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Online since: January 2014
Authors: Bao Tian Wang, Xu Fen Zhu, Yong Li Zhang, Jun Yang Wei
Table 1 Basic parameters of clay Clay parameters /(g∙cm-3) /% /% 1.23 33.3 22.8 10 -1.3 Table 2 Basic parameters of ecological bag and grille Test material Coefficient of variation/% Average tensile strength/(kN∙m-1) Warp knitted geogrid 6.9 54.9 Geonet 3.4 14.5 Test instruments and operating procedures There exists large mesh between geogrid strips, the test data result from direct shear test show that the friction strength characteristics between clay covers a great part.
It applied vertical load with lever, and horizontal load with strain control which use stepper motor to drive reduction gear.
Data acquisition system.
Data acquisition system consists of pull and pressure sensor, displacement sensor, data acquisition device, microcomputer etc.
Online since: December 2012
Authors: Pawan Kumar Arora, Abid Haleem, M.K. Singh, Harish Kumar
Murugan (2005) proposed new approaches for cell formation which takes into account the relevant production data such as process sequences and set–up times.
A genetic algorithm has been developed for solving the cell formation problem considering the reduction in set up time.
Tests using published data show that the proposed algorithm can find the group structure present in the data sets.
The main objective behind this algorithm is to explain an application of the vision system that uses upstream design data of machined parts of different types for downstream metrology and quality decision making in the environment of flexible manufacturing.
Online since: November 2013
Authors: Ahmad Reza Bahramian, Alireza Sharif, Alireza Hajizadeh
Consequently their mercury porosimetry data must be analyzed by the buckling Eq. (2).
Textural characterization of sample( PN2 PN1 PN0.5 ) a) Mercury porosimetry raw data, volume versus pressure and (b) relative pore volume as a function of pore size Toughness improvement via rubber toughening was achieved by the formation of rubber domains, which delay and/or decrease the growth rate of main and secondary cracks propagating in the stiff but brittle phenolic matrix.
The samples submitted to mercury porosimetry show an unusual behavior; in a large pressure range, the recorded volume variation corresponds to a bulk volume reduction of the sample, and not to an intrusion of mercury into the pore network.
The usual method for analyzing mercury porosimetry data assumes that mercury intrudes the pore network, and is not appropriate in the present case.
A new method was developed to analyze the data of porous materials using Eq. (2), which is based on a model of buckling of the structure.
Online since: November 2014
Authors: Peng Ran Zhao, Cui Zhang, Ke Ming Wang
Number of Cross section Description of Cross section position Description of measuring point and direction Section 1-1 Through front bearing of the fan 2 front points in horizontal and vertical directions Section 2-2 Through the intermediate casing 2 middle points in horizontal and vertical directions Section 3-3 Through the bearing of the low pressure turbine 2 rear points in horizontal and vertical directions Section 4-4 Through external accessory unit 2 outer points in horizontal and vertical directions Section 5-5 Through gear reduction unit 1 upper point in horizontal direction After selecting the locations of the measuring points, the different operating conditions of aircraft engine are tested and the vibration signals are measured.
[2] Wu Qishi, Nafeswara S.V., On computing Mobile Agent Routes for Data Fusion in Distributed Sensor Networks, IEEE Transactions on Knowledge & Data Engineering, Jun.2004 [3] AI Yan-ting,FEI Cheng-wei.
Multi-sensor Data Fusion and Its Application [M].
Sensor and Data Fusion Concepts and Applications [M] DAI Ya-ping, LIU Zheng, YU Guang-hui, tranlated.
Online since: May 2013
Authors: Hung Yi Tsai, Wen Chin Chen
Currently, public and countries worldwide are mutually facing the enforcement of the green-economic era concerning energy saving and carbon reduction.
The term of Intelligent Information Communication Services refers to the activities, facilities, and architecture in which information and communication technology is integrated through electronic control interface, which in turn helps transmit the data of activities and facility operations to the central monitored control system via information technology integration in order to achieve higher level of independent operations for controlling, monitoring, recording, rectifying, and warning on equipment functions.
Data Analysis From the previous description, this study adopts intelligent information communication services as analysis basis, simultaneously uses all messages contained CSR concepts (e.g. unlimited form of website contents on the past history, mission and vision, activity announcement, services, etc.) as observed units in order to assist the proposed CSR definitions to evaluate and analyze collected data.
This study aims to employ the common digital type taxonomy and the random sampling method to collect data from large 500 companies listed in the America Fortune magazine (Esrock and Leichty, 1998, 2000), and then integrates website present type and common mode.
Online since: October 2006
Authors: Joon Ryong Jeon, Gui Lee, Gwang Hee Heo, Chin Ok Lee, Woo Sang Lee
The formula for the updating is simply defined, as follows: [ ] [ ] [ ] [ ] [ ] [ ] { }[ ] 1 1 2 2 T T A A A A X X X A K K K ω ω − −     ∆ = Φ Φ − Φ Φ     (3) [ ] [ ] [ ][ ] [ ][ ] { }[ ] T T A A A X X A M M M ∆ ≅ Φ Φ − Φ Φ (4) In equation(1) to (4), [ ]K∆ is modified stiffness matrix, [ ]M∆ is modified mass matrix, [ ]K is stiffness matrix, [ ]M is mass matrix, X is subscript for experimental data, A is subscript for analytical data, [ ]Φ is mass normalized mode-shape matrix and 2ω   is eigen-value matrix.
