Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 63 for “"THOR"”.
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Thor: The Hybrid Online Repository
… We also present the design and implementation of Thor (The hybrid online repository), a system that fulfills these requirements. Thor leverages preexisting local and remote repositories and enhances their usability and security through centralized management, credential context subsets, and …
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Notification in the THOR database system
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, June 2002.
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Implementation of the two-phase commit protocol in Thor
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Probing Galactic Magnetism near the Galactic Center with THOR-GC
… Recombination Line Survey of the Milky Way (THOR-GC). THOR-GC covers the Galactic center, a complex region where the GMF is poorly understood. Polarization observations in THOR-GC can aid in uncovering the nature of the GMF in this region. As well, analysis of a highly polarized transient …
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Development, Calibration, and Validation of a Finite Element Model of the THOR Crash Test Dummy for Aerospace and Spaceflight Crash Safety Analysis
… of the Test Device for Human Occupant Restraint (THOR) dummy was developed, calibrated, and validated for use in aerospace and spaceflight impact analysis. A previously developed THOR FE model was first evaluated under spinal loading. The FE model was then updated to reflect recent updates made to …
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Biomechanical Responses of Small Female Human Surrogates during Frontal Sled Tests using a Realistic Vehicle Environment
… sexes respond to vehicle safety systems. The THOR 5th-percentile female (THOR-05F) anthropomorphic test device (ATD) was developed to represent a small female occupant better than the Hybrid III 5th percentile female (HIII-05F) ATD. However, the two ATDs have not been compared to post-mortem …
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Design of Linear Series Elastic Actuators for a Humanoid Robot
… legs of the Tactical Hazardous Operations Robot (THOR). The THOR SEA pairs a ball screw driven linear actuator with a configurable titanium leaf spring. A removable pivot changes the effective cantilever length, setting the compliance to either 372 or 655 kN/m. Unlike typical SEAs which measure …
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An assessment of the extent of environmental mercury contamination in the vicinity of Thor Chemicals, Cato Ridge, Kwa Zulu-Natal, South Africa and the subsequent health risk communities consuming fish in the area are exposed to
… Africa, in particular the river system below the Thor Chemicals mercury recycling plant, has been a topic of heated debate for a number of years. Thor Chemicals was established as a mercury recycling plant in the mid-1980' s and it processed mercury waste imported from various countries. A number …
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Two-dimensional, Hydrodynamic Modeling of Electrothermal Plasma Discharges
… 2D Electrothermal Plasma Flow Simulator (THOR). THOR simulates the electron, ion, and neutral species as separate fluids coupled through interaction terms. The two-dimensional modeling capabilities made available in this new code represent a tool for the exploration and analysis of the …
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Gagnaver : samkeppnishæfni Íslands
… til hefur aðeins eitt verið tekið í notkun, Thor Data Center. Thor gagnaverið var tekið í notkun 21.maí 2010 og því aðeins búið að vera starfandi í tæpt ár. Farið verður yfir kosti og ókosti Íslands sem staðsetningu fyrir gagnaver en fjölmargir þættir koma málinu við. Hvaða þættir eru það sem …
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Design and Evaluation of an Underactuated Robotic Gripper for Manipulation Associated with Disaster Response
… for the Tactical Hazardous Operations Robot (THOR). THOR is a humanoid robot designed for use in the DARPA Robotics Challenge (DRC) and the Shipboard Autonomous Fire Fighting Robot (SAFFiR) project, both of which pertain to completing tasks associated with disaster response. The gripper was …
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JPS : a distributed persistent Java system
… persistent Java system built on top of the Thor object-oriented database. JPS provides several advantages over other persistent Java systems. Unlike most of other systems, JPS is a distributed system that allows multiple clients to simultaneously access the object store. JPS is built to be …
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Submarining and Abdominal Injury for Rear-Seated Mid-Size Males during Frontal Crashes
… frontal crash sled tests were conducted with the THOR-50M and Hybrid III 50th-percentile male ATDs in three crash conditions and seven modern vehicles. The vehicles included a minivan, an SUV, 3 compact SUVs, and 2 sedans from the US vehicle fleet (model years 2017-2018). Four vehicles had …
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Design of a Humanoid Robot for Disaster Response
… level. The Tactical Hazardous Operations Robot (THOR) was designed to compete in the DARPA Robotics Challenge where it needs to complete tasks based on first-responder operations. These tasks, ranging from traversing rough terrain through driving a utility vehicle, suggest a versatile platform in …
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A History of the CCM Brass Choir
… From 1949-1957, the CCM Brass Choir hosted the Thor Johnson Brass Ensemble Compositions Contest, an event which inspired international participation. The competition was hosted by CCM and then Cincinnati Symphony Orchestra Music Director Thor Johnson, an innovator in the field of music …
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Investigating the Thoracic Biomechanical Responses of Rear Seated 50th Percentile Male Anthropomorphic Test Devices and Post Mortem Human Surrogates During Frontal Motor Vehicle Collisions
… injured regions of the body during MVCs is the thorax. While there are fewer adult passengers riding in the rear seat compared to the front seat, the number of adults in the rear seat may increase dramatically in the near future with the rise of ridesharing services and highly automated vehicles …
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Development and Characterization of an Interprocess Communications Interface and Controller for Bipedal Robots
… acts as a robot controller designed to run on THOR and ESCHER, and is configurable to use different control modes and controller implementations. By combining an IPC interface layer with controllers, the Valor ROS Controller enabled Team VALOR to use Team ViGIR's software capabilities at the …
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Language models for verifiable mathematical automation: Interaction, integration, and autoformalization
… provers and language models for proof search: Thor. Thor uses language models for creative proof steps, and calls Sledgehammer (Isabelle’s tool with access to many automated theorem provers) to fill in premise selection details. We also develop Magnushammer, a hammer-like system with a …
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Dynamic Locomotion and Whole-Body Control for Compliant Humanoids
… through experimental results obtained using THOR, a 34 degree of freedom (DOF) series elastic humanoid. Rough terrain locomotion is demonstrated in simulation, and compliant locomotion and push recovery are demonstrated in hardware. We discuss practical considerations that led to a successful …
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Design and Implementation of a Scalable Real-Time Motor Controller Architecture for Humanoid Robots and Exoskeletons
… Series Elastic Actuator based humanoid robot THOR.
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