Search results

Bornitz Prediction Model Bornitz (1931) proposed the Rayleigh wave attenuation formula in considering both geometrical attenuation and material damping when an exciting force is applied on a half-space soil surface.
Traffic induced environmental vibrations and controls [M].Beijing Science Press, 2010:4-10, 50, 228-233
Characteristics and attenuation of ground vibration caused by traffic vehicle [J].Journal of building structures, 1987, 1:66-67
Attenuation of ground vibration induced by dynamical machinery [J].Journal of Hunan University, 1982, 9(3):12-18
Propagation of ground vibration: a review [J].Journal of Sound and Vibration, 1976,49(2):179-193

JOURNAL OF MOUNTAIN SCIENCE, 2009,27(1): 54-62
Structure Model Construction of Rock and Soil Aggregate based on Digital Image Technology and its Numerical Simulation on Mechanical Structure Effects[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(1):156-162
Chinese Journal of Rock Mechanics and Engineering, 2010, 29(3): 477-484
Nature of stress accommodation in sheared granular material: Insights from 3D numerical modeling[J].
Earth and Planetary Science Letters, 2007, 259: 469–485

Materials and Methods The paper focused on developing a hybrid model component to study the effect of nitrate nutrients in surface water by monitoring its concentration along the river reach.
International Journal of Environmental Protection 2:29-34
Journal of earth system science 123:1317-1324 [18] Kumarasamy MV (2015) Deoxygenation andReaeration Coupled hybridMixing cells Based Pollutant Transport Model to Assess Water Quality Status of a River. 
Environmental Science and Pollution Research 24:22967-22979 [20] Ghosh N (2001) Study of solute transport in a river.
Science of the Total Environment, 465, 173-195

The rust formed from the pipe surface forms tiny asperities that are weaker than the pipe materials and, as such, are easily knocked off by the flowing fluid, exposing the surface to more rust formation processes and ionic losses.
Journal of Natural Gas Science and Engineering 29 (2016): 530-549
Corrosion Science, 193:(2021)109904
Materials and Design 198 (2021) 109326. https://doi.org/10.1016/j.matdes.2020.109326
Corrosion Science, 49 (12), 2007:4308-4338

Makinde2,b 1Centre for Research in Computational & Applied Mechanics, University of Cape Town, Rondebosch 7701, South Africa 2Faculty of Military Science, Stellenbosch University, South Africa.
Chinyoka, Viscoelastic effects in double-pipe single-pass counterflow heat exchangers, International Journal for Numerrical Methods in Fluids, Volume 59, 2009, Pages 677-690
Eegunjobi, Numerical investigation of entropy generation in an unsteady flow through a porous pipe with suction, International Journal of Exergy, Vol. 12, Issue 3, (2013) 279-297
Makinde, Computational analysis of CO2 emission, O2 depletion and thermal decomposition in a cylindrical pipe filled with reactive materials, Communications in Nonlinear Science and Numerical Simulation, Vol. 18, Issue 9, (2013) 2448-2461
Chinyoka, Thermal decomposition analysis in a sphere of combustible materials, Advances in Mechanical Engineering, 9(2), 2017, 1-14.

Experimental Experimental material.
Figure 1 presents the analyzed material.
The material was sieved using ten test sieves, with openings sizes ranging from 24 to 115 mesh, plus a pan in the bottom, during 60 min. in a sieve shaker (BerTel); then the retained materials in each sieve and in the bottom pan were weighted.
Bridgwater in: Progress in thermochemical biomass conversion (edited by Blackwell Science Ltd., London 2001)
Wilkinson: The Canadian Journal of Chemical Engineering Vol. 73 (1995), p. 562.

Such suggestions were put forward as increasing the anti-collision space, enhancing the strength of structural materials, performing stricter acceptance check for the outsourced casters and confirming the process inspection of semi-finished products.
Such suggestions were put forward as increasing the anti-collision space by improved design and confirming the inspection as well as enhancing the strength of structural materials by improved design and confirming the inspection.
As for problems in manufacture of baby walkers, such as unqualified outsourced casters and the processing technique not always in conformity with requirements for accessible parts, following suggestions were put forward for improvement: checking before accepting outsourced materials and components in strict accordance with requirements in product design/process documents; intensifying the control of key procedures in production and selecting the appropriate process for and controlling procedures with product safety easily out of control; carrying out the process inspecting of semi-finished/finished products strictly in accordance with requirements in design/process documents and the conformance testing procedures to ensure batch products meet safety standards and requirements.
Acknowledgements This work was financially supported by the Science and Technology Project of General Administration of Quality Supervision, Inspection and Quarantine named Typical Case Study of Automobile Recalls related to Ergonomics Security.
Nicholson: Irish Medical Journal Vol.3 (2011), p.1 [2] L.

Datta, Effects of pack composition on the formation of aluminide coatings on alloy steels at 650 C, Journal of Materials Science. 40(8) (2005) 1959-1966
Opila, Volatility of common protective oxides in high-temperature water vapor: current understanding and unanswered questions, In Materials Science Forum. 461 (2004) 765-774
Lai, High-Temperature Corrosion and Materials Applications, ASM International, 2007
Ul Hasan, The morphology of coating/substrate interface in hot-dip-aluminized steels, Materials Science and Engineering: A. 472(1-2) (2008) 157-165
Kulevich, Aluminizing of the Cr15Al5 alloy surface by hot-dipping in the melt, IOP Conference Series: Materials Science and Engineering. 537(2) (2019) 022069

In practice, soft and porous materials such as glass wool, rock wool and polyurethane are primarily used in soundproof designs.
Despite their excellent sound absorption properties, soft and porous materials have some shortcomings such as the loss of soundproof properties with the breakdown and dispersion of the material, vulnerability to fire and contamination of the environments.
When a sound wave enters the surface of foam, the air between pores begins to vibrate as well as cell wall materials.
A material with a lower density has a relatively wider cell wall surface 10mm area inside, and because of this, the air between pores began to vibrate and the cell wall materials began to materials when sound wave entered the surface of foam.
Hur, Korean Journal of Materials Research, 2002;12:729 [9] Wu Jiejun, Li Chenggong, Wang Dianbin, Gui Manchang, Composites Science and Technology, 2003;63:569 [10] T.J.

The primary problem of eco-materials is how to judge whether a material is environmentally friendly or not, and the method of life cycle assessment is usually used to evaluate it.
We use the exergy embodied in mineral resources and energy to change the natural state of materials to a state with lower entropy for our use in the production of materials, in which some high entropy castoff and waste heat is generated along with the products.
Journal of Environmental Management. 2008, 86(2): 372-382 [4] I.
The introduction of resources science.
Beijing: Science Press. 2004 [8] G.