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Online since: August 2011
Authors: Dan Zi Sun
Carbon Nanotubes-Doped Glassy Carbon Ceramic Composite Electrode and Its Electrocatalytic Reduction of Nitrite Danzi Sun1, a 1Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, China adanzisun@yahoo.com.cn Keywords: carbon nanotubes, glassy carbon ceramic composite electrode, electrocatalytic reduction, nitrite.
The electrode thus prepared exhibits electrocatalytic behavior to the reduction of nitrite and facilitates the detection of nitrite at an applied potential of 0.0 V.
A CHI 660 electrochemical workstation connected to a personal computer was used to control the electrochemical measurements and collect the data.
Electrocatalytic reduction of nitrite at the MWNTs-doped GCCE.
The resulted modified electrode shows catalytic property toward the reduction of nitrite and could be used as amperometric nitrite sensor.
Online since: September 2013
Authors: Hua Bing Wen, Jun Fang, Zhen Zhen Liu, Jian Min Dong
In order to prove the numerical simulation validity, the simulation data was compared with that of the experiments, which shows that the vibration prediction error is lower than 15% and the noise prediction error is about 5 dB(A).
The sound absorption material was pasted on the bulkhead of cabins, and the average noise reduction level achieved to 7 dB(A).
Then, the single-layer vibration isolation system was designed for the diesel engines, the average noise reduction level achieved to 5 dB(A).
So the noise reduction measures for meeting room should be carried out.
The noise level in high frequency is reduced obviously after the treating and the average noise reduction level achieves to 7 dB(A).
Online since: December 2014
Authors: Zhong Hua Wang, Wen Qi Yuan
On the emissions reduction, Treffers and others discussed the possibility of emissions reduction.
Germans want to use the emissions reduction policies to realize 80% reduce of GHG in 2050 [5].
Table 1 Standard coal coefficient and carbon emissions coefficient energy name conversion factor carbon emissions coefficient petroleum 1.4286 0.5857 Data sources: Chinese Energy Statistics Yearbook 2012 Data Description.
The relevant data was derived from the 2006-2013 petroleum balance sheets data from “Heilongjiang Statistical Yearbook” and these values are converted into standard coal.
We take dimensionless data processing in table 3 firstly.
Online since: July 2015
Authors: Sattaya Yimprasert, Ananchai Ukaew
(2) (3) Where f and are the friction factors in the pipe and the specific weight of the water, the friction factor (f) is the main data we wanted to observe.
We analyzed our data by using Numerical Curve fitting in the exponential function [12], resulting in a new equation
From the calculations illustrated in Fig.4, we defined the hypothesis trend line of experiment data as an exponential function.
We then analyzed our data by curve fitting technique using the exponential function [12], to find the relationship between flow rate in a pipe and level of water.
From data of this study, when we using polymer solution in difference concentration in pipe flow at turbulent condition, we can increase flow rate in pipe because friction between pipe wall and fluid are decrease follow the hypothesis of Drag reduction effect, in this research can show the data in Fig.7, that is a relationship of friction factor (f) in y-axis and Reynolds number (Re) in x-axis, the result show effect of polymer solution can decrease friction factor immediately by this experiment best of polymer concentration is in 30 to 100 wppm because these friction factor are decrease in closely number compare with pure water, by percentages are 35, 45, 44 and 44 % at polymer concentrations are 10, 30, 50, 100 wppm.
Online since: October 2012
Authors: Hai Bo Huang, Ting Zhang, Xue Dao Shu
It is extremely meaningful to optimize the parameters for wear reduction to extend the mold life.
The Determination of Level Data.
According to the theoretical ranges of processing parameters listed in Table 1, the data package for CWR experiments are listed in Table 2, which considers three parameters, three levels[7].
C2, the radial reduction at second level, which .
The stretching angle is the prior considered factor for mold wear reduction , which should be as small as possible.
