Search Results - "Sayed, Sayed Ahmed"

Flow and heat transfer enhancement in tube heat exchangers by Sayed Ahmed, Sayed Ahmed E., Mesalhy, Osama M., Abdelatief, Mohamed A.

“…The performance of heat exchangers can be improved to perform a certain heat-transfer duty by heat transfer enhancement techniques. Enhancement techniques can…”
Get full text

Heat transfer characteristics and entropy generation for wing-shaped-tubes with longitudinal external fins in cross-flow by Sayed Ahmed, Sayed Ahmed E., Mesalhy, Osama M., Abdelatief, Mohamed A.

“…A numerical study is conducted to clarify heat transfer characteristics, effectiveness and entropy generation for a bundle of wingshaped-tubes attached to…”
Get full text

Heat transfer performance evaluation in circular tubes via internal repeated ribs with entropy and exergy analysis by Sayed Ahmed, Sayed Ahmed E., Ibrahim, Emad Z., Ibrahim, Mostafa M., Essa, Mohamed A., Abdelatief, Mohamed A., El-Sayed, Mohamed N.

“…•Performance evaluation of various internal repeated ribs was examined.•The effect of changing ribs shape, depth and pitch were considered.•A new correlation…”
Get full text

Experimental and numerical study on thermal-hydraulic performance of wing-shaped-tubes-bundle equipped with winglet vortex generators by Abdelatief, Mohamed A., Sayed Ahmed, Sayed Ahmed E., Mesalhy, Osama M.

“…The present work evaluates, experimentally and numerically, by the aid of commercial code FLUENT 6.3.26, the effects of relative locations (∆X or ∆Y), heights…”
Get full text

Thermal performance augmentation of a semi-circular cylinder in crossflow using longitudinal fins by Afifi, Ahmed, Ibrahim, Emad Z., Sayed Ahmed, Sayed Ahmed E., Elwan, Wael M., Elsayed, Mohamed L., Abdelatief, Mohamed A.

“…In the present work, the thermal/hydraulic characteristics of a semi-circular cylinder in crossflow of air have been numerically investigated at Reynolds…”
Get full text

Resilient operational strategies for power systems considering the interactions with natural gas systems by Sayed, Ahmed R., Wang, Cheng, Bi, Tianshu

“…•The physical and economic interactions between power and natural gas systems during power system contingency are considered.•A tri-level…”
Get full text

Heat transfer characteristics of staggered wing-shaped tubes bundle at different angles of attack by Sayed Ahmed, Sayed Ahmed E., Ibrahiem, Emad Z., Mesalhy, Osama M., Abdelatief, Mohamed A.

“…An experimental and numerical study has been conducted to clarify heat transfer characteristics and effectiveness of a cross-flow heat exchanger employing…”
Get full text

Colistin and its role in the Era of antibiotic resistance: an extended review (2000-2019) by El-Sayed Ahmed, Mohamed Abd El-Gawad, Zhong, Lan-Lan, Shen, Cong, Yang, Yongqiang, Doi, Yohei, Tian, Guo-Bao

“…Increasing antibiotic resistance in multidrug-resistant (MDR) Gram-negative bacteria (MDR-GNB) presents significant health problems worldwide, since the vital…”
Get full text

Computational Valuation of Darcy Ternary-Hybrid Nanofluid Flow across an Extending Cylinder with Induction Effects by Alharbi, Khalid Abdulkhaliq M, Ahmed, Ahmed El-Sayed, Ould Sidi, Maawiya, Ahammad, Nandalur Ameer, Mohamed, Abdullah, El-Shorbagy, Mohammed A, Bilal, Muhammad, Marzouki, Riadh

“…The flow of an electroconductive incompressible ternary hybrid nanofluid with heat conduction in a boundary layer including metallic nanoparticles (NPs) over…”
Get full text

Upgrading Common Wheat Pasta by Fiber-Rich Fraction of Potato Peel Byproduct at Different Particle Sizes: Effects on Physicochemical, Thermal, and Sensory Properties by Namir, Mohammad, Iskander, Ali, Alyamani, Amal, Sayed-Ahmed, Eman T Abou, Saad, Ahmed M, Elsahy, Kamal, El-Tarabily, Khaled A, Conte-Junior, Carlos Adam

“…Fiber-enriched food has numerous health benefits. This study develops functional fiber-enriched pasta (FEP) by partially substituting wheat flour for…”
Get full text

Numerical study using FE simulation on rectangular RC beams with vertical circular web openings in the shear zones by Sayed, Ahmed M.

