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Experimental design of paraffin/methylated melamine-formaldehyde microencapsulated composite phase change material and the application in battery thermal management system

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Journal of materials Science & Technology 2024年第2期169卷 124-136页

作者： Que Huang Silong Wang Jichun He Dengji Xu Safaa NAbdou mohamed mIbrahim Shiqi Sun Yanjun Chen Handong Li Ben Bin Xu Changcheng Liu Zeinhom m.El-Bahy Zhanhu Guo School of Environment and Safety Engineering North University of ChinaTaiyuan 030051China Institute of Advanced Energy materials and Systems North University of ChinaTaiyuan 030051China School of Resources and Safety Engineering Central South UniversityChangsha 410010China School of medical and BioInformation Engineering Northeastern UniversityShenyang 110819China Department of Chemistry Khurmah University CollegeTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle Upon Tyne NE18STUK College of materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Department of Chemistry Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt

In order to maintain the optimal operating temperature of the battery surface and meet the demand for thermal storage technology,battery thermal management system based on phase change materials has attracted increasing *** this work,a kind of core-shell structured microcapsule was synthesized by an in-situ polymerization,where paraffin was used as the core,while methanol was applied to mod-ify the melamine-formaldehyde shell to reduce toxicity and improve thermal ***,three different types of heat conductive fillers with the same content of 10 wt.%,i.e.,nano-Al_(2)O_(3),nano-ZnO and carbon nanotubes were added,generating *** microcapsules were uniform,and were not affected by the thermal fillers,which were evenly dispersed *** composite sample with carbon nanotubes(10 wt.%)showed the highest thermal conductivity of 0.50 W/(m K)and latent heat of 139.64 J/***,according to the leakage testing and battery charge/discharge experiments,compared with Al_(2)O_(3)and ZnO,the addition of carbon nanotubes remarkably enhances the heat storage ability as latent heat from 126.98 J/g for the prepared sample with Al_(2)O_(3)and 125.86 J/g for the one with ZnO,then to 139.64 J/g,as well as dissipation performance as a cooling effect by decreasing the sur-face temperature of battery from 2%to 12%of microcapsule,composite sample with carbon nanotubes presents a broad application prospect in battery thermal management system and energy storage field.

关键词： microcapsule Phase change material Battery Carbon nanotube Safety

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Human biomonitoring of novel brominated flame retardants:A review on invasive and non-invasive biomarkers

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Emerging Contaminants 2024年第3期10卷 374-385页

作者： Oluwatoyin m.Olagoke Temilola O.Oluseyi Kelechi L.Njoku Stuart Harrad mohamed Abou-Elwafa Abdallah Department of Cell Biology and Genetics Faculty of ScienceUniversity of LagosAkokaLagos101017Nigeria Department of Chemistry Faculty of ScienceUniversity of LagosAkokaLagos101017Nigeria School of Geography Earth and Environmental SciencesUniversity of BirminghamBirminghamB152TTUnited Kingdom

Novel brominated flame retardants(NBFRs)are a group of chemicals applied mainly as alternatives to the phased-out polybrominated diphenyl ethers(PBDEs).However,toxicological studies show that NBFRs may pose health risks similar to *** present study reviews available information on the biomonitoring of NBFRs and their metabolites in humans through invasive and non-invasive biomarkers,as well as the toxicological effects of these chemicals both in vivo and in *** general,higher concentrations of NBFRs were reported in tissues of occupationally exposed adults from NBFR production facilities,e-waste recycling facilities and inhabitants living close to these areas,compared to the general *** is worth noting that NBFR human biomonitoring data are limited to few countries located in North America,Europe and Asia,while data from developing countries are *** from in vivo and in vitro toxicity studies show that several NBFRs can cause adverse health effects through various modes of action,mainly:hormone disruption,genotoxicity,endocrine disruption,and behavioural *** few studies have investigated the biotransformation of NBFRs in humans,evidence suggests that the toxicity of some NBFRs may be augmented through their metabolites,as in the case of 2,3,4,5-tetrabromobenzoic acid(TBBA),which may exhibit higher toxicity than its parent compound 2-ethylhexyl-2,3,4,5-tetrabromobenzoate(EH-TBB).more research is required to assess toxicity thresholds,toxic endpoints,and tolerable intakes for various NBFRs,and their metabolites in *** epidemiological studies are highly recommended to further understand the risk arising from human exposure to different NBFRs,particularly in occupational settings.

