Latest Publications & Patents on Astrophysics
This is our latest selection of worldwide publications and patents in english on Astrophysics, between many scientific online journals, classified and focused on astrophysic, neutron star, supernova, black hole, cosmic microwave, CMBR, quasar, redshift, accretion disk, dark matter, cosmic inflation, magnetohydrodynamic, dark energy, Hubble, event horizon, gravitational wave, exoplanet, red giant, white dwarf and red shift.
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Synthesis, Luminescent and Antibacterial Properties of Sol-Gel TiO2/TeO2/Nb2O5 Powders
Published on 2025-02-21 by Kalina Ivanova, Albena Bachvarova-Nedelcheva, Reni Iordanova, Angelina Stoyanova, Petia Petrova, Lilia Yordanova, Iliana Ivanova @MDPI
Abstract: The present paper deals with the synthesis, characterization, and properties of sol-gel-derived TiO2/TeO2/Nb2O5 nanopowders. The gels were prepared using a combination of organic [Ti (IV) n-butoxide, Nb (V) ethoxide (C10H25NbO5)] and inorganic [telluric acid (H6TeO6)] precursors. The aging of gels was performed in air for several days in order to enable further hydrolysis. The phase formation of the gels was investigated by XRD upon heating in the temperature range of 200–700 &[...]
Our summary: Synthesis, characterization, and properties of TiO2/TeO2/Nb2O5 nanopowders. Gels prepared using organic and inorganic precursors, aged in air, and heat-treated to form crystalline phases. UV-Vis and photoluminescence analyses, photocatalytic activity, and antibacterial properties against E. coli demonstrated. Prospective environmental catalysts.
Sol-Gel, TiO2, Luminescent, Antibacterial
Publication
Parameter Design for Inter-Satellite Laser Link Acquisition Under Weak Light Conditions
Published on 2025-02-20 by Mengyang Zhao, Jia Shen, Juan Wang, Pan Li, Ruihong Gao, Ziren Luo @MDPI
Abstract: For the Taiji program or other LISA-like space-based gravitational wave (GW) detection missions, establishing laser links is a prerequisite for entering the normal science mode. There has been a lack of in-depth research on inter-satellite link acquisition under weak light and low-speed conditions. In this paper, we comprehensively analyze the impact of key parameters, including scan speed, track width, acquisition camera integration time, and jitter, on the acquisition process. By introducing l[...]
Our summary: Analyzing key parameters for laser link acquisition under weak light conditions, deriving analytical expression for acquisition failure probability, and optimizing parameters for minimal acquisition time.
Parameter Design, Inter-Satellite Laser Link, Weak Light Conditions, Acquisition Process
Publication
Formation Mechanism and Motion Characteristics of Multiple Jets in Spherical Section Free Surface Electrospinning
Published on 2025-02-19 by Jing Yin, Lan Xu @MDPI
Abstract: In this study, during the efficient preparation of nanofibers using a spherical section free surface electrospinning (SSFSE) device with different sphere radii, the formation mechanism and motion characteristics of multiple jets were thoroughly investigated through the numerical simulation method. The mechanical model of multiple jets was established, and the key role of electric field intensity in the formation and motion of jets was defined; in addition, the relationship between the jet initia[...]
Our summary: Investigation of multiple jets formation and motion in spherical section free surface electrospinning through numerical simulation. Establishment of mechanical model and key role of electric field intensity. Determination of optimal device for efficient nanofiber preparation.
Formation Mechanism, Motion Characteristics, Spherical Section, Free Surface
Publication
Review of Conductive Reciprocating Liquid Metal Magnetohydrodynamic Generators
Published on 2025-02-17 by Lingzhi Zhao, Aiwu Peng @MDPI
Abstract: Reciprocating liquid metal magnetohydrodynamic (MHD) power generation is a new MHD power generation method in which the working fluid is a single-phase liquid metal with a low melting point and high conductivity. The internal combustion stroke of automobiles, ocean waves, sound waves and other reciprocating external forces drive the liquid metal to flow back and forth in an applied magnetic field, generating single-phase alternating current (AC) energy. Reciprocating liquid metal MHD (LMMHD) pow[...]
Our summary: Review of Conductive Reciprocating Liquid Metal Magnetohydrodynamic Generators. Reciprocating liquid metal magnetohydrodynamic (MHD) power generation is a new method using single-phase liquid metal with high conductivity. It generates AC energy through reciprocating external forces in an applied magnetic field, providing high power density and efficiency for various applications.
