Results 11 to 20 of about 7,997 (285)

Inter-Laboratory Correlation Exercise with Portable Emissions Measurement Systems (PEMS) on Chassis Dynamometers

open access: yesApplied Sciences, 2018
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]

open access: yes, 2007
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]

open access: yes, 2006
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]

open access: yes
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]

open access: yes, 2009
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

Fabrication of Polyelectrolyte Membranes of Pectin Graft-Copolymers with PVA and Their Composites with Phosphomolybdic Acid for Drug Delivery, Toxic Metal Ion Removal, and Fuel Cell Applications

open access: yesMembranes, 2021
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

PEM or MBI? [PDF]

open access: yesAnnals of Nuclear Medicine, 2016
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

open access: yesSupramolecular Materials, 2022
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

Assessment of online patient education materials designed for people with age-related macular degeneration

open access: yesBMC Ophthalmology, 2020
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

Reply to ‘PEM or MBI?’ [PDF]

open access: yesAnnals of Nuclear Medicine, 2016
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

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