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Online since: September 2012
Authors: Ying Hua Han, Yu Huan Wang, Li Liu, Jin Kuan Wang, Fu Lai Liu, Xin Song
Serial data streams are converted to parallel and transmitted on different antenna in MIMO system.
A lot of efforts have been put into the search of detection algorithms achieving ML or near-ML performance with lower complexity, such as tree search algorithm, lattice reduction, chase detector, and so on.
Sheen, A new Lattice Reduction Algorithm for LR-Aided MIMO Linear Detection, IEEE Trans. on Wirel.
Valenzuela, V-BLAST: An Architecture for Realizing Very High Data Rates Over the Rich-Scattering Wireless Channel, ISSSE. 295-300. (1998)
Online since: October 2014
Authors: Ionela Cazacu, Marius Costel Balan, Andrei Burlacu, Marina Verdeș, Vasilică Ciocan, Cătălin George Popovici
Simulations were conducted that compare the resulting data in the case of using jet and induction fans and also the influence of their operation when they are influenced by the construction geometry of the underground garage.
In the case of their use, the following advantages are obtained: reducing the number of fans employed; reducing energy consumption in the system; savings to achieve the power supply system including the sizing of the reserve power supply; annual maintenance cost reduction; reduce installation time; acoustic attenuation (due to reduction of the fans numbers); fans routing form (form jet) decisively influences the efficiency of the entire system (both functionally and economically); in the case of beamed ceilings is recommended that fans should be located as far away from it.
Forney, User’s Guide for Smokeview Version 5 – A Tool for Visualizing fire Dynamics Simulation Data.
Online since: November 2018
Authors: Getahun Aklilu, Sarp Adali, Glen Bright
Data recorded in short beam shear tests was applied to find the inter-laminar shear strength of specimens at various temperatures.
The developed model was fitted with data nicely.
Average ILSS versus temperature considering experimental data, model and fit to data.
Furthermore, the degradation in the elastic modulus of measured data of C and CGC in Fig. 11 (b, d) predicated to the existing models.
Particularly, Eq. (3) and Eq. (5) modeling methods are best fit to the DMA data.
Online since: April 2014
Authors: Stanislav Rusz, Ivo Schindler, Petr Kawulok, Miroslava Subíková, Michal Cagala, Rostislav Kawulok
The castings were rolled to 2/3 of their thickness by 4 reductions with the inter-stage heating, and then annealed at the temperature of 1200 °C in the vacuum furnace for several periods.
These castings were rolled flatways on the laboratory four-high mill stand K350 by 4 reversible height reductions (9% – 9% – 9% – 10%) to nominal thickness of 13.3 mm.
a) uniformity of grain size documented at small magnification b) detail of grains (polarized light, Nomarski prism) Fig. 6 Microstructure of the rolled product subjected to homogenization annealing for 7 hours Average grain size after homogenization annealing of the alloy Fe-40at.% Al-Zr-B is of the order of 10-1 mm, which corresponds more or less with the data in [16] – grain size of approx. 50 µm after recrystallization annealing conducted at relatively low temperature of 900 °C.
The castings were rolled to 2/3 of their thickness by 4 reductions with the inter-stage heating at the temperature of 1200 °C, and then annealed at the same temperature in the vacuum furnace.
Online since: June 2017
Authors: A.S. Yanyushkin, D.V. Lobanov, Vadim Skeeba, Pavel V. Arkhipov
This leads to substantial reduction of cutting power as compared with other methods.
Reduction of efficiency and quality is associated mainly with clogging of the diamond layer by treatment output and, consequently, with loss of cutting capability.
Results and discussion The research and subsequent statistical processing of the data obtained show an adequate mathematical power relation between cutting metal-bonded diamond circles and electric modes of combined electric powered diamond processing.
This leads to substantial reduction of cutting power as compared with other methods.
