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Online since: January 2013
Authors: Pavel Dzitac, Abdul Md Mazid
· Always check data validity and integrity.
· Downloads setup data that contains the pallet loading configuration to PLC
This simplifies even further layer generation and contributes to reduction of operation complexity.
On start-up the PLC initialises the control data, processes communications with other devices on the network, reads the status of the inputs, solves the control program logic and updates the status of the outputs as dictated by the result of the control logic.
Typical PLC scan cycle Conclusion and Benefit to Industry As the complexity reduction and robustness improvement project has been implemented the company started to see tangible commercial benefits.
Online since: February 2012
Authors: Xiao Ping Zhang, Yang Wang
M. et al. from RT-SP Computer Based Systems company in Serbia comprehensively took advantage of localization methods based on acoustic energy, time of arrival and angle of arrival, and proposed acoustic localization method based on MLE using those three kinds of measured data [7].
Experimental results showed its localization effects were better rather than only using any one of the three kinds of data.
As we know, both of the parameters and affect signal-to-noise ratio of measured data of sensor nodes.
That is, reduction of parameters or increase of parameter will result in signal-to-noise ratio reduction.
There are 72-76 locations where RMSE values by ASL-LRM method are less than MLE method among the 100 test locations with reduction by 60%-74% at most.
Online since: December 2019
Authors: Wim van Paepegem, Wouter de Corte, Jordi Uyttersprot
Although available, experimental data is needed to validate, calibrate and corroborate the numerical finite element (FE) models.
Numerical finite element (FE) models are available but these need to be validated, calibrated and corroborated by experimental data.
At least five specimens per laminate were tested to acquire statistically significant data.
This reduction in stiffness is primarily seen at the overlap locations, since the onset of failure mainly starts at a free edge.
Although this reduction is significant at approximately 50% in these tests, the authors are convinced that in a primarily stiffness, robustness [5] and ease of construction based design, this reduction is still acceptable.
Online since: September 2014
Authors: Marcin Hojny
These measurements were then compared to the material response based on an ABAQUS finite element (FE) simulation of the test which modeled the material behavior using tabular data and included the effects of temperature, strain and strain rate.
However, because of the high-melting temperature and other related difficulties, there is relatively less amount of experimental data and investigations available on steels.
The ductility recovery temperature (DRT) is the temperature at which the ductility of the material (characterized by reduction of area) reaches 5% while it is being cooled.
During the tests each sample was subjected to 10 mm reduction of height.
Using this brand new technology, the ATOS Triple Scan produces a high accuracy and improved measurement of shiny surface, complete data on complex components with deep pockets or fine edges such as turbine blades, reducing the number of individual scans and resulting in a simple handling.
Online since: August 2017
Authors: Atthakorn Thongtha, Tanapon Patanin, Surirat Ketchaona, Jutarud Wattana
All data was recorded at 5 min intervals using a data logger.
Data was recorded continuously over 24 h in real ambient conditions.
This result may be caused by the incorporation of Portland cement causing a reduction of the porosity and an increase in the density of the lightweight concretes [11,12].
This leads to a reduction of heat transfer into the inner section of the improved testing room, indicating a better insulating effect of the LWC.
Thongtha, Phase change material coating on autoclaved aerated lightweight concrete for cooling load reduction, Mater.
Online since: October 2015
Authors: Mohd Shaiful Zaidi Mad Desa, Agus Arsad, Nor Nisa Balqis Mohammad, Azman Hassan
PLA/NR exhibited the lowest Tg (53.9 oC) while the PLA/CSR showed slight reduction of Tg (56.2 oC) as compared to pure PLA (56.3 oC).
The drastic reduction of Tg in PLA/NR blend was attributed to a very low Tg of the NR component (-70oC).
The reduction of Tg for all PLA/rubber blends showed strong influence of rubbery properties of NR, ENR and CSR hence explains the good toughening effect displayed in the blends.
Figure 1: DSC thermograms for 2nd heating Figure 2: TGA curves for PLA and of PLA and PLA/rubber blends PLA/rubber blends Table 2: DSC data of PLA and PLA/rubber blends Tg (oC) Tm1 (oC) Tm2 (oC) DH(J/g) Cc (%) PLA 56.3 - 156.2 22.2333 23.91 PLA/NR 53.9 145.5 156.1 19.3081 21.85 PLA/ENR 54.6 146.9 156.2 19.1612 21.69 PLA/CSR 56.2 148.4 155.5 19.3123 21.86 Table 3: TGA data of PLA and PLA/rubber blends T10 (oC) T20 (oC) PLA 321.3 330.9 PLA/NR 275.5 292.3 PLA/ENR 269.6 285.2 PLA/CSR 313.8 331.2 Thermogravimetric analysis As shown in Figure 2, the thermal degradation of PLA/rubbers for all type of rubber shows two steps of degradation.
According to data in Table 3, at T10 the PLA/ENR degraded first at 269.6 oC followed by PLA/NR at 275.5 oC and PLA/CSR was slowly degraded at 313.8 oC which were below the T10 of pure PLA (321.3 oC).
