Search results

The adsorption and photo catalytic properties of the asprepared samples were screened for the degradation process and it was found that sulphur doped graphene oxide showed more positive results for the degradation of chlorophenols than graphene oxide.
In the list of wonder materials, graphene has attracted much of researcher’s attention due to its excellent chemical, electronic, mechanical, and physical properties that can be modified or tuned by introducing hetero atoms of N, O or S thus making it multi functional.
These factors influence their catalytic activity especially when the mechanism is more of adsorption.
These factors are influenced by the pH of the adsorbent and adsorbate.
The screening process clearly indicates that the above factors can be tuned to make the GO and S-GO as efficient catalysts for the degradation of chlorophenols in particular.

The mechanical properties of the specimens are obtained through test.
Introduction For the advantages of the raw soil building, such as available local materials, adaptation to local conditions, simple technology, low cost and good thermal insulation properties, it is widely constructed in the majority of towns and villages in western China, especially in the remote mountain areas.
The strength test method of adobe and mud is designed in reference to "Test Method for the Bricks of Building Walls" (GB/T2524-2003) [2] and "Test Method for Key Properties of Constructional Mortar" (JGJ70-90) [3].
The influence which pine affect compressive strength of adobe and the optimal ratio of pine and are obtained by statistical methods .
(1) Comparing with the wall building with the traditional method, the improved earth wall significantly increases the failure load and the average load reaching by 124%, strengthens the stability and enhances the ductility factor

In fact, the change in microstructure of concrete is fundamental cause for the changes of mechanical properties.
Lima and RCA[20] thought that the concrete after fire changed its microstructure and macro mechanical properties such as compressive strength.
Ucarkosar, B., Yuzer, N. and Kabay,N.[35]in Yildiz Technical University think that when concrete exposed to high temperature, its physical and mechanical properties will change.
And there is no further study on the relationships among comprehensive conditions , concrete microstructure and macroscopic mechanical properties
Mechanical properties and microstructure of high strength concrete containing polypropylene fibres exposed to temperatures up to 200 °C Cement and Concrete Research, 2005, v35, n11, p2192-2198

On the Rapid Prototyping Technologies and Applications in Product Design and Manufacturing Pulak M Pandey Department of Mechanical Engineering Indian Institute of Technology Delhi, India, Pin:110016 Email: pmpandey@mech.iitd.ac.in Keywords: Solid modeling, Tessellation, Deposition, Prototyping, Stereolithography, Selective Laser Sintering, Fused Deposition Modeling, Laminated Object Manufacturing.
Second phase of prototyping started around mid-1970s, when a soft prototype modeled by 3D curves and surfaces could be stressed in virtual environment, simulated and tested with exact material and other properties.
At this stage choice of part deposition orientation [4-7] is the most important factor as part building time, surface quality, amount of support structures, cost etc. are influenced.
The laser is modulated in such away that only those grains, which are in direct contact with the beam, are affected [10].
Various important factors need to be considered and are steady nozzle and material extrusion rates, addition of support structures for overhanging features and speed of the nozzle head, which affects the slice thickness.

Khattak1,e 1 Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia a esah@fkm.utm.my, bknia_ismail@yahoo.com, cjasmi@fkm.utm.my, deng_forever88@hotmail.com, eadil@fkm.utm.my Keywords: solution annealed, ageing treatment, superelasticity.
From a practical point of view this alloy is the most attractive one among many shape memory alloys due to their unique properties such as excellent shape memory effect and superelasticity [1-5].
The deformation characteristics are affected by a number of factors, including the alloy composition [6], the heat treatment processes [7], the deforming temperature [8], and the stress–strain cycle [9].
On the other hand, R phase transformation has a significant smaller lattice deformation and is much less affected by the presence of particles.
It is noticed that the presence of austenite is the important factor that superelasticity could occurred.

