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Freestanding MXene-based macroforms for electrochemical energy storage applications

SusMat 2023年第4期3卷 471-497页

作者： Qiongqiong Lu Congcong Liu Yirong Zhao Wengao Pan Kun Xie Pengfei Yue Guoshang Zhang Ahmad Omar Lixiang Liu Minghao Yu Daria Mikhailova institute of Materials Henan Key Laboratory of Advanced Conductor MaterialsHenan Academy of SciencesZhengzhouHenanChina Leibniz institute for Solid State and Materials Research(IFW)Dresden e.v. DresdenGermany School of Physical Science and Technology Lanzhou UniversityLanzhouChina School of engineering Westlake UniversityHangzhouZhejiangChina Faculty of Chemistry and Food Chemistry&Center for Advancing electronics Dresden Technische Universität DresdenDresdenGermany

Freestanding MXene-based macroforms have gained significant attention as versatile components in electrochemical energy storage applications owing to their interconnected conductive network,strong mechanical strength,and customizable surface chemistries derived from MXene *** comprehensive review article encompasses key aspects related to the synthesis of MXene nanosheets,strategies for structure design and surface medication,surface modification,and the diverse fabrication methods employed to create freestanding MXene-based macroform *** review also de.v.s into the recent advancements in utilizing freestanding MXene macroforms for electrochemical energy storage applications,offering a detailed discussion on the significant progress achieved thus ***,the correlation between the macroform’s structural attributes and its performance characteristics is thoroughly explored,shedding light on the critical factors influencing efficiency and *** the remarkable development,the review also highlights the existing challenges and presents future perspectives for freestanding MXenebased macroforms in the realms of high-performance energy storage *** addressing these challenges and leveraging emerging opportunities,the potential of freestanding MXene-based macroforms can be harnessed to enable groundbreaking advancements in the field of energy storage.

关键词： batteries electrochemical energy storage freestanding macroforms MXenes supercapacitors

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Navigating the ethical and privacy concerns of big data and machine learning in decision making

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Intelligent and Converged Networks 2023年第4期4卷 280-295页

作者： Hamed Taherdoost the Department of Arts Communications&Social SciencesUniversity Canada WestVancouver V6Z O5ECanada

In recent years,the fields of big data and machine learning have gained significant attention for their potential to revolutionize decision-making *** vast amounts of data generated by various sources can provide.v.luable insights to inform decisions across a range of domains,from business and finance to healthcare and social *** learning algorithms enable computers to learn from data and improve their performance over time,thereby enhancing their ability to make predictions and identify *** article provides a comprehensive ove.v.ew of how big data and machine learning can improve decision-making processes between *** covers key concepts and techniques involved in these tools,including data collection,data preprocessing,feature selection,model training,and *** article also discusses the potential benefits and limitations of these tools and explores the ethical and privacy concerns associated with their *** particular,it highlights the need for transparency and fairness in decision-making algorithms and the importance of protecting individuals’privacy *** review concludes by highlighting future research opportunities and challenges in this rapidly evolving field,including the need for more robust and interpretable models,as well as the integration of human decision making with machine learning ***,this review aims to provide insights for researchers and practitioners seeking to leverage big data and machine learning to improve decision-making processes in various domains.

关键词： privacy big data machine learning cybersecurity decision making

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Covalent linkage of sulfated hyaluronan to the collagen scaffold Mucograft® enhances scaffold stability and reduces proinflammatory macrophage activation in vivo

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Bioactive Materials 2022年第2期7卷 420-434页

作者： Sarah Al-Maawi Sandra Rother Norbert Halfter Karen M.Fiebig Juliane Moritz Stephanie Moeller Matthias Schnabelrauch Charles James Kirkpatrick Robert Sader Hans-Peter Wiesmann Dieter Scharnweber vera Hintze Shahram Ghanaati Clinic for Maxillofacial and Plastic Surgery Goethe UniversityFrankfurt Am MainGermany institute of Materials Science Max Bergmann Center of BiomaterialsTU DresdenBudapester Str.2701069DresdenGermany Biomaterials Department INNOVENT e.V.Prüssingstr.27B07745JenaGermany Department of Cellular and Molecular Medicine Glycobiology Research and Training CenterUniversity of CaliforniaSan DiegoLa JollaCAUSA