关键词： NBFRs Human biomonitoring Human exposure Biomarkers metabolites

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Bi-revealed utilities in a defaultable universe: A new point of view on consumption

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Probability, Uncertainty and Quantitative Risk 2024年第1期9卷 13-34页

作者： Nicole El Karoui Caroline Hillairet mohamed mrad LPSm UMR CNRS 6632Sorbonne Université4 Place Jussieu75005 ParisFrance CREST UMR CNRS 9194Ensae Paris5 Avenue Henry Le Chatelier91120 PalaiseauFrance LAGA UMR CNRS 7539UniversitéSorbonne Paris-Nord99 Avenue Jean Baptiste Clement93430 VilletaneuseFrance

This paper investigates the inverse problem of bi-revealed utilities in a defaultable universe,defined as a standard universe(represented by a filtration F)perturbed by an exogenous defaultable time τ.We assume that the standard universe does not take into account the possibility of the default,thus τ adds an additional source of *** defaultable universe is represented by the filtration G up to time τ(τ included),where G stands for the progressive enlargement of F by *** basic assumption in force is that τ avoids F-stopping *** bi-revealed problem consists in recovering a consistent dynamic utility from the observable characteristic of an *** general results on bi-revealed utilities,first given in a general and abstract framework,are translated in the defaultable G-universe and then are interpreted in the *** decomposition of G-adapted processes X^(G) provides an interpretation of a Gcharacteristic X^(G)_(τ) stopped at τ as a reserve *** to the characterization of G-martingales stopped at τ in terms of F-martingales,we establish a correspondence between G-bi-revealed utilities from characteristic and F-bi-revealed pair of utilities from characteristic and *** a financial framework,characteristic can be interpreted as wealth and reserves as *** result sheds a new light on the consumption in utility criterion:the consumption process can be interpreted as a certain quantity of wealth,or reserves,that are accumulated for the financing of losses at the default time.

关键词： Bi-revealed utilities Defaultable euniverse Enlargement offiltration Preference criteria of wealth and consumption

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Experimental study and numerical modeling of the thermal behavior of an industrial prototype ceramic furnace:Energy and environmental optimization

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Energy and Built Environment 2024年第2期5卷 244-254页

作者： Lahcen BALLI mohamed HLImI Youssef ACHENANI Adil ATIFI Bachir HAmRI Engineering Sciences and Applications Laboratory(LSIA) National School of Applied Sciences(ENSAH)Abdelmalek Essaadi UniversityTetouanMorocco Faculty of Sciences and Techniques Moulay Ismaïl UniversityP.O.Box 509-BoutalamineErrachidiaMorocco Engineering and Health Sciences and Technologies Research Center M2SMENSAMMohammed.V UniversityRabatMorocco Research Team Quality Maintenance Safety QSMMechanical EngineeringDepartment Mohammadia School of EngineersMohammed V UniversityRabatMorocco

This article focuses on the experimental and numerical study of an industrial prototype furnace intended for the production of ceramics in order to improve the energy efficiency and therefore optimize the fuel consumption and the corresponding carbon dioxide *** order to understand the thermal behavior from which stems the energy efficiency of the experimental prototype,we establish in this work,a simplified modeling allowing to establish a mathematical model describing the thermal behavior of the *** model is able to accurately predict the spatial and temporal distribution of the temperature at each point of the furnace to control the firing of the refractory product so that the final product is of good quality in terms of resistance and *** addition,the power consumed by the prototype must be optimized in order to reduce energy and environmental *** particular,this efficient technology has allowed us to save 83% of energy used in the traditional furnace and to reduce 87.36% of the relative carbon dioxide *** simulation of the mathematical model made it possible to compare the numerical results with the experimental measurements obtained by the prototype as well as to validate the model and to adjust the heat transfer parameters.

