نتایج جستجو برای: airborne

تعداد نتایج: 22242  

2004
T. Sasagawa

The recent advances of GPS/IMU have made it possible to perform the multisensor, multi-resolution and multi-spectral data fusion utilizing GIS technique. In the present study we utilized the Airborne Digital Sensor (ADS40) image and Digital Surface Model (DSM) by pixel matching techniques and studied the data fusion capability with LIDAR data from Airborne Laser Scanner (ALS40) and filtered Dig...

Journal: :American journal of infection control 2010
Gregory W Stocks Sean D Self Brandon Thompson Xavier A Adame Daniel P O'Connor

BACKGROUND Prevention of postsurgical infection is preferable to treatment. Prevention requires identification and control of the potential sources of microbial contamination. This study investigated whether the density of airborne particulates can predict the density of viable airborne bacteria at the surgery site. METHODS A standard particle analyzer was used to measure the number and diame...

Journal: :Cell 2014
Martin Linster Sander van Boheemen Miranda de Graaf Eefje J.A. Schrauwen Pascal Lexmond Benjamin Mänz Theo M. Bestebroer Jan Baumann Debby van Riel Guus F. Rimmelzwaan Albert D.M.E. Osterhaus Mikhail Matrosovich Ron A.M. Fouchier Sander Herfst

Recently, A/H5N1 influenza viruses were shown to acquire airborne transmissibility between ferrets upon targeted mutagenesis and virus passage. The critical genetic changes in airborne A/Indonesia/5/05 were not yet identified. Here, five substitutions proved to be sufficient to determine this airborne transmission phenotype. Substitutions in PB1 and PB2 collectively caused enhanced transcriptio...

Journal: :Burns : journal of the International Society for Burn Injuries 2015
Sarah E Bache Michelle Maclean George Gettinby John G Anderson Scott J MacGregor Ian Taggart

BACKGROUND It is acknowledged that activities such as dressing changes and bed sheet changes are high-risk events; creating surges in levels of airborne bacteria. Burns patients are particularly high dispersers of pathogens; due to their large, often contaminated, wound areas. Prevention of nosocomial cross-contamination is therefore one of the major challenges faced by the burns team. In order...

Journal: :Journal of Imaging 2018

Journal: :Contact dermatitis 2007
Raquel Santos An Goossens

Reports on airborne dermatoses are mainly published in the context of occupational settings. Hence, in recent years, dermatologists and also occupational physicians have become increasingly aware of the airborne source of contact dermatitis, resulting mainly from exposure to irritants or allergens. However, their occurrence is still underestimated, because reports often omit the term 'airborne'...

2018
Ning Li Shilin Niu Zhengwei Guo Yabo Liu Jiaqi Chen

For accurate motion compensation (MOCO) in airborne synthetic aperture radar (SAR) imaging, a high-precision inertial navigation system (INS) is required. However, an INS is not always precise enough or is sometimes not even included in airborne SAR systems. In this paper, a new, raw, data-based range-invariant motion compensation approach, which can effectively extract the displacements in the...

2013
Shibu Yooseph Cynthia Andrews-Pfannkoch Aaron Tenney Jeff McQuaid Shannon Williamson Mathangi Thiagarajan Daniel Brami Lisa Zeigler-Allen Jeff Hoffman Johannes B. Goll Douglas Fadrosh John Glass Mark D. Adams Robert Friedman J. Craig Venter

Understanding the microbial content of the air has important scientific, health, and economic implications. While studies have primarily characterized the taxonomic content of air samples by sequencing the 16S or 18S ribosomal RNA gene, direct analysis of the genomic content of airborne microorganisms has not been possible due to the extremely low density of biological material in airborne envi...

Journal: :The Journal of arthroplasty 2011
Gregory W Stocks Daniel P O'Connor Sean D Self Geoff A Marcek Brandon L Thompson

This study evaluated the use of a system that delivers a small field of local, directed air from a high-efficiency particulate air (HEPA) filter to reduce airborne particulate and airborne bacteria in the surgical field during total hip arthroplasty. Thirty-six patients were randomized into 3 groups: with directed air flow, with the directed air flow system present but turned off, and control. ...

Journal: :Journal of environmental management 2015
J Oteros H García-Mozo P Alcázar J Belmonte D Bermejo M Boi P Cariñanos C Díaz de la Guardia D Fernández-González F González-Minero A M Gutiérrez-Bustillo S Moreno-Grau R Pérez-Badía F J Rodríguez-Rajo L Ruíz-Valenzuela J Suárez-Pérez M M Trigo E Domínguez-Vilches C Galán

Air quality is a major issue for humans owing to the fact that the content of particles in the atmosphere has multiple implications for life quality, ecosystem dynamics and environment. Scientists are therefore particularly interested in discovering the origin of airborne particles. A new method has been developed to model the relationship between the emission surface and the total amount of ai...

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