Filters








6,007 Hits in 4.4 sec

Pseudo-random phase plates

Steven M. Ebstein, John D. Gonglewski, Mikhail A. Vorontsov, Mark T. Gruneisen
2002 High-Resolution Wavefront Control: Methods, Devices, and Applications III  
A technique for fabricating high-resolution, well-characterized pseudo-random phase plates that addresses this need is described.  ...  Well-characterized test conditions are essential for validating the engineering design of an adaptive optical system.  ...  The grid for the raster scan of the surface is typically identical to the grid for the pseudo-random phase function and is chosen along with the size of the ball end mill to accurately reproduce the phase  ... 
doi:10.1117/12.454707 fatcat:y524e762hfdstgrfyy72szg23m

Living crystals

Philip Ball
2013 Nature Materials  
This controlled aggregation, coupled with the possibility of magnetic steering of the haematite, could offer new directions for materials assembly and dynamic activity. ❐ LIVING CRYSTALS PHILIP BALL  ...  Crystallizationa variant of that category -has traditionally displayed a triumph of the ordering tendency over the disruptive influences of diffusive randomness and thermal motion, giving rise to periodic  ... 
doi:10.1038/nmat3582 pmid:23422716 fatcat:calohr5nzfehrlnucyig54kbfi

Comparison of uncertainty in fatigue tests obtained by the Monte Carlo method in two softwares

Lisiane Trevisan, Daniel Antonio Kapper Fabricio, Afonso Reguly
2016 Journal of Physics, Conference Series  
Different software may be used to generate pseudo-random numbers and used for the application of Monte Carlo simulation [4] .  ...  The implementation way of each numerical routine, allows Crystal Ball ® running faster than Matlab ® .  ... 
doi:10.1088/1742-6596/733/1/012029 fatcat:3twhgogvcnbufbdvpwvdroqnk4

A classification of kaolinites by infrared spectroscopy

T. W. Parker
1969 Clay minerals  
Both ratios are affected by the shape of the kaolinite particles and methods for minimizing this are given.  ...  In this the ratio of the two strongest bands in the OH-stretch region of the spectrum (band maxima at 3695–3700 cm−1 and 3620–3625 cm−1) of an oriented preparation at 45° incidence is plotted against the  ...  Noble for the aspect ratio and crystallinity index measurements.  ... 
doi:10.1180/claymin.1969.008.2.02 fatcat:khsu5zrxt5a2xeiovz7ipsf6wi

Page 683 of Behavior Research Methods Vol. 30, Issue 4 [page]

1998 Behavior Research Methods  
Other products, such as @RISK and Crystal Ball, can be used to generate random samples.  ...  SIMULATING VARIABILITY 683 whether the values generated by the pseudo-random gen¬ erator are auto-correlated.  ... 

Diffraction Symmetry in Crystalline, Close-Packed C60

R. M. Fleming, T. Siegrist, P. M. Marsh, B. Hessen, A. R. Kortan, D. W. Murphy, R. C. Haddon, R. Tycko, G. Dabbagh, A. M. Mujsce, M. L. Kaplan, S. M. Zahurak
1990 Materials Research Society Symposium Proceedings  
Sublimed C60 forms three dimensional, faceted crystals with a closepacked, face-centered cubic unit cell. We have refined a crystal structure using the "soccer ball" model of the C60 molecule.  ...  ABSTRACT We have grown crystals of the carbon structure C60 by sublimation. In contrast to solution-grown crystals, the sublimed crystals have long range order with no evidence of solvent inclusions.  ...  Raghavachari and S. Sunshine for useful discussions and to S. LaPlaca for reminding us of the structure of β-B.  ... 
doi:10.1557/proc-206-691 fatcat:kp7kfzo43bb2thld7hluclxepa

Page 7186 of Mathematical Reviews Vol. , Issue 92m [page]

1992 Mathematical Reviews  
From the summary: “The degree of pseudo-randomness of several sequences and its relation to Anderson localization are investi- gated. Pseudo-randomness is rated with the help of the x?  ...  The re- sults are relevant for localization in systems which are studied in ‘quantum chaos’, where the potentials are pseudo-random but not truly random.”  ... 

Bernal's road to random packing and the structure of liquids

John L. Finney
2013 Philosophical Magazine  
In order to test the relevance of the model to real liquids, ways had to be found to realize and characterize random packings.  ...  This enabled the use of packing concepts, and the tools developed to characterize them, in understanding systems as diverse as metallic glasses, crystal-liquid interfaces, protein structures, enzyme-substrate  ...  Acknowledgements Bernal's laboratory work was made possible by the imagination and expertise of the members of the liquids team that Bernal assembled over a period of perhaps three decades.  ... 
doi:10.1080/14786435.2013.770179 fatcat:25wb6cvb7jgcxc2pp4zodfbyxq

Page 81 of International Review of History and Political Science Vol. 7, Issue 2 [page]

1970 International Review of History and Political Science  
The Commerce of Sorcery in Later Medieval Europe 81 nails, sword-blades, crystal balls, beryl stones, bowls of. water, and strange arrangements of bread and knives, or by the random selection of texts  ...  This popular and eminently pragmatic art was usually distin- - guished from such pseudo-scientific disciplines as astrology, alchemy, and medicine, although they could be combined.  ... 

