keyword
MENU ▼
Read by QxMD icon Read
search

Wireless

keyword
https://www.readbyqxmd.com/read/28339776/effect-of-acute-millimeter-wave-exposure-on-dopamine-metabolism-of-ngf-treated-pc12-cells
#1
Alexis J Haas, Yann Le Page, Maxim Zhadobov, Ronan Sauleau, Yves Le Dréan, Christian Saligaut
Several forthcoming wireless telecommunication systems will use electromagnetic frequencies at millimeter waves (MMWs), and technologies developed around the 60-GHz band will soon know a widespread distribution. Free nerve endings within the skin have been suggested to be the targets of MMW therapy which has been used in the former Soviet Union. So far, no studies have assessed the impact of MMW exposure on neuronal metabolism. Here, we investigated the effects of a 24-h MMW exposure at 60.4 GHz, with an incident power density (IPD) of 5 mW/cm², on the dopaminergic turnover of NGF-treated PC12 cells...
February 24, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28338865/assessment-of-public-exposure-form-wlans-in-the-west-bank-palestine
#2
Adnan Lahham, Afifeh Sharabati, Hussein ALMasri
A total of 271 measurements were conducted at 69 different sites including homes, hospitals, educational institutions and other public places to assess the exposure to radiofrequency emission from wireless local area networks (WLANs). Measurements were conducted at different distances from 40 to 10 m from the access points (APs) in real life conditions using Narda SRM-3000 selective radiation meter. Three measurements modes were considered at 1 m distance from the AP which are transmit mode, idle mode, and from the client card (laptop computer)...
March 3, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28338632/a-polynomial-subset-based-efficient-multi-party-key-management-system-for-lightweight-device-networks
#3
Zahid Mahmood, Huansheng Ning, AtaUllah Ghafoor
Wireless Sensor Networks (WSNs) consist of lightweight devices to measure sensitive data that are highly vulnerable to security attacks due to their constrained resources. In a similar manner, the internet-based lightweight devices used in the Internet of Things (IoT) are facing severe security and privacy issues because of the direct accessibility of devices due to their connection to the internet. Complex and resource-intensive security schemes are infeasible and reduce the network lifetime. In this regard, we have explored the polynomial distribution-based key establishment schemes and identified an issue that the resultant polynomial value is either storage intensive or infeasible when large values are multiplied...
March 24, 2017: Sensors
https://www.readbyqxmd.com/read/28338615/node-self-deployment-algorithm-based-on-pigeon-swarm-optimization-for-underwater-wireless-sensor-networks
#4
Shanen Yu, Yiming Xu, Peng Jiang, Feng Wu, Huan Xu
At present, free-to-move node self-deployment algorithms aim at event coverage and cannot improve network coverage under the premise of considering network connectivity, network reliability and network deployment energy consumption. Thus, this study proposes pigeon-based self-deployment algorithm (PSA) for underwater wireless sensor networks to overcome the limitations of these existing algorithms. In PSA, the sink node first finds its one-hop nodes and maximizes the network coverage in its one-hop region. The one-hop nodes subsequently divide the network into layers and cluster in each layer...
March 24, 2017: Sensors
https://www.readbyqxmd.com/read/28338285/remote-control-of-cellular-functions-the-role-of-smart-nanomaterials-in-the-medicine-of-the-future
#5
REVIEW
Giada Graziana Genchi, Attilio Marino, Agostina Grillone, Ilaria Pezzini, Gianni Ciofani
The remote control of cellular functions through smart nanomaterials represents a biomanipulation approach with unprecedented potential applications in many fields of medicine, ranging from cancer therapy to tissue engineering. By actively responding to external stimuli, smart nanomaterials act as real nanotransducers able to mediate and/or convert different forms of energy into both physical and chemical cues, fostering specific cell behaviors. This report describes those classes of nanomaterials that have mostly paved the way to a "wireless" control of biological phenomena, focusing the discussion on some examples close to the clinical practice...
