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Online since: May 2014
Authors: Diarmuid Shore, Albert van Bael, Jerzy Gawad, Dirk Roose, Miguel Angel Ramirez Toledo, Rafael Schouwenaars
The simple shear testing of sheet metals is not yet standardised and can be implemented in a number of ways.
The number of correlated points and the standard deviation of the mean is given.
An ODF is a function which describes the volume fraction of grains with a crystallographic orientation in the range g±dg (see Eqn. 2 (a)).
Two Taylor type crystal plasticity models are currently implemented in HMS: (i) a classic full constraints Taylor model, referred to here as FC Taylor, implemented as described in [23], and (ii) an extended Taylor-type model incorporating grain interactions and morphology effects, referred to as ALAMEL and presented in [24].
The number of correlated points and the standard deviation of the mean is given.
An ODF is a function which describes the volume fraction of grains with a crystallographic orientation in the range g±dg (see Eqn. 2 (a)).
Two Taylor type crystal plasticity models are currently implemented in HMS: (i) a classic full constraints Taylor model, referred to here as FC Taylor, implemented as described in [23], and (ii) an extended Taylor-type model incorporating grain interactions and morphology effects, referred to as ALAMEL and presented in [24].
Online since: June 2014
Authors: Ming Liu, Tao Feng
The crumb grain of the loaves was assessed using a digital image analysis system (Crowley,Grau,&Arendt, 2000).
The crumb grain features chosen were number of cells.
Table 1 Effect of MBG on the bread quality parameters Control MBG Specific volume (cm3/g) 3.31±0.19a 4.07±0.23b Number of cells 430±21a 501±19b Moisture content ( % ) 38.12±0.14a 41.5±0.22b Values followed by the same letter are not significantly different (p < 0.05).
The crumb grain features chosen were number of cells.
Table 1 Effect of MBG on the bread quality parameters Control MBG Specific volume (cm3/g) 3.31±0.19a 4.07±0.23b Number of cells 430±21a 501±19b Moisture content ( % ) 38.12±0.14a 41.5±0.22b Values followed by the same letter are not significantly different (p < 0.05).
Online since: May 2016
Authors: Mohammed Ghammouri, M. Benhaddou, M. Abbadi
To avoid or at least limit clinical complications related to in-service failure, the stents are designed to endure high cycle fatigue (HCF) due to the high number of cycles caused by the blood pressure (4x107 cycles/year).
According to these approaches, fatigue cracks initiate in the planes of maximum shear and propagate through the grains.
Dang van's criterion Dang Van assumes that fatigue crack initiation occurs in critical stress raiser areas due to the unfavourable orientation of certain material grains with regard to the imposed loadings.
As many other approaches, Goodman considers a combination between the alternating and mean stress to state when a material fails at some given number of cycles.
According to these approaches, fatigue cracks initiate in the planes of maximum shear and propagate through the grains.
Dang van's criterion Dang Van assumes that fatigue crack initiation occurs in critical stress raiser areas due to the unfavourable orientation of certain material grains with regard to the imposed loadings.
As many other approaches, Goodman considers a combination between the alternating and mean stress to state when a material fails at some given number of cycles.
Online since: January 2022
Authors: Zainab Kassim Hassan
This search studying an experimental fulfillment on the thermal conductivity, apparent porosity, and Diametrical Strength of porous copper-zinc manufactured by the convert to carbon since firing process and combined with the oxygen cause to CO2 gas that rises up to air and leaves the number of pores. the basic metals are Cu and Zn pure powder metals with a different ratio (10-20-30)% of natural leaves especially palm leaves which is widely found in our natures, Cu fine powder (220 µm) has purity 99.5% as a matrix material to prepared composite material with ratio 80% of material total weight, 500g, Zn fine powder added as 20% from material total weight, the Zn metallic powder has purity 99.5%.
