria County, Texas

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    Perennial Environmental Services, LLC (Perennial), on behalf of Phillips 66 Pipeline LLC (P66), conducted an intensive cultural resources survey of the proposed 8-Mile Project located in Brazoria County, Texas . The proposed Project will consist of an approximately 1,275.3-acre (ac) (516.1-hectare [ha]) facility designed to service the transportation of Natural Gas Liquids (NGLs) and will include a railroad track loop, storage, railcar offloading tracks, an administrative building, and other structures necessary for operation of the facility. The proposed Project is located within the jurisdictional boundary of the U.S. Army Corps of Engineers (USACE) Galveston District. The Project may require the usage of a Nationwide Permit (NWP) issued by the USACE, and as such, a cultural resources survey was conducted for the 1275.3 ac (516.1 ha) Project area in accordance with Section 106 of the National Historic Preservation Act (NHPA) (36 CFR Part 800). The survey was designed to inventory and assess cultural resources across the Project. These efforts involved both surface and subsurface archaeological survey. The area of potential effect (APE) is considered the entirety of the Project area. The APE measures approximately 1275.3 ac (516.1 ha). Perennial conducted the intensive Phase I cultural resources survey within the boundary of the Project APE. Zachary Overfield served as the Principal Investigator (PI) for the Project and supervised all aspects of the cultural resources survey. The fieldwork was conducted by Tessa Noble, Mary Noell, Jacob Cumberland, Patrick Gainey, Anne Marie Fraley, and Allyson Walsh on December 4-12, 2014 and Amy Goldstein, Kirsten Atwood, and Zachary Overfield on February 22-24, 2016. The background review identified two National Register listed properties (Marmion’s gazebo and Palapa table) northwest of the Project area. Both properties are located upon the historic James Richard Marmion Estate, which has not been evaluated in its entirety for its NRHP eligibility (Atlas 2016). The gazebo and Palapa table were created by noted sculptor Dionicio Rodriguez and qualify under criterion C as the work of a master. The gazebo is located 0.4 mi (0.7 km) northwest of the Project area and the table is located 0.6 mi (1.0 km) northwest of the Project area. The properties do not lie in the Project viewshed as bottomland hardwood forest obscures the northwestern boundary. Additionally, rail facilities will not drastically alter the character of the viewshed due to the prior establishment of a railroad and rail facilities in the immediate area. These properties are a sufficient distance outside of the Project APE and will not be impacted by Project construction activities. The field survey resulted in entirely negative findings with no cultural resources observed along the ground surface or within any of the 395 shovel tests excavated across the Project. Overall, the Project area was found to be dominated by cleared pastureland that was once bottomland hardwood forests. Multiple pipeline corridors bisect the property, and inundation was widespread during the 2014 and 2016 investigations. Based on the extent of the survey efforts and the entirely negative results of the investigation, it is the professional opinion of the Principal Investigator that the Project will have no adverse effect on significant cultural resources listed on or considered eligible for listing on the NRHP. No further work is recommended for the Project
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