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Study on the Degradation and Synergistic /antagonistic Antioxidizing Mechanism of Phenolic /aminic Antioxidants and Their Combinations

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润滑油 2014年第3期29卷 45-55页

作者： vincent j.gatto Alfonso Ortiz Charles Zha jason Chen jeffrey Wang Albemarle Corporation Baton Rouge Albemarle Corporation(Shanghai)

Oxidation stability of lubricating oil is critical for the smooth operation of industrial equipment such as *** formation is a major issue in turbine ***,the turbine oil industry employs antioxidants,especially,the combination of aminic and phenolic antioxidants,as the key additives to reduce sludge *** amines,primarily PANA,are considered as the most effective antioxidants in terms of oxidation induction time(OIT)measured by the RPVOT ***,PANA is also a sludge *** antioxidants are normally used in combination with the aminic *** is widely believed that there exists a synergistic effect between the phenolic and aminic *** the interaction mechanism between the two types of antioxidants,it is generally accepted that phenolics act as a hydrogen donor to help regenerate the consumed aminic *** mechanism can only explain some of the phenomena observed in field practice,but there are many other questions remaining unanswered including the antagonistic effect between PANA and *** this study,we used HPLC,FTIR and LC-MS to monitor the degradation products of the oil systems that were formulated with various aminic and phenolic *** the APANA alone system,we identified the formation of dimers and trimers of *** the PANA alone system,we identified the formation of dimers and *** dimers,trimers,and tetramers of PANA have very limited *** findings therefore help explain why PANA is a sludge *** oligomerizations(dimerization,trimerization,etc.)regenerate the N-H functionality,thus explaining why the PANA as well as other amines are very effective *** the PANA/phenolic system,the oligomers of PANA were greatly ***,we identified species that were formed by the recombination of the PANA radicals,or the PANA oligomeric radicals with the phenolic ***,to our knowledge,has not been reporte

关键词：石油产品副产品石油原油

Molybdate Ester Technologies for PCMO and HDDEO

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Molybdate Ester Technologies for PCMO and HDDEO

Two adjacent NLR genes conferring quantitative resistance to clubroot disease in Arabidopsis are regulated by a stably inherited epiallelic variation

中国润滑技术论坛（2018）暨中国汽车工程学会汽车燃料与润滑油分会第十八届年会

作者： Brian M.Casey vincent j.gatto junbing Yao Dalian Lubrication Technology Forum

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来源： cnki会议评论

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Plant Communications 2024年第5期5卷 148-162页

作者： Antoine Gravot Benjamin Lie gard Leandro Quadrana Florian Veillet Yoann Aigu Tristan Bargain juliette Benejam Christine Lariagon jocelyne Lemoine vincent Colot Maria j.Manzanares-Dauleux Melanie jubault IGEPP Institut Agro INRAEUniversitede Rennes35650 Le RheuFrance Institut de Biologie de l’Ecole Normale Superieure(IBENS) Ecole Normale SuperieureCentre National de la Recherche Scientifique(CNRS)Institut National de la Santeet de la Recherche Medicale(INSERM)75005 ParisFrance IGEPP INRAE Institut AgroUniversitede Rennes29260 PloudanielFrance Present address:Aix-Marseille University CEACNRSInstitute of Biosciences and BiotechnologiesBIAM Cadarache13108 Saint-Paul-lez-DuranceFrance.

Clubroot caused by the protist Plasmodiophora brassicae is a major disease affecting cultivated *** a combination of quantitative trait locus(QTL)fine mapping,CRISPR-Cas9 validation,and extensive analyses of DNA sequence and methylation patterns,we revealed that the two adjacent neigh-boring NLR(nucleotide-binding and leucine-rich repeat)genes AT5G47260 and AT5G47280 cooperate in controlling broad-spectrum quantitative partial resistance to the root pathogen *** in Arabidopsis and that they are epigenetically *** variation in DNA methylation is not associated with any nucleotide variation or any transposable element presence/absence variants and is stably ***-ations in DNA methylation at the Pb-At5.2 QTL are widespread across Arabidopsis accessions and corre-late negatively with variations in expression of the two *** study demonstrates that natural,stable,and transgenerationally inherited epigenetic variations can play an important role in shaping resistance to plant pathogens by modulating the expression of immune receptors.

