Search Results - "Kareem, Ahmed"

Flame–turbulence interaction of laminar premixed deflagrated flames by McGarry, Joseph P., Ahmed, Kareem A.

“…The demand for higher combustion efficiency and performance is attainable through pressure gain combustion. Pressure gain combustion exploits the pressure rise…”
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Stabilized detonation for hypersonic propulsion by Rosato, Daniel A., Thornton, Mason, Sosa, Jonathan, Bachman, Christian, Goodwin, Gabriel B., Ahmed, Kareem A.

“…Future terrestrial and interplanetary travel will require high-speed flight and reentry in planetary atmospheres by way of robust, controllable means. This, in…”
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Experimental and theoretical analysis of carbon driven detonation waves in a heterogeneously premixed Rotating Detonation Engine by Dunn, Ian B., Malik, Vidhan, Flores, Wilmer, Morales, Anthony, Ahmed, Kareem A.

“…•Demonstrated multiphase rotating detonation waves with carbon particles in a Rotating Detonation Engine.•Evidence of carbon driven rotating waves are…”
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Pressure-gradient tailoring effects on the turbulent flame-vortex dynamics of bluff-body premixed flames by Geikie, Marissa K., Ahmed, Kareem A.

“…This paper explores the effects of pressure-gradient tailoring on the turbulent flame and vorticity generation mechanisms of premixed flames. A turbulent…”
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Prediction Performance of Deep Learning for Colon Cancer Survival Prediction on SEER Data by Gupta, Surbhi, Kalaivani, S., Rajasundaram, Archana, Ameta, Gaurav Kumar, Oleiwi, Ahmed Kareem, Dugbakie, Betty Nokobi

“…Colon and rectal cancers are the most common kinds of cancer globally. Colon cancer is more prevalent in men than in women. Early detection increases the…”
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Hydrazinosulfonylation of aryl electrophiles: a straightforward approach for the synthesis of aryl N -aminosulfonamides by Hsu, Chou-Yi, Obaid Aldulaimi, Ahmed Kareem, Humam Sami, Mustafa, Bahir, Hala, Adhab, Ayat Hussein, Saraswat, Shelesh Krishna

“…In recent years, the direct hydrazinosulfonylation of aryl electrophiles with SO and hydrazines has emerged as an efficient and versatile method for the…”
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Lagrangian mechanisms of flame extinction for lean turbulent premixed flames by Geikie, Marissa K., Ahmed, Kareem A.

“…Flame extinction is a critical impediment invariably limiting the performance of modern turbulent combustion technology. Combustion systems operating at lean…”
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Turbulent flame-vortex dynamics of bluff-body premixed flames by Geikie, Marissa K., Rising, Cal J., Morales, Anthony J., Ahmed, Kareem A.

“…To better understand the coupled dynamics of turbulence and premixed flames, this study experimentally investigates the effects of turbulence on reacting…”
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Synthesis and Boosting the Morphological, Structural and Optical Features of PEO/Si3N4/CeO2 Promising Nanocomposites Films for Futuristic Nanoelectronics Applications by Kareem, Ahmed, Hashim, Ahmed, Hassan, Huda Bukheet

“…The hybrid nanomaterials doped organic polymer can be considered as a promising nanosystems to apply in various optical and electronics fields. In present…”
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An Investigation of Wellbore Instability in Problematic Formations from Eridu Oil Field, Southern Iraq by Kareem, Ahmed, Almahdawi, Faleh

“…Wellbore instability is a main challenge and contribute to suspending the drilling operations that lead to over-well time, known as Non-productive time (NPT)…”
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A novel and efficient magnetically recoverable copper catalyst [MNPs-guanidine-bis(ethanol)-Cu] for Pd-free Sonogashira coupling reaction by Patra, Indrajit, H. Mohammed, Faris, Obaid Aldulaimi, Ahmed Kareem, Abbas khudhair, Dunia, Fakri Mustafa, Yasser

“…We designed and fabricated a copper complex immobilized on the surface of silica-coated magnetic nanoparticles modified with guanidine-bis ethanol (prepared…”
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Experimental evidence of H2/O2 propellants powered rotating detonation waves by Sosa, Jonathan, Burke, Robert, Ahmed, Kareem A., Micka, Daniel J., Bennewitz, John W., Danczyk, Stephen A., Paulson, Eric J., Hargus, William A.

