OBSERVATIONAL CHARACTERISTICS OF OSCILLATIONS AND WAVES IN AND AROUND SUNSPOTS. DIFFICULTIES IN OBSERVING AND INTERPRETING

Observational characteristics of oscillations and waves in and around sunspots. Difficulties in observing and interpreting

This paper summarizes the body of work that we have done over the years on the oscillation processes in sunspots, including their umbra, penumbra, and close vicinity.The study analyzes a number of aspects that impede adequate determining of some characteristics of propagating oscillations and lead to misinterpretation.Using running penumbral waves

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Effects of screw end face structural parameters on polylactic acid flow field in meshing counter rotating twin screw extruder

Objective: To investigate the effect of the screw configuration on the polylactic acid flow field on the structural parameters of the screw on the end face of the screw in the meshing counter rotating twin screw extruder.Methods: The theoretical model of the heterodirectional double-ended threaded element was established by Solidworks software and

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PEMANFAATAN KULIT BUAH NAGA SUPER MERAH (Hylicereus costaricensis) SEBAGAI SUMBER ANTIOKSIDAN DAN PEWARNA ALAMI PADA PEMBUATAN JELLY

Dalam penelitian sebelumnya ekstrak kulit buah naga super merah (Hylocereus costaricensis) dengan pelarut air mengandung 1,1 mg/100 ml antosianin.Antosianin dapat berfungsi untuk merendahkan kadar kolesterol dalam darah.Oleh karenanya kulit buah naga super merah dapat dimanfaaatkan untuk pembuatan jelly.Penelitian ini Pop! Albums bertujuan untuk me

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Hydrogel platform facilitating astrocytic differentiation through cell mechanosensing and YAP-mediated transcription

Astrocytes are multifunctional glial cells that are essential for brain functioning.Most existing methods to induce astrocytes from stem cells are inefficient, requiring couples of weeks.Here, we designed an alginate hydrogel-based method to realize high-efficiency astrocytic differentiation from human neural stem cells.Comparing to the conventiona

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