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https://www.readbyqxmd.com/read/28545245/multimodal-bio-inspired-tactile-sensing-module-for-surface-characterization
#1
Thiago Eustaquio Alves de Oliveira, Ana-Maria Cretu, Emil M Petriu
Robots are expected to recognize the properties of objects in order to handle them safely and efficiently in a variety of applications, such as health and elder care, manufacturing, or high-risk environments. This paper explores the issue of surface characterization by monitoring the signals acquired by a novel bio-inspired tactile probe in contact with ridged surfaces. The tactile module comprises a nine Degree of Freedom Microelectromechanical Magnetic, Angular Rate, and Gravity system (9-DOF MEMS MARG) and a deep MEMS pressure sensor embedded in a compliant structure that mimics the function and the organization of mechanoreceptors in human skin as well as the hardness of the human skin...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545236/thermal-characterization-of-dynamic-silicon-cantilever-array-sensors-by-digital-holographic-microscopy
#2
Marjan Zakerin, Antonin Novak, Masaya Toda, Yves Emery, Filipe Natalio, Hans-Jürgen Butt, Rüdiger Berger
In this paper, we apply a digital holographic microscope (DHM) in conjunction with stroboscopic acquisition synchronization. Here, the temperature-dependent decrease of the first resonance frequency (S₁(T)) and Young's elastic modulus (E₁(T)) of silicon micromechanical cantilever sensors (MCSs) are measured. To perform these measurements, the MCSs are uniformly heated from T₀ = 298 K to T = 450 K while being externally actuated with a piezo-actuator in a certain frequency range close to their first resonance frequencies...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545235/a-high-sensitive-pressure-sensor-using-a-single-mode-fiber-embedded-microbubble-with-thin-film-characteristics
#3
Guanjun Wang, Xinglin Liu, Zhiguo Gui, Yongquan An, Jinyu Gu, Meiqin Zhang, Lu Yan, Gao Wang, Zhibin Wang
A new fiber pressure sensor is proposed and analyzed in this paper. A commercial arc fusion splicer and pressure-assisted arc discharge technology are used here to fabricate a silica hollow microbubble from a common glass tube with the characteristics of a thin film. Then the single mode fiber is embedded into the microbubble to form a fiber Fabry-Perot interferometer by measuring the reflected interference spectrum from the fiber tip and microbubble end. As the wall thickness of the micro-bubble can reach up to several micrometers, it can then be used for measuring the outer pressure with high sensitivity...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545232/sensors-and-actuators-on-determining-parameters-for-being-considered-in-selection-of-elastomers-for-biomimetic-hands
#4
Vlad Cârlescu, Dumitru N Olaru, Gheorghe Prisăcaru, Cezar Oprişan, José Machado
In this paper, the authors present a new methodology to study the viscoelastic behaviour of the human finger. The methodology is based on experimental research consisting of a finger's indentation with a small steel cylindrical object for various indentation speeds. The tests were realized on a CETR UMT-2 Tribometer for indentation speed between 0.02 mm/s and 4 mm/s with a normal load of up to 22 N. Using the force-deformation diagrams recorded at the smallest indentation speed determined the elastic modulus of the human finger according to an adapted Hertzian model...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545231/atmospheric-sampling-on-ascension-island-using-multirotor-uavs
#5
Colin Greatwood, Thomas S Richardson, Jim Freer, Rick M Thomas, A Rob MacKenzie, Rebecca Brownlow, David Lowry, Rebecca E Fisher, Euan G Nisbet
As part of an NERC-funded project investigating the southern methane anomaly, a team drawn from the Universities of Bristol, Birmingham and Royal Holloway flew small unmanned multirotors from Ascension Island for the purposes of atmospheric sampling. The objective of these flights was to collect air samples from below, within and above a persistent atmospheric feature, the Trade Wind Inversion, in order to characterise methane concentrations and their isotopic composition. These parameters allow the methane in the different air masses to be tied to different source locations, which can be further analysed using back trajectory atmospheric computer modelling...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545229/an-iterative-distortion-compensation-algorithm-for-camera-calibration-based-on-phase-target
#6
Yongjia Xu, Feng Gao, Hongyu Ren, Zonghua Zhang, Xiangqian Jiang
Camera distortion is a critical factor affecting the accuracy of camera calibration. A conventional calibration approach cannot satisfy the requirement of a measurement system demanding high calibration accuracy due to the inaccurate distortion compensation. This paper presents a novel camera calibration method with an iterative distortion compensation algorithm. The initial parameters of the camera are calibrated by full-field camera pixels and the corresponding points on a phase target. An iterative algorithm is proposed to compensate for the distortion...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545224/natural-inspired-intelligent-visual-computing-and-its-application-to-viticulture
#7
Li Minn Ang, Kah Phooi Seng, Feng Lu Ge
This paper presents an investigation of natural inspired intelligent computing and its corresponding application towards visual information processing systems for viticulture. The paper has three contributions: (1) a review of visual information processing applications for viticulture; (2) the development of natural inspired computing algorithms based on artificial immune system (AIS) techniques for grape berry detection; and (3) the application of the developed algorithms towards real-world grape berry images captured in natural conditions from vineyards in Australia...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545208/spatio-temporal-analysis-of-particulate-matter-intake-fractions-for-vehicular-emissions-hourly-variation-by-micro-environments-in-the-greater-toronto-and-hamilton-area-canada
#8
Weeberb J Requia, Matthew D Adams, Altaf Arain, Petros Koutrakis, Wan-Chen Lee, Mark Ferguson
Previous investigations have reported intake fraction (iF) for different environments, which include ambient concentrations (outdoor exposure) and microenvironments (indoor exposure). However, little is known about iF variations due to space-time factors, especially in microenvironments. In this paper, we performed a spatio-temporal analysis of particulate matter (PM2.5) intake fractions for vehicular emissions. Specifically, we investigated hourly variation (12:00am-11:00pm) by micro-environments (residences and workplaces) in the Greater Toronto and Hamilton Area (GTHA), Canada...
