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Online since: May 2014
Authors: Na Lv, Zhi Quan Feng, Yan Huang, Jing Liang Peng
With the rapid development of the motion capture technology, MoCap data are constantly accumulated.
Above all, they are very robust to variations in the motion capture data stream.
Dimension reductionbasedmotion retrieval MoCap data are very high dimensional data both in the spatial domain and in the temporal domain.
SOM.Self-Organizing Map (SOM) is a kind of dimension reduction technique for the visualization of high-dimensional data.
PCA-based walking engine using motion capture data[C].
Online since: September 2013
Authors: D. Sattianadan, M. Sudhakaran, E. Rekha
MAXIMUM LOSS REDUCTION AND VOLTAGE PROFILE IMPROVEMENT WITH PLACEMENT OF HYBRID SOLAR-WIND SYSTEM E.
Abstract: Distributed generators(DG) are much beneficial in reducing the losses effectively compared to other methods of loss reduction.
Test results indicate that PSO method can obtain better results on loss reduction and voltage profile improvement than the simple heuristic search method on the IEEE33-bus and IEEE 90-bus radial distribution systems.
Thomos Ackermann et al[1] .The benefits of distributed generation can be classified into Technical benefits(reduction in line loss, improvement in voltage profile, system reliability), Economic benefits(lower operating costs, enhanced productivity), Environmental benefits(reduced emissions of pollutant, encouragement to renewable energy based generation).
PSO algorithm related with DG: Step 1: Input line and bus data, and bus voltage limits.
Online since: January 2013
Authors: Chia Jui Chiang, Yong Yuan Ku, Chih Chieh Chen, Chih Cheng Chou
Average NOx reduction rates of 78.5% and 60% are achieved for the ESC and ETC tests respectively.
To achieve this, a minimal NOx reduction rate of 50% is necessary.
Experimental data from 32 runs of European Stationary Cycle (ESC) and European Transient Cycle (ETC) demonstrate the reliability of the rule-based SCR control strategy.
Average NOx reduction rates of78.5% and 60 % are achieved for the ESC and ETC tests respectively.
Marti., “NOx-reduction in diesel exhaust gas with urea and selective catalitic reduction,” Comb.
Online since: December 2014
Authors: Bo Liu, Yong Hao Liao
Because the vibration signals of the centrifugal fan contains a variety of complex signal noise.Effective extracting fault vibration signal characteristic information is a prerequisite for correct diagnosis.With the development modern signal processing and analysis technology, more and more fault information needs to be extracted.How to choose the most effective fault characteristic is an important and difficult problem to solve[1].MLM is a kind of reduction method of nonlinear data dimension[2~3].It can effectively find links and regularity of high-dimensional data and fully exploit the data of useful information and features.
Typical fault vibration of centrifugal fan The experimental data from the Huadian Electric Power Research Institute of Fluid Machinery Laboratory.
Feature extraction of centrifugal fan vibration Manifold learning is such a dimension reduction tool, that can be saved under the condition of nonlinear information to compress feature information.In this paper, experimental results for the raw data, these samples will be treated as an input LLE algorithm.Embedding dimension were taken as 1, 2, 3, 4 learning and studied.
Format learning samples and make the classifier for training. 20 sets of data extracted from the characteristics of each sample in a failed state after completion of training.
Nonlinear dimensionality reduction by locally linear embedding [J].
Online since: May 2012
Authors: Anish Roy, Vadim V. Silberschmidt, Dk Nurdiyana Pg. Norddin, Farrukh Makhdum
The thrust force data was recorded using Picoscope™, which was further processed into Matlab after converting them into .txt format.
Prior to the tests, the dynamometer was calibrated using weighs to ensure a linear response between axial forces applied and data shown on PC display.
The thrust-force reduction was calculated to investigate the effectiveness of UAD in relation to CD.
In the view of force reduction caused by UAD, from 260 rpm to 540 rpm, a general trend of increase in force reduction can be observed with an increasing speed; the maximum force reduction was achieved at 1700 rpm.
Comparative thrust force Speed (rpm) Force (N) Average force reduction (%) CD UAD 40 345±6 31± 4 91 5.
Online since: April 2012
Authors: Kyu Seok Han, Jong Tae Park
In order to the effect of temper rolling reduction on the strengthening of Goss texture, temper rolling reduction was changed in the range of 2% to 8%.
