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Hybrid silver nanoparticles:Modes of synthesis and various biomedical applications

Electron 2024年第2期2卷 196-218页

作者： Priyanka Singh Shivang Singh Balaji Maddiboyina SaiKrishna Kandalam tomasz Walski Raghvendra A.Bohara Centre for Interdisciplinary Research D.Y.Patil Educational SocietyKolhapurIndia Department of Internal Medicine Rauta Hospital Pvt.LtdGaighatUdayapurNepal Department of Medical and Scientific Communications Scientific Writing ServicesFreyr Global Regulatory Solutions&ServicesHyderabadTelanganaIndia INSERM U 1066 ‘Micro et Nanomédecines Biomimétiques-MINT’AngersFrance UniversitéAngers UMR-S1066AngersFrance Department of Biomedical Engineering Wroclaw University of Science and TechnologyWroclawPoland University of Galway

In the present day,there is a growing trend of employing new strategies to synthesize hybrid nanoparticles,which involve combining various functionalities into a single nanocomposite *** modern methods differ significantly from the traditional classical approaches and have emerged at the forefront of materials *** fabrication of hybrid nanomaterials presents an unparalleled opportunity for applica-tions in a wide range of areas,including therapy to *** focus of this review article is to shed light on the different modalities of hybrid nanoparticles,providing a concise description of hybrid silver nano-particles,exploring various modes of synthesis and classification of hybrid silver nanoparticles,and highlighting their ***-tionally,we discussed core-shell silver nanoparticles and various types of core and shell combinations based on the material category,such as dielectric,metal,or *** two primary classes of hybrid silver nanoparticles were also ***,various hybrid nanoparticles and their methods of synthesis were discussed but we emphasize silica as a suitable candidate for hybridization alongside metal *** choice is due to its hydrophilic surface qualities and high surface charge,which provide the desired repulsive forces to minimize aggregation between the metal nanoparticles in the liquid *** shell encapsulation also provides chemical inertness,robustness and the adaptability to the desired hybrid ***,among all the materials used to coat metal nanoparticles;silica is highly approved.

关键词： biomedical applications hybrid silver nanoparticles polyvinylpyrrolidone silica shell surface enhanced Raman spectroscopy

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Acute coalescent mastoiditis in a 16-month-old child due to Streptococcus pneumoniae infection

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Journal of Acute Disease 2024年第1期13卷 36-39页

作者： Magdalena Pszczołowska Monika Morawska-Kochman Katarzyna Resler Katarzyna Pękalska tomasz Zatoński Department and Clinic of Otolaryngology Head and Neck SurgeryWrocław Medical UniversityBorowska 213WrocławPoland Department of General Radiology Interventional Radiology and NeuroradiologyWrocław Medical UniversityBorowska 213WrocławPoland

Rationale:Acute otitis media is a common disease in early childhood,and is usually caused by Streptococcus pneumoniae(***).Acute mastoiditis is a complication of acute otitis media and can involve not only the mucoperiosteum of the middle ear but can also spread to the periosteum by destroying the mastoid bone(acute coalescent mastoiditis).In addition,the infection can extend through the surrounding bones or the emissary veins beyond the mastoid’s air cells,leading to subperiosteal ***’s Concern:A 16-month-old female patient was hospitalized due to the purulent discharge of the left ear and the symptoms of right mastoiditis(swelling and redness of the skin).Diagnosis:Bilateral acute coalescent mastoiditis caused by *** *** computer tomography revealed bilateral bone destruction of the mastoid and abscesses found behind the auricle on both ***:The patient underwent intravenous antibiotic therapy and surgical ***:The patient was discharged 14 days after hospitalization with an improved ***:Improperly treated acute coalescent mastoiditis can lead to extracranial and intracranial complications,sometimes serious and even *** are prevalent in children under 2 years,in whom the disease progresses more rapidly and *** vaccination with a 13-valent vaccine may not result in sufficient immunity against ***,a predominant pathogen in children affected by acute coalescent mastoiditis.

关键词： Acute otitis media Acute coalescent mastoiditis Streptococcus pneumoniae Children Case report

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Numerical Prediction of Film Cooling Effectiveness over Flat Plate using Variable Turbulent Prandtl Number Closures

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Journal of Thermal Science 2016年第3期25卷 280-286页

作者： tomasz Ochrymiuk Institute of Fluid-Flow Machinery Polish Academy of Sciences(IMP PAN)

Numerical simulations were performed to predict the film cooling effectiveness on the fiat plate with a three- dimensienal discrete-hole film cooling arrangement. The effects of basic geometrical characteristics of the holes, i.e diameter D, length L and pitch S/D were studied. Different turbulent heat transfer models based on constant and variable turbulent Prandtl number approaches were considered. The variability of the turbulent Prandtl number Prt in the energy equation was assumed using an algebraic relation proposed by Kays and Crawford, or employing the Abe, Kondoh and Nagano eddy heat diffusivity closure with two differential transport equations for the temperature variance ko and its destruction rate εθ The obtained numerical results were directly compared with the data that came from an experiment based on Transient Liquid Crystal methodology. All implemented models for turbulent heat transfer performed sufficiently well for the considered case. It was confirmed, however, that the two- equation closure can give a detailed look into film cooling problems without using any time-consuming and inherently unsteady models.

