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Online since: June 2013
Authors: Fritz Klocke, Sergej Rjasanow, Marvin Fleck, Richards Grzhibovskis, Fabian Schongen, Patrick Mattfeld
Experiments of the examined lateral extrusion process provide data for the verification of the investigated process simulation models.
Still a stress calculation inside the BEM domain is possible based on the boundary data.
CAD data of tool and workpiece design of the lateral extrusion process was used to create the geometry for the investigated process simulation models.
To achieve the model requirements, the imported geometry data was further processed.
The comparison with experimental data proved the validity of the FEM/BEM model and the calculated results.
Online since: June 2013
Authors: Wen Ke Yao, Jin Qi, Cheng Chen, Can Qun Yang, Qiang Wu
Then, we propose three optimizations to improve the performance: data prefetching to hide the data latency, vector register reusing, and SIMD-friendly reduction.
Our contributions are as follows: 1) Exploit data level parallelism of PQMRCGSTAB on each core of Xeon Phi via 8-way SIMD extension. 2) Employ multiple threads across to exploit threads level parallelism of PQMRCGSTAB algorithm on Xeon Phi. 3) Propose several optimizations: (1) data prefetching to hide the data latency; (2) vector register reusing, and (3) SIMD-friendly reduction.
Then write back data from register to memory.
If VPU issues data pack and unpack instruction repeatedly, it will be waiting for data and idle.
Then, we carefully design optimizations to match the capabilities of the architecture including data prefetching, vector register reusing and SIMD-friendly reduction.
Online since: June 2011
Authors: Xiang Chen
There exists a universal method of finding regularities in data sequences.
Relevant Optimization Since the detection method requires finding k nearest neighbors on each class, we need o(n) distance computations, per each point to be diagnosed, where is the number of data points in the normal data set.
Moreover, to find out the k nearest neighbors for the normal data set, we require o(n2) comparisons.
In Table 1, building time denotes the time for calculating the strangeness and p-values of training data, detection time represents the time for diagnose all the test data.
Manuel, “Using Evolutionary Algorithms as Instance Selection for Data Reduction in KDD: An Experimental Study,” IEEE transactions on evolutionary computation, pp.561-575, 2006.
Online since: February 2016
Authors: Yoon Deuk Seo, Jin Ho Ahn
Big Data platform performs the function of collecting and processing big data.
Data Collector module collects data of social media to be used for risk prediction.
Data Processing module processes the data requested in the classification system for risk prediction.
Warren, Big Data: Principles and best practices of scalable realtime data systems.
Palpanas, Survey on mining subjective data on the web, Data Mining and Knowledge Discovery, 24(3) (2012) 478–514
Online since: October 2010
Authors: Lei Chen, Jing Jin, Hui Wei Duan
The data was obtained by the TGA, SEM and XRD.
The system is composed of two interconnected separate reactors, a reduction and an oxidation reactor.
Reduction ambience was H2 and oxidation ambience was air.
From the figure we can see that in the first cycle the reaction rate have very good performance whether oxidation or reduction.
As for two samples, the oxidation reaction rate is higher than reduction reaction.
Online since: September 2013
Authors: Ao Xue Chen, Hai Long Liu
,Ltd,Changchun, P.R.China achenaoxue2002@163.com, bliuhailong2002@163.com Keywords: the recovery fresh air heat pump units ; energy saving;emission reduction.
cooler), which the heating (cooler) medium is water in fresh air conditioning unit.In winter,the system used the heat pump units to recovery exhaust heating and to heating the fresh air,it can reduce the heat pump unit loading,and improve the COP in conditioning of the low temperature,prolong the operation time of fresh air unit,improve the efficiency and operation time of heat pump units.The units solve the problems as the heat pump units can not work normally in the low temperature environment in the cold and serious cold regions,fresh air units always were frozen,and the indoor air quality can not be guaranteed in winter.The experimental results showed that the recovery fresh air heat pump units effectively solve the problem which fresh air units can not work well in cold and serious regions, improve indoor air quality, the system had energy conservation and environment protection effects.Comparative analysis of recovery fresh air heat pump unit in engineering application with measured data
Analysis of the emission reduction.At the present, according to the per kg contains about 7000 kcal heating (29302.3kJ ) as a standard of standard coal, and using the Index calculation of saving 1 tons of standard coal can reduces the emission of carbon dioxide about 2620 kg, sulfur dioxide is about 8.5 kg, and nitrogen oxides is about 7.4 kg, the saving quantity of the standard coal and the emission reduction of the carbon dioxide, sulfur dioxide and nitrogen oxides is shown in table 2,and different pollutants governance costs[3] is shown in table 3.
