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.
Results
Showing 1 to 6 of 6 for “"GPF"”.
-
Ash impacts on gasoline particulate filter performance and service life
… means other than gasoline particulate filters (GPF). A GPF will create an additional back-pressure in the engine exhaust system that will reduce engine power and efficiency. This backpressure will increase as PM is trapped in the filter and decrease as combustible PM removed. A buildup of …
-
The structural architecture of seismogenic faults, Sierra Nevada, California; implications for earthquake rupture processes
… Canyon National Park; the Granite Pass fault (GPF) and associated faults, and the Glacier Lakes fault (GLF) and faults that splay from the GLF. The GPF and sub-parallel faults are 1 to 6.7km long with left-lateral strike-slip displacements up to 80m. The GPF and GPF-parallel faults have …
-
Development and implementation of efficient noise suppression methods for emission computed tomography
… expectation-maximization reconstruction method (GPF-EM) using both Monte Carlo-simulated data and anonymized clinical data. Model-observer studies using Monte Carlo-simulated data indicate that ICTV-PAPA is able to reconstruct images with similar or better lesion detectability, compared with …
-
Developing an accelerated aging system for gasoline particulate filters and an evaluation test for effects on engine performance
… fuel injection. Gasoline particulate filters (GPFs) present one strategy for meeting PM limits over the full operating range of the engine. Over time these filters accumulate incombustible ash, increasing system pressure drop and adversely effecting engine performance. The effect of aging as a …
-
Real-Time Resource Optimization for Wireless Networks
… for each active user in the cell. We present GPF+ — a GPU based real-time PF scheduler. With GPF+, the original PF optimization problem is decomposed into a large number of small and in- dependent sub-problems. We then employ a cross-entropy based search intensification technique to identify …
-
MRI Studies of Gas Hydrodynamics in Automotive Particulate Filters
… This is performed for three model washcoated GPF samples. The permeability estimations agree with porosimetry measurements and reveal a variety of non-uniform washcoat distributions in the filters, which is predicted to impact the pressure drop and filtration behaviour. This method is applied …