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Online since: November 2015
Authors: Katarzyna Janecka, Andrzej Frankiewicz, Marcin Przedlacki
Biofine and Texaco research [3] demonstrated that introduction of EL into fuel compositions causes reduction of particulate matter (PM), hydrocarbons and carbon dioxide emissions.
The increase of EL-FAME content resulted in further reduction of WS1.4.
Addition of 1% (V/V) of a EL-FAME caused the reduction of the friction coefficient to 0.193 and the increase of the lubricating film thickness to 65%.
Further increase of biocomponent concentration to 7% (V/V) caused the reduction of the friction coefficient to 0.134 and increase of the lubricating film thickness to 72%.
Data in the second column is based on the reference [6].
Online since: January 2015
Authors: Sylwia Wiewiórowska, Marek Siemiński, Zbigniew Muskalski
In absence of a sufficient number of data for estimation the temperature Md, such as: the mole fraction of carbon in retained austenite, the experimental research has been done.
The example of temperature distribution for drawn wires with smal partial reductions was shown in Figure 2. 1st draw 2nd draw 3rd draw 4th draw Fig. 2.
The distribution of temperature for drawn wires with small partial reductions and with drawing speed equal vc = 0.23 m/s The values of temperature read from mesh nodes (for each draw) for wire sufrace and wire axis are placed on Figures 3–4.
The variation in temperature value for wire surface and wire axis for wires drawn with small partial reductions as a function of the total reduction in area, for two drawing speeds Fig. 4.
The variation in temperature value for wire surface and wire axis for wires drawn with large partial reductions as a function of the total reduction in area, for two drawing speeds The values of drawn wires temperature are in the range from 34 to 255 °C, and depend directly on the schedule of partial reductions and speed of drawing.
Online since: November 2010
Authors: Hong Ren Zhan, Zhan Guo Fan, Xiao Fen Jiang, Jie Li, Tao Jiang
Meanwhile, disorder degree of the materials increases, as leads to the reduction of the mean free path of phonon.
However, the ionic theory of slag results show that, as the temperature increases, the network structure of slag is gradually cut off [12], the degree of disorder gradually increased so as to cause the reduction of phonon mean free path.
The data from Table 2[14] may also illustrate this point.
Because B is trivalence and Si is quadrivalent, replacing SiO2 by B2O3 will lead to the reduction of slag overall bond density.
Kunugi, et al., in: Handbook of Glass Data, edited by O.V.
Online since: June 2016
Authors: Marius Deaconu, Dragos Mihai, Luminita Dragasanu, Adina Cristina Toma
Analyzing the obtained noise data from measuring noise of all activity and the noise produced by chiselling operation (Figure 2), one can observe that in the measurement points S1 and S2, the equivalent sound weighted levels are close for both measurement, but there is a big difference between the levels recorded in points 1- 6.
Typically, reductions up to 10 dBA can be achieved for A-weighted sound pressure levels.
Polishing process – linear equivalent noise pressure level for all three configurations (blue – configuration 1, red – configuration 2, green – configuration 3) After this set of measurements it was observed that for polishing process good results were obtained while for the chiselling process the data are inconclusive, so supplementary measurements were preformed (figure 6 shows grater level of noise in configuration 3).
The noise reduction obtained for this set of measurements is presented in the Table 1 and Figure 10.
Noise reduction obtained with the artificial sound source Figure 10.
Online since: May 2014
Authors: Fang Zhu, Xiong Fei Huang, Bao Yu Ye
Liu et al.[2] used factor analysis of the multivariate measurement data to get the coefficient matrix of the process model.
Shan and Apley [3] used blind source separation techniques to build the data-driven process model.
From the history data, we get the covariance matrices of sensor noise, natural variation of the locators and process noise, where is an r × r identity matrix.
From the above calculation, we can get the specification of these data, as shown in Table 1.
Table 1 Specification of the quality data Item USL Target LSL Value 5.1 5 4.9 5 0.0458 So we can use Equation (11) to calculate the Cpis: The result shows that CP is not enough, We must improve the process capability.
Online since: May 2013
Authors: Morteza Rajab Zadeh, O.V. Ivchenko, V.A. Zaloga
Date accepted: 15 April 2013] Keywords: Social accountability (responsibility), International standard SA 8000, Statistical data, Competitiveness of organizations, international market Abstract.
Data obtained from the international organization SAAS (Social Accountability Accreditation Services) were analyzed using bar charts, percentages and Pareto (ABC) analysis.
Methodology This article is based on input data presented by the international organization SAAS (Social Accountability Accreditation Services) [11, 12, 13].