关键词： turbulent heat flux two-equation model turbulent Prandtl number film cooling

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Numerical Analysis of Microholes Film/Effusion Cooling Effectiveness

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Journal of Thermal Science 2017年第5期26卷 459-464页

作者： tomasz Ochrymiuk Institute of Fluid-Flow Machinery Polish Academy of Sciences (IMP PAN) Fiszera 14 80-952 Gdansk

Numerical simulations were performed to predict the film cooling effectiveness on the fiat plate with a three-dimensional discrete hole film cooling RSM-AKN turbulent heat transfer models based on variable turbulent Prandtl number approaches were considered. Obtained numerical results were directly compared with the data that came from an experiment based on Transient Liquid Crystal methodology. All implemented models for turbulent heat transfer performed sufficiently well for the considered case. It was confirmed, however, that the two-equation closure can give a detailed look into film cooling problems without using any time-consuming and inherently unsteady models. The RSM-AKN turbulent model was used in micoholes case too. The main target of simulations was maintain the same level of cooling efficiency ratio in both cases and confirm that is possible significantly reduce mass flows of the coolant in microholes case.

关键词： turbulent heat flux two-equation model turbulent Prandtl number film cooling microholes

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Recreational potential as an indicator of accessibility control in protected mountain forest areas

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Journal of Mountain Science 2017年第7期14卷 1419-1427页

作者： tomasz DUDEK Department of Agroecology University of Rzeszów

The article presents research findings related to recreational use of forests located in protected mountainous areas with forestage of over 80%. The study was designed to identify recreational potential of the Carpathian national parks （Bieszczady National Park, Bahia G6ra National Park, Goree National Park and Magura National Park; southern Poland） and to compare these findings with the actual number of visitors. The information received on the recreational potential of parks is important from the point of view of protection of natural resources and the financial situation of the parks. The calculated ratio may be an effective tool of management for park administration, that allows to reconcile statutory social and protective functions of national parks. The study determined the recreational potential of the forests with the use of recreational valorisation method designed for areas with varied terrain, and the evaluated factors included the stands of trees with their habitat and land relief. The permissible number of national park visitors, expressed as man- hour/ha/year ranges from 19.31 in Bieszczady National Park （BG： 19~ 35＇ E, 49~ 35＇ N） to 32.06 in in Bieszczady National Park （B： 22~ 40＇ E, 49~ lo＇ N）. In 3 out of 4 investigated parks, Magura National Park （M： 21025＇ E, 49~ 30＇ N）, Gorce National Park （G： 20~ lo＇ E, 49~ 35＇ N）, B） recreation carrying capacity was not exceeded, whether or not the strictly protected area is taken into account. Only in BG was the recreation carrying capacity exceeded by nearly 24%, or by 85% if the strictly protected area isexcluded from tourism-related exploitation. The presented procedure for monitoring access to mountain forests in national parks, from the viewpoint of natural resources conservation, can be applied in other mountainous areas covered with forests and exposed to tourist and recreational traffic, and in forests facing particular risk of recreational damage, e.g. in urban and suburban forests growing in areas wi

关键词： Forest recreation Recreational capacity Protected areas Mountain forests the Carpathians

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n-transitivity of Bisection Groups of a Lie Groupoid

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Acta Mathematica Sinica,English Series 2017年第8期33卷 1061-1072页

作者： tomasz RYBICKI AGH University of Science and Technology Faculty of Applied Mathematicsal.Mickiewicza 3030-059 KrakdwPoland

The notion of n-transitivity can be carried over from groups of diffeomorphisms on a manifold M to groups of bisections of a Lie groupoid over M. The main theorem states that the n-transitivity is fulfilled for all n ∈N by an arbitrary group of Cr-bisections of a Lie groupoid F of class Cr, where 1 ≤ r ≤ ω, under mild conditions. For instance, the group of all bisections of any Lie groupoid and the group of all Lagrangian bisections of any symplectic groupoid are n-transitive in the sense of this theorem. In particular, if F is source connected for any arrow γ∈ Г, there is a bisection passing through γ.

