Dodecylbenzenesulfonic acid (DBSA) was used as an efficient, cheap and stable Brønsted catalyst for acetylation of alcohols and phenols and formylation of alcohols under solvent-free conditions. Various primary, secondary ...

Titanium dioxide nanocrystals were synthesized by sol-gel method at room temperature. Titanium isoprophoxide and absolute ethanol were used as precursors to prepare the sol. The pH of the solution was adjusted by adding ...

India is one of the largest producers of onion in the world producing over 13,920,000 metric tons. Storage is a major problem which leads to spoilage, and microbes play an important role in the spoilage. In this present ...

The mobility and bioavailability of trace elements in the agricultural soils are extremely important in assessing the risk of toxicity to the growing plants. A five step sequential extraction procedure (SEP) has been ...

Let S be a monoid and X a class of S-acts which is closed under coproducts. The object of this article is to find conditions under which all S-acts have X-precovering. We have shown that the existence of torsion-free ...

Supergene oxidation-leaching and secondary sulfide enrichment in the SarCheshmeh porphyry Cu-Mo deposit generated a supergene profile to depths of 20 to 80 meters with oxide ore reserve about 22 Mt. @1.08% Cu and sulfides ...

Antibacterial, antifungal and antioxidant activities of methanolic crude extracts from aerial parts of four Arnebia species namely Arnebia fimbriopetala, Arnebia linearifolia, Arnebia garandiflora, Arnebia tubata were ...

Superconducting materials are capable of trapping extremely high magnetic fields. This property and Meissner effect of superconductors causes a levitation force between bulk superconductors and a permanent magnet (PM). ...

The main purpose of this article is to increase the efficiency of the least squares method in numerical solution of ill-posed functional and physical equations. Determining the least squares of a given function in an ...

In this paper, we introduce the notion of multiplier in -algebra and study relationships between multipliers and some special mappings, likeness closure operators, homomorphisms and ( -derivations in -algebras. We introduce ...

Let  be a Banach algebra and  a derivation. In this paper, it is proved, under certain conditions, that , where  is the Jacobson radical of . Moreover, we prove that if  is unital and  is a continuous derivation, then , ...

In this paper we introduce entire sequence spaces defined by a sequence of modulus functions . We study some topological properties of these spaces and prove some inclusion relations.