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Pilot study of sources and concentrations of size-resolved airborne particles in a neonatal intensive care unit

Related publications (49)

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Vertical ordering of rods under vertical vibration

Thomas Liebling, Lionel Pournin, Marco Ramaioli

Granular media composed of elongated particles rearrange and order vertically upon vertical vibration. We perform pseudo-two-dimensional discrete element model simulations and show that this phenomenon takes place also with no help from vertical walls. We ...

2007

Phases of granular segregation in a binary mixture

Pedro Miguel Nunes Pereira de Almeida Reis

We present results from an extensive experimental investigation into granular segregation of a shallow binary mixture in which particles are driven by frictional interactions with the surface of a vibrating horizontal tray. Three distinct phases of the mix ...

2006

The effects of calcium phosphate cement particles on osteoblast functions

Dominique Pioletti, Pascale Van Landuyt

Calcium phosphate cements (CPC) are increasingly used in the orthopedic field. This kind of cement has potential applications in bone defect replacements, osteosynthetic screw reinforcements or drug delivery. In vivo studies have demonstrated a good osteoi ...

2000

Inverse grading in granular flow

The current work concerns with the parametrical dependencies of inverse grading in granular flows from material properties of individual particles involved in the flow. The investigations were initiated and motivated by the search for an explanation of the ...

EPFL2000

A study of processes that govern the maintenance of aerosols in the marine boundary layer

Athanasios Nenes

We systematically evaluate the relative influence of sources and sinks of particles in the remote marine boundary layer (MBL) to elucidate the principal factors that govern MBL aerosol behavior. Processes considered include: (1) surface flux of dimethyl su ...

Elsevier Sci Ltd1999

Magnetization of small arrays of interacting single-domain particles

Dirk Grundler

We have prepared tailored small arrays of single-domain Ninanomagnets exhibiting an easy-axis perpendicular to the substrate surface. Using ballistic Hall micromagnetometry we probe the magnetization under different tilt angles. For an array of 13 nanomagn ...

American Institute of Physics1999

Description of a dust particle detection system and measurements of particulate contamination from shock, gate valve, and ion pump under ultrahigh vacuum conditions

Dust particle contamination is known to be responsible for reduced quality and yield in microelectronic processing. However it may also limit the operation of particle accelerators as a result of beam lifetime reduction or enhanced field emission in radio- ...

1998

Metal-metal coordination chemistry: free clusters of Group 12 elements with sodium

A systematic study of the mass spectra of particles formed in a supersonic nozzle expansion of Zn, Cd, and Hg vapors together with Na was performed. The particles discussed in this paper contain only 1 heavy atom and

1990

Photolytic production of hydrogen from water

Juan Kiwi

A catalytic dispersion of fine metal particles mediates the photodissociation of water into hyrogen gas. A protective agent adsorptive to said particles and selected from among homopolymers, copolymers, hydrocarbyl radicals and polysaccharides stabilizes t ...

(Engelhard Minerals and Chemicals Corp., USA).1981