Ibn AL-Haitham Journal For Pure and Applied Sciences
Ibn Al-Haitham Journal for Pure and Applied Sciences
Section: Mathematics Keywords: Covering Theorem for Alternating Groups For the alternating group An J. L. Brenner, through a series of papers showed that the class C of n- cycle or (n-1)- cycle, CCC covers A, for n = 4k - 1, 4k and 4k + 1, In this paper, the contumacy class of type (2)(n-2),n>6and n 1S even was studied. This class splits into two classes of A, c denoted by C and C, CCC= C'C'C was found.
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Section: Physics Keywords: Kr-82 The energy level scheme of 82 Kr has been established On the basis of singles gamma spectra, gamma coincidence and Compton suppression measurements. Ge (Li) detectors were used to study the gamma spectra produced in the B- decay of Br to 82 Kr. A total of thirty-six -rays were observed. of which two at 182.9" and 454.98 kev are new. These two transitions considered are to depopulate new 5) level at 3001-31 keV Relative intensities and 10g ft values were calculated and spin / parities deduced
The Mean Time of Strip Domain Stay in Metastable State
Section: Physics Keywords: Metastable State The phenomenon of the thermoinduced jumps of the step domains length in imperfect magnetic films with perpendicular with anisotropy is studied. For describing of the strip domain transitions into other metastable states, the stochastic equation of its head movement is used. In this equation the spatial non-uniformities of the medium are modeled by the restricted random function, and thermal fluctuations by the Gaussian white noise. The dependences on the temperature and the bias field of the mean time of strip domain stay in a metastable state were calculated by the methods of the Markovian processes theory
Determination of crystallite size and strain values by fourier method for α- Al2O3
Section: Physics Keywords: crystallite size The sintering of Al(OH)3 powder for 2 hours each run in the temperature range 1673 K to 1873 K gives rise to the following crvstallization sequence: γ- Al2O3 → γ-θ -Al2O3 → θ+α- Al2O3 → α- Al2O3 The crvstallographic structures of the above products are assessed by x-ray diffraction method . The variation of crystallite size and root mean square (rms) strains in a- Al03 powder with sintering the temperature range 1673 K to 1873 K are studied by applying Fourier method using Mitra &Misra technique for 3 crystallographic reflections (104), (113) and (116). The results show that the lower temperature α- Al2O3 (1673 K) derived from Al(OH)3 produces lower crystallite size and higher rms strain . On the other hand, rms strain decreases with increasing the temperature to 1873K and the differences between the broadening of above reflections are decreased. Thus, the anisotropy higher temperature of sintering (1873K).Lower temperature sintering is reduced at1673 K of AI(OH)3 yield α- Al2O3 compacts of higher value of micro hardness number 884 and this value drops to 731 at 1873 K.
Determination of the Minimum Uncertainty States for a Rosen-Morse Potential by Using the Canonical Transformation of the Hamiltonian of the System
Section: Physics Keywords: Minimum Uncertainty States The wave functions of the minimum uncertainty states for a one- dimensional Rosen-Morse potential are obtained via exploiting Nieto's formalism for the construction of minimum uncertainty coherent states for different one-dimensional potentials and by using a canonical transformation of the Hamiltonian of the problem into a new Hamiltonian which is chosen so that it looks like a harmonic oscillator the mathematical derivations of the Nieto's procedures are presented.
Synthesis and Characterisation of some mixed-Ligand Complexes Containing N-acetyl Glycine and Pyridine with some Metal Ions.
Section: Chemistry Keywords: mixed-Ligand Complexes Some meta ions Mn+2, Fe+2, Co+2, Ni+2, Cu+2, Zn+2, Cd-2, Hg+2 complexes of N-acetyl glycine (NAGH) and (pyridine) have been synthesized and then characterized on the basis of their (C.H.N) analysis, IR.UV-Visible spectroscopy and conductive measurements and Magnetic susceptibility. From the results obtained, the following general formula has been given for the prepared complexes: [M+n(NAG): (Py):] XC2H5OH, where M= Mn+2, Fe+2, Co+2, Ni+2, Cu+2, Zn+2, Cd-2, Hg+2 n=2.X=01 (NAG) =Ligand ion (N-acetylglycinato( py = pyridine
Brucella Blastongenesis of Rabbits Lymphocytes Sensitized with Outer Membrane Proteins. Lipopolyccharide and Lipid-A. Associated Protein Extracted from melitensis.
