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Dynamic Interaction Analysis of Coupled Axial-Torsional-Lateral Mechanical Vibrations in Rotary Drilling Systems

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Structural Durability & Health Monitoring 2025年第1期19卷 77-103页

作者： sabrina Meddah Sid Ahmed Tadjer Abdelhakim Idir Kong Fah Tee Mohamed Zinelabidine Doghmane Madjid Kidouche Applied Automation Laboratory Faculty of Hydrocarbons and ChemistryUniversity of BoumerdesBoumerdes35000Algeria Institute of Electrical and Electronic Engineering(IGEE) University of BoumerdesBoumerdes35000Algeria Laboratory of the Electrification of Industrial Enterprises University of BoumerdesBoumerdes35000Algeria Electrical Engineering Department Mohamed Boudiaf University of M’silaM’sila28000Algeria Department of Civil and Environmental Engineering King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Interdisciplinary Research Center for Construction and Building Materials King Fahd University of Petroleum&Minerals(KFUPM)Dhahran31261Saudi Arabia

Maintaining the integrity and longevity of structures is essential in many industries,such as aerospace,nuclear,and *** achieve the cost-effectiveness of large-scale systems in petroleum drilling,a strong emphasis on structural durability and monitoring is *** study focuses on the mechanical vibrations that occur in rotary drilling systems,which have a substantial impact on the structural integrity of drilling *** study speciﬁcally investigates axial,torsional,and lateral vibrations,which might lead to negative consequences such as bit-bounce,chaotic whirling,and high-frequency *** events not only hinder the efﬁciency of drilling but also lead to exhaustion and harm to the system’s components since they are difﬁcult to be detected and controlled in real *** study investigates the dynamic interactions of these vibrations,speciﬁcally in their high-frequency modes,usingﬁeld data obtained from measurement while ***ﬁndings have demonstrated the effect of strong coupling between the high-frequency modes of these vibrations on drilling sys-tem *** obtained results highlight the importance of considering the interconnected impacts of these vibrations when designing and implementing robust control ***,integrating these compo-nents can increase the durability of drill bits and drill strings,as well as improve the ability to monitor and detect ***,by exploiting theseﬁndings,the assessment of structural resilience in rotary drilling systems can be ***,the study demonstrates the capacity of structural health monitoring to improve the quality,dependability,and efﬁciency of rotary drilling systems in the petroleum industry.

关键词： Rotary drilling systems mechanical vibrations structural durability dynamic interaction analysis ﬁeld data analysis

How behavioral plasticity enables foraging under changing environmental conditions in the social wasp Vespula germanica (Hymenoptera: Vespidae)

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Insect Science 2021年第1期28卷 231-237页

作者： sabrina Moreyra Mariana Lozada Laboratorio Ecotono.Instituto de Investigaciones en Biodiversidad y Medio Ambiente(INIBIOMA)—CONICET—Universidad Nacional del Comahue QuintralBarilocheArgentina

The foraging strategy at abundant resources of the social wasp Vespula germanica includes scanning in the direction of the nest while memorizing resource-specific landmarks and contextual *** the present study,we sought to explore wasps'behavioral plasticity on foraging trips to resources whose location and composition changed after a single *** evaluated how contextual modifications of food displacement and replacements 60 cm apart from the original site,affect re-orientation for re-finding previously memorized food *** results showed that wasps detected and collected the resource faster when more changes were introduced on the following *** returning foragers discovered several modifications on both the location and the kind of resource,they collected food more rapidly from the displaced dish,than if only a single parameter in the environment had been *** findings illustrate the grade of behavioral plasticity in *** while foraging on abundant resources,which may contribute to the understanding of the prodigious invasive success of this species in anthropized environments.

