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Spectral Characteristics of the Best Affine Approach of Multi-Output m-Valued Logical Functions
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作者 ZHAO Yaqun YING Dinghai FENG Dengguo 《Wuhan University Journal of Natural Sciences》 CAS 2007年第1期185-188,共4页
This paper discusses the best affine approach (BAA) of multi-output m-valued logical functions. First, it gives the spectra of rate of accordance between multi-output m-valued logical functions and their affine func... This paper discusses the best affine approach (BAA) of multi-output m-valued logical functions. First, it gives the spectra of rate of accordance between multi-output m-valued logical functions and their affine functions, then analyzes the BAA of multi-output m-valued logical functions and finally gives the spectral characteristics of BAA of multi-output m-valued logical functions. 展开更多
关键词 multi-output m-valued logical functions linear spectrum cyclic spectrum BAA(best affine approach)
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Chrestenson Spectrum and Auto-Correlation Function of Inverse Permutations of Quick Trickle Permutations
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作者 WANG Jue LI Zhengchao ZHAO Yaqun 《Wuhan University Journal of Natural Sciences》 CAS 2008年第5期587-590,共4页
In this paper, a sufficient and necessary condition of quick trickle permutations is given from the point of inverse permutations. The bridge is built between quick trickle permutations and m-value logic functions. By... In this paper, a sufficient and necessary condition of quick trickle permutations is given from the point of inverse permutations. The bridge is built between quick trickle permutations and m-value logic functions. By the methods of the Chrestenson spectrum of m-value logic functions and the auto-correlation function of m-value logic functions to investigate the Chrestenson spectral characteristics and the auto-correlation function charac- teristics of inverse permutations of quick trickle permutations, a determinant arithmetic of quick trickle permutations is given. Using the results, it becomes easy to judge that a permutation is a quick trickle permutation or not by using computer. This gives a new pathway to study constructions and enumerations of quick trickle permutations. 展开更多
关键词 quick trickle permutation chrestenson spectrum auto-correlation function m-value logic function
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Effect of Various Additives on the Low Temperature Performance of Petroleum Based Asphalt Binders
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作者 Ratnasamy Muniandy Fauzan Jakarni +1 位作者 Salihudin Hassim Adedokun Oladimeji 《Journal of Traffic and Transportation Engineering》 2020年第3期113-126,共14页
Transverse cracking is a prevalent problem that occurs in asphalt pavement binders in cold climates and diminishes the integrity of the road as well as shortens the life span of the road leading to premature failure.C... Transverse cracking is a prevalent problem that occurs in asphalt pavement binders in cold climates and diminishes the integrity of the road as well as shortens the life span of the road leading to premature failure.Current specification for testing petroleum asphalt binders for transverse and low temperature cracking is not elaborate enough to accurately model the engineering behaviour of the binders.Besides,neat asphalt derived from petroleum crude oil does not seem to perform well at certain low temperatures without some modification to it.Thus,a study was to be undertaken to determine the low temperature behaviour of 60-70 penetration neat binder modified with traditionally used materials such as Crushed Lime Stone Powder(CLP),Hydrated Lime(HL)and Cellulose Oil Palm Fiber(COPF)at temperatures 0°C,-5°C and-10°C.The study was carried using the state of the art Bending Beam Rheometer(BBR)to assess the stiffness value,m-value and deflection level.The tests were performed in accordance with AASHTO T 313-12 specification.The results of the penetration,rotational viscosity and softening point showed that all of the modified binder specimens are within the required range.However,the performance assessments on the modified petroleum binders with additive materials showed a varied nature with CL powder being the best and the COPF the lowest.It was also observed that the crushed lime stone powder had an increase in stiffness,reduction in deflection and m-value. 展开更多
关键词 Asphalt binder ADDITIVES BBR STIFFNESS m-value deflection.
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