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On the installation of an in situ large-scale vertical SEALing (VSEAL) experiment on bentonite pellet-powder mixture

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第9期15卷 2388-2401页

作者： nadia Mokni Justo Cabrera Frédéric Deleruyelle Institut de Radioprotection et de SûretéNucléaire(IRSN) PSE-ENV/SEDRE/LETISFontenay-aux-Roses92260France

Recently,the Institute for Radiological protection and Nuclear Safety(IRSN)has launched VSEAL(Vertical SEALing)project to investigate the impact of gas migration on the long-term performance of bentonite based vertical sealing systems(VSS).The first VSEAL in situ test was emplaced in IRSN’s Underground Research Laboratory(URL)in Tournemire(France)in 2019 and was equipped with 76 wired and wireless *** test is still in progress,but the collected set of data provides already valuable information of the hydro-mechanical behavior of VSS during *** swelling core consists of a mixture of highdensity pellets and powder of MX80 bentonite in a ratio of 80/20(in dry mass).An innovative method was adopted to drill a 1-m diameter and w10-m deep shaft in order to minimize the rock perturbation at the *** a specific protocol was adopted to install the bentonite mixture together with a careful characterization of the core during construction,VSEAL 1 constitutes the unique in situ sealing test with a well-known initial structural distribution of the pellets and the *** heterogeneities occurred within the experiment during the installation process:a damaged zone developed around the shaft walls due to the interruption of the installation operations caused by COVID19 lockdown in France;a technological gap with a variable thickness between the last pellets layer and the top confining lid and a heterogeneous distribution of the bentonite powder at some layers inducing large inter pellets voids close to the bentonite-rock *** injected water volume,relative humidity,water content and swelling pressure in both radial and axial directions were *** of the results showed that the presence of installation-induced heterogeneities led to the generation of preferential flow paths that influenced the swelling pressure evolution at radial and axial directions.

关键词： Bentonite pellet-powder mixture Heterogeneities Technological gap Seals In situ test

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Stochastic Nicholson's blowflies model with delays

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International Journal of Biomathematics 2023年第1期16卷 97-128页

作者： nadia Belmabrouk Mondher Damak Mohsen Miraoui Faculty of Sciences Sfac UniversityBP 1171 SfacTunisia Paris-East Creteil UniversityFrance Faculty of Sciences Sfac UniversityBP 1171 SfacTunisia Preparatory Institute for Engineering Studies of Kairouan University of Kairouan Tunisia

In this research work,we introduce a new concept of double measure ergodic processes to identify the space of double measure pseudo almost periodic(or pap)processes in the pth mean *** display some findings regarding the completeness as well as the composition theorems and the invariance of the space consisting in double measure pap *** by the above-mentioned results,the Banach fixed point theorem and the stochastic analysis techniques,we prove the existence,uniqueness and the global exponential stability of doubly measure pseudo almost periodic mild solution for a class of stochastic Nicholson's blowflies model with mixed delays in a separable real Hilbert *** concluding part of the work is crowned with an example to confirm the reliability and feasibility of our findings.

关键词： Pseudo almost periodic solution measure theory fixed point theorem stochastic Nicholson's blowflies model

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Determining osmotic suction through electrical conductivity for unsaturated low-plasticity soils

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Journal of Rock Mechanics and Geotechnical Engineering 2022年第6期14卷 1946-1955页

作者： Zi Ying nadia Benahmed Yu-Jun Cui Myriam Duc Ecole des Ponts ParisTech Laboratoire Navier/CERMES6-8 Av.Blaise PascalCitéDescartesChamps-sur-MarneMarne-la-ValléeCedex277455France INRAE Aix Marseille UniversityUnitéde Recherche RECOVER3275 Route CézanneAix-en-Provence13182France UniversitéGustave Eiffel IFSTTAR/GERS/SRO14-20 Boulevard NewtonChamps-sur-MarneMarne-la-Vallée77447France

