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The Role of Energy Storage in Mitigating Wind Power Intermittency
No full textEffective mitigation of wind power intermittency requires cutting-edge energy storage solutions since it poses great problems for grid stability and dependable electricity supply. This study examines the crucial function of energy storage systems in resolving wind power variation by thorough examination of grid integration methods, hybrid storage configurations, and battery technology. For their ability to smooth wind power variations, the research assesses Battery Energy Storage Systems (BESS), Compressed Air Energy Storage (CAES), and lithium-ion technologies. Using HOMER and MATLAB optimization techniques, including Particle Swarm Optimization and Robust Model Predictive Control, the best energy storage configurations are found for several wind farm situations. Results show that BESS performs better in voltage stabilization and frequency regulation while keeping grid stability measures within permissible levels. Economic study shows that combining lithium-ion batteries into 30 MW wind farms has a positive Net Present Value, which means they are good for business. These results show that energy storage is very important for making wind power more popular because it helps to solve the technical and economic problems that come with wind power varying. This supports the change to renewable energy, which is good for the environment
Classification of Myocardial Infarction and COVID-19 Related Cardiac Injury from ECG Signals Using Advanced Deep Learning Architecture
No full textCardiovascular diseases, particularly Myocardial Infarction (MI), are still a primary cause of international mortality. The last COVID-19 pandemic has further complicated the cardiac health landscape, with the virus known to induce cardiac injuries such as Advanced heart block (AHB) and Myocardial Injury (HMI). The Electrocardiogram (ECG) is a primary, non-invasive diagnostic tool for these conditions. This paper presents a comprehensive comparative analysis of three state-of-the-art deep learning architectures—ResNet-50, YOLOv8, and Meta CLIP—for the automated classification of cardiac conditions from ECG signals. We collected a dataset comprising ECG traces from several sources with MI, AHB, HMI, COVID-19, and normal rhythm. Each model was trained and validated on this dataset. Our experimental results demonstrate exceptional performance across all architectures. ResNet-50 and YOLOv8 achieved a training accuracy of 0.99 and 0.97, respectively, with training losses of 0.0982 and 0.181. whereas the Meta CLIP model achieved a training loss of 0.106 and an accuracy of 0.99, with commensurate high validation accuracy. The findings suggest that deep learning models, originally designed for computer vision, can be effectively adapted for robust and accurate ECG analysis, paving the way for enhanced clinical decision-support system
Column Study on Adsorption-Desorption Behavior of Pharmaceutical Pollutants from Synthetic Water by Immobilized Chlorella Sorokiniana Algae
No full textThe release of pharmaceutical contaminants, especially antibiotics, into the ecosystem is a major environmental concern. This study evaluates the effectiveness of the adsorption and desorption process for ciprofloxacin and rifampicin, two common antibiotics due to their known adverse environmental effects. The adsorption process was conducted using a moving column filled with immobilized Chlorella Sorokiniana algae. The study aimed to understand the effect of flow rate on column efficiency and the formation of the breakthrough curve under different operating conditions. The column was set up with a diameter of 4 cm and a length of 90 cm, and the drug solution was pumped at various flow rates (1, 5, and 10 ml/min). Samples were collected from the column outlet at specific time intervals, and the drug concentration was analyzed using a UV-Vis device. The results showed that increasing the flow rate decreased the time required to reach the drug\u27s breakthrough point, with a steeper curve and faster column saturation. After adsorption was complete, the drug removal process was performed using a suitable solvent (5% nitric acid) to ensure drug recovery and analyze the process performance. The results showed an increase in the removal rate during the first 60 minutes, followed by a decrease with time. Mathematical models (Yoon-Nelson, Adams-Bohart, and Thomas), were applied to simulate the adsorption curves and determine the column capacity and removal efficiency. They also helped estimate the effect of flow rate on column dynamics. The models indicated that the column can remove a high percentage of the drug at low flow rates. This study provides a qualitative improvement in the design of moving columns for use in treating wastewater containing pharmaceuticals. The study provides realistic operational data from which precise, detailed adsorption processes can be designed by determining optimal flow rates and other operating conditions to achieve high efficiency. The results can be generalized to other pharmaceuticals. Therefore, it can be considered a practical framework for applying adsorption and dissolution processes in industrial and laboratory settings, leading to the development of management strategies for pharmaceutical-contaminated water to minimize its environmental impacts.