The structural damages are described with reduction ratio of cross-section area by making various cuts in the cross sectional area of the beams.
Data acquisition system was used HP VXI 1432.
References [1] Doebling, S.W., Farrar, C.R., Prome, M.B. and Shevitz, D.W.: Damage identification and health monitoring of structural and mechanical systems from changes in their vibration characteristics: a literature review ( Los Alamos National Laboratory Report LA-13070-MS, 1996) [2] Johnson, E.A., Lam H.F., Katafygiotis, L.S., Beck, J.L.: A Benchmark Problem for Structural Health Monitoring and Damage Detection ( Proc. 14th Engineering Mechanics Conf, 2000) [3] Baruch, M.: Optimization Procedure to Correct Stiffness and Flexibility Matrices Using Vibration Tests ( AIAA J., 16(11), pp. 1208-1210, 1978) [4] Berman, A. and Nagy, E.J.: Improvement of a Large Analytical Model Using Test Data (AIAA J., 21(8), pp. 1168-1173, 1983) [5] Sidhu, J. and Ewins, D.J.: Correlation of Finite Element and Modal Test Studies of a Practical Structure ( Proc. 2nd Intl.
Online since: February 2013
Authors: Gui Juan Dong
The concept of ecological compensation by ecology theory derivation, show natural ecological compensation, which is defined as organisms, population, community or ecological system interference, shown by the moderate interference, adjust their own state make survival to the maintenance ability, or can be regarded as ecological load reduction ability[2].
In the national library of China library data, in the field of ecological compensation, the publication of the book publication, press year classification statistics: 2011 article 9, 2010, article 17, 2009 7, 2008 article 10, article May 2007, 2006 article 4, 2005 1, 2004 1, 2003 article 2, 2002 article 2, 2000 1, 1994 article 2.
Figure 2 Ecological compensation in recent years the books and publications and degree paper presented quantity statistics Based on the Ecological Compensation of Journal Articles Academic Research Statistics To know China and lager all sink scholarly literature as the source database, select relevant keywords, literature retrieval results obtained with EXCEL for data processing tools, using literature metrological methods on the above database collected papers from the research content structure, research institutions, research field and get funding research on statistics.
So the retrieval data the same research content classification, compound term retrieval results to less than the sum of individual term results, it shows that there are repeated part.
Through the data in table 1, get field of ecological compensation in 2000-2011 by the trend of the development of funded papers (figure 4).
Online since: October 2018
Authors: Vladimir A. Gol'tsev, V.I. Matyukhin, S.Ya. Zhuravlev
Mechanical strength values of green compacts Review of the obtained data shows that briquette strength properties for any types of binding agents increase gradually as the compacting pressure grows.
Green bond test results of briquettes with different binders When reviewing the data of Fig. 3 it shall be noted that when the organic binder Polyplast 5SV was used the briquettes after dropping and sieving had the minimum sieve residue of fine fraction and the maximum sieve residue of coarse fraction.
Reviewing the given data the briquette drying time of 10 minutes is believed to be sufficient as further increase of this parameter leads to insignificant growth of sample strength values.
Basic coke carbon oxidation periods Period temperature (°С) I II III IV V Start Interval Start Interval Start Interval Start Interval Start Interval 574 47 621 128 749 174 923 65 988 61 In the context of heat emission process development the data related only to the first and second periods are of primary importance for evaluation of the coke carbon oxidation kinetics, as subsequent processes are determined mainly by the gas - coke surface interaction dynamics.
Pavlov, O.V Chadaeva, P.S Chizhov, Study of the High-Temperature Reduction of Ore-Coal Extrusion Briquettes (Brex) Metallurgist. 57(9-10) (2014) 871-877
Online since: October 2012
Authors: Hua Yong Zhang, Zhong Yu Wang, Wei Gang Xu, Wen Pei Huang
So the main consideration for plant choice and design is waterfront ecological remodeling and the reduction of nature environment.
The flow discharge and velocity data were collected at the same period of time to ensure consistency of the simulated data and measured data.
According to the measured data of the initial case the constructed wetland, 2D flow field numerical simulation was conducted, and simulation results were compared and analyzed.
Online since: May 2015
Authors: Zahari Taha, Razali Muhamad, Hazwan Syafiq
However, it still may not be the best solution because Mild Steel has the lowest value in terms of material recovery impact, which means a reduction in the environmental impact factor.
The results from the proposed method was compared with the Eco-It and the actual experiments.Table 4 shows a summary of the results produced by the Eco-it and the actual experiments for the three designs which have been compared with the data generated by GA.
ID Total Environmental Impact EIAT (kg CO2-eq) Total Environmental Impact Eco-It(kg CO2-eq) EIAT-ECO-It Difference percentage % Data from Actual experiment(kg CO2-eq) EIAT-Actual Experiment Difference percentage % 5051 0.639 0.667 4.35% 0.702 8.97% 8008 0.739 0.801 7.77% 0.797 7.28% 5942 0.919 0.991 7.16% 1.009 8.92% It can be seen that the data produced by EIAT is in good agreement with the Eco-It software and the actual experiments with the percentage difference of less than 9 % in both cases.
Based on the data of the actual experiment, three of these designs were chosen to validate the EAIT against a commercially available eco tool called ECO-it.
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