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Intelligent Fractional-Order Controller for SmES Systems in Renewable Energy-Based microgrid

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Computer modeling in Engineering & Sciences 2024年第8期140卷 1807-1830页

作者： Aadel m.Alatwi Abualkasim Bakeer sherif A.Zaid Ibrahem E.Atawi Hani Albalawi Ahmed m.Kassem Electrical Engineering Department Faculty of EngineeringUniversity of TabukTabuk47913Saudi Arabia Industrial Innovation and Robotic Center(IIRC) University of TabukTabuk47731Saudi Arabia Department of Electrical Engineering Faculty of EngineeringAswan UniversityAswan81542Egypt Renewable Energy and Environmental Technology Centre University of TabukTabuk47913Saudi Arabia Electrical Engineering Department Faculty of EngineeringSohag UniversitySohag82524Egypt

An autonomous microgrid that runs on renewable energy sources is presented in this *** has a supercon-ducting magnetic energy storage(SmES)device,wind energy-producing devices,and an energy storage ***,because such microgrids are nonlinear and the energy they create varies with time,controlling and managing the energy inside them is a difficult ***-order proportional integral(FOPI)controller is recommended for the current research to enhance a standalone microgrid’s energy management and *** suggested dedicated control for the SmES comprises two loops:the outer loop,which uses the FOPI to regulate the DC-link voltage,and the inner loop,responsible for regulating the SmES current,is constructed using the intelligent FOPI(iFOPI).The FOPI+iFOPI parameters are best developed using the dandelion optimizer(DO)approach to achieve the optimum *** suggested FOPI+iFOPI controller’s performance is contrasted with a conventional PI controller for variations in wind speed and microgrid *** optimal FOPI+iFOPI controller manages the voltage and frequency of the *** behavior of the microgrid as a reaction to step changes in load and wind speed was measured using the proposed *** simulations were used to evaluate the recommended system’s *** results of the simulations showed that throughout all interruptions,the recommended microgrid provided the load with AC power with a constant amplitude and *** addition,the required load demand was accurately ***,the microgrid functioned incredibly well despite SmES and varying wind *** obtained under identical conditions were compared with and without the best FOPI+iFOPI *** utilizing the optimal FOPI+iFOPI controller with SmES,it was found that the microgrid performed better than the microgrid without SmES.

关键词： Fractional-order proportional integral(FOPI) intelligent controller renewable energy resources superconducting magnetic energy storage optimization

Comparative study between three carbonaceous nanoblades and nanodarts for antimicrobial applications

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Journal of Environmental Sciences 2024年第2期136卷 594-605页

作者： mohamed S.Selim Ahmed m.Azzam mohamed A.Shenashen Shimaa A.Higazy Bayaumy B.mostafa sherif A.El-Safty National Institute for materials Science(NImS) 1-2-1 SengenTsukuba-ShiIbaraki-Ken 305-0047Japan Petroleum Application Department Egyptian Petroleum Research InstituteNasr City 11727Egypt Department of Environmental Research Theodor Bilharz Research InstituteGizaEgypt

The design of nanostructured materials occupies a privileged position in the development and management of affordable and effective technology in the antibacterial ***,we discuss the antimicrobial properties of three carbonaceous nanoblades and nanodarts materials of graphene oxide(GO),reduced graphene oxide(RGO),and single-wall carbon nanotubes(SWCNTs)that have a mechano-bactericidal effect,and the ability to piercing or slicing bacterial *** demonstrate the significance of size,morphology and composition on the antibacterial activity mechanism,the designed nanomaterials have been *** minimum inhibitory concentration(mIC),standard agar well diffusion,and transmission electron microscopy were utilized to evaluate the antibacterial activity of GO,RGO,and *** on the evidence obtained,the three carbonaceous materials exhibit activity against all microbial strains tested by completely encapsulating bacterial cells and causing morphological disruption by degrading the microbial cell membrane in the order of RGO>GO>*** of the external cell wall structure and outer membrane proteins,the synthesized carbonaceous nanomaterials exhibited higher antibacterial activity against Gram-positive bacterial strains than Gram-negative and fungal *** had the lowest mIC values(0.062,0.125,and 0.25 mg/mL against ***,***,and ***,respectively),as well as minimum fungal concentrations(0.5 mg/mL for both *** and ***).At 12 hr,the cell viability values against tested microbial strains were completely *** lysis and death occurred as a result of severe membrane damage caused by microorganisms perched on RGO *** work gives an insight into the design of effective graphene-based antimicrobial materials for water treatment and remediation.

