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Online since: August 2008
Authors: Yu Teng Liang, Yih Chih Chiou
The purpose is to examine the influences of various control factors on tool wear.
The chemical composition and mechanical properties of 6061 aluminum alloy are given in Table 1.
Their properties are listed in Table 2.
Fig. 1 Experimental set-up Table 1 Chemical composition and mechanical properties of 6061 aluminium alloy.
As shown, four control factors were explored and each control factor has three levels to be investigated.
Online since: January 2014
Authors: Xiu Chen, Guang Wu, Jia Hui Shong, Shen Tao Xu, Yong Bin Lai, Jun Feng Shu
So it is very important to study on the cold flow properties of WCME and find the way to improve its cold flow properties.
In the last decades, the awareness of the factors influencing the cold flow properties and its inherent laws encourages many researchers to explore approaches to improve the cold flow properties of biodiesel.
Clod Flow Properties.
Improvements of Cold Flow Properties.
Adding small amount CFI in blending oils hardly affected the viscosities, and it did little influence on the flow properties at low temperature.
Online since: January 2025
Authors: Mrigendra Singh, S.C Solanki, Basant Agrawal, Rajesh Bhargava
The thermal properties of traditional fluids may be enhanced by nanoparticles such as metals, oxides, carbides, or carbon nanotubes in base fluid, called nanofluids.
In [33] This study apply Taguchi approach to optimize the affecting parameters of the photovoltaic thermal system and it assessed the analysis of variance (ANOVA), and an orthogonal table was created to examine how each control factor affected the efficiency of heat storage and power generation.
The thermo physical properties of the fluids are independent of the temperature. 3.
The optical properties of the material remain constant. 5.
Affecting the Variable for Optimization.
Online since: August 2014
Authors: Milad Hatami, Seyed Mojib Zahraee, Jafri Mohd Rohani, Ali Asghar Bavafa, Kambiz Ghafourian
Choosing Control and Noise Factors The selected controllable factors in this study are walls (A), ceiling (B), window (C).
Table 2 defines each level for the main factors.
Main and noise factors and levels Level Main Factors Noise Factors Wall (A) Ceiling (B) Window (C) Humidity (E) Air flow (F) Temperature (G) Low level(1) 1 1 1 60 1 20 High level (2) 2 2 2 80 3 26 Table 2.
Maximum desirability of energy saving Table 4.Effect and ranking of mean and SN ratio for each controllable factor Factors Levels Wall (A) Ceiling (B) Window (C) Low level (1) 226051 -107.08 235730 -107.44 236560 -107.47 High Level (2) 240938 -107.63 231259 -107.28 230429 -107.25 Effect 14887 -0.55 -4471 0.16 -6134 0.22 Ranking 3 3 2 2 1 1 Discussion Generally, building elements behave differently regarding energy performance depending on the location, climatic conditions and physical properties of the building.
Conclusion In the residential buildings there are many factors that have effect on the energy efficiency and saving such as location, climate condition and physical properties and etc.
Online since: September 2011
Authors: Dong Qi Tang, Jian Bing Peng
Third is mechanical vibration effect inducing loess landslide.
From many times under the influence of human activities loess landslide disaster can be seen, each time landslide caused an extremely serious loss of life and property.
On May 16, 2009, Lanzhou happened landslide (Fig. 2), it mainly because of slope mass excavation at bottom to housing estate development and formed the high and steep slope , slopes top vegetation caused water infiltration, it caused 7 people killed and buildings were destroyed and formed serious social unstable factors.
However, these engineering activity not only correlation, but also with inducing factors intercoupling of the natural landslide, engineering loess landslide disaster complex varied, the characteristics of complex displays for: 1) Disasters frequent occurrence, universal. 2) Mechanism of factor is complicated, particularity; 3) Disasters it is difficult to identify, latent; 4) Disasters is not easy to predict.
This kind of slide is many geological factors superimposed effect and human engineering force together formative.