关键词： methylation clubroot Plasmodiophora brassicae AT5G47260 AT5G47280 ADR1-L3 ddm1

Music alters heart rate and psychological responses but not muscle activation during light-intensity isometric exercise

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Sports Medicine and Health Science 2024年第4期6卷 394-401页

作者： Andrew R.Moore jasmin C.Hutchinson Christa Winter Paul C.Dalton Lori A.Bolgla vincent j.Paolone Department of Kinesiology Augusta University112015th St.AugustaGA30912USA Department of Exercise Science&Athletic Training Springfield College263 Alden St.SpringfieldMA01109USA Department of Psychology Springfield College263 Alden St.SpringfieldMA01109USA Heart&Vascular Institute Penn State College of MedicinePenn State University500 HMC Crescent RoadNorth Lobby HersheyPA17033USA Department of Physical Therapy Augusta University112015th St.AugustaGA30912USA

Listening to music manipulates attention to be more externally focused,which has the potential to improve muscular *** study aimed to determine the effect of listening to music on muscle activation during an isometric exercise task,and compare this effect to those of other attentional focus *** healthy subjects(n=35;16 men/19 women)completed an isometric elbow flexion task for 1 min in three randomized and counterbalanced conditions:internal focus(INT),external focus with a simple distraction task(EXT),or listening to music(MUS).Muscle activation of the biceps and triceps brachii and heart rate(HR)were recorded throughout the exercise *** of perceived exertion(RPE),affective valence,and motivation were measured at the end of each *** was no difference in muscle activation measures among the three *** during MUS was lower than EXT at 15 s([89.4±11.8]beats/min vs.[93.1±12.9]beats/min;p=0.018)and 30 s([90.6±12.4]beats/min vs.[94.2±12.5]beats/min;p=0.026),and lower than INT at 60 s([93.3±13.3]beats/min vs.[96.7±12.0]beats/min;p=0.016).Overall RPE was higher for INT(13.4±2.2)than for MUS([12.6±2.0];p=0.020)and EXT([11.94±2.22];p<0.001).Affective valence was higher for MUS than for INT([2.7±1.4]vs.[2.1±1.5];p=0.011).Manipulating attentional focus did not alter muscle activation for a light-intensity isometric muscular endurance task,though MUS was reported as more positive and requiring less exertion to complete than *** music can therefore be recommended during light-intensity isometric exercise based on the psychological benefits observed.

关键词： Electromyography Attentional focus Rating of perceived exertion Elbow flexion

Intelligent Detection and Identification of Attacks in IoT Networks Based on the Combination of DNN and LSTM Methods with a Set of Classifiers

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Open journal of Applied Sciences 2024年第8期14卷 2296-2319页

作者： Brou Médard Kouassi vincent Monsan Kablan jérôme Adou Department of Mathematics and Computer Science University Felix Houphouet-Boigny Abidjan Cte dIvoire

Internet of Things (IoT) networks present unique cybersecurity challenges due to their distributed and heterogeneous nature. Our study explores the effectiveness of two types of deep learning models, long-term memory neural networks (LSTMs) and deep neural networks (DNNs), for detecting attacks in IoT networks. We evaluated the performance of six hybrid models combining LSTM or DNN feature extractors with classifiers such as Random Forest, k-Nearest Neighbors and XGBoost. The LSTM-RF and LSTM-XGBoost models showed lower accuracy variability in the face of different types of attack, indicating greater robustness. The LSTM-RF and LSTM-XGBoost models show variability in results, with accuracies between 58% and 99% for attack types, while LSTM-KNN has higher but more variable accuracies, between 72% and 99%. The DNN-RF and DNN-XGBoost models show lower variability in their results, with accuracies between 59% and 99%, while DNN-KNN has higher but more variable accuracies, between 71% and 99%. LSTM-based models are proving to be more effective for detecting attacks in IoT networks, particularly for sophisticated attacks. However, the final choice of model depends on the constraints of the application, taking into account a trade-off between accuracy and complexity.