Online since: April 2013
Authors: M. Abdel-Rahman, Emad A. Badawi, A.A. Ibrahim, M. El-Sayed, Ahmed G. Attallah, A.A. Akel, Atef E. Ali
Figure 5 Crystallite size variation with the thickness reduction of 5251 Al alloy With the introduction of a sufficient concentration of open volume defects (e.g. about 10 ppm vacancies) a large fraction of thermalised positrons can interact with electrons and become trapped in defects.
The first systematic data on the dependence of the e+ lifetime on the mean grain size has been introduced by Lynn et al. [10] on polycrystalline Cu, which interpreted the results in terms of e+ trapping at grain boundaries as did Leighly [11].
For large grain sizes, the mean lifetime t varies linearly with the inverse grain size l-1, in agreement with most of the available experimental data [13].
Positron Annihilation Data It is due to Hidalgo and de Diego [19] that the mean crystallite size l and the mean lifetime t is related to t f and t t by a simplified model which leads to the relationship.
Figure 8 Mean crystallite size variation with the thickness reduction measured by XRD of 5251 Al alloy 5.
Online since: May 2005
Authors: Tsunenobu Kimoto, Hiroyuki Matsunami, Yuki Negoro
All of the experimental data (see symbols) are located above the dashed curve, indicating that the ionization energy of Al acceptors in those samples is smaller than 180 meV.
It should be noted that both experimental data from epilayers and implanted layers take much smaller value than the recent calculation for device simulation [9] based on the semi-empirical equation [10].
To obtain a more reasonable analytical expression for the hole mobility, more experimental data, especially for high free-hole concentrations in the range of 1019-1020 cm-3 have to be used to adjust the parameters in the semi-empirical equation.
Since the reduction of implantation temperature is of great importance from the viewpoint of productivity, a minimum implantation temperature at which sufficient electrical activation is achieved with subsequent annealing should be assessed.
Further reduction of sheet resistances in high-dose Al+-implanted SiC should also be realized by increasing hole mobility.
Online since: June 2014
Authors: Ahmed Jaffar, Yusoff Noriah, Nurul Syuhadah Khusaini
This paper is perhaps the first attempt, in terms of analyzing data using Rasch Model, with respect to LM implementation in Malaysia, specifically in food and beverages industry.
Rasch Model analysis were performed to analyze the data using Winstep version 3.72.3.
For 53 person response and 108 items, 3213 data points have been generated.
Customer involvement in quality programs CR8 – Customer involvement in product design Human Resources HR1; HR4; HR6; HR8 – Multitasking workers; Worker involvement in continuous quality improvement programs; Team decision making; Innovative performance appraisal and performance related pay system HR2; HR7 – Expansion of autonomy and responsibility; Worker training HR3 – Few levels of management HR5 – Work time flexibility Planning and Control PC2; PC4; PC6 – Visual control on the shop floor; Kanban/pulled flow control; Synchronized scheduling PC1; PC5; PC8 – Overlapped production; Heijunka / Levelled production; Under capacity scheduling PC7 – Mixed model scheduling PC3 – Small lot sizing Product Design PD1 – Parts standardization PD2 – Product modularization PD4 –Design for manufacturability PD5; PD6 – Phase overlapping; Multifunctional design teams PD3 – Mushroom concept Process & Equipment PE8 – Order and cleanliness in the plant PE7 – Process capability PE9 – Continuous reduction
of cycle time PE1; PE4 – Set up reduction; Rigorous preventive maintenance PE2; PE5 – Flow lines; “Error-proof” equipment PE6 – Progressive use of new process technologies PE3 – Cellular manufacturing Supplier relationship SR6 – Quality at the source SR3; SR5; SR9 – Supplier involvement in quality improvement programs; Long term contracts; Total cost supplier evaluation SR1; SR4; SR7; SR8 – JIT delivery by suppliers; Supplier involvement in product design and development; Early information exchange on production plans; Reduction of number of sources and distances SR2 – Open orders References [1] CIA World Factbook, Central Intelligence Agency, USA, [Online].
Online since: September 2014
Authors: Bo Han Yang, Xin Qun Feng
According to the Shanghai annual solar radiation data, using the histogram method and analyze the regional characteristics of Shanghai area, provide reference and basis for residential building solar visor design.
Integration between solar energy and building system, should be based on guarantee under the premise of building indoor comfortable, follow the principle of integrity, coordinate the visual and functional relationship between solar system and architecture system so as to achieve the task of building energy conservation and emissions reduction.
Fundamental purpose of integration building system is to reduce excess energy consumption, greatly limit to reduce energy consumption, energy conservation and emissions reduction, it is also the starting point of the sustainable architecture design.
The integration between building system and solar power system can be done by three different goals: first, the solar system and construction system must work together, or at least can not conflict each other, On the basis of meet the basic comfortable requirements, reach the building energy conservation and emissions reduction; Second, they must coexist in a building form; Finally, it should also be solved by the means of ecological aesthetics to install the solar visor; These three goals can be summarized as the integration process of performance , physical and visual.
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