Astrophysics
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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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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

Numerical Simulation of Effects of Mold Cavity and Submerged Entry Nozzle on Flow, Heat Transfer and Solidification in Funnel-Type Molds for Thin Slab Casting

Published on 2025-02-11 by Zhaoyang Li, Yao Lu, Rudong Wang, Gengyang Li, Heng Cui @MDPI

Abstract: As the third generation of thin slab continuous casting and rolling technology, endless strip production (ESP) has been widely used in the steelmaking industry. The key equipment in this process, the funnel-type mold, is prone to accidents such as slag entrainment, surface cracks and steel leakage under high casting speed conditions. To reduce the incidence of the above accidents, the numerical model of flow, heat transfer and solidification in the funnel-type mold is established by using the k-[...]


Our summary: Study on effects of mold cavity and submerged entry nozzle on flow, heat transfer, and solidification in funnel-type molds for thin slab casting. Optimizing ESP process through numerical model and MHD. Comparison between type-I and type-II molds and SEN designs. Reducing risk of accidents such as slag entrainment, surface cracks, and steel leakage.

Numerical Simulation, Mold Cavity, Submerged Entry Nozzle, Thin Slab Casting

Publication

Modeling and Simulation of Inter-Satellite Laser Communication for Space-Based Gravitational Wave Detection

Published on 2025-02-11 by Haoqian Liang, Zhaoxiang Yi, Hongling Ling, Kai Luo @MDPI

Abstract: Space-based gravitational wave detection uses an equilateral triangular satellite constellation with inter-satellite laser heterodyne interferometry to measure displacement variations caused by gravitational waves. Inter-satellite laser communication is critical for data transmission, redundancy and clock synchronization, which suppresses clock noise and enhances detection sensitivity. This integrated approach ensures precise gravitational wave information extraction, supporting the high-accurac[...]


Our summary: Equilateral triangular satellite constellation with laser interferometry measures displacement caused by gravitational waves. Laser communication critical for data transmission, redundancy, and clock synchronization. Study focuses on modeling and simulating laser communication for precise gravitational wave detection.

Inter-Satellite Laser Communication, Space-Based Gravitational Wave Detection, Modeling, Simulation

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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