Studies on photoionization

Imperial Users onl

Stress Corrosion Cracking of Stainless Steels used in Manufacturing Brine Circulating Pumps used in Desalination Plants.

In earlier works, characterization and stress corrosion cracking of casings of brine recirculation pumps used in desalination plants was investigated. These casings, which were manufactured from two types of Ni resist ductile irons, were reported to show different service lives. Material selection of casings is believed to be one of possible factors to extend the service lives of these pumps. Two types of stainless steels; UNS S31603 and UNS S32750 were recommended as substitutes to Ni resist ductile irons. In this work, mechanical, metallurgical, electrochemical and stress corrosion cracking (SCC) tests were conducted on as received samples, made from these two types of stainless steels. As stress corrosion cracking rig was constructed, calibrated and connected to an internet webcam for monitoring purposes. Results have shown considerable higher yield and tensile strengths and corrosion resistance for the UNS S32750 over the UNS S31603. Electrochemical tests confirmed this behavior and have shown reproduced pitting attack illustrated by measured pitting potentials and visual observations for the UNS S31603 samples. UNS S32750 samples have shown no signs of pitting. Furthermore, stress corrosion cracking tests in the hot brine environment have shown less resistance to stress corrosion for UNS S31603 samples as demonstrated by sample cracking failures after few days of stress corrosion testing. No stress corrosion cracking was observed for UNS S32750 samples under the same testing conditions

Detection of Lupeol in Calendula Officinalis Grown in Iraq by GC-MS Analysis

Triterpenes are abundant group of natural compounds with important structural components of plant’s cell membranes. Free triterpenes stabilize phospholipid bilayers in plant cell membranes just as cholesterol does in animal cell membranes. Lupeol is a pentacyclic trite- rpene reported to have important physiological and therapeutic effects in human health issues, therefore its extraction from Calendula officinalis flowers and detection by GC-MS is of significant importance

An IoT Healthcare System With Deep Learning Functionality for Patient Monitoring

Currently, healthcare systems operate under conventional management practices and entail storing and processing substantial medical data. Integrating the Internet of Things (IoT) and wireless sensor networks (WSNs) technologies has facilitated the development of IoT-enabled healthcare, which possesses advanced data processing capabilities and extensive data storage. This paper proposes a WSN and IoT framework for patient monitoring in high-speed 5G communications. Based on an artificial neural network (ANN), an intelligent health monitoring system was developed using IoT technology to monitor a person's blood pressure, heart rate, oxygen level, and temperature. Furthermore, the system helps the elderly being in critical cases in their homes to communicate and update their medical condition with the hospital, especially in critical cases, to be treated as soon as possible, especially in remote areas. The experimental results showed the superiority and effectiveness of the proposed system. Moreover, relying on ANNs to extract the basic features, the accuracy reached 96%. The proposed system was implemented practically, and the results were displayed in real time and compared with commercial medical devices. Maximum relative errors are heart rate (2.19), body temperature (2.94), systolic blood pressure (3.4), diastolic blood pressure (2.89), and SpO2 (1.05). On the other hand, the proposed system is much faster than other wireless communication methods, regardless of the detection quality

Retracted: Performance Analysis of Internet of Things Protocols Based Fog/Cloud over High Traffic

This article was withdrawn and retracted by the Journal of Fundamental and Applied Sciences and has been removed from AJOL at the request of the journal Editor in Chief and the organisers of the conference at which the articles were presented (www.iccmit.net). Please address any queries to [email protected]

Taxonomical study of Caroxylon jordanicola (Eig) Akhani & Roalson (Amaranthaceae) in Al-Tar Caves, Karbala, Iraq

The present study dealt with the morphological, anatomical,trichomespollen grains,and ecological characteristics of Caroxylon jordanicola (EigAkhani & Roalson (Amaranthaceae) in Al-Tar Caves, Karbala, Iraq which belongs to the Amaranthaceae family. The results of the present study demonstrated that There are distinctive characteristics of the studied species distinguish it from other species and facilitate its diagnosis. The sample was diagnosed using the taxonomic keys of the Iraqi flora and the flora of neighboring countriesIn addition to some available research. The results of the morphological and anatomical features investigation provide really significant taxonomical value to distinguish the species. The results that showed that this species is annual to 40 cm, semi- spherical, lower leaves 1-3 cm, caduceus, other leaves to 2.5 mm, with broad, has non-glandular trichomes and glandular trichomes. The species recorded 7 μm the average thickness of the cuticle layer. cortex thickness was also recorded and measured, which was 210 μm. the average thickness of Phloem was 40μm, It has the presence of a bundle cap fibers (Bundle sheath) which consists of sclerenchyma fibers that appear in a ring around the Phloem. The average thicknesof  xylem was 190 μm and  pith thickness was 240 μm

Morphoanatomical study of some species from fabaceae family in Iraq

The current study dealt with comparative morphological and anatomical study of different species of Leguminosae family in Iraq. The study included seven species : Albizia lebbeck Benth. , Alhagi maurorum Medik. , Cassia sopheral Roxb. , Leucaena leucocephala Lam. , Medicago sativa Boiss., Trifolium repens Boiss, Vicia tenuifolia Roth. .The morpho-anatomical study is very important to distinguish between them. Samples of the study were collected from different areas in Iraq during flowering period between 2021-2022. In the present research, cuticular and epidermal anatomical features were described, in addition to the anatomical features of stems, leaves and petiole. Results showed that some of the morphological and anatomical characters of studied parts have good taxonomic value to distinguish between above studied species. Epidermis characters have taxonomic significance , espeically the nature of anticilinal walls and types of stomatal complexes , while dimensions of stem cells and the rates of the length of stomata were limited taxonomic importance . The general shapes of cross – sections of stem showed great taxonomic significance for isolation species , as well as cortex thickness .