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https://www.readbyqxmd.com/read/29090743/a-combination-of-raspberry-pi-and-softether-vpn-for-controlling-research-devices-via-the-internet
#1
Toshikazu Kuroda
Remote control over devices for experiments may increase the efficiency of operant research and expand the area where behavior can be studied. This article introduces a combination of Raspberry Pi® (Pi) and SoftEther VPN® that allows for such remote control via the Internet. The Pi is a small Linux computer with a great degree of flexibility for customization. Test results indicate that a Pi-based interface meets the requirement for conducting operant research. SoftEther VPN® allows for establishing an extensive private network on the Internet using a single private Wi-Fi router...
November 1, 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/29083943/assessing-tether-anchor-labeling-and-usability-in-pickup-trucks
#2
Kathleen D Klinich, Miriam A Manary, Laura A Malik, Carol A Flannagan, Jessica S Jermakian
OBJECTIVE: Investigate vehicle factors associated with child restraint tether use and misuse in pickup trucks and evaluate four labeling interventions designed to educate consumers on proper tether use. METHODS: Volunteer testing was performed with 24 subjects and four different pickup trucks. Each subject performed eight child restraint installations among the four pickups using two forward-facing restraints: a Britax Marathon G4.1 and an Evenflo Triumph. Vehicles were selected to represent four different implementations of tether anchors among pickups: plastic loop routers (Chevrolet Silverado), webbing routers (Ram), back wall anchors (Nissan Frontier), and webbing routers plus metal anchors (Toyota Tundra)...
October 30, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/29083191/near-field-mapping-of-optical-fabry-perot-modes-in-all-dielectric-nanoantennas
#3
Aleksandr Yu Frolov, Niels Verellen, Jiaqi Li, Xuezhi Zheng, Hanna Paddubrouskaya, Denitza Denkova, Maxim R Shcherbakov, Guy A E Vandenbosch, Vladimir I Panov, Pol Van Dorpe, Andrey A Fedyanin, Victor V Moshchalkov
Subwavelength optical resonators and scatterers are dramatically expanding the toolset of the optical sciences and photonics engineering. By offering the opportunity to control and shape light waves in nanoscale volumes, recent developments using high-refractive-index dielectric scatterers gave rise to efficient flat-optical components such as lenses, polarizers, phase plates, color routers, and nonlinear elements with a subwavelength thickness. In this work, we take a deeper look into the unique interaction of light with rod-shaped amorphous silicon scatterers by tapping into their resonant modes with a localized subwavelength light source-an aperture scanning near-field probe...
November 1, 2017: Nano Letters
https://www.readbyqxmd.com/read/29060951/systematic-node-management-mechanism-using-zigbee-based-real-time-vital-sign-information-monitoring-system-to-manage-large-numbers-of-patients
#4
Ke-Feng Lin, Shih-Sung Lin, Min-Hsiung Hung, Chung-Hsien Kuo, Ping-Nan Chen
BACKGROUND: Local hospitals must deal with large numbers of patients during mass casualty incidents, and the wireless sensor networks (WSNs) can help in these situations by monitoring vital signs. Conventional ZigBee nodes can obtain the ID of a device by assigning a unique 16-bit short address or by burning firmware into an IC. These methods tend to complicate node management and lack portability. OBJECTIVE: The study developed a node management mechanism to deal with a large number of patients in real-time, through the wireless monitoring of physiological signals...
October 13, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29047718/beam-splitter-and-router-via-an-incoherent-pump-assisted-electromagnetically-induced-blazed-grating
#5
Yu-Yuan Chen, Zhuan-Zhuan Liu, Ren-Gang Wan
We propose a scheme for a beam splitter and a beam router via an electromagnetically induced blazed grating in a four-level double-Λ system driven by an intensity-modulated coupling field and an incoherent pump field. The blazed grating relies on the incoherent pump process, which helps in inducing large refractivity with suppressed absorption or even gain. Consequently, the weak probe beam can be effectively deflected with high diffraction efficiency, and, meanwhile, its energy is amplified. When using an intensity mask with two symmetric domains in the coupling field, the presented blazed grating provides the possibility of a symmetric beam splitter...
July 10, 2017: Applied Optics
https://www.readbyqxmd.com/read/29041319/8-x-8-wavelength-router-of-optical-network-on-chip
#6
Guofang Fan, Regis Orobtchouk, Bing Han, Yuan Li, Hongyu Li
An integrated 8 x 8 wavelength router based on the micro-ring resonators using 2 x 2 multi-interference (MMI) crossing is demonstrated on silicon-on-insulator (SOI) technology, which is manufactured with microelectronics equipment. Experimental results show a free spectral range (FSR) about ~37 nm, an on/off contrast larger than 20 dB, an imbalance among the channels less than 2 dB, a crosstalk of channels smaller than -10 dB, a spacing between close channels about 3.6 ± 0.7 nm and an output efficiency of every channel smaller than 20 dB...
