Technology of Rock Destruction by Combined Explosion-Mechanical Load [PDF]
Наукові вісті Національного технічного університету України "Київський політехнічний інститут", 2017 Background. Rock drilling is characterized by an energy capacity of more than 120 kWh/m3. This is due to the fact that about 90 % of the energy is expended on the “preparation” of rocks for destruction.
Oleg M. Terentiev, Pavlo V. Gontar
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Method of specific energy for determination mechanical characteristics of structural steel
Magazine of civil engineering, 2011 The studies performed in present article are directed on improvement the practical methods of the existing steel structures examination. In particular, the new method for the determination of the mechanical properties of steel structure elements of the existing buildings and structures is offered.
Levanov A.V. +2 more
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Mechanical Size Reduction Of Lignocellulosic Biomass: A Mini-Review
Chemical Engineering Transactions, 2022 The principles of biomass mechanical size reduction and models predicting specific energy requirements of biomass comminution on particle size characteristics and machine variables were summarized in this mini-review.
Lukáš Krátký
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A Growth Model for Multicellular Tumor Spheroids [PDF]
, 2003 Most organisms grow according to simple laws, which in principle can be derived from energy conservation and scaling arguments, critically dependent on the relation between the metabolic rate B of energy flow and the organism mass m.
Condat, Carlos A. +5 more
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Design of a Pendulum Prototype for Dynamic Testing of Material Removal Using Picks
Energies, 2021 The need for large and fast excavations, together with noise and vibration limitations, means that mechanical removal is increasingly used rather than blasting.
María-Belén Prendes-Gero +3 more
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Energy Transformations in a Relativistic Engine
, 2020 In a previous paper we have shown that Newton's third law cannot strictly hold in a distributed system of which the different parts are at a finite distance from each other.
Qin, Hong +2 more
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Investigation of selected independent variables on extrusion of rice semolina with and without propeller [PDF]
BIO Web of Conferences, 2023 The influence of screws with and without propeller, as well as the independent variables of material moisture content, working screw speed, feeding screw speed and die temperature on the changes of some physical and mechanical properties during singles ...
Chalamov Yanush +3 more
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Optimization of Operating Parameters for Minimum Mechanical Specific Energy in Drilling [PDF]
, 2019 Efficiency in drilling is measured by Mechanical Specific Energy (MSE). MSE is the measure of the amount of energy input required to remove a unit volume of rock, expressed in units of energy input divided by volume removed. It can be expressed mathematically in terms of controllable parameters; Weight on Bit, Torque, Rate of Penetration, and RPM.
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Effects of variable resistance on smart structures of cubic reconnaissance satellites in various thermal and frequency shocking conditions [PDF]
, 2017 Piezoelectric materials are widely used as smart structures in cubic reconnaissance satellites because of their sensing, actuating, and energy-harvesting abilities.
Butt, Zubair +4 more
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Research on Interdependence between Specific Rock Cutting Energy and Specific Drilling Energy
Applied Sciences, 2023 A method based on extensive laboratory and field measurements was developed to determine the dependence of specific rock cutting energy (SEc) on specific drilling energy (SEd) for machines with different operating and design characteristics and similar ...
Davor Antoljak +3 more
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