Next-generation cellular networks deployment will require systems with broadband capabilities in high-mobility environments. Data rates up to 100 Mbits/s and above, high spectral efficiencies and stronger fading mitigation have to be achieved. Technologies needed to obtain these specifications, include multibeam antenna systems, wideband transceivers, and robust and efficient space-time coding....

With growing interest in the use of SRAM-based FPGAs in space and other radiation environments, there is a greater need for efficient and effective fault-tolerant design techniques specific to FPGAs. Triple-modular redundancy (TMR) is a common fault mitigation technique for FPGAs and has been successfully demonstrated by several organizations. This technique, however, requires significant hardw...

There is currently no FDA approved therapeutic agent for ARS mitigation post radiation exposure. Here we report that the small molecule YH250, which specifically antagonizes p300/catenin interaction, stimulates hematopoiesis in lethally or sublethally irradiated mice. A single administration of YH250 24 hours post irradiation can significantly stimulate HSC proliferation, improve survival and a...

In this paper, we examine the optical loss mechanisms and mitigation strategies in classical photovoltaic light trapping structures consisting of diffractive gratings integrated with a backside reflector, which couple normal incident solar radiation into guided modes in solar cells to enhance optical absorption. Parasitic absorption from metal or dielectric backside reflectors is identified to ...

Processors for space are required to be tolerant to the following radiation and environmental effects: TID (100300 kRad for GEO and beyond, 10-50 kRad for some LEO missions), Latch-up, SEU, SET, SEFI, and temperature cycles. Another reliability issue is the complete and permanent failure of a processor or a critical sub-component. None of the methods surveyed here mitigate such failures, and th...

When electronic systems are working in radiation environments, transient errors, and permanent errors may occur. Static random-access memory (SRAM) has been the one of most significant parts various semiconductor chips for its high performance logic density features. However, because their dedicated circuits, SRAMs sensitive to effects. In this article, a portable scheme combined with error cor...