The induction and improvement of in vitro rhizogenesis of microshoots of Prosopis chilensis (Mol.) Stuntz and Nothofagus alpina (Poep. et Endl. Oerst.) were compared using Agrobacterium rhizogenes (Ar) versus indole-3-butyric acid (IBA) in the culture media. Microshoots of P. chilensis (1-2 cm length), coming from in vitro grown seedlings, were cultivated in a modified Broadleaved Tree Medium (...

Introduction: Recent studies suggest that impacts into highly porous target materials require a new cratering regime controlled by compressional effects (1). Such research is important for interpreting the geologic history of small bodies and for the upcoming Deep Impact mission in 2005. An alternative view (2) suggests that even highly porous targets (density of 0.2g/cc) undergo gravity contro...

ziba kazemi 1, abolghasem hasanpoor 2* department of horticultural science, agriculture and natural faculty, isfahan (khorasgan) branch, islamic azad university, isfahan, iran iranian plant protection research institut iran tehran * corresponding author email: [email protected] received:5 june 2015                                                                          accepted: 21 june 20...

the effect of different ratio of vermicompost (0, 10, 20, 30, 40 & 50 %) in two type of substrate (coco peat and coco peat-perlite (50:50 v:v)) on growth characteristics of gooseberry (physalis peruviana l.) seedling was investigated in research greenhouse of university of tehran, in 2013. a factorial experiment based on completely randomized design with four replications was carried out. crite...

The main objective of this research is to manufacture expanded perlite (EP) foam-filled stainless steel tubes for energy absorption application and investigate their physical compressive behavior. Foam-filled (FFT) were manufactured by consolidating perlite/sodium silicate composite foam inside the tube. EP particles size 5-6 mm taken manufacturing FFTs. Two different sodium solution water (S/W...

The relevance of concrete is growing in the modern world due to population growth and technological advancement. necessity for specialty arises from various usage regions constructions. Foam one most useful varieties special because it offers insulation heat sound. mechanical physical properties foam are influenced by a variety elements. characteristics substantially impacted mineral admixtures...

Preliminary studies on the performance of a laboratory scale perlite biofilter inoculated with a mixed culture taken from petrochemical refinery sludge was evaluated for gas phase styrene removal under various operating conditions. Initially, the biofilter was acclimatized for 53 days at constant loading rates (40-60 g/m.h), wherein the performance gradually improved with fluctuations in the re...