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Comparative Metabolite Profiling Of Four Citrus Peel Cultivars Via Ultra-Performance Liquid Chromatography Coupled With Quadrupole-Time-Of-Flight-Mass Spectrometry And Multivariate Data Analyses, Mohamed Ali Farag
Faculty Journal Articles
Citrus plants are one of the most economical fruit bearing trees grown worldwide for their medicinal use as well as for the flavor and food industry. This study attempts to characterize the metabolome difference in polyphenols of four Citrus species fruit peels; C. reticulata Blanco cv. Egyptian, C. sinensis (L.) Osbeck cv. Olinda Valencia, C. aurantiifolia Swingle cv. Mexican and C. paradisi Macfad. cv. Duncan via ultra-performance liquid chromatography coupled with quadrupole-time-of-flight-mass spectrometry platform. A total of 163 metabolites were characterized of which 28 were detected for the first time in Citrus cultivars including eight coumarin derivatives, three cinnamic acids …
Facile Microwave-Assisted Synthetic Approach To Palladium Nanoparticles Supported On Copper Oxide As An Efficient Catalyst For Heck And Sonogashira Cross- Coupling Reactions, Tamer Tawhid El-Idreesy
Facile Microwave-Assisted Synthetic Approach To Palladium Nanoparticles Supported On Copper Oxide As An Efficient Catalyst For Heck And Sonogashira Cross- Coupling Reactions, Tamer Tawhid El-Idreesy
Faculty Journal Articles
A simple green one-step method for the synthesis of highly active palladium nanoparticles embedded on copper oxide as an efficient catalyst for ligand-free Heck and Sonogashira cross-coupling reactions has been developed. The synthetic approach is based on Microwave (MW)-assisted simultaneous chemical reduction of an aqueous solution of palladium and copper salts using hydrazine hydrate as the reducing agent. Selected characterization of the catalyst with transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction spectroscopy (XRD) reveal a size range of 25±2nm for the generated catalyst nanoparticles with the highest catalytic activity. The use of the generated Pd/CuO nanoparticles …
Correlating Field To Laboratory Compaction For Roller Compacted Concrete, Mohamed Nagib Abou Zeid, Mohamed El-Saied, Kamel Elamrousy, Ahmed Hamed, Elmohanad Elsayad
Correlating Field To Laboratory Compaction For Roller Compacted Concrete, Mohamed Nagib Abou Zeid, Mohamed El-Saied, Kamel Elamrousy, Ahmed Hamed, Elmohanad Elsayad
Faculty Journal Articles
No abstract provided.
Managing Organizational Paradoxes In Social Enterprises: Case Studies From The Mena Region, Ayman Adel Abdel Fattah Ismail, Brendon Johnson
Managing Organizational Paradoxes In Social Enterprises: Case Studies From The Mena Region, Ayman Adel Abdel Fattah Ismail, Brendon Johnson
Faculty Journal Articles
This study aims to examine the question around how small- and medium-scale hybrid social enterprises within the context of the Middle East and North Africa manage paradoxical tensions they face in their everyday decision-making. By placing a lens on the unique hybrid processes facing organizational members rooted in traditional social and economic rationales, we seek to better understand the breadth of strategies adopted and their relevance to the specific contextual considerations of the study. Through analyzing five in-depth case studies from the region, the study aims to add insights on the practice of managing organizational paradoxes to maintain social-economic hybridity. …
Exploring The Use Of Nearpod In Undergraduate Financial Accounting Classes, Nermeen Fathy Ahmed Shehata, Caroline Mitry, Maha Shawki
Exploring The Use Of Nearpod In Undergraduate Financial Accounting Classes, Nermeen Fathy Ahmed Shehata, Caroline Mitry, Maha Shawki
Faculty Journal Articles
No abstract provided.
