Skip Content
You are currently on the new version of our website. Access the old version .

Physics, Volume 7, Issue 4

2025 December - 25 articles

Cover Story: A nonlinear dynamic model is developed to analyse the stability and vibration behaviour of self-balancing electric Segways operating on irregular stochastic terrains. The study incorporates ISO 8608-based road profiles, elastic damping effects, and stochastic excitation. The investigation examines how road roughness and forward speed influence the stability response, with particular focus on critical velocity thresholds and the onset of resonance effects. The results delineate parameter regions where balance is gradually degraded, enabling the isolation of key control-related variables. Such insights support the development of stability-oriented control strategies aimed at sustaining balanced Segway operation across a wide range of stochastic terrain conditions. View this paper
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (25)

  • Article
  • Open Access
382 Views
15 Pages

18 December 2025

By solving the three-dimensional Schrödinger equation with a second-order implicit Finite Difference Method (FDM), the combined effects of temperature, morphology, hydrostatic pressure, and transverse electric field on the nonlinear optical rect...

  • Article
  • Open Access
506 Views
13 Pages

Custom Mobile Application Development for Demonstrating Malus’s Law Using LEGO EV3 and Integrated Light Sensors

  • Uriel Rivera-Ortega,
  • Antonio Barcelata-Pinzon and
  • Griselda Saldaña-Gonzalez

16 December 2025

In this study, we present the custom development and implementation of a mobile application designed specifically to experiment with Malus’s law, leveraging the integration of a LEGO EV3 and the light sensor of a mobile device. Unlike previous...

  • Article
  • Open Access
433 Views
12 Pages

12 December 2025

The quantizer–dequantizer method is employed. Using the construction of probability distributions describing density operators of a quantum system states, the connection between the Feynman path integral and the time evolution of the density op...

  • Article
  • Open Access
1 Citations
482 Views
12 Pages

9 December 2025

Over the past thirty years, the focus in singular optics has been on structured beams carrying orbital angular momentum (OAM) for diverse applications in science and technology. However, as practice has shown, the OAM-free structured Gaussian beams w...

  • Article
  • Open Access
1,182 Views
17 Pages

Concept of UCN Source at WWR-K Reactor (AlSUN)

  • Sayabek Sakhiyev,
  • Kylyshbek Turlybekuly,
  • Asset Shaimerdenov,
  • Darkhan Sairanbayev,
  • Avganbek Sabidolda,
  • Zhanibek Kurmanaliyev,
  • Akzhol Almukhametov,
  • Olzhas Bayakhmetov,
  • Ruslan Kiryanov and
  • Khac Tuyen Pham
  • + 5 authors

5 December 2025

We present the concept of an ultracold neutron (UCN) source with a superfluid He-4 (SF 4He) converter located in the thermal column of the WWR-K research reactor at the Institute of Nuclear Physics (INP) in Almaty, Kazakhstan. The conceptual design i...

  • Article
  • Open Access
523 Views
17 Pages

1 December 2025

We establish a general, device-oriented procedure to extract absolute pump-band metrics from room-temperature UV–Vis (ultraviolet–visible) absorbance—including the absorption coefficient α(λ), per-active-ion cross-secti...

  • Review
  • Open Access
989 Views
19 Pages

1 December 2025

BU–MIT whistler wave injection experiments, which were conducted at Arecibo Observatory, started with the joint US–USSR Active Space Plasma Program Experiment on 24 December 1989. In this experiment, a satellite-borne VLF transmitter inje...

  • Article
  • Open Access
588 Views
20 Pages

The Influence of the Inelastic Electron–Phonon Collision Time on the Resistive State of 3D Superconducting Materials

  • Lucas Veneziani de Toledo,
  • Breno Justen de Castro Moreira,
  • Leonardo Rodrigues Cadorim and
  • Edson Sardella

26 November 2025

This study investigates the influence of inelastic electron–phonon collision time (τe-ph) on the behavior of the resistive state of three-dimensional superconducting systems. Using the generalized time-dependent Ginzburg–Landau formal...

  • Article
  • Open Access
846 Views
16 Pages

On Cavitons Generated by the Nonlinear Plasma Waves in HF Heating Experiments at HAARP

  • Spencer Kuo,
  • Min-Chang Lee,
  • Arnold Snyder and
  • Brenton Watkins

12 November 2025

Analysis of nonlinear plasma waves, formulated and applied for ionospheric HF heating experiments, indicates that Langmuir/upper hybrid waves excited by parametric instabilities can evolve into traveling solitary waves accompanied by self-induced cav...

of 3

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
Physics - ISSN 2624-8174