Determining osmotic suction from the electrical conductivity(EC)of soil pore water was widely reported in the ***,while dealing with unsaturated soils,they do not have enough soil pore water to be extracted for a reliable measurement of *** this paper,the chilled-mirror dew-point hygrometer and contact filter paper method were used to determine the total and matric suctions for low-plasticity soils with different salinities(0.05‰,2.1‰,and 6.76‰).A new piecewise function was proposed to calculate the osmotic suction,with the piecewise point corresponding to the first occurrence of precipitated salt in mixed salt solutions(synthetic seawater).EC,ion and salt concentrations used for osmotic suction calculation were transformed from the established relationships of mixed salt solution instead of experimental *** calculated osmotic suction by the proposed equation and the equations in the literature was compared with the indirectly measured one(the difference between the measured total and matric suctions).Results showed that the calculated osmotic suction,especially the one calculated using the proposed function,was in fair agreement with the indirectly measured data(especially for specimens with higher salinity of 6.76‰),suggesting that the transformation of EC and concentrations from the established relationship is a good alternative to direct measurement for lowplasticity *** particular,the proposed method could be applied to unsaturated low-plasticity soils which do not have enough soil pore water for a proper EC measurement.

关键词： Unsaturated soils Mixed salt solutions Osmotic suction Electrical conductivity(EC)

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Phytochemical analysis and inhibitory effects of Calligonum polygonoides on pancreatic α-amylase and β-glucosidase enzymes

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Journal of Traditional Chinese Medicine 2022年第3期42卷 426-431页

作者： Mushtaq Ahmed Naila Sher nadia Mushtaq Rahmat Ali Khan Department of Biotechnology Faculty of Biological SciencesUniversity of Science&TechnologyBannu 28100KPK-Pakistan Department of Botany Faculty of Biological SciencesUniversity of Science&TechnologyBannu 28100KPKPakistan

OBJECTIVES:To estimate the existence of phytochemicals and then to determine the antidiabetic activity againstα-amylase andβ-glucosidase inhibition in ***:The study was carried out by following standard ***:Phytochemicals analysis indicated the presence of different *** total phenolic content was 6.055 mg GAE/g and the total flavonoid content was 5.706 mg RU/g in the plant *** total saponins,alkaloids,and tannins contents were(0.044%),(2.88%)and(2.862 nm)respectively.α-amylase inhibition activity of Calligonum polygonoides(CP)extract was 70%with IC50 of 610μg/mL and that ofβ-glucosidase inhibition activity was 65%with IC50 of 640μg/***:The findings reported for the first time the antidiabetes-promoting effects of an extract of CP in vitro,thus validating their promising anti-diabetes potential.

关键词： Calligonum polygonoides phytochemicals alpha-amylases beta-glucosidase

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Prevelance of Bovine Cysticercosis in Egypt and the Cysticidal Effect of Two Extracts Obtained from Balanites aegyptiaca and Moringa oleifera on Mice Model Affected with T. saginata Cysticerci

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Open Journal of Animal Sciences 2024年第2期14卷 39-55页

作者： Omnia M. Kandil Noha M. F. Hassan Doaa Sedky Hatem A. Shalaby Heba M. Ashry nadia M. T. Abu El Ezz Sahar M. Kandeel Mohamed S. Abdelfattah L. Ying Ebtesam M. Al-Olayan Parasitology and Animal Diseases Department Veterinary Research Institute National Research Centre Dokki Cairo Egypt Chemistry of Natural Compounds Department Pharmaceutical and Drugs Industries Research Institute National Research Centre Dokki Cairo Egypt Chemistry Department Faculty of Science Helwan University Cairo Egypt State Key Laboratory of Plateau Ecology and Agriculture Qinghai University Xining China College of Agriculture and Animal Husbandry Qinghai University Xining China Department of Zoology Collage of Science King Saud University Riyadh Saudi Arabia

The aim of the present study was to determine the prevalence of bovine cysticercosis in both cattle and buffloas, in Egypt and to assess the cysticidal efficacy of Balanites aegyptiaca fruits (B. aegyptiaca) and Moringa oleifera seeds (M. oleifera) extracts in experimentally infected mice. The study detected the level of tumor necrosis factor (TNF-α) to monitor the immune and inflammatory responses of experimentally infected mice. Through meat inspection, a total number of 2125 male bovine, 2 to 5 years old, (1125 cattle and 1000 buffloes) were examined under the authority of Albsatine and Alwaraq official abattoirs in Cairo Governorate, Egypt covering the period extended from March 2022 to April 2023. The overall prevalence of the disease among bovine was 7.8% (6.31% of cattle and 9.5% of buffloes). Besides, B. aegyptiaca and M. oleifera extracts showed cysticidal activity in experimentally infected mice. A decrease in the numbers of cysticerci was found in all treated mice groups, and up to 88% reduction was achieved in the B. aegyptiaca-treated group;higher than that was recorded in both M. oleifera (72.23%) and albendazole-treated ones (80.56%). Postmortem findings proved that M. oleifera and B. aegyptiaca reduced cysticerci numbers comparable to a commercial anthelmintic. The study showed a significant decrease (P 0.001) in TNF-α levels after treatment with Balanites and Moringa extracts, compared with the untreated control and the albendazole-treated groups.

