keyword
MENU ▼
Read by QxMD icon Read
search

Mobile device*

keyword
https://www.readbyqxmd.com/read/28430147/suitability-of-strain-gage-sensors-for-integration-into-smart-sport-equipment-a-golf-club-example
#1
Anton Umek, Yuan Zhang, Sašo Tomažič, Anton Kos
Wearable devices and smart sport equipment are being increasingly used in amateur and professional sports. Smart sport equipment employs various sensors for detecting its state and actions. The correct choice of the most appropriate sensor(s) is of paramount importance for efficient and successful operation of sport equipment. When integrated into the sport equipment, ideal sensors are unobstructive, and do not change the functionality of the equipment. The article focuses on experiments for identification and selection of sensors that are suitable for the integration into a golf club with the final goal of their use in real time biofeedback applications...
April 21, 2017: Sensors
https://www.readbyqxmd.com/read/28429745/high-temperature-terahertz-detectors-realized-by-a-gan-high-electron-mobility-transistor
#2
H W Hou, Z Liu, J H Teng, T Palacios, S J Chua
In this work, a high temperature THz detector based on a GaN high electron mobility transistor (HEMT) with nano antenna structures was fabricated and demonstrated to be able to work up to 200( )°C. The THz responsivity and noise equivalent power (NEP) of the device were characterized at 0.14 THz radiation over a wide temperature range from room temperature to 200 °C. A high responsivity Rv of 15.5 and 2.7 kV/W and a low NEP of 0.58 and 10 pW/Hz(0.5) were obtained at room temperature and 200 °C, respectively...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429591/a-high-performance-furan-containing-conjugated-polymer-for-environmentally-benign-solution-processing
#3
Sang Myeon Lee, Hae Rang Lee, A-Reum Han, Junghoon Lee, Joon Hak Oh, Changduk Yang
Developing semiconducting polymers that exhibit both strong charge transport capability via highly ordered structures and good processability in environmentally benign solvents remains a challenge. Given that furan-based materials have better solubility in various solvents than analogous thiophene-based materials, we have synthesized and characterized furanyl-diketopyrrolopyrrole polymer (PFDPPTT-Si) together with its thienyl-diketopyrrolopyrrole-based analogue (PTDPPTT-Si) to understand subtle changes induced by the use of furan instead of thiophene units...
April 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28428170/who-uses-mobile-phone-health-apps-and-does-use-matter-a-secondary-data-analytics-approach
#4
Jennifer K Carroll, Anne Moorhead, Raymond Bond, William G LeBlanc, Robert J Petrella, Kevin Fiscella
BACKGROUND: Mobile phone use and the adoption of healthy lifestyle software apps ("health apps") are rapidly proliferating. There is limited information on the users of health apps in terms of their social demographic and health characteristics, intentions to change, and actual health behaviors. OBJECTIVE: The objectives of our study were to (1) to describe the sociodemographic characteristics associated with health app use in a recent US nationally representative sample; (2) to assess the attitudinal and behavioral predictors of the use of health apps for health promotion; and (3) to examine the association between the use of health-related apps and meeting the recommended guidelines for fruit and vegetable intake and physical activity...
April 19, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28428161/toward-game-based-digital-mental-health-interventions-player-habits-and-preferences
#5
Regan Lee Mandryk, Max Valentin Birk
BACKGROUND: Designers of digital interventions for mental health often leverage interactions from games because the intrinsic motivation that results from game-based interventions may increase participation and translate into improved treatment efficacy. However, there are outstanding questions about the suitability (eg, are desktop or mobile interventions more appropriate?) and intervention potential (eg, do people with depression activate enough to play?) of games for mental health...
April 20, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28426166/acute-effects-of-radiofrequency-electromagnetic-field-emitted-by-mobile-phone-on-brain-function
#6
REVIEW
Jun Zhang, Alexander Sumich, Grace Y Wang
Due to its attributes, characteristics, and technological resources, the mobile phone (MP) has become one of the most commonly used communication devices. Historically, ample evidence has ruled out the substantial short-term impact of radiofrequency electromagnetic field (RF-EMF) emitted by MP on human cognitive performance. However, more recent evidence suggests potential harmful effects associated with MP EMF exposure. The aim of this review is to readdress the question of whether the effect of MP EMF exposure on brain function should be reopened...