关键词： Numerical modeling Thermal behavior Ceramic furnace Refractory materials Energy efficiency

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Reservoir quality evaluation of the Narimba Formation in Bass Basin,Australia:Implications from petrophysical analysis,sedimentological features,capillary pressure and wetting fluid saturation

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Energy Geoscience 2024年第1期5卷 37-53页

作者： Wafa Abdul Qader Al-Ojaili mohamed Ragab Shalaby Wilfried Bauer Department of Applied Geosciences German University of Technology in OmanOman Geology Department Faculty of ScienceUniversity of Brunei DarussalamBrunei Darussalam Geology Department Faculty of SciencesTanta UniversityTanta31527Egypt

The evaluation of reservoir quality was accomplished on the Late Paleocene to Early Eocene Narimba Formation in Bass Basin,*** study involved combination methods such as petrophysical analysis,petrography and sedimentological studies,reservoir quality and fluid flow units from derivative parameters,and capillary pressure and wetting fluid saturation *** and diagenetic features are affecting the reservoir ***,compaction,and presence of clay minerals such as kaolinite are found to reduce the quality while dissolution and secondary porosity are noticed to improve *** is believed that the Narimba Formation is a potential reservoir with a wide range of porosity and *** ranges from 3.1%to 25.4%with a mean of 15.84%,while permeability ranges between 0.01 mD and 510 mD,with a mean of 31.05 *** on the heterogenous lithology,the formation has been categorized into five groups based on permeability *** I showed an excellent to good quality reservoir with coarse *** impacts of both textural and diagenetic features improve the reservoir and producing higher reservoir quality index(RQI)and flow zone indicators(FZI)as well as mostly mega *** non-wetting fluid migration has the higher possibility to flow in the formation while displacement pressure recorded as *** II showed a fair quality reservoir with lower petrophysical properties in macro *** irreducible water saturation is increasing while the textural and digenetic properties are still enhancing the reservoir *** III reflects lower quality reservoir with mostly macro pores and higher displacement *** may indicate smaller grain size and increasing amount of cement and clay *** IV,and V are interpreted as a poor-quality reservoir that has lower RQI and *** textural and digenetic features are negatively affecting the reservoir and are leading to smaller pore size and pore throat radii(r35)

关键词： Narimba formation Petrophysics Reservoir quality Capillary pressure Wetting fluid saturation

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The impact of chemotherapy-naïve open radical cystectomy delay and perioperative transfusion on the recurrence-free survival: A perioperative parameters-based nomogram

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Asian Journal of Urology 2024年第2期11卷 294-303页

作者： Ahmed m.Harraz Ahmed Elkarta mohamed H.Zahran Ahmed mosbah Atallah A.Shaaban Hassan Abol-Enein Urology and Nephrology Center Mansoura UniversityEgypt

Objective: To develop and internally validate a nomogram to predict recurrence-free survival (RFS) including the time to radical cystectomy (RC) and perioperative blood transfusion (PBT) as potential ***: Patients who underwent open RC and ileal conduit between January 1996 to December 2016 were split into developing (n=948) and validating (n=237) cohorts. The time to radical cystectomy (TTC) was defined as the interval between the onset of symptoms and RC. The regression coefficients of the independent predictors obtained by Cox regression were used to construct the nomogram. Discrimination, validation, and clinical usefulness in the validation cohort were assessed by the area under the curve, the calibration plot, and decision curve ***: In the developing dataset, the 1-, 5-, and 10-year RFS were 83.0%, 47.2%, and 44.4%, respectively. On multivariate analysis, independent predictors were TTC (hazards ratio [HR] 1.07, 95% confidence interval [CI] 1.05-1.08, pmore units: HR 1.72, 95% CI 1.29-2.29, pmous cell carcinoma (HR 0.60, 95% CI 0.45-0.81, p=0.001), pT3-T4 (HR 1.77, 95% CI 1.41-2.22, pmph node status (HR 1.53, 95% CI 1.21-1.95, pmphovascular invasion (HR 1.28, 95% CI 1.01-1.62, p=0.044). The areas under the curve in the validation dataset were 79.3%, 69.6%, and 76.2%, for 1-, 5-, and 10-year RFS, respectively. Calibration plots showed considerable correspondence between predicted and actual survival probabilities. The decision curve analysis revealed a better net benefit of the ***: A nomogram with good discrimination, validation, and clinical utility was constructed utilizing TTC and PBT in addition to standard pathological criteria.

