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Online since: November 2011
Authors: Guo You Gan, Jing Hong Du, Ya Zheng, Jia Min Zhang, Jian Hong Yi, Ji Kang Yan, Lei Zhang
Many experiments did not consider the effect of bubbles in reduction process.
The XRD of chemical reaction shown in Figure 1.The results showed that the diffraction peaks position and intensity of the reduction matching with the JCPDS diffraction data, and did not contain diffraction peaks of the impurity phases.
Several sizes of microsize silver were prepared at different amounts of dispersants to understand the significant effects of dispersant on the size distribution of reduction reaction.
When pH > 5, is strong reduction and favorable nucleation.
When pH > 10, though ascorbic acid reduction will increase, greatly decrease the dispersion of PEG, that is, when pH = 10, the silver particle size become increases greatly.
Online since: April 2016
Authors: Pey Shey Wu, Min Jho Young, Jun Yun Wu, Chia Chian Wang, Hao Yu Hu, Chih Fei Chang
One of the important objectives of a vehicle design is the reduction of total resistance during motion.
Such a reduction in aerodynamic drag could lead to 28% reduction in fuel consumption for that bus.
The numerical force and moment coefficients agreed well with experimental data.
The highest and the lowest values of the color bar do not represent the data bounds.
Extracting the data from computed results show the (minimal value, maximal vale) of the curl are (-62.9, 59.9) for Car A, (-113.2, 114.2) for Car B, (-39.4, 39.4) for Car C, and (-50.2, 46.7) for Car D.
Online since: December 2011
Authors: Leo A.I. Kestens, Roumen H. Petrov, Jurij J. Sidor
The changes in crystallographic texture are investigated during recrystallization in 5182 and 6016 aluminum alloys, which were subjected to various cold rolling reductions.
The development of recrystallization textures is discussed based on experimental data and results of crystal plasticity simulations.
To the purpose of comparison between measured and predicted textures, the orientation data were post-processed with the MTM-FHM software developed by Van Houtte [2].
In the current investigation, the intensity of the rolling texture, which already pre-exists in the hot band materials A and B, increases considerably after the conventional cold rolling reduction.
A non-conventional type of recrystallization texture is observed in severely deformed material C (~94% rolling reduction), i.e. a relatively strong 20° rotated cube orientation has evolved.
Online since: February 2014
Authors: Qi Song Yang, Ken Long
(1) is the modulated data symbols for each subcarrier on frequency domain.
In cyclic shift PTS method [11], the frequency domain data is divided by a certain partitioning scheme into V disjoint sub-sequences so that .
In order to ensure the integrity of the data, C-PTS can generate candidates.
Fig. 1 shows the pilot symbol pattern for V=4 of the proposed scheme, where data symbols and pilot symbols are represented by small empty circles and big black filled circles respectively.
[16] Hyunju Kim, Student Member, IEEE, Eonpyo Hong, Member, IEEE, Changjun Ahn, and Dongsoo Har, “A Pilot Symbol Pattern Enabling Data Recovery Without Side Information in PTS-Based OFDM Systems,”IEEE TRANSACTIONS ON BROADCASTING, VOL.57, NO.2, pp. 307-312, JUNE.2011.
Online since: February 2006
Authors: Xin Ming Zhang, Yong Zhang, Xun Liang, Yun Lai Deng
Micro-orientation data of a high purity Al rolled up to total thickness reduction of 80% at room temperature were determined using SEM-EBSD technique, conceptions of describing substructure information, such as subgrain misorientation (θcry), and average misorientation (θenv) of circumjacent subgrains for a special subgrain, etc., were suggested and corresponding GCDP-OI soft package was developed.
There are a lot of methods for analyzing micro-orientation data determined by SEM-EBSD technique.
An Analysis of micro-orientation data from OIM for a scan of the investigated specimen is shown in Fig.1.
In order to obtain more details on deformed substructures, it is necessary to establish a quantitative method for analyzing micro-orientation data.
Fig.1 Analysis of the micro-orientation data determined by SEM-EBSD for the high purity Al rolled to total thickness reduction of 80% at room temperature.
Online since: August 2013
Authors: Kun Hu Lin, Jyh Dong Lin, Pei I Chang, De I Chen
The outcomes of manhole reduction, roadbed improvement and smoothness of roads have been quite well these past three years, and have been approved by citizens.
Phase II (roadbed improvement and manhole lowering and reduction): for potholes or cracks on road surface caused by poor roadbed, improve the roadbed underneath to extend use life of roads; also lower existing manholes on old roads (to 20 cm under road surface), which can allow convenient control of length, breadth and slope when paving, and manhole reduction can enhance comfort of vehicle movement.
