We demonstrate a greater than 42 dB optical distribution network power budget in the upstream of a 1.25 Gbps self-coherent reflective PON after 100 km of installed fibers, using off-the-shelf optoelectronic components, improving our previous result by 4 dB. We discuss all system optimizations introduced in the setup in order to reach such a result, including 8B/10B high-pass filtering and Farad...

One-shot Neural Architecture Search (NAS) has been widely used to discover architectures due its efficiency. However, previous studies reveal that one-shot performance estimations of might not be well correlated with their performances in stand-alone training because the excessive sharing operation parameters (i.e., large extent) between architectures. Thus, recent methods construct even more o...

The present work shows a quantitative trade-off analysis of the Simbol-X Mirror Spacecraft (MSC) passive shielding, in the phase space of the various parameters: mass budget, dimension, geometry and composition. A simplified physical (and geometrical) model of the sky screen, implemented by means of a GEANT4 simulation, has been developed to perform a performance-driven mass optimization and ev...

Earthquakes have catastrophic effects on the affected population, especially in undeveloped countries or regions. Minimizing impact and consequences of earthquakes involves many decisions disaster relief operations that should be optimized. A critical management problem is to construct shelters with reasonable capacity right locations, allocate evacuees, provide materials them within a period. ...

We address the combined scheduling problem of maximizing the total reward of fixed-priority hard real-time systems with a given energy budget. We present a fully polynomial time approximation scheme (FPTAS) for the off-line job-level scheduling problem and an efficient heuristic for the task-level scheduling problem. We also describe an online algorithm which is effective in leveraging the exec...

The budget outline the White House unveiled on 28 February caps a week of startling news for NASA. On orders from the White House, NASA managers last week told Congress they intend to cancel plans for a Pluto flyby and a mission to study the solar wind. The agency is also following orders to make major cuts to the international space station after acknowledging huge cost overruns in the orbitin...

In this paper I develop a Proxy Means Tests (PMT) model and examine several targeting lines based on 2008 household survey data to identify beneficiaries for a targeting subsidy scheme in Iran. Based on the findings of this study, setting a cut-off percentile of 40% is expected to provide compensation for almost 70 percent of the poorest households. This will result in the highest accuracy main...