OBJECTIVE To determine the influence of nebulizer types and nebulization modes on bronchodilator delivery in a mechanically ventilated pediatric lung model. DESIGN In vitro, laboratory study. SETTING Research laboratory of a university hospital. INTERVENTIONS Using albuterol as a marker, three nebulizer types (jet nebulizer, ultrasonic nebulizer, and vibrating-mesh nebulizer) were tested ...

One of the principal objectives of vibration isolation technology is to isolate sensitive equipment from a vibrating structure or to isolate the structure from an uncertain exogenous disturbance source. In this paper, a dynamic observer-based active isolator is proposed that guarantees closed-loop asymptotic stability and disturbance decoupling between the vibrating structure and isolated struc...

A droplet bouncing on the surface of a vertically vibrating liquid bath can walk horizontally, guided by waves it generates each impact. This results in self-propelled classical particle-wave entity. By using one-dimensional theoretical pilot-wave model with generalized wave form, we investigate dynamics this We employ different spatial forms to understand role played both oscillations and deca...

To the Editor: In the recent paper by El Taoum and associates,1 an in vitro comparison of aerosol dose delivery using jet and vibrating mesh nebulizers with a variety of nasal interface devices in pediatric patient models was presented. The results of this study demonstrated that the jet nebulizer was more efficient than the vibrating mesh nebulizer across all of the nasal interface devices tes...

Superparamagnetic iron oxide nanoparticles were synthesized by injecting ferrocene vapor and oxygen into an argon/helium DC thermal plasma. Size distributions of particles in the reactor exhaust were measured online using an aerosol extraction probe interfaced to a scanning mobility particle sizer, and particles were collected on transmission electron microscopy (TEM) grids and glass fiber filt...

Canul-Chay et al. [1] have conducted the segregation experiment of binary granular mixtures in a bed and subjected the bed to vibration. They report that the reverse Brazil-Nut phenomenon (RBNP) was never observed in their experiments and thus conclude that such does not exist. However, we have clearly demonstrated in [2] by Molecular Dynamics simulations that the reverse Brazil-Nut problem not...

We consider superposition states of various numbers of eigenstates in order to study vibrating quantum billiards semiquantally. We discuss the relationship between Galërkin methods, inertial manifolds, and partial differential equations such as nonlinear Schrödinger equations and Schrödinger equations with time-dependent boundary conditions. We then use a Galërkin approach to study vibrating qu...