Growing Hadiths Ontology

Alamri, Salah International Journal of Computer ScienceNetwork S 2021 International journal of computer science and netw Vol.21 No.9

The modern technological era has brought about the Semantic Web. Ontologies are essential to achieve the vision of the Semantic Web. Ontologies enable machines to understand data. The Arabic Language currently does not have a significant presence on the Web. To achieve a comparable level of Arabic access to other important languages, further work is needed to build Arabic ontologies. A goal is to design and create a robust Arabic ontology that represents the concepts from a large and significant subset of Arabic. We use a source of Hadiths (prophet saying and deeds) from Riyadh As-Saliheen. Preliminary results are very promising.

Emotion Recognition in Arabic Speech from Saudi Dialect Corpus Using Machine Learning and Deep Learning Algorithms

Hanaa Alamri,Hanan S. Alshanbari International Journal of Computer ScienceNetwork S 2023 International journal of computer science and netw Vol.23 No.8

Speech can actively elicit feelings and attitudes by using words. It is important for researchers to identify the emotional content contained in speech signals as well as the sort of emotion that resulted from the speech that was made. In this study, we studied the emotion recognition system using a database in Arabic, especially in the Saudi dialect, the database is from a YouTube channel called Telfaz11, The four emotions that were examined were anger, happiness, sadness, and neutral. In our experiments, we extracted features from audio signals, such as Mel Frequency Cepstral Coefficient (MFCC) and Zero-Crossing Rate (ZCR), then we classified emotions using many classification algorithms such as machine learning algorithms (Support Vector Machine (SVM) and K-Nearest Neighbor (KNN)) and deep learning algorithms such as (Convolution Neural Network (CNN) and Long Short-Term Memory (LSTM)). Our Experiments showed that the MFCC feature extraction method and CNN model obtained the best accuracy result with 95%, proving the effectiveness of this classification system in recognizing Arabic spoken emotions.

Investigations on Electron Beam Evaporation of a Ball-milled Cu(In1−xGax)Se2 Powder

S. N. Alamri,H. F. Alsadi 한국물리학회 2015 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.67 No.2

CuIn1−xGaxSe (CIGS) powder was synthesized via the direct reaction of elemental copper, indium, gallium and selenium using ball milling. CIGS thin films were deposited onto glass substrates by using electron beam deposition at different substrate temperatures ranging from 200 ◦ C to 500 ◦ C. The effect of substrate temperature on the structure, surface morphology and optical properties of the films were investigated by using X-ray diffraction, energy dispersive X-ray analysis, atomic force microscopy and optical spectroscopy. Increasing the substrate temperature improved the crystallinity of the films; in addition, the (112) preferred orientation became stronger, the grain size increased from 222 ˚A to 414 ˚A and the unit cell volume increased from 350.4 ˚A3 to 384.1 ˚A3. The stoichiometry of the films varied with the substrate temperature. The optical properties, band gap and refractive index were reduced as the substrate temperature was increased.

Controllable Biogenic Synthesis of Intracellular Silver/Silver Chloride Nanoparticles by Meyerozyma guilliermondii KX008616

( Saad A. M. Alamri ),( Mohamed Hashem ),( Nivien A. Nafady ),( Mahmoud A. Sayed ),( Ali M. Alshehri ),( Gamal A. El-shaboury ) 한국미생물생명공학회(구 한국산업미생물학회) 2018 Journal of microbiology and biotechnology Vol.28 No.6

Intracellular synthesis of silver/silver chloride nanoparticles (Ag/AgCl-NPs) using Meyerozyma guilliermondii KX008616 is reported under aerobic and anaerobic conditions for the first time. The biogenic synthesis of Ag-NP types has been proposed as an easy and cost-effective alternative for various biomedical applications. The interaction of nanoparticles with ethanol production was mentioned. The purified biogenic Ag/AgCl-nanoparticles were characterized by different spectroscopic and microscopic approaches. The purified nanoparticles exhibited a surface plasmon resonance band at 419 and 415 nm, confirming the formation of Ag/AgCl-NPs under aerobic and anaerobic conditions, respectively. The planes of the cubic crystalline phase of the Ag/AgCl-NPs were confirmed by X-ray diffraction. Fourier-transform infrared spectra showed the interactions between the yeast cell constituents and silver ions to form the biogenic Ag/AgCl-NPs. The intracellular Ag/AgCl-NPs synthesized under aerobic condition were homogenous and spherical in shape, with an approximate particle size of 2.5-30nm as denoted by the transmission electron microscopy (TEM). The reaction mixture was optimized by varying reaction parameters, including temperature and pH. Analysis of ultrathin sections of yeast cells by TEM indicated that the biogenic nanoparticles were formed as clusters, known as nanoaggregates, in the cytoplasm or in the inner and outer regions of the cell wall. The study recommends using the biomass of yeast that is used in industrial or fermentation purposes to produce Ag/AgCl-NPs as associated by-products to maximize benefit and to reduce the production cost.

