Search results

Introduction High-precision thermophysical property data of liquid metals are of scientific as well as technical importance.
Furthermore it is possible to undercool the liquid metals below their solidus temperature due to the reduction of heterogeneous seed-nucleation - measurements in the undercooled state are possible.
Schematic drawing of a 1g - FFT-spectrum (FFT-Amplitude vs. oscillation frequencies) conditions on earth Video camera CCD 1550°C Pumping unit Gas supply Data acquisition Pyrometer vacuum chamber T-t.
The reduction in (dσ / dT) is even more drastic.
Wunderlich et al.: High-precision thermophysical data of liquid metals for modelling of industrial solidification processes: ThermoLab Final Report (2003) [2] Lord Rayleigh : Proc.

Vulnerability assessment and reduction are important measures to improve aircraft’s survivability.
The newest manned and unmanned combat aircraft of America, such as F/A-18E/F, F/A-22, V-22, F-35, “Global Hawk”, “Predator”, etc, have adopt survivability-strengthen/vulnerability-reduction measures in the initial research phase[1-3].
Vulnerability Analysis Model The basic goal of vulnerability modeling is to describe the geometry characteristics, physical characteristics and kill modes, etc., of the whole aircraft and its components by a series of models or data.
(0º, 90º)attack direction (90º, 0º)attack direction (a) Hitting velocity=1000m/s (0º, 90º)attack direction (90º, 0º)attack direction (b) Hitting velocity=1800m/s Fig.4 Aircraft kill probability Iso-contour, with fire/explosion suppression measures The aircraft vulnerability data before and after adopting tank fire/explosion suppression measures are shown in Table 1.
Table 1 Aircraft Vulnerability data before and after adopting tank fire/explosion suppression measures Fuel tankstate Hitting velocity (m/s) Vulnerable area(m2) Kill probability (0º, 90º) (90º, 0º) (0º, 90º) (90º, 0º) No measures 1000 28.16 11.02 0.2126 0.2800 1800 38.26 14.48 0.2888 0.3678 Fire/explosion suppression 1000 17.05 8.61 0.1287 0.2188 1800 19.11 10.30 0.1443 0.2616 Summary The whole aircraft vulnerability model of one aircraft is constructed by CATIA software, and the vulnerability of the aircraft before and after adopting fire/explosion suppression measures are analyzed.

In our view, the reduction of fire resistance occurs for two reasons: firstly, introduction of the ash instead of a similar number of quartzite leads to reduction of SiO2, secondly, with an increase of the number of components in the mixture, processes of solid state reactions intensified and the formation of liquid phase occurs at a lower temperature.
According to the data modificational transformation of quartz occur in the following temperature ranges: - α – quartz < 570 оС; - β – quartz – 575-870 оС; - β – tridymite – 870-1470 оС; - β – cristobalite – 1470-1710 оС.
To confirm the RFA data, sample of binder, which thermally treated at 1300 ° C was investigated by mineralogical and petrographic methods in clear and polished sections and in the immersion fluids.
Viewing samples in immersion preparations (different refractive indices within the quartz fluid and below the last the anisotropy of low birefringence and its absence in the isotropic phase) showed that the optical constants confirm X-ray diffraction data.

Fig.1 XRD patterns of the BiOCl synthesized for 4h (T-1), 6h (T-2), 8h (T-3), 10h (T-4); Vertical bars below the patterns represent the standard diffraction data from JCPDS file for BiOCl (06-0249); SEM images (b, c), TEM image (d), HRTEM image (e) and SAED (inset in(e)) of sample T-3 Results and Discussion Effect of solvothermal time.
It also can be seen from Fig.2b that all the samples show the high photocatalytic degradation of MO solution, which might be attributed to a direction reduction of azo-bond of MO for the strong reduction ability of BiOCl.
Fig.2 Absorption profiles of MO against irradition time (a); degradation rate of MO over various BiOCl samples under UV light illumination(b) Fig.3 XRD patterns of the BiOCl synthesized at 110 ºC (T-3), 130 ºC (K-2), 150ºC(K-3) ; Vertical bars below the patterns represent the standard diffraction data from JCPDS file for BiOCl (06-0249) (a); degradation rate of MO over various BiOCl samples under UV light illumination Effect of solvothermal temperature.
Vertical bars below the patterns represent the standard diffraction data from JCPDS file for BiOCl (06-0249) (a); degradation rate of MO over various BiOCl samples under UV light illumination Conclusion In summary, BiOCl with hierarchical flower-like nanostructure was successfully synthesized.