关键词： Internet of Things Machine Learning Attack Detection jamming Deep Learning

Error field penetration in j-TEXT tokamak based on two-fluid drift-MHD model

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Chinese Physics B 2024年第4期33卷 545-551页

作者：王文徐涛张仪 the j-TEXT team State Key Laboratory of Advanced Electromagnetic Technology International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma PhysicsSchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China

An externally generated resonant magnetic perturbation can induce complex non-ideal MHD responses in their resonant *** have studied the plasma responses using Fitzpatrick's improved two-fluid model and program *** calculated the error field penetration threshold for *** addition,we find that the island width increases slightly as the error field amplitude increases when the error field amplitude is below the critical penetration ***,the island width suddenly jumps to a large value because the shielding effect of the plasma against the error field disappears after the *** scanning the natural mode frequency,we find that the shielding effect of the plasma decreases as the natural mode frequency ***,we obtain the m/n=2/1 penetration threshold scaling on density and temperature.

关键词： plasma responses drift-MHD model error field penetration

Exploring the effects of dietary inulin in rainbow trout fed a high‑starch,100%plant‑based diet

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journal of Animal Science and Biotechnology 2024年第2期15卷 713-732页

作者： Raphaël Defaix jep Lokesh Laura Frohn Mickael Le Bechec Thierry Pigot vincent Veron Anne Surget Sandra Biasutti Frederic Terrier Sandrine Skiba-Cassy jerome Roy Stephane Panserat Karine Ricaud Universite de Pau Et Des Pays de L’Adour E2S UPPAINRAENUMEASaint‑Pee‑Sur‑NivelleFrance Universite de Pau Et Des Pays de L’Adour E2S UPPACNRSIMT Mines AlesIPREMPauFrance Universite de Pau Et Des Pays de L’Adour E2S UPPAIUT des Pays de l’AdourDepartement Genie BiologiqueMont de MarsanFrance.

Background High dietary carbohydrates can spare protein in rainbow trout(Oncorhynchus mykiss)but may affect growth and ***,a prebiotic,could have nutritional and metabolic effects,along with anti-inflammatory properties in teleosts,improving growth and *** tested this hypothesis in rainbow trout by feeding them a 100%plant-based diet,which is a viable alternative to fishmeal and fish oil in aquaculture *** a two-factor design,we examined the impact of inulin(2%)as well as the variation in the carbohydrates(CHO)/plant protein ratio on rainbow *** assessed the influence of these factors on zootechnical parameters,plasma metabolites,gut microbiota,production of short-chain fatty acids and lactic acid,as well as the expression of free-fatty acid receptor genes in the mid-intestine,intermediary liver metabolism,and immune markers in a 12-week feeding *** The use of 2%inulin did not significantly change the fish intestinal microbiota,but interestingly,the high CHO/protein ratio group showed a change in intestinal microbiota and in particular the beta diversity,with 21 bacterial genera affected,including Ralstonia,Bacillus,and 11 lactic-acid producing *** were higher levels of butyric,and valeric acid in groups fed with high CHO/protein diet but not with *** high CHO/protein group showed a decrease in the expression of pro-inflammatory cytokines(il1b,il8,and tnfa)in liver and a lower expression of the genes coding for tight-junction proteins in mid-intestine(tjp1a and tjp3).However,the 2%inulin did not modify the expression of plasma immune ***,inulin induced a negative effect on rainbow trout growth performance irrespective of the dietary *** With a 100%plant-based diet,inclusion of high levels of carbohydrates could be a promising way for fish nutrition in aquaculture through a protein sparing effect whereas the supplementation of 2%inulin does not appear to improve the use of CHO wh

