Advanced numerical simulations of lid-driven cavity flows using an optimized parallelized fractional step method by Muhammad Abid, Tayyaba Akhtar, Mohamed M. Awad, Muhammad Imran

“…This work presents a numerical simulation of lid-driven cavity flows by solving the incompressible Navier-Stokes equations, with results validated against established benchmarks. The developed code uses a fractional step method combined with second-order Adams-Bashforth time discretization and Crank-Nicolson spatial discretization to achieve both accuracy and stability. …”
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A New Soft Switching Dual-input High Step-up Converter for Renewable Energy Systems by Hayder Ameer Hasan Al-Ameedee, Majid Delshad, Nadheer Abdulridha Shalash, Bahador Fani

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Orbital Angular Momentum (OAM) Mode Mixing in a Bent Step Index Fiber in Perturbation Theory by Ramesh Bhandari

“…Within the framework of perturbation theory, we explore in detail the mixing of orbital angular momentum (OAM) modes due to a fiber bend in a step-index multimode fiber. Using a scalar wave equation, we develop a complete set of analytic expressions for mode-mixing, including those for the <inline-formula><tex-math notation="LaTeX">$2\pi$</tex-math></inline-formula> walk-off length, which is the distance traveled within the bent fiber before an OAM mode transforms into its negative topological charge counterpart, and back into itself. …”
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Queuing Pricing with Time-Varying and Step Tolls: A Mathematical Framework for User Classification and Behavioral Analysis by Chen-Hsiu Laih

“…This study investigates user behavior at a bottleneck under two queuing pricing schemes: the optimal time-varying toll and the optimal multi-step toll. A mathematical model is developed to classify users based on toll status and arrival timing, further distinguishing between normal compliance and deliberate avoidance behaviors. …”
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Two-Step Unconditionally Stable Noniterative Dissipative Displacement Method for Analysis of Nonlinear Structural Dynamics Problems by Changqing Li, Baoyi Sheng, Zhipeng Lai, Lizhong Jiang, Ping Xiang

“…By using a novel approach based on dimensional analysis firstly given by the first author, a one-parameter family of two-step unconditionally stable noniterative displacement algorithms, referred to as the CQ-2x method, is developed. …”
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Enhanced Osteoconductivity of Zirconia Implants with One-Step Femtosecond Laser Treatment Through Morphological and Chemical Modifications by Yuqi Li, Yanzhe Fu, Nan Li, Guanqi Liu, Jiebo Li, Jiao Wen, Jianmin Han

“…In conclusion, the one-step FSL treatment developed a dual-function bioactive zirconia surface, offering an effective method for the biomedical functionalization of zirconia implants.…”
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Repurposing HFC-125 to tetrafluoroethylene: A step toward a more sustainable fluoropolymer feedstock strategy by Hiroto Iwasaki, Naoyuki Hoshiya, Yosuke Kishikawa, Jorge Escorihuela, Norio Shibata

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Two‐Step Design Rule for Simultaneously High Conductivity and Seebeck Coefficient in Conjugated Polymer‐Based Thermoelectrics by Zelong Li, Wei Fu, Dorothea Scheunemann, Xiaoran Wei, Maximilian Litterst, Priya Mariam Viji, Yong Cui, Jianhui Hou, Junhui Tang, Ziqi Liang, Zehua Qu, Martijn Kemerink, Ruiqian Guo, Guangzheng Zuo

“…Abstract The trade‐off between enhancing conductivity (σ) through doping while concurrently observing a reduction in the Seebeck coefficient (S) presents a key challenge in organic thermoelectrics. Here, a two‐step structural design strategy is developed, where the first step enhances the backbone planarity which enhances the conductivity by an improved ordering of conjugated polymers (CPs). …”
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All-in-one inks for one-step printing of solid-state graphene micro-supercapacitors on cellulose substrates by Jian Du, Xiaoqian Zhong, Woo Jin Hyun

“…Printable graphene inks, widely developed for micro-supercapacitors (MSCs), facilitate the fabrication of microscale graphene electrodes with complex interdigitated structures. …”
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Experimental performance investigation on the effect of step change in absorber plate thickness of flat plate solar collector by Md. Shamiul Basar Himel, Mahmudul Hasan, Md. Hasan Ali, Nahyan Ahnaf Pratik, Md Akib Ul Islam, Fahim Tanvir, Adrita Anwar, Md. Jabed Alam

“…The present study investigated the effect of the step-change in absorber plate thickness on the thermal performance of flat plate solar collectors (FPCs). …”
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Step-down infusion of barbiturate improves neurofunction in a new rat model of rebleeding subarachnoid hemorrhage by Sosho Kajiwara, Yu Hasegawa, Kana Fujimori, Motohiro Morioka

