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Articles 31 - 36 of 36
Full-Text Articles in Engineering
Perioperative Nurse Training In Cardiothoracic Surgical Robotics, M. A. Connor, P. J. Handley, Jeffrey A. Reinbolt
Perioperative Nurse Training In Cardiothoracic Surgical Robotics, M. A. Connor, P. J. Handley, Jeffrey A. Reinbolt
Jeffrey A. Reinbolt
The exponential growth of OR technology during the past 10 years has placed increased demands on perioperative nurses. Proficiency is required not only in patient care but also in the understanding, operating, and troubleshooting of video systems, computers, and cutting edge medical devices. The formation of a surgical team dedicated to robotically assisted cardiac surgery requires careful selection, education, and handson practice. This article details the six-week training process undertaken at Sarasota Memorial Hospital, Sarasota, Ha, which enabled staff members to deliver excellent patient care with a high degree of confidence in themselves and the robotic technology.
Numerical Simulation Of A Gas–Liquid Flow In A Fixed Bed, Ashok S. Sangani, Sangkyun Koo
Numerical Simulation Of A Gas–Liquid Flow In A Fixed Bed, Ashok S. Sangani, Sangkyun Koo
Ashok S. Sangani
A countercurrent gas–liquid flow through a fixed bed of spherical particles is examined numerically by solving the particle-scale equations governing the gas and liquid flows. The liquid is assumed to flow along the surface of the particles forming a thin film. The case of small gas flow rates is examined in detail first. In this limit the presence of the liquid film increases the gas pressure drop over its value for a dry bed by three mechanisms: The liquid film makes the apparent size of the particles larger, decreases the pore space for the gas flow, and, with its velocity …
Attenuation Of Sound In Concentrated Suspensions: Theory And Experiments, Ashok S. Sangani, Peter D. M. Spelt, Michael A. Norato, Margaret S. Greenwood, Lawrence L. Tavarides
Attenuation Of Sound In Concentrated Suspensions: Theory And Experiments, Ashok S. Sangani, Peter D. M. Spelt, Michael A. Norato, Margaret S. Greenwood, Lawrence L. Tavarides
Ashok S. Sangani
Ensemble-averaged equations are derived for small-amplitude acoustic wave propagation through non-dilute suspensions. The equations are closed by introducing effective properties of the suspension such as the compressibility, density, viscoelasticity, heat capacity, and conductivity. These effective properties are estimated as a function of frequency, particle volume fraction, and physical properties of the individual phases using a self-consistent, effective-medium approximation. The theory is shown to be in excellent agreement with various rigorous analytical results accounting for multiparticle interactions. The theory is also shown to agree well with the experimental data on concentrated suspensions of small polystyrene particles in water obtained by Allegra …
Measurements Of The Average Properties Of A Suspension Of Bubbles Rising In A Vertical Channel, Ashok S. Sangani, Roberto Zenit, Donald L. Koch
Measurements Of The Average Properties Of A Suspension Of Bubbles Rising In A Vertical Channel, Ashok S. Sangani, Roberto Zenit, Donald L. Koch
Ashok S. Sangani
Experiments were performed in a vertical channel to study the behaviour of a monodisperse bubble suspension for which the dual limit of large Reynolds number and small Weber number was satisfied. Measurements of the liquid-phase velocity fluctuations were obtained with a hot-wire anemometer. The gas volume fraction, bubble velocity, bubble velocity fluctuations and bubble collision rate were measured using a dual impedance probe. Digital image analysis was performed to quantify the small polydispersity of the bubbles as well as the bubble shape.A rapid decrease in bubble velocity with bubble concentration in very dilute suspensions is attributed to the effects of …
The Glass Bead Game, David D. Nolte
The Glass Bead Game, David D. Nolte
David D Nolte
Our lives are filled with images. Everyday we see signals, read signs, and learn symbols.We find our way with maps, look for news and bargains in newspapers, calculate ourbills and taxes. We turn printed music into wonderful sounds, often without consciouseffort. Icons fill our churches, synagogues and mosques, dot our computer screens, andare sprawled on billboards, on clothing and advertisement pages. Architecture and artconspire to fill our views with meaningful shapes and form. Pictures capture an instant intime, while movies and video entertain us with visual motion. We live in a visual world,full of information transmitted by light.
The Age Of Entanglement
David D Nolte
Quantum mechanics is a venerable field of study. The year 2000 marked the 100th anniversary of theoriginal quantum hypothesis proposed by Max Planck in November of 1900. Few current fields in physicsor engineering are as old as quantum mechanics. It predates relativity, both special and general. It predatesnuclear and particle physics. Quantum mechanics even predates universal acceptance of the molecularhypothesis, that is, that all matter is made up of individual molecules in thermal motion. It may be hard tobelieve, but this happened only after Einstein's paper on Brownian motion was published in his miracleyear 1905.