Results 51 to 60 of about 7,997 (285)

DSQ-PEM vragenlijst

open access: yes, 2023
DSQ-PEM vragenlijst Eén van de symptomen van patiënten met long COVID en Myalgische Encefalomyelitis / Chronisch Vermoeidheidssyndroom (ME/CVS) is post-exertionele malaise (PEM). PEM is de langdurige verergering van klachten die ontstaat na fysieke, cognitieve of mentale inspanning boven een onbekende, individueel te bepalen drempel, en kan weken tot ...
openaire   +2 more sources

PEM Fuel Cells: Applications

open access: yes, 2022
The proton-exchange membrane fuel cell (PEMFC), emerged in the early 1990s, is a device that can produce clean power by the direct electrochemical oxidation of hydrogen. This chapter outlines the main features of the PEMFC and its unique operating characteristics.
openaire   +5 more sources

Sub‐Nanometer Cobalt on Tungsten Titanium Carbide MXene (W2TiC2Tx): An Electrocatalyst for Highly Efficient and Stable Alkaline Hydrogen Evolution at Industrial‐Scale Current Density

open access: yesAdvanced Materials, EarlyView.
A novel W2TiC2Tx MXene prepared through a MAX‐phase route supports sub‐nanometer Co for highly efficient alkaline hydrogen evolution. Strong Co–W interfacial interactions optimize hydrogen adsorption and catalytic activity, enabling low overpotentials of 63 mV at 10 mA cm−2, small Tafel slope of 44.3 mV dec−1, and exceptional durability at industrially
Xiaopeng Liu   +15 more
wiley   +1 more source

Freeway Performance Measurement System (PeMS), PeMS 6: Final Report for CCIT TO 15 [PDF]

open access: yes, 2006
PeMS 6 is the latest of six task orders devoted to research, development, and maintenance of the PeMS system. PeMS collects, processes, stores, and makes available online data from eight Caltrans districts (D3, 4, 5, 6, 7, 8, 11, 12).
Varaiya, Pravin
core   +1 more source

Tetrahedral Nitrogen Atoms Arrangement in A‐Site Cations: A New Approach for Regulating Sensitivity and Energy of Perovskite Energetic Materials

open access: yesAdvanced Science
Perovskite energetic materials (PEMs) are emerging combinations of oxidants and reductives, which are promising in explosives owing to the advantages of high energy, simple synthesis and low cost.
Shiyong Chen   +10 more
doaj   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

open access: yesAdvanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss   +4 more
wiley   +1 more source

Patient educational materials on non-steroidal anti-inflammatory drugs

open access: yesProceedings of Singapore Healthcare
Introduction Effectiveness of Patient Education Materials (PEMs) on NSAIDs is subjected to whether the patient is able to read and comprehend the information provided.
Bandy Qiuling Goh   +4 more
doaj   +1 more source

Emission testing of diesel multiple units complying with different emission standards during real operating conditions

open access: yesPojazdy Szynowe
This article presents comparative studies on pollutant emissions from railbuses meeting different emission standards (Stage IIIA and Stage IIIB). Measurements were conducted under real-world operating conditions on routes regularly serviced by the tested
Łukasz Rymaniak   +4 more
doaj   +1 more source

Polyoxometalate–Polymer Hybrid Materials as Proton Exchange Membranes for Fuel Cell Applications

open access: yesMolecules, 2019
As one of the most efficient pathways to provide clean energy, fuel cells have attracted great attention in both academic and industrial communities. Proton exchange membranes (PEMs) or proton-conducting electrolytes are the key components in fuel cell ...
Liang Zhai, Haolong Li
doaj   +1 more source

Particle Number PEMS: Inter-Laboratory: Comparison Exercise [PDF]

open access: yes, 2016
This report summarizes the results of the Inter-Laboratory Comparison Exercise for the PN-PEMS equipment that took place between September 2015 and January 2016.
MENDOZA VILLAFUERTE Pablo   +2 more
core   +1 more source

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