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CFD Simulation of SCR Systems Using a Mass-Fraction-Based Impingement Model

open access: yesFluids, 2023
Computational fluid dynamics (CFD) are an essential tool for the development of diesel engine aftertreatment systems using selective catalytic reduction (SCR) to reduce nitrous oxides (NOx). In urea-based SCR, liquid urea–water solution (UWS) is injected
Max Quissek   +3 more
doaj   +1 more source

Impact of Surface Roughness on the Impingement of Urea–Water Solution Droplets

open access: yesFluids, 2023
The understanding of impingement processes is crucial for optimizing automotive selective catalytic reduction (SCR) systems. An accurate description of this behavior helps design exhaust systems and increases the validity of modeling approaches.
Max Quissek, Thomas Lauer
doaj   +1 more source

Digital 3D Technologies for Humanities Research and Education: An Overview

open access: yesApplied Sciences, 2022
Digital 3D modelling and visualization technologies have been widely applied to support research in the humanities since the 1980s. Since technological backgrounds, project opportunities, and methodological considerations for application are widely ...
Sander Muenster
doaj   +1 more source

A Web Application for Watermark Recognition [PDF]

open access: yesJournal of Data Mining and Digital Humanities, 2020
The study of watermarks is a key step for archivists and historians as it enables them to reveal the origin of paper. Although highly practical, automatic watermark recognition comes with many difficultiesand is still considered an unsolved challenge ...
Oumayma Bounou   +10 more
doaj   +1 more source

Breast mass classification based on supervised contrastive learning and multi‐view consistency penalty on mammography

open access: yesIET Biometrics, 2022
Breast cancer accounts for the largest number of patients among all cancers in the world. Intervention treatment for early breast cancer can dramatically extend a woman's 5‐year survival rate.
Lilei Sun   +6 more
doaj   +1 more source

Metagenomic and metaproteomic analyses of microbial amino acid metabolism during Cantonese soy sauce fermentation

open access: yesFrontiers in Nutrition, 2023
Cantonese soy sauce is an important type of traditional Chinese brewed soy sauce that was developed in southern China, mainly in Guangdong. Due to the long fermentation period and complex microbiota in Cantonese soy sauce, there are few reports on the ...
Cong Chen   +10 more
doaj   +1 more source

The research of the All-Russian Local Council 1917–1918 and regional (district) Councils of the Russian Church in 1918–1920 in the modern Russian historiography [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: История. Международные отношения, 2023
The author of the paper analyses modern scientific works in which the All-Russian Local Council 1917–1918 is examined. Moreover, the historiography of the regional (district) councils that took place in the Russian Church during the Local Council ...
Mramrornov, Alexander I.
doaj   +1 more source

Two‐view attention‐guided convolutional neural network for mammographic image classification

open access: yesCAAI Transactions on Intelligence Technology, 2023
Deep learning has been widely used in the field of mammographic image classification owing to its superiority in automatic feature extraction. However, general deep learning models cannot achieve very satisfactory classification results on mammographic ...
Lilei Sun   +6 more
doaj   +1 more source

Performance Analysis of Cognitive Radio System Under Non-ideal Spectrum Sensing [PDF]

open access: yesJisuanji gongcheng, 2016
The Continuous Time Markov Chain(CTMC) is adopted to construct the cognitive radio system under multi-channel non-ideal spectrum sensing.Based on this,the relationship of the state transition rate,system detection rate and user arrival rate is formulated.
CHEN Song,WANG Sheng,ZHENG Nae,HU Hanying
doaj   +1 more source

A Review of Artificial Intelligence and Robotics in Transformed Health Ecosystems

open access: yesFrontiers in Medicine, 2022
Health care is shifting toward become proactive according to the concept of P5 medicine–a predictive, personalized, preventive, participatory and precision discipline.
Kerstin Denecke, Claude R. Baudoin
doaj   +1 more source

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