Two new versions of the so-called Maker-Breaker Positional Games are defined by József Beck. In these variants Picker takes unselected pair of elements and Chooser keeps one of these elements and gives back the other to Picker. In the Picker-Chooser version Picker is Maker and Chooser is Breaker, while the roles are swapped in the Chooser-Picker version. It seems that both the Picker-Chooser an...

The repeatable wettability of the facile-to-fabricate porous copper surface shows superhydrophobicity in air and improved superhydrophobicity under oil. The resultant 3D copper foam can separate and capture oils from water with high separation efficiency, fast capture kinetics, fine mechanical resistance to water impact, and good recyclability.

This work investigates the influence of kaolin and dolomite on properties polyurethane foam. The selected fillers were pulverized sieved to obtained < 90 ?m that used as reinforcements in matrix a randomly dispersed mode. constituents mixed same ratio while introduced via one-shot system approach predetermined proportions 3–7 wt.%. was carried out identify optimum be utilized production rigi...

Lightweight foam sandwich structures have excellent energy absorption capacity, combined with good mechanical properties and low density. The main goal of this study is to test the application an innovative hybrid protective device in offshore wind turbine (OWT). results are useful for structure applications. Different lightweight materials (aluminum foam, agglomerated cork, polyurethane foam) ...

Porous materials with ligament sizes in the submicrometer to nanometer regime have a high potential for future applications such as catalysts, actuators, or radiation tolerant materials, which require properties like high strength-to-weight ratio, high surface-to-volume ratio, or large interface density as for radiation tolerance. The objective of this work was to manufacture ultra-fine porous ...

Objective: The objective of this study was to investigate the effects different wavelengths LED lighting on postharvest quality tomatoes (Solanum lycopersicum L. cv. Zahide) during breaker harvest stages..
 Material and Methods: Harvested tomato fruits were placed 500 g polystyrene foam dishes wrapped with stretch film. They then stored in 4±1ºC temperature 85-90% relative humidity for 42 ...