Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: July 2016
Authors: Giorgio Monti, Giorgia di Gangi, Marco Vailati
The code does not provide guidance about this topic: it just proposes a solution according to the classical deterministic approach, corrected by using the so-called Confidence Factors (CF).
The geometry can be input through 2-D or 3-D dxf files, which allow a better assignment of material properties to different walls, distinguishing them by layers.
With known geometry, VENUS automatically computes the inertial properties of each storey, including also the torsional stiffness in case of eccentricity between center of mass and center of stiffness.
Output data of a generic storey GLOBAL SAFETY FACTORS STOREY SAFETY FACTORS DIR LS MIN.
FACTOR MAX.
Online since: October 2012
Authors: Chi Chen Huang, Hsin Yen Fan, Chia Rung Lin, Jung Chung Hung, Ching Hua Hung
Fig. 5 Finite element model Fig. 6 Solid element model of the tube Fig. 7 Shell element model of the tube At high temperatures, the material properties are sensitive to strain rate.
The material properties adopted in the simulation was derived from the material database of DEFORM.
Three factors may cause a deviation between the simulation and experiment results.
First, the material properties derived from the material database of DEFORM probably differ from material properties of the tube used in the experiment.
Temperature change affects the material properties.
Online since: March 2021
Authors: Mohammed S. Elwan, Ahmed S. Amein, Abdelhameed S. Eltanany
Experimental results, carried out in a standard computer, verify its effectiveness where it utilizes the privileges of image constitutional depicting, allowing extraction of the most powerful key points since it preserves robustness of co-registration process using image frequency properties which are not variant to illumination.
Based on the properties of structure stability and informativeness; the usage of local features is preferred since the process of distinguishing a group of noteworthy points can be achieved where the points have specific properties [6-11].
They have properties of providing a representative set of points with highly repeatable in the scale dimension and being insensitive to scale, illumination, rotation, and noise variations.
The privileges of image constitutional depicting allow to detect and extract the most powerful keypoints since it preserves robustness of co-registration process where the frequency properties of the image are not variant to illumination or noise changes.
[12] K Y Kok and P Rajendran, Validation of Harris Detector and Eigen Features Detector, International Conference on Aerospace and Mechanical Engineering (AeroMech17), 370 (2018)
Online since: April 2011
Authors: Pudji Untoro, Hendi Saryanto, Darwin Sebayang, Deni S. Khaerudini, M.A. Othman, T. Sujitno
It has been reported that nanocrystalline exhibit a variety of previously unavailable properties including surface reactivity [7].
Other technology, surface treatment with ion implantation widely used to modify the oxidation behaviour and surface mechanical properties of metals [8].
It has shown that the commercial ferritic steels still need further modification due to possess the suitable properties required for long-term reliable cell performance.
The higher oxidation rate is believed to be caused by the formation of volatile oxides which can affect by inward diffusion of Ti implantation to the surface of alloy.
The parabolic rate constant of developed specimen at 1173 and 1273 K (Figs. 2a and b) were clearly significant show the different improvement of oxidation kinetics which is up to factor of 10 lower; while at 1373 K (Fig. 2c), it is only as much as factor of 2 lower compared to that as received alloy.
Online since: December 2013
Authors: H. Kamarudin, Azmi Rahmat, A.M. Mustafa Al Bakri, Z.F. Farhana
The strength of concrete which is the most important property can also be affected by these pores [1].
For instance, Lian et al. [2] stated that the porosity of an internal structure could affect the strength of concrete.
Lian et al. [3] in a different study found that the characterization of mechanical capacity of porous concrete could be determined from the investigation of the compressive strength of porous concrete.
Besides, Sidney Mindess [4] stated that the total porosity and pore size distribution are the most importance factors which could affect the compressive strength of the samples.
This shows that the porosity affects the compressive strength.