Fig. 5 Flow chart for processing road Fig. 6 Function and framework of Road inspection and reporting cases Excavation Management System (2) Establishment of “Road Excavation Management System” The establishment of the “Road Excavation Management System” was to store systematically historical data on road excavation to increase efficiency and accuracy of excavation permit issuance, as well as update pipeline charts and data effectively (see Fig. 6).
Furthermore, in order to meet the manhole reduction measures in Luping Project and improve administration efficiency, an online application for manhole cover closing/opening was added in the original Road Excavation Management System to improve the flaw of difficulty in timely statistics of paper applications, and charts and data of controlled pipeline mechanisms were updated as statistics for follow-up manhole management
Renovations of 34 main road networks in Taipei City have been completed (see Fig. 8), of which the renovated area is over 6.60 million m2, and the manhole cover reduction of the renovated roads is over 36,000 covers.
Online since: September 2013
Authors: Teruyuki Fukuhara, Chao He, Yang Wang, Yi Bin Chen
In order to discuss the effect of energy saving of heat-reflective insulation coating on exterior walls of building, the wall temperature change of two test rooms with heat insulation or not in Hangzhou has been monitored in summer, and the heat flux data of east, south and west walls were analyzed.
The experiment is carried out in Hangzhou in summer, and conducted by monitoring the indoor and exterior wall temperature of buildings with and without reflective coatings comparatively and analyzing the acquired temperature data.
All the temperatures are measured and recorded every five minutes automatically by Agilent data acquisition system.
For the convenience of analysis, only representative temperature data for one-month period from August 1st to August 30th are analyzed in this paper, which is collected from building envelope.
Furthermore, since the roof temperature and the northern wall temperature of 1# and 2# buildings are very close, the data is omitted in the analysis.
Online since: January 2013
Authors: Chang Zheng Chen, Hao Zhou, Huan Liu
In practical engineering applications, good effect of noise reduction has been achieved.
This paper firstly takes a test on the noise of No.1 unit of this equipment, and have a spectral analysis according to the noise data in order to have a preliminary judge on the location of the noise source of the No.1 unit, and then combining the vibration spectrum, analysis of the reason of fault, make corresponding reduction measures, not only to protect the working environment of the workers, but also eliminates ammonia refrigeration the fault hidden dangers, to ensure safety in production enterprises to provide a strong protection, but also for other large unit maintenance to provide certain reference significance.
Fig.1 Schematic diagram of unit of measurement points To collect the primitive data and the noise spectrum, and make the unit test the machine within the distance of 1 and 0 meters under the condition of full load operation, measuring many average pressure values of [4], as shown in table 1.
Table 1 The measurement noise data Distance measurement Measurement noise value [db] 1 2 3 4 5 6 7 8 1 m 101 107 102 102 102 101 109 107 0 m 105 109 103 104 104 104 111 117 Table 1 shows that the noise value of measuring points of 2, 7, 8 are larger, which means that the compressor around greater noise and vibration are relatively big, and motor noise around the smaller.
Vibration analysis By measuring data, it is shown that the vibration intensity around the bearing on the points of 3, 4, 5 were all more than 10[mm/s], and the remaining points a re not more than 4[mm/s], the vibration of the primary sources from compressor.
Online since: August 2013
Authors: De Ping Yuan, Juan Yi Zheng, Hao Shan Shi
Introduction Data association is the key to target tracking of the multi-sensor multi-target.
Traditionally, the methods of data association are nearest-neighbor data association (NN), probability data association (PDA), joint probabilistic data association (JPDA) and multiple hypothesis test (MHT) etc[1].
Association Model of Multi-Sensor Multi-Target Data Association and Tracking Gate.
The Description for S Dimension Data Association in Multi-Sensor Multi-Target.
For multi-sensor multi-target data association, the PSO algorithm is improved as follow.
Online since: December 2013
Authors: Janis Dundurs, Miervaldis Lacis
All these stations were linked to a central data logging center where the noise maps on empirical algorithms were built comprising the long-term average noise levels with positioning information and average weather data.
The only set back from enlarged Riga agglomeration the widened noise map did not provide data necessary to report about noise pollution situation in Riga City to, for instance, the international organizations “EUROCITIES”, “Green capital” or so.
France, Greece and Italy provided data for some of the environmental noise sources not for all.
The European Commission will consider further actions in relation to implementation improvements and possible measures on noise source reduction.
The Directive 2002/49/EC obliges European Union Member states to draw Noise reduction Action plans.
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