Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: November 2024
Authors: Wega Trisunaryanti, Mokhammad Fajar Pradipta, Habib Fikri Hidayat, Muh. Siddik Ibrahim
Catalyst is one of the important factors in the ODS method.
The catalysts also observed magnetic properties. 2.3.
The results of the test of the magnetic properties of the catalyst are shown in Fig. 7.
Based on Fig. 7, Ps has magnetic properties as well as NiO-Ps, although NiO does not have magnetic properties.
Impregnation of Ni on Ps does not affect the magnetic properties of Ps to produce a NiO-Ps catalyst that remains magnetic, as evidenced by being attracted by a magnet.
The catalysts also observed magnetic properties. 2.3.
The results of the test of the magnetic properties of the catalyst are shown in Fig. 7.
Based on Fig. 7, Ps has magnetic properties as well as NiO-Ps, although NiO does not have magnetic properties.
Impregnation of Ni on Ps does not affect the magnetic properties of Ps to produce a NiO-Ps catalyst that remains magnetic, as evidenced by being attracted by a magnet.
Online since: July 2018
Authors: Li Zhong Yang, Yue Hu, Xiao Dong Zhou, Ya Qi Mao, Jie Cui
Although liquid materials in engine compartment are essential to maintain good performance of mechanical motion, their fire properties are truly worth studying in terms of trigging numerous vehicle fire accidents.
Quintiere [4] presented a comprehensively radiant heating theory, which underlay the close relations between the thermal properties of materials and flammability properties.
Table 1 Thermal properties of the flammable vehicle oils.
Tewarson, Thermophysical and fire properties of engine compartment fluids, SAE Technical Paper (2005)
Quintiere, A theoretical basis for flammability properties, Fire Mater. 30 (2006) 175-214
Quintiere [4] presented a comprehensively radiant heating theory, which underlay the close relations between the thermal properties of materials and flammability properties.
Table 1 Thermal properties of the flammable vehicle oils.
Tewarson, Thermophysical and fire properties of engine compartment fluids, SAE Technical Paper (2005)
Quintiere, A theoretical basis for flammability properties, Fire Mater. 30 (2006) 175-214
Online since: July 2024
Authors: Yeni Rahmawati, Siti Nurkhamidah, M. Ayub Rifai, Annisa Alifia Rahmah
One of the constituent materials of membranes is polymers, polymers are widely used because of their properties such as excellent film-forming properties, good mechanical strength, physical and chemical thermal stability, and stability over a wide range of pH levels [6].
This is in accordance with the false statement that the factor that affects permeability is porosity.
This membrane is not yet hydrophobic in accordance with the properties of the main material of the membrane, namely cellulose acetate.
Where membranes made of cellulose acetate have hydrophilic properties [13].
Yussof, “Effects of air gap on membrane substrate properties and membrane performance for biomass processing,” Korean J.
This is in accordance with the false statement that the factor that affects permeability is porosity.
This membrane is not yet hydrophobic in accordance with the properties of the main material of the membrane, namely cellulose acetate.
Where membranes made of cellulose acetate have hydrophilic properties [13].
Yussof, “Effects of air gap on membrane substrate properties and membrane performance for biomass processing,” Korean J.
Online since: July 2013
Authors: Biswajit Basu, Ricardo Simon Carbajo, Esther Simon Carbajo, Ciaran McGoldrick
Dynamic systems, that exhibit changes in properties such as mass, damping or stiffness, are of particular interest and industrial significance.
Sub second execution durations demonstrate the efficacy of the approach for continuous detection of change in sensed structural properties.
Once the algorithm is trained and calibrated, short and long term variations in the properties of the structure are detected progressively over time.
The lag, or delay, in reliably determining a change in the monitored system property can be affected by the resource availability of the processing node.
Mechanical Systems and Signal Processing 28 (2012) 212-228
Sub second execution durations demonstrate the efficacy of the approach for continuous detection of change in sensed structural properties.
Once the algorithm is trained and calibrated, short and long term variations in the properties of the structure are detected progressively over time.