The additives natural that is a grounded palm leaves were cut to small parts then milled by using electrical mortar to get a fine powder which have a grain size (less than 0.75 𝜇m) which result by sieving process and added on to three ratios (10%-20%-30%) of 80%Cu-20%Zn as MMC and with pure composites metals of Cu-Zn composites. mixed manual mortar then pressed at (5 ton) for 15 min by using a hydraulic pressing which called a dry pressing.
During the sintering temperature raised up to 950̊Cfor (2 hr), then (P.L) burned at 950̊C which consist (natural materials like (lignin- cellulose and hemicelluloses) materials that appear due to HPLC test that convert to carbon since firing process and combined with the oxygen cause to CO2 gas that raises up to air and leaves the number of pores.
The additives natural that is a grounded palm leaves were cut to small parts then milled by using electrical mortar to get a fine powder which have a grain size (less than 0.75 𝜇m) which result by sieving process and added on to three ratios (10%-20%-30%) of 80%Cu-20%Zn as MMC and with pure composites metals of Cu-Zn composites. mixed manual mortar then pressed at (5 ton) for 15 min by using a hydraulic pressing which called a dry pressing.
During the sintering temperature raised up to 950̊Cfor (2 hr), then (P.L) burned at 950̊C which consist (natural materials like (lignin- cellulose and hemicelluloses) materials that appear due to HPLC test that convert to carbon since firing process and combined with the oxygen cause to CO2 gas that raises up to air and leaves the number of pores.
Online since: August 2006
Authors: Y. Nishihata, Isao Tan, Hirohisa Tanaka, Jun'ichiro Mizuki, Mari Uenishi, Masashi Taniguchi
By the self-regenerative
function, the intelligent catalyst can suppress the
grain growth of the precious metals, even in a high
temperature exhaust gas, and it maintains high
activity for a long period of time (Figs. 2, 3)
[3].
K-edge Ageing treatment Shell (Bond) Weight (Wshell) Coordination number Interatomic distance (nm) Debye-Waller factor (x10 -4 nm 2) Discrepancy factor (%) 800-O Pd-O 1 6* 0.2038(5) 0.58(3) 3.9 Pd-Fe/Pd-Pd 0.44 6*/6* 0.2683(3) 0.64(4) 800-OR Pd-Pd 0.20 12* 0.2743(1) 0.64† 8.6 Pd 800-ORO Pd-O 1 6* 0.2038(5) 0.65(3) 8.9 Fig.5.
Since the sum of two shell-weights does not amount to 1, shortage of coordination number is considered to be the cause.
As the result, grain growth of precious metal is suppressed in a very small particle diameter.
K-edge Ageing treatment Shell (Bond) Weight (Wshell) Coordination number Interatomic distance (nm) Debye-Waller factor (x10 -4 nm 2) Discrepancy factor (%) 800-O Pd-O 1 6* 0.2038(5) 0.58(3) 3.9 Pd-Fe/Pd-Pd 0.44 6*/6* 0.2683(3) 0.64(4) 800-OR Pd-Pd 0.20 12* 0.2743(1) 0.64† 8.6 Pd 800-ORO Pd-O 1 6* 0.2038(5) 0.65(3) 8.9 Fig.5.
Since the sum of two shell-weights does not amount to 1, shortage of coordination number is considered to be the cause.
As the result, grain growth of precious metal is suppressed in a very small particle diameter.
Online since: June 2022
Authors: Duy M.P. Vo, Hung Le Xuan, Gerald Hoffmann, Cornelia Sennewald, Andreas Nocke, Chokri Cherif
The fine-grained cementitious matrix for the tested TRC specimen was specifically designed for high-strength strain-hardening cement-based composite (SHCC), being made with short HDPE fibers (DSM, Netherlands) with a diameter of 0.02 mm and a fiber length of 6 mm.
Table 1: Mixture composition of the high strength, fine-grained cementitious matrix Components kg/m³ CEM I 52.5R-SR3/NA 1460 Silica Fume 292 Quartz Sand (0.06-0.2 mm) 145 Super Plasticizer 45 Water 315 HDPE Fibres (Dyneema®) 10 Electromechanical characterization.