关键词： Lie groupoid bisection n-transitivity locality symplectic groupoid Lagrangian bisection

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Analysis of erosion rill development under rainfall events using structure-from-motion photogrammetry——a case study from Kielce(Holy Cross Mts.,Poland)

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Journal of Mountain Science 2022年第5期19卷 1231-1244页

作者： Piotr tomasz KOPYSC Jan Kochanowski University Institute of Geography and Environmental SciencesUniwersytecka 725-406 KielcePoland

The development of erosive landforms such as rills,ditches,slits,and gullies depends on many environmental factors;thus,the rate of the development of each individual form *** this paper,the author presents a case study of two erosion rills located on a hiking trails(Holy Cross Mts.)resulting after 2 years of monitoring in which the process of their evolution was precisely *** established,such landforms develop over time with variable rates and can represent multiple different ***,the final result of the rill development hardly reminds their original form and does not allow for interpretation of the events that affected it in the recent ***,the main objective was to determine the volumetric changes of erosion rills created by the surface runoff on both sections,during two years of *** objectives included a description of the physical and meteorological parameters,important in the development process and a comparison of them to the volumetric changes of each *** the Structure-from-motion(Sf M)photogrammetry technique,monitoring procedures have been performed quickly offering sufficient *** direct comparison,the digital elevation model of difference(Do D)method was used,enabling the calculation of *** results showed that the erosion to deposition ratio was more disproportionate during storm events or periods with higher depth of *** erosion to deposition balance for the entire monitoring period was negative and equal to 1448.84 kg or 410 Mg/ha for the first erosion rill and 1059.5 kg or 300 Mg/ha for the second *** erosion rills developed *** first erosion rill developed by linear cut into deeper and wider form,while the other,steeper rill,evolved from plunge pools merging together into deeper and wider form.

关键词： Erosion SfM DoD Rainfall Microtopography

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Graph representation of n-dimensional space

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Advances in Manufacturing 2014年第1期2卷 54-60页

作者： tomasz Kosicki Department of Production and Quality Engineering Norwegian University of Science and Technology

This paper investigates how graph representation can be created for the mesh which is a discrete approximation of n-dimensional continuous space. The paper discusses the relationship between mesh dimensionality and the type and quantity of edges connecting each vertex with its neighbors. Basing on the analysis, a simple algorithm is also proposed to create such graph representation. The purpose of the graph is to search optimal paths and trajectories in the represented space.

关键词： Trajectory optimization Path optimization Graph search algorithms

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Urban green resilience: Experience from post-industrial cities in Poland

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Geoscience Frontiers 2023年第4期14卷 160-172页

作者： tomasz Starczewski Krzysztof Rogatka Anita Kukulska-Kozie tomasz Noszczyk Katarzyna Cegielska Nicolaus Copernicus University Doctoral School of Social Sciences1 Bojarskiego Street87-100 TorunPoland Nicolaus Copernicus University Faculty of Earth Sciences and Spatial ManagementDepartment of Urban and Regional Development Studies1 Lwowska Street87-100 TorunPoland University of Agriculture in Krakow Faculty of Environmental Engineering and Land SurveyingDepartment of Land Management and Landscape Architecture21 Mickiewicza Avenue31-120 KrakowPoland

De-industrialisation triggered economic,spatial and environmental changes in ***,this study identifies whether there has been a reorientation of spatial development in post-industrial cities towards the creation of green *** aim of the study is to analyse and evaluate the transformation of green spaces in 32 major cities in Poland,including 12 post-industrial *** sources were vector land cover data models from the Urban Atlas for 2006 and 2018,administrative boundaries from the National Boundary Register and building layers from the Topographic Objects *** research procedure was carried out using the GIS environment,through spatial analysis,geoprocessing algorithms,and spatial *** results have shown that post-industrial cities do not develop their urban resi-lience based on the expansion of green spaces and,consequently,do not build green urban *** addition,the research has proven that the greatest loss of green spaces is noticeable in parts of post-industrial cities with medium and high development intensity,where there is an intensification of con-struction *** dominant direction of the transformation of green spaces has been the conversion of agricultural areas into green spaces(87.79%).In contrast,the main direction of loss in green space has been the creation of new industrial units(24.80%)and the expansion of the urban fabric(23.53%).The article is original due to the fact that there is a gap in the literature regarding the study of green spaces in post-industrial cities with regard to the concept of green urban resilience.

关键词： Green spaces Spatial analysis Land cover transformation Development Anthropopressure Degradation

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The Symbolic Extension Theory in Topological Dynamics

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Acta Mathematica Sinica,English Series 2022年第1期38卷 107-136页

作者： tomasz DOWNAROWICZ Guo Hua ZHANG Faculty of Pure and Applied Mathematics Wroclaw University of Science and TechnologyWybrze˙ze Wyspia′nskiego 2750-370 WroclawPoland School of Mathematical Sciences and Shanghai Center for Mathematical Sciences Fudan UniversityShanghai 200433P.R.China

In this survey we will present the symbolic extension theory in topological dynamics,which was built over the past twenty years.

关键词： Symbolic extension (symbolic)extension entropy function entropy structure superenvelope principal extension asymptotic h-expansiveness amenable group F?lner sequence tiling system quasi-symbolic extension residually finite group comparison property subexponential group

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