The lag, or delay, in reliably determining a change in the monitored system property can be affected by the resource availability of the processing node.
Mechanical Systems and Signal Processing 28 (2012) 212-228
Online since: May 2010
Authors: Akira Maekawa, Toru Oumaya, Michiyasu Noda, Shigeru Takahashi, Toru Saito
Introduction
Residual stress due to welding or cold bending of a pipe is one of the important factors leading to such
damage as stress corrosion cracking (SCC) or high cycle fatigue crack initiation and propagation.
However, the gradient of stress in the weld heat-affected zone of the welded joint is generally so moderate that the average stress would not be remarkably different among the different sizes of the evaluation region.
Therefore, when comparing the three techniques, it was assumed that the stress was hardly affected by the sizes of the evaluation region.
Another factor has to be considered regarding the discrepancy of the measured and estimated hoop strains.
Wang: Single Crystal Elastic Constants and Calculated Aggregate Properties, MIT Press, Cambridge, MA (1971) [6] The American Society of Mechanical Engineers (ASME): ASME Boiler and Pressure Vessel Code, Section II, Part D - Properties, ASME, New York, NY (2004) [7] ABAQUS Version 6.8, Dassault Systèmes Simulia Corp., Providence, RI, USA [8] ISO/TTA 3: Polycrystalline Materials - Determinations of Residual Stresses by �eutron Diffraction, ISO, Geneva, Switzerland (2001) [9] S.
However, the gradient of stress in the weld heat-affected zone of the welded joint is generally so moderate that the average stress would not be remarkably different among the different sizes of the evaluation region.
Therefore, when comparing the three techniques, it was assumed that the stress was hardly affected by the sizes of the evaluation region.
Another factor has to be considered regarding the discrepancy of the measured and estimated hoop strains.
Wang: Single Crystal Elastic Constants and Calculated Aggregate Properties, MIT Press, Cambridge, MA (1971) [6] The American Society of Mechanical Engineers (ASME): ASME Boiler and Pressure Vessel Code, Section II, Part D - Properties, ASME, New York, NY (2004) [7] ABAQUS Version 6.8, Dassault Systèmes Simulia Corp., Providence, RI, USA [8] ISO/TTA 3: Polycrystalline Materials - Determinations of Residual Stresses by �eutron Diffraction, ISO, Geneva, Switzerland (2001) [9] S.
Online since: February 2006
Authors: John A. Steel, Nadimul Haque Faisal, Rehan Ahmed, G. Heaton, Bryan Allcock, R.L. Reuben
.,
1
Heaton, G. and
2
Allcock, B.
1
Mechanical Engineering, School of Engineering and Physical Sciences, Heriot-Watt University,
Edinburgh, EH14 4AS, UK
2
Monitor Coatings Ltd, Monitor House, 2 Elm Road, West Chirton Industrial Estate North,
Tyne & Wear, NE29 8SE, UK
N.H.Faisal@hw.ac.uk, J.A.Steel@hw.ac.uk, R.Ahmed@hw.ac.uk, R.L.Reuben@hw.ac.uk,
G.Heaton@hw.ac.uk, BryanAllcock@monitorcoatings.co.uk
Keywords: Acoustic emission; Thermal spray; HVOF; Non-destructive testing; Monitoring
Abstract.
Process parameters such as gun speed, oxy-fuel pressure and powder specification affect various characteristics of the coating, including thermal residual stresses; the lamellar microstructure and the topology and geometry of pores, all formed when the fused powder hits the surface, forming "splats".
AE parameters can be successfully correlated with HVOF spray process parameters and coating properties then it may be possible to use AE as a process control parameter to improve cohesive and adhesive strength, hardness, porosity and tribo-mechanical properties of thermal spray coatings using this technique.
Varying the gun transverse speed should alter the sprayed particle flux per unit area landing on the substrate, a factor which is known to affect the strength of the coating layer (Nishinoiri et al., 2003).
