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Biochar alleviates metal toxicity and improves microbial community functions in a soil co-contaminated with cadmium and lead

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Biochar 2021年第4期3卷 485-498页

作者： Nahid Azadi fayez Raiesi Faculty of Agriculture Department of Soil Science and EngineeringShahrekord UniversityP.O.Box 115ShahrekordIran

Soil amendment with biochar alleviates the toxic effects of heavy metals on microbial functions in single-metal contaminated ***,it is unclear how biochar application would improve microbial activity and enzymatic activity in soils co-polluted with toxic *** present research aimed at determining the response of microbial and biochemical attributes to addition of sugarcane bagasse biochar(SCB)in cadmium(Cd)-lead(Pb)co-contaminated ***(400 and 600°C)decreased the available concentrations of Cd and Pb,increased organic carbon(OC)and dissolved organic carbon(DOC)contents in *** decrease of metal availability was greater with 600°C SCB than with 400°C SCB,and metal immobilization was greater for Cd(16%)than for Pb(12%)in co-spiked soils amended with low-temperature *** application improved microbial activity and biomass,and enzymatic activity in the soils co-spiked with metals,but these positive impacts of SCB were less pronounced in the co-spiked soils than in the single-spiked *** decreased the adverse impacts of heavy metals on soil properties largely through the enhanced labile C for microbial assimilation and partly through the immobili-zation of *** analysis further confirmed that soil OC was overwhelmingly the dominant driver of changes in the properties and quality of contaminated soils amended with *** promotion of soil microbial quality by the low-temperature SCB was greater than by high-temperature SCB,due to its higher labile C *** findings showed that SCB at lower temperatures could be applied to metal co-polluted soils to mitigate the combined effects of metal stresses on microbial and biochemical functions.

关键词： Bagasse biochar Microbial activity Soil enzymes Metal co-contamination

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A Fractional Fourier Based Medical Image Authentication Approach

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Computers, Materials & Continua 2022年第2期70卷 3133-3150页

作者： fayez Alqahtani Mohammed Amoon Walid El-Shafai Department of Software Engineering College of Computer and Information SciencesKing Saud UniversityRiyadh11451Saudi Arabia Department of Computer Science Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia Department of Computer Science and Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt

Patient medical information in all forms is crucial to keep private and secure,particularly when medical data communication occurs through insecure ***,there is a bad need for protecting and securing the color medical images against impostors and *** this paper,an optical medical image security approach is *** is based on the optical bit-plane Jigsaw Transform(JT)and Fractional Fourier Transform(FFT).Different kernels with a lone lens and a single arbitrary phase code are exploited in this security approach.A preceding bit-plane scrambling process is conducted on the input color medical images prior to the JT and FFT processes to accomplish a tremendous level of robustness and *** confirm the efficiency of the suggested security approach for secure color medical image communication,various assessments on different color medical images are examined based on different statistical security ***,a comparative analysis is introduced between the suggested security approach and other conventional cryptography *** simulation outcomes acquired for performance assessment demonstrate that the suggested security approach is highly *** has excellent encryption/decryption performance and superior security results compared to conventional cryptography approaches with achieving recommended values of average entropy and correlation coefficient of 7.63 and 0.0103 for encrypted images.

关键词： Medical image security encryption JT FFT cryptosystem

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Shared Standard Setting in the Public Interest： A Strong Model

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中国注册会计师 2014年第8期 29-30页

作者： fayez Choudhury IFAC

The last two decades have been a definitive era in the evolution of the accountancy *** the wake of major corporate scandals at the turn of the century,an international public debate arose on the need for more effecti... 详细信息

关键词：会计师会计学会计准则注册会计师

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Using the stent-in-stent technique to drain the right hepatic duct,passing across a 7-year-old obstructed spiral self-expandable metal stent of the left hepatic duct

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Gastroenterology Report 2020年第6期8卷 476-478,I0003页

作者： Ahmad Alhamid Ziad Aljarad fayez Sandouk Internal Medicine Faculty of MedicineUniversity of AleppoAleppoSyria Department of Gastroenterology Aleppo University HospitalAleppoSyria Gastroenterology Specialty Center DamascusSyria

Introduction Endoscopic stent implantation is a widely used and accepted palliative procedure for non-operated malignant hilar biliary obstruction[1].Several studies have demonstrated that selfexpandable metal stents(SEMS)are superior to plastic stents(PS)[2,3].However,it is still debated whether bilateral stenting is better than unilateral stenting[2,3].Park et *** the literature and clarified that bilateral stenting is favored,due to better clinical outcomes and fewer late complications[2].It is technically challenging to place two SEMS beside each other in order to do bilateral stenting[1,2].For the above considerations,a new technique called‘stent-in-stent’(SIS)has been developed[1].In this method,a Y-stent with a central open mesh allows a second stent to be introduced into the contralateral bile duct[1],resulting in a technical success ranging from 80%to 100%[2].

