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 149 for “"ramps"”.
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Safety Evaluation of Freeway Exit Ramps
… evaluate safety performances of different exit ramps used in Florida and nationally. More specific, the research objectives include the following two parts: (1) to evaluate the impacts of different exit ramp types on safety performance for freeway diverge areas; and (2) to identify the different …
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Macroscopic Coupling Conditions with Partial Blocking for Highway Ramps
We consider the Lighthill-Whitman-Richards traffic model on a network consisting of a highway with an off ramp, connected by a junction. We compare the known coupling conditions for the evolution of traffic at the junction and suggest a novel improvement to the existing conditions. That is, we …
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Computer model to simulate truck accidents on exit ramps
… different highway geometry especially, on exit ramps where most of the rollover accidents occur every year. But not enough research was done in the past on the weather and surface conditions affecting the truck safety. The objective of this study is to develop a graphics-based computer …
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Application of critical chain principles to improve microprocessor technology ramps
Across Intel's microprocessor production there exists high variability on new technology process tools meeting standard, installation and qualification (I/Q) schedule durations. To reduce project schedule variability and increase time to money, Intel has begun examining critical chain management …
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Late Quaternary sand ramps in south-western Namibia - Nature, origin and palaeoclimatological significance
Sand ramps have been (and still are) neglected in geomorphological research. Only recently any awareness of their potential of being a major source of palaeoenvironmental information, thanks to their multi-process character, has been developed. In Namibia, sand ramps were terra incognita. This …
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System-wide Safety Analysis of a Complex Transportation Facility: Urban Freeway Off-ramps
… of a particular facility type, urban freeway off-ramps, in terms of its geometric and traffic characteristics. 144 off-ramp segments in Richmond, VA were evaluated based on the crash data available from 2011 to 2015. A statistical model was developed that relates crashes to the geometric and …
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Developing Production Techniques and A Site Assessment Tool for Forest Farmed Ramps in Appalachia
The Allium tricoccum Aiton (ramps, aka wild leeks), a native spring ephemeral, is a cultural keystone species in Appalachia, a mountainous physiographic region encompassing 205,000 square miles of the eastern United States. People in Appalachia have long harvested ramps in the wild. However, …
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Hydrodynamic Controls on Sedimentology and Geomorphology of Marine-Carbonate Ramps: Insights from a Holocene Analogue, Northern Yucatán Shelf, Mexico
… of carbonate platform types, carbonate ramps have long been characterized and interpreted with regard to large-scale controls such as tectonics, sea level, climate, and biota. Yet, details on the impacts of oceanographic processes on facies patterns of ramps remains uncertain. To explore …
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Sand ramps or climbing dunes? : identification and palaeoenvironmental significance of aeolian deposits in the Southern Kalahari and Breede River valley, South Africa
… dunes and their classification as either sand ramps or climbing dunes. Topographical dunes in two semi-arid regions, namely the southern Kalahari (a summer rainfall region) and the Breede River Valley (a winter rainfall region), were investigated. The study also evaluates the …
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Identification of Previously Unknown Interactions Between G Protein-Coupled Receptors and Receptor Activity-Modifying Proteins
… example, receptor activity-modifying proteins (RAMPs), a family of single transmembrane proteins with only three members, are ubiquitously expressed and have been shown to interact with several different GPCRs. Most research to date has focused on the ability of RAMPs to modulate the function of …
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Evaluating Ramp Metering And Variable Speed Limits To Reduce Crash Potential On Congested Freeways Using Micro-simulation
… consists of 17 Loop Detector stations, 11 On-ramps and 10 off-ramps. PARAMICS micro-simulation is used as the tool for modeling the freeway section. The simulated network is calibrated and validated for 5 minute average flows and speeds using loop detector data. Feedback Ramp Metering …
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Static Machines, Fragile Loads
Ramps are usually perceived as utilitarian objects emerging from standardized guidelines for architecture and landscape architecture. But closer examination reveals they can be quite beautiful and poetic. What we commonly call ramps, Galileo referred to as inclined planes, counting them as one of …
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Modulation of cyclic adenosine monophosphate (cAMP) signalling and its therapeutic potential: pharmacological characterisation of PDE inhibitors
… the possibility of biased signalling by RAMPs on protease-activated receptor 4 (PAR4) and calcitonin-like receptor (CLR). Using PAR4 transiently transfected HEK293T cells, both cognate ligand and agonist peptide were used to profile PAR4 signalling including RAMPs-trafficking to the …
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Large eddy simulation of shock boundary layer interaction control using micro-vortex generators
… experimental and computational study of micro-ramps in a supersonic boundary layer at Mach 3 subjected to an oblique shock was undertaken. The experiments employed a flat plate boundary layer with an impinging oblique shock with downstream total pressure measurements. The moderate Reynolds …
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An investigation of strain patterns and mesoscopic structures associated with ramp-induced folds
… and clay multilayers containing pre-cut ramps, have generated broad, flattopped to narrow, rounded fold geometries. Initial boundary conditions, including lubrication, end effects, and the ratio of mechanical unit to overburden rigidity determine proportions of translation and …
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Dynamics of the Gross-Pitaevskii Equation and Shortcuts to Adiabaticity
… In particular, we study the response induced by ramps in the interaction strength of such a system. We determine the power law decay exponents of the induced excitations as well as the characteristic frequency with which these excitations oscillate with respect to the duration and mean values of …
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Educational opportunities for physically handicapped students in post-Soviet Russia: the role of the judicial system
… schools and municipal authorities to install ramps for mobility-impaired citizens on the basis of the 1995 federal law “On the Social Protection of Handicapped Persons”. The conclusion is drawn that Russian judges consistently uphold the implementation of ramps for accessibility in school …
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Multiplexed Mapping of the Interactome of G Protein-Coupled Receptors and Receptor Activity-Modifying Proteins
<p>Receptor activity-modifying proteins (RAMPs) have emerged as modulators of many aspects of G protein-coupled receptor (GPCR) biology and pharmacology. The RAMP family was discovered more than two decades ago and GPCR-RAMP interactions and their functional consequences on receptor trafficking and …
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