pdf The role of date palm pollen grains extract in fertility improving
No full text
The impact of the ethanol extract of date palm pollen grains (DPP) was examined in the fertility enhancement of female rats exposed to oxidative stress by sodium nitrite. forty female mature rats assessing 150- 200 g were grouped into five groups. First group were received distilled water save as control group, The second group was administered 100 mg/kg of crude DPP extract, third group received 100 mg/kg of crude DPP extract combined with 100 mg/kg body weight of sodium nitrite, forth group received 100mg/kg B.W of sodium nitrite, while fifth group was drenched 100mg/kg B.W of sodium nitrite for 28 days then 100mg/kg of crude DPP extract for another 14 days. Then we added the same number of mature male rats to determination the ability of DPP extract for fertility enhancement. the Animals were kept until the parturition occurred then determination the pregnancy index, fertility index, and viability index. The DPP extract caused clear changes in percentage of the parameters of pregnancy, viability and fertility indexes compared to the groups exposed to sodium nitrite, and also following the treatment of animals with DPP extract after exposure to sodium nitrite showed improvement of fertility and pregnancy indexes. The best enhancement activity of DPP extract was clarified in the result of long term treatment (fourth group). Conclusions: The study showed the ability of palm pollen grain extract to improve fertility and protective effects and treatments the harmful effects of sodium nitrite.
pdf Prevalence and Zoonotic Potential of Chlamydia Psittaci in Domestic Pigeons from Baghdad: ELISA and Rapid Test Insights: Dr. Suhail W. Al Sultani, Atheer A. Al Doori and Farah T. Samawi
No full textBecause of their high prevalence and link to respiratory disorders in humans, pigeons are a common host and natural reservoir of Chlamydia psittaci, the etiological agent of avian chlamydiosis, which is regarded as a neglected zoonotic disease and public health concern. This study sought to ascertain the prevalence of C. psittaci as a possible infection source in domestic pigeon (Columba livia domestica) oropharyngeal samples. This bacterium\u27s major outer membrane protein (MOMP), the most prevalent protein in its membrane, has been assessed for use in a number of diagnostic procedures in addition to being a potential vaccine candidate. A total of 150 swab samples from domestic pigeons were collected in Baghdad Iraq, from October 2023 to April 2024. The specific antigen (MOMP) of C. psittaci was detected using both the Rapid Screening Test for Chlamydia (cassette) and the enzyme-linked immunosorbent assay (ELISA). The results showed that out of the 150 samples examined, 60 (40%) tested positive for C. psittaci antigen using the rapid diagnostic test, while 40 (27%) were positive with the ELISA test. Our knowledge of the consequences of these infections for both human and avian health will improve if we can better understand how this bacterium affects avian host fitness and its zoonotic potential.
pdf Blood Pressure in a Sample of Al-Ramadi City: A Quantitative Genetic Study: Louay Al-Ani, Kareem A. Hammadi, and Huda M. Mahmood
No full textIt is commonly known that genetics plays a part in blood pressure and the risk of hypertension. Nevertheless, few studies have been done to identify the genetic differences that contribute to the heritability value. Therefore, the current work uses full-sib analysis on Iraqi individuals in Ramadi, west of Iraq, to assess the genetic influences on intra-individual variance of blood pressure limitations.
100 people in all, including 27 families, were identified. This study looks at the advancements and challenges of research. This study presented that communal genetic differences in a narrow set of genes that influence blood pressure is unlikely to impact the genetic manner of blood pressure control in the inhabitants. Rare variation, which primarily affects pedigrees rather than the population, may instead be responsible for heritability. In the coming years, high blood pressure genetics is expected to concentrate on rare variants across a wide range of genes. The difficulties that need to be overcome and the methods being developed to find this genetic diversity are described.
