Results 71 to 80 of about 184,150 (234)

Beyond Prediction: Data, Baselines, Explanation, and Causation in Machine Learning for Food Insecurity

Food Safety and Health, EarlyView.
The gains from machine learning in nowcasting and forecasting food insecurity are still small and limited and cannot be observed in all countries. This review summarizes the public resources for data, corrects common misconceptions about model requirements, and establishes baseline requirements, explanations, causal inference, and equity in operational
Shabnam Mehboob, Azman Abdullah, Gunesh Kumar, Samreen Memon, Naila Afghan   +4 more
wiley   +1 more source

The flow deteriorations in course of the partial load operation of the middle specific speed Francis turbine

Open Engineering, 2019
The article presents the results of experimental and numerical tests of a water turbine. As the object of the research the middle size Francis turbine, characterized by a middle value of specific speed, was taken into consideration.
Szulc Przemyslaw, Machalski Artur
doaj   +1 more source

Machine Learning for Autism Spectrum Disorder Prediction: A Review of Data Augmentation and Feature Selection Techniques

Health Care Science, EarlyView.
Autism spectrum disorder (ASD) is a complex neurodevelopmental condition characterized by persistent difficulties in social communication, social interaction, and repetitive behaviors. Early diagnosis is often hindered by subjective clinical assessments and limited data availability.
Sahar Alkhaibari, Feng Dong
wiley   +1 more source

Connection between inlet velocity field and diffuser flow instability [PDF]

Applied and Computational Mechanics, 2009
Simulations of the flow in a straight diffuser were carried out for different inlet velocity profiles equivalent to the real turbine operating points. Frequencies and magnitudes of pressure pulsations of the rotating vortex rope were recorded.
Rudolf P.
doaj  

Toward Objective Anal Cancer Screening: From Swab‐Based Genome‐Wide Methylation Marker Discovery to Novel Test Development

International Journal of Cancer, EarlyView.
ABSTRACT Anal high‐grade squamous intraepithelial lesions (HSIL:AIN2/3) are precursors to anal cancer, and early detection and treatment through screening is crucial for effective cancer prevention. Current guidelines recommend anal swab‐based screening and highlight the need for objective biomarkers to improve risk stratification.
Kirsten Rozemeijer, Jürgen Claesen, Fernando Dias Gonçalves Lima, Albertus T. Hesselink, Phoebe Klingers, Timo ter Braak, Yara van den Burgt, Chris J. L. M. Meijer, Jan M. Prins, Henry J. C. de Vries, Mark A. van de Wiel, Renske D. M. Steenbergen   +11 more
wiley   +1 more source

Hydroacoustic Modeling of a Cavitation Vortex Rope for a Francis Turbine

, 2015
Hydraulic machines subject to off-design operation involve the presence of cavitating flow regimes in the draft tube. The cavitation vortex rope at part load conditions is described as an excitation source for the hydraulic system, and interactions between this excitation source and system eigenfrequency may result in resonance phenomena and induce a ...
openaire   +1 more source

How Does AI Empower Corporate ESG Practices? Mechanisms Based on Information Processing Theory

International Journal of Finance &Economics, EarlyView.
ABSTRACT In the context of the latest technological revolution and industrial transformation, Artificial Intelligence (AI) provides new impetus for the development of corporate ESG practices. This study, based on data from 2630 A‐share listed companies in China from 2010 to 2022, examines the impact of AI on corporate ESG performance and its mechanisms
Qin Zhu, Shanshan Jiang, Anna Min Du
wiley   +1 more source

Experimental investigation of pressure fluctuations caused by a vortex rope in a draft tube

IOP Conference Series: Earth and Environmental Science, 2012
In the last years hydro power plants have taken the task of power-frequency control for the electrical grid. Therefore turbines in storage hydro power plants often operate outside their optimum. If Francis-turbines and pump-turbines operate at off-design conditions, a vortex rope in the draft tube can develop.
O Kirschner, A Ruprecht, E Göde, S Riedelbauch   +3 more
openaire   +1 more source

Human biomarker navigator

iMeta, EarlyView.
The Human Biomarker Navigator integrates the disease continuum, biomarker dynamics, cross‐organ biomarker networks, biomarker classification, and technology‐driven paradigms. It maps how biomarkers link multi‐system physiology and pathology across the nervous, respiratory, endocrine, circulatory, immune, digestive, urinary, reproductive, and ...
Meng‐Yao Li, Qian Zhang, Zijie Wang, Zeping Gui, Jing Liu, Jingda Li, Maojun Jiang, Zukang Chang, Qingqing Han, Bendong Yang, Tariq Saeed, Jun Li, Jinghan Jia, Chenghu Song, Tong Shao, Tianhuan Peng, Xueying Zhang, Pingping Guo, Jun Luo, Gangao Yang, Yuan Wan, Gokhan Zengin, Quan Yuan, Lingru Li, Xiaohui Fan, Yang Luo, Lvyun Zhu, Yanfei Zheng, Wenjun Mao, Wenlong Sun   +29 more
wiley   +1 more source

Fast numerical evaluation of flow fields with vortex cells [PDF]

, 2009
A vortex cell (in this paper) is an aerodynamically shaped cavity in the surface of a body, for example a wing, designed specially to trap the separated vortex within it, thus preventing large-scale unsteady vortex shedding from the wing.
Chernyshenko, S., Hetsch, T., Savelsberg, R., Castro, I.P.   +3 more
core   +1 more source