The micropore-throat structure is a controlling factor on the capacity of storage and seepage for tight sandstone reservoirs. Therefore, quantitatively analyzing pore-throat crucial realizing oil accumulated in To study micropore-throat, battery experiments such as casting thin sections, scanning electron microscopy, high-pressure mercury injection, petrophysical characteristics reservoirs were...

The scanning electron microscope (SEM) is one of the most versatile instruments available for the examination and analysis of the microstructure morphology and chemical composition characterizations. It is necessary to know the basic principles of light optics in order to understand the fundamentals of electron microscopy. The unaided eye can discriminate objects subtending about 1/60 ̊ visual a...

Tannery hair wastes are becoming a challenge for tanners regarding environmental pollution control and human health. In this study, an experiment had been designed to hydrolyse sheep in alkaline medium, the operational condition extraction of KH has modeled optimized. The structure, morphology, functional groups, particle size, molecular mass extracts were evaluated experimentally by scanning e...

cofe2o4 magnetic nano particles (mnps) were synthesized by an efficient method in aqueous medium with the particle sizes of about 20-50 nm. then, a hybrid nanocomposite of polyaniline (pani)-cofe2o4 mnps has been electrodeposited directly on a stainless steel wire by the potentiostatic method. microscopic images of electrodeposited pani and pani-cofe2o4 nanocomposite coatings were obtained by s...

K. A. Juggernauth , K. Sun , A. J. Hart , and S. Daly c a Macromolecular Science and Research Center, University of Michigan, 2455 Hayward St, Ann Arbor, MI 48105 b Electron Microbeam Analysis Laboratory, Department of Materials Science and Engineering, University of Michigan, 2455 Hayward St, Ann Arbor, MI 48105 c Department of Mechanical Engineering, University of Michigan, 2350 Hayward St, A...

To explore the dynamic response and damage evolution of coal under multiple high-pressure air blasting (HPAB), simulated specimens were used in HPAB experiments, variation laws stress field, vibration cumulative fracture failure process analyzed from a macro point view. A scanning electron microscope (SEM) mercury intrusion porosimetry (MIP) to observe pore distribution near blasthole specimen ...

High autogenous shrinkage property is one of the disadvantages ultra-high-performance concrete (UHPC), which may induce early age cracking and threaten safety structure. In present study, different dosages calcium sulfoaluminate (CSA) cement were added in UHPC as an effective expansive binder. Hydration mechanism, property, compressive strength carried out to investigate effect CSA addition on ...