Online since: November 2011
Authors: Jose María Cabrera, J.M. Prado, Gonzalo Varela-Castro
DRX is able to cause a great impact on the hot flow behavior affecting the microstructure and properties of the material after processing.
Then, the desired mechanical properties can be achieved by acting on the DRX kinetics [1].
There is a number of factors which can affect the DRX namely: the chemical composition of the alloy, the grain size at the beginning of the deformation, the deformation mode (Fig. 2) and the applied thermomechanical cycle [3,7-9].
Valuable information for modeling features of these processes like the kinetics of transformations, mechanical properties, microstructure evolution and so on, can be obtained.
The data show the different approaches provided and applied in each particular case and that there is a wide range of variables that affecting the determination of the kinetics of DRX.
Online since: July 2015
Authors: Petr Konvalinka, Filip Vogel, Jan Machovec
Brückner et al. speak about fact, that uniaxial loading tests are affected by many factors.
They tried what the various mixing procedure and curing conditions do with a matrix flowability and mechanical properties of the composite.
Monteiro, Concrete: microstructure, properties, and materials.
Konvalinka, 2015, Development of mechanical properties of steel fibers reinforced high strength concrete, Advanced Materials Research, Vol. 1077, pp. 113-117
Reiterman, 2014, Effects of Different Types of Steel Fibers on the Mechanical Properties of High Strength Concrete, Advanced Materials Research, Vol. 1054, pp. 80-84.
Online since: September 2018
Authors: Leonid M. Usepyan, Elizaveta O. Lotoshnikova, Valeriya N. Telegina, Elzara O. Tsybenko
If in the coating operation dynamic impacts (rap, rap with abrasion, etc.) begin to prevail, and they are getting stronger and more influence of aggressive factors (e.g., use of antifreeze), with intensive use premature products failure is possible.
The influence of grain composition of fillers on properties of hard-pressed concrete was estimated at the first stage.
On the one hand, the increase in the proportion of angular particles has a positive effect on the concrete strength, but reduces its durability, on the other hand, significantly increases the internal friction when compacting a rigid mixture and this negatively affects the homogeneity of the concrete properties.
Any additional fillers treatment (surface activation, enrichment) will improve the properties of hardened concrete.
Usepyan, The Effect of prescription and technological factors on the properties of fine-grained hard-pressed concrete, Don Engineering vestnik.1 (2018).
Online since: April 2025
Authors: Syed Awais Ahmed, Syed Inamullah, Syed Nasir Shah, Mohammad Umair Kasi, Mohammad Aslam
Additionally, various factors, including aggregate gradation, cementitious material content, and compaction efforts, influence the void content of PC [1].
The research aims to examine how incorporating pumice, a lightweight volcanic material, as a fine aggregate affects the properties of pervious concrete.
Table 1 Shows the Properties of Pumice Stone.
Raman, “Properties of pervious concrete - A state of the art review,” Mater.
High-Strength Concrete Properties and Difference
Online since: June 2010
Authors: Shi Cheng Zhang, Li Na Dong, Jiu Yin Pang, Chuan Sun
Research will be used description the solid content etc. of polymerization process used measure weight、viscosity etc., and analysis of particle structure and shape by TEM, SEM, analysis the surface properties of particles by FTIR, and ascertain by measuring adhesion properties of different emulsion on the same substrate by strength capability.
Introduction The natural protein adhesives was the beginning of the industrial application of wood adhesive [1-2] , its characteristic is abundant raw materials, cheap price, hot, cold, especially not stink, suitable for food packaging materials, Defect is poor, and add water resistance of much quantity of soybean protein, thus affecting the quality of the products.
[4] Cheng E Z, Sun X Z, karr S G, Adhesive properties of modified soy-bean flour in wheat straw particleboard [J].
Adhesion properties of soy-protein with fiber cardboard[J].J.
Alkali-Modified Soy-Protein with Improved [9] Adhesive and Hydrophobic Properties[J].J.Am.Oil.Chem.Soc.,1995,72(12): 1461~1464 [10] Zhao Ke, Hao Xufeng, Liu Dazhuang.
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