April 20, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28424489/porous-graphene-sponge-additives-for-lithium-ion-batteries-with-excellent-rate-capability
#7
Qian Cheng
Rate capability as well as power performance of lithium ion batteries (LiBs) is becoming more and more important, especially as the application targets of LiBs move from mobile devices to transportation, such as EVs and HEVs. In this research, we report porous graphene sponge additives for both anode and cathode materials for better rate performance. The charge capacity retention improved from 56% to 77% at 6C and from 7% to 45% at 10C with 0.5 wt% added to the anode, while the discharge capacity retention at the 6C rate improved from 43% to 76% and the 10C rate discharge improved from 16% to 40% with the same amount of MG added to the cathode...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28423815/mobile-medical-apps-and-mhealth-devices-a-framework-to-build-medical-apps-and-mhealth-devices-in-an-ethical-manner-to-promote-safer-use-a-literature-review
#8
Mary Sharp, Declan O'Sullivan
This paper presents a preliminary literature review in the area of ethics in the development of Mobile Medical Apps and mHealth. The review included both direct health apps and also apps marketed under the area of well-being in addition to mHealth devices. The following words and combinations of them were used to carry out the search for publications, mHealth, Apps, Ethics. The search engines used were Google Scholar, and PubMed. The paper is restricted to publications since 2012. The total number of papers found was 1,920 of which 84 were reviewed...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28422614/electronic-follow-up-of-developing-world-cleft-patients-a-digital-dream
#9
Tom W M Walker, Ambika Chadha, William Rodgers, Caroline Mills, Peter Ayliffe
OBJECTIVE: To identify potential access to telemedicine follow-up of children with clefts operated on a humanitarian mission. METHODS: A cross-sectional study of parents of children presenting to a humanitarian cleft lip and palate mission in a Provincial Hospital in the Philippines. A purpose designed questionnaire was used to assess access to electronic and digital resources that could be used to aid follow-up. Forty-five (N = 45) parents of children having primary cleft lip and or palate surgery participated...
April 19, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28422398/do-mhealth-interventions-prevent-excessive-gestational-weight-gain
#10
S J Herring
Mobile technologies are nearly ubiquitous worldwide (Pew Research Center, Technology Device Ownership: 2015). These digital platforms hold considerable promise for delivering weight control interventions due to their broach reach, immediate scalability, and low implementation costs (Bennett G et al. Annu Rev Public Health 2009;30:273-92). There is evidence for their efficacy in promoting weight loss among non-pregnant adults with obesity (Flores Mateo G et al. J Med Internet Res 2015;17(11):e253), yet few studies have examined the feasibility and efficacy of mobile technologies for preventing excessive weight gain in pregnant women at highest risk...
April 19, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28421308/an-intelligent-remote-monitoring-system-for-total-knee-arthroplasty-patients
#11
Yunus Msayib, Patrick Gaydecki, Michael Callaghan, Nicola Dale, Sheheera Ismail
For the first six weeks following total knee arthroplasty (TKA), a patient will attend an outpatient clinic typically seen twice weekly. Here, an exercise regime is performed and improvement assessed using a hand held goniometer that measures the maximum angle of knee flexion, an important metric of progress. Additionally a series of daily exercises is performed at home, recorded in a diary. This protocol has problems. Patients must attend the hospital with assistance since they are not permitted to drive for six weeks following the procedure; appointments are sometimes missed; there are occasionally not enough physiotherapy appointment available; furthermore, it is difficult to be sure that patients are compliant with their exercises at home...
June 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28420605/scalable-passive-sleep-monitoring-using-mobile-phones-opportunities-and-obstacles
#12
Sohrab Saeb, Thaddeus R Cybulski, Konrad P Kording, David C Mohr
BACKGROUND: Sleep is a critical aspect of people's well-being and as such assessing sleep is an important indicator of a person's health. Traditional methods of sleep assessment are either time- and resource-intensive or suffer from self-reporting biases. Recently, researchers have started to use mobile phones to passively assess sleep in individuals' daily lives. However, this work remains in its early stages, having only examined relatively small and homogeneous populations in carefully controlled contexts...
April 18, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28420222/how-sensors-might-help-define-the-external-exposome
#13
REVIEW
Miranda Loh, Dimosthenis Sarigiannis, Alberto Gotti, Spyros Karakitsios, Anjoeka Pronk, Eelco Kuijpers, Isabella Annesi-Maesano, Nour Baiz, Joana Madureira, Eduardo Oliveira Fernandes, Michael Jerrett, John W Cherrie
The advent of the exposome concept, the advancement of mobile technology, sensors, and the "internet of things" bring exciting opportunities to exposure science. Smartphone apps, wireless devices, the downsizing of monitoring technologies, along with lower costs for such equipment makes it possible for various aspects of exposure to be measured more easily and frequently. We discuss possibilities and lay out several criteria for using smart technologies for external exposome studies. Smart technologies are evolving quickly, and while they provide great promise for advancing exposure science, many are still in developmental stages and their use in epidemiology and risk studies must be carefully considered...
April 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28420218/a-latency-and-coverage-optimized-data-collection-scheme-for-smart-cities-based-on-vehicular-ad-hoc-networks
#14
Yixuan Xu, Xi Chen, Anfeng Liu, Chunhua Hu
Using mobile vehicles as "data mules" to collect data generated by a huge number of sensing devices that are widely spread across smart city is considered to be an economical and effective way of obtaining data about smart cities. However, currently most research focuses on the feasibility of the proposed methods instead of their final performance. In this paper, a latency and coverage optimized data collection (LCODC) scheme is proposed to collect data on smart cities through opportunistic routing. Compared with other schemes, the efficiency of data collection is improved since the data flow in LCODC scheme consists of not only vehicle to device transmission (V2D), but also vehicle to vehicle transmission (V2V)...