Comparative Metabolome-Based Classification Of Senna Drugs: A Prospect For Phyto-Equivalency Of Its Different Commercial Products, Mohamed Ali Farag
Comparative Metabolome-Based Classification Of Senna Drugs: A Prospect For Phyto-Equivalency Of Its Different Commercial Products, Mohamed Ali Farag
Faculty Journal Articles
The demand to develop efficient and reliable analytical methods for the quality control of nutraceuticals is on the rise, together with an increase in the legal requirements for safe and consistent levels of its active principles. Objective: To establish a reliable model for the quality control of widely used Senna preparations used as laxatives and assess its phyto-equivalency. Methods: A comparative metabolomics approach via NMR and MS analyses was employed for the comprehensive measurement of metabolites and analyzed using chemometrics. Results: Under optimized conditions, 30 metabolites were simultaneously identified and quantified including anthraquinones, bianthrones, acetophenones, flavonoid conjugates, naphthalenes, phenolics, and …
Computational Design Of Novel Hydrogen-Doped, Oxygen-Deficient Monoclinic Zirconia With Excellent Optical Absorption And Electronic Properties, Sarah A. Tolba, Nageh Khalaf Allam
Computational Design Of Novel Hydrogen-Doped, Oxygen-Deficient Monoclinic Zirconia With Excellent Optical Absorption And Electronic Properties, Sarah A. Tolba, Nageh Khalaf Allam
Faculty Journal Articles
Monoclinic ZrO2 has recently emerged as a new highly efficient material for the photovoltaic and photocatalytic applications. Herein, first-principles calculations were carried out to understand how Hydrogen doping can affect the electronic structure and optical properties of the material. The effects of Hydrogen interstitial and substitutional doping at different sites and concentrations in m-ZrO2 were examined by an extensive model study to predict the best structure with the optimal properties for use in solar energy conversion devices. Hydrogen interstitials (Hi) in pristine m-ZrO2 were found to lower the formation energy but without useful effects on the electronic or optical properties. …
Correlation Between Microstructural Defects And Photoelectrochemical Performance Of 1d Ti--Nb Composite Oxide Photoanodes For Solar Water Splitting, Nageh Khalaf Allam, Mahmoud Farag, Aya A. Saleh
Correlation Between Microstructural Defects And Photoelectrochemical Performance Of 1d Ti--Nb Composite Oxide Photoanodes For Solar Water Splitting, Nageh Khalaf Allam, Mahmoud Farag, Aya A. Saleh
Faculty Journal Articles
We report on the optimized fabrication of ultrathin wall nanotubes grown on Ti–Nb alloy via anodization in organic-based electrolytes. The nanotubes are vertically aligned with wall thicknesses of 5–8 nm, diameters of 180–200 nm, and lengths of 2–2.8 μm. Raman spectroscopy and glancing angle x-ray diffraction (GAXRD) measurements indicated the formation of composite oxides of anatase TiO2 and monoclinic Nb2O5. The composite oxides showed better stability at elevated temperatures up to 650 ᵒC and with much smaller induced microstrain compared to the TiO2 counterpart. X-ray photoelectron spectroscopy (XPS) analysis confirmed the composition of the fabricated nanotubes as a mixed TiO2–Nb2O5 …
Crosslinking Of Polyamides Using Dianhydrides, Diacid Chloride And Dialdehyde: A Promising Approach For Water Treatment, Sonia Zulfiqar
Crosslinking Of Polyamides Using Dianhydrides, Diacid Chloride And Dialdehyde: A Promising Approach For Water Treatment, Sonia Zulfiqar
Faculty Journal Articles
New crosslinked polyamides were successfully produced from the condensation of pre-synthesized monomer, 5-(2,2,2-trifluoroacetamido)isophthaloylchloride (TFAIAC) and diamines at low temperature. These polyamides were used as promising metal-chelating adsorbents due to the presence of O and N donor sites on the crosslinked polyamides. For this purpose, trifluoroacetic anhydride was used to protect the amino group of 5-aminoisophthalic acid, thus generating 5-(2,2,2-trifluoroacetamido)isophthalic acid (TFAIA). TFAIA was converted into TFAIAC using oxalyl chloride, which was exploited as a suitable monomer for the synthesis of aromatic polyamides. Amino groups were then set free under basic conditions and the crosslinking was carried out through amino groups …