关键词： Prevalence Balanites aegyptiaca Moringa oleifera Mice T. saginata Cysticerci

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Septic cardiomyopathy: Diagnosis and management

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Journal of Intensive Medicine 2022年第1期2卷 8-16页

作者： Florence Boissier nadia Aissaoui Service de Médecine Intensive Réanimation CHU de PoitiersPoitiers 86021France Universitéde Poitiers Poitiers INSERM CIC 1402(ALIVE group)France Service de Médecine Intensive Réanimation Hôpital CochinAPHPParis 75014France Universitéde Paris Paris Cardiovascular Research CenterINSERM U970Paris 75015France

There is an extensive body of literature focused on sepsis-induced myocardial dysfunction,but results are con-flicting and no objective definition of septic cardiomyopathy(SCM)has been *** may be defined as a sepsis-associated acute syndrome of non-ischemic cardiac dysfunction with systolic and/or diastolic left ventricular(LV)dysfunction and/or right ventricular *** should consider this diagnosis in patients with sepsis-associated organ dysfunction,and particularly in cases of septic shock that require *** is currently the gold standard for diagnosis of *** ventricular ejection fraction is the most common parameter used to describe LV function in the literature,but its dependence on loading condi-tions,particularly afterload,limits its use as a measure of intrinsic myocardial ***,repeated echocardiography evaluation is *** of global longitudinal strain(GLS)may be more sensi-tive and specific for SCM than LV ejection fraction(LVEF).Standard management includes etiological treatment,adapted fluid resuscitation,use of vasopressors,and *** of inotropes remains uncertain,and heart rate control could be an option in some patients.

关键词： Septic shock Myocardial dysfunction Echocardiography Septic cardiomyopathy

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Response of Reynolds stresses and scaling behavior of high-order structure functions to a water-worked gravel-bed surface and its implication on sediment transport

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International Journal of Sediment Research 2022年第1期37卷 1-13页

作者： nadia Penna Ellora Padhi Subhasish Dey Roberto Gaudio Dipartimento di Ingegneria Civile Università Della Calabria Department of Civil Engineering Shiv Nadar University Department of Civil Engineering Indian Institute of Technology Kharagpur

The aim of this experimental study is to investigate the interaction between turbulent flow and a gravelbed that mimics the actual roughness structures of a natural bed and its implication on sediment *** particular,the response of the Reynolds stresses and the role of intermittency to the bed roughness is the primary focus of the current *** this end,the flow field,measured with an Acoustice Doppler Velocimeter (ADV),is thoroughly examined,considering the conditional Reynolds shear stresses and the high-order structure functions of *** study results show that the features and the roughness structure of the water-worked gravel-bed (WWGB) have a strong impact on bursting *** reason for this is attributed to the flow layer above the crest in the WWGBs being primarily affected by sweep events rather than ejection events,although the latter events are prevalent in this flow layer in an immobile,man-made,*** coherent structures,which are primarily responsible for sediment transport,also are the key cause of the presence of an intermittency excess that breaks the Kolmogorov self-similarity hypothesis,leading to multi-fractal behavior of the velocity structure functions.

