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Online since: August 2013
Authors: Rong Yuan Jou
Moisture migration is a function of internal conditions, including the properties, temperature, and moisture content of the material.
The value of h was affected by various parameters, including the speed and physical properties of the thermal fluid, temperature differences between fluids, and other material and physical properties.
This method is affected by relative humidity, temperature, and wind velocity and direction.
To summarize, the two factors affecting drying were first, a driving force for mass transfer, where the partial moisture pressure of the wet material’s surface PSurface Moisture was greater than that of the hot air PAir Moisture, and second, a driving force for the heat transfer, where the temperature of the hot air Tair was higher than the temperature of the wet material’s surface TMaterial Surface.
The drying rate, at 3.64%/h, was affected by the ambient temperature.
Online since: August 2012
Authors: Guerold Sergueevitch Bobrovinitchii, Ana Lúcia Diegues Skury, Sérgio Neves Monteiro, Marcia G. de Azevedo
The present work investigates the properties of sintered ZrO2 nanopowder, stabilized with Yb2O3, as a tough enough pure ceramic with high thermal resistance for tooling compacts.
The final sintered material displays a well consolidated microstructure with properties that are adequate for tool bits application.
The remarkable properties of the ZrO2 result from its allotropic transformations.
Mechanical properties, both compression and flexural tests, were performed in a Instron machine.
· The density of the sintered compacts is relatively high and not affected by the La2O3 addition
Online since: July 2014
Authors: Ni Hu, Hao Li, Li Li Xiong
Both of them involve unsafe factors, such as human, objects, environment.
The focuses on hazard analysis are analyzing risk source I with active mechanical properties, such as foundation settlement, load, and explosion, designing, calculating, and setting up temporary structures and other safety precautions, to guarantee construction safety.
Foundation pit engineering emergency plan Since foundation pit construction is extremely complicated with many factors affecting safety, appropriate emergency measures must be ready to cope with adverse circumstance.
In addition, the competent government departments should further strengthen supervision and improve relevant examination system from the source to eliminate unsafe factors in safety special construction.
Online since: July 2017
Authors: Fei Chen, Rong Ma, Xiao Jun Sheng
The structural properties such as interlayer bonding state and fatigue performance were evaluated.
Overall, ERS material and structure had excellent road performance and mechanical properties.
While A:B=1: 2.3 and 1: 2.8, tensile properties met the requirements.
It can be filled more binder to improve the mix flexibility and anti-aging properties.
Fatigue Properties.
Online since: November 2005
Authors: Dong Gi Lee, Jin Woo Kim, Jung Ju Lee
However, because the DB that can predict mechanical properties of composite material and fiber orientation distribution by the fiber content ratio was not constructed, we need the systematic study for that.
Tensile strength of fiber reinforced polymeric composite is affected by the fiber orientation distribution more than by the fiber content ratio.
The products press-molded are not uniform because of fiber orientation and show aestropy, so it has a lot of effects on the mechanical properties of molded products.
Fiber orientation can happen by material factor such as intervening power of each fiber according to fiber diameter, the length of fiber, and molding factor such as closing speed of metal casting, molding press and the temperature of metal casting.
The products press-molded is not uniform because of fiber orientation and shows aestropy, so it has a lot of effects on the mechanical properties of molded products [1, 2].
Online since: August 2019
Authors: Gianmarco de Felice, Stefano de Santis, Garis Lorenzo Di Noia, Pietro Meriggi, Marika Volpe
Natural accelerograms were applied with increasing scale factor to collapse.
The arrangement of the units, the mechanical properties of the materials, the presence of openings, the construction details and the horizontal thrusts transferred by vaults or by the roof are some of the main features that affect the seismic performance of existing masonry structures.
Natural accelerograms were applied in horizontal and vertical directions, with increasing scale factor to collapse.
Structural details (shaped mesh elements at the corners, FRP connectors, grid spacing of the fabric and mechanical properties of the matrix) also play a crucial role and need to be designed carefully.
Borri, Properties of aged GFRP reinforcement grids related to fatigue life and alkaline environment, Appl.
Online since: August 2013
Authors: Hamid Nikraz, Behzad Ghadimi, Ainalem Nega, Colin Leek
Unbound materials display stress dependent properties.
Unbound materials display stress dependent properties.
Other material properties may also affect the fatigue life such as PMB’s, source of bitumen, aggregate/bitumen affinity etc.
The modeled pavement system has the same geometrical and mechanical properties in both programs.
Geometrical and Mechanical Properties of Pavement Model.
Online since: February 2013
Authors: Si Dong Li, Lei Yang, Qian Qian Ouyang
The drying process, which consumes considerable energy and greatly affects the molecular structure and properties of agar, is important.
So the product dried at higher temperature (100℃) is feasible and the properties of agar product meet the demand of use.
Labuza, Moisture transfer properties of dry and semimoist foods, J.
Page, Factors influencing the maximum rates of air drying shelled corn in thin layers.
Department of Mechanical Engineering, Purdue University, Purdue, USA. 1949.
Online since: September 2013
Authors: Xue Jun Zhao, Yang Yang
But for many years, green mining evaluation is lack of uniform standards and subjective decision factors affect much, so it is partly unfair.
Classified properties C from Data set S has m different discrete attribute value {C1, C2, …, Cm}.
Punishment factor is based on the parameter, using α to represent each node punishment.
The second is the second deviating node, and the final deviating node has the minimum affect.
[5] Paul P S, Maiti J, The role of behavioral factors on safety management in underground mines, Science Safety, 2007, 45:449-471
Online since: November 2016
Authors: Yu Mei Ding, Mahmoud M. Bubakir, Hao Yi Li, Wan Lin He, Wei Min Yang
Thus It is very important to find low cost, scalable fabricated, high sorption capacity, high selectivity, excellent reusability, optimum mechanical properties, and environment friendly materials that could meet all the requirements needed to be used as an efficient sorbent to clean up spills and recovering the oil .
The physical properties of oil, such as density, surface tension, and viscosity, could also influence the sorption capacity and the retention behavior as well.
The physical properties of the oil at 25 ± 1 °C and a relative humidity (RH) of 25 % are given in Table 1.
Results showed that change in temperature and oil concentration were important factors in determining the sorption capacity of the fibers.
Study of sorption properties and comparison with other cotton fiber-based sorbents.
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