关键词： Radicalcystectomy Blood transfusion Time to radical cystectomy Survival Nomogram

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Gastroesophageal reflux after per-oral endoscopic myotomy:management literature

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World Journal of Gastroenterology 2024年第23期30卷 2947-2953页

作者： Ahmed Tawheed Ibrahim Halil Bahcecioglu mehmet Yalniz mohamed El-Kassas Department of Endemic medicine Faculty of MedicineHelwan UniversityCairo 11795Egypt Department of Gastroenterology Faculty of MedicineFirat UniversityElazig 23119Türkiye Liver Disease Research Center College of MedicineKing Saud UniversityRiyadh 7805Saudi Arabia

In this editorial,we respond to a review article by Nabi et al,in which the authors discussed gastroesophageal reflux(GER)following peroral endoscopic myotomy(POEm).POEm is presently the primary therapeutic option for achalasia,which is both safe and effective.A few adverse effects were documented after POEm,including *** diagnostic criteria were not clear enough because approximately 60%of patients have a long acid exposure time,while only 10%experience reflux *** predictors of high disease incidence have been identified,including old age,female sex,obesity,and a baseline lower esophageal sphincter pressure of less than 45 *** technical steps during the procedure,such as a lengthy or full-thickness myotomy,may further enhance the *** pump inhibitors are currently the first line of *** voices are increasingly advocating for the routine combining of POEm with an endoscopic fundoplication method,such as peroral endoscopic fundoplication or transoral incisionless ***,more research is necessary to determine the safety and effectiveness of these procedures in the long term for patients who have undergone them.

关键词： Achalasia Per-oral endoscopic myotomy Gastroesophageal reflux disease Transoral incisionless fundoplication Peroral endoscopic fundoplication

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microbial,immune and antioxidant responses of Nile tilapia with dietary nano-curcumin supplements under chronic low temperatures

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Aquaculture and Fisheries 2024年第1期9卷 57-65页

作者： mohammed F.El Basuini mohamed A.A.Zaki Abdelaziz m.El-Hais mohamed G.Elhanafy Emad H.El-Bilawy Amr I.Zaineldin mohamed F.A.Abdel-Aziz Ibrahim A.Abouelsaad Ibrahim TEl-Ratel Kumbukani mzengereza Ronick S.Shadrack Islam I.Teiba Faculty of Agriculture Tanta UniversityTanta31527Egypt King Salman International University South Sinai46618Egypt Faculty of Agriculture Alexandria UniversityAlexandria21526Egypt Animal Health Research Institute(AHRI-DOKI) Agriculture Research CenterGiza12619Egypt Fish Rearing Lab. Aquaculture DivisionNational Institute of Oceanography and FisheriesAlexandria21556Egypt Horticulture Department Faculty of AgricultureDamanhour UniversityDamanhur22511Egypt Department of Poultry Production Faculty of AgricultureDamietta UniversityDamietta34517Egypt Laboratory of Aquatic Animal Nutrition Faculty of FisheriesKagoshima UniversityKagoshima890-0065Japan Department of Aquatic and Fisheries Science Mzuzu UniversityMzuzuPrivate Bag 201Malawi Faculty of Aquaculture and marine Fisheries Arish UniversityArish45516Egypt

