chemical and morphological characterization of different parts of banana plant(musa paradisica) (peduncle, leaf stalk and pseudo stem) were carried out in orderto assess their potentiality for chemical pulp. each portion was tested forextractives, sodium hydroxide solubility, ash, lignin, cellulose and pentosancontents as well as their fiber length and width. these segmented parts werecharacter...

for better understanding of tehran ground water, samples were taken randomly from 340 out of 655 deep & semi deep wells in 1993, which dug by tehran water supply and sewage engineering company. 260 water specimens were examined chemically and physically and compared with the 1993 world health organization (who) and food and agriculture organization (fao) criteria and analyzed statistically. log...

The density and aflatoxin content of individual cateye fluorescent cottonseeds have been investigated. In general, higher average levels of aflatoxin contamination were found among the lower density seeds. However, significant amounts of aflatoxins were detected in a few of the higher density seeds. Subjective evaluation of color and texture of dissected kernels indicated a predominance of poor...

growth and productivity of plants are mainly affected by various environmentalfactors in different ecosystems and natural habitat in the world. this research aims to studythe existing relationships between the phytosociology characteristics of thymuskotschyanus and environmental factors in order to find the most important factorsgoverning development of the species in middle taleghan rangelands...

Heavy metals are naturally present in the soils trace quantity. Besides, some include these elements at high levels resulting from weathering of minerals or human activities. Contamination has been great concern environment interrelatedly with their toxicity, persistence and non-degradability. So, this article aimed to evaluate heavy metal pollution by using several indices contamination facto...

selecting within local pomegranate accessions is the main method used to identify new cultivars. total of 76 pomegranate accessions from hatay, turkey, were collected and their morpho-pomological and chemical characteristics were determined. the results showed that there was significant diversity among the accessions in terms of fruit quality parameters. several accessions were notable for thei...

Accurate detection of weeds in farmland can help reduce pesticide use and protect the agricultural environment. To develop intelligent equipment for weed detection, this study used an imaging spectrometer system, which supports micro-scale plant feature analysis by acquiring high-resolution hyper spectral images of corn and a number of weed species in the laboratory. For the analysis, the objec...

Introduction Several attempts have been made to develop ceramic systems without metal frameworks. To date, there is an increasing range of dental ceramics allowing clinicians to combine very good esthetics with optimal mechanical properties, such as glass-infiltrated porcelain, aluminaand zirconia-reinforced ceramics . Several authors have described different surface treatments to improve the a...

PECVD growth of Six:Ge1-x films for high speed devices and MEMS SiGe thin films were deposited by plasma enhanced chemical vapor deposition (PECVD; MV Systems, Colorado) for use in high speed devices, Micro-Electrical Mechanical Systems (MEMS) and measurement of electromagnetic radiation (bolomtery). SiGe films grown by PECVD typically have lower stress, lower deposition temperatures and high g...