“…A novel barbiturate treatment, step-down infusion of barbiturate (sd-B), was previously developed; it showed beneficial effects on patients with severe traumatic brain injuries. …”
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A website for cluster randomised trials including stepped wedge: facilitating quality trials and methodological research by Claire L. Chan, Clémence Leyrat, James Martin, Jennifer Thompson, Elizabeth L. Turner, Sandra M. Eldridge

“…The idea for the website emerged from the conference on Current Developments in Cluster Randomised Trials and Stepped Wedge Designs held in November 2016 at Queen Mary University of London, with the aim to provide an online resource to facilitate quality trials and methodological research on these types of trial. …”
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Context, implementation and mechanisms of impact of a stepped-care WHO psychological intervention for migrants with psychological distress by Beatrice Compri, Giulia Turrini, Marianna Purgato, Richard Bryant, Paula Cristobal, Josep Maria Haro, Raffael Kalisch, Vincent Lorant, David McDaid, Kerry R. McGreevy, Roberto Mediavilla, Michela Nosè, A-La Park, Papoula Petri-Romão, Aurélia Roversi, Marit Sijbrandij, Andrea Tortelli, Anke Witteveen, Corrado Barbui

“…Scalable interventions like Doing What Matters in Times of Stress (DWM) and Problem Management Plus (PM+) have been developed to address these challenges. This study evaluates a stepped-care program combining DWM and PM+ for migrants in Italy, examining its context, implementation, and mechanisms of impact. …”
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Comprehensive Reliability Review and Assessment of Z-Source Step-Up DC&#x2013;DC Converters by Milad Khoubrooy-Eslamloo, Kazem Varesi, Hadi Tarzamni, Sze Sing Lee

“…The Z-source (ZS) or Quasi-ZS converters are among the popular DC&#x2013;DC converters that employ impedance networks to enable a wide output voltage range and step-up capability. These converters typically offer low normalized (per-unit) voltage stress across components. …”
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Performance Evaluation of a Photovoltaic-Thermal Collector Coupled Stepped Solar Still for Indian Climatic Conditions by Ayush Narang, Siddhartha Roy, Tarun Kataray, Vishal Bonde, S. Rajesh, C. Chiranjeevi, Utkarsh Chadha, Bulcha Bekele Hirpha

“…In the present work, a thermodynamic model based on mass and energy balance is developed for the PVT-SSS system, and it is solved by a numerical method. …”
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Numerical and artificial neural network inspired study on step-like-plenum battery thermal management system by Olanrewaju M. Oyewola, Emmanuel T. Idowu

“…Hence, additional study become necessary especially on the step-like plenum design to provide more insight on the performance of the design by considering several number of step, varied air inlet temperature and velocity. …”
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One step further in targeting acute leukemia by combining antibody-based immunotherapies and small molecule inhibitors by Armin Dozandeh-Jouybari, Erfan Rohaninia, Sara Faaliat, Nazanin Joudaki, Sara Ghandi, Maryam Talebi Moghaddam, Saeid Taghiloo, Tohid Kazemi

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A Bayesian Approach to Step-Stress Partially Accelerated Life Testing for a Novel Lifetime Distribution by Mervat K. Abd Elaal, Hebatalla H. Mohammad, Zakiah I. Kalantan, Abeer A. EL-Helbawy, Gannat R. AL-Dayian, Sara M. Behairy, Reda M. Refaey

“…In lifetime testing, the failure times of highly reliable products under normal usage conditions are often impractically long, making direct reliability assessment impractical. To overcome this, step-stress partially accelerated life testing is employed to reduce testing time while preserving data quality. …”
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Effectiveness of second step program in fostering social-emotional skills in young children: a study in Japan by Rikuya Hosokawa, Riho Tomozawa, Megumi Fujimoto

“…Abstract Background Interest in social-emotional skills in the context of school maladjustment is growing, and social-emotional learning can help develop such skills. Second Step is a social-emotional skills approach prevalent in several countries. …”
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Two-step cross-linking method for identification of NF-κB gene network by chromatin immunoprecipitation by David E. Nowak, Bing Tian, Allan R. Brasier

“…In our studies of the genetic network under control of the inducible NF- κB transcription factor, we found that the conventional ChIP technique using a single formaldehyde cross-linking step did not reproducibly cross-link it to DNA. As a result, we have developed a novel ChIP assay using a two-step cross-linking procedure, incorporating N-hydroxysuccinimide (NHS)-ester-mediated protein-protein cross-linking prior to conventional DNA-protein cross-linking. …”
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