Adaptive Jamming Suppression in Coherent FFH System Using Weighted Equal Gain Combining Receiver over Fading Channels with Imperfect CSI by Yishan He, Yufan Cheng, Gang Wu, Binhong Dong, Shaoqian Li

“…Fast frequency hopping (FFH) is commonly used as an antijamming communication method. In this paper, we propose efficient adaptive jamming suppression schemes for binary phase shift keying (BPSK) based coherent FFH system, namely, weighted equal gain combining (W-EGC) with the optimum and suboptimum weighting coefficient. …”
Get full text

Digital Frequency-Domain MIMO Equalizer Enabling Six-LP-Mode Strong-Coupling IM/DD MDM Optical Transmission System by Jianyu Long, Chen Wang, Ying Wu, Bohan Sang, Chengzhen Bian, Xiongwei Yang, Long Zhang, Yifan Chen, Qinyi Zhang, Ying Wang, Yichen Li, Wen Zhou, Kaihui Wang, Bo Liu, Lei Shen, Jianjun Yu

“…The proposed method facilitated by flexible DSP software offers an alternative for short-reach communication systems and has the potential to advance the practical application of MDM techniques in the future.…”
Get full text

Adaptive Equalizer Using Selective Partial Update Algorithm and Selective Regressor Affine Projection Algorithm over Shallow Water Acoustic Channels by Masoumeh Soflaei, Paeiz Azmi

“…In this paper, we apply the family of selective regressor affine projection algorithms (SR-APA) and the family of selective partial update APA (SPU-APA) which have low computational complexity that is one of the important factors that influences adaptive equalizer performance. We apply experimental data from Strait of Hormuz for examining the efficiency of the proposed methods over shallow water channel. …”
Get full text

Are men's gender equality beliefs associated with self-reported intimate partner violence perpetration? A state-level analysis of California men. by Kalysha Closson, Nicole E Johns, Anita Raj

“…<h4>Methods</h4>We analyzed men's data (N = 3609) from three waves (2021, 2022, and 2023) of cross-sectional data from a statewide sample of California adults. …”
Get full text

Measurement of Optical Path Difference of Point-Ahead Angle Mechanism with a Multi-Layer Thermal Insulated Equal-Arm Heterodyne Interferometer by Yue Guo, Jinke Yang, Hongxing Qi, Lingqiang Meng, Jianjun Jia

“…This corresponds to an 84.6% noise reduction at 1 mHz compared to similar unshielded interferometers utilizing conventional bonding methods, demonstrating that the proposed system effectively suppresses measurement noises, particularly thermal noise, in the low-frequency range.…”
Get full text

Low-Light Image Enhancement via New Intuitionistic Fuzzy Generator-Based Retinex Approach by M. S. Ragavendirane, S. Dhanasekar

“…It employs the intuitionistic fuzzy generator (IFG) and the histogram equalization Retinex (HER) to enhance contrast in low-light and dark images, thereby maintaining color constancy. …”
Get full text

Removal of p-nitrophenol from aqueous environments by UV/S2O82- process in a continuous photoreactor: Optimization by Taguchi method by Seyyed Hamed Zafari

“…The present research was an attempt to investigate the removal of an organic pollutant called p-nitrophenol (PNP) using the UV/S2O82- process in a continuous annular photoreactor in order to optimize the operating conditions effective in the efficiency of the process through the Taguchi method. According to the results of the Taguchi method, the optimal conditions for initial concentration of PNP was equal to 40 mg L-1 with pH equal to 3 and S2O82- concentration equal to 18 mM in a residence time of 17.24 min. …”
Get full text

Transformation of Coordinates of Boundary Points of Neighboring Mining Areas Using an Authorial Procedure Based on the Method of Independent Models—A Case Study by Monika Żogała, Violetta Sokoła-Szewioła, Marian Poniewiera

“…An authorial transformation procedure has been developed based on the method of independent models, which makes it possible to obtain the equal coordinates of identical boundary points using the transformation procedure. …”
Get full text

SELECTION A METHOD FOR ESTIMATING THE VALUES OF COMMON FACTORS FOR INDIVIDUAL OBJECTS IN THE FACTORIAL ANALYSIS AND THEIR COMPARISON WITH ZERO LOADS ON SOME SPECIFIC FACTORS by Viktor B. Turundaevsky, Irina V. Orlova

“…However, these methods cannot be used if the variance of some specific factors equal to zero. …”
Get full text

Low-Carbon Steel Formed by DRECE Method with Hot-Dip Zinc Galvanizing and Potentiodynamic Polarization Tests to Study Its Corrosion Behavior by Jiřina Vontorová, Vlastimil Novák, Petra Váňová

“…Our study focuses on the practical benefits of the dual rolling equal channel extrusion (DRECE) method, which strengthens the steel and has implications for material hardness and the thickness of subsequently applied hot-dip zinc galvanizing. …”
Get full text

Compound ultrasonic vibration systems with a complex disk tool: Local resonance characteristics, FEM-based modal analysis, and design method by Cunying Zhang, Wenbo Bie, Yu Liu, Fan Chen

“…Thus, a reliable design method for ultrasonic vibration cutting systems with complex disk tools has been provided.…”
Get full text

Numerical Simulation Research of Smooth Wall Blasting Using the Timing Sequence Control Method under Different Primary Blast Hole Shapes by XinPing Li, JunLin Lv, JunHong Huang, Yi Luo, TingTing Liu