“…•The FE modeling can be used to calculate the shear capacity of RC beams.•The FE modeling can be used to predict the failure modes of RC beams.•By increasing…”
Get full text

Whole genome sequencing of Klebsiella pneumoniae clinical isolates sequence type 627 isolated from Egyptian patients by Enany, Shymaa, Zakeer, Samira, Diab, Aya A, Bakry, Usama, Sayed, Ahmed A

“…Klebsiella pneumoniae is considered a threat to public health especially due to multidrug resistance emergence. It is largely oligoclonal based on multi-locus…”
Get full text

Does bancassurance influence the financial performance of the insurance industry? A case study of life insurance company in a developing country by Ghoniem, Yasmin Ahmed Sayed Ahmed

“…Purpose This study aims to examine the impacts of bancassurance contracts on the financial performance of the Egyptian insurance market from 2011 to 2022…”
Get full text

Joule–Thomson expansion and images of black hole in SU(N)-non-linear sigma model by Malik, Adnan, Chaudhary, Shahid, Metwally, Ahmed Sayed M.

“…We consider recently constructed black holes in the Einstein SU(N)-non-linear sigma model and study the Joule–Thomson expansion and observable characteristics…”
Get full text

Electrode pattern definition in ultrasound power transfer systems by Sayed Ahmed, Moustafa, Shahab, Shima

“…We use a high pattern-fidelity technique on piezoelectric electrodes to selectively excite high-order vibration modes, while isolating other modes, in…”
Get full text

Short-term photovoltaic energy generation for solar powered high efficiency irrigation systems using LSTM with Spatio-temporal attention mechanism by Awais, Muhammad, Mahum, Rabbia, Zhang, Hao, Zhang, Wei, M. Metwally, Ahmed Sayed, Hu, Jiandong, Arshad, Ifzan

“…Solar irrigation systems should become more practical and efficient as technology advances. Automation and AI-based technologies can optimize solar energy use…”
Get full text

Note on a difference equation and some of its relatives by Stević, Stevo, Ahmed, Ahmed El‐Sayed, Kosmala, Witold, Šmarda, Zdeněk

“…We prove an interesting result on convergence of positive solutions to a nonlinear second‐order difference equation of interest to some two‐periodic solutions…”
Get full text

Diatomite supported by CaO/MgO nanocomposite as heterogeneous catalyst for biodiesel production from waste cooking oil by Rabie, Abdelrahman M., Shaban, Mohamed, Abukhadra, Mostafa R., Hosny, Rania, Ahmed, Sayed A., Negm, Nabel A.

“…Production of renewable, biodegradable, and non-toxic biodiesel by recycling waste cooking oil offers a profitable way to reduce the raw materials of waste…”
Get full text

S1811 Risk Factors of Prolonged Bowel Dysfunction After Hyperthermic Intraperitoneal Chemotherapy and Cytoreductive Surgery for the Treatment of Metastatic Tumors of the Abdomen and Pelvis by Naz, Sidra, Ahmed, Ahmed Sayed, Dai, Jianliang, Lee, Irene, Helmink, Beth, Shafi, Mehnaz A.

“…Predictors with P-values < 0.1 and sufficient data points were further analyzed by univariate and multivariate logistic regression analysis. Conclusion: This…”
Get full text

Mathematical model for the novel coronavirus (2019‐nCOV) with clinical data using fractional operator by El‐Sayed, Ahmed M. A., Arafa, Anas, Hagag, Ahmed

“…Coronavirus infection (COVID‐19) is a considerably dangerous disease with a high demise rate around the world. There is no known vaccination or medicine until…”
Get full text