Isolation Of Anticancer And Anti-Trypanosome Secondary Metabolites From The Endophytic Fungus Aspergillus Flocculus Via Bioactivity Guided Isolation And Ms Based Metabolomics, Mohamed Ali Farag
Faculty Journal Articles
This study aims to identify bioactive anticancer and anti-trypanosome secondary metabolites from the fermentation culture of Aspergillus flocculus endophyte assisted by modern metabolomics technologies. The endophyte was isolated from the stem of the medicinal plant Markhamia platycalyx and identified using phylogenetics. Principle component analysis was employed to screen for the optimum growth endophyte culturing conditions and revealing that the 30-days rice culture (RC-30d) provided the highest levels of the bioactive agents. To pinpoint for active chemicals in endophyte crude extracts and successive fractions, a new application of molecular interaction network is implemented to correlate the chemical and biological profiles of …
Low-Temperature Thermoelectric Performance Of Novel Polyaniline/Iron Oxide Composites With Superior Seebeck Coefficient, Hussein Badr, Nageh Khalaf Allam
Low-Temperature Thermoelectric Performance Of Novel Polyaniline/Iron Oxide Composites With Superior Seebeck Coefficient, Hussein Badr, Nageh Khalaf Allam
Faculty Journal Articles
The large amount of heat loss at low temperatures (up to 250 °C), more than 70% of the total waste heat, motivates the market to develop new materials for low-temperature thermoelectric applications. To this end, organic materials can be excellent potential candidates with the additional advantages of light weight, ease of synthesis and processing, eco-friendly and being sustainable materials. Herein, we demonstrate the synthesis of polyaniline (PANI) in its conductive emeraldine form via a facile chemical oxidative polymerization process. The conductivity of the fabricated PANI, with exceptional low degree of protonation and additional structure deflection, originates from the excess Cl− …
Marine Natural Products: A Source Of Novel Anticancer Drugs, Mohamed Ali Farag
Marine Natural Products: A Source Of Novel Anticancer Drugs, Mohamed Ali Farag
Faculty Journal Articles
Cancer remains one of the most lethal diseases worldwide. There is an urgent need for new drugs with novel modes of action and thus considerable research has been conducted for new anticancer drugs from natural sources, especially plants, microbes and marine organisms. Marine populations represent reservoirs of novel bioactive metabolites with diverse groups of chemical structures. This review highlights the impact of marine organisms, with particular emphasis on marine plants, algae, bacteria, actinomycetes, fungi, sponges and soft corals. Anti-cancer effects of marine natural products in in vitro and in vivo studies were first introduced; their activity in the prevention of …
Measurement Of Away-Side Broadening With Self-Subtraction Of Flow In Au+Au Collisions At √Snn = 200 Gev, Ahmad Hamed
Measurement Of Away-Side Broadening With Self-Subtraction Of Flow In Au+Au Collisions At √Snn = 200 Gev, Ahmad Hamed
Faculty Journal Articles
High transverse momentum (PT) particle production is suppressed owing to the parton (jet) energy loss in the hot dense medium created in relativistic heavy-ion collisions. Redistribution of energy at low-to-modest PT has been difficult to measure, owing to large anisotropic backgrounds. We report a data-driven method for background evaluation and subtraction, exploiting the away-side pseudorapidity gaps, to measure the jetlike correlation shape in Au+Au collisions at √SNN = 200 GeV in the STAR experiment. The correlation shapes, for trigger particles and various associated particle PT ranges within, are consistent with Gaussians, and their widths increase with centrality. The results indicate …
Design Considerations Of Highly Efficient D-Shaped Plasmonic Biosensor, Mohamed Swillam
Design Considerations Of Highly Efficient D-Shaped Plasmonic Biosensor, Mohamed Swillam
