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Online since: October 2010
Authors: Hong Yu Wang, Hui Fei Huang
Data Analysis.
The experimental datas for Pb2+, Cu2+ and Zn2+ adsorption by PAFC modified clinoptilolite and clinoptilolite were analyzed by the linear Langmuir and Frendlich sorption isotherm model.
And the datas were analyzed specifically in Table 4 and Fig.o4.
Conclusions The single and competitive adsorption of Pb2+, Cu2+, and Zn2+ by two clays were studied, and two kinds of experimental datas showed that the absorption affinity of Pb2+, Cu2+, and Zn2+ by two clays followed the order Pb2+ > Cu2+ > Zn2+.
The experimental datas of single systems by clinoptilolite were better fitted by Langmuir equations than by Freundlich isotherms, but by PAFC modified clinoptilolite were fitted well by both Langmuir and Freundlich isotherms.
Online since: December 2013
Authors: Bo Wang, Tao Qi
In view of the current status of manual adjustment-dominated heating network adjustment, time-consuming information feedback and network balance, failure of network balance to achieve the best condition, and uneven heat and cold in a district, heat supply automation transformation technology program in this district is proposed to improve the efficiency of heating network and achieve the goal of energy conservation and emission reduction.
Basis and application standard The basis for the provided program is: The heat company in this region provides Preliminary Work of Heat Supply Network Monitoring System Research of Property Company;The heat company in this region provides Data Sheet of Heat Exchange Station, including data of current heat supply area and planned heat supply area, etc;The heat company in this region provides Heating Operation Daily Report of Property Company in Development Zone, with altogether 11 copies;The heat company in this region provides Pipe Network Floor Plan;The heat company in this region provides Heat Resource Notes;Urban Heat Supply Pipe Network Construction and Acceptance Code, CJJ28-89;Urban Heat Network Design Code, CJJ34-90;Standard for quality inspection and assessment of urban heat supply pipe network, CJJ38-90;Heating engineering terms, CJJ55-93.
According to the data analysis of Heating Operation Daily Report, it could be seen that the operating status of water pump is as follows:Water pump in heat exchange station runs according to the way of constant flow or phased change flow;Most heat exchange stations could meet the heating needs by just starting one water pump;A part of heat exchange stations turn the export valve of water pump to a small opening;A part of heat exchange stations actually have an excessive square meter flow index.
The reduction of minimum flow of pipe network or water pump to the minimum flow is determined by the unbalanced situation of secondary pipe network level.
The implementation of automatic control program reduces the unbalanced degree of pipe network level (according to the analysis of running data, the current unbalanced degree is between 15% and 20%) on the one hand, making the temperature distribution of heat supply room more even.On the other hand, when heat source exceeds users’ requests of heat for a long time, the flow reduction could lower the consumption of primary energy.
Online since: July 2011
Authors: Lan Wang, Hong Sheng Xu
FCA and rough set theory are two kinds of complementary mathematical tools for data analysis and data processing.
Fuzzy rough concept lattice model Training data in real-world applications sometimes consist of quantitative values.
Output: A quantitative data set with n objects, m hierarchical attributes, a set of membership functions, and a value α for α-cut.
The graphical user interface can capture abundant data.
In order to manage a large amount of data in the tool, a repository is necessary[4].
Online since: September 2013
Authors: Igor Tsukrov, Jochen Aufrecht, Andrew Drach, Adolf Grohbauer, Uwe Hofmann, Stefan Theobald
Results Fig. 2 illustrates the collected data from immersed bending fatigue testing performed using the developed test rigs.
Also, the data indicates that the tested wire specimens can withstand stress amplitudes on the level of yield strength for about 100,000 (a) (b) bending guide plate specimen rb y Fig. 1.
This data is summarized in Fig. 3a.
Conclusions The data from bending fatigue tests show that fatigue life of copper alloys depends on the composition and manufacturing parameters.
However, for evaluation of fatigue performance in seawater environment, this study shows that it is important to conduct the immersed fatigue tests in order to get reliable data.
Online since: August 2013
Authors: Jyh Dong Lin, Yung Lin Chen
We use HDM-4 to collect and analyze Guan-Xi region’s Highway No.3 network data, traffic characteristic and cost related information.
Collecting freeway data base: Through the Guan Si workers Service segment, written information and advanced detection instruments to collect basic pavement information of road network, traffic characteristics, vehicle analysis data and climate zone characteristics, and are according to the needs of the HDM-4database creation. 2.
HDM-4 Module and Framework of Analysis [1] HDM-4 analysis derived from the concept of the pavement life cycle analysis, and mode analysis must be carried out before the road traffic data collection and analysis.
The research data mainly comes from the construction of each section of the design and maintenance records over the years, pavement testing records over the years.
This study focuses on the deterioration mode, with the freeway the actual situation and the detection data of deterioration correction coefficient adjustment.
Online since: September 2016
Authors: V.A. Dubrovsky, M.V. Zubova, M.U. Potylitsyn
Analysis of the data in Table 1 leads to the conclusion that the most effective technology is the technology proposed and developed by LLC "Ecoenergy" with universal ecological and energy-efficient burners, which allows solving the problem of power usage in modern coal thermal power plants [1 – 5].