March 24, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28335572/efficient-and-security-enhanced-anonymous-authentication-with-key-agreement-scheme-in-wireless-sensor-networks
#6
Jaewook Jung, Jongho Moon, Donghoon Lee, Dongho Won
At present, users can utilize an authenticated key agreement protocol in a Wireless Sensor Network (WSN) to securely obtain desired information, and numerous studies have investigated authentication techniques to construct efficient, robust WSNs. Chang et al. recently presented an authenticated key agreement mechanism for WSNs and claimed that their authentication mechanism can both prevent various types of attacks, as well as preserve security properties. However, we have discovered that Chang et al's method possesses some security weaknesses...
March 21, 2017: Sensors
https://www.readbyqxmd.com/read/28335568/an-electricity-price-aware-open-source-smart-socket-for-the-internet-of-energy
#7
Óscar Blanco-Novoa, Tiago M Fernández-Caramés, Paula Fraga-Lamas, Luis Castedo
The Internet of Energy (IoE) represents a novel paradigm where electrical power systems work cooperatively with smart devices to increase the visibility of energy consumption and create safer, cleaner and sustainable energy systems. The implementation of IoE services involves the use of multiple components, like embedded systems, power electronics or sensors, which are an essential part of the infrastructure dedicated to the generation and distribution energy and the one required by the final consumer. This article focuses on the latter and presents a smart socket system that collects the information about energy price and makes use of sensors and actuators to optimize home energy consumption according to the user preferences...
March 21, 2017: Sensors
https://www.readbyqxmd.com/read/28335537/an-effective-and-robust-decentralized-target-tracking-scheme-in-wireless-camera-sensor-networks
#8
Pengcheng Fu, Yongbo Cheng, Hongying Tang, Baoqing Li, Jun Pei, Xiaobing Yuan
In this paper, we propose an effective and robust decentralized tracking scheme based on the square root cubature information filter (SRCIF) to balance the energy consumption and tracking accuracy in wireless camera sensor networks (WCNs). More specifically, regarding the characteristics and constraints of camera nodes in WCNs, some special mechanisms are put forward and integrated in this tracking scheme. First, a decentralized tracking approach is adopted so that the tracking can be implemented energy-efficiently and steadily...
March 20, 2017: Sensors
https://www.readbyqxmd.com/read/28335534/a-networked-sensor-system-for-the-analysis-of-plot-scale-hydrology
#9
German Villalba, Fernando Plaza, Xiaoyang Zhong, Tyler W Davis, Miguel Navarro, Yimei Li, Thomas A Slater, Yao Liang, Xu Liang
This study presents the latest updates to the Audubon Society of Western Pennsylvania (ASWP) testbed, a $50,000 USD, 104-node outdoor multi-hop wireless sensor network (WSN). The network collects environmental data from over 240 sensors, including the EC-5, MPS-1 and MPS-2 soil moisture and soil water potential sensors and self-made sap flow sensors, across a heterogeneous deployment comprised of MICAz, IRIS and TelosB wireless motes. A low-cost sensor board and software driver was developed for communicating with the analog and digital sensors...
March 20, 2017: Sensors
https://www.readbyqxmd.com/read/28335494/cooperative-opportunistic-pressure-based-routing-for-underwater-wireless-sensor-networks
#10
Nadeem Javaid, Muhammad, Arshad Sher, Wadood Abdul, Iftikhar Azim Niaz, Ahmad Almogren, Atif Alamri
In this paper, three opportunistic pressure based routing techniques for underwater wireless sensor networks (UWSNs) are proposed. The first one is the cooperative opportunistic pressure based routing protocol (Co-Hydrocast), second technique is the improved Hydrocast (improved-Hydrocast), and third one is the cooperative improved Hydrocast (Co-improved Hydrocast). In order to minimize lengthy routing paths between the source and the destination and to avoid void holes at the sparse networks, sensor nodes are deployed at different strategic locations...
