Given a sentential logic S there exists a least sentential logic ad S associated with the set S Thm of the theorems of . S If the logic S is equivalential, then the behavioral theorems of S Thm can be determined by an equivalence system for , S but, possibly, they may also be determined by any admissible equivalence system, i.e., an equivalence system for . ad S Babenyshev and Martins studied t...

(1.2) the ranges of f and g are identical on almost all OK/p. The most trivial cases are where g(x) = f(ax + b) for some a, b ∈ Q̄, the algebraic numbers. When K = Q, mostly that relation forces a, b∈K. For example this holds when f is indecomposable (not a composite of lower degree polynomials). With the indecomposability assumption, solutions to Davenport’s and Schinzel’s problems were essenti...

Hgl -,Cd,Te and Cdl -,Zn,Te single crystals were grown by the travelling heater method (THM), applying two different techniques of artificially stirring the solution zone. Accelerated crucible rotation (ACRT) was used in a vertical growth arrangement and compared a technique with constant rotation around the horizontal axis of the ampoule. The dominant hydrodynamic mechanisms of both methods ar...

This paper lays out the basic theory of the down operator D of the infinite polynomial ring R = k[x0, x1, x2, ...], defined by Dxi = xi−1 (i ≥ 1) and Dx0 = 0. Here, k is any field of characteristic zero. The only linear invariant is x0, and the quadratic invariants are well known and easily described. One of the paper’s main results, Thm. 6.2, gives a complete description of the cubic invariant...

Evapotranspiration is an important parameter to evaluate soil water deficit and use efficiency, especially in locations with irregularly distributed precipitation. The aim of this study was assess the daily actual evapotranspiration (ETa) estimated by Thornthwaite Mather balance adapted for crops (ThM) dual Kc method crop coefficients optimized from inverse modeling adjustment suggested FAO-56 ...

Perovskite solar cells (PSCs) attract widespread research interest due to their exceptional properties. However, the instability of perovskite layer, especially moisture instability, and existing defects seriously restrict performance limit development PSCs towards commercialization. Herein, we fabricate moisture-stable efficient by incorporating a thiamine (THM) additive into lead iodide (PbI2...

The formation of bacterial regrowth and disinfection by-products is ubiquitous in chlorinated water distribution systems (WDSs) operated with organic loads. A generic, easy-to-use mechanistic model describing the fundamental processes governing interrelationship between chlorine, total carbon (TOC), bacteria to analyze spatiotemporal quality variations WDSs was developed using EPANET-MSX. repre...