Section: Biology Keywords: Brucella The study conformed rabbit lymphocytes on Blastogenesis assay was sensitized with outer membrane proteins (OMP), lipopoly saccharine LPS) and Lipid. A. Associated protein (LPA) extracted from brucella (filed strain). Results showed that there was an increase in melitensis the mitotic index (M.I) induced by LPA (19,48) and OMP (11.7) with while LPS induced lower value of MI (7.61).
Effect of Using Programming Instructions by Computers on the Achievement of Students and their Motivation to Learning Electrical Power of Electronics Subject
Section: Computer Keywords: Programming Instructions The aims of this research is to know the effect of using programming teaching by computers on the achievement of student and their motivation to learning electrical power electronics subject the sample is (45) students of the second class in Electrical Techniques in Technical Institute in Nassirviah at (2000-2001) that was divided into three equivalent groups by using equivalent groups designed. A choice of four titles in Electrical power Electronics and designed then by programming teaching and designed four computer teaching programes with roles of programming teaching . The final achievement test built from multiple choice that has validity and reliability consisting of (40) questions . And we designed the instrument f attitudes of students to subject before teaching consisting of (9) paragraphs and after teaching consisting of (13) paragraphs has validity and reliability. The instrument before teaching applied . has shown no statistical differences between the three groups traditional methods , and first. After that the control teaching by experimental by traditional methods and programming instruction ;and second experimental by traditional methods and programming the final achievement instruction by computer .After that we applied for testing. Test and instrument of motivation after teaching Coloration coefficient , ratio weighted we used Pearson and critical ratio as statistical methods .The findings are supremacy students of the second experimental group and control group at series in achievement and motivation to learning on the experiment group and control group.
Diagnosing Poultry Diseases Expert System
Section: Computer Keywords: Poultry Diseases Expert System We built and implemented an expert system capable of diagnosing poultry diseases by simulating computer programs using "Prolog" language. Depending on expertise taken form experts, book scientific magazines and applied studies on diseases of poultry animal medical centers in the situated in governorate. A number of interviews and live observations have been conducted where knowledge was edited, ordered and put into special structure in the language used in writing and programming the system A number of very common diseases have been selected equals (l3) diseases to be diagnosed by a series of symptoms of each disease. Knowledge has been incorporated into the expert system by using inference rules. The system depends on an interactive style to interface with the use by using menu driven method. The ultimate linal results have been presented to the expert system alter lasting stage which includes three medical centers in the governorate where the system has been applied to (120) case studies and the expert system has proven its efficiency in the test.
Information Security Study for Information Hiding in Electronic Computers
Section: Computer Keywords: Information Hiding Cryptographic technologies are nowadays widely recognized asthe essential tool for security and trust in electronic communication. The research produces some important methods to hide information like this hide secret messages in other messages, graphic images and sound files.
Studying of Triangle Spread Function for Optical System includes Square Aperture and Compare with Circular Aperture ,
Section: Physics Keywords: Triangle Spread Function In this research: the triangle spread function (concluded from pupil function technique) has been regarded, to find image intensity from triangle object in optical system includes square aperture to compare with concluded values from (2.). The results shown that the square aperture contributes little Improvement on resolving power, and increases the depth of focus.
The Excited of Electromagnetic Waves for Langmuir Waves in Relativistic Plasma
Section: Physics Keywords: Electromagnetic The study of the excited nonlinear Langmuir waves has been obtained in relativistic plasma in a resonance beat frequency for two high frequency laser waves. In accordance to Vlasoy relativistic equation, we deduce a non-linear equation that illustrates the proceeding and behavior of the amplitude of exited Langmuir wave under resonant conditions and non-linear Schrödinger equation in her right term. On the basis of these two equations modulation and the kinetic resonance and we study the the effect of modulatior instability on the buildup of Langmuir wave
Calculating The Phosphor Concentration in Water of Tigris by (DNAA) Technique
Section: Physics Keywords: Phosphor Samples of water from some cities on Tigris river have been used to determine the concentration by the derivative activation analysis (DNAA) technique. Phosphor concentration was neutron determined by preparing complex (Phosphor Vanadium Moly date) ion P:V ratio of 1:2 After extraction by reagent organic MIBK and irradiation. The concentration was found to be (1.503-2.607) ppm.