A mechanism of grain growth during SIBM is suggested from our experimental data.
It can be found from observed EBSD data that the Goss grains have the lowest stored energy in all temper-rolled specimens, which is confirmed by average image quality value in EBSD measurements.
A mechanism of texture development during SIBM can be suggested based on obtained experimental data.
It can be found from observed EBSD data that the Goss grains have the lowest stored energy in all temper-rolled specimens, which is confirmed by average image quality value in EBSD measurements.
Online since: November 2020
Authors: Anna Kuwana, Yasunori Kobori, Haruo Kobayashi, Minh Tri Tran, Yi Fei Sun
No need of hysteresis comparator keeps the high frequency response and using the low ESR of the capacitor makes the output ripple very small. 1.0 [µs] I O VD I L V FB Vr Vo VD VFB’ Fig.2-8 Circuit of ripple injection method Fig.2-9 Waveforms of ripple injection converter (a) Open-loop transfer function [From the data sheet written by Texas Instruments ] The open-loop transfer function Go(s) without the ripple injection circuit is explained in the next equations.
Fig. 3-14 shows the modified spectrum with EMI reduction.
The spectrum of the conduction noise with EMI reduction is 90 mV which is reduced to 9 % ( -21dB).
The spectrum peak level of the operating frequency is reduced from 2.7V to 0.21V, which is 22dB reduction.
Also the input current noise (conductive noise) is reduced from 1,000 mV to 90 mV (21dB reduction).
Online since: December 2025
Authors: Andrey N. Dmitriev, Mikhail M. Tsymbalist, Yulia E. Burova, Galina Yu. Vitkina
The three-dimensional model facilitates data visualization, enhancing operator clarity.
The data for visualization was obtained by interpolating the results of calculations performed using a two-dimensional model onto a regular grid.
Results of the calculations are data for each of the five intensive parameters for each of the Nf vertical sections of the furnace.
The utilization of an irregular grid constitutes a disadvantage when it comes to the effective graphical representation of data.
The majority of visualization packages necessitate data to be represented on a regular X-Y grid, or, in the case of this study, an R-H grid.
Online since: July 2015
Authors: P.M. Mohite, S. Kamle, Tigmanshu Goyal, David Kumar, Vemuri Shyam Kumar
Geometry, inertia, mass and frequency data of the gull were used to model the wing.
The design data for the Black Headed Gull used in this paper, was taken from these papers.
Secondly, it controls the input of the upstroke span reduction through the span reduction servo which is connected to a push rod via its servo arm.
UAV Wing Kinematic Analysis The experimental setup comprised of a LASER sensor, a Power Amplifier, a Data Acquisition Machine, a LabVIEW program, the model wing with LASER reflecting tapes and the control mechanism as shown in Fig 2(a).
The 3D plots show the overall wing positions at different instants of time from the cumulative data of all the points.
Online since: September 2013
Authors: Zhang Wei Fan, Yong Liu, Ming Hui Liang, Xiao Wei Wen, Ming Rong Zhang
Compared with the carburetor fuel supply system, it has practical significance to energy saving and emissions reduction. 2.
Principle of energy saving and emissions reduction What matters most for Motorcycle engine’s emissions and fuel economy are the uniformity of mixture.
(1) Surface effect As data shows, the sum surface area of 1 gram superfine particles can be as high as 100 square meters.
Analysis of experimental data The research object of this article is DAYANG motorcycle engine DY156FMI, its emission standards is China Standard II; the measuring instrument is NHA - 500 exhaust-gas analyzer; the measuring method is double idle speed method and real-time data measurement method[2] [3].
Sampling a certain range of measuring data , then processing the 4 set of data with method of mean value method ,namely: rotational speed, density of HC, CO, CO2 and NOx are averaged.The compared air figure as shown from fig. 3 to fig.6: Fig.3 Comparison chart of HC concentration Fig.4 Comparison chart of CO concentration Fig.5 Comparison chart of CO2 concentration Fig.6 Comparison chart of NOX concentration From comparing figure , the new system has changed little for NOx emissions ; but the average density of HC and CO emissions are obviously lower than the original carburetor; the CO2 emissions is higher than the original carburetor.
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