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Online since: October 2010
Authors: Gui Xiong Liu, Xiao Bin Hong, Jian Long Xu
Dynamic Interpretation Method of XML Configuration Strategy for IP Mode Measurement and Control System Xiaobin HONG a, Guixiong LIU b, Jianlong XU c The Department of Mechanical & Automobile Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China a mexbhong@scut.edu.cn, bmegxliu@scut.edu.cn, cxujianlong@126.com Keywords: XML, Configuration strategy, DOM, IMMCS Abstract.
Differently, many factors should be considered in the transformation for the component logic relationship, because the performance of same logic relationship has various implementation scheme.
Save property information of CMCS i++ Childnode is DataSources?
When executing strategy dynamically, each equipment's variable is picked up from EquipMap to check its type property, in order to ensure whether the equipment needs to be calculated.
All the equipments' variables are scanned to ensure whether the current equipment's value is affected by the active sensor.
Online since: April 2008
Authors: Yong Tang Li, Shi Wen Du
When designing hydraulic valve, prototype performances test is done on computer with the computational hydrodynamics method .The properties of hydraulic valve and negative phenomena which are derived from internal flow, such as vortex flow, secondary flow, boundary layer separation, wake, noise can be predicted in drawing design stage.
If not, it will affect the blow frequency of electrical-hydraulic hammer
However, in consideration of such factors as the symmetry characteristics of mobile and computing time and the feasibility it can be approximated two-dimensional flow. 4) No the axial velocity component. 0 x y zf f f= = = , xf , yf , zf represent mass unit components along x , y , z axis; 5) Incompressible fluid 6) Flow is steady flow, and velocity does not change with time. 7) Fully developed laminar flow 2.2Basic equations The fluid inside hydraulic valve is incompressible viscous fluid.
Measurement on Pressure Distribution of Non-Circular Opening Spool Valve, Chinese Journal of Mechanical Engineering.
Online since: August 2011
Authors: Yang Xue, Hai Yan Zhuang, Hui Zhi Li
The experimental parameters that affect the extraction effi{TTP}-1279 ciency of Pb ions from aqueous samples were evaluated and optimized.
The hard bulk polymer was grounded in a mechanical mortar and wet-sieved to 30 -80 μm particle size.
In order to optimize conditions for obtaining high effi{TTP}-1277 ciency in preconcentration of neodymium ions by the proposed IIP, it is necessary to adjust several factors including nature and volume of eluent, pH, weight of polymer, preconcentration and elution time.
The detection limit was 1.6 µg L−1.These results indicated the suitability of the Pb–DHCB imprinted polymer for selective SPE and determination of Pb2+ in environmental water Table 3 Recovery studies of trace Pb(Ⅱ{TTP}8545 ) determination in various real samples(n=6) Sample Added /[µg L-1] Found /[µg L-1] R.S.D /[%] Recovery /[%] Waste water Huang River water Drinking water 0 60 0 60 0 60 34.8 92.0 12.3 75.9 5.8 68.7 2.83 2.89 3.11 3.96 2.12 3.89 96.9 98.3 104.8 Conclusion The study above indicated that the synthesized Pb2+-IIP had stable chemical properties, firmly rigid configuration, relatively strong templet affinity and quite good selectivity.
Online since: April 2012
Authors: Ming Chen, Guo Qiang Guo, Zhi Qiang Liu, Xiao Hu Zheng
Investigation on surface grinding of Ti-6Al-4V using minimum quantity lubrication Guoqiang Guo1, a, Zhiqiang Liu1, b, Xiaohu Zheng1, c and Ming Chen1,2, d 1School of Mechanical Engineering, Shanghai Jiao Tong University, P.
That would cause skin disorders and affect the human dietary and respiratory system.
Because of titanium alloy’s poor thermal properties, grindabilty of Ti-6Al-4V (Ti-6-4) imposes lots of constraints.
This proves the improved lubrication property of MQL oil, it could penetrate into the grinding interface and form a durable tribofilm to improve the sliding, plowing and cutting performance of each grain [2, 10].
Combinations of these factors result in a decrease in workpiece surface roughness.
Online since: December 2025
Authors: Zera Lionovna Beslaneeva, Islam Arbievich Magomedov, Movsar Musaevich Matygov
This work carried out 41 simulations to assess performance under various conditions, taking into account factors like leg length, number of legs, acting force, and rotor speed.
Various graphs were calculated to see how these parameters affect stability, distance passage, and failure rates.
The issue of the slippage can also be solved by implementing different materials with different material properties, most importantly with varying coefficient of friction.
Lecture Notes in Mechanical Engineering.
Oh, Barrier-Free Wheelchair with a Mechanical Transmission, Applied Sciences, (2021)11(11):5280
Online since: May 2004
Authors: D. Chiavacci
Colour pastes based just on such glycols are generally affected by an annoying problem.
