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Online since: July 2017
Authors: Wei Hu, Shu Zhen Yang, Wei Peng
I- can be regenerated by the reduction of I3- at the counter electrode Pt.
The second is data loss should be as less as possible.
The conventional two steps method (smooth and derivation) is integrated into one step, and due to lessen the data loss distinctly during the data processing, the data accuracy of VRDS technique are much higher than traditional way.
Because the recorded voltage data are discrete and fluctuant by using the conventional smoothing differential approach, the most serious impairment is the lifetime data having to be truncated in order to keep the least squares value, which would lead to much data loss and larger deviations.
Then the data processing will be performed as the r increasing, the bigger r obviously better suited to smooth the low voltage section for the high data density.
Online since: May 2011
Authors: Hua Gao, Ying Xu, Li Guang Zhu
Calculation principle Decomposition voltage may be computed by the thermodynamic data.
、TT 、、 and Cp can be searched by the relevant the thermo-dynamic data manual[2,3].
The EMF of reactions in inert anode In order to meet the environmental protection and the cost reduction, the research on inert anode[4,5] should be one of the directions in electrolysis.
According to the thermodynamic data, and of Eq. 6- Eq. 9 could be computed.
Online since: April 2011
Authors: Xiao Jiang Ren
In Okono (1999), “informationization” was defined as the explosive increase in the volume of information resulting from the dramatic reduction in data management and transmission costs.
Problems like non-uniform data format, data redundancy, and waste of resources always appear
Online since: May 2011
Authors: A Lan Jiang, Mei Xia Wang
In many cases this is not sufficient for settlement reduction, especially if there is a risk of high cyclic/dynamic loading.
Filling the end of settlement cloud Observation data accumulation finally arrive at settlement observation changes with time graphics, see Figure 6.
Figure 6.The settlements in the DK369+520 with days 5 Conclusion Based on the measured data and the simulation results obtained the following conclusion: (1) In the cross section of embankment, the settlement rate reduce, the late settlement is basically stabilized.
(4)Through comparing the data of two aspects, we think that this model can better reflect the soft soil subgrade settlement process.
Online since: August 2013
Authors: Jin Yu Zhang, Hai Bin Chen, Li Jie Ma
By bending test at low temperature, according to the stress - strain diagram drawing test data can return to the three type.
And based on the experimental data, with AC-16 asphalt mixture mixture as an example, draw in the three conditions of temperature stress strain diagram.
different test temperatures(kj/m³) Temperature (℃) stress (MPa) strain (mm) stiffness modulus (MPa) damage energy (kj/m3) average value (kj/m3) -10 7.622 0.001411 5402 0.005223 0.006078 10.926 0.001182 9243 0.006713 8.823 0.001209 7298 0.006298 -20 10.736 0.000923 11627 0.004924 0.004787 9.303 0.000992 9383 0.003841 11.248 0.000896 12552 0.005596 Table 3 The damage energy of the admixtures asphalt mixture at different temperatures (kj/m3) temperature (℃) stress (MPa) strain (mm) stiffness modulus (MPa) damage energies (kj/m3) average (kj/m3) -10 8.523 0.003294 2510 0.013523 0.013239 7.293 0.003203 2277 0.013349 6.185 0.003413 2691 0.012867 -20 9.954 0.002136 4661 0.011361 0.011419 10.171 0.002002 5080 0.009184 10.431 0.002250 5525 0.013714 Fig. 2 The Stress-strain curve of AC-16 admixtures asphalt mixture at -100C Fig. 3 The Stress-strain curve of AC-16 admixtures asphalt mixture at -200C As can be seen from the experimental data
: As the temperature decreases, the units damage energy of asphalt mixture can have a corresponding reduction, For example AC-16 admixture asphalt mixture, when the temperature dropped to -100C, the damage energy of the mixture reduced to 0.013239kj/m3, when the temperature dropped to -20 0C, the damage energy of the mixture reduced to 0.011419kj/m3.It sescrips that as the temperature decreases, ability to resist deformation of asphalt mixture becomes weakened, deformation from viscous excessive to almost perfectly elastic.
Online since: September 2013
Authors: Ai Min Liu, Wen Jun Cao, Yi Qing Zhang
Two semiconductor LDs with wavelength 640 nm and 750 nm were used to identify the IS data for different sub-cells, All the IS data were analyzed by the Z-view software. with frequency range from 0.1Hz to 1 MHz.
