Microstructural,Hyperfine, and Magnetic Properties of FeSiBCuNb Deposits     

S. Alleg  L. Hamza  M. Ibrir  S. Souilah  W. Tebib  N. E. Fenineche  J. M. Greneche 《Journal of Superconductivity and Novel Magnetism》2015,28(8):2431-2439

  相似文献   

    

Hamza Bozkir  Yeliz Tekgül 《Journal of Food Processing and Preservation》2022,46(6):e15902

  相似文献   

    

Hamza Alasalvar  Gamze Kocer Alasalvar  Zeliha Yıldırım 《Journal of Food Processing and Preservation》2022,46(5):e16644

  相似文献   

    

Hamza Boussebha  Nurşen Mutlu  Nuray Canikoğlu  Ali O. Kurt 《International Journal of Applied Ceramic Technology》2022,19(6):2967-2978

Carbothermal reduction and nitridation (CRN) method, used for the synthesis of nitride-based ceramic powders, is an effective and economic technique that has been widely investigated. In this study, a CRN-based novel approach, denominated as dynamic/thermochemical method (DTM), has been used to synthesize submicron high-purity aluminum nitride (AlN) powders with equiaxed-sized particles. DTM is a modified CRN method in which the reaction takes place in a controlled atmosphere using a rotary tube furnace, allowing the synthesis of fine particle-size powders in a relatively short time. Following the DTM process, homogeneous submicron AlN powders were synthesized from a mixture of aluminum hydroxide (Al(OH)₃) and carbon black at 1450°C for 1.5 h. Furthermore, dynamic synthesis parameters, as well as the use of ammonia (NH₃) and propane (C₃H₈) gas mixtures instead of carbon black and nitrogen, were investigated.  相似文献   

    

Hamza Hammami  Mohammad S. Obaidat  Sadok Ben Yahia 《International Journal of Communication Systems》2020,33(15)

The smart grid is a new and promising technology integrating new information and communication technologies to improve the distribution and consumption of electricity between energy suppliers and their end customers. However, this advanced solution is facing a serious security problem as regards the interception and falsification of power consumption data, hence generating falsified electricity consumption bills. This issue of security needs to be promptly and efficiently handled. Clearly, it is of paramount importance to have a security mechanism to avoid such losses. Our work focuses on this issue. It particularly concerns the development of a security mechanism to ensure a completely secure communication between energy suppliers and their consumers while preserving the privacy of end customers in terms of protection of their personal information including their identities. The experimental results underscore that our solution outperforms those of the literature in terms of computation cost and robustness against various types of attacks.  相似文献   

    

Hamza Alrababah;Hena Iqbal;Muhammad Adnan Khan; 《国际智能系统杂志》2024,2024(1):9949510

The expanding importance of technology, particularly mobile banking, in the financial industry, is examined in this literature review, as well as the crucial role that cybersecurity knowledge plays in protecting online transactions. Users now have the flexibility to conduct payments whenever and wherever they wish thanks to the advent of mobile banking. Further consumer behavior study is necessary due to difficulties with its acceptability. Given the hazards involved in online and mobile banking, cybersecurity is revealed as a critical component. Users’ actions might lead to financial losses since they represent security concerns. The evaluation places a strong emphasis on the necessity of increasing user cybersecurity knowledge and comprehension. Wireless banking is still in its early phases and needs more study on consumer acceptability and behavior despite the greater accessibility of technology. Furthermore, the research study emphasizes the socio-technical difficulties governments encounter in tackling cybersecurity and emphasizes how urgently better readiness is needed in the face of cyberwarfare threats. It investigated how user behavior in mobile banking in particular geographic areas, such as Thailand, relates to cyberspace knowledge and consciousness. The assessment emphasizes the value of technology in banking, the difficulties associated with cybersecurity, and the demand for increased customer knowledge and comprehension to ensure safe digital transactions. To conduct this research activity, standardized questionnaires are used. The technique employed to get this data was convenience sampling. The statistics collection size stood at 500 and was gathered from males as well as females of all ages, belonging to diverse revenue groups, and numerous professional backgrounds. The survey finds that even while these services are becoming widespread in the UAE, customers’ awareness and understanding of cyber security are still insufficient. Users frequently underrate the security dangers involved with online transactions, which might create openings. Additionally, the study underlines the necessity of more effective training programs and efforts to raise mobile banking consumers’ knowledge of cybersecurity issues. It also emphasizes how crucial it is to build cybersecurity precautions into the structure and functioning of services for mobile banking. The purpose of this study was to examine the demographic characteristics of consumers and companies (online transactions) that use mobile banking apps to get special advantages. It was shown that people’s satisfaction with mobile banking applications was influenced by a number of criteria, including age, employment, income, marital status, and educational attainment. Younger consumers, such as students and recent graduates, are seen to be happy than customers of various ages and vocations, and males are thought to be happier than women.  相似文献   

    

Hamza Elsayed Ahmad Mohamed;Ali Talha Khalil;Khaoula Hkiri;Muhammad Ayaz;Assad Usman;Abdul Sadiq;Farhat Ullah;Muhammad Arif Khan;Ikram Ullah;Malik Maaza; 《Microscopy research and technique》2024,87(12):2829-2841

