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Eco-friendly polysaccharide coatings for antifouling and dragreduction and potential application for marine devices

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Friction 2024年第4期12卷 726-744页

作者： Hao YANG Liguo QIN Wenhui ZHAO Fagla jules MAWIGNON Hui GUO Yongkang WU Yali ZHANG Guangneng DONG Key Laboratory of Education Ministry for Modern design and Rotor-Bearing System Institute of Design Science and Basic ComponentsSchool of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Biomedical Information of Ministry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’an 710049China department of Endocrinology First Affiliated Hospital of Medical CollegeXi'an Jiaotong UniversityXi’an 710061China

Traditional antifouling agents usually have a certain toxic effect on marine environments and non-target *** this study,Dictyophora indusiata polysaccharide(DIP)was applied as a natural antifouling surface modifier to prepare the surface coating for marine *** DIP coatings were prepared:*** spore polysaccharide(DISP),*** volva polysaccharide(DIVP),and *** embryonic body polysaccharide(DIEP).The antifouling,tribological,and anticorrosion behavior of the coatings were *** revealed that the three kinds of DIP coatings had excellent antifouling properties,which could effectively prevent the adhesion of Chlorella and the attachment of water-based and oily stains on the ***,the coatings showed great mechanical stability and could maintain an extremely low coefficient of friction(COFders of magnitude higher than the control *** research showed a promising prospect of surface coating fabrication with DIP for marine devices to achieve the purpose of antifouling and drag reduction.

关键词： Dictyophora indusiata polysaccharide(DIP)coating antifouling anticorrosion lubrication and drag reduction

Spatial distribution characteristics of climate-induced landslides in the Eastern Himalayas

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Journal of Mountain Science 2024年第10期21卷 3396-3412页

作者： UWIZEYIMANA David LIU Weiming HUANG Yu HABUMUGISHA jules Maurice ZHOU Yanlian YANG Zewen State Key Laboratory of Mountain Hazards and Engineering Resilience Institute of Mountain Hazards and EnvironmentChinese Academy of Sciences(CAS)Chengdu 610299China China–Pakistan Joint Research Center on Earth Sciences CAS-HECIslamabad 45320Pakistan University of Chinese Academy of Sciences Beijing 100049China

Climate warming is constantly causing hydro-meteorological perturbations,especially in high-altitude mountainous regions,which lead to the occurrences of *** impact of climatic variables(i.e.,precipitation and temperature)on the distribution of landslides in the eastern regions of the Himalayas is poorly *** address this,the current study analyzes the relationship between the spatial distribution of landslide characteristics and climatic variables from 2013 to *** Earth Engine(GEE)was employed to make landslide inventories using satellite *** results show that 2163,6927,and 9601 landslides were heterogeneously distributed across the study area in 2013,2017,and 2021,*** maximum annual temperature was positively correlated with the distribution of landslides,whereas precipitation was found to have a non-significant impact on the landslide ***,most of the landslides occurred in areas with maximum annual precipitation ranging from 800 to 1600 mm and maximum annual temperature above 15℃.However,in certain regions,earthquake disruptions marginally affected the occurrence of *** were highly distributed in areas with elevations ranging between 3000 and 5000 m above sea level,and many landslides occurred near the lower permafrost limit and close to *** latter indicates that temperature change-induced freeze-thaw action influences landslides in the *** changes have shown a positive correlation with the number of landslides within elevations,indicating that temperature affects their spatial *** climate projections suggest that the region will experience further warming,which will increase the likelihood of landslides in the ***,it is crucial to enhance ground observation capabilities and climate datasets to effectively monitor and mitigate landslide risks.

关键词： Landslide inventory Climate variables Normalized difference vegetation index Cryosphere Eastern Himalaya

Exactly Solvable Two-Parameter Models of Relativistic δ′s -Sphere Interactions in Quantum Mechanics

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Journal of Applied Mathematics and Physics 2024年第4期12卷 1263-1285页

作者： jules Manirambona Juma Shabani Alfred Vyabandi Doctoral School University of Burundi Bujumbura Burundi Faculty of Sciences Doctoral School University of Burundi Bujumbura Burundi Institute of Applied Pedagogy University of Burundi Bujumbura Burundi

We make a systematic study of two-parameter models of δ ′ s -sphere interaction and δ ′ s -sphere plus a Coulomb interaction. Where δ ′ s interaction denotes the δ ′ -sphere interaction of the second kind. We provide the mathematical definitions of Hamiltonians and obtain new results for both models, in particular the resolvents equations, spectral properties and some scattering quantities.