Process parameters such as gun speed, oxy-fuel pressure and powder specification affect various characteristics of the coating, including thermal residual stresses; the lamellar microstructure and the topology and geometry of pores, all formed when the fused powder hits the surface, forming "splats".
AE parameters can be successfully correlated with HVOF spray process parameters and coating properties then it may be possible to use AE as a process control parameter to improve cohesive and adhesive strength, hardness, porosity and tribo-mechanical properties of thermal spray coatings using this technique.
Varying the gun transverse speed should alter the sprayed particle flux per unit area landing on the substrate, a factor which is known to affect the strength of the coating layer (Nishinoiri et al., 2003).
Online since: January 2018
Authors: Benjamin Ghansah, Ernest Ansah, Pokuaa Andriana Sarkodie, Zhen Kai Zhang, Ben Bright Benuwa
USV is therefore a preferred choice to affect the job of maritime salvage at severe sea with unmanned advantage.
By bringing to light the limited application of some fundamental principles of human systems integration, this paper contributed to the holistic understanding of the various underlying factors that affect technology amalgamation in ship management processes as discussed below.
Further confirmation was presented in [31] which indicated that, this only adds to the other contributory factors of long hours of shift work without proper rest and administration tasks that pile up.
One common goal that is shared among mariners is to save people’s life and properties at sea through maritime communication activities applying advanced information and communication technology (AICT).
American Society of Mechanical Engineers
By bringing to light the limited application of some fundamental principles of human systems integration, this paper contributed to the holistic understanding of the various underlying factors that affect technology amalgamation in ship management processes as discussed below.
Further confirmation was presented in [31] which indicated that, this only adds to the other contributory factors of long hours of shift work without proper rest and administration tasks that pile up.
One common goal that is shared among mariners is to save people’s life and properties at sea through maritime communication activities applying advanced information and communication technology (AICT).
American Society of Mechanical Engineers
Online since: May 2012
Authors: Jing Shu Zhang, Huan Huan Nie, Yuan Long Yang, Yuan Yao
The one-stage loading composite slab is similar with the cast-in-place slab in mechanical behavior.
Mechanical behavior of smooth surfaces, indentation surfaces and binding reinforcements were researched by Hou Jianguo [5].
In addition, edge joints between the precast bottom panels may affect the integrity of composite slabs.
The roughness of bottom panel surface can affect the bond force of composite slabs.
Additionally, the edge joint detail is main factor in crack resistance and integrity for composite slabs.
Mechanical behavior of smooth surfaces, indentation surfaces and binding reinforcements were researched by Hou Jianguo [5].
In addition, edge joints between the precast bottom panels may affect the integrity of composite slabs.
The roughness of bottom panel surface can affect the bond force of composite slabs.
Additionally, the edge joint detail is main factor in crack resistance and integrity for composite slabs.
Online since: July 2011
Authors: Qiang Zhang, Fu Rong Liu, Ji Min Chen
The mechanical properties of the fabricated scaffolds were assessed and compared to the designed porous architectures.
The scan speed is also an important factor in the sintering process.
In the processing laser didn’t affect the component of the two powders.
The scan speed is also an important factor in the sintering process.
In the processing laser didn’t affect the component of the two powders.
Online since: July 2014
Authors: Jian Ping Zhang, Xiao Ling Zheng
Although there have been no MSD attributed accidents in the last twenty years, there is, however, a serious concern that MSD could occur again in the commercial aircraft fleet and it could potentially affect any ageing aeroplane in service.
Mechanical properties of AA 2524 are: young’s modulus 70GPa, yield strength 332 MPa, ultimate strength 463 MPa.
The curves of crack growth rate da/dN vs. stress intensity factor (SIF) range ΔK of the seven specimens are shown in Fig.1.
Mechanical properties of AA 2524 are: young’s modulus 70GPa, yield strength 332 MPa, ultimate strength 463 MPa.
The curves of crack growth rate da/dN vs. stress intensity factor (SIF) range ΔK of the seven specimens are shown in Fig.1.