关键词： Water-worked bed Turbulent flow Sweeps Ejections High-order structure functions

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Neuroprotective role of Noggin in spinal cord injury

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Neural Regeneration Research 2023年第3期18卷 492-496页

作者： nadia Al-Sammarraie Mohammed Mahmood Swapan K.Ray Department of Pathology Microbiologyand ImmunologyUniversity of South Carolina School of MedicineColumbiaSCUSA

Spinal cord injury is one of the leading causes of morbidity and mortality among young adults in many countries including the United *** in the regeneration of neurons is one of the main obstacles that leave spinal cord injury patients with permanent paralysis in most *** research has found that preventing acute and subacute secondary cellular damages to the neurons and supporting glial cells can help slow the progression of spinal cord injury pathogenesis,in part by reactivating endogenous regenerative proteins including Noggin that are normally present during spinal cord *** is a complex protein and natural inhibitor of the multifunctional bone morphogenetic proteins,and its expression is high during spinal cord development and after induction of spinal cord *** this review article,we first discuss the change in expression of Noggin during pathogenesis in spinal cord ***,we discuss the current research knowledge about the neuroprotective role of Noggin in preclinical models of spinal cord ***,we explain the gap in the knowledge for the use of Noggin in the treatment of spinal cord *** results from extensive in vitro and in vivo research have revealed that the therapeutic efficacy of Noggin treatment remains debatable due to its neuroprotective effects observed only in early phases of spinal cord injury but little to no effect on altering pathogenesis and functional recovery observed in the chronic phase of spinal cord ***,clinical information regarding the role of Noggin in the alleviation of progression of pathogenesis,its therapeutic efficacy,bioavailability,and safety in human spinal cord injury is still lacking and therefore needs further investigation.

关键词： apoptosis astrocyte differentiation axon myelination axon regeneration bone morphogenetic protein glial scar heterotrophic ossification neurogenesis neuropathic pain Noggin spinal cord injury

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Design Principles-Based Interactive Learning Tool for Solving Nonlinear Equations

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Computer Systems Science & Engineering 2022年第3期40卷 1023-1042页

作者： Ahad Alloqmani Omimah Alsaedi nadia Bahatheg Reem Alnanih Lamiaa Elrefaei Computer Sciences Department Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddahSaudi Arabia Electrical Engineering Department Faculty of Engineering at ShoubraBenha UniversityCairoEgypt

Interactive learning tools can facilitate the learning process and increase student engagement,especially tools such as computer programs that are designed for human-computer ***,this paper aims to help students learn five different methods for solving nonlinear equations using an interactive learning tool designed with common principles such as feedback,visibility,affordance,consistency,and *** also compares these methods by the number of iterations and time required to display the *** study helps students learn these methods using interactive learning tools instead of relying on traditional teaching *** tool is implemented using the MATLAB app and is evaluated through usability testing with two groups of users that are categorized by their level of experience with *** with no knowledge in root-finding confirmed that they understood the root-finding concept when interacting with the designed *** positive results of the user evaluation showed that the tool can be recommended to other users.

关键词： Graphical user interface(GUI) interactive learning tool design principles nonlinear equations experimental design

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Invariant of Enhanced AES Algorithm Implementations Against Power Analysis Attacks

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Computers, Materials & Continua 2022年第7期72卷 1861-1875页

作者： nadia Mustaqim Ansari Rashid Hussain Sheeraz Arif Syed Sajjad Hussain Department of Electronic Engineering Dawood University of Engineering&TechnologyKarachiPakistan Faculty of Engineering Sciences and Technology Hamdard UniversityKarachiPakistan Faculty of Information Technology Salim Habib UniversityKarachiPakistan Faculty of Computer Sciences SZABISTKarachiPakistan

The security of Internet of Things(IoT)is a challenging task for researchers due to plethora of IoT *** Channel Attacks(SCA)are one of the major *** prime objective of SCA is to acquire the information by observing the power consumption,electromagnetic(EM)field,timing analysis,and acoustics of the ***,the attackers perform statistical functions to recover the *** Encryption Standard(AES)algorithm has proved to be a good security solution for constrained IoT *** paper implements a simulation model which is used to modify theAES algorithm using logicalmasking *** invariant of the AES algorithm hides the array of bits during substitution byte transformation of *** model is used against SCAand particularly Power Analysis Attacks(PAAs).Simulation model is designed on MATLAB *** will give better solution by hiding power profiles of the IoT devices against *** future,the lightweight AES algorithm with false key mechanisms and power reduction techniques such as wave dynamic differential logic(WDDL)will be used to safeguard IoT devices against side channel attacks by using Arduino and field programmable gate array(FPGA).

关键词： Side channel attacks power analysis attacks network security masking advance encryption standard

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