نتایج جستجو برای: Plant structure
تعداد نتایج: 1918683 فیلتر نتایج به سال:
harvester ants are known as one of the most renowned bio-disturbances in the arid and semi-arid ecosystems that affecte vegetation by collecting seeds and harvesting plants. it seems that physiognomy of plant association in steppe shrub land of roodshoor, saveh, iran has been highly changed by harvester ants’ activities that caused to conduct this research. the study was carried out on active a...
in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...
in this paper the seismic evaluation of reinforced concrete structures in petrochemical facilities under sever conditions such as high pressure, high temperature and corrosive environment is studied. these structures were designed and constructed during 1976-78. the evaluation procedure is basically performed in two phases namely; a) qualitative and b) quantitative methods. in the qualitative e...
in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...
INTRODUCTION ..................................................................................... 235 NUCLEOSOMES IN HIGHER PLANTS ........................................................ 237 Microscopic Investigations ...................................................................... 237 Biochemical nd Biophysical Investigations ................................................. 237 CHROMA...
This is the fourth edition of Dr. Woodburne's popular text of regional anatomy. The book is arranged in nine sections: (1) general concepts in anatomy; (2) the upper limb; (3) the head and neck; (4) the back; (5) the chest; (6) the abdomen; (7) the perineum; (8) the pelvis; and (9) the lower limb. As in past editions an emphasis is placed on basic organizational principles and little attention ...
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