An Improved Adaptive Variable Step Size LMS Algorithm for Harmonic Detection by ZHANG Han

“…In order to improve the accuracy and tracking speed of harmonic current detection, an improved variable step-size LMS (least mean square ) algorithm was proposed based on LMS algorithm. …”
Get full text

Utility of nonlinear analysis of heart rate variability in early detection of metabolic syndrome by José Alberto Zamora-Justo, Myriam Campos-Aguilar, María del Carmen Beas-Jara, Pedro Galván-Fernández, Alberto Ponciano-Gómez, Santiago Cristóbal Sigrist-Flores, Rafael Jiménez-Flores, Alejandro Muñoz-Diosdado

“…Traditional markers, such as body mass index (BMI) and waist circumference, often fail to detect early metabolic dysfunctions.MethodsThis study evaluated nonlinear characteristics of heart rate variability (HRV) series, including sample entropy (SampEn), multifractal spectrum parameters, and detrended fluctuation analysis (DFA). …”
Get full text

Evidence for Variable Accretion onto PDS 70 c and Implications for Protoplanet Detections by Yifan Zhou, Brendan P. Bowler, Aniket Sanghi, Gabriel-Dominique Marleau, Shinsuke Takasao, Yuhiko Aoyama, Yasuhiro Hasegawa, Thanawuth Thanathibodee, Taichi Uyama, Jun Hashimoto, Kevin Wagner, Nuria Calvet, Dorian Demars, Ya-Lin Wu, Lauren I. Biddle, Sebastiaan Y. Haffert, Marta L. Bryan

“…We quantify the impact of variability on the detectability of protoplanets in imaging surveys and emphasize the need for continued and regular monitoring to accurately assess the occurrence and characteristics of young, forming planets.…”
Get full text

Variability of Known Exoplanet Host Stars Observed by TESS by Emilie R. Simpson, Tara Fetherolf, Stephen R. Kane, Joshua Pepper, Teo Močnik, Paul A. Dalba

“…From these comparisons, we quantify the effects of stellar variability on exoplanet detection, confirming that exoplanets detection is biased toward lower variability stars, but larger exoplanets dominate the population of exoplanets around variable stars. …”
Get full text

Heart rate variability parameters in patients with systemic sclerosis: association with disease characteristics and therapy by G. R. Avetisian, D. A. Anichkov, A. A. Klimenko, A. I. Dontsova

“…To study heart rate variability (HRV) parameters in patients with systemic sclerosis (SSc) and their relationship with disease characteristics and therapy.Material and methods. …”
Get full text

COVID-19 patient variables associated with the detection of airborne SARS-CoV-2 by Joan Truyols-Vives, Gabriel Escarrer-Garau, Laura Arbona-González, Núria Toledo-Pons, Jaume Sauleda-Roig, Miguel David Ferrer, Pablo Arturo Fraile-Ribot, Antonio Doménech-Sánchez, Herme García-Baldoví, Ernest Sala-Llinàs, Antoni Colom-Fernández, Josep Mercader-Barceló

“…In this study, we analyzed the influence of patient variables on airborne SARS-CoV-2 genome detection. …”
Get full text

Outlier Detection Method of Dam Monitoring Data Based on Robust Estimation and Variable Separation by LIANG Huibin, ZHANG Han, ZHANG Linsong, CAO Yuxin, ZHOU Jingren

Get full text

Intrusion detection method based on hierarchical hidden Markov model and variable-length semantic pattern by DUAN Xue-tao1, JIA Chun-fu 1, LIU Chun-bo1

“…Based on the hierarchical relationship and the state transition characteristics of the variable-length semantic patterns, a hierarchical hidden Markov intrusion detection model was presented. …”
Get full text

Assess the Variability and Robustness of an Aluminum-Based Adsorption–Precipitation Method for Virus Detection in Wastewater Samples by Lorena Casado-Martín, Marta Hernández, José M. Eiros, Antonio Valero, David Rodríguez-Lázaro