May 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545162/the-almost-unbearable-lightness-of-personality
#9
Jüri Allik
Researchers seem to believe that accepting the reality of personality traits inevitably leads to a dogma about the incredible complexity of these traits and their judgment. This paper challenges this thesis and its assertion that the accuracy of personality judgment can only be achieved when a "good target" or a "good trait" is being judged using "good information," and when a "good judge" makes the judgment. It is argued that because trait dimensions are universally applicable to all persons there is no stable ranking of good targets...
May 25, 2017: Journal of Personality
https://www.readbyqxmd.com/read/28545155/rapid-diagnostic-tests-for-typhoid-and-paratyphoid-enteric-fever
#10
REVIEW
Lalith Wijedoru, Sue Mallett, Christopher M Parry
BACKGROUND: Differentiating both typhoid (Salmonella Typhi) and paratyphoid (Salmonella Paratyphi A) infection from other causes of fever in endemic areas is a diagnostic challenge. Although commercial point-of-care rapid diagnostic tests (RDTs) for enteric fever are available as alternatives to the current reference standard test of blood or bone marrow culture, or to the widely used Widal Test, their diagnostic accuracy is unclear. If accurate, they could potentially replace blood culture as the World Health Organization (WHO)-recommended main diagnostic test for enteric fever...
May 26, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28545151/provenance-based-data-integrity-checking-and-verification-in-cloud-environments
#11
Muhammad Imran, Helmut Hlavacs, Inam Ul Haq, Bilal Jan, Fakhri Alam Khan, Awais Ahmad
Cloud computing is a recent tendency in IT that moves computing and data away from desktop and hand-held devices into large scale processing hubs and data centers respectively. It has been proposed as an effective solution for data outsourcing and on demand computing to control the rising cost of IT setups and management in enterprises. However, with Cloud platforms user's data is moved into remotely located storages such that users lose control over their data. This unique feature of the Cloud is facing many security and privacy challenges which need to be clearly understood and resolved...
2017: PloS One
https://www.readbyqxmd.com/read/28545123/predictability-of-arousal-in-mouse-slow-wave-sleep-by-accelerometer-data
#12
Gustavo Zampier Dos Santos Lima, Sergio Roberto Lopes, Thiago Lima Prado, Bruno Lobao-Soares, George C do Nascimento, John Fontenele-Araujo, Gilberto Corso
Arousals can be roughly characterized by punctual intrusions of wakefulness into sleep. In a standard perspective, using human electroencephalography (EEG) data, arousals are associated to slow-wave rhythms and K-complex brain activity. The physiological mechanisms that give rise to arousals during sleep are not yet fully understood. Moreover, subtle body movement patterns, which may characterize arousals both in human and in animals, are usually not detectable by eye perception and are not in general present in sleep studies...
2017: PloS One
https://www.readbyqxmd.com/read/28545075/an-improved-ant-colony-optimization-algorithm-with-fault-tolerance-for-job-scheduling-in-grid-computing-systems
#13
Hajara Idris, Absalom E Ezugwu, Sahalu B Junaidu, Aderemi O Adewumi
The Grid scheduler, schedules user jobs on the best available resource in terms of resource characteristics by optimizing job execution time. Resource failure in Grid is no longer an exception but a regular occurring event as resources are increasingly being used by the scientific community to solve computationally intensive problems which typically run for days or even months. It is therefore absolutely essential that these long-running applications are able to tolerate failures and avoid re-computations from scratch after resource failure has occurred, to satisfy the user's Quality of Service (QoS) requirement...
2017: PloS One
https://www.readbyqxmd.com/read/28545074/influence-of-distance-between-residence-and-health-facilities-on-non-communicable-diseases-an-assessment-over-hypertension-and-diabetes-in-bangladesh
#14
Raaj Kishore Biswas, Enamul Kabir
OBJECTIVE: This paper reflected on the prevalence of hypertension and diabetes in Bangladesh, which is spreading rapidly in low-income countries. The rationale of constructing more health centers for addressing NCDs was assessed in this paper by determining the relationship between prevalence of NCDs, particularly hypertension and diabetes, and distance to health facilities. METHODS: From BDHS (Bangladesh Health and Demographic Survey) 2011 data set, 7544 samples were analyzed to demonstrate association between Non-communicable diseases (NCD) and distance from respondents' home to health facilities like hospitals, community clinics, pharmacies or doctors' chambers, and community facilities like market, post office or cinema hall...
