Objective: Majorproducers consider quality as a major criterion in decision making.Quality characteristics are affected by maintenance and repair decisions. In this study, a model is developed to determine significant measurements of production equipment affecting the quality of a continuous product to identify which measurements are more critical in terms of quality. Methods: Diversity of par...

Vernonia galamensis Cass is a huge potential industrial crop with very high content of vernolic acid in the seed oil. The experiment was carried out to determine the effect of inter- and intra- row spacing on the yield and yield related traits of Vernonia galamensis Cas.The experiment was conducted for two years during 2014-2015 on experimental field of Wondo Genet Agricultural research center,...

Background & Aim: Fabaceae plant family cow tail (Smirnovia iranica) is one of the valuable species of native shrubs and sand dunes in the central region of Iran which is consistent with the production of forage and soil conservation and creating a beautiful landscape; it has the active ingredients of medicinal values. The purpose of this study was to investigate the presence of some p...

An efficient protocol for enhancement of total alkaloids production from suspension cultures of A. belladonna L. was established. The effect of MS-medium supplemented with different concentrations of naphthalene acetic acid (NAA) and benzyl adenine (BA) on growth parameters as well as total alkaloid production was investigated. In the same connection, the effect of biotic stress caused by vario...

background the production of nanoparticles using a biosystem is considered green chemistry. application of plant extracts as a biological process has been proven to be suitable for synthesis of nanoparticles. objectives this study designed in order to evaluate the production of silver nanoparticles using juglans regia leaf extract and to compare the outcome of different preparation methods of p...

Permeability variation in tight channel sand formation makes an important role in gas production. Based on the features of channel sand formation, a mathematical model has been established considering anisotropy of permeability. The analytical solutions were derived for productivity of both vertical wells and vertically fractured wells. Simulation results show that, gas production rate of aniso...

since the discovery of macc as a major metabolite of both endogenous and exogenously applied acc, it has become evident that the formation of macc from acc can act to regulate ethylene production in certain tissues. hence, it was suggested that macc could serve as an indicator of water-stress history in plant tissues. the accurate quantification of macc in plant tissues is essential for the und...