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Real and Altered Fingerprint Classification Based on Various Features and Classifiers

Computers, Materials & Continua 2023年第1期74卷 327-340页

作者： Saif Saad Hameed ismail Taha Ahmed Omar Munthir Al Okashi College of Computer Sciences and Information Technology University of AnbarAnbarIraq

Biometric recognition refers to the identification of individuals through their unique behavioral features(e.g.,fingerprint,face,and iris).We need distinguishing characteristics to identify people,such as fingerprints,which are world-renowned as the most reliablemethod to identify *** recognition of fingerprints has become a standard procedure in forensics,and different techniques are available for this *** current techniques lack interest in image enhancement and rely on high-dimensional features to generate classification ***,we proposed an effective fingerprint classification method for classifying the fingerprint image as authentic or altered since criminals and hackers routinely change their fingerprints to generate fake *** order to improve fingerprint classification accuracy,our proposed method used the most effective texture features and *** Analysis(DCA)and Gaussian Discriminant Analysis(GDA)are employed as classifiers,along with Histogram of Oriented Gradient(HOG)and Segmentation-based Feature Texture Analysis(SFTA)feature vectors as *** performance of the classifiers is determined by assessing a range of feature sets,and the most accurate results are *** proposed method is tested using a Sokoto Coventry Fingerprint Dataset(SOCOFing).The SOCOFing project includes 6,000 fingerprint images collected from 600 African people whose fingerprints were taken ten *** distinct degrees of obliteration,central rotation,and z-cut have been performed to obtain synthetically altered replicas of the genuine *** proposal achieved massive success with a classification accuracy reaching 99%.The experimental results indicate that the proposed method for fingerprint classification is feasible and *** experiments also showed that the proposed SFTA-based GDA method outperformed state-of-art approaches in feature dimension and classification accuracy.

关键词： Fingerprint classification HOG SFTA discriminant analysis(DCA)classifier gaussian discriminant analysis(GDA)classifier SOCOFing

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Duodeno-jejunal junction dyssynergia: Description of a novel syndrome

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World Journal of Gastroenterology 2007年第30期13卷 4112-4116页

作者： Ahmed Shafik ismail A Shafik Olfat El Sibai Ali A Shafik Department of Surgery and Experimental Research Faculty of Medicine Cairo University Cairo Egypt Department of Surgery Faculty of Medicine Menoufia University Shebin El-Kom Egypt

AIM： To investigate the hypothesis that duodeno-jejunal dyssynergia existed at the duodeno-jejunal junction.METHODS： Of 112 patients who complained of epigastric distension and discomfort after meals, we encountered nine patients in whom the duodeno-jejunal junction did not open on duodenal contraction. Seven healthy volunteers were included in the study. A condom which was inserted into the ist duodenum was filled up to 10 mL with saline in increments of 2 mL and pressure response to duodenal distension was recorded from the duodenum, duodeno-jejunal junction and the jejunum.RESULTS： In healthy volunteers, duodenal distension with 2 and 4 mL did not produce pressure changes, while 6 and up to 10 mL distension effected significant duodenal pressure increase, duodeno-jejunal junction pressure decrease but no jejunal pressure change. In patients, resting pressure and duodeno-jejunal junction and jejunal pressure response to 2 and 4 mL duodenal distension were similar to those of healthy volunteers. Six and up to 10 mL 1^st duodenal distension produced significant duodenal and duodeno-jejunal junction pressure increase and no jejunal pressure change.CONCLUSION： Duodeno-jejunal junction failed to open on duodenal contraction, a condition we call ＇duodenojejunal junction dyssynergia syndrome＇ which probably leads to stagnation of chyme in the duodenum and explains patients＇ manifestations.

关键词： Epigastric distension Vomiting Nausea Dyspepsia Chyme

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Islands of stability and quasi-magic numbers for super- and ultra-heavy nuclei

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Chinese Physics C 2016年第12期40卷 69-90页

作者： M.ismail A.Y.Ellithi A.Adel Hisham Anwer Physics Department Faculty of Science Cairo University Physics Department College of Science Majmaah University Physics Department German University in Cairo

In the framework of Strutinsky＇s approach, we calculated the shell and the residual pairing correction energies for 5569 even-even nuclei in the range 72 ≤ Z ≤ 282 and 96≤N ≤ 540. Quasi-magic numbers and deformed islands of stability that reside in a range defined by Green＇s formula and the two-neutrons drip line are introduced. We present 36 quasi-magic proton and 53 quasi-magic neutron magic numbers that contribute to the formation of 133 deformed islands of stability along the N-Z space. The quasi-magic proton and neutron magic numbers volatile as the mass number increases and other magic numbers take over. Consequently, the deformed islands of stability fail to exhibit a pattern along the search space covered.

