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Online since: August 2014
Authors: Ladislav Vargovčík, Jaromir Jezný, Frantisek Šofránek, Juraj Šarloši, Robert Surovec
Communication with the control station, including image transfer, is based on wireless data connection (Wifi standard).
All sensors are connected to the I/O pins of module FPGA on sbRIO platform, which provides data processing and communication with the sbRIO parent system.
Data processing includes: - communication interface handling (SPI and RS422) - data filtering using FIR filters - angle speed integration for orientation determination, calculations of chassis plane tilt, sensor calibrations - magnetometer processing – calibrations, normalizing, ellipse fitting The used GNSS receiver with the calibrated antenna is able to determine the location in open space with an accuracy of +/-1,5m, with RTK algorithms active, precision is increased to tens of centimeters.
This map provide input data to other proposed algorithms for ensure smooth movement – changes in speed of travel, changes in ride height adjustment, automatic step length calculations, etc.
The data obtained from sensors are used in security algorithms (e.g. stability of chassis) and to simplify the complicated control of the machine (locomotion), but also to visualize the status of the vehicle for the purposes of the operator (orientation and position overview).
Online since: December 2007
Authors: Sheng Yi Li, Shan Yong Chen, Yi Fan Dai, Zi Wen Zheng
The principle is based on the fact that compensated phase data in the overlapping area between two subapertures should be maximally consistent.
Since the rigid motion group acts on the three-dimensional (3D) Euclidean space, all phase data are first transformed into the 3D Cartesian coordinate frame.
Therefore our proposed algorithm stitches Cartesian coordinates instead of direct phase data.
The measurement data of the interferometer are triplets W=(u,v,φ), where φ denotes the phase difference on the pixel (u,v).
Because the nominal surface is used, it is helpful to simultaneously localize the fullaperture data set with regard to the nominal surface.
Online since: September 2011
Authors: Chuan Yi Zhuang, Lin Wang, Ai Qin Shen
ALF consists of testing facility and data acquisition system, shown in figure 1.
Testing facility exerted loads on the pavement [7], and data acquisition system measured the parameters and pavement condition synchronously, which included surface deflection, pavement dynamic response of the pavement structure, rutting and cracking.
But pulse time is greatly affected by pavement structure and thickness, this model does not take into account pavement thickness, and the sample size is limited, so we need further calibrate and revise the formula with more data of ALF and LTPP
(5) The model of stress pulse lasting time and strain response with speed were put forward separately, but it needs more data to validate.
Journal of Traffic and Transportation Engineering, 8(3):37-42(2008, In Chinese) [9] Yong-shun Yang, Lin Wang, Jin-cheng Wei and Shi-jie Ma: Typical Pavement Structure Dynamic Response Data Collection and Analysis under Heavy Vehicle Loading.
Online since: September 2012
Authors: Hong Yang, Jin Sha Yuan
A second aspect is that the data available to regional prediction models is not necessarily as complete as that available to single wind farm models.
Here denotes the input data, available at time t, which can be linked to wind farm .
Here denotes additional input data not specifically linked to a wind farm.
In this case, the regional model takes as input all available input data and directly computes the regional power production forecasts.
Second, the direct approach is very difficult to build the direct model because the number of input data in a region.
Online since: February 2014
Authors: Yang Zhao, Jian Wu, Shi Feng Geng
Besides the function of cruise control system, ACC system acquires environmental information using frontal radar or maybe some visual sensors to find the possible target car, and from data such as relative velocity and range between the target and host cars, the system will maintain a desired distance between cars [1].
The establishment of the coordinate used to record and analyze trajectory is based on some data from host car (yaw rate and velocity) and the radar, the coordinate will be updated intermittently to ensure the accuracy, and it will be always approximately parallel to part of straight path that the host have passed by. 2.
The pre-judgment will operate each time when enough data points (npj points) are acquired.
The pre-judgment will run once each time when the system acquires enough data points (npj points) of each car.
