We demonstrate a classical analogue of electromagnetically induced transparency (EIT) in highly flexible planar terahertz metamaterial (MM) comprised three-gap split ring resonators. The keys to achieve EIT this system are the frequency detuning and hybridization processes between two bright modes coexisting same unit cell as opposed bright-dark modes. present experimental verification two-bright mode coupling for EIT-MM context numerical results theoretical analysis based on coupled Lorentz...

We demonstrate experimentally and theoretically dielectric metamaterials exhibiting a tunable range of negative effective permeability in the terahertz spectral region (0.2--0.36 THz). Our structures consist an array intrinsically nonmagnetic rods made incipient ferroelectric ${\text{SrTiO}}_{3}$ which shows high permittivity. The magnetic response its tuning are achieved by temperature control permittivity ${\text{SrTiO}}_{3}$, defines resonant confinement electromagnetic field within rods.

In this article, a new medical communication scheme, protocol wireless sensor networks for the efficiency of healthcare (PWMSN4EoCH), shorten by (PEH), which uses hasty strategy and random network coding (RNC), is proposed. The concept improves performance network. It quickly analyzes description, focusing on some basic parameters narrowband Internet Things (NB-IoT) systems in mesh (WMNs). This PEH effectively meets requirements prescribed telemedicine applications sensors (MSs) share...

We present a design of dielectric metamaterials exhibiting broad range negative effective permeability in the terahertz spectral region. The investigated structures consist an array high-permittivity rods that exhibit series Mie resonances giving rise to magnetic response. positions depend on geometrical parameters and their permittivity, which define resonant confinement electromagnetic field within rods. coupling between adjacent is negligible. With suitable aspect ratio rods, broadband...

The analog to digital conversion is an elementary part of the modern electronic systems. Almost all existing ADCs (Analog Digital Converters) are based on uniform sampling theory. It makes signal acquisition time-invariant. Therefore, it can render a useless increase system activity, especially in case sporadic signals. Thus, adaptive rate ADC which cross-level devised. adapt its activity according input local variations. provides intelligent leads towards efficient solution. proposed...

In modern era the utilization of battery empowered systems is growing exponentially. goal to achieve an optimal system performance, employment a PMS (Power Management System) necessary. The recent sophistications in area PMSs are demanding more and processing resources. Reducing power consumption becoming one most difficult industrial challenges. Most efforts this focused on improving embedded design, but very few studies target exploit input signal time-varying nature. This work aims...

The design of a multisource metamaterial-based cavity antenna operating at about 9 GHz is presented. A 2×2 microstrip patch array acting as the embedded in an ultra-thin (λ/22) shows directivity enhancement 4.2 dB with regard to monosource fed (23.2 instead 19 dB). Moreover, sidelobes are considerably decreased cavity.

Since combustion is an easy way to achieve large quantities of energy from a small volume, we developed MEMS based solid propellant microthruster array for spacecraft and micro-air-vehicle applications. A thruster composed fuel chamber layer, top-side igniter with micromachined nozzle in the same silicon layer. Layers are assembled by adhesive bonding give final array. The thrust force generated stored few millimeter cube chamber. micro-igniter polysilicon resistor deposited on low stress...

Metamolecules deposited on thin dielectric film using standard optical lithography have been investigated numerically and experimentally in the terahertz regime.The topology of proposed metamolecules is able to achieve a multiple band frequency response over broad range.The analysis spectral metamaterial reveals that such feature arises from coupling effects between its individual constituents.The successful demonstration THz flexible may open up new perspectives towards achieving complex...

In modern era the utilization of battery empowered systems is growing exponentially. goal to achieve an optimal system performance, employment a BMS (Battery Management System) inevitable. The recent sophistications in area BMSs are demanding more and processing resources. Reducing power consumption becoming one most difficult industrial challenges. Most efforts this focused on improving embedded design, but very few studies target exploit input signal time-varying nature. This work aims...

The severity of falls increases with age and reduced mobility. Falls are a frequent source domestic accidents accidental death on the part fragile people. They produce anatomical injuries, reduce quality life, cause dramatic psychological effects, impose heavy financial burdens. A growing elderly population leads to direct increase in health service costs, indirectly deterioration social life long term. Unsurprisingly, socioeconomic costs have triggered new scientific research detect older...

Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation R. Yahiaoui, U.-C. Chung, C. Elissalde, M. Maglione, V. Vigneras, P. Mounaix; Towards left-handed metamaterials using single-size dielectric resonators: The case of TiO2-disks at millimeter wavelengths. Appl. Phys. Lett. 23 July 2012; 101 (4): 042909. https://doi.org/10.1063/1.4739498 Download citation file:...

In this study, a narrowband internet of things (NB-IoT) medical device (MD) was presented. We consider wireless communication system where the multi-hop sources shared downlink and uplink resources to probe control hospital patients' MDs.A multicast data packet distributed over MD networks, random linear network coding approach applied in source instead intermediate nodes. evaluated cycle between master station remote terminal units, which were connected with several critical devices room....

The sensitivity of the maximum useable data is most significant characteristic that describes quality Narrowband Internet Things (NB-IoT) Medical sensors (MS) receivers. It becomes important performance factor in mobile wireless communication networks, particularly body area networks (WBAN). Our interest level using modulation techniques and subcarrier spacing(SS) to achieve good Bit Error Rate (BER) performance, throughput, power efficiencies for WBAN Systems an advanced NB-IoT. We propose...

Interferometric optical profilometers are increasingly used for the characterization of static deformation micromechanical devices and Micro(Opto)Electromechanical Systems (M(O)EMS). Recent works have shown that they can also be full field dynamic measurements provided a stroboscopic light source is added or time averaging interferograms performed. In this work we investigate two methods to make quantitative time-averaged microscopic interferometric measurements. Both based on calibration...