Results 21 to 30 of about 910,465 (249)

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

Attosecond field emission

Nature, 2023
AbstractField emission of electrons underlies great advances in science and technology, ranging from signal processing at ever higher frequencies1 to imaging of the atomic-scale structure of matter2 with picometre resolution. The advancing of electron microscopy techniques to enable the complete visualization of matter on the native spatial (picometre)
H. Y. Kim, M. Garg, S. Mandal, L. Seiffert, T. Fennel, E. Goulielmakis   +5 more
openaire   +3 more sources

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

A Comparison of the Evaporative Emissions Performance of Light-Duty Vehicles under US Tier 3 and China 6 Test Conditions

Atmosphere, 2023
To further improve air quality in China, especially ozone and fine particulate matter (PM2.5), additional reductions of volatile organic compounds (VOCs) are needed.
Di Peng, Miao Tian, Fei Yi, Xinping Yang, Liang Ji, Junfang Wang, Hang Yin, Yan Ding, Haiguang Zhao   +8 more
doaj   +1 more source

Rational Optimization of Cathode Composites for Sulfide-Based All-Solid-State Batteries

Nanomaterials, 2023
All-solid-state lithium-ion batteries with argyrodite solid electrolytes have been developed to attain high conductivities of 10−3 S cm−1 in studies aiming at fast ionic conductivity of electrolytes.
Artur Tron, Raad Hamid, Ningxin Zhang, Alexander Beutl   +3 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Analysis of the National Air Pollutant Emissions Inventory (2021) in the Republic of Korea

Asian Journal of Atmospheric Environment
In the Republic of Korea, air pollutant emissions are annually estimated and published. These emissions are used to formulate and evaluate national air quality policies.
Jeongpil Jang, Eunmi Han, Jinha Heo, Suah Choi, Jihoon Park, Kang-San Lee, Jongmin Joo, Hyeongdo Song, Chul Yoo   +8 more
doaj   +1 more source

Influence of Multiple Animal Scanning on Image Quality for the Sedecal SuperArgus2R Preclinical PET Scanner

Frontiers in Physics, 2021
Background: Increased throughput in small animal preclinical studies using positron emission tomography leads to reduced costs and improved efficiency of experimental design, however the presence of multiple off-centre subjects, as opposed to a single ...
Nikos Efthimiou, Nikos Efthimiou, John D. Wright, Luke Clayton, Isaline Renard, Federico Zagni, Paulo R.R.V. Caribé, Stephen J. Archibald, Stephen J. Archibald, Christopher J. Cawthorne, Christopher J. Cawthorne   +10 more
doaj   +1 more source

Coherent emission [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractThe theory of plasma emission and of electron cyclotron maser emission, and their applications to solar radio bursts and to Jupiter's decametric radioation (DAM) and the Earth's auroral kilometric radiation (AKR) are reviewed, emphasizing the early literature and problems that remain unresolved.
openaire   +2 more sources

Highly electro-conductive B4C–TiB2 composites with three-dimensional interconnected intergranular TiB2 network

Journal of Advanced Ceramics, 2023
To achieve lightweight B4C-based composite ceramics with high electrical conductivities and hardness, B4C–TiB2 ceramics were fabricated by reactive spark plasma sintering (SPS) using B4C, TiC, and amorphous B as raw materials.
Jun ZHAO, Dong WANG, Xing JIN, Xiang DING, Jianhua ZHU, Songlin RAN   +5 more
doaj   +1 more source