The Effect of Lead Pollution on GST, GPT Diseases ALP. Activity and its Relation to Liver
Section: Chemistry Keywords: Lead Pollution The study of the effect of lead pollution on the activity of GST, GPT and ALP was undertaken occupational workers. The specimen of the project were divided into three groups according to their occupational periods as follows : Group A: 25 workers ,period of occupation 2yrs in Baghdad Factory Group B: 25 workers, period of occupation (2-10) yrs. in Baghdad factory. Group C: 25 workers. period of occupation10 yrs. in Baghdad Factory. Another group of 25 healthy unexposed to lead were considered as control group. The results showed an elevation in the activity of all enzymes under investigation in the blood of workers. The activity was positively correlated with the period of occupation i,e lead exposure. The elevation in GPT activity could be used as an damage , while elevated levels of GST occurs in all types of pollution indicator of liver to biological cells minimize the toxic effect erythrocytes and of pollutant.
Synthesis and characterization of some Lanthanide (III) Ions complexes with Anthranilic-acid and Amino acid phenylalanine
Section: Chemistry Keywords: Anthranilic-acid This paper presents the synthesis and identification of some complexes of the (Anthranilic acid )(ligand) symbolized as (A) and some trivalent ions Ln111[ La(III), Ce(I) , Pr(III) , Nd(III) .Gd(III) , Ho (III) and the same ions with the (Phenylalanine ) (ligand) symbolized as Phe). Productsi have been found to be solid crystalline, complexes which have been studied and characterized by the :Thermal stability, solubility, molar conductivity, elemental analysis (C.H.N), magnetic measurements. determination the percentage of the metal in the complexes by (A. A. S) and sepectrosopis methods (Uv-Vis ,IR(. From the above investigations, the general formula has been suggested [M(A-1)3] and M(Phe.1)3] were M111- La(III), Ce(III) , Pr(III) , Nd(III),Gd(III), Ho(III) A-11= C7H6NO2, Phe-11=C9H10NO2.
A Study of the Effect of some of Salix emophylla Extracts as a Mulcicide to the snail Bulinus truncatus the Intermediate Host of Schistosoma Haematobiun
Section: Biology Keywords: Bulinus truncatus Salix acmophylla extracts used as a mulcicide to the snail Bulinus truncatus the intermediate host of Schistosoma haematobium in Iraq to know the acute toxicity of these extracts. The study showed acute toxicity of leaves and bark extracts to the snail and the leaves extracts less toxic than the bark extracts. LC50 of leaves extracts 20gm/1) was 7% while the LC50 bark extracts 10gm/l) was 8%.There was a relationship between the time of study showed the ability to use the bark and leaves extracts in the exposure and the concentrations of bark and leaves extracts . This control of schistosomiasis synthesis and Characterization of Some Lanthanidel (II) Ions Complexes with Anthranilic Acid and Amino Acid Phenylalanine
The Study of Antibacterial Effect of The Extraction of Linum Usitatissimum an Some Pathogenic Bacteria
Section: Biology Keywords: Linum Usitatissimum The present investigation aims to evaluate the antibacterial activity of hexane , methanol , ethanol and chloroform extracts of Al- Maha linseed culivar against some pathogenic miroorganism. including gram- positive (Bacillus subtilis and Staphylococcus aureus( gram - negative (Escherichia coli and Pseudomonas). The oil (hexane extract) showed significant inhibition activity compared to the other extracts against the tested microorganisms . The oil extract showed pronounced activity even in lowers (up to 0.5%) concentration against all tested microorganisms.Meanwhile. the gram - positive bacteria was found more sensitive than those of the gram -negative bacteria. The inhibition actions of the absolute ethanol extract of the seeds against the tested microorganisms were variable from ne species to the others Therefore, Staph aureus were more sensitive (the inhibition ratio was 92%) followed by P. aercginosa (91%), B. subtilis (89%). E, coli (84%). The absolute methanol and choroform extracts of the linseed gave the Same inhibition actions against the tested microorganisms . The higher sensitivity was observed on the P. aeroginose followed by Staph. aureus. E. coli and B. subilis,
The Effect of Ethyl Alcohol on Some Sperm Characterstics in Testis and Epididymis of Albino Rats
Section: Biology Keywords: Albino Rats This study has been carried out on 20 adult rats Ruttus norregicus. Their weights are 350-400 g in order to determine the effect of different concentration of ethyle alcohol 20%.30%.40% on some sperm charactristics of male reproductive system. The rats were divided into 4 groups with 5 animals for each group. The first group was considered as a control while the second group was treated by 5 ml of 20% ethvl alcohol for each animal an so on for other groups according to the concentration mentioned above respectively for 30 days through gastric ways .The results showed that there an average significant was decrease (p<0.05). In the percentage of sperm live and significant decrease (p<0.05) in sperm number while the sperm abnormality was a significantly increase in each of testes and epididymis with tow region head and tail of ethyl alcohol for long periods on some sperm charactristics of male. This study showed the range of effectiveness of consumption reproductive system activity of these animals rats which lead finally in decrasing the sexual
Effect of Banbar Extract on some Male Reproductive Organs of the Swiss Mice
Section: Biology Keywords: Banbar Extract This study has been carried out on the male Swiss mice to define he effect of banbar seed extract on the testis. epididymis and its side effects on spermatogenesis . The results showed a significant decrease (p<0.05) in the sertoli cells ,sperm numbers, secondary spermatocytes and sperm concentration. Histopathological study in testis showed necrosis, degeneration, detachement of germ cells ,vasodilatation and appearance of spermiophygus in the lumen of tubules. On the epididymus, there was hypoplasia, detachment of epithelium from basement membrane and macrophages in high percentages.
