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Online since: July 2012
Authors: Mariusz Kostrzewski, Rafał Melnik
Signals are registered on defined distances (one-kilometer-long), i.e. the measurement is carried out during running on defined distances, registered data are formed into a data package which is sent to the operator's server.
Although there can appear some differences between signals from nominal and damaged vehicle (Fig. 5, 6), the parameters differ slightly, no matter whether this is connected to a loss of damper or reduction of stiffness.
On section 2nd and 4th section both parameters may suggest fault in suspension, what was not correct. 0 0,09 0,18 0,27 0,36 0,45 nom_C1z dam_C1z [m/s2] 1 2 3 4 Section Figure 9 – Vertical acceleration - RMS, passenger car, v = 100 km/h 0 0,9 1,8 2,7 nom_C1z dam_C1z [m/s2] 1 2 3 4 Section Figure 10 – Vertical acceleration – CF, passenger car, v = 100 km/h 0 0,04 0,08 0,12 0,16 0,2 nom_C1y dam_C1y [m/s2] 1 2 3 4 Section Figure 11 – Lateral acceleration - RMS, passenger car, v = 100 km/h 0 1 2 3 nom_C1y dam_C1y [m/s2] Section 4 3 2 1 Figure 12 – Lateral acceleration – CF, passenger car, v = 100 km/h The fault in case of passenger car – loss of secondary suspension damper – is more difficult to detect compared to reduction of stiffness.
There have to be prepared proper algorithms which would be used for calculation, data processing, and which would support decisions making related to the operation of rolling stock.
In simple words an algorithm which is a step-by-step method for analyzing of obtained data is needed.
Online since: March 2019
Authors: Ching Hua Hung, Lan Phuong Nguyen, Ming Hui Wu
The temperature rise caused by ultrasonic vibration not only leads to the reduction of required embossing force, but also to improve the micro-replication ability of the glass.
Experimental data showed that the glass has almost fill fully into the pyramid root.
Experimental data show that root dimension of almost pyramids is satisfied as comparing with desired one (30 µm) while height dimension is not easy to be achieved.
Data from Table 1 and 2 illustrates that the faster the embossing speed, the lower the pyramid height.
Experimental data illustrated that with the same speed, ultrasonic vibration could improve the pyramid height about 18 %.
Online since: October 2009
Authors: Hong Hai Xu, Yu Xia Zhao, De Wen Gao
When operating the NC machine by manual, the cutting parameters are determined by milling quantities manual, practical data or technics experience.
Another is choosing the best data among the quantified values that ensure minimum cost or the process time.
The middle zone of window is for calculation and finding some parameters data.
v /( z)=2.912/(11.167*8)=0.032mm/z n The output data are: =11.17r/s, cn fca =0.046mm/z, fc e Cutting parameters selection with castigatory function method.
The comparison of the results of three methods can be shown by processing the data, see Fig.2, Fig. 3.
Online since: July 2014
Authors: Xiao Le Wu, Zhi Qiang Ji, Ming Wei, Qi Meng Wu
In this paper, we increase the type of stimulus signal, then obtain the data under different pulse and amplitude conditions.
We select square wave and machine model ESD and the corresponding response data as training data.
Validation data we select 250ns, 630V square wave (EMP 1), 1035V machine model ESD (EMP 2), 485V metal body model ESD (EMP 3) and the corresponding response data.
Neural network modeling Model Identification.In order to reduce the amount of data and the gap between data, improve the efficiency and accuracy of network computing, we use 1/10 resampling and wavelet noise reduction.
Because EMP 1and EMP 2 are similar to training data, their predicted effect close.
Online since: November 2015
Authors: Luis Salcedo-Mejía, Luis Ramírez-Osco, Hans Cayo-Gonzales, Vladimir Arias-Arce
With these data, we observed that the addition of iron is not necessary in a stage adaptation when the mineral contain iron.
Increased oxidation-reduction potential after the first 5 days was observed, tests with 0 and 3 g/L Fe2+ were first to give change (360 mV – 570 mV).
Online since: April 2003
Authors: M.H. Lewis, Richard Dobedoe, N. Gajom, A.H. Jones
Hardness follows the normal trend, increasing with α' content, with an accompanying reduction in toughness due to loss of the bridging/pull-out contribution of prismatic β', with further reduction during crystallising heattreatment.
The small reduction in α'/β' ratio for mixed cation systems may be related to the observed change in α' composition (mainly the value of n) on the tie line with the β' phase.