Breast Cancer Classification Using Convolutional Neural Network

Alshanbari, Eman,Alamri, Hanaa,Alzahrani, Walaa,Alghamdi, Manal International Journal of Computer ScienceNetwork S 2021 International journal of computer science and netw Vol.21 No.6

Breast cancer is the number one cause of deaths from cancer in women, knowing the type of breast cancer in the early stages can help us to prevent the dangers of the next stage. The performance of the deep learning depends on large number of labeled data, this paper presented convolutional neural network for classification breast cancer from images to benign or malignant. our network contains 11 layers and ends with softmax for the output, the experiments result using public BreakHis dataset, and the proposed methods outperformed the state-of-the-art methods.

Recent advances in the synthesis and applications of magnetic polymer nanocomposites

Abdullatif Jazzar,Haleema Alamri,Yassine Malajati,Remi Mahfouz,Mohamed Bouhrara,Aziz Fihri 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.99 No.-

The rapid growth of the global population, urbanization, and environmental awareness resulted in asignificant increase of the demand for clean water. As a result, water pollution associated with industrialactivities became a major global concern, and organic pollutants in addition to heavy metals are the mainculprits when it comes to industrial waste. Significant advancements were achieved in the last twodecades in wastewater purification techniques, and among them, the use of solid adsorbents is probablythe process that attracts the most scientific interests. This technique has the advantage of being simpleand efficient while remaining cost-effective. This review provides an overview on the different synthesismethods of magnetic particles and corresponding polymer nanocomposites, as well as recent advances inthe use of these adsorbents in water decontamination. The deficiencies and challenges pertaining to theapplication of this type of adsorbent materials at large industrial scales are highlighted andrecommendations for future research focus areas are suggested.

The Exoscope versus operating microscope in microvascular surgery: A simulation non-inferiority trial

Pafitanis, Georgios,Hadjiandreou, Michalis,Alamri, Alexander,Uff, Christopher,Walsh, Daniel,Myers, Simon Korean Society of Plastic and Reconstructive Surge 2020 Archives of Plastic Surgery Vol.47 No.3

Background The Exoscope is a novel high-definition digital camera system. There is limited evidence signifying the use of exoscopic devices in microsurgery. This trial objectively assesses the effects of the use of the Exoscope as an alternative to the standard operating microscope (OM) on the performance of experts in a simulated microvascular anastomosis. Methods Modus V Exoscope and OM were used by expert microsurgeons to perform standardized tasks. Hand-motion analyzer measured the total pathlength (TP), total movements (TM), total time (TT), and quality of end-product anastomosis. A clinical margin of TT was performed to prove non-inferiority. An expert performed consecutive microvascular anastomoses to provide the exoscopic learning curve until reached plateau in TT. Results Ten micro sutures and 10 anastomoses were performed. Analysis demonstrated statistically significant differences in performing micro sutures for TP, TM, and TT. There was statistical significance in TM and TT, however, marginal non-significant difference in TP regarding microvascular anastomoses performance. The intimal suture line analysis demonstrated no statistically significant differences. Non-inferiority results based on clinical inferiority margin (Δ) of TT=10 minutes demonstrated an absolute difference of 0.07 minutes between OM and Exoscope cohorts. A 51%, 58%, and 46% improvement or reduction was achieved in TT, TM, TP, respectively, during the exoscopic microvascular anastomosis learning curve. Conclusions This study demonstrated that experts' Exoscope anastomoses appear non-inferior to the OM anastomoses. Exoscopic microvascular anastomosis was more time consuming but end-product (patency) in not clinically inferior. Experts' "warm-up" learning curve is steep but swift and may prove to reach clinical equality.