Introduction Economic concerns and government regulations are forcing the automotive industries to push the limits in the design of their vehicles for weight reduction and cost reduction; while maintaining/improving structural integrity and crash performance.
Nevertheless, low formability of these blanks has been addressed by many researchers [5, 6] Xue et al. [7], regarding the tensile test data for base material and tailor welded blanks, indicated that the strength difference and weld line location play important roles on low formability of TWBs.
The data obtained during simulations was loaded in postprocessor software for measurements.
The remaining 1.1476% is attributable to deviations from the model, which may be due to other factors, to measurement error, or to a failure of the current model to fit the data adequately.

Analysis Method of voting dual redundant data communications.
In addition, dual redundant communication bus to a plurality of communication is detected when the error frame data, without having to request retransmission of data that immediately as a single communication bus, but may use another set of error checking the correct data, and enhance the efficiency of data communications.
Voting system data tables Fault type Error checking results A, B data comparison Voting results A, B normal A, B right Consistency Select A or B data A failure A mistake, B correctly Inconsistent Option B data A disturbance A mistake, B correctly Inconsistent Option B data B Interference A right, B error Inconsistent Select A Data B Interference A right, B error Inconsistent Select A Data A, B interference A mistake, B error Inconsistent Inconsistent Voting procedures mandate data will be analyzed according to the results of the validation data and then determine which system anomalies and select a reasonable decision.
In this case set a maximum wait time Δ T, when two sets of bus data to reach the normal data validation, when they think the wait time exceeds its interference CAN bus occurred.
RS422 communication bus without interference waveform data(left) Fig.7.

In the succeeding roll-drawing procedure, see Fig. 4 a) left, the related reduction in height εh is increased from a minimum reduction per pass of 5 % to a maximum of 50 % per pass.
For each reduction one sample of each prepared initial diameter is Fig. 1: Roller-die, roll diameter dR = 42 mm used.
The related reduction in height εh is increased from sample to sample by an increment of 5 %.
One set of data is recorded in an experiment conducted with work hardened copper wire and another set with copper wire which has been recrystallized at a temperature of 450 °C for a time of 30 min at atmosphere.
The scalar value kRS is dependent on the reduction in the pass.

The workflow of data acquisition.
To avoid the redundant data of the auxiliary plate during the process of scanning, we need to create a datum plane.
Save data.
After all the data acquisitong, we can save the cloud points data as format .txt or .stl for the processing of Geomagic Studio.
For point cloud data preprocessing includes the following aspects: purify point data, point cloud denoising, simplify, unify sampling and wrap.

Scanning Electron Microscopy (SEM) images confirmed the behaviour of the mean crystallites size, where it can be seen that the addition of Si promotes the reduction of the size of powder particles.
Introduction Through the last years, a nanomaterial has enjoyed the interest of huge number of materiel scientists due to its various applications that can be used in modern technologies like: magnetic fluids, magnetic separation, microelectronic devices, data storage and resonance imagery [1].
Indeed, the non-ferromagnetic dissolved Si atoms during the milling process induces a modification of the 3d bands of Fe and Ni, which are responsible for the ferromagnetism, hence the reducing of the μFe and consequently reduction of MS [19].
This was directly conformed by SEM images, where it can be seen that the addition of Si promotes the reduction of the size of powder particles.
Kumar, Synthesis and Characterization of Nanocrystalline Fe(100-x)Ni(x) Alloy Powders by Auto-combustion and Hydrogen Reduction, J.

Firstly, [16] suggested pricing crop insurance contracts using Parana‘s county yield data.
For this reason, they presented in their manuscript three flexible data-driven methodologies to non-parametrically smooth across both space and time simultaneously, integrating the possibly non-identically distributed data into the insurance rating process.
With this in mind, we proceeded to collect the data in order to make our simulations.
Data presentation.
The authors use the probabilities of drought data forecasted for the next agricultural season.