关键词： behavioral plasticity environmental conditions foraging invasive insects learning social wasps

The role of general anesthetics and the mechanisms of hippocampal and extra-hippocampal dysfunctions in the genesis of postoperative cognitive dysfunction

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Neural Regeneration Research 2017年第11期12卷 1780-1785页

作者： Marco Cascella sabrina Bimonte Division of Anesthesia and Pain Medicine Istituto Nazionale Tumori-IRCCS-Fondazione G.Pascale Via Mariano SemmolaNaplesItaly

Postoperative cognitive dysfunction （POCD） is a multifactorial process with a huge number of predisposing, causal, and precipitating factors. In this scenario, the neuroinflammation and the microglial activation play a pivotal role by triggering and amplifying a complex cascade involving the immuno-hormonal acti- vation, the micro circle alterations, the hippocampal oxidative stress activation and, finally, an increased blood-brain barrier＇s permeability. While the role of anesthetics in the POCD＇s genesis in humans is debated, a huge number of preclinical studies have been conducted on the topic and many mechanisms have been proposed to explain the potential neurodegenerative effects of general anesthetics. Probably, the problem concerns on what we are searching for and how we are searching and, surprisingly, preclinical studies showed that anesthetics may also manifest neuroprotective properties. The aim of this paper is to offer an overview on the potential impact of general anesthetics on POCD. Mechanisms of hippocampal and extra-hippocampal dysfunction due to neuroinflammation are discussed, whereas further research perspectives are also given.

关键词： neuroinflammation microglial activation dementia anesthesia neurodegeneration neuroprotection

BSN: The First Photometric Analysis of Contact Binary Systems V1961 Cyg and V0890 Lyr

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Research in Astronomy and Astrophysics 2024年第12期24卷 127-139页

作者： sabrina Baudart Atila Poro Double Stars Committee SociétéAstronomique de France LUX Observatoire de ParisCNRSPSL

We presented the first photometric analysis of the V1961 Cyg and V0890 Lyr binary *** observed and analyzed these systems at an observatory in France as part of the Binary Systems of South and North （BSN）*** extracted and collected the times of minima from the observations and literature and presented a new ephemeris for each *** to the few observations about these systems over the years,both O–C diagrams were fitted *** PHysics Of Eclipsing BinariEs （PHOEBE） Python code and the Markov Chain Monte Carlo （MCMC） method were used for light curve *** light curve solution required a cold starspot on the hotter component in the V1961 Cyg binary *** compared and have close agreements between our mass ratios’results from the light curve analysis processes and a new method based on the light curve *** estimated the absolute parameters using an empirical relationship between the semimajor axis and orbital period for contact binary *** results show V1961 Cyg and V0890 Lyr are W-type contact binary *** displayed stars and systems’positions in the M–L,M–R,and logMtot-log *** also presented a new relationship between mass ratio and luminosity ratio.

关键词： (stars:) binaries: eclipsing methods: observational stars: individual (V1961 Cyg, V0890 Lyr)

Comparison of laboratory and field electrical resistivity measurements of a gypsum rock for mining prospection applications

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International Journal of Mining Science and Technology 2019年第6期29卷 841-849页

作者： Chiara Caselle sabrina Bonetto Cesare Comina Department of Earth Science (DST) Torino University

Geophysical surveys are frequently applied in mining prospection to detect the presence and volume of ore bodies of different ***,in gypsum ore bodies exploitation,electrical resistivity measurements are usually the most used ***,it has been observed that different electrical resistivity values can be obtained depending on geometrical features and composition of ***,electrical resistivity of gypsum rocks depends on several parameters,such as gypsum purity,nature of secondary minerals,porosity,saturation and interstitial fluid *** and hydrogeological setting,in particular,were recognized as the most influencing *** conditions of gypsum rock masses are also very relevant for exploitability,safety conditions and economic feasibility and should be accurately known during the prospection and planning phases of the *** this work,a relationship between electrical resistivity and saturation degree of gypsum is *** possibility to estimate gypsum porosity with the use of this relationship is also *** reliability of laboratory measurements is finally verified in comparison with field and modelled resistivity *** reported results underline the potentiality of the proposed approach to obtain a reliable characterization of the studied ore body.