The Development of the Eye in the Binni Barbus Sharpeyii Gunther
Section: Biology Keywords: Binni Barbus Sharpeyii The embryonic development of the eye in Barbuc sharpyeii has been investigated. The first sign of the eye development represented by evagination on both sides of the forebrain anlage 1n embryo at (27) hrs. after fertilization. The primordium of differentiated to optic vesicle in embryo at (3 1) hrs. after fertilization and then part of the optic vesicle which in front the ectoderm investigation, the optic cup will formed in embryo at (40) after fertilization. The optic cup has a double layers wall, the internal laver represented the eye reticulum while the outer layer represented the pigmented layer. During the larva age of (72) hrs. after fertilization of the cornea and sclera primordiums appeared in larva age (96) hr. after fertilization of the reticular laver differentiate to the inner nuclear layer, outer nuclear layer, Inner plexiform layer, internal limiting membrane. In larva at (216 & 384) hr. after fertilization the reticular layer differentiate to the external limited membrane, Ganglion cell layer, Internal plexiform layer, outer plexiform layer, outer nuclear layer, cones and rods Zone. At the same age, the optic nerve which connects with the mesencephalon roof appears and the iris and ciliary body appear while the ‣ optic cup development completed. On the other hand, the first sign of the eye lens appears as a lens age (38) hrs, after fertilization placode from the ectoderm in front of the optic vesicle in embryo at embryo at (40) hrs, after fertilization, eye lens differentiate then it changes to lens vesicle in spherical shape complete lens in larva at (72) hrs, after fertilization, and it lakes cell attached with lens fbers. The anterior in larva at (96) hrs. after fertilization. surfaces of the lens appear as single row of epithelial. After the completion of the lens differentiation and situated in between the edges of the optice cup, and appearanee of complete sclera, iris, and ciliary body of the eye. The eye development completed and the eye becomes similar to that in an adult fish.
Study of Soluble Proteins(SP1 and SP2 ) Effect Extracted from Proteus mirabilis on Level of Specific Activity of Adenosine Deaminase in the Sera of Albino Rabbit
Section: Biology Keywords: Proteus mirabilis The aimed of present study is to shed some light on the immunological effect of soluble proteins extracted from Proteus mirabilis through employing the Specific Activity of Adenosine Deaminase : ADA The Soluble proteins; Spl and Sp2,was extracted by using the lysozyme enzyme The rabbits were divided into Three groups .the first one was injected with Spl, the second with Sp2 for four weeks .and the third one was control group. The results revealed that specific activity of Adenosine Deaminase was significantly increased in the second and fifth weeks of injected group with Sp1 compared with control group. The same effects of the Sp2 was observed in specific activity of Adenosine Deaminase. Therefore, the extracted soluble proteins had an effects on the immune response of the rabbits.
