omerelsheikh

omerelsheikh

مدرس - عضو هيئة تدريس

كلية العلوم

العنوان: Sohag

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Ecology is the master of sciences, it is the soul which switch the human civilization advance to the right of sustainability forever it is the only way to keep the humanity right on

Chemical Structure of Natural Products and Characterization of Secretory Tissue of Sweet Basil (Ocimumbasilicum L.)Under Lead Stress

2018-10-22 15:13:04 | الكلمات المفتاحية Phytotoxin, Aromatic plants;, Methyl eugenol, Sweet Basil, essential oils, Lead,
Chemical Structure of Natural Products and Characterization of Secretory Tissue of Sweet Basil (Ocimumbasilicum L.)Under Lead Stress
Abstract: The present study was done to test the effect of Pb treatments on secretory tissue and the chemical structure of the essential oils of basil (Ocimumbasilicum L.). Lead treatments were as follow: 100, 250, 500 and 7500 ppm in addition to control. The experiment was done on Ocimumbasilicum L. in a greenhouse, arranged as a randomized complete block design ... إقراء المزيد

BIOMAGENTIC MONITORING OF AIR POLLUTION USING DUST PARTICLES OF URBAN TREE LEAVES AT UPPER EGYP

2018-10-22 16:04:33 | الكلمات المفتاحية SIRM, IRM, Heavy metals,
BIOMAGENTIC MONITORING OF AIR POLLUTION USING DUST PARTICLES OF URBAN TREE LEAVES AT UPPER EGYP
Six common tree species were used to check their suitability to use as magnetic biomonitors for particulate air pollution. The morphology and chemical composition of their leaf dust were identified using SEM/EDX. The results showed that the shape of particles are sphers, ovoid, irregular or grouped into aggregates; they were well within the size range of urban dust, especially hazardous ... إقراء المزيد

Leaf geometric design of urban trees: potentiality to capture airborne particle pollutants

2018-10-22 15:51:32 | الكلمات المفتاحية Deposition velocity, Particulate matter, Capturing efficiency, Micro-roughness, Capturing ef, Micro-roughness, ,
Leaf geometric design of urban trees: potentiality to capture airborne particle pollutants
The geometric features and particles burdens of the leaf of twenty-seven common tree species were studied. Three different tree categories including coniferous, broad and bisect leaf were recorded. These categories exhibited significant differences in their particle burdens of TDP, PM10 and PM2.5. The value of TDP appears to affect strongly by leaf macro-morphology such as leaf direction, flatness and hardness. ... إقراء المزيد

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