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Back in November I was involved in the kick-off of a disclosure training program at a large Midwestern hospital. Continue reading January 4, 2012 Doug Wojcieszak, Founder Contact phone/e-mail address: 618-559-8168; [email protected] TEACHES DOCS TO SAY “SORRY” Below is a great article that came out right before Christmas about PLICO – Physicians Liability Insurance Company of Oklahoma – and their …The present study demonstrates the importance of actual agglomerated particle size in the nanofluid and its effect on the fluid properties.The current work deals with 5 to 100 nm nanoparticles dispersed in fluids that resulted in 200 to 800 nm agglomerates.

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Wet scanning electron microscopy method is used to visualize agglomerated particles in the dispersed state and to confirm particle size measurements by DLS.

Our results show that a combination of base fluid chemistry and nanoparticle type is very important to create stable nanofluids.

Several nanofluids resulted in stable state without any stabilizers, but in the long term had agglomerations of 250 % over a 2 month period.

The effects of agglomeration on the thermal and rheological properties are presented for several types of nanoparticle and base fluid chemistries.

Despite using nanodiamond particles with high thermal conductivity and a very sensitive laser flash thermal conductivity measurement technique, no anomalous increases of thermal conductivity was measured.

The thermal conductivity increases of nanofluid with the particle concentration are as those predicted by Maxwell and Bruggeman models.The level of agglomeration of nanoparticles hardly influenced the thermal conductivity of the nanofluid.The viscosity of nanofluids increased strongly as the concentration of particle is increased; it displays shear thinning and is a strong function of the level of agglomeration.Immer wieder finden sich in Filmen und Fernsehserien Szenen, die für den Physikunterricht relevant sein können. Gelegentlich sind aber physikalische Themen selbst Gegenstand von Filmen oder Serien. die Frage gestellt werden, ob gezeigte Stunts unter physikalischen Bedingungen überhaupt möglich sind.Wir stellen euch hier geeignete Beispiele für den Einsatz im Unterricht vor.

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