Herein we described the biofabrication of samarium oxide nanoparticles (HT-Sm2O3 NPs) by applying the aqueous fruit extract of Hyphaene thebaica was utilized as an eco-friendly chelating agent. The prepared NPs were subjected to various physicochemical properties and potential in biomedical applications. X-ray Diffraction (XRD) pattern revealed sharp peaks that corroborated with the Joint Committee on Powder Diffraction Standards (JCPDS) card no. 00–042-1464. Crystallite size obtained from Debye–Scherrer approximation and Williamson–Hall (W–H) plot was 28.73 and 69.3 nm, respectively. Optical bandgap was calculated by employing Kubelka–Munk (K–M) function and was found to be ~4.58 eV. Raman shift was observed at 121, 351, 424—, and 561 cm−1. Photoluminescence (PL) spectra revealed two major peaks positioned at 360 and 540 nm. The high-resolution transmission electron microscopy (HR-TEM) analysis of HT-Sm2O3 nanoparticles (NPs) showed that they predominantly have spherical to cuboidal shapes. Additionally, the selected area electron diffraction (SAED) pattern presented spotty rings, indicating a high level of crystallinity in these NPs. The potential nanomedicine applications were studied using diverse bioassays using different treatments. The antioxidant activity demonstrated 45.71% ± 1.13% inhibition at 1000 μg/mL. Brine shrimp lethality assay revealed the highest cytotoxicity of 46.67% ± 3.33% at 1000 μg/mL and LC50 value of 1081 μg/mL. HT-Sm2O3 NPs exhibited inhibition of angiogenesis (20.41% ± 1.18%) at of 1000 μg/mL. MTT assay results indicated that HT-Sm2O3 NPs exhibit inhibitory effects on cell lines. Specifically, these NPs showed an IC50 value of 104.6 μg/mL against 3T3 cells. Against MCF-7 cells, the NPs demonstrated an IC50 value of 413.25 μg/mL. Additionally, in the inhibition of acetylcholinesterase (AChE), the newly synthesized NPs showed an IC50 value of 320 μg/mL. The antidiabetic assessment through α-glucosidase and α-amylase inhibition assays revealed, an IC50 value of 380 μg/mL for α-glucosidase and 952 μg/mL for α-amylase was calculated. Overall, our study suggested that the Sm2O3 NPs possess moderate anticancer, cholinesterase inhibition, and antidiabetic potential, however, needs further assessment.  相似文献   

    

Tajamul Hussain  Omar S. Al‐Attas  Salman Alamery  Mukhtar Ahmed  Hamza A. M. Odeibat  Salman Alrokayan 《Journal of Food Biochemistry》2019,43(8)

  相似文献   

    

Beta Bdi  Patrick M. Pilz  Lilla Mrtha  Miriam Lang  Ouafa Hamza  Mikls Fagyas  Petra L. Szab  Dietmar Abraham  Attila Tth  Bruno K. Podesser  Attila Kiss  Zoltn Papp 《International journal of molecular sciences》2021,22(20)

Post-ischemic left ventricular (LV) remodeling and its hypothetical prevention by repeated remote ischemic conditioning (rRIC) in male Sprague–Dawley rats were studied. Myocardial infarction (MI) was evoked by permanent ligation of the left anterior descending coronary artery (LAD), and myocardial characteristics were tested in the infarcted anterior and non-infarcted inferior LV regions four and/or six weeks later. rRIC was induced by three cycles of five-minute-long unilateral hind limb ischemia and five minutes of reperfusion on a daily basis for a period of two weeks starting four weeks after LAD occlusion. Sham operated animals served as controls. Echocardiographic examinations and invasive hemodynamic measurements revealed distinct changes in LV systolic function between four and six weeks after MI induction in the absence of rRIC (i.e., LV ejection fraction (LVEF) decreased from 52.8 ± 2.1% to 50 ± 1.6%, mean ± SEM, p < 0.05) and in the presence of rRIC (i.e., LVEF increased from 48.2 ± 4.8% to 55.2 ± 4.1%, p < 0.05). Angiotensin-converting enzyme (ACE) activity was about five times higher in the anterior LV wall at six weeks than that in sham animals. Angiotensin-converting enzyme 2 (ACE2) activity roughly doubled in post-ischemic LVs. These increases in ACE and ACE2 activities were effectively mitigated by rRIC. Ca²⁺-sensitivities of force production (pCa₅₀) of LV permeabilized cardiomyocytes were increased at six weeks after MI induction together with hypophosphorylation of 1) cardiac troponin I (cTnI) in both LV regions, and 2) cardiac myosin-binding protein C (cMyBP-C) in the anterior wall. rRIC normalized pCa₅₀, cTnI and cMyBP-C phosphorylations. Taken together, post-ischemic LV remodeling involves region-specific alterations in ACE and ACE2 activities together with changes in cardiomyocyte myofilament protein phosphorylation and function. rRIC has the potential to prevent these alterations and to improve LV performance following MI.  相似文献   

Species-Specific Differences in Aryl Hydrocarbon Receptor Responses: How and Why?     

Xiaoting Xu  Xi Zhang  Yuzhu Yuan  Yongrui Zhao  Hamza M. Fares  Mengjiao Yang  Qing Wen  Reham Taha  Lixin Sun 《International journal of molecular sciences》2021,22(24)

  相似文献