Therefore, findings propose that diastolic and systemic pulse pressure is crucial characteristics that influence the blood pressure phenotype, and any blood pressure management program would be most effective based on these characteristics
Invitation Acceptance Strategies among Iraqi EFL Learners
No full textThe present study examines invitation acceptance strategies used by Iraqi Arab English foreign language learners. The instrument used to collect the data was an open-ended Discourse Completion Task, comprising three situations when a lower-status interlocutor accepts an invitation made by a higher-status interlocutor with close, familiar, and distant social distance. The data were coded according to Garca\u27s (2008) and Fan Zhu\u27s (2012) categorization of invitation acceptances strategies. The study showed that Iraqi Arab EFL Learners employed 26 types of strategies when accepting invitations, 11 additional types more than those in Fan Zhu\u27s (2012) study. Supportive move was the most dominant strategy compared to head acts across the three levels of social distance. Also, Iraqi Arab EFL learners preferred directness rather than indirectness when accepting invitations indicating that they perceive it as a face-saving speech act. Gratitude was the most prominent strategy used across the three situations followed by direct acceptance. However, Iraqi Arab EFL learners varied their preference towards other types of strategies according to the social distance of the interlocutors. They employed solidarity as the third preferred strategy when interlocutors share close social distance. When social distance is familiar, well-wishing was the third favoured strategy, while compliment was the dominant when the social distance was distant. Some new strategies such as giving a reason for acceptance, promising to attend, contribution, praying, and honorifics employed by Iraqi Arab EFL learners were not included in Fan Zhu\u27s (2012) classification. Pedagogically, based on the findings of this study, Iraqi EFL Educators could provide pragmatic instruction on how to successfully and appropriately perform invitation acceptance in English taking into consideration both its grammatical structure and the social and culture norms of the target language, and how people perceive this speech act in their native language, i.e., English. In turn, Iraqi Arab EFL learners can develop effective pragmatic competence.The present study examines invitation acceptance strategies used by Iraqi Arab English foreign language learners. The instrument used to collect the data was an open-ended Discourse Completion Task, comprising three situations when a lower-status interlocutor accepts an invitation made by a higher-status interlocutor with close, familiar, and distant social distance. The data were coded according to Garca\u27s (2008) and Fan Zhu\u27s (2012) categorization of invitation acceptances strategies. The study showed that Iraqi Arab EFL Learners employed 26 types of strategies when accepting invitations, 11 additional types more than those in Fan Zhu\u27s (2012) study. Supportive move was the most dominant strategy compared to head acts across the three levels of social distance. Also, Iraqi Arab EFL learners preferred directness rather than indirectness when accepting invitations indicating that they perceive it as a face-saving speech act. Gratitude was the most prominent strategy used across the three situations followed by direct acceptance. However, Iraqi Arab EFL learners varied their preference towards other types of strategies according to the social distance of the interlocutors. They employed solidarity as the third preferred strategy when interlocutors share close social distance. When social distance is familiar, well-wishing was the third favoured strategy, while compliment was the dominant when the social distance was distant. Some new strategies such as giving a reason for acceptance, promising to attend, contribution, praying, and honorifics employed by Iraqi Arab EFL learners were not included in Fan Zhu\u27s (2012) classification. Pedagogically, based on the findings of this study, Iraqi EFL Educators could provide pragmatic instruction on how to successfully and appropriately perform invitation acceptance in English taking into consideration both its grammatical structure and the social and culture norms of the target language, and how people perceive this speech act in their native language, i.e., English. In turn, Iraqi Arab EFL learners can develop effective pragmatic competence
Impact of saline wastewater on the behaviour of aerobic granular sludge (AGS)
No full textThis study delves into the impact of influent salinity on the efficacy of aerobic granular sludge (AGS) in wastewater treatment. It emphasizes the influence of salinity on vital biological processes like organic elimination, denitrification, nitrification, and phosphate removal while assessing the applicability of AGS technology under varying salinity conditions. The research further examines how salinity shapes microbial diversity and structure within the AGS framework. Utilizing three separate sequential batch reactors with distinct NaCl concentrations (2000, 5000, and 10000) mg/l, the research analyzed aspects such as sludge properties, settling speed, sludge volume index, and the efficiency of COD and NH4-N removal. Findings underscored that increased salinity levels from, (2000 to 10000) mg/l adversely affected AGS operations, resulting clear drop in removal efficiencies: from 94% to 68% for COD, from 91% to 52% for NH4, from 80% to 20% for TN and caused reducing in settling speeds, granular deterioration,. Moreover, the microbial composition within the AGS was notably influenced by escalated salinity concentrations. This study offers crucial perspectives on the potential challenges of employing AGS technology for saline wastewater treatment and underscores the importance of additional investigations in this domain.
