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https://www.readbyqxmd.com/read/28117703/euro-banknote-recognition-system-for-blind-people
#1
Larisa Dunai Dunai, Mónica Chillarón Pérez, Guillermo Peris-Fajarnés, Ismael Lengua Lengua
This paper presents the development of a portable system with the aim of allowing blind people to detect and recognize Euro banknotes. The developed device is based on a Raspberry Pi electronic instrument and a Raspberry Pi camera, Pi NoIR (No Infrared filter) dotted with additional infrared light, which is embedded into a pair of sunglasses that permit blind and visually impaired people to independently handle Euro banknotes, especially when receiving their cash back when shopping. The banknote detection is based on the modified Viola and Jones algorithms, while the banknote value recognition relies on the Speed Up Robust Features (SURF) technique...
January 20, 2017: Sensors
https://www.readbyqxmd.com/read/28076444/wiseeye-next-generation-expandable-and-programmable-camera-trap-platform-for-wildlife-research
#2
Sajid Nazir, Scott Newey, R Justin Irvine, Fabio Verdicchio, Paul Davidson, Gorry Fairhurst, René van der Wal
The widespread availability of relatively cheap, reliable and easy to use digital camera traps has led to their extensive use for wildlife research, monitoring and public outreach. Users of these units are, however, often frustrated by the limited options for controlling camera functions, the generation of large numbers of images, and the lack of flexibility to suit different research environments and questions. We describe the development of a user-customisable open source camera trap platform named 'WiseEye', designed to provide flexible camera trap technology for wildlife researchers...
2017: PloS One
https://www.readbyqxmd.com/read/28048257/th-c-brb-01-open-source-hardware-general-overview
#3
F Therriault-Proulx
: By definition, Open Source Hardware (OSH) is "hardware whose design is made publicly available so that anyone can study, modify, distribute, make, and sell the design or hardware based on that design". The advantages of OSH are multiple and the movement has been growing exponentially over the last couple years, leading to the spread and evolution of 3D printing technologies, the creation of affordable and easy to use micro-controller boards (Arduino, Raspberry Pi, etc.), as well as a plurality of other "hands-on"/DIY projects...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047610/th-c-brb-02-open-source-medical-devices-lessons-learned-from-a-complex-collaborative-research-project
#4
S Prajapati
: By definition, Open Source Hardware (OSH) is "hardware whose design is made publicly available so that anyone can study, modify, distribute, make, and sell the design or hardware based on that design". The advantages of OSH are multiple and the movement has been growing exponentially over the last couple years, leading to the spread and evolution of 3D printing technologies, the creation of affordable and easy to use micro-controller boards (Arduino, Raspberry Pi, etc.), as well as a plurality of other "hands-on"/DIY projects...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047153/th-c-brb-00-open-source-hardware-in-medical-physics-and-its-potential-to-accelerate-innovation
#5
Francois Therriault-Proulx
: By definition, Open Source Hardware (OSH) is "hardware whose design is made publicly available so that anyone can study, modify, distribute, make, and sell the design or hardware based on that design". The advantages of OSH are multiple and the movement has been growing exponentially over the last couple years, leading to the spread and evolution of 3D printing technologies, the creation of affordable and easy to use micro-controller boards (Arduino, Raspberry Pi, etc.), as well as a plurality of other "hands-on"/DIY projects...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046962/th-c-brb-03-open-source-hardware-in-the-context-of-simple-and-widely-shared-clinical-applications
#6
J Cunha
: By definition, Open Source Hardware (OSH) is "hardware whose design is made publicly available so that anyone can study, modify, distribute, make, and sell the design or hardware based on that design". The advantages of OSH are multiple and the movement has been growing exponentially over the last couple years, leading to the spread and evolution of 3D printing technologies, the creation of affordable and easy to use micro-controller boards (Arduino, Raspberry Pi, etc.), as well as a plurality of other "hands-on"/DIY projects...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27899319/cost-effective-raspberry-pi-based-radio-frequency-identification-tagging-of-mice-suitable-for-automated-in-vivo-imaging
#7
Federico Bolaños, Jeff M LeDue, Timothy H Murphy
BACKGROUND: Automation of animal experimentation improves consistency, reduces potential for error while decreasing animal stress and increasing well-being. Radio frequency identification (RFID) tagging can identify individual mice in group housing environments enabling animal-specific tracking of physiological parameters. NEW METHOD: We describe a simple protocol to radio frequency identification (RFID) tag and detect mice. RFID tags were injected sub-cutaneously after brief isoflurane anesthesia and do not require surgical steps such as suturing or incisions...
