We show low-cost fabrication and characterization of borosilicate glass nanopores for single molecule sensing. Nanopores with diameters of ~100 nm were fabricated in borosilicate glass capillaries using laser assisted glass puller. We further achieve controlled reduction and nanometer-size control in pore diameter by sculpting them under constant electron beam exposure. We successfully fabricat...

The origin of the high content wet gases in coalbed seams is very important geologically, especially Enhong syncline China. present study focuses on role material that generates hydrocarbons. effect pore structure generation has not been thoroughly examined. paper characterizes coal “wet gas area” and “dry area”. structures two areas are shown to have different features, which affect distributi...

This work explored the formation of mesoporous silicas pellets using a range bentonite and colloidal silica (LUDOX) fractions, aiming to optimise binder composition that minimises any deteriorating effects on adsorption performance, while providing adequate mechanical integrity. Thermogravimetric analysis, scanning electron microscopy, dynamic analysis were used structurally characterise pellet...

The translocation process of a globular protein (ubiquitin) across a cylindrical nanopore is studied via molecular dynamics simulations. The ubiquitin is described by a native-centric model on a Calpha carbon backbone to investigate the influence of protein-like structural properties on the translocation mechanism. A thermodynamical and kinetic characterization of the process is obtained by stu...

Due to high directionality and small wavelengths, 60 GHz links are highly vulnerable to human blockage. To overcome blockage, 60 GHz radios can use a phased-array antenna to search for and switch to unblocked beam directions. However, these techniques are reactive, and only trigger after the blockage has occurred, and hence, they take time to recover the link. In this paper, we propose BeamSpy,...

Abstract The (early) hydration mechanisms of two different binder systems used for shotcrete were investigated: the so far almost unexplored low sulfate (spray binder), in field dry-mix shotcrete; and ordinary Portland cement, accelerated by aluminum sulfate, widely wet-mix shotcrete. basis fast setting spray is rapid dissolution C 3 A subsequent formation flaky CO -AFm phases. Thereby induced ...

To characterize the coal measure shale pore structure of Xiashihezi Formation in Sunan Syncline block, a series experiments were conducted. Results show that main components shales are clay minerals and quartz, organic matter, fluid escaping, interlayer, intercrystalline interparticle pores well-developed. The specific surface area (SSA) is concentrated with size <50 nm significantly hig...

The hydration mechanism between the leaching agent and ore surface during process of ionic rare earth is complicated, inter-particle bridge cementation prone to fracture due existence multiple forces dispersion ion adsorption exchange, resulting in migration rearrangement microfine particles, precipitation at pore throat, producing blockage phenomenon affecting efficiency earths. In order revea...

In this article 4 we introduce a blockage-detection method, which manages to detect a large set of blockage positions in pawn endgames, with practically no additional overhead. By examining different elements of the pawn structure, the method checks whether the Pawns form a blockage which prevents the King from penetrating into the opponent’s camp. It then checks several criteria to find out wh...