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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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
doaj +1 more source
Irregular Oscillatory-Patterns in the Early-Time Region of Coherent Phonon Generation in Silicon [PDF]
, 2017 Coherent phonon (CP) generation in an undoped Si crystal is theoretically investigated to shed light on unexplored quantum-mechanical effects in the early-time region immediately after the irradiation of ultrashort laser pulse.
Hase Muneaki +6 more
core +2 more sources
Simulation of Downhole Rock-Breaking Characteristics of PDC Bit Composite Impact
Shiyou jixie, 2023 To compare the rock-breaking performances of various impact drilling techniques,a single-PDC-cutter rock impact model was built using the ABAQUS/Explicit module to study the rock-breaking characteristics of a single PDC cutter in cases of no impact,axial
Lei Yuqi +6 more
doaj
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
doaj +1 more source
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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Doppler cooling of a Coulomb crystal [PDF]
, 2001 We study theoretically Doppler laser-cooling of a cluster of 2-level atoms confined in a linear ion trap. Using several consecutive steps of averaging we derive, from the full quantum mechanical master equation, an equation for the total mechanical ...
A. W. Vogt +33 more
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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
openaire +2 more sources
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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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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