January 30, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27898002/design-of-a-solar-tracking-system-using-the-brightest-region-in-the-sky-image-sensor
#8
Ching-Chuan Wei, Yu-Chang Song, Chia-Chi Chang, Chuan-Bi Lin
Solar energy is certainly an energy source worth exploring and utilizing because of the environmental protection it offers. However, the conversion efficiency of solar energy is still low. If the photovoltaic panel perpendicularly tracks the sun, the solar energy conversion efficiency will be improved. In this article, we propose an innovative method to track the sun using an image sensor. In our method, it is logical to assume the points of the brightest region in the sky image representing the location of the sun...
November 25, 2016: Sensors
https://www.readbyqxmd.com/read/27894782/transitioning-eeg-experiments-away-from-the-laboratory-using-a-raspberry-pi-2
#9
Jonathan W P Kuziek, Axita Shienh, Kyle E Mathewson
BACKGROUND: Electroencephalography (EEG) experiments are typically performed in controlled laboratory settings to minimise noise and produce reliable measurements. These controlled conditions also reduce the applicability of the obtained results to more varied environments and may limit their relevance to everyday situations. NEW METHOD: Advances in computer portability may increase the mobility and applicability of EEG results while decreasing costs. In this experiment we show that stimulus presentation using a Raspberry Pi 2 computer provides a low cost, reliable alternative to a traditional desktop PC in the administration of EEG experimental tasks...
February 1, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27782054/ultraviolet-imaging-with-low-cost-smartphone-sensors-development-and-application-of-a-raspberry-pi-based-uv-camera
#10
Thomas C Wilkes, Andrew J S McGonigle, Tom D Pering, Angus J Taggart, Benjamin S White, Robert G Bryant, Jon R Willmott
Here, we report, for what we believe to be the first time, on the modification of a low cost sensor, designed for the smartphone camera market, to develop an ultraviolet (UV) camera system. This was achieved via adaptation of Raspberry Pi cameras, which are based on back-illuminated complementary metal-oxide semiconductor (CMOS) sensors, and we demonstrated the utility of these devices for applications at wavelengths as low as 310 nm, by remotely sensing power station smokestack emissions in this spectral region...
October 6, 2016: Sensors
https://www.readbyqxmd.com/read/27594930/black-raspberries-in-cancer-clinical-trials-past-present-and-future
#11
Laura A Kresty, Susan R Mallery, Gary D Stoner
BACKGROUND: Black raspberries (BRB) inhibit a broad range of cancers in preclinical models, including in vivo models of oral, esophageal, colon, breast and skin cancer. Promising preclinical results have led to clinical evaluations in cancer patients or patients at increased risk for cancer development. OBJECTIVE: To summarize clinical investigations targeting cancer or precancerous lesions with BRB and discuss future directions. METHODS: A thorough literature search was conducted through December 1, 2015 to identify all published studies evaluating BRB in cancer focused clinical trials...
2016: Journal of Berry Research
https://www.readbyqxmd.com/read/27409421/a-phase-i-pilot-study-evaluating-the-beneficial-effects-of-black-raspberries-in-patients-with-barrett-s-esophagus
#12
Laura A Kresty, John J Fromkes, Wendy L Frankel, Cynthia D Hammond, Navindra P Seeram, Maureen Baird, Gary D Stoner
Black raspberries inhibit a broad range of cancers in preclinical models which has led to clinical evaluations targeting premalignant lesions of the colon, oral cavity and esophagus. A phase I pilot study was conducted in twenty Barrett's esophagus (BE) patients to investigate the effect of lyophilized black raspberries (LBR) on urinary metabolites and markers of lipid peroxidation, DNA damage and tissue markers of cellular proliferation, detoxification, and inflammation. Surveys, biopsies, blood and urine samples were collected before and after 6 months of LBR treatment (32 or 45 g)...
July 7, 2016: Oncotarget
https://www.readbyqxmd.com/read/27065801/identification-of-a-novel-gnao-mediated-alternate-olfactory-signaling-pathway-in-murine-osns
#13
Paul Scholz, Julia Mohrhardt, Fabian Jansen, Benjamin Kalbe, Claudia Haering, Katharina Klasen, Hanns Hatt, Sabrina Osterloh
It is generally agreed that in olfactory sensory neurons (OSNs), the binding of odorant molecules to their specific olfactory receptor (OR) triggers a cAMP-dependent signaling cascade, activating cyclic-nucleotide gated (CNG) channels. However, considerable controversy dating back more than 20 years has surrounded the question of whether alternate signaling plays a role in mammalian olfactory transduction. In this study, we demonstrate a specific alternate signaling pathway in Olfr73-expressing OSNs. Methylisoeugenol (MIEG) and at least one other known weak Olfr73 agonist (Raspberry Ketone) trigger a signaling cascade independent from the canonical pathway, leading to the depolarization of the cell...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27006868/bringing-computational-science-to-the-public
#14
James L McDonagh, Daniel Barker, Rosanna G Alderson
BACKGROUND: The increasing use of computers in science allows for the scientific analyses of large datasets at an increasing pace. We provided examples and interactive demonstrations at Dundee Science Centre as part of the 2015 Women in Science festival, to present aspects of computational science to the general public. We used low-cost Raspberry Pi computers to provide hands on experience in computer programming and demonstrated the application of computers to biology. Computer games were used as a means to introduce computers to younger visitors...
