Search results

The anaerobic sludge reactor inserted in the return sludge circuit of the OSA system plays a key role for in situ sludge reduction.
Thus,sludge decay due to hydrolysis and lysis in the anaerobic tank resulted in the reduction of the excess sludge in the OSA system.
Such alternative of anaerobic-aerobic cycles stimulates the energy uncoupling which induces sludge reduction.
Candidate division TM7 is one of several newly described bacterial divisions exclusively characterized by environmental sequence data and can be found in sludge from EBPR reactor and full-scale biological nutrient removal wastewater treatment plants[14].
A reduction of 44% and 50 % was received at the organic loading rate of 0.41 kg·(kg·d)-1 and 1.13 kg·(kg·d)-1, respectively, in the OSA process.

A standard generic car body known as Ahmed body is taken to set up simulation parameters in FLUENT by validating a test case against the experimental data available in literature.
A substantial reduction in drag force of 18.8% is achieved which can be attributed to lower frontal area and streamlined bodyworks design.
In this paper a 3D CFD study is performed on Ahmed body to validate simulation parameters based on reported experimental data [1].
The percentage of reduction in the drag coefficient is calculated to be 11.5%.
This leads to a compact and lightweight battery module with a weight reduction of 6 kgs or 10%.

Because these samples were warm rolled at 480°C, acceptable confidence indices were obtained for pattern indexing even after very large rolling reductions : 80% or more of the data points presented confidence indices equal or higher than 0.1.
The Vickers hardness data, which displayed a continuous increase of HV3 from 155 after the first pass to 250 after the tenth pass, showed that no static recrystallization had occurred during the interpass reheating to 520°C.
The orientation scans presented in Fig. 1 were obtained without clean up procedures and the black regions represent data points for which the confidence index (CI) is less than the critical value of 0.1.
But in order to perform a more detailed analysis of the data, a clean up procedure was applied in the raw data.
According to this procedure, questionable data points, that could not be properly indexed, points with CI<0.1, were replaced by neighboring data points that could be indexed with sufficient confidence (CI≥0.1).

Dynamic predictive maintenance model based on data-driven machinery prognostics approach W.Z.
In this paper, a data-driven machinery prognostics approach is developed to describe machine degradation.
First, as the collected monitoring data usually contains multidimensional data sets, feature extraction is applied to obtain dominant information.
Here, and could be deduced from the history maintenance data of the system.
Comparison between the actual data and the estimated data of the 500 sets of samples In the predictive maintenance model, the related cost factors are: and .

Study Swaging Process for Reduction Swage Effect in Hard Disk Drive Joompondej Bamrungwongtaree1,a and Mongkol Mongkolwongrojn 2,b 1College of Data Storage Innovation, King Mongkut’s Institute of Technology Ladkrabang, Thailand 2Department of Mechanical Engineering, King Mongkut’s Institute of Technology Ladkrabang, Thailand ajoompondej.bamrungwongtaree@seagate.com, bkmmongko@kmitl.ac.th Keywords: Ball Swaging, Finite Element, Head Stack Assembly, Spacer Key, Boss Tower Abstract.
Furthermore, the reduction of arm deformation and gap to arm cause increasing in HSA performance.
The new design of arm aperture is able to apply with thinner arm for reduction of the arm tip deformation and gap to arm.
Joompon: Effect of the Spacer Key to HSA, 3rd International Conference on Data Storage Technology, Bangkok, Thailand, 2010, pp.131-134 [8] B.
Joomponladej: A Development of modeling for Resonance Analysis, 4th International Conference on Data Storage Technology, Bangkok, Thailand, 2011, pp.108-111 [10] A.

Area Reduction Extrusion is another straightforward method of reducing a bar's cross-section.
These changes have not been fully characterized, but experimental data is useful here to examine the additional load induced by reducing the exit channel height.
The data is fitted with a log function, the purpose of which is to demonstrate that reducing the exit channel to facilitate 90o re-insertion requires little additional load, as it is essentially a tilting of the shear zone.
Simplified cross-section of area reduction die with 10 o throat angle.
Area reduction punch load and pre-reduction hardness for assorted materials.

Therefore, staffs of HeShan environmental monitor station started monitoring from 2002, and have accumulated large amounts of observed data.
This paper made statistical analysis of precipitation data from the HeShan environmental monitor station, in order to study the time and space distribution characteristics and the and differences pattern, to provide help and theory for acid rain con. 2.
Results and analysis There are 442 observation samples in nearly nine years 2002-2010, and only some of the monitoring data in 2002, 2003 , not monitoring to acid rain in 2002, 2003, 2009, 2010 years.
The data can be seen, the acid rain in the space distribution and urban appear less, the suburbs appear more.
So, one of the effective ways of managing acid rain is pollution prevention and waste reduction work.

Therefore, speckle noise reduction plays a major role in InSAR processing by using interferogram filtering.
Introduction InSAR technique is a powerful tool to generate Digital Elevation Model (DEM) of the target area, using phase information extracted by conventional SAR image data as the input.
Conclusion This paper implemented and compared Goldstein filter, rotating kernel transformation and Lee filter for interferogram SAR noise reduction.
In general, the effect of noise reduction is better when the algorithm is more complicated led to larger computational complexity.
However, more experiments need to be developed for testing repetition times, in order to acquire optimized balance between lower computation and better noise reduction effect.

(7) The least square method was used to fit the data obtained from plot of versus 1/T, and the activation energy E can be calculated from the slope of the fitted data.
The data corresponding to 1423~1473 K and 1573~1623 K were used to calculate the activation energy values of the initial and the final oxidation stages.
Conclusion Ultrafine powders of β-Sialon were synthesized by the combined sol-gel and microwave carbothermal reduction nitridation method and their oxidation mechanism was investigated.
Wendworth, Kinetic analysis of thermogravimetric data, Anal.
Zhang, Preparation and artificial neural networks analysis of ultrafine β-Sialon powders by microwave-assisted carbothermal reduction nitridation of sol–gel derived powder precursors, Adv.

OFDM can achieve high data rates with achievable complexity.
Cipher generators at each location create high data rate "random" optical bit streams (cipher) from the specified key at the same bit rate as the data stream to be encrypted.
The optical cipher and data bits are then combined by an exclusive-OR operation at the data rate to generate the encrypted bits.
Finally, the encrypted optical data stream is transmitted to the receiving point.
In fact, the complexity of the all-optical encryption system remains relatively constant as the data rate increases, thus making the system the most attractive at the highest data rates.