You are probably deploying different types of small cells from multiple vendors, including residential small cells, indoor small cells for buildings, and public small cells in indoor hotspots. Most 3G small cells today are passive in operation they do some auto-configuration on start-up but can’t react to changes in traffic or in their radio environment. Others, such as Cisco Universal Small Ce...

Wireless sensors market is growing very fast these last years tanks to the availability of cheap, small and efficient micro-sensors, batteries, analog and RF circuits, and to the presence of standardized communication protocols. Even if these active sensors are very attractive for a lot of applications, they suffer from weak energy autonomy and they are not compatible with harsh environment. In...

We introduce a micro-biochemical administration module (BAM) for generating chemical gradients for use in axonal guidance studies. The device is designed to be simple to use, require minimal packaging, and be operated using only a pipette. A passive pumping mechanism is utilized to pump liquid through a SU-8 microchannel and then the micropore on the Parylene cap of the microchannel. The achie...

Populations of swimming micro-organisms produce fluid motions that lead to dramatically enhanced diffusion of tracer particles. Using simulations of suspensions of swimming particles in a periodic domain, we capture this effect and show that it depends qualitatively on the mode of swimming: swimmers "pushed" from behind by their flagella show greater enhancement than swimmers that are "pulled" ...

Piezoelectric elements are widely used for damping micro-vibrations in mechanical structures. Active damping can be realised robustly by means of collocated actuator-sensor-pairs, controlled so as to extract vibration energy. Excellent damping performance is possible as long as sufficient controllability is assured. Passive damping based on a single piezoelectric element can be realised by the ...

We present a detailed comparison, in a comprehensive framework, of Mobile IP and seven of the main IP Micromobility protocols. We first describe the global mobility landscape and point out the important issues that must be addressed. These are mainly Handoff management, Passive Connectivity and Paging support, Scalability and Robustness. Based on this framework, we examine in a first step Mobil...

This paper reports a novel cerebrospinal fluid (CSF) shunt system for the hydrocephalus patients. The CSF shunt system consists of a micro telemetry pressure sensor, an electromagnetic micropump and a controller. The pressure sensor has a flexible p+ diaphragm and a planar copper coil that construct an LC resonant circuit. The cerebrospinal pressure is measured from the phase shift at the reson...

We provide some general theoretical results to guide the optimization of transverse hydrodynamic phenomena in superhydrophobic channels. Our focus is on the canonical micro- and nanofluidic geometry of a parallel-plate channel with an arbitrary two-component (low-slip and high-slip) coarse texture, varying on scales larger than the channel thickness. By analyzing rigorous bounds on the permeabi...

Wireless sensors market is growing very fast these last years tanks to the availability of cheap, small and efficient micro-sensors, batteries, analog and RF circuits, and to the presence of standardized communication protocols. Even if these active sensors are very attractive for a lot of applications, they suffer from weak energy autonomy and they are not compatible with harsh environment. In...

An experimental study was conducted to assess the acoustic performance of a two-winged Flapping-Wing Micro-Air-Vehicle (FW-MAV) with various wing materials and wing structure configurations for flapping flight applications. It was concluded that highly elastic materials could significantly reduce the flapping wing noise in a wide spectrum of audible frequencies. Furthermore, a dielectric elasto...