October 2, 2017: Optics Express
https://www.readbyqxmd.com/read/28949654/unidirectional-excitation-of-radiative-loss-free-surface-plasmon-polaritons-in-pt-symmetric-systems
#7
Wei Wang, Lu-Qi Wang, Rui-Dong Xue, Hao-Ling Chen, Rui-Peng Guo, Yongmin Liu, Jing Chen
We investigate the excitation and propagation of surface plasmon polaritons (SPPs) at a geometrically flat metal-dielectric interface with a parity-time (PT) symmetric modulation on the permittivity ϵ(x) of the dielectric medium. We show that two striking effects can be simultaneously achieved thanks to the nonreciprocal nature of the Bloch modes in the system. First, SPPs can be unidirectionally excited when light is normally incident on the interface. Secondly, the backscattering of SPPs into the far field is suppressed, producing a radiative-loss-free effect on the unidirectional SPPs...
August 18, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28938855/electroencephalographic-resting-state-networks-source-localization-of-microstates
#8
Anna Custo, Dimitri Van De Ville, William M Wells, Miralena I Tomescu, Denis Brunet, Christoph M Michel
Using electroencephalography (EEG) to elucidate the spontaneous activation of brain resting-state networks (RSNs) is nontrivial as the signal of interest is of low amplitude and it is difficult to distinguish the underlying neural sources. Using the principles of electric field topographical analysis, it is possible to estimate the meta-stable states of the brain (i.e., the resting-state topographies, so-called microstates). We estimated seven resting-state topographies explaining the EEG data set with k-means clustering (N = 164, 256 electrodes)...
November 17, 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28923814/new-method-for-real-time-influenza-surveillance-in-primary-care-a-wisconsin-research-and-education-network-wren-supported-study
#9
Jonathan L Temte, Shari Barlow, Amber Schemmel, Emily Temte, David L Hahn, Erik Reisdorf, Peter Shult, John Tamerius
INTRODUCTION: The goal of public health infectious disease surveillance systems is to provide accurate laboratory results in near-real time. When it comes to influenza surveillance, most current systems are encumbered with inherent delays encountered in the real-life chaos of medical practice. To combat this, we implemented and tested near-real-time surveillance using a rapid influenza detection test (RIDT) coupled with immediate, wireless transmission of results to public health entities...
September 2017: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28892632/gan-metalens-for-pixel-level-full-color-routing-at-visible-light
#10
Bo Han Chen, Pin Chieh Wu, Vin-Cent Su, Yi-Chieh Lai, Cheng Hung Chu, I Chen Lee, Jia-Wern Chen, Yu Han Chen, Yung-Chiang Lan, Chieh-Hsiung Kuan, Din Ping Tsai
Metasurface-based components are known to be one of the promising candidates for developing flat optical systems. However, their low working efficiency highly limits the use of such flat components for feasible applications. Although the introduction of the metallic mirror has been demonstrated to successfully enhance the efficiency, it is still somehow limited for imaging and sensing applications because they are only available for devices operating in a reflection fashion. Here, we demonstrate three individual GaN-based metalenses working in a transmission window with extremely high operation efficiency at visible light (87%, 91...
October 11, 2017: Nano Letters
https://www.readbyqxmd.com/read/28868989/ergonomics-investigation-for-orientation-of-the-handles-of-wood-routers
#11
Siddharth Bhardwaj, Abid Ali Khan
Improperly designed hand tools not only exposes the workers to potential health risks but also hamper their productivity. This study tries to improve the ergonomics of wood routing tasks, suggesting better handle orientations for hand held wood routers. In this study, seven different handle combinations were tested over two routing tasks (beading and dado) in regard with perceived discomfort, electromyography (EMG) of biceps brachi (BB) and extensor carpi radialis brevis (ECRB), and hand-arm vibrations (HAV)...
September 4, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28773919/high-speed-edge-trimming-of-cfrp-and-online-monitoring-of-performance-of-router-tools-using-acoustic-emission
#12
Rangasamy Prakash, Vijayan Krishnaraj, Redouane Zitoune, Jamal Sheikh-Ahmad
Carbon fiber reinforced polymers (CFRPs) have found wide-ranging applications in numerous industrial fields such as aerospace, automotive, and shipping industries due to their excellent mechanical properties that lead to enhanced functional performance. In this paper, an experimental study on edge trimming of CFRP was done with various cutting conditions and different geometry of tools such as helical-, fluted-, and burr-type tools. The investigation involves the measurement of cutting forces for the different machining conditions and its effect on the surface quality of the trimmed edges...
September 26, 2016: Materials
https://www.readbyqxmd.com/read/28703761/a-wi-fi-union-mechanism-for-internet-advertising-reciprocal-platform-in-microenterprises
#13
Thi Thanh An Nguyen, Che-Pin Chang, Shyan-Ming Yuan
With the evolution of the Internet and smartphone devices, Internet advertising has become one of the most important methods for delivering promotional marketing messages to customers. However, the efficiency of Internet advertising for microenterprise is not very high, since Wi-Fi advertising-which is limited by a small router coverage area-is mainly used. Moreover, because of the lack of money, microenterprises have been using low-cost methods to promote their products. Thus, enhancing the effectiveness of Wi-Fi advertising, and solving the problem of cost and the range of the views are now an essential investigation in this study...