Conductive, Reciprocating, Liquid Metal, Magnetohydrodynamic
Publication
Generalized Solvent Effect on the Fluorescence Performance of Spiropyran for Advanced Quick Response Code Dynamic Anti-Counterfeiting Sensing
Published on 2025-02-12 by Junji Xuan, Lingjie Chen, Jintao Tian @MDPI
Abstract: Spiropyran has an attractive and mysterious fluorescence switch and dual-color conversion characteristics, as it exhibits both aggregation-caused quenching (ACQ) in solvents and fluorescence enhancement in polymer matrices. The explanation for this phenomenon has always been of great controversy. Hence, the solvent effect on the emission of spiropyran (SP) was investigated in 16 solvents. By means of molecular orbital theory and the Jablonski diagram, several special parameters (e.g., Hansen sol[...]
Our summary: Investigation of solvent effect on spiropyran fluorescence, explanation of unique properties, proposal of generalized solvent effect, improvement of anti-counterfeiting QR code sensor.
solvent effect, fluorescence performance, spiropyran, anti-counterfeiting
Publication
Neural Network Modeling of CuO/Au Hybrid Nanofluid Thermal Performance with Slip Effects for Advanced Process Applications
Published on 2025-02-12 by Jyothi Kotike, Omprakash Beedalannagari, Leelavathi Rekapalli, Muhammad Usman, Kalyani Radha Kadavakollu @MDPI
Abstract: This study explores transient magnetohydrodynamic (MHD) heat and mass transfer in the flow of a hybrid nanofluid over a stretching surface, considering both steady and unsteady scenarios. The investigation incorporates chemical reactions, slip boundary conditions, and the effects of thermal radiation. The hybrid nanofluid, composed of copper oxide (CuO) and gold (Au) nanoparticles in a water-based fluid, demonstrates enhanced thermal performance compared with base fluids. Key findings reveal tha[...]
Our summary: Transient MHD heat and mass transfer in hybrid nanofluid over stretching surface with chemical reactions, slip boundary conditions, and thermal radiation. Higher nanoparticle concentrations improve heat transfer, machine learning models predict characteristics accurately, contributing to understanding of hybrid nanofluids in thermal systems.
Neural Network Modeling, CuO/Au Hybrid Nanofluid, Thermal Performance, Slip Effects
Publication
A lighting control system for the entrance section of a highway tunnel to alleviate the "black hole effect"
Patent published on the 2024-11-14 in LU under Ref LU507220 by UNIV CHONGQING JIAOTONG [CN] (Yang Hongyun [cn])
Abstract: This invention belongs to the field of highway tunnel lighting technology and specifically involves a lighting control system for the entrance section of a highway tunnel to mitigate the black hole effect. It includes a data acquisition module, a control center module, and a load circuit. The data acquisition module comprises tunnel entrance visibility sensors, air temperature sensors, meteorological detection devices, and tunnel interior color temperature sensors. The visibility sensor detects [...]
Our summary: Entrance section lighting control system, field of highway tunnel lighting, data acquisition module with sensors, real-time monitoring and control center
highway tunnel lighting technology, lighting control system, data acquisition module, black hole effect
Patent
Giant swamp taro (cyrtosperma merkusii) cookies
Patent published on the 2023-05-26 in PH under Ref PH2202205136 by ROMBLON STATE UNIV [PH] (Erispe Jannette S [ph], Ipedro Raymund R [ph], Juanzo Clara Jean M [ph])
Abstract: A method of producing giant swamp taro (Cyrtosperma merkusii) cookies comprising the steps of, gathering giant swamp taro plant, cutting, washing, peeling, slicing, drying the sliced corm by sun-drying, grinding, powderizing, preparing all ingredients consisting of powdered corm, baking soda, salt, granulated sugar, brown sugar, butter, eggs, and vanilla extract, preheat the oven, lining a cookie sheet with parchment paper, sifting the powdered giant swamp taro, baking soda, salt and granulated [...]
Our summary: Method of producing giant swamp taro cookies includes gathering, cutting, washing, peeling, slicing, drying, grinding, powderizing, preparing ingredients, baking, and cooling.
giant swamp taro, cookies, method, production
Patent
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