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Volume
15, Number 1, (2019)
CONTENTS
Health
risk assessment of dissolved heavy metals in some selected water samples:
Dakahlia, Egypt
pp. 1-18
A. El Sayed El Wasif, Sh. M. El Dafrawy, S. M.
Nour El Din Moalla and M. M. El Defrawy
Pentadinyl-1,3)-5-(3,4-dihydroxy-butynyl-1)- thiophene and stigmasterol from the
chloroform extract of the root of Blumea aurita var. foliolosa
pp. 19-24
Emmanuel K. Oppong and Ruby Hanson
Allophane of
Gamalama Volcanic Soil Surface Modification Using Sulfuric Acid: Study of the
Effect of Sulfuric Acid Concentration
pp. 25-31
Nur A. Limatahu, Nur Jannah Baturante, St. Hayatun
Nur Abu and Nurul Aulia Rahman
Ensuring Identity of
Dynamic Properties of Medium By Vibroabrasive Machining
Juan Zhang
Model Approach To Interactive System Software
Development
Daoli Huang
Numerical Modeling of Heavy Oil Displacement By Hot
Water
Hung-Yu Chien
Morphological
Characteristic of Hydraulic Fracturing According To The Results of Microseismic
Research
Pieter Robyns
The Rate of Soil Formation In Regenerative Ecosystems
With Various Combinations of Substratum and Vegetation Conditions
Bram Bonné
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