Engineering surfaces that promote rapid drop detachment1,2 is of importance to a wide range of applications including anti-icing3-5, dropwise condensation6, and self-cleaning7-9. Here we show how superhydrophobic surfaces patterned with lattices of submillimetre-scale posts decorated with nano-textures can generate a counter-intuitive bouncing regime: drops spread on impact and then leave the s...

We examined the structure, morphology, and orientation of catalyst nanoparticles used for seeding and growing multiwall carbon nanotubes (MWCNTs) by plasma enhanced chemical vapor deposition in CH4/H2 gas mixtures. Iron catalyst nanocrystals are converted to Fe3C in CH4/H2 plasmas and the MWCNTs grow from Fe3C nanocrystals. Initially faceted and equiaxed catalyst nanocrystals are distorted and ...

In this research, the heat transfer coefficient (HTC) and pressure drop of alternating cross-section flattened (ACF) tubes were investigated experimentally compared with same parameters a circular tube. Three different ACF fabricated from copper tubing an internal diameter 4.5 mm, thickness 1 length 400 mm. The twist angles 30, 45, 90°. experimental ranges covered mass flux 729–1,434 kg/m2s 12–...

The upper size limit of solar small-scale magnetic flux concentrations (“G-band bright points”, BP) is reconsidered from speckle-reconstructed images taken at the 1-m SST on La Palma. The size-histogram shows a sharp drop towards 250 km diameter, variation of the noise filter threshold diminishes that value due to segmentation of the elongated structures. A further artificial segmentation of st...

Two cell lines (ACCS and ACCY) were isolated from two individuals with adenoid cystic carcinoma (AdCC) using tissue culture techniques. Both cell lines have similar morphology, i.e., elongated and flattened cells with slender cytoplasmic processes. The two cell lines tend to form pseudocysts, which are a specific architectural feature of AdCC. Coexpression of cytokeratin and vimentin was found ...

We have carried out observations of the starless core L1544 in the CCS (JN = 32−21) line at 9 millimeters wavelength using the BIMA array. The maps show an elongated condensation, 0.15 × 0.045 pc in size, with stronger emission at the edges. The appearance is consistent with a flattened, ringlike structure viewed at high inclination to the line of sight. The CCS molecule is likely heavily deple...

Hairy adhesive systems of microscopic setae with triangular flattened tips have evolved convergently in spiders, insects and arboreal lizards. The ventral sides of the feet and tails in chameleons are also covered with setae. However, chameleon setae feature strongly elongated narrow spatulae or fibrous tips. The friction enhancing function of these microstructures has so far only been demonstr...

A 45-year-old Hispanic man presented with a 10-year history of unusual facial lesions that had spread gradually, becoming almost confluent in some areas. There was no family history of similar lesions. Physical examination revealed multiple asymptomatic, skin-colored to bluish papules and cystic nodules measuring 2 to 5 mm in diameter on the patient’s forehead and cheeks (Figure 1). Lancing pro...

A new genus and species of cimicoid true bug, Ecpaglocoris ditomeus Yamada & Yamamoto, gen. et sp. nov. , is described illustrated from mid-Cretaceous (Cenomanian–Albian) amber in the Kachin State northern Myanmar (Burma). This fossil reminiscent members Anthocoridae by strongly flattened elongated body, four-segmented labium, distinct costal fracture presence fossula spongiosa on fore tibi...