关键词： Boundary Conditions Problem -Sphere Interactions Self-Adjoint Operator Resolvent Equation Spectral Properties Scattering Theory

Effect of operational parameters on the performance of an anaerobic sequencing batch reactor(AnSBR)treating protein-rich wastewater

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Environmental Science and Ecotechnology 2024年第1期17卷 89-99页

作者： Zhe deng Julian Muñoz Sierra Ana Lucia Morgado Ferreira Daniel Cerqueda-Garcia Henri Spanjers jules B.van Lier delft University of Technology Faculty of Civil Engineering and GeosciencesStevinweg 12628 CNDelftthe Netherlands Veolia Water Technologies Techno Center Netherlands B.V.-Biothane Tanthofdreef 212623 EWDelftthe Netherlands KWR Water Research Institute Groningenhaven 7P.O.Box 10723430 BBNieuwegeinthe Netherlands Institute of Ecology.A.C Cluster Cientifico y Tecnologico BioMimic®Carretera Antigua a Coatepec 351El Haya91073XalapaVeracruzMexico

Treating protein-rich wastewater using cost-effective and simple-structured single-stage reactors presents several *** this study,we applied an anaerobic sequencing batch reactor(AnSBR)to treat protein-rich wastewater from a *** focused on identifying the key factors influencing the removal of chemical oxygen demand(COD)and the settling performance of the *** AnSBR achieved a maximum total COD removal of 90%,a protein degradation efficiency exceeding 80%,and a COD to methane conversion efficiency of over 70%at organic loading rates of up to 6.2 g COD L^(-1)d^(-1).We found that the variations in both the organic loading rate within the reactor and the hydraulic retention time in the buffer tank had a significant effect on COD *** hydraulic retention time in the buffer tank and the reactor,which determined the ammonification efficiencies and the residual carbohydrate concentrations in the reactor liquid,affected the sludge ***,the genus Clostridium sensu stricto 1,known as protein-and lipids-degraders,was predominant in the *** analysis showed a significant correlation between the core microbiome and ammonification efficiency,highlighting the importance of protein degradation as the governing process in the *** results will provide valuable insights to optimise the design and operation of AnSBR for efficient treatment of protein-rich wastewater.

关键词： Anaerobic digestion Anaerobic sequencing batch reactor (AnSBR) Protein Microbial community Slaughterhouse wastewater

Movement analysis in the diagnosis and management of Parkinson’s disease

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Neural Regeneration Research 2025年第2期20卷 485-486页

作者： Johannes Burtscher Nicolas Bourdillon jules MJanssen Daalen Aurélien Patoz Julien FBally Martin Kopp Davide Malatesta Bastiaan RBloem Institute of Sport Sciences University of LausanneLausanneSwitzerland Radboud University Medical Center Department of NeurologyDonders Institute for BrainCognition and BehaviorCenter of Expertise for Parkinson and Movement DisordersNijmegenThe Netherlands Radboud University Medical Center Department of Medical BioSciencesNijmegenThe Netherlands Research and development department Volodalen Swiss Sport LabAigleSwitzerland Service of Neurology Department of Clinical NeurosciencesLausanne University Hospital(CHUV)and University of Lausanne(UNIL)LausanneSwitzerland department of Sport Science University of InnsbruckInnsbruckAustria

Challenges in the diagnosis and treatment of Parkinson’s disease:Parkinson’s disease(PD)is an increasingly prevalent neurodegenerative disease,at first sight primarily characterized by motor symptoms,although non-motor symptoms also constitute a major part of the overall ***,this disease cannot be diagnosed reliably until a large part of the vulnerable dopaminergic neurons has been irretrievably lost,and the disease progresses *** biological criteria for PD have been proposed recently and might eventually improve early diagnosis,but they require further validation,and their use will initially be restricted to a research environment(Darweesh et al.,2024).

关键词： diagnosis Clinical eventually

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解密德佑湿厕纸的产品升级战略

生活用纸 2024年第5期24卷 29-32页

作者： jules 诸葛定位咨询有限公司

在湿厕纸行业风起云涌的2023年,德佑品牌以雷霆之势成为引领市场的新领袖。这背后,是德佑深思熟虑、步步为营的战略布局。2023年5月,德佑携手第一财经商业数据中心,发布了《2023湿厕纸行业趋势白皮书》,这一举动不仅彰显了德佑在湿厕纸... 详细信息

在湿厕纸行业风起云涌的2023年,德佑品牌以雷霆之势成为引领市场的新领袖。这背后,是德佑深思熟虑、步步为营的战略布局。2023年5月,德佑携手第一财经商业数据中心,发布了《2023湿厕纸行业趋势白皮书》,这一举动不仅彰显了德佑在湿厕纸行业的领先地位,更是其抢占行业话语权的重要一步。然而,就在同年的12月,湿厕纸市场的新贵——马应龙药业,也联合智篆©和清渠数据发布了《2023年湿厕纸新消费趋势白皮书》,意图在湿厕纸市场中分得一杯羹。如今,德佑品牌在湿厕纸市场的地位虽然稳固,但马应龙药业携“肛肠治痔”功效概念进军湿厕纸市场,其野心不言而喻。马应龙药业是否会像云南白药一样,在消费者心智中成功植入其功效概念,从而夺走德佑品牌湿厕纸市场的领先地位?这是一个值得密切关注的动向。为了深入了解德佑品牌的成功秘诀及其未来的发展前景,有必要对其战略决策进行了解,探寻其品牌发展和产品升级战略。

关键词：行业趋势成功秘诀消费趋势数据中心消费者心智数据发布战略决策云南白药

Comparative Study of Probabilistic and Least-Squares Methods for developing Predictive Models