Assessment of antibacterial cellulose nanocomposites for water permeability and salt rejection

Sher Bahadar Khan,Khalid A. Alamry,Elham N. Bifari,Abdullah M. Asiri,Muhammad Yasir,Lassaad Gzara,Rehan Zulfiqar Ahmad 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.24 No.-

Anti-bacterial nanocomposites (NC1–NC4) based on cellulose acetate were prepared by dispersing ZnO nanofillers in the cellulose acetate matrix. Anti-bacterial nanocomposites were structurally and morphological examined by XRD (X-ray powder diffraction), FESEM (field emission scanning electron microscopy), and FT-IR (Fourier transform infrared) spectroscopy. All the spectroscopic techniques suggested that nanocomposites are successfully synthesized. All the nanocomposites showed antibacterial activity which increased as a function of zinc oxide. Further the selectivity of anti-bacterial nanocomposites was investigated toward different metal ions, including Zn2+, Cd2+, Pb2+, Mn2+, Ni2+, Fe2+, Al3+, Sb3+, and Sr3+. The selectivity data suggests that nanocomposites are more selective toward Fe2+. NC1 displayed highest uptake aptitude for Fe2+ with highest distribution coefficient of 7549.123 mL g1. Therefore, NC1 was subjected to water permeability to explore the role of antibacterial nanocomposite as membrane for water purification. The results suggest that these materials are possibly appropriate for water treatments.

Exogenous Application of Nitric Oxide and Spermidine Reduces the Negative Effects of Salt Stress on Tomato

Manzer H. Siddiqui,Saud A. Alamri,Mutahhar Y. Al-Khaishany,Mohammed A. Al-Qutami,Hayssam M. Ali,Hala AL-Rabiah,Hazem M. Kalaji 한국원예학회 2017 Horticulture, Environment, and Biotechnology Vol.58 No.6

Due to increasing soil salinity, the world agricultural output is being threatened by the shrinking area offertile land. In the present study, we explored the interactive roles of nitric oxide (NO; 100 μM) and spermidine (SP;200 μM) in ameliorating the effects of salt stress (NaCl; 100 mM) in tomato (Solanum lycopersicum L. var. FiveStar) seedlings. NaCl stress reduced shoot and root length, shoot and root fresh weight, shoot and root dry weightplant-1 and leaf area leaf-1. NaCl stress also suppressed the biosynthesis of photosynthetic pigments (Chlorophyll aand b) and increased proline (Pro) content, membrane damage and lipid peroxidation by inducing reactive oxygenspecies (H2O2 and O2•−) generation in roots and leaves, as well as electrolyte leakage (EL) and malondialdehyde(MDA) accumulation in leaves. However, applying NO and/or SP increased the activities of catalase, peroxidase,superoxide dismutase, glutathione reductase and ascorbate peroxidase and increased photosynthetic pigment (chlorophylla and b) and Pro accumulation, as well as reducing H2O2, O2•− and MDA content and EL, under salt stress. Whentomato plants were treated with NO and SP simultaneously, NO signaling was further enhanced, which was confirmedby the addition of cPTIO [2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide; NO scavenger].

Recent development in search for alternative low global warming potential refrigerants: A review

M. U. Siddiqui,Amro Owes,F. G. Alamri,Farooq Saeed 대한설비공학회 2020 International Journal Of Air-Conditioning and Refr Vol.28 No.3

Conventional CFC type refirigerants were used Montreal Protocol which stated that CFC refirigerants cause ozon depletion and should be replaced with alternative refrigerants. The alternative refrigerants are safe for ozone but they have comparatively high flammability, toxicity and glabal worming potential. Thus thet need careful handling. In Tokyo Protocol, it was stated that the currently used refigerants with high global warming potential. This paper conmprehensively reviews those recent studies that focused over the possible replacement of currently in-use refrigerant with a comparatively more environment-friendly alternative refrigerant. Initially the progression of refrigerants through different generations has been described and discussed. A list of currently in-use refrigerants has been presented. Then, the scientific development for the replacement of lised refrigerants are thoroughly reviewed and critically analyzed. From the comprehensive review, it was found that R1234yf has the most potential to be a suitable low-flammale replacement for R134a for domestic refrigeration and automotive air-conditioning systems. Also, R32 has the most potential to be a suitable alternative of R410A.