关键词： Aquaculture Fish nutrition Gut microbiota Immune markers Intermediary metabolism Inulin Prebiotic Rainbow trout Short-chain fatty acids

Storing Freshwater Versus Storing Electricity in Power Systems with High Freshwater Electric Demand

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journal of Modern Power Systems and Clean Energy 2024年第2期12卷 323-333页

作者： Mubarak j.Al-Mubarak Antonio j.Conejo Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOHUSA Department of Electrical Engineering Kuwait UniversityP.O.Box 5969Safat 13060Kuwait Department of Integrated Systems Engineering and the Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOH 43210USA IEEE

We consider a power system whose electric demand pertaining to freshwater production is high(high freshwater electric demand),as in the Middle East,and investigate the tradeoff of storing freshwater in tanks versus storing electricity in batteries at the day-ahead operation *** storing freshwater and storing electricity increase the actual electric demand at valley hours and decrease it at peak hours,which is generally beneficial in term of cost and ***,to what extent?We analyze this question considering three power systems with different generation-mix configurations,i.e.,a thermal-dominated mix,a renewable-dominated one,and a fully renewable *** generation-mix configurations are inspired by how power systems may evolve in different countries in the Middle *** production uncertainty is compactly modeled using chance *** draw conclusions on how both storage facilities(freshwater and electricity)complement each other to render an optimal operation of the power system.

关键词： Power system operation freshwater production and transportation coordination day-ahead scheduling

Molecular Characterization of Gastrointestinal Stromal Tumors (Gist) and Contribution of Immunohistochemistry in Congolese from Kinshasa

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Open journal of Gastroenterology 2024年第4期14卷 109-116页

作者： Rive Lukuaku jérémie Okumadi Fabrice Bokambandja Andy Mbangama vincent Mbatu Georges Mvumbi jean-Louis Mumbere David Azako Serge Pezo Dieudonné Mvumbi Faculty of Medicine Bel Campus Technological University Kinshasa DR Congo Department of Anatomy and Pathological Cytology University Clinics of Kinshasa Kinshasa DR Congo Department of Gyneco-Obstetrics University Clinics of Kinshasa Kinshasa DR Congo Molecular Biology Department Faculty of Medicine University of Kinshasa Kinshasa DR Congo Institute of Medical Immunology Free University of Brussels Ixelles Belgium

Introduction: The differentiation of digestive tumors very often requires the use of techniques currently not widely in use in the Democratic Republic of Congo (DRC), such as immunohistochemistry. This is perfectly verified for GISTs whose precise, or at least highly certain, diagnosis can only be made using immunohistochemical markers. This underuse of these techniques due to lack of equipment and human skills explains the limited epidemiological data available to date, thus leading to untargeted and too often late treatment of patients. Research question: What contribution can immunohistochemical markers make to the diagnosis of digestive tract tumours? Objective: Discuss the contribution of immunohistochemical markers in the diagnosis of GIST and provide basic data on the epidemiology of these nosological entities in Kinshasa. Methodology: This was a retrospective study carried out at the LEBOMA private anatomy and pathological cytology centre. The main inclusion criterion was any digestive tract block or slide whose diagnosis of GIST had been requalified after review by at least 2 pathologists. An immuhistochemical study was performed using an automated technique (with a Ventana XT machine) using a panel of antibodies: CD-117 and DOG-1 which are listed in the literature as strongly correlated with the occurrence of GIST, all slides were made at Hj Hospital using an OLYMPUS BX41 co-observation microscope. Results: Of 601 cases of digestive tumors recorded during the concerned period, 32 (5.32%) concerned GIST. This prevalence was confirmed by our immunohistochemical results where the expression of CD117 and that of DOG-1 were positive in 90.6% and 100% of cases which prevalence is high compared with the worldwide prevalence according to the literature, respectively. The distribution of the patients concerned was made with a sex ratio of 1.6 women/men with a median age of 53 years. Most cases (81%) had a gastric location and were fusiform GISTs. Conclusion: Gastro

关键词： Digestive Tumors GIST Immunohistochemistry CD117 DOG-1