the synthesis of heat integrated multi-component distillation systems is complex due to its huge search space for structural combination and optimization computation. to provide a systematic approach and tools for the synthesis design of distillation systems, a new method for modeling heat integrated columns is presented, and the operating cost objective function is minimized by improved harmon...

background: fasciola species are parasitic trematode with world wide distribution that infects wild and domesticated herbivores, particularly ruminants. the aim of the present study was to investigate the intra species variations of f. gigantica, from goats and buffalos isolates in two common geographic climates of iran. methods: fasciola species were collected from goat, buffalo, sheep, and ca...

objective(s) in addition to several molecular methods and in particular 16s rdna analysis, the application of a more discriminatory genetic marker, i.e., 16s-23s internal transcribed spacer gene sequence has had a great impact on identification and classification of mycobacteria. in the current study we aimed to apply this sequencing power to conclusive identification of some iranian clinical s...

background: thioredoxin reductase 1 (txnrd1) and thioredoxin interacting protein (txnip) also known as thioredoxin binding protein 2 or vitamin d3-upregulated protein 1 are key players in oxidative stress control. thioredoxin (trx) is one of the major components of the thiol reducing system and plays multiple roles in cellular processes. computational analyses of txnrd1, txnip and trx expressio...

background: gossypium thurberi is a wild diploid species that has been used to improve cultivated allotetraploid cotton. g. thurberi belongs to d genome, which is an important wild bio-source for the cotton breeding and genetic research. to a certain degree, chloroplast dna sequence information are a versatile tool for species identification and phylogenetic implications in plants. different ch...

in this paper, we establish some new results in ultra bessel sequences and ultra bessel sequences of subspaces. also, we investigate ultra bessel sequences in direct sums of hilbert spaces.specially, we show that {( fi, gi)}∞ i=1 is a an ultra bessel sequencefor hilbert space h ⊕ k if and only if { fi}∞ i=1 and {gi}∞ i=1 are ultrabessel sequences for hilbert spaces h and k, respectively.

the present study was aimed to isolate and characterize the lipolytic enzyme producing bacteria from soil samples of regions around zayande-rood river of isfahan, iran. soil samples were collected from 15 cm depth of soil surface. based on morphology, distinct colonies were isolated and purified through streak culture on to standard agar plates. isolated colonies were examined for lipase activi...

let $(u_n)$ be a sequence of fuzzy numbers.  we recover the slow oscillation of $(u_n)$ of fuzzy numbers from the ces`{a}ro summability of its generator sequence and some additional conditions imposed on $(u_n)$. further, fuzzy analogues of some well known classical tauberian theorems for ces`{a}ro summability method are established as particular cases.

in this paper, we consider an arbitrary binary polynomial sequence {a_n} and then give a lower triangular matrix representation of this sequence. as main result, we obtain a factorization of the innite generalized pascal matrix in terms of this new matrix, using a riordan group approach. further some interesting results and applications are derived.

conclusions sequence and structural diversity of the 3'utr variable region and poly u/uc region found in the local isolates indicate specificity in the regulating elements of 3'utr that might be associated with differential replication efficacy of the hcv pakistani isolates. the study necessitates functional characterization of these regulating elements to elucidate variable viral eff...