Qatar University Institutional Repository: Recent submissions
Now showing items 1-20 of 28906
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Exploring Classification Models for Video Source Device Identification: A Study of CNN-SVM and Softmax Classifier
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)Video Source device identification plays a crucial role in video forensics as the proliferation of video capturing devices has given rise to crimes with videos that are challenging to trace. Reliance on metadata extraction ... -
Smart System for a Self-Driving Scooter Prototype
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)Traffic problems constitute one of the major issues addressed worldwide. Some universities with an increasing number of students moving at a fast pace face transportation problems almost every day. Hence, this paper aims ... -
Intelligent Brain Tumor Detector
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)A major challenge in brain tumor treatment planning is determination of the tumor extent. Brain tumor disease can be identified with imaging techniques such as MRI. The images produced by an MRI scan can provide a clear ... -
Vehicle Instance Segmentation Polygonal Dataset for a Private Surveillance System
( MDPI , 2023 , Article)Vehicle identification and re-identification is an essential tool for traffic surveillance. However, with cameras at every corner of the street, there is a requirement for private surveillance. Automated surveillance can ... -
A Pipeline for Story Visualization from Natural Language
( MDPI , 2023 , Article)Generating automatic visualization from natural language texts is an important task for promoting language learning and literacy development for young children and language learners. However, translating a text into a ... -
Wearable Ultrasound devices for continuous health monitoring: Current and future Prospects
( Institute of Electrical and Electronics Engineers Inc. , 2024 , Conference Paper)Advancements in wearable electronics and portable sensors have enabled long-term and real-time health monitoring. Among these advancements, wearable ultrasound devices have garnered attention due to their portability, ease ... -
Pose Estimation of Physiotherapy Exercises using ML Techniques
( Institute of Electrical and Electronics Engineers Inc. , 2024 , Conference Paper)This study introduces an innovative methodology for accurately classifying physiotherapy exercises, integrating Pose Estimation and diverse Machine Learning (ML) techniques within the alwaysAI framework. The workflow ... -
Synthesis and characterization of oxovanadium(IV) urea compound
( Chemical Publishing Co. , 2005 , Article)Vanadyl chloride, VOCl2.6H2O, reacts with urea at room temperature to form the four coordinated oxovanadium(IV) complex of the type [V(O)(urea)2(Cl)2]. The complex is in the mononuclear form where the two urea molecules ... -
Synthesis and spectroscopic studies of metal complexes formed in the reaction of metal ions with urea at high temperature
( Korean Chemical Society , 2007 , Article)Urea reacts with PtCl2, H2[PtCl6]·6H2O, H2[IrCl6] and Ni(CH3CO2)2 in aqueous solution at high temperature (60-80 °C) yielding [PtCl2(Urea)]·2H2O (1), (NH4)2[PtCl6] (2), (NH4)2[IrCl6]·H2O (3) and [Ni2(OH)2(NCO)2(H2O)2] (4) ... -
Spectroscopic studies on the reaction of iodine with the mixed oxygen-nitrogen cyclic base 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8,8,8] hexacosane
( Chemical Publishing Co. , 2005 , Article)The interaction of the mixed oxygen-nitrogen cyclic base, 4,7,13,16,21,24-hexaoxa-1,10- diazabicyclo[8,8,8] hexacosane (HODABCHC) with iodine as a s-acceptor has been studied spectrophotometrically at room temperature in ... -
Vibrational analysis of the trigonal bipyramidal NbCl5 and NbBr5 molecules
( Elsevier , 1986 , Article)Vibrational normal coordinate analysis has been made for NbCl5 and NbBr5 molecules with D3h symmetry and using Wilson's GF matrix method. The observed frequencies are quantitatively assigned on the basis of the calculated ... -
Infrared and Raman studies of [UO2(salen)(L)] (L=H2O and CH3OH)
( Elsevier , 1988 , Article)The infrared and Raman spectra of [UO2(salen)(H2O)] and [UO2(salen)(CH3OH)] (salen=N,N′-ethylenebis(salicylideneimine) have been recorded. Assignments for the fundamental vibrations are proposed on the basis of C2v symmetry ... -
Spectroscopic studies on the uranyl-schiff base solid complex (N,N'-p-phenylenebis(salicylideneiminato)UO2)
( Elsevier , 1992 , Article)The dioxouranium(VI)-Schiff base complex (N,N'-p-phenylenebis(salicylideneiminato)UO2); (UO2(sal-p-phdn)) was prepared. Its resonance Raman, infrared and electronic spectra were obtained and assigned on the basis of C2v ... -
Preparation and infrared spectra of (Cu(O)(H2O)3) and (Cu2(O) (C1)2(H2O)2) complexes formed in the reactions of Cu(II) salts with urea
( Elsevier , 1989 , Article)The preparation and characterization of the new solid complexes (Cu(O)(H2O)3) and (Cu2(O)(Cl)2(H2O)2) formed in the reaction of urea with CuSO4 · 5H2O and CuCl2 · 2H2O, respectively, in aqueous media at ~75°C are reported. ... -
Spectoscopic and structural studies on charge-transfer complexes of lanthanum(III)acetylacetonate with σ-acceptor iodine and π-acceptor DDQ
( Elsevier , 2011 , Article)The interaction of the donor La(III)acetylacetonate, [La(acac)3], with iodine as a r-acceptor and with 2,3- dichloro-5,6 dicyano-1,4-benzoquinone, (DDQ) as a p-acceptor have been studied in the solvents CH2Cl2, CHCl3 and ... -
Vibrational analysis of the (VO(O2)2NH3)- ion
( Elsevier , 1990 , Article)The infrared spectra of the solid complex NH4 (VO(O2)2NH3) were obtained. Due to the complicated structure of the diperoxo (VO(O2)2NH3)− ion, normal coordinate analysis was introduced in order to make quantitative assignments ... -
Synthesis and infrared spectra of alkaline earth metal carbonates formed by the reaction of metal salts with urea at high temperature
( Indian Academy of Sciences , 2004 , Article)The metal carbonate, MCO3 (M = Ca, Sr and Ba), was synthesized by a novel method of reacting aqueous solution of each of Ca2+, Sr2+ and Ba2+ salts with urea at high temperature, ∼ 80°C. The reaction products were characterized ... -
Electronic spectral studies and solvent effects on the reaction of iodine with 1,4,8,11-tetraazacyclotetradecane
( Elsevier , 1988 , Article)The reaction between iodine and 1,4,8,11-tetraazacyclotetradecane (TACTD) is studied photometrically in various solvents like CCl4, CHCl3, CH2Cl2 and 1,2-dichloroethane. The results reveal that in each solvent the (TACTD):I2 ... -
Resonance Raman studies of the peroxotitanate(IV) complexes K2(Ti(O2)(SO4)2).5H2O and K2(Ti(O2)(C2O4)2).3H2O
( Elsevier , 1986 , Article)The resonance Raman spectra of K2(Ti(O2)(SO4)2)·5H2O and K2(Ti(O2)(C2O4)2)·3H2O are recorded. The results are consistent with the triangular structure of the peroxotitanium unit, Ti(O2), with C2ν symmetry. The ν(OO), ... -
Resonance Raman and far-infrared studies of charge-transfer complexes of iodine
( John Wiley and Sons Inc , 1986 , Article)The reactions of I2 with phenazine (PH), acridine (AC) and hexamethylenetetramine (HMTA) have been investigated by resonance Raman and far-infrared spectroscopy. The results indicate that the species (PH)2I+I3−, (AC)2I+I3− ...