“…To make sure the integrity and stability of surrounding rock structure during blasting excavation of important structural planes in deep underground caverns, two kinds of fine blasting methods, timing sequence control fracture blasting network and notch blast hole, are innovatively combined and the formation of cracks between smooth blasting holes with different delay initiation and different shapes of primary blast holes (PBHs) are compared and analyzed. …”
Get full text

Which Surgical Decompression Method to Choose for Acute Upper Urinary Obstruction Due to Stones? A Comparison of JJ Stenting and Percutaneous Nephrostomy by Ali Ayrancı, Faruk Özgör

“…In this study, we aimed to compare the two treatment approaches in terms of success and complications. Material and Methods: Between January 2017 and January 2022, patients who underwent emergency JJ stent and emergency nephrostomy catheter insertion due to ureteral stones in a tertiary healthcare institution were retrospectively analyzed. …”
Get full text

Is radio an effective method for delivering actionable information for responding to emerging pest threats? A case study of fall armyworm campaign in Zambia by Harrison Rware, Monica K. Kansiime, Idah Mugambi, David Onyango, Justice A. Tambo, Catherine Mloza Banda, Noah A. Phiri, Gilson Chipabika, Mathews Matimelo, Dorcus Chaaba, Tamsin Davis, Julien Godwin

“…We also assessed the factors determining farmers’ participation in radio campaign, to inform future and similar campaigns. Methods Data were gathered through a household survey targeting locations where the campaign was implemented; and 250 male and 215 female farmers were surveyed. …”
Get full text

Functionalisation of AgInS2/ZnS TQDs with 4-aminophenyl boronic acid for the development of a spectrofluorometric method for digoxin determination in pharmaceutical samples by Jose A. Rodriguez, Alfredo Guevara-Lara, Carlos Ángel-Jijón, Raybel Muñoz

“…The developed method was validated using a t-test for equal variances by comparing the mean concentration digoxin obtained of samples analysed by triplicate to the mean of a HPLC-UV methodology, resulting in an adequate accuracy. …”
Get full text

Prediction of volumetric radiation effect on natural convection with high Rayleigh number using lattice Boltzmann-control volume finite element method by Mohieddine Ben Salah, Ayoub Msaddak, Talal Alqahtani, Salem Algarni, Faouzi Askri, Badr M. Alshammari, Lioua Kolsi

“…For example, for a Rayleigh number equal to 103, the LB–CVFEM is forty-eight times rapid than the LB–FVM method, and for a Rayleigh number set to 106, the proposed numerical approach takes 8 days, whereas the LB-FVM needs 16 days, iii) for 106 Rayleigh number case which investigated by few published works, there is a development of small recirculation zones in the vicinity of the top and bottom left corners of the cavity, and iv) the radiation effect increases with the extinction coefficient; however, it decreases with the increase of scattering albedo.…”
Get full text

Engineering Safety-Oriented Blasting-Induced Seismic Wave Signal Processing: An EMD Endpoint Suppression Method Based on Multi-Scale Feature by Miao Sun, Jing Wu, Yani Lu, Fangda Yu, Hang Zhou

“…To verify the algorithm’s effectiveness in suppressing EMD endpoint effects, comparative studies were conducted using simulated signals to compare the proposed method with mirror extension, polynomial fitting, and extreme value extension methods. …”
Get full text

METHODICAL APPROACH TO THE DETERMINATION OF THE ANTIOXIDANT ACTIVITY OF THE ECHINACEA PURPUREA AND MONARDA FISTULOSA TINCTURES AS A QUALITY CRITERION OF THE DEVELOPMENT OF THEIR CO... by Oksana Yezerska, Nataliia Hudz, Lesya Kobylinska, Anna Filipska, Vira Turkina, Jan Brindza, Piotr Pawel Wieczorek

“…Materials and Methods. The following methods were used: analysis, synthesis, systematization, and comparison for processing of published scientific data on antioxidant activity; method for measuring the particle size of raw herbal materials; maceration and remaceration methods for obtaining the tested tinctures; DPPH test for the valuation of the antioxidant activity of the developed tinctures. …”
Get full text

Development and Validation of the HPLC Method for Quantification of the Innovative Drug DD217, Factor Xa Inhibitor, in Rat Plasma for a Pharmacokinetic Study by N. S. Dubovik, D. F. Guranda, G. V. Ramenskaya, D. G. Tovbin, D. N. Tarasov, A. Yu. Savchenko, V. S. Arnautov

“…The aim of this study was to develop and validate a method for DD217 determination in rat plasma by means of high-performance liquid chromatography–tandem mass spectrometry (HPLC-MS/MS) to carry out pharmacokinetic studies.Materials and methods. …”
Get full text

Expert System for the Selection of the Rational Method for Collecting and Processing Information During Russian Census Based on Geographical and Socio-Economic Characteristics of R... by O. V. Manzhula

“…However, as the experience of the trial population census – 2018 demonstrated, one method of collecting information about the population cannot be equally efficient in all regions of Russia, due to the different attitude of the population to the methods of collecting information, as well as the conditions for the availability of information and communication technologies (ICTs) to the population in each region.The experience gained indicates the need for each region to choose the method of collecting and primary processing of statistical information about the population for each region based on a combination of Internet, mobile and traditional technologies that is adaptive to the regional conditions of the population census (remoteness and inaccessibility of some regions, the unreadiness of individual segments of the population to use modern ICTs for collecting information, Internet accessibility in various regions, different attitude of the population to census methods). …”
Get full text