However, in both single and mixed cation systems there is a significant reduction in α' content, with the appearance of mellilite (M') in both Gd/Nd and Yb/Nd microstructures, in place of MAlO3.
Ball-on-disc wear data.
For example the surface roughness (Ra) of the BGSN standard increased during the test from 17 to 83 nm, whereas the Sialon-40 vol.% TiB2 showed a reduction in surface roughness from 37 nm to 17 nm.
Online since: August 2006
Authors: I.C. Howard, S.S. Ayvar, S.H. Hashemi, J.R. Yates
Suitable averaging (of shape) in the modelling of the notched bar data, and the companion averaging associated with the 2D model of the C(T) data provide a relatively fast way of transferring engineering data in the tests.
In the tensile tests, a transverse extensometer was used to capture the reduction of specimen diameter during the experiment.
From the plain bar specimens, true stress-strain data required for finite element computation was obtained.
Fig.7 shows the adjustment among the experimental and best fitted data for the plain and notch bars.
• They could not predict the data in a 3D model of the C(T) test; quite different values were needed to give a reasonable simulation of the C(T) data, but these values could not be used to simulate the plain and notched bar data.
Online since: July 2011
Authors: Jing Luo, Yang Ming Qian, Sheng Xin Weng, Huai Yong Li
Figure 1 Topology structure of communication via satellite system network Maritime Digital Medical Data Center.
With the use of centralized management technique of medical data, a standardized common data transmission interface has been established that can collect and integrate various maritime treatment platform data such as digital DR, CT and inspection equipment, B ultra, ECG, and monitoring instruments.
Figure 2 The local area network structure of marine medical treatment platform The overall modeling study of medical health data, is the foundation and core of setting up clinical data center.
With strict analysis and message construction technique, we can conduct uniform organization and storage of clinic data collected via various sources, following a standardized, structured, and expandable data model.
Figure 3 Data sharing and system interoperability scheme With the help of satellite-based communications for remote data exchange technology, remote high-definition audio and video data conversion and transmission technology, high-definition medical image remote diagnosis, remote collaborative data interoperability technology, it is possible to realize two functional components units, i.e., remote real-time HD unit and shore-based data sharing and system interoperability unit, thus to achieve remote video consultations, surgical guidance, pathological diagnosis, interoperability, data sharing, and medical imaging interoperability, etc..
Online since: March 2014
Authors: Si Qi Deng, Ming Zhang, Deng Yun Ma, Rui Pan, Fan Tao Fang
According to the results of measuring the wind speed site, binding studies of literature data, simulation and optimization of the impeller for fan, in order to determine the type of the selected impeller; analyzed by the mathematical model of the car to increase fuel consumption, this means economic results show generated is considerable.
For high-speed auto wake status quo power, this paper presents the design of a new wind power installations, and provide new ideas for the design of a vertical axis wind turbine, while enhancing people's awareness of energy conservation and emission reduction.
Select a series of discrete points within the study area were drag analysis, the data in Table 2: Table 2 Displacement and resistance difference Displacements/m Poor resistance ∆F/N Displacements/m Poor resistance ∆F/N 14 2.366 17 23.221 15 5.330 18 30.185 16 13.448 19 46.682 The resulting data into matlab to fit in, get ΔF s approximate relationship with ΔF = f (s),and s= v·t, so you can get:∆F =(1.973t4-4.666t3+4.131t2 – 0.619t + 0.2371)* 105 (N) Integration into the above equation was:∆Q= 1.1118*10-5 (L) About RMB 7.7824*10-5million, this time period generating capacity of 3.9 *10-5million.
First of all, the relationship between dynamic torque changes over time should be imported into Adams through Spline Spline linear data, then add friction and resistance moment, finally get the system output speed curve of change over time.
Online since: June 2014
Authors: Nor Mariah Adam, Qi Jie Kwong, Mohamad Afri Arsad
Based on the data collected from the field assessment, the thermal comforts indices with expectancy factor were calculated.
Therefore, the radiant cooling technology was introduced and it was found that this type of cooling technology was effective in reduction of the air conditioners’ operating cost [3-4].
The field measurements and data collection were conducted for a period of five days (15/10/2012 – 19/10/2012) at level 2 - level 6 of the building, where the thermal environment for these five floors was measured.
The thermal comfort parameters in the building were recorded by using a thermal data-logger.
Measurements were taken in every 5-minute interval, and all the measured field data was transferred to the portable computer in daily basis for further analysis.
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