Technobius Physics https://technobius.kz/index.php/phys <p><em>Technobius Physics</em> - is a peer-reviewed open-access electronic journal that publishes Articles and (or) Reviews in the fields of General Physics and Condensed Matter Physics, which meet the <a href="https://technobius.kz/index.php/phys/about/submissions#authorGuidelines" target="_blank" rel="noopener"><strong>Author Guidelines</strong></a>.</p> <p><strong>ISSN (Online): <a href="https://portal.issn.org/resource/ISSN/3007-0147" target="_blank" rel="noopener">3007-0147</a></strong></p> <p><strong>Publisher's name:</strong> Technobius, LLP.</p> Technobius, LLP en-US Technobius Physics 3007-0147 Probing molecular architectures and interactions with scanning tunneling microscopy on graphite and arachidic acid functionalized surfaces https://technobius.kz/index.php/phys/article/view/138 <p>This study investigates the application of scanning tunneling microscopy in exploring molecular structures and interfaces relevant to nanotechnology. Graphite was selected as a sample due to its ease of visualization of atomic arrangements and surface inertness. The surface of highly oriented pyrolytic graphite treated with arachidic acid (C20H32O2) was examined to gain insights into the behavior of organic molecules at liquid-solid interfaces. Through detailed observations, the study demonstrates the versatility of scanning tunneling microscopy in elucidating molecular architectures and interactions. The findings underscore the importance of scanning tunneling microscopy in advancing our understanding of molecular systems and driving progress in nanotechnology applications. This work highlights the pivotal role of scanning tunneling microscopy in unraveling the complexities of nanoscale phenomena and fostering future innovations in the field.</p> Medet Mustafin Copyright (c) 2024 Technobius Physics https://creativecommons.org/licenses/by-nc/4.0 2024-04-17 2024-04-17 2 2 0010 0010 10.54355/tbusphys/2.2.2024.0010 Optimizing ultrasound Doppler measurement precision: a comprehensive experimental approach https://technobius.kz/index.php/phys/article/view/141 <p>Experimental studies were conducted utilizing advanced equipment comprising a generator, tubing system, pump module, sonographer, and PC. The generator serves as the central component connected by tubes to the pump, forming a closed circuit. A tee in the tubing set prevents Doppler fluid leakage, with the fluid poured through a special funnel into the circuit post-connection. The Doppler fluid is evenly mixed by shaking its bottle to enhance signal strength. The entire system is sealed. The centrifugal pump generates continuous flows; different power modes were tested for 30 minutes each, with frequency shifts measured at angles α=15°, 30°, and 60°. Pump disconnection from the power supply prevents liquid entry during tubing connection. The pump module housing includes ventilation holes. A 3 by 8 cm Doppler prism, treated with ultrasonic gel, was connected to the tubing to capture data. A sonographer emitting signals at 2 MHz, with a gain range of 10 to 40 dB, was utilized for sound spectra analysis. High-mode operation, 4 microseconds pulse duration, and a 32 microseconds receiver gate were set. The ultrasound apparatus dimensions were 230 x 236 x 168 mm, with a power consumption of 27 VA. Data visualization was facilitated by an LED panel, with adjustable acoustic signal volume. A USB interface enabled connection to a PC for ease of use and data analysis. Special software facilitated graph generation depicting frequency vs. time dependence measurements. Frequency analysis yielded average (f-mean) and maximum (f-max) frequency values, with f-mean utilized to measure Doppler effect frequency shift. The presented data showcases various pump speeds and incidence angles, each yielding distinctive frequency characteristics.