Faculty Journal Articles
Design considerations of photonic crystal fiber (PCF) surface plasmon biosensor with high sensitivity to monitor glucose concentration is reported and studied. Based on a well-known large mode area (LMA) single mode PCF, two different configurations have been studied to investigate the impact of the etching process on the biosensor sensitivity. Furthermore, the possibility of infiltrating one hole by a plasmonic material to increases the biosensor sensitivity is studied. A full vectorial finite element method (FVFEM) is used to carry out the analysis of the reported biosensor. In addition, the geometrical parameters of the suggested biosensors have been optimized to obtain …
Eco-Friendly, One-Step Synthesis Of Cobalt Sulfide-Decorated Functionalized Graphene For High-Performance Supercapacitors, Dalia M. El-Gendy, Israa M. Afifi, Nageh Khalaf Allam
Eco-Friendly, One-Step Synthesis Of Cobalt Sulfide-Decorated Functionalized Graphene For High-Performance Supercapacitors, Dalia M. El-Gendy, Israa M. Afifi, Nageh Khalaf Allam
Faculty Journal Articles
A simple approach is demonstrated to prepare functionalized spongy graphene/cobalt sulfide (FG-CoS)nanocomposites as interconnected, porous 3-dimensional (3D)network crinkly sheets. Such crinkly sheets contain the reduced spongy graphene oxide (SGO)sheets and the intercalated CoS nanoparticles within the spongy graphene. The fabricated FG-CoS composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and Raman spectroscopy. The synthesized materials were tested as supercapacitor materials in 3 M KOH using cyclic voltammetry (CV)at different potential scan rates, and galvanostatic charge/discharge tests at different current densities. The FG-CoS electrodes showed a maximum specific capacitance of 1072 F/g at a …
Effect Of Grilling As Processing Method On Zea Mays (Corn) Metabolites Composition As Analyzed Via Spme Gc-Ms And Chemometrics, Mohamed Ali Farag
Effect Of Grilling As Processing Method On Zea Mays (Corn) Metabolites Composition As Analyzed Via Spme Gc-Ms And Chemometrics, Mohamed Ali Farag
Faculty Journal Articles
Zea mays L. is a worldwide economical crop that is used as a food for man or as animal fodder owing to its rich nutritive composition. Despite being extensively studied, grilling effect on corn flavor and chemistry has yet to be reported. Impact of grilling at different degrees, light grilled corn (LGC) versus heavy grilled corn (HGC) on metabolite profile of Z. mays was assessed in this study using a holistic approach via SPME GC-MS and multivariate data analysis. A total of 39 volatiles were identified post-grilling to encompass pyrazines, phenols, pyrroles, furans, and aldehydes, with pyrazines likely to mediate …
Effect Of Ni-Ferrite And Ni-Co-Ferrite Nanostructures On Biogas Production From Anaerobic Digestion, Muhammed S. Abdallah, Fatma Y. Hassaneen, Yasmin Faisal, Mohy S. Mansour, Hanadi Ahmed Salem
Effect Of Ni-Ferrite And Ni-Co-Ferrite Nanostructures On Biogas Production From Anaerobic Digestion, Muhammed S. Abdallah, Fatma Y. Hassaneen, Yasmin Faisal, Mohy S. Mansour, Hanadi Ahmed Salem
Faculty Journal Articles
Many Nanoparticles (NPs) were reported to significantly enhance the production of biogas from the anaerobic digestion of organic wastes. Herein, two types of NPs (Ni-Ferrite and Ni-Co-Ferrite) were synthesized using the co-precipitation method and characterized using X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM) with energy dispersive X-ray spectroscopy (EDS) techniques. Three different concentrations (20, 70 and 130 mg/l) of each type were added to separate biogas reactors to study their effect on the biogas production compared to blank reactor. A pressure-based biogas reactor was designed and manufactured specifically to test the effect of the NPs on the anaerobic …
Effective Capacity Optimization For Cognitive Radio Networks Under Primary Qos Provisioning, Karim Gomaa Seddik
Effective Capacity Optimization For Cognitive Radio Networks Under Primary Qos Provisioning, Karim Gomaa Seddik
Faculty Journal Articles
