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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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
Modified F(R,T)-Gravity Model Coupled with Magnetized Strange Quark Matter Fluid
Published on 2025-02-10 by Mohd Danish Siddiqi, Meraj Ali Khan, Ibrahim Aldayel @MDPI
Abstract: This research note presents the properties of the F(R,T)-gravity model in combination with magnetized strange quark matter. We obtain the equation of state for the magnetized strange quark matter in the F(R,T)-gravity model endowed with the Lagrangian through of Ricci curvature. We also examine the Ricci solitons supported by a time-like conformal vector field in F(R,T)-gravity, attached with magnetized strange quark matter fluid. Within this ongoing research, we give an estimate of the total qu[...]
Our summary: Properties of F(R,T)-gravity model with magnetized strange quark matter. Equation of state and Ricci solitons examined. Estimate of total quark pressure and density in Universe epochs. Study of energy conditions and black hole criteria with Ricci solitons.
F(R,T)-gravity model, magnetized strange quark matter, equation of state, Ricci solitons
Publication
Insights into supermassive black hole mergers from the gravitational wave background
Published on 2025-02-07 by C. M. F. Mingarelli, L. Blecha, T. Bogdanovi?, M. Charisi, S. Chen, A. Escala, B. Goncharov, M. J. Graham, S. Komossa, S. T. McWilliams, D. A. Schwartz, J. Zrake @NATURE
Abstract: Nature Astronomy, Published online: 07 February 2025; doi:10.1038/s41550-025-02482-1At the Kavli Institute for Theoretical Physics, participants of the rapid response workshop on the gravitational wave background explored discrepancies between experimental results and theoretical models for a background originating from supermassive black hole binary mergers. Underestimated theoretical and/or experimental uncertainties are likely to be the explanation. Another key focus was the wide variety of s[...]
Our summary: Insights into supermassive black hole mergers, discrepancies between experimental results, wide variety of search methods, compelling detections
black hole mergers, gravitational wave background, supermassive, theoretical models
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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