</p> Alima Aidarbek Copyright (c) 2024 Technobius Physics https://creativecommons.org/licenses/by-nc/4.0 2024-04-22 2024-04-22 2 2 0011 0011 10.54355/tbusphys/2.2.2024.0011 Spectral characterization of elemental emissions, experimental insights and theoretical evaluation https://technobius.kz/index.php/phys/article/view/143 <p>This experimental study delves into the spectral analysis of five discrete spectral lamps, namely helium, sodium, mercury, cadmium and zinc, utilizing a suite of scientific instrumentation including an optical spectrometer with converging lenses and a diffraction grating. The primary objective is to determine the wavelengths corresponding to visible spectral lines emitted by these lamps. Calibration of the spectrometer with the helium lamp facilitated the derivation of the diffraction grating constant. Subsequent measurements of diffraction angles allowed for the computation of experimental wavelengths, which were then compared with theoretical values. Analysis revealed slight discrepancies between experimental and theoretical values, likely attributed to systematic errors such as extraneous light sources and parallax errors in angle measurements. Furthermore, examination of spectral line splitting demonstrated the removal of degeneracy within specified energy levels, resulting in the observation of distinct spectral components. Overall, this study underscores the significance of meticulous experimental techniques in the elucidation of fundamental physical phenomena and highlights the interplay between theory and observation in spectral analysis.</p> Islam Amangeldinov Dmitri Korovaev Copyright (c) 2024 Technobius Physics https://creativecommons.org/licenses/by-nc/4.0 2024-04-23 2024-04-23 2 2 0012 0012 10.54355/tbusphys/2.2.2024.0012 Comprehensive analysis of solar cell behavior: effects of light intensity, temperature, and operational modes https://technobius.kz/index.php/phys/article/view/146 <p>This study investigates the current-voltage characteristics of a solar cell under varying light intensities, temperatures, and operational conditions to comprehensively assess its performance. The experimental approach involves measuring short-circuit current and open-circuit voltage at different light intensities and constructing current-voltage curves to analyze the solar cell's response to changing illumination levels. The dependence of open-circuit voltage and short-circuit current on temperature is also estimated to understand thermal influences on the solar cell's electrical properties. Additionally, the solar cell's behavior is examined under different operational modes, including cooling with a blower, operation without cooling, and light filtration through a glass plate. The corresponding current-voltage characteristics are plotted to evaluate the impact of thermal management and light modulation on the solar cell's efficiency and stability. Furthermore, the characteristic curve of the solar cell is determined under natural sunlight illumination to simulate real-world conditions. The findings provide valuable insights into optimizing solar cell performance for practical applications and sustainable energy systems. This research contributes to advancing our understanding of solar cell behavior under diverse environmental and operational settings, with implications for enhancing solar energy utilization and promoting renewable energy technologies. Future studies will focus on refining solar cell design and operation based on these insights to maximize efficiency and reliability in solar power generation.</p> Ersaiyn Bekbolsynov Copyright (c) 2023 Technobius Physics https://creativecommons.org/licenses/by-nc/4.0 2023-05-03 2023-05-03 2 2 0013 0013 10.54355/tbusphys/2.2.2024.0013 Cooling and heating innovations: exploring the diverse applications of heat pumps https://technobius.kz/index.php/phys/article/view/147 <p>Heat pumps are versatile and energy-efficient devices that play a crucial role in modern heating, cooling, and refrigeration applications. This abstract provides a concise overview of the diverse applications and benefits of heat pumps across residential, commercial, industrial, and transportation sectors. The abstract discusses the principles of heat pump operation, emphasizing their capability to transfer heat from one location to another using thermodynamic processes. The abstract highlights key applications such as residential heating, ventilation, and air conditioning systems, commercial refrigeration, hot water heating, process cooling, and renewable energy integration. The energy efficiency and environmental benefits of heat pumps are also emphasized, showcasing their potential to reduce carbon emissions and contribute to sustainable energy practices. By understanding the broad scope of heat pump applications outlined in this abstract, researchers, engineers, policymakers, and industry stakeholders can gain insights into the significance of heat pump technology in advancing energy efficiency and addressing climate change challenges.</p> Karina Mussabekova Aliya Nurbayeva Copyright (c) 2024 Technobius Physics https://creativecommons.org/licenses/by-nc/4.0 2024-05-03 2024-05-03 2 2 0014 0014 10.54355/tbusphys/2.2.2024.0014