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Open Journal of Applied Sciences 2024年第7期14卷 1775-1787页

作者： Boribo Kikunda Philippe Thierry Nsabimana jules Raymond Kala Jeremie Ndikumagenge Longin Ndayisaba Centre de Recherche en Infrastructure Environnement et Technologie (CRIET) Faculty of Engineering Sciences Universit du Burundi Bujumbura Burundi Faculty of Sciences Universit Catholique de Bukavu (UCB) Bukavu DR Congo Management Computer department Institut suprieur Pdagogique de bukavu (ISP/Bukavu) Bukavu DR Congo

This article explores the comparison between the probability method and the least squares method in the design of linear predictive models. It points out that these two approaches have distinct theoretical foundations and can lead to varied or similar results in terms of precision and performance under certain assumptions. The article underlines the importance of comparing these two approaches to choose the one best suited to the context, available data and modeling objectives.

关键词： Predictive Models Least Squares Bayesian Estimation Methods

Comparative Study of the Widal Test against Stool Culture in the Diagnosis of Suspected Cases of Typhoid Fever in Some Low Income Communities in the Adamawa Region of Cameroon

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Journal of Biosciences and Medicines 2024年第6期12卷 178-190页

作者： Mariane Lucie Ngueguim Bernard Viban Tangwa Victor Ngu Ngwa jules Romain Ngueguim Abdoulmoumini Mamoudou School of Veterinary Medicine and Sciences University of Ngaoundere Ngaoundere Cameroon department of Veterinary Medicine University of Buea Buea Cameroon Institute de Recherhe Agricole pour le development (IRAD) Ngaoundere Cameroun

Introduction: Infectious diseases constitute a major concern of public health in developing countries. Facilities and well trained staff have been shown to be one of the major obstacles in the rapid and quality diagnosis of these diseases. As such, we carried out an analysis to compare the Widal test and stool culture to identify febrile patients with Salmonella infection. Method: A cross sectional study was conducted to diagnose salmonella infection with out-patients who demonstrated signs of salmonella infection. Serum was harvested from blood collected from 368 (Vina = 234, Mayo Banyo 65, and Djerem = 69) patients accompanied by stool, Widal test was conducted on the spot and stool was taken to a reference laboratory for culture using standard microbiological methods, sociological set up was calculated in percentages, prevalence was calculated using excel while statistical difference was calculated using SPSS. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated to compare the Widal test against stool culture. Results: A total of 368 (50.8% females and 49.2% males) participants took part in the survey. Salmonella prevalence (66.24%) in stool culture in the Vina division was significantly different (p 0.05). The sensitivity,specificity, PPV, and NPV of slide agglutination test against stool culture varied from different areas (Vina: 51.6%, 73.62%, 79.21% and 43.61%;Mayo Banyo: 60.53%, 77.78%, 79.31% and 58.33%;Djerem: 53.18%, 83.73% 73.91% and 67.39%) respectively. Slide agglutination test has a fair agreement with the stool culture (kappa, Vina = 0.202;Mayo Banyo = 0.37 and Djerem = 0.38). Conclusion: Generally, in the three areas of study, the Widal test had a fair correlation with the stool culture;This means the Widal test should not be used alone but in combination with stool culture in the detection of salmonella infections.

关键词： Salmonella Infections Stool Culture Widal Test Adamawa Region Cameroon

Analysis of Public Sentiment regarding COVID-19 Vaccines on the Social Media Platform Reddit

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Journal of Computer and Communications 2024年第2期12卷 80-108页

作者： Lucien Dikla Ngueleo jules Pagna Disso Armel Ayimdji Tekemetieu Justin Moskolaï Ngossaha Michael Nana Kameni African Institute for Mathematical Sciences (AIMS)/AIMS-Cameroon Limbe Cameroon department of Mathematics and Computer Science Faculty of Science University of Douala Douala Cameroon WMG (Warwick Manufacturing Group) University of Warwick Coventry UK School of Information Studies McGill University Montreal Canada

This study undertakes a thorough analysis of the sentiment within the r/Corona-virus subreddit community regarding COVID-19 vaccines on Reddit. We meticulously collected and processed 34,768 comments, spanning from November 20, 2020, to January 17, 2021, using sentiment calculation methods such as TextBlob and Twitter-RoBERTa-Base-sentiment to categorize comments into positive, negative, or neutral sentiments. The methodology involved the use of Count Vectorizer as a vectorization technique and the implementation of advanced ensemble algorithms like XGBoost and Random Forest, achieving an accuracy of approximately 80%. Furthermore, through the Dirichlet latent allocation, we identified 23 distinct reasons for vaccine distrust among negative comments. These findings are crucial for understanding the community’s attitudes towards vaccination and can guide targeted public health messaging. Our study not only provides insights into public opinion during a critical health crisis, but also demonstrates the effectiveness of combining natural language processing tools and ensemble algorithms in sentiment analysis.

关键词： COVID-19 Vaccine TextBlob Twitter-RoBERTa-Base-Sentiment Sentiment Analysis Latent Dirichlet Allocation