Lightweight Photovoltaic Composite Structure on Stratospheric Airships

Regional Navigation System Using Geosynchronous Satellites and Stratospheric Airships

This paper proposes a methodology to design a regional navigation system using geosynchronous satellites and stratospheric airships. One important factor in designing a navigation system is dilution of precision. We design a regional navigation system based on the simulations of the system’s dilution of precision. The system would consist of geosynchronous orbit satellites and stratospheric air...

A composite CdS thin film/TiO2 nanotube structure by ultrafast successive electrochemical deposition toward photovoltaic application

Fabricating functional compounds on substrates with complicated morphology has been an important topic in material science and technology, which remains a challenging issue to simultaneously achieve a high growth rate for a complex nanostructure with simple controlling factors. Here, we present a novel simple and successive method based on chemical reactions in an open reaction system manipulat...

The Lightweight Composite Structure and Mechanical Properties of the Beetle Forewing

Magnetically Controlled Photovoltaic Diode Structure

We propose a new integrated device for spintronics application, which is based on a hybrid metal-semiconductor structure. The device consists of a Si-based p-i-n photodetector sandwiched between two layers of a ferromagnetic metal (3d ferromagnet or half-metallic compound). The photocurrent flowing in such a system is shown to depend on its magnetic configuration. This, in turn, allows controll...

Rule-based Lightweight Structure Design

This paper presents a rule-based computer aided design framework for assembling complex internal structure. It defines each voxel with its neighborhood as an intelligent agent, which make it possible to convert the structural assembly problem into an optimization problem of a multi-agent system. We use this method in the lightweight model design. Simple defeasible rules are used to build up the...