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Assessment of Heavy Metals Pollution in the Sediments of Euphrates River, Iraq

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Journal of Water Resource and Protection 2012年第12期4卷 1009-1023页

作者： emad A. Mohammad salah Tahseen A. Zaidan Ahmed S. Al-Rawi Department of Applied Geology College of Science University of Anbar Ramadi Iraq Department of Chemistry College of Science University of Anbar Ramadi Iraq

Fourteen bed sediments samples were collected from the Euphrates River in order to determine concentrations, seasonal, spatial and contamination assessment of heavy metals such as Pb, Cd, Zn, Cu, Ni, Co, Fe, Mn and Cr. The mean concentrations are as follows: 2249.47 mg/kg for Fe, 228.18 mg/kg for Mn, 67.08 mg/kg for Ni, 58.4 mg/kg for Cr, 48.00 mg/kg for Zn, 28.16 mg/kg for Co, 22.56 mg/kg for Pb, 18.91 mg/kg for Cu and 1.87 mg/kg for Cd. To assess metal contamination in sediments, sediment quality guidelines were applied. The mean concentration of Cd, Cu, Ni, Fe, Mn, and Cr exceeded the USEPA guideline. The metal contamination in the sediments was also evaluated by appling enrichment factor (EF), contamination factor (CF), geo-accumulation index (Igeo) and pollution load index (PLI). Based on enrichment factor (EF), the Euphrates River sediments have very high enrichment for Pb, extremely high for Cd, moderate for Zn, significant to very high for Ni, very high to extremely high for Co, moderate to significant for Mn and significant to very high for Cr. According to contamination factor (CF), Cd and Cr are responsible for very high contamination. According to Igeo, the Euphrates River sediments are moderately to strongly polluted by Cd. Based on PLI, all sampling sites suggest no overall pollution of site quality.

关键词： Heavy Metals Euphrates River Sediments Pollution Iraq

Qualitative Interpretation of Gravity and Aeromagnetic Data in West of Tikrit City and Surroundings, Iraq

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International Journal of Geosciences 2017年第2期8卷 151-166页

作者： emad Mohammed salah Al-Heety Mahmoud Abdullah Al-Mufarji Losyan Habeeb Al Esho Department of Applied Geology University of Anbar Rammadi Iraq Department of Geology University of Kirkuk KirKuk Iraq Department of Geology University of Mosul Mosul Iraq

The qualitative interpretation of anomalies of the gravity and the magnetic fields at the west of Tikrit City and surroundings, Iraq, was carried out. According to the tectonic framework of Iraq, the study area is classified as a part of the stable shelf unit. The polynomial technique was employed to separate the residual-regional anomalies as a first step in the qualitative interpretation. Bouguer gravity anomaly map did not exhibit any clear closures. The magnetic maps showed remarkable high closure in the central eastern part of the study area. The regional gravity and magnetic fields values decline towards the eastern parts of the maps (Mesopotamian Basin) in consistent with the increase in the sedimentary cover (basement depth). The residual gravity and magnetic maps displayed several positive and negative closures. The gravity and magnetic lineaments were depicted and superimposed on the tectonic map of the study area. The rose diagram showed that the dominant orientation of the gravity and magnetic lineaments was toward NE-SW.

关键词： Qualitative Interpretation Residual Gravity Residual Magnetic Gravity Lineaments Iraq

Dartos Fascio-Myo-Cutaneous Flap for Penile Skin Loss: A Simple Flap with an Immense Potential

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Surgical Science 2014年第1期5卷 6-9页

作者： Adel M. Tolba Ahmed Abo-hashem Azab Mohamed Aly Nasr emad salah Plastic Surgery Unit General Surgery Department Zagazig University Zagazig Egypt

Introduction: Penile skin loss poses a particular challenge for reconstruction to the plastic surgeon. These defects, depending on their size, have been reconstructed using skin grafts or regional flap. Patients & Methods: Ten patients with variable sized penile skin defects were included in this work. Scrotal fascio-myo-cutaneous (Dartos) flap was harvested and used for penile shaft resurfacing. Results: All harvested flaps were successful. None of them showed any ischemic manifestations. Discussion: Despite being a simple and robust flap, its use for resurfacing of moderate to extensive penile skin defects isn’t popular. We propose the use of Dartos flap as a good alternative for challenging moderate to extensive penile skin losses.

