Received (received date) Revised (revised date) Communicated by Editor's name ABSTRACT The network properties of double and triple xed step graphs are considered. We determine that the broadcast times of double and triple xed step graphs of diameter D are equal to D + 2 and D + 3, respectively. Some results on the embeddings of grids into these graphs with dilation 1 and 2 are given. For a trip...

and Applied Analysis 3 where A n = α n I + A for all n ≥ 0. In particular, if V ≡ 0, then (11) reduces to the following iterative scheme: x 0 = x ∈ C chosen arbitrarily, y n = P C (x n − ] n A n x n ) , z n = β n x n + γ n P C (x n − ] n A n y n ) + σ n TP C (x n − ] n A n y n ) , x n+1 = P C [λ n (1 − δ n ) γSx n + (I − λ n μF) z n ] , ∀n ≥ 0. (12) Further, if S = V, then (11) reduces to the f...

New opportunities for the refinement of ionospheric modelling and reduction of the ionospheric error in GPS measurements arise since a third-frequency will be introduced for the modernised GPS system. This paper investigates theoretical models of the ionospheric refractive error. A triple-frequency method of correcting the 1 and 2 order ionospheric refraction is presented and a triple-frequency...

We have developed a quantitative autoradiographic technique to measure simultaneously local cerebral blood flow, tissue pH, and local cerebral glucose utilization using 4-[18F]fluoroantipyrine, [14C]dimethyloxazolidine-2,5-dione, and 2-[3H]deoxyglucose as radioactive tracers. Our technique was validated by measurements of local cerebral blood flow, tissue pH, and local cerebral glucose utilizat...

Let V with IV1 = v be a finite set and B a set of 3-subsets of V. The elements of V are called points, those of B lines. If any 2-subset of V is contained in exactly one line, then the pair (V, B) is called a Steiner triple system of order V, in short STS(u). Each point lies on exactly r = i(v 1) lines and we have JB1 = b = &(v 1). The condition v = 7, 9 + 6n, IZ E No, is necessary and sufficie...

In this paper, a network-centric subcarrier allocation method is proposed for triple-sectored Orthogonal Frequency Division Multiple Access (OFDMA) systems. The proposed method is based on a networkcentric algorithm that is located in a base station (BS) and coordinates the subchannel allocation of each sector. This method controls the resources (subchannels) allocated to each sector, not to wa...

This method for rapid, automated analysis of polymerase chain reaction (PCR) products makes use of PCR primers containing 5'-polypyrimidine sequences. Polypyrimidine-"headed" primers confer to the PCR product the ability to form triple helical complexes with a third polypyrimidine oligonucleotide. Third-strand oligonucleotides are modified to serve as either capture reagents or detection reagen...

background: the prevalence of hip dysplasia is 1 in 1000. several pelvic osteotomy methods have been developed to prevent early osteoarthritis, such as triple osteotomy. in this study we are going to introduce our new technique that was done on 4 patients with favorable short-term results.   methods: four patients underwent triple osteotomy and fixation using a reconstruction plate and early we...

purpose: to assess the results of combined penetrating keratoplasty and cataract extraction by extracapsular extraction versus phacoemulsification and to compare outcomes and complications. methods: in this interventional retrospective study, 76 eyes that had undergone triple surgery were included. cataract surgery was done in two different methods of extracapsular extraction and phacoemulsific...

Recently, Evolutionary Trace Transform (ETT) has been developed to extract efficient features (called triple features) for invariant image identification using multi-objective evolutionary algorithms. This paper compares two methods of Evolutionary Trace Transform (method I and II) evolved through similar objectives by minimizing the withinclass variance (Sw) and maximizing the between-class va...