Evaluation of the Inhibitory Activity of Tea Tree Leaves Essential Oils Against Cryptococcus neoformans and Candida tropicalis
Section: Biology Keywords: tea tree, Melaleuca alternifolia, essential oil Tea tree oil, extracted from the leaves of1Melaleuca alternifolia, is `known for 1its antibacterial and antioxidant properties. This study aimed to investigate its chemical composition, antifungal activity against Candida tropicalis and Cryptococcus neoformans, and free radical1 scavenging capacity. Evaluating the inhibitory activity of tea tree essential1 oil1. Essential oil was obtained via steam 1distillation from air-dried 1leaves. Chemical constituents were analyzed using Gas chromatography-mass spectrum analysis. Antifungal1 activity was assessed1 by agar dilution assays at concentrations of 200–2,000 µg/ml. Antioxidant1 activity was determined using the DPPH assay within the 12.5–200 μL range. GC–MS analysis identified terpinen-4-ol1(18.3%), γ-terpinene (11.2%), α-pinene (7.2%), terpinolene (4.0%), sabinene (3.2%), and camphene (1.1%) as major components. Complete inhibition of both yeast species occurred at 500 ppm, establishing the minimum inhibitory concentration. Determination of antioxidant activity by 2,2-Diphenyl-1-picrylhydrazyl radical (DPPH) free radical scavenging assay revealed a dose-dependent increase in radical scavenging, with 50% inhibition achieved at approximately 22 μL of oil. Tea tree oil rich in terpinen-4-ol1 exhibits moderate antifungal activity and notable antioxidant potential. These findings support its potential1 use as a natural1 preservative or adjunct therapeutic agent. Further work is required1to optimize formulations and evaluate safety for clinical and industrial applications
Study of Nuclear Properties in the Exotic Mirror Nuclei ⁸B and ⁸Li
Section: Physics Keywords: Mirror nuclei, Symmetrized Woods, Saxon potential The ground-state properties like the nuclear densities and the root mean square radii of exotic mirror nuclei 8B and 8Li have been investigated using the Skyrme Hartree Fock and Symmetrized woods Saxon calculations Additionally, several nuclear observables have been investigated, including longitudinal elastic electron scattering form factors, binding energies, Coulomb displacement energies, magnetic dipole moments, and electric quadrupole moments. The results of the evaluation are contrasted with the experimental data that is currently available. It found that a common feature of the neutron and matter densities for the above-selected exotic nuclei is the long tail behavior. We assumed that both 8Li and 8B have a structure of the core nuclei 7Be and 7L plus a valence. It found that the structure of the valence one-neutron of 8Li and one-proton 8B is a pure 1p1/2 orbit. The elastic charge form factors of the above selected exotic nuclei are evaluated using the plane wave Born approximation and compared with those of their stable isotope 7Li and 10 B.
Section: Mathematics Keywords: Keywords:-cyclic operator, hypercyclic operator, diskcyclic operators, -hypercyclic operator, -diskcyclic operator. In this paper, we investigated the concept of ε-diskcyclic operators on a separable infinite-dimensional Hilbert space . A bounded linear operator is called -diskcyclic if there exists a vector in such that its disk orbit visits every cone of aperture . That is, for every non-zero vector in , there exist in where and in such that . Such a vector is then called an ε-diskcyclic vector for . We established several properties of ε-diskcyclic operators. In particular, we showed that every -diskcyclic operator is cyclic. Moreover, we examined the relationship between ε-diskcyclic vectors of and eigenvectors of the adjoint operator that cannot be orthogonal to each other. We also proved that if is a bounded linear operator on ; , then the direct sum ​ is -diskcyclic provided each is -diskcyclic. Finally, we presented a criterion for determining -diskcyclicity
Keywords:-cyclic operator, hypercyclic operator, diskcyclic operators, -hypercyclic operator, -diskcyclic operator.
Indoor Air Quality Detection inside Several Healthcare Units of Medical City in Baghdad
Section: Biology Keywords: Indoor air quality (IAQ), CO2, NO2, VOC, Temperature, Humidity Indoor air quality (IAQ) in healthcare facilities has become a critical area of research due to its significant influence on patient health, staff safety, and operational efficiency. This study examines the levels of various indoor air pollutants, including formaldehyde (HCHO), volatile organic compounds (VOCs), carbon dioxide (CO2), nitrogen dioxide (NO2), humidity, and temperature, in multiple healthcare units within the Medical City of Baghdad from September to the end of December of 2024 from different units, such as consulting units, waiting halls, corridors, and emergency rooms. Different IAQ monitoring systems that provide real-time measurements of these parameters were used in this study. The findings show that CO2 levels tend to be elevated, with a significant difference detected in Baghdad Teaching Hospital. NO2 concentrations were also monitored, which suggested a possible connection with specific activity within the healthcare settings. Formaldehyde and VOC levels were examined in order to understand their effects on respiratory health among patients and workers and showed that HCHO concentrations were consistently elevated in Sep.-Oct., while the Medical City Dialysis Center documented the highest VOC levels during these months. Humidity and temperature measurements were crucial in evaluating the effectiveness of ventilation systems and their impact on maintaining a healing environment. In conclusion, the Medical City Center was characterized by consistently elevated levels of temperature, formaldehyde, VOCs, and NO2, particularly during September and October, whereas the Children's Welfare Teaching Hospital exhibited the lowest pollutant concentrations alongside higher humidity. Ghazi Al-Hariri Hospital, in contrast, maintained relatively stable air quality indicators throughout the study period. This research demonstrates the importance of a regular IAQ assessment in healthcare settings to reduce health risks resulting from poor air quality. By identifying and addressing air quality issues proactively, healthcare providers can enhance patient safety, comply with established health standards, and improve staff working conditions.
