In this review, the authors study how a hybrid optomechanical system (OMS), in which quantum micro- or nano-mechanical oscillator is coupled to electromagnetic radiation pressure, consisting of an ensemble ultracold atoms atomic Bose–Einstein condensate, can be used as ultraprecision sensor for measuring very weak signals. As well-known any precise measurement, competition between shot noise an...

according to the international sale of goods convention, where the seller does not deliver the goods or the buyer does not pay the price or does not take delivery of the goods, each of them is entitled to grant the other an additional period for performing its obligations. if the obligor does not perform his obligation within the deadline, the other party achieves the right of termination of th...

In a wireless network, the problem of self-interference arises when a node transmits and receives simultaneously in the same frequency band. So far only two extreme approaches to circumvent this problem were thoroughly investigated in the literature. The first one prevents any node to transmit and receive simultaneously which may lead to a too conservative design. The second one assumes perfect...

Automatically identifying sections of solo voices or instruments within a large corpus of music recordings would be useful e.g. to construct a library of isolated instruments to train signal models. We consider several ways to identify these sections, including a baseline classifier trained on conventional speech features. Our best results, achieving frame level precision and recall of around 7...

There has been much speculation as to the origin of the ΔI=1/2 rule (ReA0/ReA2≃22.5). We find that the two dominant contributions to the ΔI=3/2, K→ππ correlation functions have opposite signs, leading to a significant cancelation. This partial cancelation occurs in our computation of ReA2 with physical quark masses and kinematics (where we reproduce the experimental value of A2) and also for he...

A successive interference cancelation (SIC) method is developed in this article to improve the performance of the downlink transmission throughput for the current high speed downlink packet access (HSDPA) system. The multicode code division multiplexing spreading sequences are orthogonal at the HSDPA downlink transmitter. However, the spreading sequences loose their orthogonality following tran...

This note extends results of Fernández, Leighton, and López-Presa on the uniqueness of r roots for disconnected graphs with respect to the Cartesian product to other products and shows that their methods also imply new cancelation laws.