The affinity of these polymers for the solid particles surfaces prevents re-aggregations following physics mechanism as sterical and colloidal protection Other useful properties are achieved introducing synthetic polymers in medium formulations
• Pseudo-plastic or true plastic rheologic behaviour, necessary to print with high definition; • liquid phase binding, with possibility to modulate drying time; • binding of the printed colour so preserved by mechanical stress given by the following application; • affinity with the liquid phase with decreasing evaporation rate and capillary draining.; • better consistency of the colour paste and no sedimentation; Figure 1 shows the comparison of a screen printing medium containing polymers versus Polyglcol 400.
Capillary action driven by the gap between the cylinder and the tile surface and, most important, suction carried on by the capillarity of the raw glaze surface This balance is ruled by a sum of factors: � Affinity of the ink for the silicon cylinder, depending on: • Size and kind of engraving
Online since: January 2013
Authors: Yu Jin, Wei Jian Yi, Lan Hu
Therefore, the component analysis of arch can help explore the force change rule, and grasp further its mechanical properties and guide practical engineering construction.
The first-order mode The second-order mode The third-order mode The forth-order mode The fifth-order mode The sixth-order mode Fig.3.The first six order buckling modes figures of prestressed arch-supported net shell structure The proportionality factor of the first-order modal is 66.75 as the critical buckling load. 2.The first six order buckling modes figures of non-prestressed arch-supported net shell structure are as shown in figure 4.
The first-order mode The second-order mode The third-order mode The forth-order mode The fifth-order mode The sixth-order mode Fig.4.The first six order buckling modes figures of non-prestressed arch-supported net shell structure The proportionality factor of the first-order modal is 0.86 as the critical buckling load. 3.Buckling modal contrastive analysis of two kinds of arch-supported net shell structures By comparing the first-order mode of two kinds of arch-supported net shell structures, there are some differences on the features of buckling shapes.
The destruction of part numbers or instability collapse of local area will be smaller and won't even affect the whole structure.
Online since: December 2010
Authors: Jin Ping Ou, Dong Sheng Qiao
Introduction Damping is one of the most important factors in predicting the oscillation of a moored offshore platform.
Hydrodynamic drag and friction damping is significantly affected by a floating platform besides the internal damping caused by material properties.
Zhao: Application of ABAQUS 6.6 in mechanical engineering (China Waterpower Press, Beijing 2007).
Online since: October 2011
Authors: John A. Akpobi, M.H. Oladeinde
There are a number of variables in the drawing process namely, work-material properties, reduction in cross-sectional area, die angle, drawing speed, and lubrication.
The performance of the operation is affected by a change in one or more of these variables.
quadratic Stress (N/mm2) Exact 5.00000 75.70102 75.70109 73.21959 5.03125 70.90760 70.90765 68.73049 5.06250 66.12279 66.12282 64.22958 5.93750 61.34646 61.34652 59.7169 5.12500 56.57862 56.57866 55.1925 5.15625 51.81911 51.81918 50.65643 5.18750 47.06798 47.06801 46.10871 5.21875 42.32503 42.32510 41.54939 5.25000 37.59035 37.59038 36.97851 5.28125 32.8637 32.86378 32.39611 5.31250 28.14523 28.14524 27.80223 5.34375 23.43462 23.43471 23.1969 5.37500 18.73211 18.73211 18.58018 5.40625 14.03732 14.03741 13.95209 5.43750 9.350521 9.350526 9.312667 5.46875 4.671316 4.671408 4.66196 However, extensive numerical experimentation showed that the accuracy of the method is oberved to increase for lower values of coefficient of friction Specifically, numerical experimentation revealed that a mesh of 8 C0 quadratic isoparametric elements and coefficnet of friction (µ) equal 0.1, produced a higher error estimate compared to a mesh with similar mesh density but coefficient of friction reduced by a factor
Globally, the maximum error using µ equal 0.1 compared to that using 0.01 shows that the former is higher by a factor over 15 Simulating the wire drawing operation using C0 cubic isoparametric elements produces more attractive results as shown in Table 2 Specifically, a maximum absolute error of 0.38µN/mm2 is achieved using a mesh of 3 C0 cubic isoparametric compared to 2.48N/mm2 for a mesh of three C0 quadratic isoparametric elements for µ = 0.1 and α = 160.
Rzepka,Analysis of the influence of back pull during drawing of Aluminum wires, International journal of materials and product technology, 15(6) (2000)518 – 534 [8] Phelan, P., Brandon, J. and Hillery, M., Central burst analysis of the wire drawing process using accumulated damage Parameter, Journal of Mechanical Engineering Science, vol 215, no 11, 1313 – 1319, 2001 [9] M.
Online since: October 2004
Authors: Lasar S. Shvindlerman, Günter Gottstein, Yuri Estrin
(7) The concentration enhancement factor λ can be fairly large.
When the vacancy generation mechanism is operative, Nabarro-Herring creep will be affected through a decrease in grain growth rate and also immediately, through vacancy supersaturation due to grain growth (λ >> 1).
What can be seen from the above equations is that grain growth results in an increase of the initial creep rate for diffusion creep by a large factor of λ, as compared with the reference creep rate in the absence of grain growth.
On Mechanical Properties of Nanostructured Materials and Nanocomposites, MRS Fall Meeting, Boston, 1-5 Dec. 2003 (in press).
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