April 18, 2017: Sensors
https://www.readbyqxmd.com/read/28420158/intelligent-medical-garments-with-graphene-functionalized-smart-cloth-ecg-sensors
#15
Murat Kaya Yapici, Tamador Elboshra Alkhidir
Biopotential signals are recorded mostly by using sticky, pre-gelled electrodes, which are not ideal for wearable, point-of-care monitoring where the usability of the personalized medical device depends critically on the level of comfort and wearability of the electrodes. We report a fully-wearable medical garment for mobile monitoring of cardiac biopotentials from the wrists or the neck with minimum restriction to regular clothing habits. The wearable prototype is based on elastic bands with graphene functionalized, textile electrodes and battery-powered, low-cost electronics for signal acquisition and wireless transmission...
April 16, 2017: Sensors
https://www.readbyqxmd.com/read/28418666/helical-nanoribbons-for-ultra-narrowband-photodetectors
#16
Yu Zhong, Thomas J Sisto, Boyuan Zhang, Kiyoshi Miyata, X-Y Zhu, Michael L Steigerwald, Fay Ng, Colin Nuckolls
This Communication describes a new molecular design that yields ultranarrowband organic photodetectors. The design is based on a series of helically twisted molecular ribbons as the optoelectronic material. We fabricate charge collection narrowing photodetectors based on four different helical ribbons that differ in the wavelength of their response. The photodetectors made from these materials have narrow spectral response with full-width at half maxima of <20 nm. The devices reported here are superior by approximately a factor of 5 to those from traditional organic materials due to the narrowness of their response...
April 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28418620/fast-and-highly-sensitive-ionic-polymer-gated-ws2-graphene-photodetectors
#17
Jake D Mehew, Selim Unal, Elias Torres Alonso, Gareth F Jones, Saad Fadhil Ramadhan, Monica F Craciun, Saverio Russo
The combination of graphene with semiconductor materials in heterostructure photodetectors enables amplified detection of femtowatt light signals using micrometer-scale electronic devices. Presently, long-lived charge traps limit the speed of such detectors, and impractical strategies, e.g., the use of large gate-voltage pulses, have been employed to achieve bandwidths suitable for applications such as video-frame-rate imaging. Here, atomically thin graphene-WS2 heterostructure photodetectors encapsulated in an ionic polymer are reported, which are uniquely able to operate at bandwidths up to 1...
April 18, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28418063/ab-initio-modelling-of-oxygen-vacancy-arrangement-in-highly-defective-hfo2-resistive-layers
#18
Luca Sementa, Luca Larcher, Giovanni Barcaro, Monia Montorsi
We report ab initio results for sub-stoichiometric HfOx with different oxygen vacancy densities, useful in exploring microscopic mechanisms that govern the operation of RRAM devices. We demonstrate that oxygen vacancy filaments are energetically more stable than randomly distributed defects. Furthermore, the stability of the filaments increases with the number of confined oxygen vacancies. Energetic and structural analyses show that bonds between neighboring coordinative unsaturated Hf atoms promote filament stability, and electron trapping, due to electron injection, increases the cohesive energy until the injection is moderate...
April 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28418013/a-graphene-based-frequency-quadrupler
#19
Chuantong Cheng, Beiju Huang, Xurui Mao, Zanyun Zhang, Zan Zhang, Zhaoxin Geng, Ping Xue, Hongda Chen
Benefit from exceptional electrical transport properties, graphene receives worldwide attentions, especially in the domain of high frequency electronics. Due to absence of effective bandgap causing off-state the device, graphene material is extraordinarily suitable for analog circuits rather than digital applications. With this unique ambipolar behavior, graphene can be exploited and utilized to achieve high performance for frequency multipliers. Here, dual-gated graphene field-effect transistors have been firstly used to achieve frequency quadrupling...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28417927/wireless-fractal-ultra-dense-cellular-networks
#20
Yixue Hao, Min Chen, Long Hu, Jeungeun Song, Mojca Volk, Iztok Humar
With the ever-growing number of mobile devices, there is an explosive expansion in mobile data services. This represents a challenge for the traditional cellular network architecture to cope with the massive wireless traffic generated by mobile media applications. To meet this challenge, research is currently focused on the introduction of a small cell base station (BS) due to its low transmit power consumption and flexibility of deployment. However, due to a complex deployment environment and low transmit power of small cell BSs, the coverage boundary of small cell BSs will not have a traditional regular shape...
April 12, 2017: Sensors
keyword
keyword
82887
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"