Table2 Coal save and CO2,SO2,NOX emission reduction CO2 SO2 NOX The emission quantity of 1 tons of standard coal ( uint: kg) 2620 8.5 7.4 Saving quantity of standard coal every year(unit: t) 33.74 The quantity of emission reduction(unit: t) 88.51 0.29 0.25 Table 3Different pollutants governance costs CO2 SO2 NOX Quantity ( uint: t) 88.51 0.29 0.25 Unit Governance costs(unit:yuan per kg) 58 1260 2000 Governance costs(unit: million yuan) 5.1336 0.3654 0.50 Due to the new plan, the system reduces pollutant emissions, the quantity of the emission of carbon dioxide is reduced about 88.51 ton in heating period, save the governance costs about 5.1336 million yuan, the quantity of the emission reduction of sulfur dioxide is 0.29 ton, save the governance costs about 0.3654 million yuan, and the quantity of the emission reduction of nitrogen oxides is 0.25 ton, save the governance costs about 0.50 million yuan, the system saves a lot of governance costs, as high as 5.999 million yuan , the
In consideration of environmental protection, if using the new design of engineering, the system reduces pollutant emissions, the quantity of the emission of carbon dioxide is reduced about 88.51 ton in heating period, save the governance costs about 5.1336 million yuan, the quantity of the emission reduction of sulfur dioxide is 0.29 ton, save the governance costs about 0.3654 million yuan, and the quantity of the emission reduction of nitrogen oxides is 0.25 ton, save the governance costs about 0.50 million yuan, the system saves a lot of governance costs, as high as 5.999 million yuan , the system has environmental and economic benefits.
Online since: October 2007
Authors: Urszula Narkiewicz, Waleran Arabczyk, Krzysztof Jan Kurzydlowski, M.J. Woźniak, Marcin Podsiadły, Iwona Pełech
The apparent activation energy of the reduction process of the carbon deposit was determined.
After carburisation and reduction the samples were examined by XRD and HRTEM.
Introduction Magnetic metal nanoparticles have many applications, including magnetic data storage, magnetic toners in xerography, magnetic inks and ferrofluids.
The thermogravimetric data were used to plot a dependence of the conversion degree as a function of hydrogenation time (Fig. 3a).
Diffraction pattern No1 corresponds to the sample after reduction (before the carburisation process).
Online since: January 2014
Authors: Rui Kang, Wei Jun Pan, Xiao Lin Luo, Zheng Hong Xia
Research on the Terminal Aircraft Separations based on the History Surveillance Data Zhenghong Xia, Weijun Pan, Rui Kang and Xiaolin Luo School of Air Traffic Control, Civil Aviation Flight University of China, Guanghan 618307, China 66949827@qq.com Keywords: Surveillance Data, Traffic Flow, Time Separation,Departure Landing Sequence Abstract.
Therefore, the data of ASR can not only be used for analyzing the aircraft movement, vehicles movement, but also can be used for research on the flight separations.
Effect of Runway 02L takeoffs and landings on time separation Derived from a Chinese airport field surveillance radar data in one week (12/9/12-12/15/12), the data used in this paper illustrate 5820 takeoffs and landings with an average of 830 per day and a maximum of 62 on single runway per hour.
Taking the situation in Dec. 10, 2012 as the example, the analysis of ASR data from 7:00 to 24:00 is shown in Fig 3.
Summary The ASR data indicates that traffic flow is negatively related to the flight separation.
Online since: May 2014
Authors: Ting Hang Pei, Kuen Yu Tsai, Jia Han Li, Zu Rong Liu, Chang Li Hung, Feng Chun Yeh
By our analysis from the experimental data, the speckle CR can be reduced about 25% which is close to the theoretical value of 29.3%.
Therefore the speckle reduction is highly desirable.
For speckle reduction, there are several methods proposed.
Theoretical Calculation And Simulations Of Speckle Reduction.
On our analysis from the experimental data, the speckle CR can be reduced 25% which is close to the simulation result of 29.3%.
Online since: July 2014
Authors: Bharadwaj Nanda, Aditi Majumdar, Damodar Maity, Dipak K. Maiti
A simple and robust methodology is presented to identify damages in a structure using changes in vibration data.
Damage assessment is carried out using both noise free and noisy data.
However, for noisy data, better results are obtained using TFMAC data as less numbers of false predictions are observed for this case.
Although for noise free vibration data, the results obtained for natural frequency based method is comparable with TFMAC; it fails to detect the damage at element 2 when noisy data is used.
Esfandiari, Structural damage diagnosis using modal data, Scientia Iranica, 18(4) (2011) 853–860
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