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Online since: July 2015
Authors: Bernd-Arno Behrens, Tobias Prüß
They perform two functions: tool cooling and reduction of friction.
Grundlagen, Technologien, Maschinen“, Springer Verlag Berlin, 2006 [2] Stute-Schlamme, W.: „Konstruktion und thermomechanisches Verhalten rotationssymmetrischer Schmiedegesenke“, Dissertation, Universität Hannover, 1980 [3] Gulde, M.: „Untersuchung alternativer Schmierungstechnologien für Schmiedegesenke“, Abschlussbericht AiF-Vorhaben 11701, 2001 [4] Gulde, M.; Gröne, S.: „Elektrostatische Pulverschmierung in der Massivumformung“, Schmiede Journal, März 2005, S. 34-36 [5] Gulde, M.: „Elektrostatisches Auftragen von pulverförmigen Schmierstoffen in der Warmmassivumformung und in daran angrenzenden Verfahren“, Dissertation, Universität Hannover, 2006 [6] Reddy, V.: “Powder spray technologies and their selection”, Product Finishing, April 1992, S.24-28 [7] Müssig, B.: Temperierung von Schmiedewerkzeugen zur Erhöhung der Bauteilgenauigkeit; Dissertation, Universität Hannover, 2002 [8] Faghri, A.: „Heat pipe Science and Technology”, Library of Congress Cataloguing-in-Publication Data
A.: „Heat pipes - Fourth Edition“, British Library Cataloguing Publication Data, Pergamon, 1994 (ISBN 0080419038) [10] Smirnov, H.
Online since: December 2014
Authors: Cui Cui Huang, Liang Jun Yu, Li Hua Sun
Therefore, how to overcome its influence, making the system error rate reduction must study and solve the problems in the digital baseband system.
(5) For the simulation of filtering effect, it needs to generate baseband waveform, this paper use the MATLAB software, and combined with the Calman PID control algorithm, the digital waveform procedures are compiled as follows [9,10]: N_sample=18;N_data=2000;gt = ones(2,N_sample); d=sign(randn(2,N_data)); D=length(d); dd=zeros(N_sample,D); dd(1,:)=d; dd=reshape(dd,1,N_sample*D); Dt=conv(dd,gt); plot(t1,Dt(1:length(t1))); ylabel(''); ......
Online since: April 2009
Authors: Daryoush Emadi, Mahi Sahoo, Maria Aniolek, W. Kasprzak
Diesel engine components, particularly cylinder heads, are made of cast irons and replacing them with aluminium alloys could result in a significant weight reduction and consequently better fuel efficiency.
Various alternatives such as compensation of the alloy's increased price by reduction or elimination of its post-processing are considered to keep overall manufacturing costs low.
The application of the first derivative curves and adequate data smoothing techniques allowed significant improvement to the resolution of the dilatometer signal.
It was observed that elongation was lower for Alloy B in agreement with other published data indicating that simultaneous increase in Cu and Mg improves ultimate and yield strengths at the expense of ductility [1-2].
Online since: October 2012
Authors: Xuan Ya Wang, Ya Ze Chen, Hong Geng, Jie Gao
VOCs recovery technology on Chinese oil terminal has been listed as one of five “key energy saving and reduction projects during 12nd five years plan period” by Water Department of MOT, which can bring huge economic benefit.
For responding to the call of national energy safe and emission reduction (ESER), Ministry of Transportation P.R.CHINA (MOT) issued a notification about “Overall program of ESER during 12nd five years period”, and took “VOCs recovery technology project” as one of five key ESER project; the relevant work has been carried out since 2011 by VOCs recovery research group (VOC group).
According to already calculated data that is VOCs recovery can bring appreciable economic benefit and social, environmental benefit, VOCs recovery on oil terminal was deemed to have a vast potential to future development in China [2].
Acknowledgements Some of information was supported by the WTB, PetroChina, Sinopec, some Chines oil terminal and VOCs system producers from both domestic and international, Thanks for their data providing.
