The behavior of the Earth’s middle atmosphere and ionosphere is governed by multiple processes resulting not only from downward energy transfer Sun magnetosphere but also upward terrestrial weather. Understanding relative importance mechanisms beyond solar geomagnetic activity essential for progress in multi-day predictions atmosphere-ionosphere system. recent development research infrastructur...

We explore the effects of 2029 Earth encounter on asteroid (99942) Apophis' non-principal axis spin state, leveraging refined orbit, and inertia information provided by more recent optical radar observations. Propagating asteroids' coupled orbit rigid body attitude dynamics through flyby, we present range possible post-flyby states. These state distributions will be valuable for planning Apophi...

In many animals, primordial germ cells (PGCs) migrate through the embryo towards the future gonad, a process guided by attractive and repulsive cues provided from surrounding somatic cells. In Drosophila, the two related lipid phosphate phosphatases (LPPs), Wunen (Wun) and Wun2, are thought to degrade extracellular substrates and to act redundantly in somatic cells to provide a repulsive enviro...

In this paper, an additive self-tuning (ST) control scheme is presented for a static synchronous series compensator (SSSC) to improve performance of conventional PI control system for damping sub-synchronous resonance (SSR) oscillations. The active and reactve series compensation are provided by a three-level 24-pulse SSSC and fixed capacitor. The proposed ST controller consists of a pole shift...

Nowadays the use of the Switched Reluctance Motors (SRMs) has been considerably increased in various home and industrial applications. Despite of many advantages of this type of motors, such as simple structure, low cost, and high reliability, the main disadvantage of them is the generation of high torque pulsation. This paper presents a novel method to optimize a typical SRM such that the torq...

Quadrature-axis reactance for various reasons comes into account as one of the most important parameters of salient pole synchronous machine. There are several common standard methods for measuring this parameter that also have been explained with some details in the standards, scientific papers and text books. One of these methods is the maximum lagging current test that is done simply at no-l...

A specific representation of the known one-loop EW correction to relation between pole and running $$\overline {{\text{MS}}} $$ -scheme masses top-quark through particle Standard Model is given within Fleischer–Jegerlehner tadpole scheme, where vacuum expectation value Higgs field renormalized. The importance taking into account both QCD effects in this considered case emphasized. It noted that...

Superconducting planar-transmission-line resonators play an increasingly important role in applications such as astronomical detection and circuit quantum electrodynamics. When measuring the transmission response of array resonators, however, one often observes some spurious resonances besides intrinsic ones. In this letter, effect cavity accommodating a half-wavelength superconducting microstr...