“…The paper presents experimental evidence of continuous detonation in a rotating detonation rocket engine (RDRE) powered by H2/O2 propellants. High-speed…”
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The evolution of pressure gain in turbulent fast flames by Chin, Hardeo M., Chambers, Jessica, Sosa, Jonathan, Poludnenko, Alexei, Gamezo, Vadim N., Ahmed, Kareem A.

“…This research quantifies the evolution of pressure for fast burning regimes characterized by various degrees of compressibility and involving turbulent flames…”
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Mechanisms of flame extinction and lean blowout of bluff body stabilized flames by Morales, Anthony J., Lasky, Ian M., Geikie, Marissa K., Engelmann, Christian A., Ahmed, Kareem A.

“…Lean flame blowout is investigated experimentally within a high-speed combustor to analyze the temporal extinction dynamics of turbulent premixed bluff body…”
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Pressure gradient tailoring effects on the mechanisms of bluff-body flame extinction by Morales, Anthony J., Reyes, Jonathan, Joo, Peter H., Boxx, Isaac, Ahmed, Kareem A.

“…The mechanisms of flame blowout under pressure gradient effects are explored for a bluff-body stabilized flame. The blowout process is induced through…”
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Four-Line C2/CH Optical Sensor for Chemiluminescence Based Imaging of Flame Stoichiometry by Tonarely, Michael E., Genova, Tommy, Morales, Anthony J., Micka, Daniel, Knaus, Darin, Ahmed, Kareem A.

“…In the present work, an optical sensor was developed and calibrated for the purpose of non-intrusive equivalence ratio measurements in combustion systems. The…”
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Classification and Detection of Mesothelioma Cancer Using Feature Selection-Enabled Machine Learning Technique by Shobana, M., Balasraswathi, V. R., Radhika, R., Oleiwi, Ahmed Kareem, Chaudhury, Sushovan, Ladkat, Ajay S., Naved, Mohd, Rahmani, Abdul Wahab

“…Cancer of the mesothelium, sometimes referred to as malignant mesothelioma (MM), is an extremely uncommon form of the illness that almost always results in…”
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Impact of acute short-term high thermal stress during early embryogenesis on hatchability, physiological body reaction, and ovarian follicles development of quails by Abdel-Kareem Abuoghaba, Ahmed, Ali, Fatma, Ismail, Inas Ibrahim, Saleh, Mohamed

“…This experiment aimed to evaluate the impact of continuous and intermittent thermal stress during early embryogenesis on hatchability, physiological body…”
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On the Flame-generated Vorticity Dynamics of Bluff-body-stabilized Premixed Flames by Geikie, Marissa K., Carr, Zakery R., A. Ahmed, Kareem, Forliti, David J.

“…This investigation considers the dynamics of flame-generated vorticity for a premixed, submerged bluff-body stabilized flame. Experimentation characterizes the…”
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Perceived COVID-19 vaccine effectiveness, acceptance, and drivers of vaccination decision-making among the general adult population: A global survey of 20 countries by Marzo, Roy Rillera, Ahmad, Absar, Islam, Md Saiful, Essar, Mohammad Yasir, Heidler, Petra, King, Isabel, Thiyagarajan, Arulmani, Jermsittiparsert, Kittisak, Songwathana, Karnjana, Younus, Delan Ameen, El-Abasiri, Radwa Abdullah, Bicer, Burcu Kucuk, Pham, Nhat Tan, Respati, Titik, Fitriyana, Susan, Faller, Erwin Martinez, Baldonado, Aries Moralidad, Billah, Md Arif, Aung, Yadanar, Hassan, Shehu Muhammad, Asad, Muhammad Mujtaba, El-Fass, Kareem Ahmed, Bhattacharya, Sudip, Shrestha, Sunil, Hamza, Nouran Ameen Elsayed, Friedmann, Pascal, Head, Michael, Lin, Yulan, Yi, Siyan

“…Mass vaccination campaigns have significantly reduced the COVID-19 burden. However, vaccine hesitancy has posed significant global concerns. The purpose of…”
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