A principal limitation in accuracy for scientific computation performed with floatingpoint arithmetic may be traced to the computation of repeated sums, such as those which arise in inner products. As previously reported, a systolic super summer is a cellular piece of hardware for the summation of floating-point numbers. The apparatus receives floating-point summands, converting them into a fix...

The amino acid composition of endosperm cavity sap and of sieve tube saps from the flag leaf, peduncle, rachis, grain pedicel, and grain were determined for wheat plants just past the mid-half of grain filling. On a mole percent basis, glutamine accounted for almost half of the amino acids in sieve tube sap from the peduncle and ear. Other protein amino acids, plug gamma-aminobutyrate, were pre...

4 Colour connected filters 11 4.1 Colour area morphology scale-spaces . . . . . . . . . . . . . . . . . . . . . . . . 12 4.1.1 Colour Extrema . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1.2 Distance metrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.2 Convex Colour Sieve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.3 Vecto...

The advantages of new types H2TiO3 lithium-ion sieves, including excellent adsorption performance, high-efficiency Li+-ion selectivity, reliable regeneration, environmental friendliness, and easy preparation, have attracted considerable attention. Currently, the prices lithium carbonate other related products are rapidly increasing, so use sieves to extract resources in salt lake brine has beco...

E. Bombieri [12] has written at length concerning applications of the large sieve to number theory. Our intent here is to complement his exposition by devoting our attention to the analytic principle of the large sieve; we describe only briefly how applications to number theory are made. The large sieve was studied intensively during the decade 1965-1975, with the result that the subject has lo...

A method was designed for in vivo observation of sieve element/companion complexes by using confocal laser scanning microscopy. A leaf attached to an intact fava bean plant was mounted upside down on the stage of a confocal microscope. Two shallow paradermal cortical cuts were made in the major vein. The basal cortical window allowed us to observe the phloem intact. The apical window at 3 cm fr...

Carbon molecular sieve membranes (CMSMs) are an important alternative for gas separation because of their ease of manufacture, high selectivity due to molecular sieve separation, and high permeance. The integration of separation by membranes and reaction in only one unit lead to a high degree of process integration/intensification, with associated benefits of increased energy, production effici...

The best practical algorithm for class group computations in imaginary quadratic number fields (such as group structure, class number, discrete logarithm computations) is a variant of the quadratic sieve factoring algorithm. Paradoxical as it sounds, the principles of the number field sieve, in a strict sense, could not be applied to number field computations, yet. In this article we give an in...

The number field sieve is a relatively new method to factor large integers. Its most notable success is the factorization of the ninth Fermat number. It is significantly faster than all known existing integer factoring algorithms. We examine the theoretical underpinnings of the sieve; after understanding how it works, we state the algorithm. We look mostly to the algebraic number theory aspects...