March 19, 2017: Sensors
https://www.readbyqxmd.com/read/28335415/time-modulated-arrays-from-their-origin-to-their-utilization-in-wireless-communication-systems
#11
REVIEW
Roberto Maneiro-Catoira, Julio Brégains, José A García-Naya, Luis Castedo
Time-modulated arrays (TMAs) are electromagnetic systems whose radiated power pattern is controlled by the application of variable-width periodical pulses to the individual elements. The nonlinear nature of the array operation causes the appearance of radiation patterns at the harmonic frequencies of such periodic pulses. The technique can be used for improving the side-lobe level (SLL) topology of the radiation pattern at the central frequency and/or to profitably exploit the harmonic patterns in order to supply smart antenna capabilities...
March 14, 2017: Sensors
https://www.readbyqxmd.com/read/28332042/the-effect-of-wi-fi-electromagnetic-waves-in-unimodal-and-multimodal-object-recognition-tasks-in-male-rats
#12
Amin Hassanshahi, Seyed Ali Shafeie, Iman Fatemi, Elham Hassanshahi, Mohammad Allahtavakoli, Mohammad Shabani, Ali Roohbakhsh, Ali Shamsizadeh
Wireless internet (Wi-Fi) electromagnetic waves (2.45 GHz) have widespread usage almost everywhere, especially in our homes. Considering the recent reports about some hazardous effects of Wi-Fi signals on the nervous system, this study aimed to investigate the effect of 2.4 GHz Wi-Fi radiation on multisensory integration in rats. This experimental study was done on 80 male Wistar rats that were allocated into exposure and sham groups. Wi-Fi exposure to 2.4 GHz microwaves [in Service Set Identifier mode (23...
March 22, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28330768/estrous-detection-by-monitoring-ventral-tail-base-surface-temperature-using-a-wearable-wireless-sensor-in-cattle
#13
Ryotaro Miura, Koji Yoshioka, Toru Miyamoto, Hirofumi Nogami, Hironao Okada, Toshihiro Itoh
In the present study, the ventral tail base surface temperature (ST) was monitored using a wearable wireless sensor for estrus detection in cattle. Relationships among ST, behavioral estrus expression, ovulation, and changes in hormone profiles during the estrous cycle were examined. Holstein Friesian or Japanese Black female cattle were used in summer (August-September), autumn (October-November) and winter (January-February; three animals per season). On Day 11 of the estrous cycle (Day 0=the day of ovulation), the sensor was attached to the surface of the ventral tail base and ST was measured every 2min until Day 11 of the next estrous cycle...
March 11, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28328511/wireless-power-transfer-strategies-for-implantable-bioelectronics-methodological-review
#14
Kush Agarwal, Rangarajan Jegadeesan, Yong-Xin Guo, Nitish V Thakor
Neural implants have emerged over the last decade as highly effective solutions for the treatment of dysfunctions and disorders of the nervous system. These implants establish a direct, often bidirectional, interface to the nervous system, both sensing neural signals and providing therapeutic treatments. As a result of the technological progress and successful clinical demonstrations, completely implantable solutions have become a reality and are now commercially available for the treatment of various functional disorders...
March 16, 2017: IEEE Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/28328494/hearing-aid-technology-for-the-21st-century-a-proposal-for-universal-wireless-connectivity-and-improved-sound-quality
#15
Richard Einhorn
Approximately 360 million people in the world live with a debilitating hearing loss. The most common conditions-age-related and noise-induced sensorineural hearing loss-are both progressive and, for the foreseeable future, neither curable nor reversible.
