This paper describes a tablet-based application to be used by novice geologists for taking geological measurements during fieldwork. The application was implemented on an iPad2. Both our app and the FieldMove Clino iOS app (from Midland Valley, a well-known geophysics software company) were compared with ground truth measurements taken using a Silva compass clinometer. The results show that the...

Abstract As a commonly used and effective technology for increasing the permeability of coal–rock reservoirs, hydraulic fracturing has been widely in engineering sites to realize efficient exploitation utilization gas resources reservoirs. The core is initiation, propagation, path cracks. In this paper, combination true triaxial physical test numerical simulation study influence coal bedding ch...

Under uniaxial loading, the heterogeneity of rock mass, change mechanical properties joints, and progressive fracture process mass significantly affect size effect anisotropy columnar jointed basalts (CJBs). To reveal features failure mechanisms CJBs influenced by anisotropy, digital image correlation (DIC), meso-damage mechanics, statistical strength theory, continuum mechanics were combined (...

Stochastic simulation of fracture systems is an interesting approach to build a set of dense and complex networks. However, discrete fracture models made of planar fractures generally fail to reproduce the complexity of natural networks, both in terms of geometry and connectivity. In this study a pseudogenetic method is developed to generate stochastic fracture models that are consistent with p...

The effects of honey solutions on preventing browning discoloration and maintaining visual appearance in fresh-cut ‘Nam Dok Mai’ mango fruit and the comparison of honey dip and commercially used citric acid and ascorbic acid dips were investigated. The mango cubes were dipped in honey solutions at the concentration of 0, 5, 10, 15, 20 or 25 % (v/v) and the visual appearance and browning intensi...

Abstract Understanding the formation mechanisms of complex fracture networks is vitally important for hydraulic fracturing operations in shale formation. For this purpose, a experiment under core-plunger scale conducted to investigate impact bedding plane angle, borehole size, and injection rate on initiation behaviors laminated rock. The results rock properties demonstrate that anisotropic cha...

Floor water inrush has always been an important problem affecting coal mine safety. The from the deep seam floor is final manifestation of channel formed by expansion and penetration rock mass cracks under combined action a high ground temperature, stress, karst pressure strong mining disturbance. fault structurally weak plane developed in complete layer, which can be regarded as permeable with...

There are a large number of non-penetrating collinear cracks in the rock slope an open-pit mine. The timeliness mass is problem that cannot be ignored terms engineering safety. Based on superposition principle and fracture mechanics, stress intensity factor crack tip with fractures under biaxial compression was calculated this study. A mechanical model propagation constant load established acco...

High-performance polymer microlens arrays were fabricated by means of withdrawing substrates of patterned wettability from a monomer solution. The f-number (f(#)) of formed microlenses was controlled by adjustment of monomer viscosity and surface tension, substrate dipping angle and withdrawal speed, the array fill factor, and the number of dip coats used. An optimum withdrawal speed was identi...