A Mission Concept to Determine the Magnetospheric Causes of Aurora

Insufficiently accurate magnetic-field-line mapping between the aurora and the equatorial magnetosphere prevents us from determining the cause of many types of aurora. An important example is the longstanding question of how the magnetosphere drives low-latitude (growth-phase) auroral arcs: a large number of diverse generator mechanisms have been hypothesized but equatorial magnetospheric measurements cannot be unambiguously connected to arcs in the ionosphere, preventing the community from identifying the correct generator mechanisms. Here a mission concept is described to solve the magnetic-connection problem. From an equatorial instrumented spacecraft, a powerful energetic-electron beam is fired into the atmospheric loss cone resulting in an optical beam spot in the upper atmosphere that can be optically imaged from the ground, putting the magnetic connection of the equatorial spacecraft’s measurements into the context of the aurora. Multiple technical challenges that must be overcome for this mission concept are discussed: these include spacecraft charging, beam dynamics, beam stability, detection of the beam spot in the presence of aurora, and the safety of nearby spacecraft.

On the Connection Problem for Painlevé Differential Equation in View of Geometric Function Theory

Asymptotic analysis is a branch of mathematical analysis that describes the limiting behavior of the function. This behavior appears when we study the solution of differential equations analytically. The recent work deals with a special class of third type of Painlevé differential equation (PV). Our aim is to find asymptotic, symmetric univalent solution of this class in a symmetric domain with respect to the real axis. As a result that the most important problem in the asymptotic expansion is the connections bound (coefficients bound), we introduce a study of this problem.

Cloud System Design using AMQP Protocol for Smart Devices System Applications

In this publication, we propose a cloud system design for internet-of-things (IoT) based smart devices system using AMQP protocol and RabbitMQ server. Using this proposed system, every connected device in smart devices system can be controlled remotely by mobile user, as long as internet connection is provided. Furthermore, if the internet connection between cloud and smart devices system is unstable or even off in a while, the cloud system is able to save the data to RabbitMQ server and send them when the internet connection stable again. In order to receive and store the data sent by user or smart devices system’s gateway, the cloud system utilizes exchange which is created in the server. If the data have reached the server, they will be stored and passed to exchange for next transmission. These data are bound with certain queue in order to organize the transmission schedule. By using such mechanism, the proposed system can overcome the internet connection problem without losing any data and provide a reliable cloud system.