2016: SpringerPlus
https://www.readbyqxmd.com/read/26861340/fingerscanner-embedding-a-fingerprint-scanner-in-a-raspberry-pi
#15
Jordi Sapes, Francesc Solsona
Nowadays, researchers are paying increasing attention to embedding systems. Cost reduction has lead to an increase in the number of platforms supporting the operating system Linux, jointly with the Raspberry Pi motherboard. Thus, embedding devices on Raspberry-Linux systems is a goal in order to make competitive commercial products. This paper presents a low-cost fingerprint recognition system embedded into a Raspberry Pi with Linux.
2016: Sensors
https://www.readbyqxmd.com/read/26462790/comparison-of-the-protein-coding-gene-content-of-chlamydia-trachomatis-and-protochlamydia-amoebophila-using-a-raspberry-pi-computer
#16
COMPARATIVE STUDY
James F Robson, Daniel Barker
BACKGROUND: To demonstrate the bioinformatics capabilities of a low-cost computer, the Raspberry Pi, we present a comparison of the protein-coding gene content of two species in phylum Chlamydiae: Chlamydia trachomatis, a common sexually transmitted infection of humans, and Candidatus Protochlamydia amoebophila, a recently discovered amoebal endosymbiont. Identifying species-specific proteins and differences in protein families could provide insights into the unique phenotypes of the two species...
2015: BMC Research Notes
https://www.readbyqxmd.com/read/26368172/compact-and-low-cost-thz-qtds-system
#17
Thorsten Probst, Arno Rehn, Martin Koch
We present a terahertz quasi time domain spectroscopy (QTDS) system setup which is improved regarding cost and compactness. The diode laser is mounted directly onto the optical delay line, making the optical setup more compact. The system is operated using a Raspberry Pi and an additional sound card. This combination replaces the desktop/laptop computer, the lock-in-amplifier, the stage controller and the signal generator. We examined not only a commercially available stepper motor driven delay line, but also the repurposed internal mechanics from a DVD drive...
August 24, 2015: Optics Express
https://www.readbyqxmd.com/read/26274961/high-frequency-sampling-of-ttl-pulses-on-a-raspberry-pi-for-diffuse-correlation-spectroscopy-applications
#18
Matthew Tivnan, Rajan Gurjar, David E Wolf, Karthik Vishwanath
Diffuse Correlation Spectroscopy (DCS) is a well-established optical technique that has been used for non-invasive measurement of blood flow in tissues. Instrumentation for DCS includes a correlation device that computes the temporal intensity autocorrelation of a coherent laser source after it has undergone diffuse scattering through a turbid medium. Typically, the signal acquisition and its autocorrelation are performed by a correlation board. These boards have dedicated hardware to acquire and compute intensity autocorrelations of rapidly varying input signal and usually are quite expensive...
2015: Sensors
https://www.readbyqxmd.com/read/26157473/an-online-peak-extraction-algorithm-for-ion-mobility-spectrometry-data
#19
Dominik Kopczynski, Sven Rahmann
Ion mobility (IM) spectrometry (IMS), coupled with multi-capillary columns (MCCs), has been gaining importance for biotechnological and medical applications because of its ability to detect and quantify volatile organic compounds (VOC) at low concentrations in the air or in exhaled breath at ambient pressure and temperature. Ongoing miniaturization of spectrometers creates the need for reliable data analysis on-the-fly in small embedded low-power devices. We present the first fully automated online peak extraction method for MCC/IMS measurements consisting of several thousand individual spectra...
2015: Algorithms for Molecular Biology: AMB
https://www.readbyqxmd.com/read/26129605/th-ef-brb-05-dynamic-blade-collimation-for-image-quality-improvement-and-dose-reduction-in-cbct-guidance
#20
D Parsons, J Robar
PURPOSE: The focus of this work is the development of a novel blade collimation system enabling volume-of-interest (VOI) CBCT using the kV source on a TrueBeam linear accelerator (linac). Advantages of the system are assessed, particularly with regard to reduction and localization of dose, as well as improvement of image quality. METHODS: A four blade dynamic kV collimator was developed to track a VOI during a CBCT acquisition. The system is controlled using a Raspberry Pi computer placed within the linac gantry...
June 2015: Medical Physics
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