Aligned liquid crystalline nanowires within ordered porous alumina templates show a pronounced texture on a macroscopic scale. We have investigated the influence of the geometric confinement and the nature of the pore walls on the mesophase formation by means of X-ray diffraction. The apparent texture is the result of a complex interplay of the pore geometry, interfacial phenomena, and the ther...

Macropores and water flow in soils and substrates are complex and are related to topics like preferential flow, nonequilibrium flow, and dual-continuum. Hence, the quantification of the number of macropores and the determination of their geometry are expected to provide a better understanding on the effects of pores on the soil's physical and hydraulic properties. This exploratory study aimed a...

Zeolites are microporous crystalline materials with highly regular framework structures consisting of molecularsized pores and channels. The characteristic framework type of a zeolite is conventionally defined by combining information on its coordination sequences, vertex symbols, tiling, and transitivity information. Here we present a novel knowledge-based approach for zeolite framework type c...

Confinement of water by pore geometry to a one-dimensional file of molecules interacting with the pore alters the diffusion coefficient D(W). Here we report an exponential dependence of D(W) on the number of water positions in the pore. The result is based on measurements of single channel water permeabilities of structurally similar peptidic nanopores of different length. The inconsistency wit...

We present 3D skin containing information of 3D details of high resolution facial mesh. Our 3D skin bank is derived from several scanned faces with resolutions up to several million triangles, where even the pores are clearly visible. We illustrate how to raise the resolution of the geometry of any given low quality face by making use of 3D skin, where the resulted model’s final resolution is h...

the fuel cells are distinguished as generating of green allocable energy and are electrochemical devices of low environmental impact. porous nanocrystalline strontium-doped lanthanum manganite la0.8sr0.2mno3 (lsm) cathode materials were prepared by mechanochemical route in various grinding times. carbon black was employed to produce pores. the formation of lsm single phase was studied by x-ray ...

agal2o3 nanocomposite were synthesized by solution combustion technique using ammonium carbonate as a new fuel under simultaneous combustion of alumina and silver particles condition. samples prepared with different amount of silver, were characterized by xrd, bet, sem and optical absorption measurements. xrd analysis was used to determine the change in phase and size of the synthesized nanopar...

Porous structures exhibiting randomly sized and distributed pores are required in biomedical applications (producing implants), materials science (developing cermet-based with desired properties), engineering (objects having controlled mass energy transfer smart agriculture (devices for soilless cultivation). In most cases, a scaffold-based method is used to design porous structures. This appro...

Fatigue strength is largely affected by the influence of discontinuities: geometric notches like holes and corners in components, surface (roughness), pores inclusions material. Therefore fatigue structures materials a local problem calculations are best carried out using approaches such as stress concept, strain concept or fracture mechanical concepts. In this investigation, discontinuities on...