Online since: September 2014
Authors: Ji Wang Yan, Kazuma Asakura
To date, most attempts to create hydrophobic/hydrophilic surfaces involve etching and coating/deposition techniques where chemical/physical effects are used to modify material property or composition of a substrate, such as a silicon wafer.
By cutting micro grooves having different depths, cross sectional shapes and orientations, the significance and anisotropy of the hydrophobic/hydrophilic characteristics are expected to be controllable precisely without changing the material properties of the surface.
This paper aims at clarifying the relationship between surface wettability and groove depth/pitch on a brass surface, and identifying key factors influencing the mechanisms of the micro grooving process.
The grain boundary effect will also affect the uniformity of wettability.
In micro grooving, burr formation takes place significantly at certain depth of cuts, which might affects the surface wettability.
Online since: February 2012
Authors: Zhi Long Xu, Lian Fen Liu, Chao Li, Xiao Fan Yang, Teng Hui Zeng, Ling Xiang Li
Effect of Cutting Oil on Grinding Cemented Carbide Xiaofan Yang1,a, Chao Li1,b, Tenghui Zeng2,c, Lingxiang Li2,d, Zhilong Xu1,e, Judong Liu1,f 1School of Mechanical Engineering, Jimei University, Fujian, Xiamen 361021, China 2Toolmanufacturer of Xiamen Golden Egret Special Alloy Co.
Total-synthesis cutting oil is a kind of cutting oil which possesses excellent combination properties of cooling and lubrication.
The lubricating property of cutting oil depends largely on its penetrability, and the penetrability of cutting oil depends on its viscosity as well.
In the grinding process, the cut depth affects the grinding process in different degrees as well.
Then the grinding force will get higher, the surface quality of workpiece will get worse, and the wear of grinding wheels will increase. 3) There are many factors affected the quality of grinding process.
Online since: September 2011
Authors: Li Ping Liu
Because special landform, geological conditions in Loess donga, the route strike the ditch most;because subgrade occupies long and narrow channel of natural form, which makes the subgrade often not only drain difficultly, but also is affected by mountain extraneous water on both sides .
Therefore, subgrade underground drainage design is mainly underground trench flow calculation, and filter layer material and design affect seepage flow calculations, thus affecting the reliability of flow calculation.
The number of filter layer is mainly decided by two factors: the first is the size of lower drainage layer, the second is each layer thickness.
General provisions, artificially construction Tmin≥20cm, mechanical construction Tmin≥3m.
According to the type of filter layer, protected soil property and seepage damage form, corresponding design method is selected. (3)to design the first filter layer.
Online since: May 2013
Authors: Shobhit Singh Chauhan, A.L. Sharma, R.V. Jasra
The chemical structure and properties of cresol red dye are listed in Fig. 1
Chemical structure and properties of cresol red dye.
Accordingly, physical and optical properties of the films were studied and are discussed below. 3.1.
General Properties of Sol and Films The presence of film on the glass slides was indicated by an increase in weight by 140-160 mg after deposition of film.
Boilot, Optical properties of functional hybrid organic-inorganic nanocomposites, Adv.
Online since: March 2014
Authors: Pete Walker, Andrew Heath, Daniel Maskell
The properties of the geopolymer are highly dependent on many factors.
Varying mechanical properties are achieved with a kaolinite based lateritic soil that is mixed with an alkaline hydroxide that is set under different temperatures.
Table 1: Soil Properties (Maskell et al., 2012) Properties % Physical Properties Liquid Limit 24 Plasticity Index 8 Linear Shrinkage 6 Particle Grading Sand 33 Silt 46 Clay 16 Mineral Content Siderite 2 Hematite 3 Smectite 3 Chlorite 6 Illite 16 Kaolinite 31 Quartz 39 Elemental Composition (wt.)
Modern earth masonry : Structural properties and structural design.
Mechanism of geopolymerization and factors influencing its development: a review.
Showing 21431 to 21440 of 25974 items