Results 1 to 10 of about 13,824,814 (228)

Particle size penetration rate and effects of smoke and smokeless tobacco products - An invitro analysis. [PDF]

Heliyon, 2021
Utilization of tobacco products is a global epidemic that causes a health threat among the adolescents and adults of the world. If the current pattern perpetuates, it is estimated to cause 10 million deaths each year by 2020.
Antony JVM, Ramani P, Ramasubramanian A, Sukumaran G.   +3 more
europepmc   +2 more sources

Traffic light optimization with low penetration rate vehicle trajectory data. [PDF]

Nat Commun
Traffic light optimization is known to be a cost-effective method for reducing congestion and energy consumption in urban areas without changing physical road infrastructure.
Wang X, Jerome Z, Wang Z, Zhang C, Shen S, Kumar VV, Bai F, Krajewski P, Deneau D, Jawad A, Jones R, Piotrowicz G, Liu HX.   +12 more
europepmc   +2 more sources

Supervised Machine Learning Techniques to the Prediction of Tunnel Boring Machine Penetration Rate

Applied Sciences, 2019
Predicting the penetration rate is a complex and challenging task due to the interaction between the tunnel boring machine (TBM) and the rock mass. Many studies highlight the use of empirical and theoretical techniques in predicting TBM performance ...
Haitao Xu, Jian Zhou, P. Asteris, D. J. Armaghani, M. Tahir   +4 more
semanticscholar   +3 more sources

Three-year nationwide survey of microbiology laboratory equipment conditions in China's CDC: setting new benchmarks. [PDF]

Front Public Health
BackgroundThis study evaluates the penetration and evolution of laboratory equipment in China’s Centers for Disease Control and Prevention (CDCs) from 2021 to 2023, establishing benchmarks for optimal equipment configuration and operational capacity ...
Niu P, Sun Z, Zhang Y, Zhang D, Zhang R, Zhao Y, Tian F, Zhang J, Zheng H, Guo J, Cheng P, Ma X, Wang J.   +12 more
europepmc   +2 more sources

Rate of Penetration Optimization using Moving Horizon Estimation [PDF]

Modeling, Identification and Control: A Norwegian Research Bulletin, 2016
Increase of drilling safety and reduction of drilling operation costs, especially improvement of drilling efficiency, are two important considerations in the oil and gas industry. The rate of penetration (ROP, alternatively called as drilling speed) is a critical drilling parameter to evaluate and improve drilling safety and efficiency.
Sui, Dan, Aadnøy, Bernt Sigve
openaire   +3 more sources

A method to estimate traffic penetration rates of commercial floating car data using speed information

Transport, 2022
Floating Car Data (FCD) are being increasingly used as an alternative traffic data source due to its lower cost and high coverage area. FCD can be obtained by tracking vehicle trajectories individually or by processing multiple tracks anonymously to ...
Oruc Altintasi, Hediye Tuydes-Yaman, Kagan Tuncay   +2 more
doaj   +1 more source

Estimating Penetration Rate of Excavation Machine Using Geotechnical Parameters and Neural Networks in Tabriz Metro [PDF]

Analytical and Numerical Methods in Mining Engineering, 2023
In this study, the penetration rate of the excavation machine in Tabriz Metro Line 2 using geotechnical parameters and neural networks is estimated. For this purpose, through comprehensive analysis, including borehole drilling, field and laboratory tests,
Samaneh Khodaee Ashestani, Hamid Chakeri, Mohammad Darbor, Erfan Khoshzaher, Seyyed Shahab Eddin Bazargan   +4 more
doaj   +1 more source

A novel Hybrid XGBoost Methodology in Predicting Penetration Rate of Rotary Based on Rock-Mass and Material Properties

The Arabian journal for science and engineering, 2023
Predicting the drill penetration rate is a fundamental requirement in mining operations, profoundly impacting both the cost-effectiveness of mining activities and strategic mine planning.
M. Kazemi, Zohreh Nabavi, D. J. Armaghani   +2 more
semanticscholar   +1 more source

Evaluation of macroscopic fundamental diagram characteristics for a quantified penetration rate of autonomous vehicles

European Transport Research Review, 2023
Background The availability of private vehicles with autonomous features is widespread nowadays. Various car manufacturers are providing attributes like collision warning, city automatic emergency braking, adaptive cruise control, pedestrian detection ...
M. Bilal, D. Giglio
semanticscholar   +1 more source

Numerical simulation method for dynamic process of spudcan penetration

Yantu gongcheng xuebao, 2023
Based on the coupled Euler-Lagrange (CEL) method, the process of spudcan penetration is simulated, and several parameters affecting the calculated results are analyzed.
SHEN Xiaopeng 1, LI Shuzhao 1, LI Wei 1, LIANG Wenzhou 1, CAO Tianming 2, LIU Run 2
doaj   +1 more source