“…The results indicate that, despite the overall robustness of the method, the concentration step exhibits the highest variability (CV = 53.82%), which accounted for 53.73% of the overall variability. …”
Get full text

Research on Multi-Objective Evolutionary Algorithms Based on Large-Scale Decision Variable Analysis by Jianing Li, Sijia Xu, Jiaming Zheng, Guoqing Jiang, Weichao Ding

Get full text

Human alveolar macrophage response to Mycobacterium tuberculosis: immune characteristics underlying large inter-individual variability by Wolfgang Sadee, Ian H. Cheeseman, Audrey Papp, Maciej Pietrzak, Michal Seweryn, Xiaofei Zhou, Shili Lin, Amanda M. Williams, Mark D. Wewers, Heather M. Curry, Hao Zhang, Hong Cai, Carine Kunsevi-Kilola, Happy Tshivhula, Gerhard Walzl, Blanca I. Restrepo, Léanie Kleynhans, Katharina Ronacher, Yufeng Wang, Eusondia Arnett, Abul K. Azad, Larry S. Schlesinger

Get full text

Spatiotemporal Variability of Arctic Soil Moisture Detected from High-Resolution RADARSAT-2 SAR Data by Adam Collingwood, François Charbonneau, Chen Shang, Paul Treitz

Get full text

The variability of the microbial profile of corneal ulcers by P. M. Maharramov, M. H. Guliyeva

Get full text

Fault Detection and Isolation Strategy for Brake Actuation Units of High-Speed Trains Under Variable Operating Conditions by Jingxian Ding, Tianyu Xia, Xinzhou Wu, Shize Zheng, Tianyi Wang

“…Secondly, considering that the fault detection threshold is not easy to determine due to the variable operating conditions of the BAU, the steady-state fault feature based on MR was extracted. …”
Get full text

Electro-Assisted Optical Method of Chirp Compensation for Bandwidth/Bitrate Variable Transceivers Using the Hammerstein-Wiener System by Mumtaz Ali, Michela Svaluto Moreolo, Laia Nadal, Josep M. Fabrega

Get full text

Influence of target area density parameter and electrostatic pulse width modulation variable nozzle on physical characteristics of precision spray by Lin Zhen, Liang Shengkai, Xie Jinye, Tian Shuo

“…This paper discusses the observation of different precision spraying processes of pulse width modulated variable sprinkler in electrostatic field under different target area densities and discusses the physical characteristics of precision spraying under electrostatic action of different target area density parameters and pulse width modulated variable sprinkler, the influence of various parameters of precision spraying on spray settling rate. …”
Get full text

Reverberation Mapping of Two Variable Active Galactic Nuclei: Probing the Distinct Characteristics of the Inner and Outer Broad-line Regions by Hai-Cheng Feng, Sha-Sha Li, J. M. Bai, H. T. Liu, Kai-Xing Lu, Yu-Xuan Pang, Mouyuan Sun, Jian-Guo Wang, Yerong Xu, Yang-Wei Zhang, Shuying Zhou

Get full text

Trends and Variability of North Pacific Polar Lows by Fei Chen, Hans von Storch

“…The climatology exhibits strong year-to-year variability but weak decadal variability and a small positive trend. …”
Get full text

Assessing macroinvertebrate species composition in forest streams using LiDAR-based vegetation structure variables by Jana Petruželová, Simon König, Marco Heurich, Jiří Kopáček, Selma de Donnová, Vendula Polášková, Linda Seifert, Vanda Šorfová, Pavel Sroka, Michal Straka, Jindřiška Bojková

Get full text

THE EFFECT OF PRECIPITATION VARIABILITY AND CHANGE ON THE INCREASING DROUGHT RISK IN SOME CLIMATIC REGIONS IN SYRIA DURING THE PERIOD 1958-2018 by M. E. Skaff, L. E. Abboud, E. E. Mahfoud, R. A. Saker

Get full text