Results 11 to 20 of about 943,320 (269)

Acoustic Emission [PDF]

, 2021
AbstractAcoustic emission (AE) is one of the most promising methods for structural health monitoring (SHM) of materials and structures. Because of its passive and non-invasive nature, it can be used during the operation of a structure and supply information that cannot be collected in real time through other techniques. It is based on the recording and
Aggelis, Dimitrios G., Sause, Markus G. R., Packo, Pawel, Pullin, Rhys, Grigg, Steve, Kek, Tomaž, Lai, Yu-Kun   +6 more
openaire   +2 more sources

Evaluation of the performance of a high-resolution time-of-flight PET system dedicated to the head and breast according to NEMA NU 2-2012 standard

EJNMMI Physics, 2022
Background This study evaluated the physical performance of a positron emission tomography (PET) system dedicated to the head and breast according to the National Electrical Manufacturers Association (NEMA) NU2-2012 standard.
Daisuke Morimoto-Ishikawa, Kohei Hanaoka, Shota Watanabe, Takahiro Yamada, Yoshiyuki Yamakawa, Suzuka Minagawa, Shiho Takenouchi, Atsushi Ohtani, Tetsuro Mizuta, Hayato Kaida, Kazunari Ishii   +10 more
doaj   +1 more source

Evaluating the In-Service Emissions of High-Mileage Dedicated Methanol-Fueled Passenger Cars: Regulated and Unregulated Emissions

Energies, 2020
This paper reports the regulated, unregulated, and particle number emissions from six high-mileage, China-4 compliant, dedicated methanol taxis over the new European driving cycle.
Sheng Su, Yunshan Ge, Xin Wang, Mengzhu Zhang, Lijun Hao, Jianwei Tan, Fulu Shi, Dongdong Guo, Zhengjun Yang   +8 more
doaj   +1 more source

A New Diagnostic Algorithm for Multiple IGBTs Open Circuit Faults by the Phase Currents for Power Inverter in Electric Vehicles

Energies, 2018
In order to simplify the application and improve diagnostic speed of the diagnostics, a novel method to diagnose multiple open circuit faults in insulated gate bipolar transistors (IGBTs) by three-phase currents for power inverter in electric vehicles is
Hongqian Wei, Youtong Zhang, Lei Yu, Mengzhu Zhang, Khaled Teffah   +4 more
doaj   +1 more source

PET/CT Radiomic Features: A Potential Biomarker for EGFR Mutation Status and Survival Outcome Prediction in NSCLC Patients Treated With TKIs

Frontiers in Oncology, 2022
BackgroundsEpidermal growth factor receptor (EGFR) mutation profiles play a vital role in treatment strategy decisions for non–small cell lung cancer (NSCLC).
Liping Yang, Panpan Xu, Mengyue Li, Menglu Wang, Mengye Peng, Ying Zhang, Tingting Wu, Wenjie Chu, Kezheng Wang, Hongxue Meng, Lingbo Zhang   +10 more
doaj   +1 more source

Erdheim-Chester Disease: Utility of 18F-FDG Positron Emission Tomography [PDF]

Journal of Clinical and Diagnostic Research, 2018
Erdheim-Chester Disease (ECD) is a rare non Langerhans cell histiocytosis of unknown origin with multiorgan involvement. We report a case of a man who presented to us with haematuria, asthenia, fever, nausea and malleolar oedema.
Angelina Cistaro, Maria Licari, Simone Margotti, Daniele Penna, Vincenzo Arena   +4 more
doaj   +1 more source

Informal emissions

, 2022
Environmental regulations and their enforcement play a critical role in reducing emissions and their devastating effects on humanity and the environment. However, many developing countries have large informal sectors—accounting for more than 70 percent of total employment, that operate outside government control.
Burgi, Constantin, Hovhannisyan, Shoghik, Joshi, Santosh Ram, Alkhuzam, Ahmad F.   +3 more
openaire   +2 more sources

Sub-23 nm Particle Emissions from China-6 GDI Vehicle: Impacts of Drive Cycle and Ambient Temperature

Atmosphere, 2022
Both the EU and China are evaluating the feasibility of lowering the detection limit of particle number (PN) measurement to 10 nm in future legislations, making it necessary to better understand the sub-23 nm particle emission characteristics from state ...
Dongdong Guo, Yunshan Ge, Xin Wang, Haixu Liu, Sheng Su, Chunbo Li, Tinghong Tao   +6 more
doaj   +1 more source

Transient Characterization of Automotive Exhaust Emission from Different Vehicle Types Based on On-Road Measurements

Atmosphere, 2020
Previous works on real-world vehicle emission characteristics have mainly focused on the influences of fuel, speed, vehicle type, elevation, and other factors on vehicle emission quantity and components.
Chao Ma, Lin Wu, Hong-jun Mao, Xiao-zhen Fang, Ning Wei, Jin-sheng Zhang, Zhi-wen Yang, Yan-jie Zhang, Zong-yan Lv, Lei Yang   +9 more
doaj   +1 more source

Brake wear-derived particles: Single-particle mass spectral signatures and real-world emissions

Environmental Science and Ecotechnology, 2023
Brake wear is an important but unregulated vehicle-related source of atmospheric particulate matter (PM). The single-particle spectral fingerprints of brake wear particles (BWPs) provide essential information for understanding their formation mechanism ...
Jiayuan Liu, Jianfei Peng, Zhengyu Men, Tiange Fang, Jinsheng Zhang, Zhuofei Du, Qijun Zhang, Ting Wang, Lin Wu, Hongjun Mao   +9 more
doaj   +1 more source