Indoor air quality (IAQ), CO2, NO2, VOC, Temperature, Humidity
Effects of a Chelated Multi-Micronutrient Nanofertilizer on the Liver ofAlbino Rats: A Biochemical and Histopathological Assessment
Section: Biology Keywords: Nanofertilizers, Liver toxicity, Albino rats, Lactate Dehydrogenases (LDH), Total protein, Histopathology Nanofertilizers offer a promising solution to increase crop yields amid increasing population pressure. Yet there have been safety concerns about their use, particularly in challenging conditions. This work was designed to assess the toxicological effects of a chelated multi-micronutrient nanofertilizer on albino rats (Rattus norvegicus) as non-target organisms, focusing on the liver, which has important metabolic functions. Thirty-five animals were weighed and randomly divided into 5 groups (n=7). A negative control group was included, and four experimental groups (C1-C4) were given the test item. The dosing regimen for the experimental groups was 15 oral doses of nanofertilizer every other day for 29 days. All the groups were treated with different doses (62.5, 125, 250, and 500 mg/kg, respectively). Biochemical analyses revealed a statistically significant reduction in lactate dehydrogenase (LDH) levels in groups C2 through C4 (661.00 ± 181.67, 572.43 ± 187.62, and 577.86 ± 110.84 U/L, respectively) compared to both the control (919.86 ± 232.08 U/L) and C1 (880.00 ± 119.17 U/L) groups. In contrast, serum total protein concentrations exhibited a marked increase across all treatment groups (C1–C4: 74.36 ± 3.91, 68.49 ± 5.88, 70.47 ± 7.93, and 68.14 ± 3.84 g/L, respectively), relative to the control (59.29 ± 5.49 g/L). This rise in total protein was mainly due to a significant increase in serum globulin, whereas albumin showed a marked decrease. Histological examination showed dose-dependent hepatotoxicity in all treatment groups. These results indicated that a sub-lethal dose of this nanofertilizer has the potential to elicit observable hepatotoxicity, underscoring the need for careful application and further toxicological evaluations.
An Intrusion Detection for Internet of Medical Things Based on Deep Learning Techniques
Section: Computer Keywords: Internet of Medical Things (IoMT), Deep Learning (DL), Intrusion Detection System (IDS). The Internet of Medical Things (IoMT) has enhanced healthcare, but it is also vulnerable to cyber-attack. Reliable Intrusion Detection Systems (IDSs) are essential for data integrity and patient safety. The goal of this study is to design and evaluate deep learning IDSs in the form of DNNs and a hybrid GRU-DNN model for IoMT networks using the CICIoMT2024 dataset. The design of a standalone DNN model and a hybrid Gated Recurrent Unit–DNN (GRU-DNN) was also applied and compared. Both were trained and tested with various classes involving 2, 6, and 19 from the CICIoMT2024 datasets. The GRU-DNN model, in 19-class classification performance, achieved satisfactory results of accuracy, precision, and recall as 98.4%, 98.6%,98.4% and 98.2% respectively, for F1-score. The DNN model achieved 93.1 % accuracy for the same task. The model outperformed other models, such as LSTM and previous DNN models. The proposed hybrid GRU-DNN model exhibits promising results in being applicable to identifying intrusions in IoMT systems and seems to hold great promise for improving the security of real clinical networks
Internet of Medical Things (IoMT), Deep Learning (DL), Intrusion Detection System (IDS).