Result and discussion The Z″–Z′plots of sample measured in dark and under LED illumination are shown in figure 2, For the data from 640 nm LD illumination, the obtained R and C of the three sub-cells could be compared one-to-one with those measured in dark, according to the constancy of capacitances (changed weakly by illumination). and Ct were identified.
For the 750 nm illumination, the reduction of was much more remarkable.
Online since: August 2014
Authors: Xu Li, Hui Juan Wang, Yuan Yu
It enables geographically dispersed users copolymer one place, communicate through sounds, images, text and other ways to support people in real-time long-distance to exchange of information.With video conferences technology matures, a variety of forms of communication such as audio, video, text, data sharing as one of the video conference, so that more and more people began to enjoy the online office, medical, communications, training, remote collaboration and other new modes of operation.
It is designed greatly reducing the amount of audio data.
LAME is the best MP3 encoder, MP3 encoding space out wide, clear bass, tone Chunhou, details of the performance is good, it's original sound mental model reduction techniques to ensure the authenticity of the audio CD, with VBR and ABR parameters almost comparable to CD quality audio.
Without a fixed bit rate, determined according to the compressed audio data for real time what the bit rate, which is a prerequisite both for the quality of the file size, the recommendation coding mode.
Online since: October 2014
Authors: Mao Ren Li
This project is mainly used in the comfort air conditioning system, replacing the conventional indoor air conditioning using fan convection cooling form, directly to the traditional air conditioning evaporator by convection heat transfer to type into the radiation heat transfer form, using modern new polymer composite material as the main body of the evaporator, the refrigerant cycle, in the mature theory of refrigeration the design of conventional air conditioning operating conditions of vapor compression on the overall setting of air conditioning design, exploration and design with the radiation air conditioning system technical requirements, the radiant cooling refrigerant system the data acquisition, development and design of intelligent controller and related problem of air conditioner indoor dew point control, thus the formation of completely based on the prototype structure of energy-saving radiation cooling technology of comfort air conditioning.
System whether normal operation and to carry out corresponding performance testing, software system and debugging methods preparation is very important, as the experimental control system, the control system should not only consider the rationality and accuracy of data acquisition, but also through the software program to control the excellent performance and scalability, and fully consider the characteristics of analysis experiment requirements.
(3) Design structure of control system hardware, including: sensor amplifier circuit, actuator drive interface part; write refrigeration operation program and the corresponding cooling components including data collection, variable frequency drive, the throttle control module
(2) according to the results of the present study the radiation heat transfer, the basic known radiation cooling energy-saving features, central air conditioning system which using chilled water heat radiation cooling have been applied in many engineering application achieved significant results, its energy-saving performance data that has been proved, and is a very good body comfort effect.
Conclusions Radiation cooling system, with each other and displacement ventilation air conditioning or other combination, especially semi centralized air-conditioning system of evaporative cooling and radiation cooling with evaporative cooling technology, because of the zero cost, consistent with national energy-saving emission reduction policies, has broad market prospects.
Online since: March 2014
Authors: Andrea Corvi, Sara Matteoli
The challenge is to make ocular thermography part of the daily diagnostic procedure by providing more and more reliable experimental data.
Furthermore, each subject was asked to fill a questionnaire regarding personal data as well as general and ocular anamnesis.
By normalizing data it was possible to calculate the cooling rate for both groups: 0.09%/s for ATD patients and 0.26 %/s for EDE patients.
Preliminary data highlight a higher OST in eyes affected by malignant lesions, but it is still difficult to differentiate between malignant and benign lesions.
Falaschi, et al., Ocular surface temperature in central retinal vein occlusion: preliminary data, Eur J Ophthalmol. 17 (2007) 755-759
Online since: June 2014
Authors: You Ming Shi, Cui Qiong Yan, Fen E Hu, Sheng Xian Wei
These results can provide some useful experimental data support for the application of the all-glass evacuated tube solar collector integrated into the wall of the high-rise buildings.
The test data were recorded every 10 minutes by the solar water heater thermal performance test systems TRM-2.
Experimental data and relevant parameters of the all-glass evacuated tube solar collector fixed at different tilt angles are listed in Table 2.
The data in Table 2 show the variation of the ambient temperature and the wind speed do not exceed 2.0˚C and 0.3m/s for a fixed tilt angle.
Table 2 Main experimental data and the daily thermal efficiencies Date Tilt angle (°) Daily ambient temp.
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