Sulfated glycosaminoglycans(sGAG)show interaction with biological mediator *** collagen-based biomaterials are widely used in clinics,their combination with high-sulfated hyaluronan(sHA3)is *** study aims to functionalize a collagen-based scaffold(Mucograft®)with sHA3 via electrostatic(sHA3/PBS)or covalent binding to collagen fibrils(sHA3+eDC/NHS).Crosslinking without sHA3 was used as a control(eDC/NHS Ctrl).The properties of the sHA3-functionalized materials were *** vitro growth factor and cytokine release after culturing with liquid platelet-rich fibrin was performed by means of *** cellular reaction to the biomaterials was analyzed in a subcutaneous rat *** study revealed that covalent linking of sHA3 to collagen allowed only a marginal release of sHA3 over 28 days in contrast to electrostatically bound ***3+eDC/NHS scaffolds showed reduced vascular endothelial growth factor(veGF),transforming growth factor beta 1(TGF-β1)and enhanced interleukin-8(IL-8)and epithelial growth factor(eGF)release in vitro compared to the other *** sHA3/PBS and eDC/NHS Ctrl scaffolds showed a high proinflammatory reaction(M1:CD-68+/CCR7+)and induced multinucleated giant cell(MNGC)formation in *** sHA3+eDC/NHS scaffolds reduced the proinflammatory macrophage M1 response and did not induce MNGC formation during the 30 ***3+eDC/NHS scaffolds had a stable structure in vivo and showed sufficient integration into the implantation region after 30 days,whereas eDC/NHS Ctrl scaffolds underwent marked disintegration and lost their initial *** summary,functionalized collagen(sHA3+eDC/NHS)modulates the inflammatory response and is a promising biomaterial as a stable scaffold for full-thickness skin regeneration in the future.

关键词： Sulfated hyaluronan Collagen Wound healing Cellular reaction Multinucleated giant cells

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Diabetes and pulmonary infection:how hyperglycaemia shapes the immune system

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1245-1246页

作者： Christian Herder Michael Roden Nicolas venteclef institute for Clinical Diabetology German Diabetes CenterLeibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf40225DüsseldorfGermany German Center for Diabetes Research(DZD) Partner Düsseldorf85764München-NeuherbergGermany Department of endocrinology and Diabetology Medical Faculty and University Hospital DüsseldorfHeinrich Heine University Düsseldorf40225DüsseldorfGermany institut Necker-enfants Malades(INeM) UniversitéParis CitéINSERM UMR-S1151CNRS UMR-S8253ParisFrance

In a recent study published in Nature,Nobs and colleagues aimed to identify novel mechanisms that may explain why diabetes is associated with an increased susceptibility to viral respiratory *** analyses revealed a central role of lung dendritic cells(DC)which exhibited several functional defects induced by hyperglycaemia and consequently result in impaired antiviral immune responses.

关键词： impaired lung respiratory

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Synthesis of quinazolinones from o-aminobenzamides and benzyl amines under metal-free conditions

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Chinese Chemical Letters 2016年第1期27卷 21-24页

作者： Xin-Xin Qi Zhen-Zhen Song Jin-Long Gong Zheng-Yu Fang Xiao-Feng Wu Department of Chemistry Zhejiang Sci-Tech University Xiasha Campus Hangzhou 310018 China Department of Anal-colorectal Surgery the First Affiliated Hospital of Zhejiang Chinese Medical University Hangzhou 310006 China Leibniz-institut für Katalyse e.v. an der Universit t Rostock 18059 Rostock Germany

A convenient and transition-metal free protocol for quinazolinones synthesis with o-aminobenzamides and benzyl amines as substrates has been developed. Using H;O;as the oxidant, various quinazolinones were obtained in... 详细信息

关键词： Quinazolinones Metal-free Benzyl amine H2O2

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Proteome Analyses of Hepatocellular Carcinoma

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Journal of Clinical and Translational Hepatology 2014年第1期2卷 23-30页

作者： Dominik A.Megger Wael Naboulsi Helmut e.Meyer Barbara Sitek Medizinisches Proteom-Center Ruhr-Universit(a)t Bochum Bochum Germany Medizinisches Proteom-Center Ruhr-Universit(a)t Bochum Bochum Germany Leibniz-institut für Analytische Wissenschaften ISAS-e.v. Dortmund Germany

Proteomics has evolved into a powerful and widely used bioanalytical technique in the study of cancer,especially hepatocellular carcinoma (HCC).In this review,we provide an up to date ove.v.ew of feasible proteome-analytical techniques for clinical *** addition,we present a broad summaryof proteornic studies of HCC utilizing various technical approaches for the analysis of samples derived from diverse sources like HCC cell lines,animal models,human tissue and body fluids.

关键词： Proteomics Quantitative analysis Hepatocellular carcinoma Biomarker Cell lines Animal models Tissue samples

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Neural network learns physical rules for copolymer translocation through amphiphilic barriers

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npj Computational Materials 2020年第1期6卷 1039-1046页

作者： Marco Werner Yachong Guo vladimir A.Baulin institute Theory of Polymers Leibniz-Institut für Polymerforschung Dresden e.V.Hohe Straße 601069 DresdenGermany Departament d’enginyeria Química Universitat Rovira i Virgili26 Av.dels Paisos Catalans43007 TarragonaSpain Kuang Yaming Honors School Nanjing University22 Hankou Road210093 NanjingChina

Recent developments in computer processing power lead to new paradigms of how problems in many-body physics and especially polymer physics can be *** processors can be exploited to generate millions of molecular configurations in complex e.v.ronments at a second,and concomitant free-energy landscapes can be *** that are complete in terms of polymer sequences and architecture form a powerful training basis for cross-checking and verifying machine learning-based *** employ an exhaustive enumeration of polymer sequence space to benchmark the prediction made by a neural *** our example,we consider the translocation time of a copolymer through a lipid membrane as a function of its sequence of hydrophilic and hydrophobic ***,we demonstrate that massively parallel Rosenbluth sampling for all possible sequences of a polymer allows for meaningful dynamic interpretation in terms of the mean first escape times through the ***,we train a multi-layer neural network on logarithmic translocation times and show by the reduction of the training set to a narrow window of translocation times that the neural network develops an internal representation of the physical rules for sequencecontrolled diffusion *** on the narrow training set,the network result approximates the order of magnitude of translocation times in a window that is several orders of magnitude wider than the training *** investigate how prediction accuracy depends on the distance of unexplored sequences from the training window.