A 56-day feeding period was performed to investigate the possible impacts of dietary nano curcumin(0,50,100,150,and 200 ppm)on the growth,nutrient utilization,non-specific immune parameters,antioxidants in Nile tilapia under chronic low temperature(21.02±0.11◦C).Fishes(n=225;Initial weight=4.39±0.08 g/fish)were randomly stocked at 15 fish/tank for five experimental groups in *** low-temperature circumstances,dietary curcumin in nano form showed no notable alteration in growth variable,nutrient efficiency,digestive enzymes efficiency,biometric indices,survival rates,and hematological ***,the serum of fishes with nano curcumin diets under low-temperature stress displayed higher total protein as well as lower glucose,cortisol,and total cholesterol compared with the control ***,fish fed nano curcumin diets displayed higher lysozyme and bactericidal activities compared to the control group and the best performance was found at dietary nano curcumin level of≥100 ***,groups fed the basal diet demonstrated the poorest antioxidant capacity,and the best superoxide dismutase(SOD)and glutathione peroxidase(GPx)existed in fish with nano curcumin diets while the best catalase(CAT)efficiency occurred at higher nano curcumin levels≥100 *** addition,higher counts of intestinal microbiota in terms of total bacterial count(TBC),total yeast and molds count(TYmC),and coliform were noticed in fish consumed the basal diet compared to groups fed on nano curcumin *** conclusion,incorporating nano curcumin at a level of≥100 mg/kg diet(particularly at 150 mg/kg)improved a non-specific immune response,antioxidant,and healthier gastrointestinal microbiota in Nile tilapia under chronic low-temperature stress.

关键词： Nano curcumin Gastrointestinal microbiota Antioxidants Non-specific immune responses Temperature stress

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Evaluating the influence of a structured nursing protocol on targeted outcomes in rheumatoid arthritis patients

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Journal of Integrative Nursing 2024年第1期6卷 22-28页

作者： mohammed Elsayed ZAKY Shimaa magdi FARGHALY Osama mohamed Elsayed RAmADAN Rehab m.ABDELKADER mostafa SHABAN Department of medical Surgical Nursing Faculty of Nursing Cairo UniversityCairoEgypt Department of medical Surgical Nursing College of NursingJouf UniversitySakakaAljawfSaudi Arabia Faculty of Nursing Cairo University CairoEgypt Department of Geriatric Nursing Faculty of Nursing Cairo UniversityCairoEgypt

Objective:Rheumatoid arthritis(RA)requires comprehensive *** nursing protocols may enhance outcomes,but evidence is *** study evaluated the effect of a structured nursing protocol on RA *** and methods:In this one-group pre-post study,30 Egyptian RA patients completed assessments before and after a 12-week nursing protocol comprising education,psychosocial support,and self-management *** included clinical evaluation of joint counts,erythrocyte sedimentation rate(ESR),and C-reactive protein(CRP)and patient-reported Arthritis Self-Efficacy Scale(ASES),Health Assessment Questionnaire(HAQ),Visual Analog Scale(VAS)for pain,and Hospital Anxiety and Depression Scale(HADS).Results:The study demonstrated significant improvements in both clinical-and patient-reported *** count decreased from 18.4±4.2 to 14.2±3.8(Pm 30.1±6.8 mm/h to 25.5±6.8 mm/h(Pm 15.2±3.6 mg/L to 11.8±2.9 mg/L(Pmes showed a marked increase in ASES score from 140±25 to 170±30(Pm 1.6±0.4 to 1.3±0.3(Pm 7.8±1.7 to 6.2±1.2(Pm 11±3 to 8±2(Pmproved clinical disease activity,physical functioning,pain,self-efficacy,and emotional well-being in RA patients.A multifaceted nursing intervention appears beneficial for optimizing RA outcomes.

关键词： Nursing care patient education quality of life rheumatoid arthritis self‑management

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Responses of Inter Annual Variability of Vegetation NPP to Climate Variables using Satellite Techniques in Eastern Sudan

Responses of Inter Annual Variability of Vegetation NPP to C...

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作者： ANWAR mohamedELHASSAN TAJALmOLA mohamed 西北师范大学

学位级别：硕士

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