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Online since: February 2011
Authors: Zhao Cheng Yuan, Fu Quan Zhao, Hai Bo Chen, Jia Yi Ma
The model developed was validated against experimental data obtained in this research.
The numerical simulation results were found to agree well with the experimental data.
The model developed was validated against experimental data obtained in this research.
The simulation results were found to agree well with experimental data obtained in this research.
Results and discussions The model was validated against experimental data obtained in this research.
Online since: December 2014
Authors: Xia Yao Zhao
Based on the issue of the Corona Loss that generated in EHV and UHV transmission process, the work is about energy saving, emission reduction, and creates a kind of electric-corona-prevent paint which is suitable for both the super high pressure transmitting wires and metal equipment .
The first brushing, brushing with a vernier caliper to measure the coating thickness of approximately 1mm, for the first time after the coating composition of each wire was subjected to corona loss measurements, the experimental data recorded on a wire coating with the formulated coating , the wire coating thickness of about 2mm, again measured corona wire loss, record experimental data.
devices, real-time record for the experiment leads, photographs selected part as follows: Fig.3 70kv Smooth wire coated charcoal 1cm 71kv Spray paint anti-corona wire Fig.4 115kv Smooth wire coated charcoal 1cm 120kv Spray paint anti-corona wire Table 1 Worn wires before spraying paint and spray paint after power loss Test voltage Spray paint before corona loss After spray paint corona loss 57.27205kv 0.80428W/m 0.60423 W/m 66.23049kv 0.43070 W/m 0.22768 W/m 76.62624kv 0.09618 W/m 0.59820 W/m 86.99675kv 1.44390 W/m 2.05128 W/m 98.13895kv 4.73870 W/m 3.50401 W/m 109.50882kv 12.50034 W/m 6.18422 W/m 115.65982kv 20.61899 W/m 11.39033 W/m 122.60420kv 32.15878 W/m 22.13080 W/m 130.30954kv 49.15233 W/m 45.82654 W/m We draw the wire to prevent the effects of spray paint around the corona power losses, as well as different influence of coating thickness will inception voltage: Fig.5 The experimental results are plotted The resulting analysis of experimental data
Online since: July 2011
Authors: H. Yang, Jie Du, Y.J. Yan, S.Y. Gu, Z. C. Zhou
The height of P1 and P2 peaks is decreased with increasing aging time, which is due to the reduction in the disorder degree of the air-cooled specimen.
The whole measurement is controlled by an IBM* 586 computer and an 8087 processor, and the data can be processed in real time.
Therefore, the decrease in the disorder degree will result in the reduction of P1 and P2 peaks in their height.
They will be annihilated when the air-cooled specimens are aged at 350oC or their internal friction is measured during heating, resulting in the reduction of vacancy concentration.
Online since: August 2013
Authors: Zhong Jun Fu, Feng Song, Zhao Jun Wang, Hong Wang
The results could provide a strong technical basis for the reduction and recycling-separation of the renewable waste lubricating oil, and also for the energy-saving and emission-reduction.
According to the flow rate and film thickness distribution formula to calculate the liquid film thickness under different feed rate conditions, the liquid film thickness data from the formula is consisted with the actual conditions.
Online since: June 2014
Authors: Chun Rong Xue, Yu Qin Gu, Ming Liang Zheng
The design of the top contact involves the minimization of the finger and busbar resistance, and the overall reduction of losses associated with the top contact.
Figure 2 shows the reflectance data as a function of wavelength for MgF2, Si3N4, TiO2 single-layer ARC on Si substrate, which shows the reflectivity on bare silicon surface is more than 37%, and the single layer ARC deposited on silicon substrate reduces the reflectivity greatly.
Top contact design in a solar cell The design of the top contact involves the minimization of the finger and busbar resistance, and the overall reduction of losses associated with the top contact.
Online since: September 2013
Authors: Dao Fei Zhu, Jian Jun Wang, Hua Wang
Finally, EMS provides a unified data platform for the automatic control system of all energy equipments for data archiving.
The data-acquisition subsystem contains the data standard interface of the industrial control unit which accords with OLE for Process Control (abbreviated OPC) standard, and the real-time data-storage system.
The function of data warehouse and data processing EMS has the capacity of data extraction, cleaning, transformation, integration and load.
After data cleaning, the required data extracting from a real-time database are loaded into a data warehouse according to the predefined data warehouse model.
Based on the time, product and energy medium, the multidimensional data warehouse, energy consumption and index data warehouse are established in EMS.
Online since: July 2011
Authors: Yong Chen
Additional benefits to arm motion such as reduction of the impact force at landing or touch-down and reduction of the potentially destabilizing horizontal ground reaction force have been reported [4].
Kinematic observation and analysis of the human can serve as the raw data for simulation and provide insights into the jumping robot construction.
Collection of the kinematics data A high-speed video camera with the maximum speed of 500 frames per second was used to capture the motion process of the human during jumping.
The interpretation of relative momentum data to assess the contribution of the free limbs to the generation of vertical velocity.
Online since: August 2014
Authors: Mariusz Żółtowski, Bogdan Żółtowski
The processing includes: creation of numerous signal measures in time domain, frequencies and amplitudes, selection and reduction of the number of signal measures, creation and analysis of effectiveness of cause-and-effect models, as well as evaluation of the righteousness of made diagnostic decisions.
It allows acquiring and processing measurement data, creating many measures of diagnostic signals, examining their diagnostic sensitivity, statistic processing and diagnostic concluding.
Read unv module which allows processing data from UNV format into XLS format.
Optimization module used for creating models and data in genesis (with approximation and interpolation methods), diagnosis and prognosis of object states.
Cause-and-Effect Modeling Many state measures acquired in experiments requires the reduction of over measurement, which is possible with the use of OPTIMUM procedure (statistic evaluation of separate measures) or SVD (for the multidimensional approach).
Online since: January 2012
Authors: Xue Dong Guo, Cao Jian, Xiang Yang Fang
Test data and analysis Water content test data.
The test data of water stability.
With the further reduction of water content, the bond strength between asphalt and aggregate begins to be restored, making the splitting tensile strength increase.
With the further reduction of water content, the bond strength between asphalt and aggregate begins to be restored.
Online since: February 2012
Authors: A. Sánchez-Lite, M. García-García
This methodology initially gathers data in the plant to enable detection of critical tasks, through a primary examination of the resources assigned to the workstation, its location and use, together with the opinion of the operative carrying out the work.
For 3D design, the following types of data are needed: measurements of work machines, equipment and tools, lay-out of the workstation and set of tasks or activities which the operative performs there during the manufacturing process, as well as the nature of the material being handled.
The majority of ergonomics projects include, amongst other costs: personnel, equipment and material and the possible reduction in productivity due to implementation and study phases.
Together with these costs are the benefits which may be gained: reduction of compensation costs, increase in productivity and resource life-cycle and improvement in company image and working atmosphere.
The methodology described not only gathers technical data on workstations, but also the opinion of the operative who performs the tasks in the plant, thus providing a real insight into carrying out the process.
Showing 10141 to 10150 of 40694 items