关键词： Scrotal Blood Supply Penile Skin Loss Penile Reconstruction

Percutaneous Mesh Expansion and Fixation at the Retro-Rectus Plane without Stabs by Using Redirecting Suture Hook in Midline Hernias Repair

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Surgical Science 2011年第4期2卷 177-182页

作者： Ahmed E Lasheen Alaa N. El Sadek Adel M Tolba emad salah Ayman F Mehanna 不详

Background: Mesh expansion and fixation at retro-rectus plane through multiples stabs produces good results. But these stabs cause cosmetic disorders for the patients and doctors. So, we find some modification to do this procedure without these stabbing wounds in midline hernial repair. Patients and methods: This technique was used to fix the mesh at retro-rectus plane in 50 patients suffering from midline hernias, from January 2008 through January 2010 at Zagazig university Hospital, Egypt. Laparotomy incision was done over the hernial sac or at old incision;the contents were then released and reduced into peritoneal cavity without much subcutaneous dissection. The suitable sheet of polypropylene mesh to cover the hernial defect and any weak area was prepared and fixed at retro-rectus plane percutaneously without stabbing wounds by using redirecting suture hook. The mean period of follow up was 26 months. Results: There was no recurrence during the period of follow up. Five patients developed subcutaneous bluish discoloration at the site of some stitches, which disappear within two weeks with conservative treatment. Conclusion: Percutaneous mesh expansion and fixation at retro-rectus plane by using redirecting suture hook procedure has good results in recurrence rate and cosmetic appearance.

关键词： Percutaneous Fixation Retro-Rectus Mesh Redirecting Suture Hook

Optimizing care for gastric cancer with overt bleeding:Is systemic therapy a valid option?

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World Journal of Clinical Oncology 2025年第1期16卷 1-4页

作者： emad Qayed Department of Medicine Division of Digestive DiseasesEmory University School of MedicineAtlantaGA 30303United States

Gastric cancer(GC)and gastroesophageal junction cancer(GEJC)represent a significant burden globally,with complications such as overt bleeding(OB)further exacerbating patient outcomes.A recent study by Yao et al evaluated the effectiveness and safety of systematic treatment in GC/GEJC patients presenting with *** propensity score matching,the study balanced the comparison groups to investigate overall survival and treatment-related adverse *** study's findings emphasize that systematic therapy can be safe and effective and contribute to the ongoing debate about the management of advanced GC/GEJC with OB,highlighting the complexities of treatment decisions in these high-risk patients.

关键词： Gastric cancer Overt bleeding Systemic therapy Endoscopic therapy Hemostasis

Age structure and static life tables of the endangered Juniperus phoenicea L. in North Sinai Mountains, Egypt:implication for conservation

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Journal of Mountain Science 2020年第9期17卷 2170-2178页

作者： emad A.FARAHAT Botany and Microbiology Department Faculty of ScienceHelwan UniversityCairoEgypt

Studying the population ecology of endangered plants provides important baseline information for its monitoring and *** phoenicea *** an endangered species in arid ecosystems in Africa and the Middle *** static life tables,survival curve and age structure of *** populations from two mountains in North Sinai,Egypt(Gabal(G.)El-Halal and ***-Maghara)were *** each mountain,fifteen plots were selected,and field measurements such as stand density,tree height,and crown diameter were ***,44 trees were cored and crossdated according to standard dendrochronological *** results showed that the tree ages ranged from 50 to 262 years at ***-Halal and 96 to431 years at *** *** individuals dominated the study area,with only a few individuals being younger than 100 ***,seedling recruitment was extremely *** the studied *** populations showed high mortality rates among both old and young individuals,there is an imminent need for establishing a conservation program to prevent its extinction in the ***,management and conservation efforts should be made to minimize human disturbance and protect the relic habitats of this endangered species at its southern distribution limits in Africa.