关键词： Antimicrobial properties Nanoblades mechano-bactericidal effect RGO nanosheets Gram-positive bacteria Cell viability

Exome sequencing identifies a likely causative variant in 53%of families with ciliopathy-related features on renal ultrasound after excluding NPHP1 deletions

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Genes & Diseases 2024年第5期11卷 40-43页

作者： Konstantin Deutsch Verena Klambt Thomas m.Kitzler Tilman Jobst-Schwan Ronen Schneider Florian Buerger Steve Seltzsam sherif El Desoky Jameela A.Kari Farkhanda Hafeez maria Szczepanska Loai A.Eid Hazem S.Awad muna Al-Saffar Neveen A.Soliman Velibor Tasic Camille Nicolas-Frank Kirollos Yousef Luca m.Schierbaum Sophia Schneider Abdul Halawi Izzeldin Elmubarak Katharina Lemberg Shirlee Shril Shrikant m.mane Nancy Rodig Friedhelm Hildebrandt Division of Nephrology Department of PediatricsBoston Children’s HospitalHarvard Medical SchoolBostonMA 02215USA Department of Pediatric Gastroenterology Nephrology and Metabolic DiseasesCharite Universitatsmedizin BerlinBerlin 13353Germany Berlin Institute of Health at Charitee Universitatsmedizin Berlin BIH Biomedical Innovation AcademyBIH Charite Clinician Scientist ProgramBerlin 10178Germany Department of Nephrology and Hypertension FriedrichAlexander-Universitat Erlangen-NurnbergErlangen 91054Germany Department of Pediatrics Faculty of Medicine King Abdulaziz UniversityPediatric Nephrology Center of ExcellenceKing Abdulaziz University HospitalJeddah 21589Saudi Arabia Department of Pediatric Nephrology The Children’s Hospital and Institute of Child HealthLahore 54000Pakistan Department of Pediatrics Faculty of Medical Sciences in ZabrzeMedical University of Silesia in KatowiceKatowice 40-752Poland Dubai Hospital and Al-Jalila Children’s Specialty Hospital Kidney Center of ExcellenceDubai 4545United Arab Emirates Department of Genetics and Genomics UAE UniversityAbu Dhabi 15551United Arab Emirates Department of Pediatrics Division of Genetics and GenomicsBoston Children’s HospitalHarvard Medical SchoolBostonMA 02215USA Department of Pediatrics Center of Pediatric Nephrology and TransplantationKasr Al Ainy School of MedicineCairo UniversityCairo 11562Egypt Egypt Center for Research and Regenerative medicine(ECRRm) Cairo 11511Egypt medical Faculty Skopje University Children’s HospitalSkopje 1000North Macedonia Department of Genetics Yale University School of MedicineNew HavenCT 06520USA

Nephronophthisis-related ciliopathies(NPHP-RC)represent one of the most common causes of chronic kidney disease in the first three decades of life and are characterized by a broad genetic and clinical heterogeneity.1 To date,more than 90 genes have been identified that cause autosomalrecessive NPHP-RC if mutated,accounting for up to 60%of cases.1 Among these,homozygous deletions of NPHP1 are the most common *** genes localize to primary cilia,basal bodies,or the centrosome and lead to a primary ciliary disruption if mutated,thereby causing a broad phenotypical spectrum.1 Patients that suffer from NPHP-RC can either have an isolated renal phenotype,such as polyuria,polydipsia,decreased urinary concentration ability,and secondary enuresis due to loss of tubular function,or present with extrarenal symptoms including retinal degeneration,cerebellar vermis hypoplasia,or hepatic *** are often diagnosed in early adolescence,reaching end-stage renal disease before 25 years of age,but early onset and rapidly progressive forms of NPHP-RC also exist.1 Renal ultrasound indicates kidneys of normal or reduced renal length with increased echogenicity and corticomedullary cysts.

