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https://www.readbyqxmd.com/read/28524090/wind-turbine-diagnosis-under-variable-speed-conditions-using-a-single-sensor-based-on-the-synchrosqueezing-transform-method
#1
Yanjie Guo, Xuefeng Chen, Shibin Wang, Ruobin Sun, Zhibin Zhao
The gearbox is one of the key components in wind turbines. Gearbox fault signals are usually nonstationary and highly contaminated with noise. The presence of amplitude-modulated and frequency-modulated (AM-FM) characteristics compound the difficulty of precise fault diagnosis of wind turbines, therefore, it is crucial to develop an effective fault diagnosis method for such equipment. This paper presents an improved diagnosis method for wind turbines via the combination of synchrosqueezing transform and local mean decomposition...
May 18, 2017: Sensors
https://www.readbyqxmd.com/read/28520848/pattern-fusion-analysis-by-adaptive-alignment-of-multiple-heterogeneous-omics-data
#2
Qianqian Shi, Chuanchao Zhang, Minrui Peng, Xiangtian Yu, Tao Zeng, Juan Liu, Luonan Chen
Motivation: Integrating different omics profiles is a challenging task, which provides a comprehensive way to understand complex diseases in a multi-view manner. One key for such an integration is to extract intrinsic patterns in concordance with data structures, so as to discover consistent information across various data types even with noise pollution. Thus, we proposed a novel framework called "pattern fusion analysis" (PFA), which performs automated information alignment and bias correction, to fuse local sample-patterns (e...
May 18, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28499963/neither-artificial-light-at-night-anthropogenic-noise-nor-distance-from-roads-are-associated-with-oxidative-status-of-nestlings-in-an-urban-population-of-songbirds
#3
Giulia Casasole, Thomas Raap, David Costantini, Hamada AbdElgawad, Han Asard, Rianne Pinxten, Marcel Eens
Increasing urbanization is responsible for road-related pollutants and causes an unprecedented increase in light and noise pollution, with potential detrimental effects for individual animals, communities and ecosystems. These stressors rarely act in isolation but studies dissecting the effects of these multiple stressors are lacking. Moreover, studies on urban stressors have mainly focused on adults, while exposure in early-life may be detrimental but is largely ignored. To fill this important knowledge gap, we studied if artificial light at night, anthropogenic noise and road-related pollution (using distance from roads as a proxy) explain variation in oxidative status in great tit nestlings (Parus major) in an urban population...
May 10, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28480868/-working-conditions-and-state-of-health-of-tbilisi-subway-employees
#4
N Khunashvili, Mar Tsimakuridze, L Bakradze, N Khachapuridze, Maya Tsimakuridze
For the purpose of preventive events complex hygienic, clinical-functional, laboratory and biostatic researches are implemented on the basis of Tbilisi Subway. Conditions of work are characterized by complex of unfavorable factors of the working environment and the labor process. Working environment is characterized by combination of unfavorable state of physical factors and air pollution with dust and toxic substances. The levels of noise and vibration refer to the 3.4 class of harmfulness. The content of dust and toxic substances corresponds to 3...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28479997/anthropogenic-noise-changes-arthropod-abundances
#5
Jessie P Bunkley, Christopher J W McClure, Akito Y Kawahara, Clinton D Francis, Jesse R Barber
Anthropogenic noise is a widespread and growing form of sensory pollution associated with the expansion of human infrastructure. One specific source of constant and intense noise is that produced by compressors used for the extraction and transportation of natural gas. Terrestrial arthropods play a central role in many ecosystems, and given that numerous species rely upon airborne sounds and substrate-borne vibrations in their life histories, we predicted that increased background sound levels or the presence of compressor noise would influence their distributions...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28479566/perspectives-about-personalization-for-mhealth-solutions-against-noise-pollution
#6
Sara Kepplinger, Judith Liebetrau, Tobias Clauss, Peter Pharow
Noise harms the environmental quality and can have negative effect on health and wellbeing. Providing silent areas and periods of rest is one way to improve the perceived environmental quality. However, realization is not easy in the day to day life. The usage of mHealth solutions which can provide information about the sound of a certain area and the respective effect on humans could be supportive. As the perception of sound is highly subjective, the prediction of the perceived acoustic environments is very difficult...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28473587/noise-pollution-is-pervasive-in-u-s-protected-areas
#7
Rachel T Buxton, Megan F McKenna, Daniel Mennitt, Kurt Fristrup, Kevin Crooks, Lisa Angeloni, George Wittemyer
Anthropogenic noise threatens ecological systems, including the cultural and biodiversity resources in protected areas. Using continental-scale sound models, we found that anthropogenic noise doubled background sound levels in 63% of U.S. protected area units and caused a 10-fold or greater increase in 21%, surpassing levels known to interfere with human visitor experience and disrupt wildlife behavior, fitness, and community composition. Elevated noise was also found in critical habitats of endangered species, with 14% experiencing a 10-fold increase in sound levels...
