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Online since: June 2021
Authors: Ke Tong, Shen Cong, Qing Liu, Bo Zhu, Xu Ying Kang
Therefore, this method is characterized by massive measurement data, low inspection speed and high labor intensity.
It should be point out that the data acquired by using the ASTM E1268 standard cannot be simply compared with the data obtained by other methods.
The AI value in American standard is a quantitative rating data of the steel's banded degree or directionality degree.
According to the author's experience, for the same picture, the data obtained in American standard will be closer to the data acquired by other methods with the increasing degree of banded structure.
Massive measurement data, low inspection speed and high labor intensity.
Online since: December 2012
Authors: Fang Yi Li, Wei Dong Liu
Data description.
The data is also restricted by statistics of energy in 2007, which was compiled by the NBS.
The only problem is the statistic of sectors in IO table and the data base do not match.
So we calculated the growth rate of exports and imports of each sector based on OECD data.
We can find another way to estimate the data.
Online since: November 2012
Authors: Su Zhou, Ji Gao Niu
Fuzzy Logic Control Strategy for an Extended-range Electric Vehicle Jigao Niu1,2,a, Su Zhou 1,2,3,b* 1Clean Energy Automotive Engineering Center, 2School of Automotive Studies, 3Sino-German Postgraduate School Tongji University (Jiading Campus), 4800 Caoan Road, Shanghai 201804, China b*suzhou@tongji.edu.cn, ajigaoniulucky@163.com Keywords: series extended-range electric vehicle; control strategy; fuzzy logic controller; fuel consumption; emission reduction Abstract.
The E-REV offers the opportunity for petroleum independence, and a dramatic reduction in emission for many drivers [1].
Data exchange between Cruise and Simulink is realized by using the component Matlab DLL.
Table 2 Comparison between PFCS and FLCS in the Extended-range Mode Cycles PFCS (L/100km) FLCS (L/100km) Ftp72 6.58 6.07 Highway 7.04 6.33 Conclusions The E-REV offers a compromise between conventional vehicles and purely electric vehicles, the opportunity for petroleum independence, and a significant reduction in emissions for many drivers.
Online since: October 2013
Authors: He Zhao, Zhi Yuan Sun, Yu Jia Zhang, Tian Jun Jing
An effective way to solve this problem is the effective evaluation and the cost reduction by the evaluation.
The data from a smart building micro grid is used to validate the method.
Fig.2 DG output and load curves in the typical day In order to analyze the effect of energy storage system cost reduction and the micro grid evaluation index, the micro grid operation cost calculation is carried out in different storage penalty factor and energy storage scheduling . 1) Energy storage system in sheduling mode without panaty factors When the micro grid work in in energy storage sheduling mode, the TOU tarriff is considered, and the micro grid buy power in valley period, while sell in peak period for lower cost.
So the cost reduction is of great importance for the micro grid developmemt.
Online since: December 2011
Authors: AKM Nurul Amin, Anayet Ullah Patwari, Mohammad Ishtiyaq Hossain
The inserts profile and geometry data are presented in Fig. 1.
Significant amount of reduction of chatter amplitude may be observed from this figure.
Reduction at other conditions is not that significant.
Reduction of the amplitude of machining vibration at other trial runs is shown in Fig. 4.
Heating at 420 0C helps in lowering down acceleration amplitude and the maximum reductions were 600%. 3.
Online since: August 2007
Authors: Marta Tańcula, V Kochnev, E. Fokina, Malgorzata Sopicka-Lizer, Tomasz Pawlik
Thus, the reduction of the primary particle size and application of amorphous precursors could enhance the densification of Si3N4-based compacts.
A new possibility for preparation of Si3N4 based powders comes from the top-to-bottom method, if particle size reduction could be achieved by the fracturing and wear of tough silicon nitride particles.
The reduction of AlN crystallite size was noticeable after milling for 30 min. with silicon nitride balls.
Thus, it could be concluded that in the first step the reduction of the size of AlN crystallites took place and was followed by the oxidation of the fine particles during prolonged milling.
Measured and calculated from the XRD data weight fraction of oxygen in the activated powders The measured oxygen content was always higher than that calculated from the XRD results, thus oxidation of silicon nitride during milling is confirmed.
Online since: September 2012
Authors: Md. Abdus Samad, Md. Razu Ahmed, Jia Uddin
With M=46 (Hamming) the two window have equal main lobe width but the proposed window offers -5.3 dB side lobe reduction.
The reduction in side lobe peak is 18.5 dB with M=10 (-55.2 dB compared to -36.7 dB).
It is obvious that the proposed window also outperforms the Hanning and Bartlett windows because Hamming window shows better side lobe reduction than these windows for the same main lobe width.
Finally, for the same specification proposed modified Lanczos window shows more side lobe reduction with slight increased main lobe width in comparison with *new window [9].
Zierhofer,“Data window with tunable side lobe ripple decay”, IEEE Signal Processing Letters, vol. 14, no. 11, Nov. 2007
Online since: January 2009
Authors: Jakub Łagodziński
The optimization has two goals: weight reduction and bearing load capacity.
According to maintenance data, one third of all overhauls of hydraulic servoactuators were caused by leakages through the mentioned sealing.
The second important criterion was the weight reduction.
[4] 304 Chromium - �ickel specification sheet, Sandmeyer Steel Company material data, 2007
[6] B - H curve for Armco iron, The German Electron Synchrotron DESY material data, 2006.
Online since: February 2014
Authors: Hao Liang Jiang, Jin Jiang Yan, De Shan Liu
The earthquake emergency rescue work aiming to minimize casualties and property losses caused by the earthquake and maintain social stability plays an important role in earthquake prevention and disaster reduction.
With 2D GIS data model and structural theory and technology mature, further development of graphic theory, database theoretical technology and computer virtual reality technology, and strong promotion of the applicative demand, the emergence and development of 3D GIS have become possible [3].
Considering practicability and diversity of the channels of getting remote sensing data, this paper uses the OpenGL technology as the main implemental platform and develops this system under the C/S mode.
The data of this system can be managed by combining Oracle database and file; the effect analysis of the earthquake emergency rescue action and marking the targets can be realized in 3D system; in order to improve the display performance of the 3D geographic scene, the 3D GIS marking function can be developed by directly applying the OpenGL which is relatively outstanding in this field.
Fig.1 Architecture design Function Design. 3D earthquake marking system function includes basic terrain generation, DEM data consolidation, 3D visualization of sky and sea / river, setting location of sun / lighting, 3D scene map operations, managing 3D model library and adding 3D objects, flight and roaming, saving 3D geographic scene and setting effects of 3D geographic scene.
Online since: March 2007
Authors: Joung Hwan Lee, Costas Soutis, Chang Duk Kong
(a) (b) (� : 2mm thick experimental data, � : 3mm thick experimental data, � : 4mm thick experimental data, � : 8mm thick experimental data) Fig. 2 (a) Comparison of fiber volume fraction versus specimen thickness (Unidirectional ([04]ns) - T800/924C laminates), (b)Variation of longitudinal compressive strength with initial fibre waviness for a T800/924C unidirectional laminates�� � Fiber waviness is a manufacturing defect caused by the manufacturing technique used such as filament winding, weaving, braiding, etc.
Average failure strengths of the specimens decreased with increasing specimen thickness from 2[mm] to 8[mm] with the T800/924C system (36[%] strength reduction) and specimen volumes from scaling factor 1 to scaling factor 4 with the IM7/8552 system (46[%] strength reduction).
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