Juniper Publishers-Mining Science Technology

  Insights in Mining Science & Technology Abstract Taking advantage of the technology’s fiercely improved competitiveness in Solar Power, Portugal is investing solid in this type of technology. Solar energy has been presented as a key solution for satisfying the energy demand with environmental and social benefits. Being true on energy production (electricity and thermal), on the remaining life cycle one can find evidences far from it. The electric components of a PV panel are still based on rare elements, such as Silicium. The manufacturing the Solar panels requires cooper, iron, steel and other metals. The electricity by PV production obliges the use of storage devices, mainly batteries, that uses elements dangerous for the environment, such as acids. Also, modern batteries are based on rare elements, such as lithium. The exploration of raw materials, such as silicium and lithium, is very controversial because of the local social impacts on agriculture, forestry,...

  Insights in Mining Science & Technology Abstract This research is aimed to simulate the heat affected zone (HAZ) in X60 steel after thermal cycle simulation of welding by using specific simulation equipment. Optical microscopy and microhardness tests were used as techniques of characterization. The obtained results indicated that the HAZ can be divided in different sub-zones. The formation of microstructures in each zone depends on the level of thermal exposure. Microhardness measurements showed an increase of microhardness in the most examined sub zones of HAZ compared with the microhardness in the base metal. Keywords: Welding; Heat affected zone; Microstructure; X60 steel; Thermal cycle simulation Abbreviations: HAZ: Heat Affected Zone; Hv: Hardness Vickers; FZ: Fusion Zone; BM: Base Metal; OM: Optical Microscopy; WF: Widmanstatten Ferrite; AF: Acicular Ferrite; XRD: X-Ray Diffraction Introduction Microalloyed steels have allocated...

  Insights in Mining Science & Technology Abstract On the basis of well logging and logging data, combined with the analysis of thin section and SEM. The diagenesis of Chang 8 reservoir in Triassic Yanchang Formation in Fuxian Jiangjiachuan area of Ordos basin were analyzed. Four diagenetic facies were divided: a) Chlorite membrane cementation-residual intergranular pores + feldspar corrosion facies b) Chlorite, illite cementation-residual intergranular pores + feldspar corrosion facies c) illite cementation-feldspar corrosion facies d) Carbonate cement phase According to the study results of diagenetic facies, combined with production test data statistical results, the capacity of different types of diagenetic facies was analyzed. Keywords: Yanchang Formation; Chang 8 reservoir; Diagenesis; Diagenetic faces; Ordos Basin Introduction The diagenetic facies can be used as genetic markers of reservoir undergoing multi-type and multi-stage digen...

  Insights in Mining Science & Technology Abstract The history of science has accumulated many hypotheses and theories about the development of the Earth. The dominant part of them uses the reduction principle (reducing the complex to the simple and the higher to the lower), ignoring the effect of emergence. The end of the twentieth century coincided with the awareness of the physical limitations of Euclidean space, the beginning of a new rationality, a serious transformation of science from a discrete-atomic (traditional) Platonic to a holistic resonant-field Aristotle, where the form of systems is of fundamental importance. In search of a new paradigm, we turned to elliptical notions of space; as a result, we created a holographic model of matter (GMP). The article contains the rationale for the resonant field theory of global tectonics of planets and the geodynamics of the Earth based on the ideas of modern rationality, including the principle of wave-particle d...