Many musical instruments have interfaces which emphasise the pitch of the sound produced over other perceptual characteristics, such as its timbre. This is at odds with the musical developments of the last century. In this paper, we introduce a method for replacing the interface of musical instruments (both conventional and unconventional) with a more flexible interface which can present the in...

In a study of the oxygen stores of the body anaesthetized paralyzed dogs were hyperventilated (Pa<x), = 15 mm Hg) for 2 hours. During the final 30 minutes the inspired mixture was altered from oxygen to air. The rates at which alveolar and arterial oxygen concentrations approached their new steady-state values were represented by the halftimes (t£) 0.17 and 0.23 minutes respectively. The turnov...

Unconventional geothermal resource development can contribute to increase power generation from renewable energy sources in countries without conventional hydrothermal reservoirs, which are usually associated with magmatic activity and extensional faulting, as well expand the those regions where resources already used. Three recent drilling experiences focused on characterization of unconventio...

Oil and gas shales are a system where understanding the mechanical properties at microscale is of paramount importance, e.g. to better understand behavior proppant-shale contacts their role in evolution propped fractures unconventional reservoirs. This work shows for first time an experiment coupling indentation testing with situ X-ray imaging Green River shale sample. A full compliance curve h...

Understanding the relationship between compressional and shear wave velocities their anisotropic characteristics in self-resourcing reservoir shales is of considerable interest for petrophysical, geophysical, geomechanical applications unconventional resources exploration production. We compile laboratory measurements on ultrasonic velocity known shale reservoirs worldwide. Their propagating ve...

Despite the significant advancements in geomodelling techniques over past few decades, it is still quite challenging to obtain accurate assessments of hydraulic fracture propagation. This work investigates effect fluid leak-off a dual-porosity system on propagation geometry, which, turn, affects hydrocarbon recovery from tight and unconventional reservoirs. Fracture within reservoirs was analyz...

Hydraulic fracturing technology can be used to jointly exploit unconventional natural gas such as coalbed methane and tight sandstone in coal-measure superimposed reservoirs for the enhancement of production. usually induces mixed fractures I II modes, but existing studies have not considered influence reservoir lithology on stress intensity factor I/II reservoirs. This paper develops an analyt...

Characterizing the origin of natural fractures in organic-rich fine-grained deposits is key to constraining permeability evolution these potential source rocks and tight reservoirs, as well assess hydraulic connectivity fluid systems which they develop. Differently oriented calcite-filled (i.e. veins), hosted by mudrocks Lower-Middle Triassic Montney-Doig unconventional resource play (Western C...

Abstract Unconventional geo-resources are critical due to their important contributions energy production. In this transition and sustainability era, there is an increased focus on CO 2 -enhanced oil recovery (CO -EOR) geological storage (GCS) in unconventional hydrocarbon reservoirs, the extraction of hot fluid for through enhanced geothermal systems. However, these solutions can only be achie...