Algebraization of logics defined by literal‐paraconsistent or literal‐paracomplete matrices

We study the algebraizability of the logics constructed using literal‐paraconsistent and literal‐paracomplete matrices described by Lewin and Mikenberg in [11], proving that they are all algebraizable in the sense of Blok and Pigozzi in [3] but not finitely algebraizable. A characterization of the finitely algebraizable logics defined by LPP‐matrices is given. We also make an algebraic study of the equivalent algebraic semantics of the logics associated to the matrices ??³_2,2, ??³_2,1, ??³_1,1, ??³_1,3, and ??⁴ appearing in [11] proving that they are not varieties and finding the free algebra over one generator. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

Heuristic procedure for the reduction of finite-state machines

A practical technique for the reduction of large finite-state machines is proposed. The method is based on an empirical evaluation of the machine outputs.     

Repulsive Core Effect in Radiative np Capture

It is shown that the difference between the experimental capture cross section and the impulse approximation strongly depends on the hard core of the NN interaction. Use of hard core wave functions is not sufficient to explain quantitatively the experimental result. The exchange potential itself has to be modified for small nucleon distances.     

The influence of fine structure on the pyrolysis of cellulose. II. Pyrolysis in air

The pyrolysis of purified celluloses in air at 251°C was studied. The pyrolysis was found to obey first-order kinetics, and the rate constants correlated with the crystallinities, orientations and accessibilities of the samples. The results are interpreted in terms of an oxygen-catalyzed decomposition, with the accessibility of oxygen to the cellulose determining the rate of pyrolysis. The production of levoglucosan under conditions approaching combustion was shown to be a function of the crystallinity and orientation of cellulose. Some levoglucosan appears to be produced from the less ordered regions.     

An approach to developing an infant mortality requirement for fiberoptic transport systems

The approach used in developing an infant mortality requirement for fiber optic transport systems used in Bellcore client networks is described. Two generic parameters are considered: failure rate ratio, which is the ratio of the instantaneous failure rate to the steady-state failure rate, and infant mortality factor, which is the ratio of the expected number of failures in the first year of service to the expected number of failures in a steady-state year. Each of these parameters is discussed, and two methods of deriving a value for the infant mortality requirement are discussed. The first, a time-effective method, analyzes the infant mortality models to determine when there has been sufficient decay in the rate of change of the number of failures. The second, a cost-effective method, analyzes the models to determine a point at which overall costs are minimized     

The magnetic moment of composite leptons and quarks

We show that for a composite fermion of sufficiently small radius, the magnetic moment approaches the Dirac value corresponding to the overall charge and mass, regardless of the constituent values. This resolves a recently suggested difficulty in composite models of leptons and quarks.     

Studies in the eburnane series: a new dimerization process

The behaviour of the synthetic (−)-16-(aminomethyl)eburnamenine (prepared from apovincamine) with formaldehyde was studied. Carrying out the reaction in acetic acid led to an original dimer, while in trifluoroacetic acid a 12-functionalized eburnamonine was isolated.     

Influence of fine structure on the pyrolysis of cellulose. III. The influence of orientation

The effects of orientation upon the pyrolysis of cellulose were investigated by using a series of rayon fibers which differed only in orientation. The initial weight loss seen in low-temperature vacuum pyrolysis is due to crosslinking in the less ordered regions and was shown to be a first-order reaction whose rate varies directly with the degree of orientation. The extent of this reaction decreases with increasing orientation and is directly related to the amount of char formed at higher temperatures. The bulk pyrolysis rate increases with increasing orientation. DSC, air pyrolysis rates, and levoglucosan formation were also studied.