May 5, 2017: Science
https://www.readbyqxmd.com/read/28464684/perceptions-and-effects-of-the-acoustic-environment-in-quiet-residential-areas
#8
Guillermo Rey Gozalo, Juan Miguel Barrigón Morillas
Many cities have historical areas clearly distinguished from the rest because of the architecture, urban planning, and functionality. In many cases, these aspects give one the possibility of finding a characteristic acoustic environment and also developing quiet areas. Through an examination of sound levels and surveys, the perception of residents and passers-by concerning the acoustic environment of the old town of Cáceres and its relation with the characteristics of the urban environment were analysed. In addition, the perception and the effects of noise pollution of low intensity were studied...
April 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28443933/high-performance-schottky-heterojunction-photodetector-with-directly-grown-graphene-nanowalls-as-electrodes
#9
Jun Shen, Xiangzhi Liu, Xuefen Song, Xinming Li, Jun Wang, Quan Zhou, Shi Luo, Wenlin Feng, Xingzhan Wei, Shirong Lu, Shuanglong Feng, Chunlei Du, Yuefeng Wang, Haofei Shi, Dapeng Wei
Schottky heterojunctions based on graphene-silicon structures are promising for high-performance photodetectors. However, existing fabrication processes adopt transferred graphene as electrodes, limiting process compatibility and generating pollution because of the metal catalyst. In this report, photodetectors are fabricated using directly grown graphene nanowalls (GNWs) as electrodes. Due to the metal-free growth process, GNWs-Si heterojunctions with an ultralow measured current noise of 3.1 fA Hz(-1/2) are obtained, and the as-prepared photodetectors demonstrate specific detectivities of 5...
May 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/28440286/size-and-shape-variations-of-the-bony-components-of-sperm-whale-cochleae
#10
Joseph G Schnitzler, Bruno Frédérich, Sven Früchtnicht, Tobias Schaffeld, Johannes Baltzer, Andreas Ruser, Ursula Siebert
Several mass strandings of sperm whales occurred in the North Sea during January and February 2016. Twelve animals were necropsied and sampled around 48 h after their discovery on German coasts of Schleswig Holstein. The present study aims to explore the morphological variation of the primary sensory organ of sperm whales, the left and right auditory system, using high-resolution computerised tomography imaging. We performed a quantitative analysis of size and shape of cochleae using landmark-based geometric morphometrics to reveal inter-individual anatomical variations...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28436648/statistical-variable-selection-an-alternative-prioritization-strategy-during-the-nontarget-analysis-of-lc-hr-ms-data
#11
Saer Samanipour, Malcolm J Reid, Kevin V Thomas
Liquid chromatography coupled to high resolution mass spectrometry (LC-HR-MS) has been one of the main analytical tools for the analysis of small polar organic pollutants in the environment. LC-HR-MS typically produces a large amount of data for a single chromatogram. The analyst is therefore required to perform prioritization prior to nontarget structural elucidation. In the present study, we have combined the F-ratio statistical variable selection and the apex detection algorithms in order to perform prioritization in data sets produced via LC-HR-MS...
May 5, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28432993/chemical-biological-and-dna-markers-for-tracing-slaughterhouse-effluent
#12
P J Harvey, M P Taylor, H K Handley, S Foster, M R Gillings, A J Asher
Agricultural practices, if not managed correctly, can have a negative impact on receiving environments via waste disposal and discharge. In this study, a chicken slaughter facility on the rural outskirts of Sydney, Australia, has been identified as a possible source of persistent effluent discharge into a peri-urban catchment. Questions surrounding the facility's environmental management practices go back more than four decades. Despite there having never been a definitive determination of the facility's impact on local stream water quality, the New South Wales Environment Protection Authority (NSW EPA) has implemented numerous pollution reduction requirements to manage noise and water pollution at the slaughter facility...
April 26, 2017: Environmental Research
https://www.readbyqxmd.com/read/28420222/how-sensors-might-help-define-the-external-exposome
#13
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/28417138/long-term-exposure-to-ambient-air-pollution-and-traffic-noise-and-incident-hypertension-in-seven-cohorts-of-the-european-study-of-cohorts-for-air-pollution-effects-escape
#14
Kateryna B Fuks, Gudrun Weinmayr, Xavier Basagaña, Olena Gruzieva, Regina Hampel, Bente Oftedal, Mette Sørensen, Kathrin Wolf, Geir Aamodt, Gunn Marit Aasvang, Inmaculada Aguilera, Thomas Becker, Rob Beelen, Bert Brunekreef, Barbara Caracciolo, Josef Cyrys, Roberto Elosua, Kirsten Thorup Eriksen, Maria Foraster, Laura Fratiglioni, Agneta Hilding, Danny Houthuijs, Michal Korek, Nino Künzli, Jaume Marrugat, Mark Nieuwenhuijsen, Claes-Göran Östenson, Johanna Penell, Göran Pershagen, Ole Raaschou-Nielsen, Wim J R Swart, Annette Peters, Barbara Hoffmann
Aims: We investigated whether traffic-related air pollution and noise are associated with incident hypertension in European cohorts. Methods and results: We included seven cohorts of the European study of cohorts for air pollution effects (ESCAPE). We modelled concentrations of particulate matter with aerodynamic diameter ≤2.5 µm (PM2.5), ≤10 µm (PM10), >2.5, and ≤10 µm (PMcoarse), soot (PM2.5 absorbance), and nitrogen oxides at the addresses of participants with land use regression...
