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https://www.readbyqxmd.com/read/28439553/maximizing-the-performance-of-photothermal-actuators-by-combining-smart-materials-with-supplementary-advantages
#1
Tongyu Wang, David Torres, Félix E Fernández, Chuan Wang, Nelson Sepúlveda
The search for higher-performance photothermal microactuators has typically involved unavoidable trade-offs that hinder the demonstration of ubiquitous devices with high energy density, speed, flexibility, efficiency, sensitivity, and multifunctionality. Improving some of these parameters often implies deterioration of others. Photothermal actuators are driven by the conversion of absorbed optical energy into thermal energy, which, by different mechanisms, can produce mechanical displacement of a structure...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28437932/electrifying-catheters-with-light
#2
Martin Pekař, Jeannet van Rens, Martin B van der Mark
Smart minimally invasive devices face a connectivity challenge. An example is found in intracardiac echocardiography where the signal transmission and supply of power at the distal end require many thin and fragile wires in order to keep the catheter slim and flexible. We have built a fully functional bench-top prototype to demonstrate that electrical wires may be replaced by optical fibers. The prototype is immediately scalable to catheter dimensions. The absence of conductors will provide intrinsic galvanic isolation as well as radio frequency (RF) and magnetic resonance imaging (MRI) compatibility...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28430147/suitability-of-strain-gage-sensors-for-integration-into-smart-sport-equipment-a-golf-club-example
#3
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/28429003/electrochemical-plasmonic-metamaterials-towards-fast-electro-tuneable-reflecting-nanoshutters
#4
Debabrata Sikdar, Alwin Bucher, Cristian Zagar, Alexei A Kornyshev
Self-assembling arrays of metallic nanoparticles at liquid|liquid or liquid|solid interfaces could deliver new platforms for tuneable optical systems. Such systems can switch between very-high and very-low reflectance states upon assembly and disassembly of nanoparticles at the interface, respectively. This encourages creation of electro-variably reversible mirror/window nanoplasmonic devices. However, the response time of these systems is usually limited by the rate-of-diffusion of the nanoparticles in the liquid, towards the interface and back...
April 21, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28421749/design-of-multi-functional-nanogate-in-response-to-multiple-external-stimuli-using-amphiphilic-diblock-copolymer
#5
Kai Huang, Igal Szleifer
Nature uses the interplay between hydrophobic and electrostatic interactions of disordered proteins to orchestrate complicated molecular gate such as the nuclear pore complex to control the transport of biological masses. Inspired by nature, we here theoretically show that well-defined gate shape, sensitive response to pH and salt concentration, and selectivity in cargo transport can be simultaneously achieved by grafting amphiphilic diblock copolymers made of sequence-controlled hydrophobic and ionizable monomers on the inner surface of solid-state nanopore...
April 19, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28420222/how-sensors-might-help-define-the-external-exposome
#6
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
#7
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
#8
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/28420132/a-smart-voltage-and-current-monitoring-system-for-three-phase-inverters-using-an-android-smartphone-application
#9
Mohannad Jabbar Mnati, Alex Van den Bossche, Raad Farhood Chisab
In this paper, a new smart voltage and current monitoring system (SVCMS) technique is proposed. It monitors a three phase electrical system using an Arduino platform as a microcontroller to read the voltage and current from sensors and then wirelessly send the measured data to monitor the results using a new Android application. The integrated SVCMS design uses an Arduino Nano V3.0 as the microcontroller to measure the results from three voltage and three current sensors and then send this data, after calculation, to the Android smartphone device of an end user using Bluetooth HC-05...
April 15, 2017: Sensors
https://www.readbyqxmd.com/read/28416957/the-need-for-a-well-organized-video-assisted-asthma-education-program-at-korean-primary-care-clinics
#10
Yee Hyung Kim, Kwang Ha Yoo, Jee-Hong Yoo, Tae-Eun Kim, Deog Kyeom Kim, Yong Bum Park, Chin Kook Rhee, Tae-Hyung Kim, Young Sam Kim, Hyoung Kyu Yoon, Soo-Jung Um, I-Nae Park, Yon Ju Ryu, Jae-Woo Jung, Yong Il Hwang, Heung Bum Lee, Sung-Chul Lim, Sung Soo Jung, Eun-Kyung Kim, Woo Jin Kim, Sung-Soon Lee, Jaechun Lee, Ki Uk Kim, Hyun Kuk Kim, Sang Ha Kim, Joo Hun Park, Kyeong Cheol Shin, Kang Hyeon Choe, Ho-Kee Yum
BACKGROUND: The purpose of this study was to assess the effect of our new video-assisted asthma education program on patients' knowledge regarding asthma and asthma control. METHODS: Adult asthmatics who were diagnosed by primary care physicians and followed for at least 1 year were educated via smart devices and pamphlets. The education sessions were carried out three times at 2-week intervals. Each education period lasted at most 5 minutes. The effectiveness was then evaluated using questionnaires and an asthma control test (ACT)...
April 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28416663/bistable-metamaterial-for-switching-and-cascading-elastic-vibrations
#11
Osama R Bilal, André Foehr, Chiara Daraio
The realization of acoustic devices analogous to electronic systems, like diodes, transistors, and logic elements, suggests the potential use of elastic vibrations (i.e., phonons) in information processing, for example, in advanced computational systems, smart actuators, and programmable materials. Previous experimental realizations of acoustic diodes and mechanical switches have used nonlinearities to break transmission symmetry. However, existing solutions require operation at different frequencies or involve signal conversion in the electronic or optical domains...
