Physical properties of soil in terms of calculating the gravitational water percentage, calculating moisture in the soil, and calculating porosity by calculating the apparent and true density.
Seventh sector is located on the right bank of the Euphrates River at the town of Abu-
Kamal, the Syrian-Iraq border, and its square 18140 hectares. Invest most heavily sector
too, where crops depend on irrigation, irrigation networks mediated cons
isting of earthen
trenches, canals and to pump water by pumps on the banks of the Euphrates.
Research aims to assess the pedelogical properties of agricultural soils by using laboratory
and field tests: leaching speed, permeability, density, porosity, water field capacity, natural
humidity (hygroscopic– wilt limit), so as to contribute in choosing optimal modalities for
irrigation and drainage, and rehabilitation Land affected by salinity and exited the
investment.
The soils of the sector are clay, clayey sand, fine sand, and it has low permeability, low
water field capacity because of sedimentary origin, and the total porosity is low in the
upper part of subsurface soil because of its impaction. There is a relationship between
hygroscopic moisture of soils and its structural composition. The search recommend to
agriculture Fabaceae crops with different roots deep to help improve soil building, and
need to use spray irrigation method to control the water quantity and wetting depth.
The experiment carried out to improve the efficiency of drip
irrigation system , based on soil moisture. The indirect measure of
humidity Was used in the experiment, connected with the pointing
device (separator continued), and a control device pr
ogrammed on a
low humidity degree, which is degree the field capacity of the soil and
which value is 25%, and on a high moisture degree which is saturation degree
at 75%..
The research aims to study the effect of the distribution water on
Proton Exchange membrane fuel cell (PEMFC), and the
relationship of membrane thickness and the effects of changes in
thickness depending on the amount of water contained within the
membrane. The research also aims to change the effect of humidity
on the effectiveness of the membrane proton through the diffusion
coefficient and the coefficient of the flow electral osmotic. The
research includes the study of humidity on the cell performance at
constant temperature and its effect on the input interface.
The aim of this study is to compare the dissolution time of six formulations of paranteralSodium Ceftriaxonepreparation, the original product and five generic local ones. The dissolution time was measured precisely as the point at which the dried pow
der of Sodium Ceftriaxone preparation became a transparent solution on the addition of physiologicalsolution 0,9% of Sodium Chloride. The dissolution time of the six products were different. The measurement of infrared spectroscopy (FTIR) of different powder preparations was conducted, then the weight, the humidity and the morphology of different medical powders were studied to investigate the factors influencing the dissolution time. The difference in dissolution time between the six products was due to differences in powder characteristics such as water content, crystal shape and dimension. It was shown that one local generic product of Sodium Ceftriaxone islook like the original one.
دراسة العلاقة بين امتصاص الرطوبة عند درجة حرارة ثابتة و زمن إعادة التشكيل للمساحيق المعدة للاستخدام الصيدلاني
During the season of 2002, samples of olive fruit were taken (Ashrasi type)
from Ninavah horticulture’s station that belongs to the ministry of agriculture
in Iraq. The purpose of this research is to study some physical and chemical
characteristic
s during the growing period, from July until October. Those
characteristics include moisture, ash, oil content, chlorophyll A & B, protein,
pH and carbohydrate, In addition to fruit length, size, weight, radius, and
rigidity. The results showed significant increase in moisture, oil, weight, size
and length of the fruit were studied. Significant reduction was noticed in the
percentages of the protein, carbohydrate, ash and the fruit rigidity. The highest
values of chlorophyll were observed during The month of September. October
considered as the best time to harvest olive fruits for pickle purpose.
This study is devoted to the durability of bituminous mixtures,
including the effects of different gradations, compaction
temperatures and immersion time on the durability potential of
mixtures.