关键词：右肝管 obstruction

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The effects of biochar on soil nutrients status,microbial activity and carbon sequestration potential in two calcareous soils

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Biochar 2021年第1期3卷 105-116页

作者： Allahyar Khadem fayez Raiesi Hossein Besharati Mohammad Ali Khalaj Department of Soil Science and Engineering Faculty of AgricultureShahrekord UniversityP.O.Box 115ShahrekordIran Agricultural Research Education and Extension Organization(AREEO)Soil and Water Research InstituteKarajIran Ornamental Plant Research Center(OPRC) Horticultural Science Research Institute(HSRI)Agricultural ResearchEducation and Extension Organization(AREEO)MahallatIran

Biochar as an organic amendment improves soil attributes,with a potentially significant effect on soil chemical fertility and *** main objective of this study was to quantify the effect of biochar addition on nutrients,carbon sequestra-tion and microbial activity and understand the mechanisms of controlling biochar effects in calcareous *** residue biochars produced at 200,400 and 600℃ were added at 5 and 10 g kg^(−1)rates to sandy loam and clayey texture calcareous *** soil properties measured were pH and electrical conductivity(EC),plant-available potassium(K)and available phosphorus(P),total nitrogen(TN),C sequestration;and the fluorescein diacetate(FDA)hydrolysis *** of raw material and biochars increased pH(0.15-0.46 units),EC(0.14-0.38 dS m^(−1)),TN(63-120%),K(12-41%)and FDA activity(27-280%),but tended to decrease plant-available P(23-86%).Increasing pyrolysis temperature increased soil C pool index(CPI),but decreased the FDA and the changes depended largely upon the application rate and soil *** positive effects of biochar addition and its pyrolysis temperature on soil C sequestration potential were more pronounced at high than low application rate and in sandy loam than clayey ***,the effect of biochar addition and pyrolysis temperature on the FDA activity was higher at high than low application rates,but lower in sandy loam than clayey *** biochar application may successfully improve soil processes and attributes and have a high potential for C seques-tration,its effects are controlled by soil texture,pyrolysis temperature and application rate.

关键词： Biochar amendment Chemical composition Soil fertility Microbial functions Arid soils

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Rheological and Morphological Characterization of Modified Bitumen with Cup Lump Rubber

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Journal of Renewable Materials 2023年第5期11卷 2433-2451页

作者： Mohammed Albuaymi Suleiman Abdulrahman fayez Alanazi Hani Alanazi Musa Adamu Department of Civil and Environmental Engineering College of EngineeringMajmaah UniversityAl-Majmaah11952Saudi Arabia Department of Civil Engineering Kebbi State University of Science and TechnologyAlieroKebbiNigeria School of Civil Engineering Universiti Teknologi MalaysiaJohor Bahru81310Malaysia Department of Civil Engineering College of EngineeringJouf UniversitySakaka72388Saudi Arabia Engineering Management Department College of EngineeringPrince Sultan UniversityRiyadh11586Saudi Arabia Department of Civil Engineering Bayero UniversityKanoPMB 3011Nigeria

Pure bitumen is not suitable for heavy traffic loads;hence modifiers are used to improve the bitumen ***,cup lump rubber(CLR)has become a preferred modifier due to its outstanding performance and less ***,little is known about the interactions between CLR and ***,this study investigates the behavior of bitumen with *** percentages of CLR(2.5%,5.0%,7.5%,and 10.0%by weight of bitumen)were used to modify conventional 60/70 penetration grade *** modified bitumen was evaluated through different laboratory testing such as dynamic shear rheometer,rotational viscosity,softening point,bending beam rheometer,ductility,and elastic *** testing results show that the addition of CLR increased the bitumen’s rutting resistance by 3 PG grades at high *** low pavement temperatures,the cup lump rubber modified bitumen(CMB)can withstand up to−34℃.Fourier Transform Infrared(FTIR)analysis shows that the Aromaticity index at 1600 cm^(−1) rose as the CLR percentage increased,indicating the formation of a binder with a compact *** is expected to improve the elasticity of bitumen throughπ-π*** Force Microscopy(AFM)results showed the Catana phase increased in size and quantity at 5.0%and 7.5%CLR *** contact angle measurement revealed that the binders are hydrophobic and tend to repel the dropped water on the bitumen surface.

关键词： Cup lump rubber polymer modified bitumen hydrophobicity natural rubber

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Vision transformer architecture and applications in digital health:a tutorial and survey

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Visual Computing for Industry,Biomedicine,and Art 2023年第1期6卷 171-198页

作者： Khalid Al-hammuri fayez Gebali Awos Kanan Ilamparithi Thirumarai Chelvan Electrical and Computer Engineering University of VictoriaVictoria V8W 2Y2Canada Computer Engineering Princess Sumaya University for TechnologyAmman 11941Jordan

The vision transformer (ViT) is a state-of-the-art architecture for image recognition tasks that plays an important role in digital health applications. Medical images account for 90% of the data in digital medicine applications. This article discusses the core foundations of the ViT architecture and its digital health applications. These applications include image segmentation, classification, detection, prediction, reconstruction, synthesis, and telehealth such as report generation and security. This article also presents a roadmap for implementing the ViT in digital health systems and discusses its limitations and challenges.