Acknowledgment The authors express their gratitude to the Deutsche Forschungsgemeinschaft (DFG – German Research Foundation) for the financial support provided in the framework of the Research Training Group GRK 2250 “Mineral-bonded composites for enhanced structural impact safety”, project number 287321140.
Nocke, Influence of thickness ratio and integrated weft yarn column numbers in shape memory alloys on the deformation behavior of adaptive fiber-reinforced plastics, Composite Structures 215 (2019) 493–501
Table 1: Mixture composition of the high strength, fine-grained cementitious matrix Components kg/m³ CEM I 52.5R-SR3/NA 1460 Silica Fume 292 Quartz Sand (0.06-0.2 mm) 145 Super Plasticizer 45 Water 315 HDPE Fibres (Dyneema®) 10 Electromechanical characterization.
Acknowledgment The authors express their gratitude to the Deutsche Forschungsgemeinschaft (DFG – German Research Foundation) for the financial support provided in the framework of the Research Training Group GRK 2250 “Mineral-bonded composites for enhanced structural impact safety”, project number 287321140.
Nocke, Influence of thickness ratio and integrated weft yarn column numbers in shape memory alloys on the deformation behavior of adaptive fiber-reinforced plastics, Composite Structures 215 (2019) 493–501
Online since: December 2013
Authors: Megha Mahabole, Manjushree Bahir, Rajendra Khairnar
The FTIR spectrum is recorded in the wave number range of 1600–500cm−1 with a resolution of 4cm-1.
The average grain size of Mn-HAp samples, before and after incubation, is found to be in the range of 40-50 nm.
It is observed that longer the incubation duration, more is the number of particulates and larger is the size of grown apatite agglomerate particles.
Generally, ionic materials show two different arcs corresponding to grain polarization in lower frequency region and bulk properties in upper frequency region.
The average grain size of Mn-HAp samples, before and after incubation, is found to be in the range of 40-50 nm.
It is observed that longer the incubation duration, more is the number of particulates and larger is the size of grown apatite agglomerate particles.
Generally, ionic materials show two different arcs corresponding to grain polarization in lower frequency region and bulk properties in upper frequency region.
Online since: May 2013
Authors: Shi Ming Zhang, Suo Jiong Xu, Xu Ji Yuan, Jun Xi Zhang, Tian Tian
Results show the grain size of FePO4 particles sintered at 460℃ and 380℃ for 3h ranges from 10nm to 20nm, and the crystal structure is amorphous.
The discharge capacities versus cycle number curves of FePO4 cathode material sintered at different temperatures(380℃, 460℃, 550℃, and 650℃) in the range of 2.0- 4.2V at 0.1Cand 0.3C are displayed in Fig.5 (b).
(b) Variation of discharge capacities versus cycle number of FePO4 samples sintered at different temperatures at 0.1C and 0.3C.
The discharge capacities versus cycle number curves of FePO4 cathode material sintered at different temperatures(380℃, 460℃, 550℃, and 650℃) in the range of 2.0- 4.2V at 0.1Cand 0.3C are displayed in Fig.5 (b).
(b) Variation of discharge capacities versus cycle number of FePO4 samples sintered at different temperatures at 0.1C and 0.3C.
Online since: October 2010
Authors: Jian Long Kuo, Chun-Cheng Kuo
The SMT industry's products on the number of residual tin beads are certain norms.
So we focused on the study of literature for some of tin beads resulted in a large number of factors and residual principle lie, in Ning-Cheng Lee, the study that caused large tin beads of reasons solder of SMT particle size, Opening plate design, welding pad size and welded to the impact of such factors curve [2].AIM in the literature that caused tin beads is a key element plate opening size and shape of solder of SMT printing parameters, the viscosity solder of SMT back solder of SMT welding curve and particle size and other factors all affect tin beads have a lot of factors [3].
