Results 1 to 10 of about 74,936 (290)

Research on prediction of PPV in open-pit mine used RUN-XGBoost model

Heliyon
The drill-blasting method is a commonly used mining technique in open-pit mines, and the peak particle velocity (PPV) caused by blasting vibrations is an important indicator for evaluating the rationality of blasting mining design parameters.
Mingzhi Sun, Jiamian Yang, Chengye Yang, Weiping Wang, Xiaobing Wang, Hongfei Li   +5 more
doaj   +5 more sources

Dynamic and volumetric variables reliably predict fluid responsiveness in a porcine model with pleural effusion. [PDF]

PLoS ONE, 2013
BackgroundThe ability of stroke volume variation (SVV), pulse pressure variation (PPV) and global end-diastolic volume (GEDV) for prediction of fluid responsiveness in presence of pleural effusion is unknown. The aim of the present study was to challenge
Ole Broch, Matthias Gruenewald, Jochen Renner, Patrick Meybohm, Jan Schöttler, Katharina Heß, Markus Steinfath, Berthold Bein   +7 more
doaj   +3 more sources

Evaluation and Prediction of Blast-Induced Ground Vibrations: A Gaussian Process Regression (GPR) Approach

Mining, 2023
Ground vibration is one of the most hazardous outcomes of blasting. It has a negative impact both on the environment and the human population near to the blasting area.
Yewuhalashet Fissha, Hajime Ikeda, Hisatoshi Toriya, Narihiro Owada, Tsuyoshi Adachi, Youhei Kawamura   +5 more
doaj   +3 more sources

Do Artificial Neural Networks Always Provide High Prediction Performance? An Experimental Study on the Insufficiency of Artificial Neural Networks in Capacitance Prediction of the 6H-SiC/MEH-PPV/Al Diode

Symmetry, 2022
In this paper, we study a new model that represents the symmetric connection between capacitance–voltage and Schottky diode. This model has a symmetrical shape towards the horizontal direction. In recent times, works conducted on artificial neural network structure, which is one of the greatest actual artificial intelligence apparatuses used in various
Andaç Batur Çolak, Anum Shafiq, Kamsing Nonlaopon   +2 more
exaly   +2 more sources

Risk prediction model for cataract after vitrectomy surgery: a 2-year study on primary rhegmatogenous retinal detachment [PDF]

International Journal of Ophthalmology
AIM: To establish a risk prediction model for secondary cataract within 2y after pars plana vitrectomy (PPV) in patients with primary rhegmatogenous retinal detachment (RRD). METHODS: Clinical data of patients with primary RRD treated at the Shenzhen Eye
Di Gong, Da-Hui Ma, Qing Zhang, Kuan-Rong Dang, Wei-Hua Yang, Jian-Tao Wang   +5 more
doaj   +2 more sources

A KNN-based model for non-invasive prediction of hemorrhagic shock severity in prehospital settings: integrating MAP, PBUCO2, PTCO2, and PPV

BioMedical Engineering OnLine
Background Rapid prehospital assessment of hemorrhagic shock severity is critical for trauma triage and intervention. Current non-invasive single-parameter monitoring shows limited diagnostic reliability.
Peng Zhao, Wencai Pan, Xin Zou, Jiaqing Yang, Shihui Zhang, Yufei Liu, Yang Li   +6 more
doaj   +3 more sources

Urban Quarry Ground Vibration Forecasting: A Matrix Factorization Approach

Applied Sciences, 2023
Blasting is routinely carried out in urban quarry sites. Residents or houses around quarry sites are affected by the ground vibrations induced by blasting. Peak Particle Velocity (PPV) is used as a metric to measure ground vibration intensity. Therefore,
Hajime Ikeda, Masato Takeuchi, Elsa Pansilvania, Brian Bino Sinaice, Hisatoshi Toriya, Tsuyoshi Adachi, Youhei Kawamura   +6 more
doaj   +1 more source

Predictive Modelling for Blasting-Induced Vibrations from Open-Pit Excavations

Applied Sciences, 2021
Reliable estimates of peak particle velocity (PPV) from blasting-induced vibrations at a construction site play a crucial role in minimizing damage to nearby structures and maximizing blasting efficiency.
Yo-Hyun Choi, Sean Seungwon Lee
doaj   +1 more source

The relationship between insulin resistance and ion mobility lipoprotein fractions

American Journal of Preventive Cardiology, 2023
Objective: Insulin resistance (IR) increases risk of type 2 diabetes and atherosclerotic cardiovascular disease and is associated with lipid and lipoprotein abnormalities including high triglycerides (TG) and low high-density lipoprotein cholesterol (HDL-
Charles M. Rowland, Fahim Abbasi, Dov Shiffman, Joshua W. Knowles, Michael J. McPhaul   +4 more
doaj   +1 more source

PPV distribution of sidewalls induced by underground cavern blasting excavation

Scientific Reports, 2021
The peak particle velocity (PPV) is an important indicator for predicting blasting excavation disturbances. However, the PPV distribution in the deep underground space is significantly different from that on the outdoor ground. Therefore, it is difficult
Yi Luo, Xiaoqing Wei, Junhong Huang, Guang Zhang, Xing Bian, Xinping Li   +5 more
doaj   +1 more source