Cognitive radios have emerged as a key enabler for opportunistic spectrum access, in order to tackle the wireless spectrum scarcity and under utilization problems over the past two decades. In this paper, we aim to enhance the secondary user (SU) performance while maintaining the desired average packet delay for the primary user (PU). In particular, we investigate the trade-off between delay-constrained primary and secondary users in cog- nitive radio systems. In the first part of this work, we use the hard-sensing scheme to make a decision on the PU activity and maximize the SU effective capacity subject to an average …
Electrochemical Nano-Patterning Of Brass For Stable And Visible Light-Induced Photoelectrochemical Water Splitting, Dina S. Eissa, Shimaa S. El-Hagar, Nageh Khalaf Allam
Electrochemical Nano-Patterning Of Brass For Stable And Visible Light-Induced Photoelectrochemical Water Splitting, Dina S. Eissa, Shimaa S. El-Hagar, Nageh Khalaf Allam
Faculty Journal Articles
A novel propitious nano-patterned brass oxide nanowires were fabricated via controlled anodization of α-brass in aqueous electrolytes at room temperature. X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and x-ray photoelectron spectroscopy (XPS)techniques were used to investigate the morphology, structure, and composition of the fabricated materials. The morphology of the resulted structures was found to depend on the concentration of the sodium bicarbonate used for anodization as well as the post treatment. The XRD analysis confirmed the existence of both ZnO and CuO. The XPS results suggest the formation of CuZnO nanowires. The fabricated nanowires showed exceptional optical activity …
Electrospun Lead-Free All-Inorganic Double Perovskite Nanofibers For Photovoltaic And Optoelectronic Applications, Ayat N. El-Shazly, Marwan Y. Rezk, Kareem M. Gameel, Nageh Khalaf Allam
Electrospun Lead-Free All-Inorganic Double Perovskite Nanofibers For Photovoltaic And Optoelectronic Applications, Ayat N. El-Shazly, Marwan Y. Rezk, Kareem M. Gameel, Nageh Khalaf Allam
Faculty Journal Articles
Organic-inorganic hybrid perovskite compounds are currently the archetypal materials for high performance photovoltaic (PV) and optoelectronic devices. However, the remaining bottlenecks preventing their large-scale production are their environmental/thermal instability and lead toxicity. Herein, we demonstrate a novel approach to synthesize single-phase electrospun Cs2SnIxCl6-x double perovskites with varying halide content (I, Cl, or mixed I/Cl) as active materials for potential application in perovskite solar cells (PSCs). The X-ray photoelectron spectroscopy and Raman spectroscopy analyses indicated the in situ formation of graphene oxide (GO) during the annealing process. The GO layer was found to enhance the optical properties and thermal stability of …
Electrospun Mesoporous Mn-V-O@C Nanofibers For High-Performance Asymmetric Supercapacitor Devices With High Stability, Menna Samir, Nashaat Ahmed, Mohamed Ramadan, Nageh Khalaf Allam
Electrospun Mesoporous Mn-V-O@C Nanofibers For High-Performance Asymmetric Supercapacitor Devices With High Stability, Menna Samir, Nashaat Ahmed, Mohamed Ramadan, Nageh Khalaf Allam
Faculty Journal Articles
Supercapacitors (SCs) are being considered the next-generation power storage devices due to the many favorable properties. In this regard, mesoporous nanostructures are excellent supercapacitor electrodes as they enjoy a large number of active sites and high surface area promising the utilization of the full capacitance of the active materials. In this study, we report on the assembly of electrospun, binder-free mesoporous Mn0.56V0.42O@C fibrous electrodes. The morphological and structural analyses of the fabricated Mn0.56V0.42O@C electrodes were investigated using field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), and glancing angle X-ray diffraction (GAXRD). The X-ray photoelectron spectroscopy (XPS) and …
Exosomes: Biological Couriers With Transformative Messages, Mohamed H. Yousef, Anwar Abdelnaser
Exosomes: Biological Couriers With Transformative Messages, Mohamed H. Yousef, Anwar Abdelnaser
Faculty Journal Articles
No abstract provided.
