Results 121 to 130 of about 73,422 (266)

Simplified Small‐Signal Modeling Method for Non‐Isolated High Step‐Up Converters

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
A generalized small‐signal modeling methodology for a family of non‐isolated high step‐up DC‐DC converters is proposed. ABSTRACT This work presents a generalized small‐signal modeling methodology for a family of DC–DC converters based on the four‐state switching cell with a wide conversion range (WCR‐4SSC) operating in continuous conduction mode (CCM).
Samuel Antonio Macedo de Oliveira   +3 more
wiley   +1 more source

Publisher Correction: Efficiency of MALDI-TOF MS at identifying and discriminating immature stages of cimex lectularius and cimex hemipterus bed bugs

open access: yesScientific Reports
Saidou Ahamada M’madi   +4 more
doaj   +1 more source

Turnaround Time Trends in Cervical Cytology Screening in South Africa, 2005–2023

open access: yesDiagnostic Cytopathology, EarlyView.
ABSTRACT Background Timely cervical cytology results are crucial for effective screening and early management of precancerous lesions. However, many low‐ and middle‐income countries face delays in turnaround time (TAT). This study assessed TAT for cytology screening results in South Africa from 2005 to 2023 and identified factors associated with TAT ...
Sizeka Mashele   +8 more
wiley   +1 more source

Gestational Diabetes Mellitus Risk Factors in Pregnant Women Attending Public Health Institutions in Ethiopia’s Sidama Region: An Unmatched Case-Control Study

open access: yesDiabetes, Metabolic Syndrome and Obesity
Girma Tenkolu Bune1,2 1School of Public Health, College of Medicine and Health Science, Dilla University, Dilla Town, SNNPR, Ethiopia; 2Departiment of Public Health, Rift Valley University, Hawassa Town, Sidama Regional State, EthiopiaCorrespondence ...
Bune GT
doaj  

Geospatial inequalities and determinants of caesarean section delivery in sub-Saharan Africa: a multi-country analysis. [PDF]

open access: yesGlob Health Action
Abate BJ   +9 more
europepmc   +1 more source

Uniaxial compressive strength prediction and ratio parameter optimization of titanium tailings composite backfill materials using intelligent hybrid models

open access: yesDeep Underground Science and Engineering, EarlyView.
Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley   +1 more source

Explainable hybrid stacking ensemble method for hard rock pillar stability prediction and engineering applications

open access: yesDeep Underground Science and Engineering, EarlyView.
This research proposes an interpretable hybrid stacking ensemble framework, optimized by the Sparrow Search Algorithm, to enhance hard rock pillar stability prediction. By integrating six machine learning models—k‐nearest neighbors, support vector machines, random forests, Gradient Boosting Decision Tree, eXtreme Gradient Boosting, and Light Gradient ...
Ning Wang   +3 more
wiley   +1 more source

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