Feasibility of an Automatic Truck Warning System

DTFH61-91-R-00069One of the identified truck accident types that occur on curved exit ramps at interchanges is truck rollover. A truck will overturn or rollover if the lateral acceleration imposed upon it as it travels around a curve of a certain radius and superelevation is greater than allowable given its loading condition. Also, there is a speed at which rollover will occur. This report deals with an automatic warning system to prevent truck rollover. Within the study, three different options were identified and evaluated for feasibility. Of the three, the option selected for further definition and cost-effectiveness analyses was an inroad detection/warning system. The system consists of two detection stations upstream of the curve with the combined ability to detect a truck speed, weight, and height threshold. The warning system is a combination of a static warning sign and a fiber-optic warning message sign, which would be activated if the controller determined that the truck would be operating at the rollover threshold speed or faster by the time it reached the point of curvature. This report provides the details of the design, its costs, and its cost-effectiveness. Also, design plans and specifications were prepared for three installations on the Capital Beltway in Maryland and Virginia

Vehicle to Grid Demonstration Project

This report summarizes the activities and accomplishments of a two-year DOE-funded project on Grid-Integrated Vehicles (GIV) with vehicle to grid power (V2G). The project included several research and development components: an analysis of US driving patterns; an analysis of the market for EVs and V2G-capable EVs; development and testing of GIV components (in-car and in-EVSE); interconnect law and policy; and development and filing of patents. In addition, development activities included GIV manufacturing and licensing of technologies developed under this grant. Also, five vehicles were built and deployed, four for the fleet of the State of Delaware, plus one for the University of Delaware fleet

Design, fabrication, iteration, and testing of the 68x68 superlattice LED infrared projection system and associated electronics

Kiamilev, FouadOptoelectronic devices that emit in the mid-wave infrared (MWIR) and long-wave infrared (LWIR) wavelengths have traditionally targeted the 3-4 and 8-12 micrometer wavelength, because atmospheric absorption is minimal in the these windows. Infrared (IR) radiation has long been of scientific interest because the unique signatures of light emitted or absorbed can be remotely detected and characterized for all manner of objects and processes. Large IR detector arrays, particularly ones intended for military and/or aerospace applications, are often difficult and expensive to directly test. Ultimately for these detectors, an IR projector for scene simulation is required. This thesis documents the creation and testing of a cryogenic integrated infrared projection system combining large two-dimensional arrays of superlattice light-emitting diodes (SLEDs) with a custom driver IC and FPGA-based control system. It covers a range of disciplines, design decisions, systems engineering issues, and personal observations on the process of the design, fabrication, iteration, and testing of the 68x68 SLEDs system. Several testing sessions showed the unique functionality and capabilities in several important areas such as: apparent temperature exceeding 1000 Kelvin, rise and fall time of a few microseconds, and over 90 percent functional yield. The work described in this paper provides the foundation for the 512x512 SLEDs system currently in development.University of Delaware, Department of Electrical and Computer EngineeringM.S

Brief intense interval exercise activates AMPK and p38 MAPK signaling and increases the expression of PGC-1α in human skeletal muscle

From a cell signaling perspective, short-duration intense muscular&nbsp;work is typically associated with resistance training and linked&nbsp;to pathways that stimulate growth. However, brief repeated sessions&nbsp;of sprint or high-intensity interval exercise induce rapid phenotypic&nbsp;changes that resemble traditional endurance training. We tested&nbsp;the hypothesis that an acute session of intense intermittent&nbsp;cycle exercise would activate signaling cascades linked to mitochondrialbiogenesis in human skeletal muscle. Biopsies (vastus lateralis)&nbsp;were obtained from six young men who performed four 30-s &quot;all&nbsp;out&quot; exercise bouts interspersed with 4 min of rest (&lt;80&nbsp;kJ total work). Phosphorylation of AMP-activated protein kinase&nbsp;(AMPK; subunits&nbsp;1 and&nbsp;2) and the p38 mitogen-activated protein&nbsp;kinase (MAPK) was higher (P&nbsp;&nbsp;0.05) immediately after&nbsp;bout 4&nbsp;vs. preexercise. Peroxisome proliferator-activated receptor-&nbsp;coactivator-1(PGC-1) mRNA was increased approximately twofold&nbsp;above rest after 3 h of recovery (P&nbsp;&nbsp;0.05); however, PGC-1protein&nbsp;content was unchanged. In contrast, phosphorylation of protein&nbsp;kinase B/Akt (Thr308&nbsp;and Ser473) tended to decrease, and downstream&nbsp;targets linked to hypertrophy (p70 ribosomal S6 kinase and 4E&nbsp;binding protein 1) were unchanged after exercise and recovery.&nbsp;We conclude that signaling through AMPK and p38 MAPK to PGC-1&nbsp;may explain in part the metabolic remodeling induced by low-volume&nbsp;intense interval exercise, including mitochondrial biogenesis&nbsp;and an increased capacity for glucose and fatty acid oxidation.<br /

Vehicle to Grid Demonstration Project

This report summarizes the activities and accomplishments of a two-year DOE-funded project on Grid-Integrated Vehicles (GIV) with vehicle to grid power (V2G). The project included several research and development components: an analysis of US driving patterns; an analysis of the market for EVs and V2G-capable EVs; development and testing of GIV components (in-car and in-EVSE); interconnect law and policy; and development and filing of patents. In addition, development activities included GIV manufacturing and licensing of technologies developed under this grant. Also, five vehicles were built and deployed, four for the fleet of the State of Delaware, plus one for the University of Delaware fleet