April 1, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28411895/the-environment-and-blood-pressure
#15
REVIEW
Robert D Brook
A host of environmental factors can significantly increase arterial blood pressure (BP) including cold temperature, high altitude, loud noises, and ambient air pollutants. Although brief exposures acutely elevate BP, over the long term, chronic exposures may be capable of promoting the development of sustained hypertension. Given their omnipresent nature, environmental factors may play a role in worsening BP control and heightening overall cardiovascular risk at the global public health level.
May 2017: Cardiology Clinics
https://www.readbyqxmd.com/read/28411496/exposure-to-environmental-noise-and-risk-for-male-infertility-a%C3%A2-2population-based-cohort-study
#16
Kyoung-Bok Min, Jin-Young Min
BACKGROUND: Noise is associated with poor reproductive health. A number of animal studies have suggested the possible effects of exposure to high noise levels on fertility; to date, a little such research has been performed on humans. OBJECTIVES: We examined an association between daytime and nocturnal noise exposures over four years (2002-2005) and subsequent male infertility. METHODS: We used the National Health Insurance Service-National Sample Cohort (2002-2013), a population-wide health insurance claims dataset...
April 12, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28410120/snp_tata_comparator-genomewide-landmarks-for-preventive-personalized-medicine
#17
Mikhail Ponomarenko, Dmitry Rasskazov, Irina Chadaeva, Ekaterina Sharypova, Petr Ponomarenko, Olga Arkova, Elena Kashina, Nikita Ivanisenko, Dmitry Zhechev, Ludmila Savinkova, Nikolay Kolchanov
Year after year, conditions, quality, and duration of human lives have been improving due to the progress of science, technology, education, and medicine, which however has a downside. Owing to improvement in children's nutrition, developmental acceleration occurs that imbalances a child's system. Because of virtual worlds of the Internet, social experience of teenagers expands and clashes with puberty of adolescents. Due to the comfort of cities, urbanization emerges and causes stress to adults because of artificial light, noise, pollution, violations of personal space, and family disruption...
June 1, 2017: Frontiers in Bioscience (Scholar Edition)
https://www.readbyqxmd.com/read/28404823/noise-affects-resource-assessment-in-an-invertebrate
#18
Erin P Walsh, Gareth Arnott, Hansjoerg P Kunc
Anthropogenic noise is a global pollutant, affecting animals across taxa. However, how noise pollution affects resource acquisition is unknown. Hermit crabs (Pagurus bernhardus) engage in detailed assessment and decision-making when selecting a critical resource, their shell; this is crucial as individuals in poor shells suffer lower reproductive success and higher mortality. We experimentally exposed hermit crabs to anthropogenic noise during shell selection. When exposed to noise, crabs approached the shell faster, spent less time investigating it, and entered it faster...
April 2017: Biology Letters
https://www.readbyqxmd.com/read/28389127/participatory-quantitative-health-impact-assessment-of-urban-and-transport-planning-in-cities-a-review-and-research-needs
#19
REVIEW
Mark J Nieuwenhuijsen, Haneen Khreis, Ersilia Verlinghieri, Natalie Mueller, David Rojas-Rueda
INTRODUCTION: Urban and transport planning have large impacts on public health, but these are generally not explicitly considered and/or quantified, partly because there are no comprehensive models, methods and tools readily available. Air pollution, noise, temperature, green space, motor vehicle crashes and physical activity are important pathways linking urban and transport planning and public health. For policy decision-making, it is important to understand and be able to quantify the full-chain from source through pathways to health effects and impacts to substantiate and effectively target actions...
June 2017: Environment International
https://www.readbyqxmd.com/read/28382479/tuned-in-plant-roots-use-sound-to-locate-water
#20
Monica Gagliano, Mavra Grimonprez, Martial Depczynski, Michael Renton
Because water is essential to life, organisms have evolved a wide range of strategies to cope with water limitations, including actively searching for their preferred moisture levels to avoid dehydration. Plants use moisture gradients to direct their roots through the soil once a water source is detected, but how they first detect the source is unknown. We used the model plant Pisum sativum to investigate the mechanism by which roots sense and locate water. We found that roots were able to locate a water source by sensing the vibrations generated by water moving inside pipes, even in the absence of substrate moisture...
May 2017: Oecologia
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