Results 11 to 20 of about 7,997 (285)
The recently introduced Real Driving Emissions (RDE) light-duty vehicle emissions regulation requires testing with Portable Emissions Measurement Systems (PEMS) during type approval and in-service conformity. The studies on the accuracy of PEMS today are
Barouch Giechaskiel +11 more
doaj +3 more sources
Freeway Performance MeasurementSystem (PeMs), PeMS 7.0 [PDF]
PeMS 7.0 is the latest of eight task orders devoted to research, development, andmaintenance of the PeMS system (there was one mid-year task order, PeMS 6.5).PeMS collects, processes, stores, and makes available online data from nine Caltransdistricts (D3-8, 10-12). The data are obtained from 23,871 loops1, grouped into 9,306 vehicle detector stations (
Varaiya, Pravin
core +3 more sources
Freeway Performance Measurement System(PeMS), PeMS 6.5 [PDF]
PeMS 6.5 is the latest of seven task orders devoted to research, development, andmaintenance of the PeMS system. While most PeMS research grants coincide with fiscal and academic years (July-June), this project started mid-year in response to a number of feature and maintenance requests (i.e. it was too late for Pe MS 6 and too soon for PeMS 7).
Varaiya, Pravin
core +3 more sources
Next Generation (Smaller, Lower Cost, Lower Energy Consumption) PEMS [PDF]
The in-use emissions testing industry, academic research and the emission abatement technology development sector have all been pushing for smaller, lighter, lower cost and, ever more importantly, lower energy consumption portable emissions measurement ...
Ropkins, K, Burnette, A, Li, H
core +6 more sources
The Freeway Performance Measurement System (PeMS), PeMS 9.0: Final Report [PDF]
Under development and operation since 1999, PeMS now is the de facto repository for all Caltrans fixed-location detector data. The PeMS 9.0 effort completed seven tasks: (1) Control Algorithm Support; (2) Integration of Census Data in PeMS; (3) Investigation of Fidelity of 3rd Party Detectors; (4) OD estimation algorithm based on the fusion of the ...
Varaiya, Pravin
core +3 more sources
In this study, a simple method for the fabrication of highly diffusive, adsorptive and conductive eco-friendly polyelectrolyte membranes (PEMs) with sulfonate functionalized pectin and poly(vinyl alcohol)(PVA) was established.
Raagala Vijitha +8 more
doaj +1 more source
Dear Editor, We have read with utmost interest the preliminary report by Yamamoto et al. of breast cancer screening by fluorine-18 fluorodeoxyglucose (18F-FDG) positron emission mammography (PEM) [1]. However, despite its many reported advantages, we have some concerns about its actual superiority in the diagnosis of tumours in the dense breast ...
Zdanowski, Paweł, Leszek Królicki
openaire +2 more sources
Dynamic structural controlment for the functionalization of polyelectrolyte multilayer films
Polyelectrolyte multilayer films (PEMs) fabricated from the layer-by-layer (LbL) assembly technique have attracted wide interests in the past several decades.
Wei-Pin Huang +4 more
doaj +1 more source
Background Age-related macular degeneration (AMD) is a chronic eye condition that leads to permanent vision loss in the central visual field. AMD makes reading challenging and inefficient.
Jennifer Fortuna +3 more
doaj +1 more source
We thank the author’s interest in our report entitled ‘breast cancer screening by fluorine-18 fluorodeoxyglucose (18FFDG) positron emission mammography (PEM)’ [1]. Although, the commercial use of molecular breast imaging (MBI) is not available currently in our country, it has widely been adopted for breast cancer screening in other countries [2 ...
openaire +2 more sources