关键词： degeneration urinary likely

A focus on parietal cells as a renewing cell population

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World Journal of Gastroenterology 2010年第5期16卷 538-546页

作者： sherif m Karam Department of Anatomy Faculty of Medicine and Health Sciences United Arab Emirates University Al-Ain PO Box 17666 United Arab Emirates

The fact that the acidsecreting parietal cells undergo continuous renewal has been ignored by many gastroenterologists and cell biologists. In the past, it was thought that these cells were static. However, by using 3Hthymidine radioautography in combination with electron microscopy, it was possible to demonstrate that parietal cells belong to a continuously renewing epithelial cell lineage. In the gastric glands, stem cells anchored in the isthmus region are responsible for the production of parietal cells. The stem cells give rise to three main progenitors: prepit, preneck and preparietal cells. Parietal cells develop either directly from the noncycling preparietal cells or less commonly via differentiation of the cycling prepit and preneck cell progenitors. The formation of a parietal cell is a sequential process which involves diminishment of glycocalyx, production of cytoplasmic tubulovesicles, an increase in number and length of microvilli, an increase in number and size of mitochondria, and fi nally, expansion and invagination of the apical membrane with the formation of an intracellular canalicular system. Little is known about the genetic counterparts of these morphological events. However, the time dimension of parietal cell production and the consequences of its alteration on the biological features of the gastric gland are well documented. The production of a new parietal cell takes about 2 d. However, mature parietal cells have a long lifespan during which they migrate bidirectionally while their functional activity for acid secretion gradually diminishes. Following an average lifespan of about 54 d, in mice, old parietal cells undergo degeneration and elimination. Various approaches for genetic alteration of the development of parietal cells have provided evidence in support of their role as governors of the stem/progenitor cell proliferation and differentiation programs. Revealing the dynamic features and the various roles of parietal cells would help

关键词： Cell differentiation Cell dynamics Cell renewal Oxyntic gland Oxyntic mucosa Parietal cell Preparietal cell

Thermal decomposition of ammonium perchlorate catalyzed with CuO nanoparticles

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Defence Technology（防务技术） 2019年第6期15卷 868-874页

作者： sherif Elbasuney m.Yehia Head of Nanotechnology Research Center School of Chemical EngineeringMilitary Technical College

Ammonium perchlorate(APC)is the most common oxidizer in use for solid rocket propulsion *** its initial thermal decomposition is an endothermic process that requires 102.5 J·g^-*** manner involves high activation energy and could render high burning rate *** study reports on the sustainable fabrication of CuO nanoparticles as a novel catalyzing agent for APC *** CuO nanoparticles with consistent product quality were fabricated by using hydrothermal *** micrographs demonstrated mono-dispersed particles of 15 nm particle *** diffractogram demonstrated highly crystalline *** synthesized colloidal CuO particles were effectively coated with APC particles via co-precipitation by using fast-crash solvent-antisolvent *** impact of copper oxide particles on APC thermal behavior has been investigated using DSC and TGA *** demonstrated an initial endothermic decomposition stage at 242℃ with subsequent two exothermic decomposition stages at 297,8℃ and 452.8℃ *** 1 wt%,copper oxide offered decrease in initial endothermic decomposition stage by 30%.The main outcome of this study is that the two main exothermic decomposition peaks were merged into one single peak with an increase in total heat release by 53%.These novel features can inherit copper oxide particles unique catalyzing ability for advanced highly energetic systems.

关键词： Ammonium perchlorate Catalyst Thermal behavior Energetic systems Catalyzed propellants

mathematical analyses of the GPS receiver interference tolerance and mean time to loss lock

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Defence Technology（防务技术） 2019年第3期15卷 440-449页

作者： Ehab m.Shaheen sherif A.Elgamel Electronic Warfare Department Military Technical College

In this paper, novel mathematical expressions are derived for the Global Positioning System (GPS) receiver interference tolerance in the presence of different types of interference signals such as: continuous wave interference, narrowband interference, partial band interference, broadband interference, match spectrum interference and pulse interference. Also, in this paper the mean time to loss lock is determined in order to analyse the mentioned interferences effect on the GPS receiver. These derived analytical expressions are validated with the aid of extensive simulation experiments.

关键词： mathematical analyses GPS receiver interference tolerance

Thermochemical Aspects of Activated Ammonium Perchlorates with Superior Thermal Stability,Decomposition Enthalpy,Propagation Index,and Decomposition Kinetic Parameters

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Journal of Thermal Science 2021年第6期30卷 2196-2201页

作者： sherif Elbasuney m.Yehia SHUKRI Ismael sherif Farag AHmED Saleh GHARIEB S.El-Sayyad Head of Nanotechnology Research Center Military Technical College(MTC)Cairo 11646Egypt School of Chemical Engineering Military Technical College(MTC)Cairo 11646Egypt Science and Technology Center of Excellence Cairo 11646Egypt Drug Radiation Research Department National Center for Radiation Research and Technology(NCRRT)Egyptian Atomic Energy Authority(EAEA)Cairo 11646Egypt