关键词： deformed nuclei islands of stability magic numbers

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Corrosion Penetration and Crystal Structure of AA5022 in HCl Solution and Rare Earth Elements

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Journal of Materials Science & Technology 2005年第3期21卷 324-330页

作者： A.A.El-Meligi S.H.Sanad A.A.ismail A.M.Barakat Electrochem. and Corrosion Lab. Physical Chemistry Dept. National Research Centre Dokki Cairo EgypElectrochem. and Corrosion Lab. Physical Chemistry Dept. National Research Centre Dokki Cairo EgypElectrochem. and Corrosion Lab. Physical Chemistry Dept. National Research Centre Dokki Cairo EgypChemistry Dept. Faculty of Science Cairo University Cairo Egypt

Al-alloy (AA5022) corrosion penetration (CP) and crystal structure were investigated after running static immersion corrosion tests in 1 mol/L HCl solution and different concentrations of rare earth elements (La3+), (Ce3+) and their combination, at different temperatures. X-ray diffraction (XRD) was used to examine the surface structure before and after immersion, and secondary electron detector (SED) was operated to study surface morphology. In 1 mol/L HCI solution the corrosion penetration increased with increasing temperature and immersion time. The increase of La3+ concentrations up to 1000×10-6 g/L led to the decrease in the corrosion penetration, and the decrease in Ce3+ concentrations up to 50×10-6 g/L decreases the corrosion penetration of the alloy. Mix3 (combination of La3+ and Ce3+) dramatically reduced the corrosion penetration. This suggests that a synergistic effect exists between La3+ and Ce3+. The reaction kinetics both in absence and presence of La3+ and Ce3+ and their combination would follow a parabolic rate law. The XRD patterns revealed that the intensities of certain hkl phases are affected. The crystalline structure has not been deformed either before or after testing and there are no additional peaks except that of the as-received alloy. In the case of accelerating CP, the surface morphology shows that the roughness and voids of surface are increased.

关键词： Al-alloy Corrosion penetration Crystal structure XRD

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Structural, morphological, Raman, optical, magnetic, and antibacterial characteristics of CeO2 nanostructures

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International Journal of Minerals,Metallurgy and Materials 2016年第1期23卷 102-108页

作者： Fazal Abbas Javed Iqbal Tariq Jan Noor Badshah Qaisar Mansoor Muhammad ismail Laboratory of Nanoscience and Technology Department of Physics International Islamic University H-10 Islamabad 44000 Pakistan Department of Basic Science University of Engineering and Technology Peshawar 26000 Pakistan Institute of Biomedical and Genetic Engineering (IBGE) Islamabad 44000 Pakistan

In this study, CeO2 nanostructures were synthesized by a soft chemical method. A hydrothermal treatment was observed to lead to an interesting morphological transformation of the nanoparticles into homogeneous microspheres composed of nanosheets with an average thickness of 40 nm. Structural analysis revealed the formation of a single-phase cubic fluorite structure of CeO2 for both samples. A Raman spectroscopic study confirmed the XRD results and furthermore indicated the presence of a large number of oxygen vacancies in the nanosheets. These oxygen vacancies led to room-temperature ferromagnetism （RTFM） of the CeO2 nanosheets with enhanced magnetic characteristics. Amazingly, the nanosheets exhibited substantially greater antibacterial activity than the nanoparticles. This greater antibacte- rial activity was attributed to greater exposure of high-surface-energy polar surfaces and to the presence of oxygen vacancies.

关键词： ceciurn oxide nanosheets chemical synthesis ferromagnetism oxygen vacancies antibacterial properties

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Experimental Study of Heat Transfer Enhancement in Solar Tower Receiver Using Internal Fins

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Computers, Materials & Continua 2021年第8期68卷 1693-1711页

作者： Hashem Shatnawi Chin Wai Lim Firas Basim ismail Abdulrahman Aldossary Education Sector in Jubail Jubail Technical InstituteJubail Industrial City31961Saudi Arabia Mechanical Engineering Department College of EngineeringUniversiti Tenaga NasionalKajang43000SelangorMalaysia Power Generation Unit Institute of Power Engineering(IPE)Universiti Tenaga NasionalKajang43000SelangorMalaysia

The receiver is an important element in solar energy *** principal receiver’s tubes in power plants are devised to work under extremely severe conditions,including excessive heat *** of the tube’s circumference is heated whilst the other half is *** study aims to improve the heat transfer process and reinforce the tubes’structure by designing a new receiver;by including longitudinal fins of triangular,circular and square *** research is conducted experimentally using Reynolds numbers ranging from 28,000 to 78,*** fins have demonstrated the best improvement for heat *** Reynolds number value near 43,000 Nusselt number(Nu)is higher by 3.5%and 7.5%,sequentially,compared to circular and square tube fins,but varies up to 6.5%near Re=*** lowest friction factor is seen in a triangular fin receiver;where it deviates from circular fins by 4.6%,and square fin tubes by 3.2%.Adding fins makes the temperature decrease gradually,and in the case of no fins,the temperature gradient between the hot tube and water drops sharply in the planed tube by 7%.