March 2017: IEEE Pulse
https://www.readbyqxmd.com/read/28327115/clinically-acceptable-agreement-between-the-vimove-wireless-motion-sensor-system-and-the-vicon-motion-capture-system-when-measuring-lumbar-region-inclination-motion-in-the-sagittal-and-coronal-planes
#16
Hanne Leirbekk Mjøsund, Eleanor Boyle, Per Kjaer, Rune Mygind Mieritz, Tue Skallgård, Peter Kent
BACKGROUND: Wireless, wearable, inertial motion sensor technology introduces new possibilities for monitoring spinal motion and pain in people during their daily activities of work, rest and play. There are many types of these wireless devices currently available but the precision in measurement and the magnitude of measurement error from such devices is often unknown. This study investigated the concurrent validity of one inertial motion sensor system (ViMove) for its ability to measure lumbar inclination motion, compared with the Vicon motion capture system...
March 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28324976/meandered-conformai-antenna-for-ism-band-ingestible-capsule-communication-systems
#17
Md Shamsul Arefin, Jean-Michel Redoute, Mehmet Rasit Yuce
The wireless capsule has been used to measure physiological parameters in the gastrointestinal tract where communication from in-body to external receiver is necessary using a miniaturized antenna with high gain and onmidirectional radiation pattern. This paper presents a meandered conformal antenna with center frequency of 433 MHz for a wireless link between an in-body capsule system and an ex-body receiver system. The antenna is wrapped around the wireless capsule, which provides extra space for other circuits and sensors inside the capsule as well as allows it having larger dimensions compared to inner antennas...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324933/an-ultrasonically-powered-implantable-device-for-targeted-drug-delivery
#18
Jayant Charthad, Spyridon Baltsavias, Devleena Samanta, Ting Chia Chang, Marcus J Weber, Niloufar Hosseini-Nassab, Richard N Zare, Amin Arbabian
A wirelessly powered implantable device is proposed for fully programmable and localized drug delivery. The implant is powered using an external ultrasonic transmitter and operates at <; 5% of the FDA diagnostic ultrasound intensity limit. Drug release is achieved through electrical stimulation of drug-loaded polypyrrole nanoparticles. A design methodology for the implant electronics is presented and experimentally demonstrated to be accurate in predicting the concentration of the released drug. To the best of our knowledge, this is the first ultrasonically powered implantable device platform for targeted drug delivery using electroresponsive polymers...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28323457/n-of-1-study-of-weight-loss-maintenance-assessing-predictors-of-physical-activity-adherence-to-weight-loss-plan-and-weight-change
#19
Dominika Kwasnicka, Stephan U Dombrowski, Martin White, Falko F Sniehotta
OBJECTIVE: Behaviour change interventions are effective in supporting individuals to achieve clinically significant weight loss, but weight loss maintenance (WLM) is less often attained. This study examined predictive variables associated with WLM. DESIGN: N-of-1 study with daily ecological momentary assessment combined with objective measurement of weight and physical activity, collected with wireless devices (Fitbit™) for six months. Eight previously obese adults who had lost over 5% of their body weight in the past year took part...
March 21, 2017: Psychology & Health
https://www.readbyqxmd.com/read/28321329/utility-of-the-wireless-motility-capsule-and-lactulose-breath-testing-in-the-evaluation-of-patients-with-parkinson-s-disease-who-present-with-functional-gastrointestinal-symptoms
#20
Andrew Su, Rita Gandhy, Carrolee Barlow, George Triadafilopoulos
BACKGROUND: The aetiology and origin of gastrointestinal symptoms in Parkinson's disease (PD) remains poorly understood. Gastroparesis, small bowel transit delay and bacterial overgrowth may, individually or collectively, play a role. AIMS: In patients with PD and functional gastrointestinal symptoms, we aimed to determine the utility of the wireless motility capsule and lactulose breath tests in further defining their symptoms' aetiology. METHODS: In this retrospective cohort study, consecutive patients with PD and functional gastrointestinal symptoms underwent clinical assessment, as well as wireless motility capsule and lactulose breath testing using standard protocols...
2017: BMJ Open Gastroenterology
keyword
keyword
21594
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"