Results 21 to 30 of about 1,214,165 (308)

Contribution of Airplane Engine Emissions on the Local Air Quality around Stuttgart Airport during and after COVID-19 Lockdown Measures

Atmosphere, 2022
Air quality investigations at airports have shown that aircrafts cause a significant increase in air pollution at and around the vicinity of the airport, which can cause adverse effects on human health.
Abdul Samad, Kathryn Arango, Ioannis Chourdakis, Ulrich Vogt   +3 more
doaj   +1 more source

Impact of Multiple Grid-Connected Solar PV Inverters on Harmonics in the High-Frequency Range

Energies
In recent years, integration of solar photovoltaic (PV) systems into distribution networks has been increasing rapidly, as it has become the most promising renewable energy source (RES) in the transition of power generation from centralised to ...
Kasun Peiris, Sean Elphick, Jason David, Duane Robinson   +3 more
doaj   +1 more source

Effect of Relative Humidity and Air Temperature on the Results Obtained from Low-Cost Gas Sensors for Ambient Air Quality Measurements

Sensors, 2020
Using low-cost gas sensors for air quality monitoring promises cost effective and convenient measurement systems. Nevertheless, the results obtained have a questionable quality due to different factors that can affect sensor performance.
Abdul Samad, Daniel Ricardo Obando Nuñez, Grecia Carolina Solis Castillo, Bernd Laquai, Ulrich Vogt   +4 more
doaj   +1 more source

Characterisation of Harmonic Resonance Phenomenon of Multi-Parallel PV Inverter Systems: Modelling and Analysis

Energies
Solar PV inverters require output filters to reduce unwanted harmonics in their output, where LCL filters are a more economical choice than larger inductance-only filters. A drawback of these filters is that they can introduce power quality disturbances,
Kasun Peiris, Sean Elphick, Jason David, Duane Robinson   +3 more
doaj   +1 more source

The Mountainous and Plain Areas on the Northeastern Margin of the Qaidam Basin Contrast Study on Raindrop Spectrum Characteristics

Gaoyuan qixiang, 2022
Based on the rain drop size distribution （DSD） observation data at different altitudes of Zongwulong mountain on the northeast edge of Qaidam Basin from July to September 2020， the contribution of different particle size raindrop microphysical parameters，
Wang PENG, Qiong LI, Jiahua WEI, Zhen QIAO, Weiwen SHEN, Wenwen BAI, Julong HE, Changxian QI   +7 more
doaj   +1 more source

Results of the Childhood Cancer and Leukaemia Group's United Kingdom Relapsed Wilms Tumour Trial

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The United Kingdom relapsed Wilms tumour (UKW‐R) trial aimed to improve the historically low survival rates after relapse of Wilms tumour (WT) through a prospective national risk‐stratified protocol. The trial also evaluated efficacy and toxicity of high‐dose melphalan.
Sucheta J. Vaidya, Veronica Moroz, Juliet Hale, Vesna Pavasovic, Rachel Hobson, Patricia Sartori, Daniel Saunders, Mark Powis, Gordan M. Vujanic, Stephen Baker, Kathy Pritchard‐Jones   +10 more
wiley   +1 more source

Measurement of High-Frequency Voltage Harmonics above 2 kHz in High-Voltage Networks

Energies
Large-scale renewable energy plants, flexible AC (alternating current) and high voltage DC (direct current) transmission systems, and modern consumer devices utilize power electronics that tend to increase harmonic emissions.
Imanka Dewayalage, Duane A. Robinson, Sean Elphick, Sarath Perera   +3 more
doaj   +1 more source

Exploring Preferences for a Digital Single‐Session Intervention for Adolescent Siblings of Youth With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Adolescent siblings of children with cancer are at elevated risk for psychosocial problems. Unfortunately, various barriers such as limited family time and resources, conflicting schedules, and psychosocial staffing constraints at cancer centers hinder sibling access to support.
Christina M. Amaro, Sarah Silver, Prishi Patel, Meredith K. Reffner Collins, Kimberly S. Canter, Stephanie Fooks‐Parker, Michael Amylon, Shawna V. Hudson, Jessica L. Schleider, Melissa A. Alderfer, Katie A. Devine   +10 more
wiley   +1 more source

Study on the pyrolysis characteristics of styrene-grafted polypropylene cable insulation material

AIP Advances
Polypropylene (PP) has garnered significant attention as a cable insulation material due to its exceptional electrical performance and recyclability. Styrene-grafted polypropylene (PP-g) emerges as a promising alternative in this context.
Chao Peng, Fanwu Chu, Mingzhong Xu, Junping Hou, Wei Zhang, Kai Deng, Jian Gong, Zihang Qin   +7 more
doaj   +1 more source

Assessment of Coarse, Fine, and Ultrafine Particles in S-Bahn Trains and Underground Stations in Stuttgart

Atmosphere, 2022
The Stuttgart S-Bahn network comprises six subway lines and is used by approximately 425,000 people on a daily basis. In previous studies in other cities, it was found that subways can be a source and collection point of particulate matter (PM), which is
Abdul Samad, Kathryn Arango, Diego Alvarez Florez, Ioannis Chourdakis, Ulrich Vogt   +4 more
doaj   +1 more source