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Hard disk substrates play a key role in the data storage process of magnetic storage hard disk drives (HDDs).
The disk arial recording density of hard disk drives will keep grow at 50% growth rate per year as the video-audio digital application system and data storage capacity requirements keep moving higher progressively [1].
Hard disk substrates play a key role in the data storage and data accessing process in hard disk drives (HDDs) [3].
The contributing factors to finish good disk defect performance are a function of polish removal capability and scratch reduction.
This is readily observed in the experimental data regarding surface finish and defect performance.

Microstructural hydrogen trapping behaviour in low- and intermediate temperature regions observed here was in coincidence with previous data obtained for RS materials using thermal desorption spectroscopy (TDS).
The information on H interactions with defects is often limited to high purity aluminum while most mechanical property data have been obtained for Al engineering alloys with transition alloying elements.
Obtained TDA results of the microstructural hydrogen trapping behaviour reveal new original data on H desorption kinetics at elevated temperatures in RS high purity Al and Al-Cr alloys.
Concerning unindexed small peak below peak 1a, its origin is not well understood due to a lack of experimental data for Al-Cr alloys and will not be discussed further in the present paper.
Note, instead of TDS data acquired by a quadrupole mass spectrometer in ultrahigh vacuum condition, TDA measurements are carried out in the atmosphere that contains oxygen.

Normality test of data distribution were evaluated using Minitab software and it was proven that all samples were in a very stable behaviour (p > 0.05).
The high speed impact data processing software generated the impact energy value in Joule [J] at maximum load applied.
From the collected data, the modulus of rupture (MOR) value or flexural strength of the specimen was determined in Pascal [Pa] unit.
Normality test for each properties data distributions were also being tested and all data were proven to be very stable (p>0.05).
They also pointed out that delamination was the most common failure mode and it may cause severe reduction in in-plane strength and stiffness, potentially leading to catastrophic failure of the whole structure.

The optimized data is consistent with some typical phenomena in hydroboration and ring-opening metathesis polymerization.
Semi-empirical method simplified the former with empirical parameters gained from experimental data to reduce the calculation time.
However, there exist deviations in the data of number 7 and 8 by AM1.
SS represents the sum of the squared deviations from the average, and the SS between groups reflects the differences in the data of each group.
Table 2 Results of One-way analysis of variance of aggregate data. 30k 20k 10k 300k 600k 1000k SS 1.286729 0.297992 0.267912 0.267912 0.282752 0.472586 Table 3 Results of One-way analysis of variance of literature value with bond length and angle separately.

The robot can be controlled with a data acquisition board 7344 National Instruments and LabVIEW programming or with microcontrollers.
A most significant reduction of maximum normal load was noticed when detergent for window cleaning was used, because it remained in the contact area even after the cup was fixed on the supporting surface.
[5] Festo, Suction cups, complete ESS and suction cups ESV [Online], available: http://xdki.festo.com/xdki/data/doc_ENGB/PDF/EN/ESS-ESV_EN.PDF

The basic information about water jet system operation in quarry conditions has been acquired and some relations between data from a quarry and the laboratory ones have been determined.
Those works were related to the attempts aimed at use of water jets on mining machines for cooling of solid state bits or disks, dust reduction and for making kerfs in very hard rocks turning them softer for power and cutter loaders.

The accelerated use of solar PV allows a reduction of carbon dioxide of approximately 4.9 gigatonnes.
Data for the heat transfer coefficient were based on [23].
Data for the heat transfer coefficient were based on [23].
Data for velocity inlet was considered based on [24,25].
After the data obtained in the simulations carried out in the two models considered, simulations in the macro model would be performed, to see how, not only one, but six panels now would contribute to the thermal comfort of the house.

The proposed strategy is used to a particular Ant-Lion Optimization Algorithm (ALOA) as a novel approach to producing highly efficient optimal output power, as well as case studies using actual wind data assessing potential turbine site.
d) Windfarm selection and turbine data.
The results of the data comparison are comparable to previous findings in Case 2, when the wind blows at a consistent speed from all directions with equal probability.
Despite the lack of consensus, we find that our observations compare favorably to previously published data and differ considerably from it.
A new cost objective can also be added to the optimization process if real cost data is available; however, the designer must always make a trade-off between the objectives included in the optimization

Data for soot brands P803 and N220 are shown in tables 4, 5 and figures 1–6.
Research data are presented in table 6 and figures 7–10.
The introduction of glycerol monostearate led to a slight reduction in agglomerates but added a new useful property for film producers – the surface became shiny and increased the sliding coefficient of the film.
The introduction of Ca stearate led to a significant improvement in the quality of staining and a significant reduction in the number of agglomerates.
The content of sodium lauryl also led to a significant reduction in agglomerates.

Suresh et al. [16] noted a reduction in latent heat of solidification in palmitic acid with cupric oxide nanoparticles at mass proportions of 0.3% to 0.8%.
The FTIR data, as illustrated in Fig. 3, offered valuable insights into the chemical composition and stability of both the PCM and the synthesized SeDA PCM.
Table 2 DSC data of pure PCM and SeDA PCM PCM-SeDA wt. % On-set temperature (°C) Peak temperature (°C) Latent heat (kJ kg-1) Freezing Melting Freezing Melting Freezing Melting 0 (Pure PCM) 41.14 42.93 41.51 44.73 216.19 217.06 0.05 42.05 43.31 41.74 44.99 192.24 195.38 0.1 40.70 43.32 41.44 45.38 183.98 195.04 0.15 42.20 43.34 41.33 45.58 189.07 193.08 Remarkably, no evidence of secondary peaks associated with solid-solid phase transitions was detected.
The extent of reduction in latent heat depends upon the concentration of nanoparticles incorporated into the n-dodecanoic acid.
Conclusion The current chemical reduction technique employed for synthesizing silver nanoparticles is characterized by its simplicity, convenience, and feasibility, enabling the production of nanocrystalline silver nanoparticles with a near-spherical shape.