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Online since: July 2014
Authors: D. Ravichandar, Thangavel Balusamy, K. Bommannan Nagashanmugam
Data of trial heats revealed that, UT rejections were more in heats cast with superheat levels more than 35oC.
Based on the data obtained from trial heats superheat was optimised to 25-35oC for both Cr-Mo and high manganese steels.
As superheats contribute to porosity and voids, data on superheat levels were reviewed for heats in which UT rejections were found to be more.
Data analysis revealed a wide variation in superheat levels.
Hence, based on the data obtained from trial heats, the superheats have been optimised to 25-35oC for both Cr-Mo and high manganese grades.
Online since: October 2018
Authors: Mikhail P. Kuz'min, V.V. Kondratiev, L.M. Larionov
Production of Al–Si Alloys by the Direct Silicon Reduction from the Amorphous Microsilica M.P.
Thermodynamic possibility of silicon dioxide reduction in aluminum melt has been determined.
The value of Gibbs free energy in the test temperature range was calculated with a step of 100 K on the basis of published data [5–8].
This indicates firstly to the possibility of recovering amorphous silica at temperatures above that for aluminum melting and, secondly, to the intensity reduction of occurrence of this process with a subsequent increase in temperature.
Acceleration of reduction of silicon from its oxide was ensured by the introduction of silica particles together with the flow of argon and their subsequent intensive mixing.
Online since: January 2012
Authors: Mohmmad Sadegh Ebrahimi, Jamshid Rezaei, Mohammad Hossein Daraei, Ali Siahkoohi
Generally, the operation of smart grids could be summarized in three steps: Data Acquisition.
WSNs are networks comprised of sensor nodes and data centers and an appropriate communication mean for data transmission; as it is presented in this paper, these networks are viable to be implemented as smart grids, because of their benefits in the data acquisition stage.
Data Processing.
Since it’s difficult to store and perform such huge computations on one data center, these calculations are done on various layers and distributed over many data centers.
Sensors must be selected according to the type of data they are designed to measure [8].
Online since: February 2013
Authors: Feng Yun Wang
Zhang Yuzhuo thought the key of carbon emission reduction is the cleaning of coal in China.
Fig.1 The change of energy consumption structure in China Data from China Statistical Yearbook 2010 and 2010 National Economic and Social Development Statistical Bulletin.
Fig. 2 Proportion of output value of China's three industries in GDP Data from China Statistical Yearbook 2010.
After this, the regulations and measures of Energy saving and emission reduction and improving energy efficiency are drew up continuously.
Energy efficiency should be improved further China's energy efficiency improved from 1179 RMB per ton standard coal of 1985 to 10,818 RMB per ton standard coal of 2009 Data are calculated by energy efficiency=GDP/gross of energy consumption
Online since: December 2014
Authors: Yi Gao
Then this study analyses the effects of routing selection as a transportation organization strategy from the view of carbon footprint by using the actual operation data and energy consumption data from a highway freight enterprise.
However in the real conditions, this calculation has no detail data support.
Data Collection.
Introduction of Data Collection Platform.
The authors wish to thank all persons who either provided the technical supports or helped on data collection and processing.
Online since: May 2012
Authors: Te Tien Ku, Chia Hung Lin, Chao Shun Chen
The communication module with RS-485 using Modbus protocol is used to ensure the accuracy of data transmission.
Either the power line carrier or ZigBee communication board is applied to set up the two way communication over the low voltage line between the meter and data concentration unit (DCU) at the secondary side of distribution transformers.
The broadband power line carrier over the high voltage line by the inductive coupler is used to transmit the power data from DCU to the substation and master station (MS).
The EMIC can calculate the voltage, current and other power parameters by retrieving the sampling data of both voltage and current sensors.