Magnetic Properties of Nano-Iron Oxide α-Fe2O3 Prepared in Green Chemistry from Capsicum Plant Extract
Section: Chemistry Keywords: Green chemistry, Iron oxide, Magnetic properties, Nanoparticles, Plant extract In this study, iron oxide nanoparticles (α-Fe₂O₃ NPs) were prepared using a readily available chili pepper plant extract from local markets. This study aims to evaluate the magnetic properties of α-Fe₂O₃ prepared in green chemistry from Capsicum plant extract. After several simple preparatory steps, such as washing and cutting, they were treated with an inorganic complex (potassium hexacyanoferrate) (K3[Fe(CN)₆]). In the first analytical step, the in vitro detection of the plant extract solution after reaction with the potassium hexacyanoferrate (III) complex revealed characteristic adsorption bands of the cyanide group, which disappeared upon complexation. The iron oxide NPs were characterized using various methods, including X-ray diffraction, energy-dispersive X-ray spectroscopy, scanning electron microscopy, transmission electron microscopy, and atomic force microscopy. The second step, testing the magnetic properties, was conducted using a vibrating sample magnetometer, which revealed strong magnetic properties. This novel method utilizes green chemistry to identify superparamagnetic properties.
Green chemistry, Iron oxide, Magnetic properties, Nanoparticles, Plant extract
Synthesis, Optical Energy Gap and Gas Sensing Properties of TiO2 Doped Cr2O3 Thin Films
Section: Physics Keywords: Thin films, Optical, Gas sensing, Cr2O3:TiO2, Laser ablation Thin films of Titanium dioxide (TiO2) doped Chromium oxide (Cr2O3) with a thickness of nm and a doping ratio of (0.2, 0.4, 0.6, 0.8)% employed on glass and n-type porous silicon substrates by using Pulsed laser ablation technique. A Cr2O3: TiO2/PSi heterojunction for a gas sensor device was synthesized with Nd: YAG laser with 1064nm wavelength with 500 pulses of laser energy 600mJ. The effect of the dopant concentration ratios on absorption coefficient ,optical energy gap and gas sensing properties such as sensitivity, responsivity and recovery times in the presence of 400ppm concentration of H2S gas, were studied and discussed. The doped samples showed increased absorption coefficient values with higher doping concentrations. The optical band gap ranged from 3.95 eV-3.71 eV for the pure and TiO2 doped Cr2O3 thin films. The optimum sensitivity was (166.24%) when the doping ratio of TiO2 was 0.6% when exposed to an H2S-reduced gas at an operating temperature of 100οC.
Synthesis and Characterization of Nanocomposites Derived from Grafted Carboxymethyl Cellulose
Section: Chemistry Keywords: Grafted carboxymethyl cellulose, Corrosion inhibition, Magnesium oxide nanoparticles, Nanocomposites Nanoparticle (NP)-based polymer nanocomposites have received significant attention in recent years, particularly those based on carboxymethyl cellulose (CMC). This study aims to synthesize and characterize of nanocomposites derived from grafted CMC. Because of the presence of polar functional groups, such as carboxyl and hydroxyl groups, in CMC, which contribute significantly to its strong adsorption capacity in metal structures, some research has indicated that this CMC is effective as a corrosion inhibitor, especially after being coated with NPs, as it protects metal surfaces from corrosion and helps them create a protective layer. In this study, nanocomposites derived from grafted CMC were synthesized. Initial CMC underwent a reaction with thionyl chloride in dimethylformamide (DMF) to produce CMC-Cl [I]. The CMC-Cl[I] reaction with various amines in DMF yields grafted CMC [II-X], which is subsequently blended with the natural biopolymer Chitosan to form blend polymers [XI-XIX]. Nanocomposites were synthesized through the interaction of blend polymers (grafted CMC/CS) with NPs such as magnesium oxide NPs (MgONPs), silver NPs (AgNPs), and gold NPs (AuNPs). The structures of the synthesized nanocomposites were characterized using FT-IR, 1H-NMR, FESEM, and TEM. An investigation into the corrosion inhibition of blended polymers and nanocomposites on mild steel in 0.1 M HCl was conducted using weight-loss analysis. The results show that nanocomposites have a higher inhibition rate than blended polymers. Grafted CMC/CS/AuNPs [XXXI] reached an inhibition rate of 97% against the corrosion of carbon steel.
Grafted carboxymethyl cellulose, Corrosion inhibition, Magnesium oxide nanoparticles, Nanocomposites