Abstract

One of the most suitable materials to be used in latent heat thermal energy storage system (LHTES) are Phase change materials, but a problem of slow melting and solidification processes made many researchers focusing on how to improve their thermal properties. This experimental work concerned with the enhancing of thermal conductivity of phase change material. The enhancing method was by the addition of copper Lessing rings in phase change material (paraffin wax). The effect of diameter for the used rings was studied by using two different diameters (0.5 cm and 1cm). Also, three volumetric percentages of rings addition (3%, 6% and 10%) were tested for each diameter. The discharging process was done with

The aim of the research is to investigate the effect of cold plasma on the bacteria grown on texture of sesame paste in its normal particle and nano particle size. Starting by using the image segmentation process depending on the threshold method, it is used to get rid of the reflection of the glass slides on which the sesame samples are placed.  The classification process implemented to separate the sesame paste texture from normal and abnormal texture. The abnormal texture appears when the bacteria has been grown on the sesame paste after being left for two days in the air, unsupervised k-mean classification process used to classify the infected region, the normal region and the treated region. The bacteria treated with cold plasma, t

Biodegradation is utilizing microorganisms to degrade materials into products that are safe for the
environment, such as carbon dioxide, water, and biomass. The current study aims to isolate and characterize
bacteria with polyethylene terephthalate (PET) degradation ability isolated from Shatt al-Arab water and
sewage from Basra, the bacteria were identified as Klebsiella pneumonia. According to the findings, the
isolates showed a highly significant difference in degradation of PET (24% during 7 days) and the percent of
degradation increased to 46% at 4 weeks compared to the control. The study also involved determining the
optimum temperature of K. pneumonia growth, which was 37°C, while the preferred

The presence of the other representations in the story of modern Arabic
The other who seek to discuss his presence is the other west, and is nothing new to bring the other whatever, especially the Western literature, especially after the opening of the East West and the occurrence of encounters many Whatever the reasons for them or their causes, and the prevalence of the phenomenon influenced by this Western, and therefore his presence in this literature of any had sex. And certainly our presence (we) also in the literature of the other, and this is very natural, created by the convergence of intellectual, cultural and human, which led to the emergence of the cultural theme of conflict between East and West, and these conflicts take d

مفهوم البعد الواحد في الرسم العراقي المعاصر

الآت الاطفال الموسيقية الشعبية والتقليدية في التربية

المنظومة الصورية والتعبير اللغوي في العرض المسرحي

التطور الدلالي لمعاني الكلمات في اللغة العبرية

تدريس مادة القراءة باللغة الروسية في العراق

الرؤيا واداء التشكيل في النحت العراقي المعاصر