关键词： Vision transformer Digital health Telehealth Artificial intelligence Medical imaging

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A Novel Secure Scan Design Based on Delayed Physical Unclonable Function

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Computers, Materials & Continua 2023年第3期74卷 6605-6622页

作者： Weizheng Wang Xingxing Gong Xiangqi Wang Gwang-jun Kim fayez Alqahtani Amr Tolba School of Computer and Communication Engineering Changsha University of Science and TechnologyChangsha410114China College of Information Science and Engineering Hunan Women’s UniversityChangsha410138China College of Mathematics and Computational Science Hunan First Normal UniversityChangsha410138China Department of Computer Engineering Chonnam National UniversityGwangju61186Korea Software Engineering Department College of Computer and Information SciencesKing Saud UniversityRiyadh12372Saudi Arabia Computer Science Department Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia

The advanced integrated circuits have been widely used in various situations including the Internet of Things,wireless communication,*** its manufacturing process exists unreliability,so cryptographic chips must be rigorously *** to scan testing provides high test coverage,it is applied to the testing of cryptographic integrated ***,while providing good controllability and observability,it also provides attackers with a backdoor to steal *** the text,a novel protection scheme is put forward to resist scan-based attacks,in which we first use the responses generated by a strong physical unclonable function circuit to solidify fuseantifuse structures in a non-linear shift register(NLSR),then determine the scan input code according to the configuration of the fuse-antifuse structures and the styles of connection between the NLSR cells and the scan *** the key is right,the chip can be tested normally;otherwise,the data in the scan chain cannot be propagated normally,it is also impossible for illegal users to derive the desired scan *** proposed technique not only enhances the security of cryptographic chips,but also incurs acceptable overhead.

关键词： Cryptographic chips scan testing scan-based attacks hardware security PUF

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Visibility Enhancement of Scene Images Degraded by Foggy Weather Condition: An Application to Video Surveillance

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Computers, Materials & Continua 2021年第9期68卷 3465-3481页

作者： Ghulfam Zahra Muhammad Imran Abdulrahman M.Qahtani Abdulmajeed Alsufyani Omar Almutiry Awais Mahmood fayez Eid Alazemi Department of Computer Science Shaheed Zulfikar Ali Bhutto Institute of Science and TechnologyIslamabad44000Pakistan Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia College of Applied Computer Science King Saud University(Almuzahmiyah Campus)Riyadh11543Saudi Arabia Department of Computer Science and Information Systems College of Business StudiesPAAET12062Kuwait

:In recent years,video surveillance application played a significant role in our daily *** taken during foggy and haze weather conditions for video surveillance application lose their authenticity and hence reduces the *** reason behind visibility enhancement of foggy and haze images is to help numerous computer and machine vision applications such as satellite imagery,object detection,target killing,and *** remove fog and enhance visibility,a number of visibility enhancement algorithms and methods have been proposed in the ***,these techniques suffer from several limitations that place strong obstacles to the real world outdoor computer vision *** existing techniques do not perform well when images contain heavy fog,large white region and strong atmospheric *** research work proposed a new framework to defog and dehaze the image in order to enhance the visibility of foggy and haze *** proposed framework is based on a Conditional generative adversarial network(CGAN)with two networks;generator and discriminator,each having distinct *** generator network generates fog-free images from foggy images and discriminator network distinguishes between the restored image and the original fog-free *** are conducted on FRIDA dataset and haze *** assess the performance of the proposed method on fog dataset,we use PSNR and SSIM,and for Haze dataset use e,r−,andσas performance *** results shows that the proposed method achieved higher values of PSNR and SSIM which is 18.23,0.823 and lower values produced by the compared method which are 13.94,0.791 and so *** results demonstrated that the proposed framework Has removed fog and enhanced the visibility of foggy and hazy images.

关键词： Video surveillance degraded images image restoration transmission map visibility enhancement

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Specialty Lipids in Health and Disease

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Food and Nutrition Sciences 2013年第9期4卷 63-70页

作者： fayez Hamam Department of Pharmacology and Toxicology College of Pharmacy Taif University Taif Saudi Arabia

Lipids possess a wide range of biological activities in plants, animals and humans. They also serve as important components of our daily diet and provide both energy and essential fatty acids;they also act as carriers of fat-soluble vitamins and help in their absorption. Lipids are crucial as a heating medium for food processing and affect the texture, mouth feel and flavour of foods. Structured lipids (SL) are triacylglycerols (TAG) modified to alter the fatty acid composition and/or their location in the glycerol backbone via chemical or enzymatic means. SL may offer the most efficient means of delivering target fatty acids for nutritive or therapeutic purposes as well as to alleviate specific disease and metabolic conditions. This document discusses chemistry, composition, classification, function, occurrence in food and biological activities of lipids. It also sheds light on different aspects of structured lipids, including SL applications, synthesis (chemical vs. enzymatic), SL and aquaculture and future considerations for SL.

关键词： Structured Lipids n-3 Fatty Acids n-6 Fatty Acids

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