关键词： Solar tower power external receiver longitudinal internal fins thermocouples temperature gradient

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Electrical Conductivity and Sensitive Characteristics of Ag-Added BaTiO_3-CuO Mixed Oxide for CO_2 Gas Sensing

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Journal of Materials Science & Technology 2011年第1期27卷 35-40页

作者： A.M.El-Sayed F.M.ismail S.M.Yakout Inorganic Chemistry Department National Research CentreTahrir StreetDokki P.C.12622 CairoEgypt

Carbon dioxide gas sensors based on BaTiO3-CuO composite with different concentrations of Ag addition（1,1.5 and 2 wt%） have been prepared by stander ceramic method and sintered at 500 and 700℃ for 5 *** conductivity and gas sensing properties of the prepared samples were *** conductivity measurement was used to characterize the obtained sintered sensor *** was found that electrical conductivity and the sensitivity to CO2 were improved with Ag addition and *** correlation between Ag content at different sintering temperature and sensing characteristics towards CO2 is discussed.

关键词： BaTiO3-CuO composite Ag addition Electrical conductivity CO2 sensitive properties

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MXene terminating groups=O,–F or–OH,–F or=O,–OH,–F,or=O,–OH,–Cl?

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Journal of Energy Chemistry 2023年第1期76卷 90-104,I0003页

作者： Tariq Bashir Sara Adeeba ismail Jiaqi Wang Wenhao Zhu Jianqing Zhao Lijun Gao College of Energy Soochow Institute for Energy and Materials InnovationsSoochow UniversitySuzhou 215006JiangsuChina

MXenes are a novel family of two-dimensional(2D)materials that are fast gaining popularity due to their versatile *** surfaces of these materials are often functionalized by negatively charged terminal groups,such as=O,OH,and F during their synthesis,and it has been hypothesized that regulating the surface terminators enables to control the material ***,there is still a large gap between computational and experimental investigations regarding comprehending the surface functional *** with mixed terminations are consistently synthesized in experiments,although pure terminated surfaces are predicted by computational *** we summarized the nature of chemical bonding in transition metal carbide materials(MXenes)by1H and19F nuclear magnetic resonance(NMR),Raman,X-ray absorption near edge structure(XANES),extended X-ray absorption fine structure(EXAFS),ultraviolet photoelectron spectroscopy(UPS),X-ray photoelectron spectroscopy(XPS)/scanning transmission electron microscopy(STEM),and thermogravimetric analysis-mass spectrometry(TGA-MS)*** literature reveals that=O,–OH,–F,and–Cl are typical MXene surface ***,recent comparative investigations on the valence band intensity distribution in MXenes reveal that the–OH cannot be considered an intrinsic termination species in *** surface terminals(=O,–OH,–F,and–Cl)of several MXenes,particularly V2CTxand Ti3C2Tx,will be identified and quantified *** have also discussed different etching approaches for the synthesis of MXene,the dependence of MXene conductivity on MXene terminating groups,and the emission of various gaseous products that evolved during its chemical *** paper provides significance,especially in the field of energy conversion and storage materials,where the intercalation process is crucial.

关键词： MXene surface terminating groups Characterization Conductivity Oxidation

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A Q-Switched Erbium-Doped Fiber Laser with a Carbon Nanotube Based Saturable Absorber

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Chinese Physics Letters 2012年第11期29卷 67-69页

作者： S.W.Harun M.A.ismail F.Ahmad M.F.ismail R.M.Nor N.R.Zulkepely H.Ahmad Department of Electrical Engineering University of Malaya 50603 Kuala LumpurMalaysia Photonics Research Center Department of PhysicsUniversity of Malaya50603 Kuala LumpurMalaysia Department of Physics University of Malaya50603 Kuala LumpurMalaysia

We demonstrate a simple,compact and low cost Q-switched erbium-doped fiber laser(EDFL)using single-wall carbon nanotubes(CNTs)as a saturable absorber for possible applications in metrology,sensing,and medical *** EDFL operates at around 1560 nm with repetition rates of 16.1 kHz and 6.4 kHz with saturable absorbers SA1 and SA2 at a pump power of 120 *** absorbers are constructed by optically driven deposition and normal deposition *** is observed that the optical deposition method produces a Q-switched EDFL with a lower threshold of 70 mW and better Q-switching performance compared to that of the normal deposition *** EDFL also has pulse energy of 90.3 nJ and pulse width of 11.6μs at 120 mW pump power.

关键词： pump switched Erbium

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Recalibrating Impact of Regional Actors on Security of China–Pakistan Economic Corridor (CPEC)

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Fudan Journal of the Humanities and Social Sciences 2022年第3期15卷 437-462页

作者： Muhammad ismail Syed Mehdi Husnain Department of Politics and IR Qurtuba UniversityD.I.KhanPakistan Department of Political Science&IR Qurtuba UniversityD.I.KhanPakistan

China and Pakistan's collaboration in attaining regional integration can alter the regional geopolitical and geostrategic *** is the steps toward benefiting Pakistan,China,and the whole *** article explored the regional actors’role in undermining and threatening the *** of the secondary data revealed that India,Iran,Afghanistan,and the USA could create security problems for *** Framework,based on Behavioralist theory,was developed to investigate these security threats through the primary data collected through the structured questionnaire with the help of *** primary data also revealed that Iran and India have vital *** study also discussed suggestions and implications for future research.

关键词： CPEC India Iran USA Afghanistan Terrorism Baluch Conundrum Political Turmoil Peace in Afghanistan

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