During the conducted research, the statistical and graphical methods of data processing and analysis, and Pareto or ABC analysis were used.
Table 1 shows the analysis of the statistical data which are displayed in Figure 2 and presented in the reference [6].
Online since: May 2011
Authors: Vladimir V. Stolyarov
Systematized literature data related to the study of mechanical and functional properties of ultrafine-grained and nanostructured metallic materials processed by deformation methods are presented.
The aim of this paper is to present the literature data review of the features of mechanical and functional properties on the example of titanium alloys processed by the following deformation methods: high pressure torsion (HPT) [3], equal-channel angular pressing (ECAP) [4-6] and electroplastic deformation (EPD) [7-9].
In a number of cases literature data for pure copper and magnesium alloys are cited.
In the nanosized range of 1-100 nm the experimental data have proved to be ambiguous.
Given below are the data for titanium and its alloys [37, 38] produced using the ECAP and the EPD methods.
Online since: May 2011
Authors: Manal Hussin, Zhu Ge Yan, Frank Bullen, Weena Lokuge
The reduction in the relative amount of fine aggregate increased the average pore space and resulted in a reduction in mix stiffness and a marginal increase in ultimate strength.
It is recognised by the authors that such a procedure does not produce highly accurate stiffness data as the strain within the end caps plus testing system compliance is also measured.
Online since: October 2014
Authors: Xin Pu Shen, Xiao Chun Wang
Deformation of casing after reduction of mud-weight pressure.
Distribution of damage SDEG within interface elements after mud weight reduction.
Distribution of pore pressure within interface elements after mud weight reduction.
Distribution of shear stress S13 within interface elements after mud weight reduction.
In addition to the numerical works presented here, an experimental investigation on variation of values of strength parameters with time for a full process of setting for nitrogen foamed cement will provide solid foundation to the input data of the numerical model used here.
Online since: September 2014
Authors: Bing Qiang Zhou, Bo Liu
An implementation of a new rearview device on the automobile 作者 周炳强 (镇江高等专科学校,邮编 212000) Bingqiang Zhou1, aand Bo Liu1,b 1Department of mechanical engineering of ZhenJiang College, Zhenjiang, Jiangsu,China a 1203725983@qq.com, bzjgzliubo@163.com Keywords: car rearview device, high-resolution camera, image display Abstract.A new automotive rearview device is to integrate sensor technology, data transfer and image formation principle, the original left/right rearview mirrors are removed, replaced by two high-resolition camera. walker, the car on both sides and the rear of the vehicle, the specific location of buildings, and the distance next to itself , can display clearly through the cockpit video , which provide a full & clear visual pictures to the driver, new rearview device instead of traditional reversing function of the mirror, benefit the driver a lot .
position Left and right side high-definition probe specific car, car around and behind the object, person specific image information transmission to the host, the host will receive the information integration, the transmission of image information collection to display, display the image information is displayed, offer drivers, always provide the car, for the driver to turn accurate position, reversing the image information Fig. 1 Schematic diagram of a model car rearview device structure Four, the utility model has the advantages of the automobile rearview device 1 the abolition of the traditional car left and right rearview mirror, the driver not swing to observe the automobile rearview mirror, distracted, affect the normal driving 2 the traditional automobile rearview mirror and the sides of the car body vertical angle outward 200 mm, the vehicle width increased by 400 mm, angle probe, the newly installed 40 mm diameter, 320 mm, shorter stretches out, make the car width reduction
Make the whole car enhanced streamline to reduce the resistance, vehicle 6 new car rearview device disk can record accurate driving car, car collision, contact image of automobile and people, which played the burglarproof function of the automobile, if the car is stolen, damaged, can provide the image evidence 7 new car rearview device disk can provide image data for traffic accident, in order to determine the responsible for the accident Effects of 8 new car rearview device is not affected by the weather, windy or rainy, day and night, the display can the car around and behind the clear display Conclusion The implementation of a device to replace car rearview mirror, completely subvert the function and use of the traditional automobile rearview mirror, is a concrete implementation of the new concept of replacement car rearview mirror, the car into a new field, field of sensor information, is the beginning, the future of automotive development of new technologies, new configuration
, the new concept, new energy vehicles will continue to emerge, will change people's understanding of the automobile, the automobile design more humane, more energy-saving emission reduction function, has the most advanced technology, better service to humanity References [1] Liu Weixin, auto design [M] Beijing: Tsinghua University press( 2003) [2]Xu Da, Jiang Chongxian, special automobile design and structure of [M] Beijing Institute of Technology press(1998) [3] Liu Han, automotive engineering and electronic technology.
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