(3) The main meter collects the data of various appliances such as operation condition and power consumption to determine the control strategy of appliances to achieve more effective demand response
Online since: October 2012
Authors: Lang Wu, Bing Yan, Bin Lei
Cement Hydration Kinetics Research Based on Center- particles Hydration Model Wu Lang1, a, Yan Bing1,b and Lei Bin2,c 1College of Civil Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China 2College of Civil Engineering, Nanchang Institure of Technology, Nanchang 330044, China awulang19812005@126.com, b ybjxnc@163.com, cBinglle@163.com Keywords: cement hydration; kinetics; hydration rate Abstract: Based on the center-particles hydration dynamic model proposed by Park, a micro-structural hydration model of Portland cement that was built considering the decrease of the hydration rate due to the reduction of free water and the reduction of the interfacial area of contact between the free water and the hydration products.
Based on the center-particles hydration dynamic model proposed by Park, a micro-structural hydration model of Portland cement was built considering that the decrease of the hydration rate due to the reduction of free water and the reduction of the interfacial area of contact between the free water and the hydration products.
Examples For the sake of verifying the accuracy of the present model, the data of reference[11] is applied, the Bogue compositions of the cements investigated are listed in table 1.
Conclusions Based on the Park’s [8,9] hydration model, taking into account the reduction in the hydration rate that occurs due to the reduction of free water and the reduction of the interfacial area of contact between the free water and the hydration products, a hydration model is established.
(2) the inner and the outer C-S-H gel have many different, besides that we should consider the reduction of free water and the reduction of the interfacial area of contact between the free water and the hydration products.
Online since: July 2014
Authors: Vinod Kumar Mittal, Surjit Angra, Amarjeet Singh
(4) Analyzing different methods to obtain optimum design of crankshaft in terms of stress, weight and cost reduction.
The result obtained for the present design provides the theoretical basis and data support towards the optimization of the crankshaft in terms stress and weight reduction.
Therefore this hole can be drilled as far as possible in the geometry, to achieve appreciable weight reduction
So if we make minor reduction in the diameter, it will lead to weight reduction without making changes into the counterweights
Calculated data provides the theoretical basis for further optimization of crankshaft.
Online since: October 2012
Authors: Yan Ke, Pei Yu Ren, Pei Yi Ding
Sustainable Approach and Practice on Environmental Management and Carbon Emission Reduction in the Tourism Industry Yan Ke ¹,a, Peiyi Ding 2,b, Peiyu Ren3,c 1 Regional director of EarthCheck Pty Ltd,PO Box 12149,George Street,Queensland 4003,Australia 2 School of Tourism,The University of Queensland,St.
This paper introduces a holistic approach to environmental management and carbon emission reduction with practical application in the tourism industry by EarthCheck program.
The three most complete global temperature records available – from the UK Hadley Centre, NASA, and the US National Climate Data Centre – all show a clear upward trend in global average temperatures over the last 150 years (calculated using an 11 year running average).
A Holistic Approach to Environmental Management and Carbon Emission Reduction Based on 13 years of research by the Sustainable Tourism Cooperative Research Centre, the world’s largest dedicated research centre specialising in sustainable tourism and research funded by Australian federal government and its successor, the EarthCheck Research Institute, EarthCheck benchmarking program was developed and now operates in over 70 countries and services in excess of 1,300 tourism businesses.
The holistic approach to environmental management and carbon emission reduction provides a comprehensive framework for the business to improve resource consumption efficiency and environmental and social performance.
Online since: July 2014
Authors: Yin Ying Li, Yun Ze Wang
The research of key data classification optimal mining methods for massive data Li Yinying, Wang Yunze HeBei institute of communictions, ShiJiazhuang Hebei 050071, China Keywords: inter-cell classification; mathematical model; fuzzy; convergence Abstract: The data classification is an important issue in massive data classification.
The data indexing is the procedure to extract and integrate the data features so that the data which are need to be indexed will maintain stable within a center range.
In the equation, denotes the single feature of the data, n denotes the amounts of the data features, t describes the final features of the data by calculation
(2)K samples are selected in the data set.
They are classified by K-means after dimension reduction with semantic matrix.
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