关键词： Gypsum rock Electrical resistivity Saturation Porosity Archie ERT Quarry

The pathology behind glaucoma:what we already know using omics technologies

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Neural Regeneration Research 2023年第12期18卷 2701-2702页

作者： Caroline May sabrina Reinehr Department Functional Proteomics Medizinisches Proteom-CenterRuhr-University BochumBochumGermany Experimental Eye Research Institute University Eye HospitalRuhr-University BochumBochumGermany

The term glaucoma encompasses a spectrum of eye diseases pathologically characterized by an irreversible loss of retinal ganglion cells and their associated axons. Patients initially suffer from gaps in their visual field, the part of the visual range that can be perceived without eye movement. In the early stages of the disease, this damage can be compensated very well by eye movements. This, in turn, means that glaucoma is often not diagnosed until the disease is more advanced.

关键词： visual irreversible initially

Current issues in pediatric inflammatory bowel diseaseassociated arthropathies

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World Journal of Gastroenterology 2014年第1期20卷 45-52页

作者： sabrina Cardile Claudio Romano Department of Pediatrics University of Messina98125 MessinaItaly

Joint involvement is the most common extraintestinal manifestation in children with inflammatory bowel disease (IBD) and may involve 16%-33% of patients at diagnosis or during follow-up. It is possible to distinguish asymmetrical, transitory and migrating arthritis (pauciarticular and polyarticular) and spondyloarthropathy (SpA). Clinical manifestations can be variable, and peripheral arthritis often occurs before gastrointestinal symptoms develop. The inflammatory intestinal pattern is variable, ranging from sub-clinical inflammation conditions, classified as indeterminate colitis and nodular lymphoid hyperplasia of the ileum, to Crohn’s disease or ulcerative colitis. Unlike the axial form, there is an association between gut inflammation and evolution of recurrent peripheral articular disease that coincides with a flare-up of intestinal disease. This finding seems to confirm a key role of intestinal inflammation in the pathogenesis of SpA. An association between genetic background and human leukocyte antigen-B27 status is less common in pediatric than n adult populations. Seronegative sacroiliitis and SpA are the most frequent forms of arthropathy in children with IBD. In pediatric patients, a correct therapeutic approach relies on the use of nonsteroidal antiinflammatory drugs, local steroid injections, physiotherapy and anti-tumor necrosis factor therapy (infliximab). Early diagnosis of these manifestations reduces the risk of progression and complications, and as well as increasing the efficacy of the therapy.

关键词： Inflammatory bowel disease Spondyloarthropathy Sacroiliitis Infliximab Extraintestinal manifestations

Two become one:combination of two risk factors in a new glaucoma animal model

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Neural Regeneration Research 2024年第5期19卷 982-983页

作者： Nils Kluge sabrina Reinehr Experimental Eye Research Institute University Eye HospitalRuhr-University BochumBochumGermany

Glaucoma is a group of eye diseases characterized by progressive loss of retinal ganglion cells(RGCs)and optic nerve *** this process,the visual field is reduced,and blindness may ultimately ***,glaucoma is the second leading cause of blindness,with about 80 million people *** is a multifactorial disease and due to its complexity,the exact pathomechanisms are not fully understood ***,different risk factors,such as elevated intraocular pressure(IOP),age,or myopia,have been identified to date(EGS,2021).

关键词： elevated exact glaucoma

Actin(g) toward a revised understanding of the role of cytoskeletal dynamics in neuronal bioenergetics

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Neural Regeneration Research 2024年第10期19卷 2109-2110页

作者： sabrina M.Holland Gianluca Gallo Department of Neural Sciences Shriners Pediatric Research CenterLewis Katz School of Medicine at Temple UniversityPhiladelphiaPAUSA

Neurons are energy-demanding *** in energy metabolism can quickly interrupt neuronal function,leading to cell death and *** instance,ischemia rapidly depletes adenosine triphosphate(ATP)thereby disrupting energy-dependent cellular processes crucial for homeostasis,and axon degeneration is preceded by a collapse of axonal ATP levels.

关键词： metabolism homeostasis degeneration