Competitive advantages of the proposed technology are: ease of manufacturing; low investment; high operational reliability; full automation; possibility of using a muffle burner as the main one and simultaneously as the ignition, which drastically reduces the investment due to the lack of special works on wiring of furnace walls, complete replacement of expensive oil with coal dust, a significant reduction in emissions of nitrogen oxides into the atmosphere.
Qualitative assessment score (number of points) Universal burners (UB) ”Ecoenegy” Reduction NOx 2.5 – 3 times Refusal of fuel oil yes Increasing power capacity of units 5-8 % 2.5 – 3 5 Plasma burners 50 – 60 % Refusal of fuel oil yes no 30 – 40 3 Staged combustion NOx Reduction 1.5 – 2 times Usage of fuel oil yes no 50 – 60 1 Vortex combustion process NOx reduction 1.5 – 2 times Usage of fuel oil no Reduction of boilers efficiency because of mehanichal underburning 70 – 90 % 1 Technology "Tohil" no Reduction of fuel oil 90 % no no 5 – 6 1 Burners SibCOTES no Reduction of fuel oil 90 % no no 4 – 15 1 The introduction of universal burners will significantly improve the efficiency of coal-fired thermal power plant units through integrated solutions in coal combustion boiler units.
This mode of deep thermal preparation of coal dust flow in the volume of a burner will help to: - obtain dense gaseous fuel gasification products, which will ensure efficient operation of the combustion chamber bothat the start-up of a boiler from cold state and at low loads for lighting a torch; - obtain stabilization of combustion process; - obtain reduction of slagging surfaces by eliminating the recovery zone of fuel heat of a combustion chamber in a boiler combustion chamber volume, which will improve utilization rate of the installed capacity of boilers and increase the load to the nominal values; - obtain significant reduction information of nitrogen oxides fuel by forming reducing atmosphere in a muffle of the burner; - improve the efficiency of a boiler while reducing mechanical incomplete combustion due to better fuel burning; - use highly reactive gas coals with volatile substances more than 30 %; - involve oxidized coal in the fuel and energy balance of the country which
Analysis of the data in Table 2 shows that the technology using PGA combustion has high investment attractiveness for all technological options.
Online since: September 2013
Authors: Jing Zhang, Hai Tao Yu, Min Qiang Hu, Qi Chen, Lei Huang
TABLE I Dinding Distribution of the Pmsplg TABLE II Data of the Pmsplg One-slot Unite.
Based on the analysis in section II above, the reduction of cogging force methods in this paper are proposed: The permanent magnet’ width and height, the length of air-gap and the ratio k, where k=Ws /τp.
Conclusion This paper presents an improved permanent magnet single-phase linear generator and a cogging force reduction method based on the optimization configuration of permanent magnet and slot.
Xiang, “Reduction force control of a linear eletrical generator for direct drive wave energy conversion”, IET Renew.
Xiang, “Reduction force control of a linear eletrical generator for direct drive wave energy conversion”, IET Renew.
Online since: November 2013
Authors: Lu Quan Ren, Qing Ping Liu, Kun Chen, Wen Lei Sun, Geng Hua Liao
However, there isn’t much data about the flight kinematics of silent owl.
MX infrared camera can capture motion data and provide real-time optical data with the other components.
The Fig.1 shows the experimental field, C1~C8 are infrared cameras, which capture the coordinate data of marks.
Fig. 1 Experimental field Before the data acquisition, the spherical markers with reflective properties were placed on key parts of wings.
Data processing and analysis software is Vicon Workstation (Vicon Motion System, United Kingdom).
Online since: May 2012
Authors: Paul B. Klein
As noted by the authors, in thinner epilayers the substrate accounts for a very significant reduction in the carrier lifetime, even when the SRV=0, while for thicker epilayers the reduction in lifetime is not significant until the SRV becomes large.
The data were analyzed using an analytical approximation to the solution of Fig. 3.
Dotted lines are fits to the data assuming recombination at the surface and substrate interface for varying interface recombination velocities.
The dotted curves represent the total simulated surface recombination rate that best fits the data, resulting from carrier diffusion and from recombination at the surface and at the substrate interface.
The data fits well only for small values of the substrate interface recombination velocity, consistent with the low injection conditions and very long bulk lifetimes (>20msec).
Online since: April 2016
Authors: Meng Hee Lim, M. Dasuki Yusoff, M. Rabai Yahaya, Jamaludin Azman
Data Measurement and Experimental Procedure Vibration data measurement was acquired from two method; offline casing vibration measurement via single axis multipurpose accelerometer CTC AC102-1A 100mV/g connected to a portable vibration analyzer, CSI 2130.
Digital signal data processing setting at maximum interest frequency Fmax 2500Hz and 3200 resolution line in order to observe 1X-6X of VPF range.
Simultaneously, online shaft relative vibration data was collected via orthogonal X-Y proximity probe which hardwired to vibration monitoring Bently Nevada BN3500 module before connected to a diagnostic platform software, System 1® as shown in Fig. 3.
Online dynamic vibration data was triggered at synchronous data sampling to keyphasor shaft speed data.
Operating process parameter, suction pressure, discharge pressure and pump flow was acquired from plant installed sensing elements and transmitters which connected to Plant Distributed Control Scheme (DCS) for realtime data display and linked to historian data storage in Pi Process Book Software.
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