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Online since: September 2013
Authors: Da Wei Tang, Yong Xian Guo, Shi Qiang Liang, Wei Chen
Additionally, ionic liquids process distinctive properties, such as negligible vapor pressure, good thermal stability, no corrosion, no crystallization and favorable solvating properties [5], which makes ionic liquids to be excellent alternatives for the traditional absorbent in absorption refrigeration.
As the further increase of Tgas,in, the positive factor is gradually weakened, but the negative factors are gradually enhanced, which causes that the positive factor is gradually offset by the negative factors and the COP tends to level off.
When the COP reaches the maximum value, the positive factor is just completely offset by the negative factors.
The reason is that the increase of Tchilled,in enhances the above mentioned negative factors.
The thermodynamic properties of [mmim]DMP/CH3OH were calculated with the modified UNIFAC model and the Wilson model.
Online since: January 2015
Authors: Oleg Kabantsev
Traditional methods of masonry modeling are based on the use of generalized ("effective") mechanical properties of the composite as a continuant homogeneous continuant medium.
For isotropic materials, Ω invariant tensor measures are represented by k and q functions, which, in turn, express the change in the deformation properties determining the behaviour of materials (elements) under hydrostatic pressure and pure shear, respectively.
In this case, the framework of structural modelling is required to consider what properties belong to the local particle/element of the material in excess of one of the highest aggregate (system) of possible strength criteria.
The results of numerical experiments established that the scheme for the formation and accumulation of local damages, as well as the extent to which the elastic-plastic properties of masonry depend strongly on the value of the tensile strength in the adhesive layer of a horizontal mortar joint.
Deformatsiya i razrusheniye [Mechanical properties of metals.
Online since: April 2022
Authors: Ahmed Hassan El Shazly, Hussien Noby, Jun Ichiro Hayashi, Hillarus Dela Gohoho
The physical properties of materials from the different processing combinations were investigated.
The versatility of activated carbon is offered by its textural properties and the ability of tailoring the surface for chemistry based on the targeted application.
This study seeks into investigate the impacts of the various processing techniques on the chemophysical properties of Egyptian Peanut Shell (PSH) as a case study.
The aforementioned functional groups attached on the surface of the carbon gives it its unique properties to determine its applicability in the intended field such as adsorption, gas sensing or energy storage.
Trugilho, “Factors affecting the mechanics of carbonized wood: literature review,” Wood Sci.
Online since: May 2021
Authors: Igor A. Khlusov, K.A. Yurova, L.S. Litvinova
Experimental titanium implants with a rough calcium phosphate (CР) coating with bio-inspired properties have been developed.
A change in the cytoskeleton can affect the organization and distribution of organelles and DNA in cells, epigenetically regulating the functioning of cell genes [Thomas C.H. et al., 2002; Shafrir Y., Forgacs G., 2002].
Findings During in vitro co-cultivation of human AMSCs with experimental CP-coated Ti implants with artificial microterritories for stem cells contact and distant interaction of cells and surface contributes to the well-known epigenomic effect of the physicochemical factors of ECM [Ratner B.D. et al., 2004].
Loboa, Cytoskeletal and focal adhesion influences on mesenchymal stem cell shape, mechanical properties, and differentiation down osteogenic, adipogenic, and chondrogenic pathways, Send to Tissue Eng Part B Rev. 18 (2012) 436–444
Khlusov, Formation and Properties of Bioactive Surface Layers on Titanium, Inorganic Materials: Applied Research. 2 (2011) 474–481.
Online since: December 2013
Authors: Ying Chen, Hai Yan Wu, Zhi Jie Liao, Mu Xiao, Feng Xia, J.Z. Xiao
.% 62.3 27.17 6.24 2.15 1.23 1.06 Abrasive granules and mechanical properties samples preparation.
They were polished to 3 mm × 4 mm × 40 mm by grinding machine for mechanical measurement.
Properties measurement.
During the grinding process, the change of circularity and particle size both affect grinding performance of abrasive, but the particle size was the dominating factor.
Online since: August 2015
Authors: Aswad Hi Saad, Agtri Henboral, Mariah Kartawidjaja, Cukup Mulyana
For plants that have been operating for a long time, aging becomes an important factor to be considered.
By using plant operating parameters in the form of pressure, temperature, and time of operation and secondary data in the form of thermal and mechanical resistance properties of the material the failure of DMW was analyzed.The sample of DMW shows in Figure 1.
As noted above, the long-term creep strength of the T22 is adversely affected by the loss of carbon.
Conclusion We have analyzed the cause of failure of DMW boiler tube using mechanical, thermal properties and microstructure data taken from the laboratory test.
Online since: February 2012
Authors: Giuseppina Ambrogio, Luigino Filice, Francesco Gagliardi, Odetta Aghinelli
Thanks to its excellent mechanical characteristics, Titanium rises above the others lightweight alloys [8, 9].
To well assess such an assumption, different aspects should be considered, i.e. the thermal properties of the material, the process temperature range, the microstructural evolutions.
A HSS steel punch with a diameter of 12 mm was used in order to ensure a good mechanical resistance at high temperature.
In practice, the heated surface increases by a factor 100, the specific power reduces by a factor 10.
Considerations based only on the energy consumption may lead to quick solutions that can affect the product performance in use.
Online since: May 2021
Authors: Salam Eid, Christy Lahoud, Chawki Lahoud, Marwan Brouche
These two energy factors have attracted international decision-makers and have been incorporated into energy policies and building codes [3].
Table 1: Thermophysical properties of materials used as SHS.
However, other properties should not be neglected.
However, it weakens the strength bonds and the mechanical properties of the mix and affects its durability.
This increase is caused due to several factors such as, lack of mandatory standards and codes for the Lebanese construction, the urban expansion which means the increase of new residential buildings, and the huge number of Syrian displaced.
Online since: March 2017
Authors: Ibrahim Siti Aida, Muhamad Nazim Ahmid
UV-Vis analysis indicated that the incorporation of Fe and varied calcination temperature may affect the optical properties as the absorption profile was shifted from 445 nm to 585 nm.
The effects of calcination temperature towards Fe-TiO2 properties are investigated and discussed.
Optical properties of samples were measured on a Shimadzu UV-VIS spectrometer (UV-1800) in the wavelength of 300-800 nm.
Another factor that can enhance the optical properties in visible light is by incorporating TiO2 with other metal ions [17,21].
The effect of calcination temperature on phase, morphology and optical properties were investigated.
Online since: October 2010
Authors: Olga Sokolova, Adele Carradó, Heinz Palkowski
These articles present an analysis of stress-strain properties, the changes in the structure and other important factors as the forming behaviour of the sandwich material and also the behaviour of sandwich components in the construction subject to complex loading.
These defects could decrease the bonding capacity, the mechanical properties and, in general, the overall quality of the sandwich materials.
Mechanical properties for the 316L skin, the PP-PE core and SMS, taken at room temperature and for three angles α to RD.
YS and TS have been found to be affected by corona treatment indicating that these composite properties were highly sensitive to interfacial phenomena.
The fields of application were pointed out corresponding to the obtained mechanical properties of reinforced sandwich structures.
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