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We report on experiments of droplet evaporation on a structured superhydrophobic surface that displays very high contact angle (CA ∼ 160 deg), and negligible contact angle hysteresis (<1 deg). The droplet evaporation is observed to occur in a constant-contact-angle mode, with contact radius shrinking for almost the entire duration of evaporation. Experiments conducted on Teflon-coated smooth su...

Article history: Received 5 December 2013 In final form 24 January 2014 Available online 1 February 2014 Slater’s covalent radii agree nicely with experiment when the effective principal quantum number and the screening constant for the outermost electron are taken from fits of the hydrogen-like energy level expression to ionization energies in isoelectronic series. This establishes a simple co...

We present BeppoSAX results of a spatially resolved spectral analysis of A3571, a relaxed nearby cluster of galaxies. In the central 2 (130 h 50 kpc) radius the metal abundance is 0.49 ± 0.08 solar and the absorption (1.13±0.28)×10 atom cm, whereas elsewhere within an 8 (520 h 50 kpc) radius the abundance is 0.32±0.05 solar and the absorption consistent with the galactic value of 4.4× 10 atom c...

We find a Classical explanation on the origin of the Cosmological ”constant” term, as a rotating feature of the Universe. We give a picture on ”creation” of the Universe. By analogy with the original Brans-Dicke relation GM cR ∼ 1 , several other similar relations were obtained in a previous paper (Berman, 2007d), which we now extend, by relating the angular momentum L , absolute temperature T ...

BACKGROUND AND PURPOSE New implant designs have incorporated a single radius instead of a multiple radius to the femoral component in order to improve the mechanical function after TKA. We investigated the amount of quadriceps force required to extend the knee during an isokinetic extension cycle of different total knee designs, focusing on the radius of the femoral component (single vs. multip...

Decoupling capacitors on packages and printed circuits boards are often essential to reduce voltage fluctuations and maintain power and signal integrity. This paper presents a measure for the evaluation of effectiveness of decoupling capacitors placed on package or board structures.

In theories where a scalar field couples nonminimally to gravity, the effective gravitational “constant” becomes dependent on the value of the scalar field. This note first gives a brief review on how the cosmological evolution provides a dynamical stabilization for the gravitational “constant” as the system relaxes towards general relativity in matter dominated and potential dominated regimes ...