Simulating the variability of actual outcomes

Sonia M. Goltz, James E. Northey
1998 Behavoir research methods, instruments & computers  
We propose a method to do so and describe an application of the method.  ...  Outcome values falling within a specified range are randomly generated and presented across subjects and trials, so that, over time, the averagevalues seen by all subjects in a condition are the same.  ...  Other products, such as @RISK and Crystal Ball, can be used to generate random samples.  ... 
doi:10.3758/bf03209487 fatcat:rysanfnutncydo32ifxmf2qpui

Nanocrystalline CuFe solid solutions prepared by mechanical alloying

J.Y. Huang, A.Q. He, Y.K. Wu
1994 Nanostructured Materials  
The detailed process of nanocrystal formation was characterized by high resolution electron microscopy and manyfine structural changes were revealed.  ...  The average grain size of the powders (10-20 nm) depends on the composition of the material.  ...  ACKNOWLEDGEMENT This work was supported by the National Science Foundation of China.  ... 
doi:10.1016/0965-9773(94)90122-8 fatcat:zzop62lgy5bfvpnb6mjyswse2y

Novel Pilot-Scale Technology for Refinery Flare Flue Gas Carbon Capture and Storage Using Cost-Effective Adsorbents

Abdulkadir Sarauta, Ibrahim Ali Mohammed Dabo
2021 Symmetry  
The established optimum conditions of CO2, NOx, HC, and CO removal efficiency are 22 °C, 2 atm, and 60 min. The variation in flare gas emission could impact the removal efficiency of the plant.  ...  The flare flue gas adsorption unit was designed, fabricated, test run, and commissioned. The adsorption column temperature is 28 ± 10 °C and has a pressure of 131.7 kPa.  ...  I hereby declare that the entire work was developed in an effort to meet the requirement for PhD and there no any conflict of interest.  ... 
doi:10.3390/sym13050807 fatcat:qhyoftnzbzfpvepu5pp6uddduq

A Stochastic Film Grain Model for Resolution-Independent Rendering

A. Newson, J. Delon, B. Galerne
2017 Computer graphics forum (Print)  
and resolution of the initial scan.  ...  The realistic synthesis and rendering of film grain is a crucial goal for many amateur and professional photographers and film-makers whose artistic works require the authentic feel of analog photography  ...  Many thanks also to Noura Faraj for her significant input and advice concerning the presentation of the algorithm and for the Figure 6 , and to Henri Maître for his expertise on analog film.  ... 
doi:10.1111/cgf.13159 fatcat:unt3lk57hbhh7n22pgayzp7diq

Influence of Ni on the refinement and twinning of primary Cu6Sn5 in Sn-0.7Cu-0.05Ni

J.W. Xian, M.A.A. Mohd Salleh, S.A. Belyakov, T.C. Su, G. Zeng, K. Nogita, H. Yasuda, C.M. Gourlay
2018 Intermetallics (Barking)  
The influence of Ni on the size and twinning of primary Cu6Sn5 crystals in Sn-0.7Cu-0.05Ni and Sn-xCu (x=0.7, 0.9, 1.1) (mass%) solder joints is studied using synchrotron radiography and SEM-based EBSD  ...  The frequency of twinned crystals was significantly higher in Ni-containing solders.  ...  Acknowledgements The authors gratefully acknowledge funding from Nihon Superior Co., Ltd; the UK EPSRC (grant numbers EP/M002241/1 and EP/N007638/1: the Future LiME Hub); a  ... 
doi:10.1016/j.intermet.2018.08.002 fatcat:un6fi6a6jzcslkg32nlu6fsffy

Prospects of measuring Higgs boson decays into muon pairs at the ILC [article]

Shin-ichi Kawada, Jenny List, Mikael Berggren
2019 arXiv   pre-print
The study is performed at center-of-mass energies of 250 GeV and 500 GeV, with fully-simulated Monte-Carlo samples based on the International Large Detector (ILD).  ...  We also quantify the impact of the transverse momentum resolution on this analysis, and found that it is very important reach the design goal of an asymptotic resolution of σ_1/P_t = 2 × 10^-5 GeV^-1.  ...  Acknowledgements We would like to thank the LCC generator working group and the ILD software working group for providing the simulation and reconstruction tools and producing the Monte Carlo samples used  ... 
arXiv:1902.05021v1 fatcat:5fixpdsgibdwpgbkh5qkrskfkq
« Previous Showing results 1 — 15 out of 6,007 results