pdf Comparative Study of Development and Formulation of Syrups Based on Non-Nutritive Non- Glycogenic Sweetener
No full textBackground: Syrups represent a type of liquid medication; these liquid pharmaceuticals are typically preferred for their convenience in administering to individuals such as children and the elderly who may struggle with swallowing solid medications. This research work was conducted to: First Prepare, develop and design stable, non-medicated simple syrups based on non-nutritive and non-glycogenesis sweeteners such as Stevia and Monk Fruit sugars. Second compare these syrups in terms of physical and microbiological properties with sucrose and fructose based syrups. The sweeteners used in this study were Stevia, Monk Fruit, Sucrose, Fructose, Cane sugar and Honey in order to prepare stable simple syrups. The syrups were prepared by simple solution method with the aid of heat. The sweetener was dissolved in purified water with a continuous agitation. The prepared syrups were evaluated for the following parameters Physical appearance (color, odor, and taste), pH, Refractive index, Conductivity, Optic rotation, Specific gravity, Viscosity and Microbiological studies. The study showed that syrups based on non-nutritive sweeteners such as Stevia 1% w/w and Monk Fruit 5% w/w, 10%w/w are stable in terms of the parameters of evaluation and tests that were carried out during the 6 months of the study at room temperature and 50 oC, in addition to that, no color changes, no sedimentation, no recrystallization nor growth of any type of microscopic organism were detected. Stevia 1% w/w and Monk fruit 5% and 10 % w/w can be used to prepare stable simple syrup as well as sucrose 66.7 % w/w based syru
Evaluation of immunoglobulin levels (IgE, IgM, and IgG) and nasal symptoms among wheat flour mill workers in Najaf city: Zaid M. Mohammed Al-Hakkak
No full text The inhalation of particles from wheat flour in the workplace has been linked to an inflammatory reaction. This study examined the frequency of nasal symptoms among wheat flour mill employees in Najaf city. The study evaluated immunological parameters, including IgE, IgG, IgM, anti-gliadin IgA and IgG antibodies, and nasal smear eosinophil count, in 48 not smokers male flour mill employees (mean age: 35.83±8.3 years, mean duration of employment: 9.22±3.16 years) and 37 unexposed non-smokers (mean age: 35.78±8.66 years).
In addition, Using a standardized questionnaire, 80 non-smoker male flour mill employees and 70 unexposed non-smokers were assessed for nasal symptoms. The study group was separated into three job-type subgroups: cleaning employees (high exposure), packing employees (intermediate), and milling employees (low exposure). The results indicated a significant rise (P≥0.05) in total IgE and IgM serum levels among packing and milling employees compared to the control group.
The results demonstrated a significantly elevated (p≥0.05) percentage of positive anti-gliadin IgG and nasal eosinophil counts in cleaning employees compared to the control group and milling employees. The study noted an elevated prevalence (p≥0.05) of nose symptoms, such as sneezing, nasal irritation, rhinitis, and nose catarrh, among all three occupational categories. The findings indicated a significant correlation (P<0.05) between average serum concentrations of IgE, IgG, and IgM and the period of employment of wheat flour mill employees