关键词： Juniperus phoenicea Age distribution Life history Mortality Endangered plant Sinai

Numerical analysis of frictional behavior of dense gas-solid systems

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Particuology 2017年第3期15卷 178-190页

作者： emad Ghadirian Hamid Arastoopour Gamma Technologies LLC. 601 Oakmont Ln Suite 220. Westmont IL 60559 USA Department of Chemical and Biological Engineering Illinois Institute of Technology. Chicago IL 60616 USA Wanger Institute for Sustainable Energy Research Illinois Institute of Technology Chicago IL 60616 USA

Dense gas-solid flows show significantly higher stresses compared with dilute flows, mainly attributable to particle-particle friction in dense particle flows. Several models developed have considered particle-particle friction; however, they generally underestimate its effect in dense regions of the gas-solid system, leading to unrealistic predictions in their flow patterns. Recently, several attempts have been made to formulate such flows and the impact of particle-particle friction on predicting flow patterns based on modified frictional viscosity models by including effects of bulk density changes on frictional pressure of the solid phase. The solid-wall boundary is also expected to have considerable effect on friction because particulate phases generally slip over the solid surface that directly affects particle-particle frictional forces. Polydispersity of the solid phase also leads to higher friction between particles as more particles have sustained contact in polydispersed systems. Their effects were investi- gated by performing CFD simulations of particle settlement to calculate the slope angle of resting material of non-cohesive particles as they settle on a solid surface. This slope angle is directly affected by frictional forces and may be a reasonably good measure of frictional forces between particles. The calculated slope angle, as a measure of frictional forces inside the system are compared with experimental values of this slope angle as well as simulation results from the literature.

关键词： Solid frictional pressure Particle-particle frictional forcesL-valve Computational fluid dynamics (CFD)Polydispersity Angle of repose

Theoretical-period characteristics of frame buildings designed under variable levels of seismicity and allowable-drift

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Earthquake Engineering and Engineering Vibration 2020年第3期19卷 669-681页

作者： Hamdy Abou-Elfath emad Elhout Structural Engineering Department Faculty of EngineeringAlexandria UniversityAlexandria 21544Egypt Higher Institute of Engineering and Technology King-MarriottAlexandriaEgypt

Period equations provided by seismic codes are generally derived by calibration with recorded period data of buildings located in high seismicity *** period-equations do not account for either the design level of seismicity or the permissible limit of lateral *** designed under high level of seismicity are expected to display higher stiffness and shorter periods than buildings designed under low-to-medium seismicity *** addition,buildings designed with high level of permissible lateral-drift are expected to display lower stiffness and longer periods than buildings designed with low level of permissible *** this study,the theoretical fundamental-periods of an ensemble of regular reinforced concrete(RC)and steel moment-resisting frame(MRF)buildings having 3-,6-,9-and 12-stories and designed with various levels of seismicity and permissible lateral-drift are *** obtained outcome indicates the sensitivity of the MRF theoretical-periods to the design seismicity and the permissible *** results also indicate the need for modifying the current period equations to realistically account for the variations in the design seismicity and allowable lateral-drift of MRF buildings.

关键词： concrete frame stiffness

Semantic Document Layout Analysis of Handwritten Manuscripts

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Computers, Materials & Continua 2023年第5期75卷 2805-2831页

作者： emad Sami Jaha Department of Computer Science Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia

A document layout can be more informative than merely a document’s visual and structural ***,document layout analysis(DLA)is considered a necessary prerequisite for advanced processing and detailed document image analysis to be further used in several applications and different *** research extends the traditional approaches of DLA and introduces the concept of semantic document layout analysis(SDLA)by proposing a novel framework for semantic layout analysis and characterization of handwritten *** proposed SDLA approach enables the derivation of implicit information and semantic characteristics,which can be effectively utilized in dozens of practical applications for various purposes,in a way bridging the semantic gap and providingmore understandable high-level document image analysis and more invariant characterization via absolute and relative *** approach is validated and evaluated on a large dataset ofArabic handwrittenmanuscripts comprising complex *** experimental work shows promising results in terms of accurate and effective semantic characteristic-based clustering and retrieval of handwritten *** also indicates the expected efficacy of using the capabilities of the proposed approach in automating and facilitating many functional,reallife tasks such as effort estimation and pricing of transcription or typing of such complex manuscripts.

关键词： Semantic characteristics semantic labeling document layout analysis semantic document layout analysis handwritten manuscripts clustering retrieval image processing computer vision machine learning