One of the factors that affect the quality of bent parts is springback.
The amount of springback depends on many factors including the material properties (Young’s modulus, Poisson’s ratio, strength coefficient, yield stress, strain hardening and anisotropy coefficients), bending operation (tooling geometry, pad force, clearance, initial bend angle and bend radius, contact friction condition etc).
The drawback of the analytical models is that they are formulated with significant simplifications of process conditions and material properties which can considerably affect the accuracy of the results.
Table 1 Mechanical parameters determined by uniaxial tensile tests Denomination Experimental value Young's modulus E=2,1*105 [N/mm2] Poisson's ratio ν = 0,3 Coefficients of Swift's hardening law (see Eq.(2)) K=532 [N/mm2] ε0=0.00778 n=0,258 The finite element mesh used to discretize the raw part had: 26 equidistant nodes and 25 finite elements B21 (Beam elements with two nodes).
Takuda, Finite-element simulation of springback in sheet metal forming using local interpolation for tool surfaces, International Journal of Mechanical Sciences 50 (2008) 175–192

ŠIDLOVSKÁ Ľuboslava1,b 1Technical University in Kosice, Faculty of Mechanical Engineering, Department of Production Technique and Robotics, Nemcovej 32, Košice, Slovakia apeter.tuleja@tuke.sk, bluboslava.sidlovska@tuke.sk Keywords: vacuum, end effector, vacuum or suction cup, unilateral gripping Abstract.
Following factors are the bottom line: · weight of OM; · dynamic property of handling equipment (robot, manipulator); · terms of suction cups loading balance; · size condition and decomposition of mass of OM; · size and layout of suitable areas for gripping of suction cup; · surface characteristics of OM.
Moreover, the higher quality of vacuum that should be reached by ejector, the higher the demands on the power supply of energy (compressed air), Fig. 2 Gripping force of the suction cup is proportionally affected by its size, Fig. 3, which is useful almost without any limits.
When calculating the real force by relations (1), respectively (2) the theoretical force must be multiplied by , where t refers to as safety factor.
Equation for the calculation of real grip force so takes the form [N] (4) wherein safety factor t is determined depending on the orientation of the active handling acceleration.

Introduction SHM of plate-like structures can be performed using GW-based methods, however many factors, like location of sensors/actuators, sensor electronic system design, sensor shape, frequency range of excitation waves and applied signal processing algorithms affect the performance of the system [1].
Another critical factor is transducers’ distribution over the investigated plate.
The main advantage of the algorithm is its robustness [3], however it requires precise information on material properties and the thickness of the investigated structure which may be unavailable.
The advantage of this approach is that not only damage-reflected waves can be used as damage symptoms but also reflections from the structural elements affected by the damage can be seen in the differential image.
Uhl, “Self-focusing lamb waves based on the decomposition of the time-reversal operator using time–frequency representation,” Mechanical Systems and Signal Processing, vol. 27, no. 0, pp. 337 – 349, 2012

Result and Discussion Comparison of physicochemical property. 1.
Although combustion efficiency and performance of internal combustion engine may be slightly affected, this situation can be ignored, and might be found in some advanced electronic combustion boilers.
In the future commercial use, improvement of safety of relevant storage devices and conveying equipment should be considered, and due to similar properties, no modification is made to any elements, and the periodic maintenance of internal combustion engine will not be adjusted.
The Key-Factor Modulation of Waste Tire Pyrolysis in Resource Chemical Plant for Recovered Fuel Production: Advanced Materials Research Vol. 852 (2014), p.768 [2] Wu, M.T.: A Study on Distribution Analysis and Reuse of Waste Tires, National Taipei University of Technology, Institute of Environmental Engineering and Management. (2011) [3] Tsai, H.H. : The Study of the Relationship between Exhaust Emission and Fuel Spray Combustion Characteristics of Tire Pyrolysis Oil in Diesel Engine (2012) [4] Kuo, C.H.: A Study on Combustion Characteristics of Tire Pyrolysis Oil in Diesel Engine, National Chung Cheng University, Institute of Mechanical Engineering. (2010) [5] Chang, Y.W.
A: Study on Gas Contamination from Combustion of Mixed Biomass Oil in Diesel Engine, National Chung Cheng University, Institute of Mechanical Engineering. (2009) [6] K.

Industrial byproducts addition to Portland cement is endorsed by important aspects: one is the possibility of confining a hazardous waste into a solid matrix, while obtaining a cement based solid, serving as a construction material and getting significant improvements in the cementious properties [10].
These two factors depend on the pozzolan’s nature and the active phases quantities and quality.
This could be attributed to the amorphous characteristics of this material, the average particle size and the chemical composition, these factors drive the improvement of the pozzolanic activity.
Hence, the Acid Neutralizing Capacity (ANC) is considered on of the wastes most important acid-base properties, related with the mobilization of toxic compounds [16].
Hreglich, et al., Inertisation of slags from the treatment of end of life automotive batteries and their reuse in the production of heavy clay products with soundproofing properties, Glass Tech.: European J. of Glass Science and Technology Part A. 49 (6) (2008) 313-316