Experimental And Density Functional Theory Insights Into The Effect Of Withdrawing Ligands On The Fluorescence Yield Of Ru (Ii)-Based Complexes, Basant A. Ali, Nageh Khalaf Allam
Experimental And Density Functional Theory Insights Into The Effect Of Withdrawing Ligands On The Fluorescence Yield Of Ru (Ii)-Based Complexes, Basant A. Ali, Nageh Khalaf Allam
Faculty Journal Articles
The quality of emission spectra of metal complexes gives good insights into their performance in many optoelectronic applications. Herein, the effect of the number and position of various ligand structures on the emission spectra of Ru bipyridine complexes was studied. Specifically, the use of a different number of withdrawing groups (COOH) was investigated in detail. The complexes were first investigated using density functional theory (DFT) and time-dependent DFT calculations and then confirmed experimentally. The bandgap energy, reactivity, emission spectra and Stokes shift were found to depend on the number and position of the withdrawing groups attached to the Ru(bpy)22+ complexes. …
Fabrication Of Novel Formulations From Rigid Polyurethane Foams And Mortar For Potential Applications In Building Industry, Sonia Zulfiqar
Fabrication Of Novel Formulations From Rigid Polyurethane Foams And Mortar For Potential Applications In Building Industry, Sonia Zulfiqar
Faculty Journal Articles
Rigid polyurethane (PU) foams are widely used in modern life owing to excellent strength and weight carrying capacity. Most of the rigid PU foams in the market are based on polypropylene oxide (PPO) and methylene diphenyl diisocyanate. Amine catalysts, especially tertiary amines, are used to balance both the gelling and gas-foaming reactions, responsible for foam formation. The objective of present work is to prepare rigid PU foams from PPO based polyol and 4,4′- methylene diphenyl diisocyanate (MDI). The morphological and mechanical properties of polyurethane foam using tertiary amine and water blowing agent have been investigated. Moreover, acoustic and thermal insulation …
Ferroelectret Materials And Devices For Energy Harvesting Applications, Mustafa Hani Arafa
Ferroelectret Materials And Devices For Energy Harvesting Applications, Mustafa Hani Arafa
Faculty Journal Articles
This paper provides an overview of ferroelectret materials for energy harvesting applications. These materials take the form of a cellular compliant polymer with polarised pores that provide a piezoelectric response to generate electrical energy as a result of an applied strain or surrounding vibration. The manufacturing processes used to create ferroelectret polymer structures for energy harvesting are discussed, along with the range of microstructural features and pore sizes that are formed. Their important mechanical, electrical and harvesting performance are then described and compared. Modelling approaches for microstructural design or for predicting the vibrational and frequency dependent response are examined. Finally, …
Finite-Energy Spatiotemporally Localized Airy Wavepackets, Amr Mohamed Shaarawi
Finite-Energy Spatiotemporally Localized Airy Wavepackets, Amr Mohamed Shaarawi
Faculty Journal Articles
The time-diffraction technique introduced by Porras recently is motivated in this article in terms of the Lorentz invariance of the equation governing the narrow angular spectrum and narrowband temporal spectrum paraxial approximation and it is used to derive finite-energy spatiotemporally confined subluminal, luminal and superluminal Airy wave packets. In addition, a novel exact finite-energy luminal Airy splash mode-type solution to the scalar wave equation is derived using Bateman’s conformal transformation.
