Mechanics Design of Stretchable Near Field Communication Antenna With Serpentine Wires

2018 ◽  
Vol 85 (4) ◽  
Author(s):  
Zhaoqian Xie ◽  
Bowen Ji ◽  
Qingze Huo
Keyword(s):  
Layer Thickness ◽  
Near Field ◽  
Design Strategy ◽  
Electronics Manufacturing ◽  
Near Field Communication ◽  
Recent Advances ◽  
Composite Substrate ◽  
Monitoring Technologies

Recent advances in materials, mechanics, and electronics manufacturing are establishing the foundations for health/wellness monitoring technologies that have “skin-like” properties, with options in long-term integration with the epidermis. However, most examples of such emerging classes of devices require batteries and/or hard-wired connections to enable operation. The note reported here introduces a foundational mechanics design strategy of stretchable near field communication (NFC) antenna with serpentine microstructures to achieve wireless, battery-free transmission of power and/or data, where the planar layout, polyimide (PI) layer thickness of the serpentine wire, and composite substrate are designed to achieve larger elastic stretchability.

Autonomous near-field communication (NFC) sensors for long-term preventive care of fine art objects

2019 ◽  
Vol 285 ◽  
pp. 456-467 ◽  
Author(s):  
Matthew D. Steinberg ◽  
Christine Slottved Kimbriel ◽  
Lieve S. d'Hont
Keyword(s):  
Preventive Care ◽  
Near Field ◽  
Fine Art ◽  
Near Field Communication ◽  
Art Objects

Implementing New Automated Ticketing Technology at Virginia Railway Express

2012 ◽  
Author(s):  
Chris Henry ◽  
Steven Grant
Keyword(s):  
Near Field ◽  
Near Field Communication ◽  
Federal Employees ◽  
Major Focus ◽  
Identity Verification ◽  
Electronic Payments ◽  
Future System ◽  
Near Future ◽  
Fare Evasion

Virginia Railway Express (VRE) is at a crossroads at a key time with its current technology. In the near future, VRE will be required to replace its existing Automated Fare Collection (AFC) system. While this may not initially sound so different from what all rail agencies must eventually go through, ensuring that the system can be integrated into its neighboring Washington Metropolitan Area Transit Authority’s (WMATA) impending New Electronic Payments Program (NEPP) is a completely different story, and for many reasons. VRE is a key regional partner of WMATA and, as such, the two work hand-in-hand to ensure the interoperability between the two systems is maximized for the passengers who ride both services. Key to this is NEPP as an eventual replacement of WMATA’s SmarTrip® program. Since the majority of VRE’s ridership is Federal employees who carry PIV (Personal Identity Verification)/CAC (Common Access Card) cards and are making their way into the nation’s capital from Virginia and Maryland, the SmarTrip® program has been a major focus for VRE. While the NEPP program has several years before it goes live, it presents VRE with a valuable opportunity to review its current AFC system and use the interim to implement various concepts of operations for a future system. As such, VRE has become a willing partner for WMATA as a host for technology proof-of-concepts that will aid both VRE and WMATA in the long term. VRE is looking into hosting various technology options to pilot at key stations that may include mobile ticketing, Near Field Communication (NFC), or PIV/CAC cards as forms of payment, as well as proof of payment. As an open-gated system, VRE must tackle the problem of fare evasion, so looking to maximize its proof-of-payment capabilities with the latest technology is key. VRE would like to share with the rail community its thoughts and ideas for proof-of-concepts to utilize the latest payment technologies, as well as discuss its plans on interoperability with WMATA to assist agencies with similar challenges.

The Spread of Pollutants from Harbour Sludge Depots

1984 ◽  
Vol 16 (3-4) ◽  
pp. 623-633
Author(s):  
M Loxham ◽  
F Weststrate
Keyword(s):  
Time Scales ◽  
Molecular Diffusion ◽  
Near Field ◽  
Parameter Analysis ◽  
Migration Patterns ◽  
Long Time ◽  
Dilution Effects ◽  
Short Time ◽  
Harbour Sludge

It is generally agreed that both the landfill option, or the civil techniques option for the final disposal of contaminated harbour sludge involves the isolation of the sludge from the environment. For short time scales, engineered barriers such as a bentonite screen, plastic sheets, pumping strategies etc. can be used. However for long time scales the effectiveness of such measures cannot be counted upon. It is thus necessary to be able to predict the long term environmenttal spread of contaminants from a mature landfill. A model is presented that considers diffusion and adsorption in the landfill site and convection and adsorption in the underlaying aquifer. From a parameter analysis starting form practical values it is shown that the adsorption behaviour and the molecular diffusion coefficient of the sludge, are the key parameters involved in the near field. The dilution effects of the far field migration patterns are also illustrated.

RFID, NFC, Beacons, and the Infrastructures of Logistical Locative Media

2020 ◽  
pp. 474-486
Author(s):  
Jordan Frith
Keyword(s):  
Internet Of Things ◽  
Radio Frequency Identification ◽  
Near Field ◽  
Low Energy ◽  
Near Field Communication ◽  
Rfid Tags ◽  
Bluetooth Low Energy ◽  
Locative Media ◽  
Frequency Identification ◽  
Machine Readable

The phrase the Internet of things was originally coined in a 1999 presentation about attaching radio frequency identification (RFID) tags to individual objects. These tags would make the objects machine-readable, uniquely identifiable, and, most importantly, wirelessly communicative with infrastructure. This chapter evaluates RFID as a piece of mobile communicative infrastructure, and it examines two emerging forms: near-field communication (NFC) and Bluetooth low-energy beacons. The chapter shows how NFC and Bluetooth low-energy beacons may soon move some types of RFID to smartphones, in this way evolving the use of RFID in payment and transportation and enabling new practices of post-purchasing behaviors.

scholarly journals Novel System for Bite-Force Sensing and Monitoring Based on Magnetic Near Field Communication

Sensors ◽  
2012 ◽  
Vol 12 (9) ◽  
pp. 11544-11558 ◽  
Author(s):  
Andres Diaz Lantada ◽  
Carlos González Bris ◽  
Pilar Lafont Morgado ◽  
Jesús Sanz Maudes
Keyword(s):  
Near Field ◽  
Bite Force ◽  
Force Sensing ◽  
Near Field Communication

scholarly journals Applications, challenges, and needs for employing synthetic biology beyond the lab

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sierra M. Brooks ◽  
Hal S. Alper
Keyword(s):  
Synthetic Biology ◽  
Great Promise ◽  
Long Term Storage ◽  
Autonomous Function ◽  
Recent Advances ◽  
Resource Limited ◽  
Major Application ◽  
Further Development ◽  
Probiotic Delivery

AbstractSynthetic biology holds great promise for addressing global needs. However, most current developments are not immediately translatable to ‘outside-the-lab’ scenarios that differ from controlled laboratory settings. Challenges include enabling long-term storage stability as well as operating in resource-limited and off-the-grid scenarios using autonomous function. Here we analyze recent advances in developing synthetic biological platforms for outside-the-lab scenarios with a focus on three major application spaces: bioproduction, biosensing, and closed-loop therapeutic and probiotic delivery. Across the Perspective, we highlight recent advances, areas for further development, possibilities for future applications, and the needs for innovation at the interface of other disciplines.

Sign in / Sign up

Export Citation Format

Share Document