Skin moisture assessment using Hydration Sensor Patches coupled with smartphones via Near Field Communication (NFC). A pilot study with the first generation of patches that allow self‐recordings of skin hydration

2021 ◽  
Author(s):  
Frederic Flament ◽  
Anthony Galliano ◽  
Aurelie Abric ◽  
Christoph‐Manuel Matoschitz ◽  
Manfred Bammer ◽  
...  
Keyword(s):  
Pilot Study ◽  
First Generation ◽  
Near Field ◽  
Skin Hydration ◽  
Near Field Communication ◽  
Skin Moisture

Near Field Communication Enabled Mobile Payments: Preliminary Study

2018 ◽  
Vol 7 (2.34) ◽  
pp. 60
Author(s):  
Imtiaz Ali Brohi ◽  
Najma Imtiaz Ali ◽  
Asadullah Shah ◽  
Madihah Bt. S. Abd. Aziz ◽  
Mohd. Izzuddin Bin Mohd. Tamrin
Keyword(s):  
Pilot Study ◽  
Ubiquitous Computing ◽  
Technology Acceptance ◽  
Near Field ◽  
Mobile Payment ◽  
Near Field Communication ◽  
Payment Model ◽  
Mobile Payments ◽  
Use Of Technology ◽  
Preliminary Study

The ubiquitous computing has made consumers life easy, it has given the new way to interact with family and friends and perform many activities which were impossible in previous time. One of the profound achievement of ubiquitous computing is Mobile Payment and an advanced mode of the mobile payment is the near field communication mobile payment. In this study the authors have proposed theoretical  near field communication mobile payment model that is based on extended unified technology acceptance and use of technology (UTAUT2) .In this paper, the author have performed the pilot study to validate the variables and to verify their reliability among the proposed items.  The results has proven that there is a reliability among the items in variables, as the Cronbach’s alpha value for the variables is above or equal to 0.7. 

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 Design of Multi Standard Near Field Communication Outphasing Transmitter with Modulation Wave Shaping

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 188
Author(s):  
Žiga Korošak ◽  
Nejc Suhadolnik ◽  
Anton Pleteršek
Keyword(s):  
Radio Frequency Identification ◽  
High Efficiency ◽  
Near Field ◽  
Cmos Technology ◽  
Near Field Communication ◽  
Differential Delay ◽  
Fully Differential ◽  
Delay Locked Loop ◽  
Modulation Wave ◽  
The Individual

The aim of this work is to tackle the problem of modulation wave shaping in the field of near field communication (NFC) radio frequency identification (RFID). For this purpose, a high-efficiency transmitter circuit was developed to comply with the strict requirements of the newest EMVCo and NFC Forum specifications for pulse shapes. The proposed circuit uses an outphasing modulator that is based on a digital-to-time converter (DTC). The DTC based outphasing modulator supports amplitude shift keying (ASK) modulation, operates at four times the 13.56 MHz carrier frequency and is made fully differential in order to remove the parasitic phase modulation components. The accompanying transmitter logic includes lookup tables with programmable modulation pulse wave shapes. The modulator solution uses a 64-cell tapped current controlled fully differential delay locked loop (DLL), which produces a 360° delay at 54.24 MHz, and a glitch-free multiplexor to select the individual taps. The outphased output from the modulator is mixed to create an RF pulse width modulated (PWM) output, which drives the antenna. Additionally, this implementation is fully compatible with D-class amplifiers enabling high efficiency. A test circuit of the proposed differential multi-standard reader’s transmitter was simulated in 40 nm CMOS technology. Stricter pulse shape requirements were easily satisfied, while achieving an output linearity of 0.2 bits and maximum power consumption under 7.5 mW.

scholarly journals Monitoring Transepidermal Water Loss and Skin Wettedness Factor with Battery-Free NFC Sensor

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5549
Author(s):  
Syed Muhammad Ali ◽  
Wan-Young Chung
Keyword(s):  
Water Loss ◽  
Near Field ◽  
Experimental Tests ◽  
Transepidermal Water Loss ◽  
Comfort Level ◽  
Skin Wettedness ◽  
Moisture Content Level ◽  
Indoor And Outdoor Environments ◽  
Skin Moisture

The transepidermal water loss (TEWL) and the skin wettedness factor (SWF) are considered parts of a key perspective related to skincare. The former is used to determine the loss of water content from the stratum corneum (SC), while the latter is used to determine the human skin comfort level. Herein, we developed two novel approaches: (1) determination of the TEWL and the SWF based on a battery-free humidity sensor, and (2) the design of a battery-free smart skincare sensor device tag that can harvest energy from a near field communication (NFC)-enabled smartphone, making it a battery-free design approach. The designed skincare device tag has a diameter of 2.6 cm and could harvest energy (~3 V) from the NFC-enabled smartphone. A series of experimental tests involving the participation of eight and six subjects were conducted in vivo for the indoor and outdoor environments, respectively. During the experimental analysis, the skin moisture content level was measured at different times of the day using an android smartphone. The TEWL and SWF values were calculated based on these sensor readings. For the TEWL case: if the skin moisture is high, the TEWL is high, and if the skin moisture is low, the TEWL is low, ensuring that the skin moisture and the TEWL follow the same trend. Our smart skincare device is enclosed in a 3D flexible design print, and it is battery-free with an android application interface that is more convenient to carry outside than other commercially available battery-based devices.

scholarly journals Near-Field Communication in Biomedical Applications

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 703
Author(s):  
Sung-Gu Kang ◽  
Min-Su Song ◽  
Joon-Woo Kim ◽  
Jung Woo Lee ◽  
Jeonghyun Kim
Keyword(s):  
Blood Flow ◽  
Communication Technology ◽  
Biomedical Applications ◽  
Daily Life ◽  
Near Field ◽  
Near Field Communication ◽  
Disease Monitoring ◽  
Payment Methods ◽  
New Sensors ◽  
Biomedical Fields

Near-field communication (NFC) is a low-power wireless communication technology used in contemporary daily life. This technology contributes not only to user identification and payment methods, but also to various biomedical fields such as healthcare and disease monitoring. This paper focuses on biomedical applications among the diverse applications of NFC. It addresses the benefits of combining traditional and new sensors (temperature, pressure, electrophysiology, blood flow, sweat, etc.) with NFC technology. Specifically, this report describes how NFC technology, which is simply applied in everyday life, can be combined with sensors to present vision and opportunities to modern people.

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