April 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28415066/effect-of-barbell-weight-on-the-structure-of-the-flat-bench-press
#12
Henryk Król, Artur Gołaś
Król, H and Gołaś, A. Effect of barbell weight on the structure of the flat bench press. J Strength Cond Res 31(5): 1321-1337, 2017-In this study, we have used the multimodular measuring system SMART. The system consisted of 6 infrared cameras and a wireless module to measure muscle bioelectric activity. In addition, the path of the barbell was measured with a special device called the pantograph. Our study concerns the change in the structure of the flat bench press when the weight of the barbell is increased...
May 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28414721/a-novel-smart-navigation-system-for-intramedullary-nailing-in-orthopedic-surgery
#13
Jaesuk Choi, Jihun Kim, Jae Youn Hwang, Minkyu Je, Jun-Young Kim, Shin-Yoon Kim
This paper proposes a novel smart surgical navigation system for intramedullary nailing in orthopedic surgery. Using a handle-integrated laser guidance module, the system can target a drill insertion point onto skin, indicating an accurate target position to perpendicularly access an invisible distal hole. The proposed handle-integration-based fixation of the laser guidance module precisely defines the relative position of the module with respect to the distal hole. Consequently, unlike conventional systems, the proposed system can indicate the target insertion point without any help from bulky and costly external position-tracking equipment that is usually required for compensating disturbances generated by external impacts...
2017: PloS One
https://www.readbyqxmd.com/read/28414208/highly-compressible-nitrogen-doped-carbon-foam-electrode-with-excellent-rate-capability-via-a-smart-etching-and-catalytic-process
#14
Kang Xiao, Yanhua Zeng, Jin Long, Hongbin Chen, Liangxin Ding, Suqing Wang, Haihui Wang
Freestanding three-dimensional (3D) nitrogen-doped carbon foam (NCF) with large pore architectures is proposed as a promising electrode configuration for elastic electronics. However, although it exhibits excellent mechanical performance, the available capacitive performances (especially its rate capability) are still unsatisfactory. By using KMnO4, we demonstrate a smart etching and catalytic process to form highly graphitized and etched nitrogen-doped carbon foam (denoted as ENCF) with an exfoliated carbon shell architecture...
April 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28405896/integrating-personalized-technology-in-toxicology-sensors-smart-glass-and-social-media-applications-in-toxicology-research
#15
Stephanie Carreiro, Peter R Chai, Jennifer Carey, Brittany Chapman, Edward W Boyer
Rapid proliferation of mobile technologies in social and healthcare spaces create an opportunity for advancement in research and clinical practice. The application of mobile, personalized technology in healthcare, referred to as mHealth, has not yet become routine in toxicology. However, key features of our practice environment, such as frequent need for remote evaluation, unreliable historical data from patients, and sensitive subject matter, make mHealth tools appealing solutions in comparison to traditional methods that collect retrospective or indirect data...
April 12, 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28403710/nice-guidance
#16
(no author information available yet)
Healthcare professionals can now access guidance from the National Institute for Health and Care Excellence (NICE) from smart devices.
April 13, 2017: Emergency Nurse: the Journal of the RCN Accident and Emergency Nursing Association
https://www.readbyqxmd.com/read/28400984/is-technology-present-in-frailty-technology-a-back-up-tool-for-dealing-with-frailty-in-the-elderly-a-systematic-review
#17
REVIEW
Iranzu Mugueta-Aguinaga, Begonya Garcia-Zapirain
This study analyzes the technologies used in dealing with frailty within the following areas: prevention, care, diagnosis and treatment. The aim of this paper is, on the one hand, to analyze the extent to which technology is present in terms of its relationship with frailty and what technological resources are used to treat it. Its other purpose is to define new challenges and contributions made by physiotherapy using technology. Eighty documents related to research, validation and/or the ascertaining of different types of hardware, software or both were reviewed in prominent areas...
April 2017: Aging and Disease
https://www.readbyqxmd.com/read/28398902/smart-life-support-reloaded-design-and-control-of-complex-therapeutic-devices
#18
EDITORIAL
Steffen Leonhardt
No abstract text is available yet for this article.
April 1, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28398266/design-and-implementation-of-an-intelligent-windowsill-system-using-smart-handheld-device-and-fuzzy-microcontroller
#19
Jing-Min Wang, Ming-Ta Yang, Po-Lin Chen
With the advance of science and technology, people have a desire for convenient and comfortable living. Creating comfortable and healthy indoor environments is a major consideration for designing smart homes. As handheld devices become increasingly powerful and ubiquitous, this paper proposes an innovative use of smart handheld devices (SHD), using MIT App Inventor and fuzzy control, to perform the real-time monitoring and smart control of the designed intelligent windowsill system (IWS) in a smart home. A compact weather station that consists of environment sensors was constructed in the IWS for measuring of indoor illuminance, temperature-humidity, carbon dioxide (CO₂) concentration and outdoor rain and wind direction...
April 11, 2017: Sensors
https://www.readbyqxmd.com/read/28397305/trap-healing-for-high-performance-low-voltage-polymer-transistors-and-solution-based-analog-amplifiers-on-foil
#20
Vincenzo Pecunia, Mark Nikolka, Antony Sou, Iyad Nasrallah, Atefeh Y Amin, Iain McCulloch, Henning Sirringhaus
Solution-processed semiconductors such as conjugated polymers have great potential in large-area electronics. While extremely appealing due to their low-temperature and high-throughput deposition methods, their integration in high-performance circuits has been difficult. An important remaining challenge is the achievement of low-voltage circuit operation. The present study focuses on state-of-the-art polymer thin-film transistors based on poly(indacenodithiophene-benzothiadiazole) and shows that the general paradigm for low-voltage operation via an enhanced gate-to-channel capacitive coupling is unable to deliver high-performance device behavior...
April 11, 2017: Advanced Materials
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