Online since: June 2012
Authors: Ling Hong Luo, Jia Song Zhang, Ye Fan Wu, Guo Yang Shen, Hui Su
About 150 °C reduction in densification temperature of Y0.08Zr0.72Ce0.2O1.6-CuO0.02 was obtained when compared with Y0.08Zr0.72Ce0.2O1.6.The YSZDC-Cu0.02 pellets sintered at 1300°C and the YSZDC sintered at 1450°C exhibited relative densities of 95.66% and 94.73%, respectively.
High sintering temperatures result in several disadvantages to CeO2 doped ZrO2-based solid electrolytes such as high manufacture cost, reduction of Ce+4 to Ce+3 also caused a high oxygen partial pressure, which decreased oxygen vacancies and the simultaneous reduction of Ce ions from the tetravalent state Ce4+ to the trivalent state Ce3+ [6].
The diffraction peaks of the XRD data indicated the YSDC powder exhibits cubic fluorite structure (Fm3m space group) without any other traces , certifying that the CeO2 is fully stabilized by YSZ.
Online since: August 2014
Authors: Anton Panda, Ján Duplák, Marek Prislupčák, Pavol Kokuľa
This material is usable for actuator (actuators and reduction gears) too.
Isakov, Cutting Data for turning of steel, Industrial Press, New York, 2009, 316 p
Pandová, Natural zeolite-clinoptilolite - raw material serviceable in the reduction of toxical components at combustion engines noxious gases, Gospodarka surowcami mineralnymi 23/4 (2007) 19-25
Dubayová, Natural and modified clinoptilolite testing for reduction of harmful substance in manufacturing exploitation, Advanced Materials Research 518-523 (2012) 1757-1760
Online since: August 2013
Authors: Long Jiang Shen, Lian Fa Ruan
Then we can get the standardized data by the equation (2)
where the ak stands for the contribution rate of the first k data
Empirical Research Selecting the Indicators and the Source of the Data.
We get the data from Statistical Yearbook.
More data can be supplemented and further research will be conducted to validate the result in this paper in the future.
Online since: June 2014
Authors: M. Vinoth Kumar, J. Gobinath, M. Sangeetha
The automated system actions are analyzed and monitored in the server or data storage room.
Communication between the sensor nodes and the data receiver is via the ZigBee protocol under the IEEE 802.15.4WPAN.
Fig.1 Overview of Structural Concept The WIU has also a GPRS module to send out the data to a web server through the public mobile network.
The soil moisture data and temperature data from each wireless sensor unit are received, recognized, recorded, and analyzed in the wireless information unit.
Communication with the web server for uploading and downloading the data through URL.
Online since: March 2014
Authors: Fu Yan Liu, Chong Yuan Fan
One widely used research direction is single SNR (Signal-to-Noise Ratio) compression algorithm which all topology data and geometry data will be unpacked and drawn after received at once.
In 1990s, people have clearly aware of the basis for mesh connectivity is encoded in the importance of mesh compression [1].A typical mesh compression algorithm would separate geometric data and connectivity information data independently.
However, the geometric data required data size higher than the topology data.
We can use energy function to find out the relationship between continuous or discrete data within a certain range.
We propose a powerful mesh operator that can reconstruct the mesh and use the minimum data to represent an exquisite model.
Online since: August 2014
Authors: Zhan Ting Yuan, Peng Fei Xing, Qiu Yu Zhang, Yi Bo Huang
Hash function is based on the perception of human psychology multimedia information processing theory, multimedia data is unidirectional mapped to a data set of multimedia perception summary sets, will have the same perception content of multimedia data sequence is mapped to a unique digital abstract, resulting digital Abstract is only, and is unidirectional.
M.Pavithra [10] using sparse kernel principal component analysis to maximize the reduction of the model data, the original data can reduce the amount of data, thereby improving operation efficiency.
NMF can be used for matrix dimension from high-dimensional data, which is also suitable for large-scale data processing.
The perception hash of the 1189 speech segment is intercom pared to gain a 706266 - bit error rate data.
The NMF can better extract the local characteristics and reduce the amount of data processing.
Showing 15561 to 15570 of 40357 items