,However, in recent years due to patent protection has expired gradually, coupled with the semi-finished products and technical advances, to meet the high-end technology development, low-cost, component performance and the overall package size of demand, Grain and in particular high I/O, high-frequency demand, Minute crystal technology have become high-end package the best choice [5][6].
Discussion This section is the application of the Taguchi method (Taguchi method) in the Minute crystal system - which is a tin slag residue quality improvement and the best design parameters, the experimental design is the use of impact surface mount technology manufacturing process to design factors, and the system under way after the residue in the passive components on the tin beads number and size as a basis for assessment (Figure 9 below), because too many beads tin residues in flux-cleaning system, is likely to be washed down to the internal chip, making the chip caused the tin-lead Bump short circuit, which will affect product quality.
Barajas, Process Control in High-Noise Environments Using a Limited Number of Measurements,School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA, 30332, 2002
So we focused on the study of literature for some of tin beads resulted in a large number of factors and residual principle lie, in Ning-Cheng Lee, the study that caused large tin beads of reasons solder of SMT particle size, Opening plate design, welding pad size and welded to the impact of such factors curve [2].AIM in the literature that caused tin beads is a key element plate opening size and shape of solder of SMT printing parameters, the viscosity solder of SMT back solder of SMT welding curve and particle size and other factors all affect tin beads have a lot of factors [3].
,However, in recent years due to patent protection has expired gradually, coupled with the semi-finished products and technical advances, to meet the high-end technology development, low-cost, component performance and the overall package size of demand, Grain and in particular high I/O, high-frequency demand, Minute crystal technology have become high-end package the best choice [5][6].
Discussion This section is the application of the Taguchi method (Taguchi method) in the Minute crystal system - which is a tin slag residue quality improvement and the best design parameters, the experimental design is the use of impact surface mount technology manufacturing process to design factors, and the system under way after the residue in the passive components on the tin beads number and size as a basis for assessment (Figure 9 below), because too many beads tin residues in flux-cleaning system, is likely to be washed down to the internal chip, making the chip caused the tin-lead Bump short circuit, which will affect product quality.
Barajas, Process Control in High-Noise Environments Using a Limited Number of Measurements,School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA, 30332, 2002
Online since: September 2012
Authors: Fang Yuan Chen, Dong Song Zhang, Zhi Ying Wang
Researches [3,4] presented a scheduling strategy for real-time tasks with both timing and cache space constraints, which allows each task to use a fixed number of cache partitions.
We propose a finer-grain approach based on lifetime and instruction fetching timing to obtain runtime inter-core interferences.
The status of instruction a1 is still hit. (2) As depicted in Figure 1(b) and W Core1(case2) in Table 1, The number of interferences is 2 and the interfering instruction are changed to c3 for a3 and c5 for a5.
As abovementioned, whether runtime inter-thread interferences occur or not and the total number of runtime inter-thread interferences are all dependent on IFT.
Because we aim to analyze run-time inter-core interferences for inconsecutive concurrent programs, so we construct two inconsecutively running threads based on matmul whose big code size can discourage interferences caused by address mapping. 1) First, in order to evaluate the validation and tightness, we triple the number of loops, named as matmul-3.
We propose a finer-grain approach based on lifetime and instruction fetching timing to obtain runtime inter-core interferences.
The status of instruction a1 is still hit. (2) As depicted in Figure 1(b) and W Core1(case2) in Table 1, The number of interferences is 2 and the interfering instruction are changed to c3 for a3 and c5 for a5.
As abovementioned, whether runtime inter-thread interferences occur or not and the total number of runtime inter-thread interferences are all dependent on IFT.
Because we aim to analyze run-time inter-core interferences for inconsecutive concurrent programs, so we construct two inconsecutively running threads based on matmul whose big code size can discourage interferences caused by address mapping. 1) First, in order to evaluate the validation and tightness, we triple the number of loops, named as matmul-3.