First Observation Of The Directed Flow Of D0 And D0 ̄ In Au+ Au Collisions At Snn= 200 Gev, Ahmad Hamed
First Observation Of The Directed Flow Of D0 And D0 ̄ In Au+ Au Collisions At Snn= 200 Gev, Ahmad Hamed
Faculty Journal Articles
We report the first measurement of rapidity-odd directed flow (v1) for D0 and D0̄ mesons at midrapidity (|y|<0.8) in Au+Au collisions at sNN=200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. In 10-80% Au+Au collisions, the slope of the v1 rapidity dependence (dv1/dy), averaged over D0 and D0̄ mesons, is -0.080±0.017(stat)±0.016(syst) for transverse momentum pT above 1.5 GeV/c. The absolute value of D0 meson dv1/dy is about 25 times larger than that for charged kaons, with 3.4σ significance. These data give a unique insight into the initial tilt of the produced matter, and offer constraints on the geometric and transport parameters of the hot QCD medium created in relativistic heavy-ion collisions.
Influence Of Pickling Process On Allium Cepa And Citrus Limon Metabolome As Determined Via Mass Spectrometry-Based Metabolomics, Mohamed Ali Farag
Influence Of Pickling Process On Allium Cepa And Citrus Limon Metabolome As Determined Via Mass Spectrometry-Based Metabolomics, Mohamed Ali Farag
Faculty Journal Articles
Brine, the historically known food additive salt solution, has been widely used as a pickling media to preserve flavor or enhance food aroma, appearance, or other qualities. The influence of pickling, using brine, on the aroma compounds and the primary and secondary metabolite profile in onion bulb Allium cepa red cv. and lemon fruit Citrus limon was evaluated using multiplex metabolomics technologies. In lemon, pickling negatively affected its key odor compound “citral”, whereas monoterpene hydrocarbons limonene and γ-terpinene increased in the pickled product. Meanwhile, in onion sulphur rearrangement products appeared upon storage, i.e., 3,5-diethyl-1,2,4-trithiolane. Profiling of the polar secondary metabolites …
Integrated Slotted Ring Resonator At Mid-Infrared For On-Chip Sensing Applications, Sarah Shafaay, Mohamed A. Swillam
Integrated Slotted Ring Resonator At Mid-Infrared For On-Chip Sensing Applications, Sarah Shafaay, Mohamed A. Swillam
Faculty Journal Articles
We propose various optical ring gas sensors. These gas sensors are promising candidates for integrated on-chip sensing. The sensing operation depends on the change in the effective index. We show a detailed study of different sensors utilizing the absorption wavelength of both methane and carbon dioxide gases. These sensors mainly operate at the range of mid-infrared wavelengths because it contains the vibrational resonance of the gases of interest. We provide the details about the dimensions and the material used in our different structures. Moreover, we report sensitivity up to 5938 nm / RIU, and the full-width-half maximum (FWHM) and figure …
Longitudinal Double-Spin Asymmetry For Inclusive Jet And Dijet Production In P P Collisions At S= 510 Gev, Ahmad Hamed
Longitudinal Double-Spin Asymmetry For Inclusive Jet And Dijet Production In P P Collisions At S= 510 Gev, Ahmad Hamed
Faculty Journal Articles
We report the first measurement of the inclusive jet and the dijet longitudinal double-spin asymmetries, ALL, at midrapidity in polarized pp collisions at a center-of-mass energy s=510 GeV. The inclusive jet ALL measurement is sensitive to the gluon helicity distribution down to a gluon momentum fraction of x≈0.015, while the dijet measurements, separated into four jet-pair topologies, provide constraints on the x dependence of the gluon polarization. Both results are consistent with previous measurements made at s=200 GeV in the overlapping kinematic region, x>0.05, and show good agreement with predictions from recent next-to-leading order global analyses.