Ammonium perchlorate(AP)includes oxidizing and reducing elements on the same *** can act as an efficient oxidizer and mono-propellant as *** this study,AP experienced crystallographic phase change from orthorhombic centrosymmetric to non-centrosymmetric under controlled isothermal heat *** diffractograms confirmed this crystallographic phase *** thermal behaviour of activated AP had been investigated using *** AP demonstrated high chemical stability with an increase in endothermic phase transition enthalpy by 170%.The enthalpy of the subsequent two main exothermic decomposition reactions was increased by 250%.Whereas AP demonstrated total decomposition enthalpy of 733 J/g,activated AP showed 2614 J/*** AP can secure self-sustained response at a high *** index(combustion enthalpy/ignition temperature)was employed to assess self-sustained reaction *** AP demonstrated high propagation index of 8.7 compared with 2.5 for un-activated *** decomposition kinetic parameters had investigated using Kissinger and KAS *** AP showed an increase in activation energy by 89%using the Kissinger method;kinetic parameters using the KAS method were in good agreement with the Kissinger *** can have concluded that AP with novel kinetic decomposition parameters for enhanced safety storage and high combustion characteristics has evolved.

关键词： solid propellants oxidizers thermal behavior Kinetic parameters activation energy

Current medical therapy of inflammatory bowel disease

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World Journal of Gastroenterology 2000年第4期6卷 483-489页

作者： Kiron m. Das sherif A. Farag Department of medicine Division of Gastroenterology and Hepatologyand Crohn's and Colitis Center of New JerseyUMDNJ Robert Wood Johnson Medical SchoolNew BrunswickNJ 08903USA

INTRODUCTIONThe 1990’s have brought a significant promise and the hopefor a better and brighter future in the new millennium forpatients with inflammatory bowel disease(IBD).A betterunderstanding of the pathophysiolo... 详细信息

关键词： ulcerative colitis Crohn’s disease therapy sulfasalazine 5-aminosalicylic acid glucocorticoids immunosuppresive agents immunomodulatory agents antibiotics nutrition

m2BPGi for assessing liver fibrosis in patients with hepatitis C treated with direct-acting antivirals

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World Journal of Gastroenterology 2020年第21期26卷 2864-2876页

作者： Shereen A Saleh mohamed m Salama marwan m Alhusseini ghada A mohamed Gastroenterology and Hepatology Unit Department of Internal MedicineFaculty of MedicineAin Shams UniversityCairo 11341Egypt

BACKGROUND Assessing liver fibrosis is important for predicting the efficacy of direct-acting antivirals(DAAs)and patient ***-invasive techniques to assess liver fibrosis are becoming ***,serum mac-2 binding protein glycosylation isomer(m2BPGi)was identified as a non-invasive marker of liver *** To investigate the diagnostic accuracy of m2BPGi in assessing liver fibrosis in patients with chronic hepatitis C(CHC)treated with *** From December 2017 to August 2018,80 treatment-naive adult patients with CHC who were eligible for DAAs therapy were consecutively enrolled in this observational cohort *** 12 weeks,65 patients were treated with sofosbuvir/daclatasvir,and 15 patients were treated with sofosbuvir/daclatasvir and a weight-based dose of ribavirin at knowledge and technology association for hepatitis C management clinic,Cairo,*** measured serum m2BPGi levels,PAPAS index,fibrosis-4(FIB-4)score and liver stiffness measurements(LSm)at baseline and 12 weeks after the end of *** m2BPGi levels were measured using enzyme-linked immunosorbent *** All patients achieved sustained virologic response(SVR12)(100%).Serum m2BPGi levels,LSm,FIB-4 score and PAPAS index decreased significantly at SVR12(Pm m2BPGi levels correlated positively with LSm at baseline and SVR12(Pmpared with the FIB-4 score and PAPAS index,m2BPGi was the best marker to distinguish patients with grade F4 fibrosis(AUC=0.801,Pm grade F0-1 fibrosis(AUC=0.713,P=0.012),patients with grade F3-4 from grade F0-2 fibrosis(AUC=0.730,Pm grade F0-1 fibrosis(AUC=0.763,Pm2BPGi had the greatest AUCs for differentiating patients with grade F4 fibrosis(AUC=0.844,Pm grade F0-2 fibrosis(AUC=0.893,P=0.002),patients with grade F3-4 from grade F0-2 fibrosis(AUC=0.891,P<0.001),and patients with grad

关键词： Hepatitis C virus Liver fibrosis Human mac-2 binding protein Antiviral agents Sustained virologic response Elastography