Online since: November 2012
Authors: Hong Chun Sun, Yuan Cheng You
The method based on the strain modal damage index can overcome the disadvantages of low sensitivity, but method based on most of the strain class damage index can only find damage localization [5] and the prevalence of a fatal weakness, that is required to use before and after the modal structural damage data, while the modal acquisition data before the damage is very difficult.
Based on the strain modal damage index method overcome the disadvantages of low sensitivity, but most of the strain class damage index method only can find damage localization, and the prevalence of a fatal weakness that is required to use before and after the modal structural damage data, but it is very difficult to get accurate modal data before the damage.
Gu Peiying [12] first proposed the original modal data is based on the principle of damage strain modal differential ISMSD direct indicator of the damage location method and criteria, this method overcomes the traditional damage diagnosis must be the weakness of the modal data in the application before damage, positioned directly under the strain modal data after the damage.
This method does not require any data before the structural damage.
Bernal [18] verified the DLV method by using actual statistical data.
Online since: June 2012
Authors: Yoshihiro Nishimura, Takayuki Suzuki
The time series of wave data were measured from the sample with an internal flaw and could be converted to 3D-images of the internal flaw using the response function successfully.
The amount of calculation to derive the distribution function of the reflection coefficient from the measured signal data can be significantly decreased by Fourier transformation [7].
The time series of data was sampled by an EMAT probe with an operating frequency of 5 MHz and AD/C (Analog-digital conerter: Aqiris DP214) at 400 MHz.
The observed time series of data was very noisy (Fig. 4 (a)) because of Barkhausen effect and required signal processing to identify the signal reflected from the internal flaw.
An example of the time series of data invese-solved using Eq.5 is presented in Figs.10 (a) and (b). 
Online since: October 2011
Authors: Jin Ying Li, Chun Lian Zhang, Jun Li Tian
Introduction China is facing unprecedented pressure on CO2 emission reduction.
According to the data of Carbon Dioxide Information Analysis Center, China has become the world's second largest country on CO2 emissions after the United States[1], while the U.S.
The Data Selection and Processing On economic growth and energy consumption analysis,we choose GDP and energy consumption as variables.
In order to eliminate data heteroscedasticity, we use logarithmic data.
Data from China Statistical Yearbook 2009 and the National Bureau of Statistics Web site.
Online since: November 2020
Authors: Karna Wijaya, Akhmad Syoufian, Mohamad Mirzan
To create nano Ni/ZrO2-bentonite catalyst, ZrO2 pillared bentonite was impregnated using Ni(NO3)2•6H2O precursor first, then followed by calcination and reduction.
Calcination stage subsequently ensued with N2 gas flow at 500 °C and reduction with H2 gas flow at 400 °C to obtain nano Ni/ZrO2-bentonite-3 catalyst.
This data denotes an increase in the number of acid sites after impregnation with nickel.
Based upon the pore size distribution data of bentonite and nano ZrO2-bentonite the materials obtained mesoporous pore size.
Similar phenomenon was also shown in the observation of specific surface area which increased significantly after the bentonite pillarization stage as shown by the BET data [9,17].
Online since: December 2024
Authors: Somchai Sonsupup, Naphat Albutt, Panakamon Thonglor, Tanayt Sinprachim
In addition, the electrochemical reduction of flawed graphene sheets has greatly limited the oxygen groups, making the material more conductive or enhancing signal.
Furthermore, we attributed the EIS mode to a reduction in the charge transfer resistance, which was caused by the application of a susceptible pre-treatment on the electrode surface.
Electrochemical impedance spectroscopy (EIS) of AuSCPE, MNPs and MNP_BSA (a), (b) linear fitting data, and (c) Randles circuit model.
The data recorded by the oxidation current peaks to a linear model using the equation I = 0.6965x+9.925, with R2 = 0.8712, can be found in Fig. 3(b).
The current peak results were 12.592 µA, 8.737 µA, and 7.346 µA for AuSCPE, MNPs, and MNP_BSA, respectively, indicating that the data decreased continuously as shown in Fig. 4 (b).
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