Results 81 to 90 of about 73,958 (307)

Challenges and enablers in fluidization technology

AIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

A new software toolkit for optical apportionment of carbonaceous aerosol [PDF]

Atmospheric Measurement Techniques
Instruments measuring aerosol light absorption, such as the Aethalometer and the Multi-Wavelength Absorbance Analyzer (MWAA), have been extensively used to characterize optical absorption of atmospheric particulate matter.
T. Isolabella, T. Isolabella, V. Bernardoni, V. Bernardoni, A. Bigi, M. Brunoldi, M. Brunoldi, F. Mazzei, F. Mazzei, F. Parodi, P. Prati, P. Prati, V. Vernocchi, D. Massabò, D. Massabò   +14 more
doaj   +1 more source

Consumption Tax Options for California [PDF]

, 2011
Reviews concerns about the state's current tax system and evaluates potential consumption-based tax reforms, including retail sales tax reform, corporate income tax reform, gross receipts tax, value added tax, and sales-apportioned tax on value ...
Alan J. Auerbach
core  

Spatial and temporal variations of aerosols around Beijing in summer 2006: Model evaluation and source apportionment [PDF]

, 2009
Regional aerosol model calculations were made using the Weather Research and Forecasting (WRF)-Community Multiscale Air Quality (CMAQ) and WRF-chem models to study spatial and temporal variations of aerosols around Beijing, China, in the summer of 2006 ...
Blake, DR, Chang, SY, Fast, JD, Hu, M, Kita, K, Koike, M, Kondo, Y, Matsui, H, Miyazaki, Y, Streets, DG, Takegawa, N, Zaveri, RA, Zhang, Q, Zhu, T   +13 more
core   +1 more source

Device‐Level Implementation of Reservoir Computing With Memristors

Advanced Intelligent Systems, EarlyView.
Reservoir computing (RC) is an emerging computing scheme that employs a reservoir and a single readout layer, which can be actualized in the nanoscale with memristors. As a comprehensive overview, the principles of RC and the switching mechanisms of memristors are discussed, followed by actual demonstrations of memristor‐based RC and the remaining ...
Sunbeom Park, Hyojung Kim, Ho Won Jang
wiley   +1 more source

Snow‐Induced Perturbations in Nitrous Acid (HONO) Levels: Insights Into Heterogeneous Reactions During Wintertime in Mid‐Latitude Regions

Geophysical Research Letters
Nitrous acid (HONO) governs wintertime hydroxyl radical (OH) production, critically linking radical cycling, tropospheric oxidative capacity, and air pollution. During a mid‐latitude snowfall event, rapid HONO enrichment was observed alongside concurrent
Peng Cheng, Wenbin Ma, Yihang Yu, Huirong Li, Li Huang, Ji Ling, Wenda Yang, Zhilin Tian, Xiaofang Yu, Nan Ma, Ye Kuang, Shaobin Zhang, Wanyun Xu, Huarong Zhao, Gen Zhang, Zhaofeng Tan, Zhijiong Huang, Pingqing Fu, Hang Su, Yafang Cheng   +19 more
doaj   +1 more source

Fine Particulate Matter and Ozone Air Quality in Western Pennsylvania in the 2000s [PDF]

, 2011
Presents data on the area's particulate matter, ozone, and emissions levels and air pollution sources. Examines air quality compared with the rest of the nation, links between premature death and harmful levels of air pollution, and monitoring ...
John Graham
core  

Deep Reinforcement Learning Approaches for Sensor Data Collection by a Swarm of UAVs

Advanced Intelligent Systems, EarlyView.
This article presents four decentralized reinforcement learning algorithms for autonomous data harvesting and investigates how collaboration improves collection efficiency. It also presents strategies to minimize training times by improving model flexibility, enabling algorithms to operate with varying number of agents and sensors.
Thiago de Souza Lamenza, Bruno José Olivieri de Souza, Markus Endler   +2 more
wiley   +1 more source

Exploring the Spatial Distribution and Sources of OVOCs in Shenzhen Using an Optimized Source Apportionment Method

Atmosphere
Oxygenated volatile organic compounds (OVOCs) are key precursors to atmospheric ozone (O3) and secondary organic aerosols (SOA). However, research on the sources of OVOCs is still limited, particularly in terms of multi-point observations at urban sites.
Li He, Cheng-Bo Wei, Guang-He Yu, Li-Ming Cao, Xiao-Feng Huang   +4 more
doaj   +1 more source

The Impact of Losses on Income Tax Revenue and Implicit Tax Rates of Different Income Sources: Evidence from Microsimulation Using Tax Statistics for Germany [PDF]

In order to calculate the burden of a comprehensive and progressive income tax falling on a certain income source, an apportionment scheme for the entire tax burden has to be chosen.
Hermann Buslei, Stefan Bach
core