2017: PloS One
https://www.readbyqxmd.com/read/28545042/hierarchical-ordering-with-partial-pairwise-hierarchical-relationships-on-the-macaque-brain-data-sets
#15
Woosang Lim, Jungsoo Lee, Yongsub Lim, Doo-Hwan Bae, Haesun Park, Dae-Shik Kim, Kyomin Jung
Hierarchical organizations of information processing in the brain networks have been known to exist and widely studied. To find proper hierarchical structures in the macaque brain, the traditional methods need the entire pairwise hierarchical relationships between cortical areas. In this paper, we present a new method that discovers hierarchical structures of macaque brain networks by using partial information of pairwise hierarchical relationships. Our method uses a graph-based manifold learning to exploit inherent relationship, and computes pseudo distances of hierarchical levels for every pair of cortical areas...
2017: PloS One
https://www.readbyqxmd.com/read/28544977/environmental-radiation-dosimetry-at-argentine-antarctic-marambio-base-64%C3%A2-13-s-56%C3%A2-43-w-preliminary-results
#16
Alba Zanini, Vicente Ciancio, Monica Laurenza, Marisa Storini, Adolfo Esposito, Juan Carlos Terrazas, Paolo Morfino, Alessandro Liberatore, Gustavo Di Giovan
The preliminary results obtained in the first environmental radiation dosimetry campaign performed in the Antarctic region are presented. This experiment is carried out in the framework of CORA (COsmic Rays in Antarctica) Project, a collaboration between Argentine and Italian institutions. After a feasibility study performed in the Antarctic summer 2013, a new campaign has been carried out, started in March 2015, to measure various components of cosmic ray induced secondary atmospheric radiation at the Argentine Marambio Base (Antarctica; 196 m a...
May 22, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28544976/long-range-transport-of-xe-133-emissions-under-convective-and-non-convective-conditions
#17
J Kuśmierczyk-Michulec, M Krysta, M Kalinowski, E Hoffmann, J Baré
To investigate the transport of xenon emissions, the Provisional Technical Secretariat (PTS) operates an Atmospheric Transport Modelling (ATM) system based on the Lagrangian Particle Dispersion Model FLEXPART. The air mass trajectory ideally provides a "link" between a radionuclide release and a detection confirmed by radionuclide measurements. This paper investigates the long-range transport of Xe-133 emissions under convective and non-convective conditions, with special emphasis on evaluating the changes in the simulated activity concentration values due to the inclusion of the convective transport in the ATM simulations...
May 22, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28544912/parallel-gene-selection-and-dynamic-ensemble-pruning-based-on-affinity-propagation
#18
Jun Meng, Jing Zhang, Yu-Shi Luan, Xin-Yu He, Li-Shuang Li, Yuan-Feng Zhu
Gene selection and sample classification based on gene expression data are important research areas in bioinformatics. Selecting important genes closely related to classification is a challenging task due to high dimensionality and small sample size of microarray data. Extended rough set based on neighborhood has been successfully applied to gene selection, as it can select attributes without redundancy and deal with numerical attributes directly. However, the computation of approximations in rough set is extremely time consuming...
May 17, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28544911/arianna-a-research-environment-for-neuroimaging-studies-in-autism-spectrum-disorders
#19
Alessandra Retico, Silvia Arezzini, Paolo Bosco, Sara Calderoni, Alberto Ciampa, Simone Coscetti, Stefano Cuomo, Luca De Santis, Dario Fabiani, Maria Evelina Fantacci, Alessia Giuliano, Enrico Mazzoni, Pietro Mercatali, Giovanni Miscali, Massimiliano Pardini, Margherita Prosperi, Francesco Romano, Elena Tamburini, Michela Tosetti, Filippo Muratori
The complexity and heterogeneity of Autism Spectrum Disorders (ASD) require the implementation of dedicated analysis techniques to obtain the maximum from the interrelationship among many variables that describe affected individuals, spanning from clinical phenotypic characterization and genetic profile to structural and functional brain images. The ARIANNA project has developed a collaborative interdisciplinary research environment that is easily accessible to the community of researchers working on ASD (https://arianna...
May 17, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28544902/extraction-and-applications-of-cyanotoxins-and-other-cyanobacterial-secondary-metabolites
#20
REVIEW
Fatima Haque, Sara Banayan, Josephine Yee, Yi Wai Chiang
The rapid proliferation of cyanobacteria in bodies of water has caused cyanobacterial blooms, which have become an increasing cause of concern, largely due to the presence of toxic secondary metabolites (or cyanotoxins). Cyanotoxins are the toxins produced by cyanobacteria that may be harmful to surrounding wildlife. They include hepatotoxins, neurotoxins and dermatotoxins, and are classified based on the organs they affect. There are also non-toxic secondary metabolites that include chelators and UV-absorbing compounds...
May 18, 2017: Chemosphere
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