[6] Philip, R.: Data Reduction and Error Analysis for the Physical Sciences (McGraw Hill Higher Education, 2002)
Online since: December 2010
Authors: Ying Hui Cao, Li Li He, Yan Chun Liang, Cheng Quan Hu, Yu Jiang
So to wireless sensor network, 128 bits encryption of key AES can ensure the safety of up-loading data.
And the working steps are as follow: (1) Splitting the data needed to send into several pieces.
And create a data frame for every data segment
(2) Then send the first data segment in the default channel
(5) If the node receives the other node’s sending data frame, it will send a response message back.
Online since: September 2013
Authors: Xian Feng Chen, Wei Min Zhang
Introduction According to the data for the year 2010, industry consumes about 27% of the generated energy [1].
(8) The determination of the energy efficiency at full load is based on the operation of the rated data of the drive regarding rated voltage and rated current and which operates at its rated point.
Thus, at full load, the active power at the output of the converter is: (10) The power consumption of the drive at full loadcan be found in the technical data of the catalogs or operating instructions for drive.
This method needs only a few drive specific data and provides, nevertheless, enough exact results for the drive efficiency in dependency on the output current and the output frequency of the driver responding in dependency on the torque and the speed of the connected and to the driver data adapted motor.
These signals act on monitoring channels (signal switch-off paths, data cross-comparison) which are stored separately in the firmware in both the control unit and the motor module.
Online since: May 2011
Authors: Zhi Rui Wang, Charles C.F. Kwan
The strength increase due to the reduction of grain size generally follows an inverse square root relationship, also known as the Hall-Petch relationship.
Similar with the influence on the monotonic deformation behaviour, the reduction of grain size also brings similar influence on the cyclic deformation behaviour.
Severe plastic deformation is a category of grain size reduction techniques with great potential to produce fully dense bulk work pieces with sub-micron grain size (uf or possibly nc).
Another technique under the severe plastic deformation category is ARB, introduced by Saito et al. [11, 12], in which the work piece is rolled multiple times to very high reduction in each pass, usually to 50% reduction in thickness.
In order to compare the stress controlled tests and plastic strain controlled tests data, an approach used in ref. [29] was adopted where the plastic strain amplitude of the first cycle of the stress controlled tests is plotted on the abscissa on the same plot as the plastic strain controlled tests.
Online since: September 2013
Authors: Bo Zhang, Wen Cai Wang, Chao Ping He, Hui Zhao, Ya Chen Li
Shigertai coal mine using adit and inclined joint development, coal mine using combined ventilation, The operation mode of the main fan is draw out type, model of mine main fan is FBCDZ NO.36,800KW, main fan blade angle is -30.Mine is low gas mine, essential elements of underground air is nitrogen sources, The data shows that the coal seam prones to spontaneous combustion, the coal dust is explosive.
First of all ,the fundamental parameters of mine ventilation system has been measured, and combined ventilation system with the network diagram (see Figure 1), According to the measured wind airflow resistance in the road, and other data is simulated computation.
As shown in table 3, analog calculating derived Shigetai coal mine coal 3 underground air distribution and air stations measured data in line.
So the ventilation network diagram and data can be used for the basis for balanced ventilation system optimization of mine ventilation simulation solution.
Making sure that the ventilation capacity subject to minimize the growth of its ventilation resistance, to present the parameters of mine ventilation system based on fundamental data, using principles of balanced ventilation for the computer simulation of mine ventilation system of calculation, as shown in table 4.
Online since: September 2013
Authors: Yan Ling Wu, Yan Ping Ding, Chuan He Wei, Eiji Kobayashi, Shimon Sakaguchi, Takaaki Koshiba
Despite the significance of miniature swine as a preclinical model, only limited data are available regarding the existence of a porcine counterpart to the murine or human Tregs.
The absence of FOXP3 in both mice and humans thus causes a fatal immune proliferative disease, as a consequence of chronic T cell activation, whereas FOXP3 over expression in transgenic mice results in a reduction in the mature T cell population and diminished T cell function.
Our data demonstrated that CD25high+ in miniature swine peripheral blood expressed FOXP3 at an extremely high level, compared to CD25low+.
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