Explicitly using the block structure of the unknown signal can achieve better recovery performance in compressive censing. An unknown signal with block structure can be accurately recovered from underdetermined linear measurements provided that it is sufficiently block sparse. However, in practice, the block sparsity level is typically unknown. In this paper, we consider a soft measure of block...

This letter proposes a novel distributed compressed estimation scheme for sparse signals and systems based on compressive sensing techniques. The proposed scheme consists of compression and decompression modules inspired by compressive sensing to perform distributed compressed estimation. A design procedure is also presented and an algorithm is developed to optimize measurement matrices, which ...

conclusions switching ams off may increase biventricular pacing in some patients. case presentation in this case series, we present a combination of far field sensing and automatic mode switching (ams) in six patients. it is found that this combination causes ventricular sensing (vs) episodes with wide qrs and no synchronization. we turn off the ams and alleviate the problem. introduction cardi...

Compressive sensing (CS) based multi-input multi-output (MIMO) radar systems that explore the sparsity of targets in the target space enable either the same localization performance as traditional methods but with significantly fewer measurements, or significantly improved performance with the same number of measurements. However, the enabling assumption, i.e., the target sparsity, diminishes i...

Large populations of bacteria communicate by sending into the environment some specific signalling molecules. A bacterium will sense the population density by the concentration of the signalling molecule. This process, known as “quorum sensing”, is used in this paper to show the emergent behaviour of a bacterium colony in various circumstances. The biochemistry associated with quorum sensing ha...

Citation: Krupke A, Hmelo LR, Ossolinski JE, Mincer TJ and Van Mooy BAS (2016) Quorum Sensing Plays a Complex Role in Regulating the Enzyme Hydrolysis Activity of Microbes Associated with Sinking Particles in the Ocean. Front. Mar. Sci. 3:55. doi: 10.3389/fmars.2016.00055 Quorum Sensing Plays a Complex Role in Regulating the Enzyme Hydrolysis Activity of Microbes Associated with Sinking Particl...

Bacteria communicate through small diffusible molecules in a process known as quorum sensing. Quorum-sensing inhibitors are compounds which interfere with this, providing a potential treatment for infections associated with bacterial biofilms. We present an individual-based computational model for a developing biofilm. Cells are aggregated into particles for computational efficiency, but the qu...

The compressive sensing (CS) paradigm uses simultaneous sensing and compression to provide an efficient image acquisition technique. The main advantages of the CS method include high resolution imaging using low resolution sensor arrays and faster image acquisition. Since the imaging philosophy in CS imagers is different from conventional imaging systems, new physical structures have been devel...

In this paper we present an image contour extraction strategy based on bacterial Quorum Sensing (QS). By imitating bacterial behavior, we get the bacteria or agents to navigate the image and accumulate in the areas of attraction, which correspond to special features of color. When the bacterial population begins to cluster in one or several areas of the image, the population virulence is activa...

Microorganisms are ubiquitous in their presence on the planet but the communication network they use to adapt, grow and survive is still under the exploration among the biologist world. The prokaryotic and eukaryotic microorganisms grow as single species or in consortium under diverse ecosystems synthesize and release macromolecules known as extracellular polymeric substances (EPS). These 80% e...