Electrochemistry, although an ancient field of knowledge, has become paramount importance in the synthesis materials at nanoscale, with great interest not only for fundamental research but also practical applications. One promising fields which electrochemistry meets nanoscience and nanotechnology is micro/nanoscale motors. Micro/nano motors, are devices able to perform complex tasks commonly m...

Mesophase spheres were prepared through homogeneous and heterogeneous nucleation from two coal tar pitches with some and nearly without quinoline insolubles. The pitches suffered thermal condensation in a stainless steel reactor at 440 and 410 for 1 or 7h, respectively. SEM was introduced as a useful tool to detect the structures of the two kinds of mesophase spheres. As a result of the paper, ...

This paper presents the growth and characterization of three-dimensional structures using metal-organic (or organometallic) chemical precursors like M(CH3)3, where M is a metal. Their morphology depends principally on growth temperature and conditions at the surface of the substrate. These 3D structures can be separated into two classes: i) one with (Ga, Al, In) metallic alloys shaped as sphere...

DNA microspheres formed by self-assembly of DNA three-way junctions with self-complementary sticky-ends undergo an unexpected dynamic transformation from filled spheres into hollow capsules upon addition of cationic surfactants such as cetyltrimethylammonium bromide.

focuses mostly on democracy (Arato 1981; Paxton 2002; Putnam 1993; Wuthnow 1991). This analysis investigates instead the relationship between associationism and authoritarianism. I explore how the strength of the associational sphere influenced the degree of regime hegemony in two cases of interwar European authoritarianism: the Italian fascist regime and the Spanish dictatorship of Miguel Prim...

Recently, Nevo introduced the notion of strongly edge decomposable spheres. In this paper, we characterize the algebraic shifted complex of those spheres. Algebraically, this result yields the characterization of the generic initial ideal of the Stanley–Reisner ideal of Gorenstein* complexes having the strong Lefschetz property in characteristic 0.

Porous, bioactive microspheres have always been a dream material to biomedical scientists for bone regeneration and drug delivery applications due their interconnectivity, unique pore geometry, encapsulation ability porosity spanning macroscopic, microscopic nanoscopic length scales. Extensive efforts made produce such materials synthetically at great cost of money, time labor. Herein, naturall...

In the seed processing industry, rotary batch seed coaters are widely used for providing a protective coating layer (consisting of various ingredients including fertilisers and crop protection chemicals) on the seeds. Seed motion and mixing are important in ensuring uniform coating. In the batch seed coater, the base of a cylindrical vessel rotates, whilst the cylindrical wall is stationary and...

This paper describes the phase separation of millimetre-scale spheres based on electrostatic charge. Initially, polymeric (Teflon, T; Nylon-6,6, N) and metallic (gold-coated Nylon-6,6, Au(N)) spheres are uniformly mixed in a two-dimensional (2D) monolayer on a gold-coated plate. Oscillating the plate vertically caused the spheres to charge by contact electrification (tribocharging). Positively ...