Online since: December 2006
Authors: Eui Jung Choi, Chan Lee, Jun Ho Lee, Woon Joo Yeo, Je Wook Chae
A Study on Bore-sighting for the Error Reduction of the XK11 Woon-Joo Yeo1, a , Je-Wook Chae 1, b, Chan Lee 1, c , Eui-Jung Choi1, d and Jun-Ho Lee 1, e 1 Agency for Defense Development, Yuseong P.O.
Image processing method with Charged Coupled Device camera is chosen for the Error reduction of bore-sighting.
� Noise Reduction Erosion Erosion is used to get rid of the remained noises after Binary-Coded work
So dilation is used to restore the laser points reduced by the erosion for noise reduction
{ }ˆ( )z A B z B A ⊕ = ∩ ≠ ∅ (3) Labeling The work dividing the data cognized two laser points to only one color called Labeling.
Online since: February 2019
Authors: Yosuke Iijima, Yasushi Yuminaka
Figure 1 shows an eye-diagram of a Pulse Amplitude Modulation (PAM)-4 data transmission on a micro-strip line.
To calculate the data at twice the symbol rate, the transmit data is held for T sec by a delay element.
Figure 4 shows the simulation results of a PAM-4 data transmission using DTHP at 2 GS/s (Symbol/sec) on a 1-m-long micro-strip line.
The transmitter data can be demodulated at receiver by using modulo reduction.
Yuminaka, “Double Rate Equalization Using Tomlinson-Harashima Precoding for Multi-Valued Data Transmission,” Proc.
Online since: August 2013
Authors: Ze Hong Li
The power structure optimization, energy conservation and emission reduction will become the two major focus.
Then, is hydropower of Guizhou will not be able to make new contributions to emissions reductions?
Therefore, centralized data exchanges have been adopted to resolve the problems of varied software and hardware compatibility, resource sharing and data security.
With the electric power data network as basic network and the satellite communication as standby network, the redundancy requirement of different networks has been satisfied.
Acting as a communication bridge, the data exchange platform has been developed to connect automation systems in centralized control center.
Online since: July 2011
Authors: Marek Sibielak, Waldemar Rączka, Jarosław Konieczny
The parameters of the spring model have been determined, based on the experimental data.
The mathematical model developed may be applied in the design of passive, semi-active, and active vibration reduction systems, as well as in the synthesis of adaptive smart vibration reduction systems.
Shape memory alloys are also used as actuators in active vibration reduction systems.
This article discusses the use of SMA springs in vibration reduction systems.
Et=cA2ω202πωcos2ωtdt=cA2ωπ (7) Therefore, the damping coefficient may be determined on the basis of formula (8), where energy Et has been determined on the basis of experimental data.
Online since: May 2020
Authors: Vladimir A. Gol'tsev, Vyacheslav A. Dudko, Boris P. Yur'ev
The middle zone – is the reduction one.
Content, % Reduction Degree, % Notes Fetotal FeO S CaO SiO2 MgO Femet. 1 56,3 38,6 0,05 0,5 2,5 17,5 – 18 Whole lump average sample 2 60,2 48,2 N/A 6,0 3,6 22,9 26,5 58,2 Upper layer 61,3 64,0 0,004 5,2 3,7 22,6 24,7 60,0 Intermediate layer 58,3 55,1 0,003 5,2 3,7 22,6 17,7 51,0 Lump core 3 64,5 51,5 0,005 0,5 0,2 24,7 24,8 58,5 Whole lump average sample It follows from data of Table 3 that decomposition in argon atmosphere results in FeO and Fe3O4 oxide mixture with the composition of .
The obtained results agree completely with the work data [2].
As is seen from data of Table 3, ferrous oxide content increases and the metallic iron decreases from the sample surface to the center, what is indicative of significant diffusion resistance in the ore sample with the size of 45 – 50 mm.
Experiments were carried out to obtain data on the ore firing in the neutral atmosphere (argon) on the samples with the dimensions of 12 – 15 mm.
Showing 881 to 890 of 40694 items