关键词： neural network narrow

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Neddylation-dependent protein degradation is a nexus between synaptic insulin resistance,neuroinflammation and Alzheimer’s disease

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Translational Neurodegeneration 2022年第1期11卷 931-948页

作者： Alessandro Dario Confettura eleonora Cuboni Mohamed Rafeet Ammar Shaobo Jia Guilherme M.Gomes PingAn Yuanxiang Raje.v.Raman Tingting Li Katarzyna M.Grochowska Robert Ahrends Anna Karpova Alexander Dityatev Michael R.Kreutz RG Neuroplasticity Leibniz-Institute for Neurobiology39118 Magde-burgGermany German Center for Neurodegenerative Diseases(DZNe) 39120 MagdeburgGermany Center for Behavioral Brain Sciences Otto Von Guericke University39120 MagdeburgGermany Leibniz-institut Für Analytische Wissenschaften-ISAS-e.v. 44227 DortmundGermany Leibniz Group‘Dendritic Organelles and Synaptic Function’ Center for Molecular NeurobiologyZMNHUniversity Medical Center Hamburg-Eppendorf20251 Ham-burgGermany Department of Analytical Chemistry Faculty of ChemistryUniversity of Vienna1090 WienAustria Medical Faculty Otto-von-Guericke University39120 MagdeburgGermany.

Background:The metabolic syndrome is a consequence of modern lifestyle that causes synaptic insulin resistance and cognitive deficits and that in interaction with a high amyloid load is an important risk factor for Alzheimer’s *** has been proposed that neuroinflammation might be an inte.v.ning variable,but the underlying mechanisms are currently ***:We utilized primary neurons to induce synaptic insulin resistance as well as a mouse model of high-risk aging that includes a high amyloid load,neuroinflammation,and diet-induced obesity to test hypotheses on underly-ing ***:We found that neddylation and subsequent activation of cullin-RING ligase complexes induced synaptic insulin resistance through ubiquitylation and degradation of the insulin-receptor substrate IRS1 that organizes synap-tic insulin ***,inhibition of neddylation prese.v.d synaptic insulin signaling and rescued memory deficits in mice with a high amyloid load,which were fed with a’western diet’.Conclusions:Collectively,the data suggest that neddylation and degradation of the insulin-receptor substrate is a nodal point that links high amyloid load,neuroinflammation,and synaptic insulin resistance to cognitive decline and impaired synaptic plasticity in high-risk aging.

关键词： Metabolic syndrome Alzheimer’s disease Neddylation Cullins MLN-4924 Insulin IRS1 Amyloid-β TNFα

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Ultraviolet Laser Based Gas Phase Fluorination of Polystyrene

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Journal of Surface engineered Materials and Advanced Technology 2014年第5期4卷 309-317页

作者： Simon Kibben Klaus vogelsang BIAS—Bremer institut für angewandte Strahltechnik GmbH Bremen Germany INNOveNT e.v. Jena Germany

A novel hybrid process for surface fluorination of polymers is being introduced. The process is based on ultra violet (Uv) laser radiation, which on the one hand forms radicals out of an atmosphere of a partially fluorinated benzene, and on the other hand activates a polymer surface in the areas where the Uv radiation hits the surface. The radicals can react with the polymer surface, hence altering the surface energy. With this process, a fluorine content of over 30% on the surface of bulk polystyrene can be achieved, while the smallest possible structure size was smaller than 1 mm.

关键词： Uv-Laser Polymer Modification Local Fluorination

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An Innovative Submerged entry Nozzle Design for Billet and Bloom Casting

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China's Refractories 2021年第2期30卷 45-50页

作者： Gernot HACKL Yong TANG Gerald NITZL Dennis SCHURMANN Bernd WILLeRS Sven eCKeRT RHI Magnesita Leoben 8700Austria RHI Magnesita Wien 1120Austria Helmholtz Zentrum Dresden-Rossdorf e.v. Dresden 01328Germany

Fluid flow in the mold has a significant impact on the quality of continuously cast steel *** it is strongly influenced by the SeN design,attention has to be paid on its *** this paper the main principles of a novel SeN type will be *** modeling and Computational Fluid Dynamics(CFD)are applied to characterize the flow pattern under different ***,the interaction with electromagnetic stirring(M-eMS)is analyzed by means of a liquid melt ***,actual steel plant performance data and obse.v.tions are discussed.

关键词： computational fluid dynamics liquid metal modeling mold electromagnetic stirring submerged entry nozzle isostatically pressed products

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