July 13, 2017: Sensors
https://www.readbyqxmd.com/read/28594366/rf-emf-risk-perception-revisited-is-the-focus-on-concern-sufficient-for-risk-perception-studies
#14
Peter M Wiedemann, Frederik Freudenstein, Christoph Böhmert, Joe Wiart, Rodney J Croft
An implicit assumption of risk perception studies is that concerns expressed in questionnaires reflect concerns in everyday life. The aim of the present study is to check this assumption, i.e., the extrapolability of risk perceptions expressed in a survey, to risk perceptions in everyday life. To that end, risk perceptions were measured by a multidimensional approach. In addition to the traditional focus on measuring the magnitude of risk perceptions, the thematic relevance (how often people think about a risk issue) and the discursive relevance (how often people think about or discuss a risk issue) of risk perceptions were also collected...
June 8, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28561103/correlation-and-squeezing-for-optical-transistor-and-intensity-for-router-applications-in-pr-3-yso
#15
Ghulam Abbas Khan, Changbiao Li, Faizan Raza, Noor Ahmed, Abdul Rasheed Mahesar, Irfan Ahmed, Yanpeng Zhang
We realized an optical transistor and router utilizing multi-order fluorescence and spontaneous parametric four-wave mixing. Specifically, the optical routing action was derived from the results of splitting in the intensity signal due to a dressing effect, whereas the transistor as a switch and amplifier was realized by a switching correlation and squeezing via a nonlinear phase. A substantial enhancement of the optical contrast was observed for switching applications using correlation and squeezing contrary to the intensity signal...
June 14, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28522872/integrated-multi-port-circulators-for-unidirectional-optical-information-transport
#16
Parinaz Aleahmad, Mercedeh Khajavikhan, Demetrios Christodoulides, Patrick LiKamWa
On-chip photonic networks hold great promise for enabling next-generation high speed computation and communication systems. It is currently envisioned that future integrated photonic networks will be capable of processing dense digital information on a single monolithic platform by involving a multitude of optical components ranging from lasers to modulators, to routers, interconnects and detectors. Among the possible functionalities to be incorporated in such arrangements is the ability to route information in a unidirectional way among N-ports - a capability typically afforded through the use of optical circulators...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28468375/performance-improvement-for-silicon-based-arrayed-waveguide-grating-router
#17
Jun Zou, Zichun Le, Jinhua Hu, Jian-Jun He
We analyze the impact of aberration on spectral performance of silicon-based arrayed waveguide grating (AWG) router with the conventional design using a constant pitch along the grating circle for the array waveguides near the free propagation region (FPR), and simulation results show that due to existence of large aberration, side lobes occur in spectral responses of peripheral output channels for the center input light while more serious side lobes appear in most output channels within a free spectral range (FSR) for the edge channel input...
May 1, 2017: Optics Express
https://www.readbyqxmd.com/read/28459129/time-saving-and-fail-safe-dissection-method-for-vestibulocochlear-organs-in-gross-anatomy-classes
#18
Ryoji Suzuki, Naoaki Konno, Akimitsu Ishizawa, Yoshinori Kanatsu, Kodai Funakoshi, Hideo Akashi, Ming Zhou, Hiroshi Abe
Because the vestibulocochlear organs are tiny and complex, and are covered by the petrous part of the temporal bone, they are very difficult for medical students to dissect and visualize during gross anatomy classes. Here, we report a time-saving and fail-safe procedure we have devised, using a hand-held hobby router. Nine en bloc temporal bone samples from donated human cadavers were used as trial materials for devising an appropriate procedure for dissecting the vestibulocochlear organs. A hand-held hobby router was used to cut through the temporal bone...
April 29, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28454161/correlation-and-squeezing-for-optical-transistor-and-intensity-router-applications-in-diamond-nv-center
#19
Noor Ahmed, Ghulam Abbas Khan, Ruimin Wang, Jingru Hou, Rui Gong, Lingmeng Yang, Yanpeng Zhang
We study an optical transistor (switch and amplifier) and router by spontaneous parametric four-wave mixing and fluorescence in diamond nitrogen-vacancy (NV) center. The routing results from three peaks of fluorescence signal in the time domain, while the switching and amplification are realized by correlation and squeezing. The intensity switching speed is about 17 ns. The optical transistor and router are controlled by the power of incident beams. Our experimental results provide that the advance technique of peak division and channel equalization ratio of about 90% are applicable to all optical switching and routing...
May 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28403167/wireless-multihop-backhauls-for-rural-areas-a-preliminary-study
#20
Zainab Zaidi, Kun-Chan Lan
Rural areas have very low revenue potential. The major issue in providing low-cost broadband to rural areas is to provide reliable backhaul connections that spread over tens or even hundreds of miles, connecting villages to the nearest service provider. Along with aerial networks of Google and Facebook, there has been a considerable amount of research toward long-distance terrestrial WiFi links. As a comparison, WiFi routers are easier to be deployed and maintained by non-technical people from the local communities, whereas the aerial networks require professional support to operate...
2017: PloS One
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