A double-wall-hourglass-shaped metallocavitand bearing an electron-deficient cavity was self-assembled, which exhibited an unusual selectivity to substituted benzene derivatives of different electron density during co-crystallizations.

In this study evaluated the effect of different adhesive systems and resin composites on microtensile bond strength repairs using a bulk-fill composite. Ninety specimens were prepared half-hourglass mold composite Filtek Bulk Fill silicone matrix. Specimens randomly distributed in 9 experimental groups (n=10) according to [Universal Single Bond (SBU), Scotchbond Multipurpose Adhesive (SBMP), 2 ...

This work experimentally investigates the effects of an interstitial fluid on the discharge of granular material within an hourglass. The experiments include observations of the flow patterns, measurements of the discharge rates, and pressure variations for a range of different fluid viscosities, particle densities and diameters, and hourglass geometries. The results are classified into three r...

Pervasive environments with their ubiquitous multimedia devices such as video-enabled cell-phones, laptops, PC tablets, digital cameras, HDTV plasma displays are becoming integral part of our workplaces and homes. Furthermore, these digital multimedia devices make it easier and easier to create and view volumes of content that can be stored throughout the Internet. The big challenge is to organ...

The unconventional Weyl point with nonlinear dispersion features higher topological charge $|\mathcal{C}|>1$ and multiple topologically protected Fermi arc states at its boundary. As a novel state, it has been attracting widespread attention. However, the $|\mathcal{C}|=3$ not yet reported in realistic materials, even though theoretically proposed for more than decade. In this work, based on...

The discovery is reported of the second strongest source ofmmand submmwavelengthCO line emission, towards M8, the Lagoon Nebula in Sagittarius. The∼31M molecular core has dimensions∼0.2×0.3 pc and is centred on theO7V star Herschel 36 (H 36), near the Hourglass Nebula in the core of M8. Emission from the CO line wings extends to the north and south of the Hourglass, although a lack of near-IR H...