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Light(science & Applications) 2019年第1期8卷 732-738页

作者： Michela F.Picardi Martin Neugebauer jorg s.eismann Gerd Leuchs Peter Banzer Francisco J.Rodriguez-Fortuno Anatoly V.Zayats Department of Physics and London Centre for Nanotechnology King’s College LondonStrandLondon WC2R Ls UK.2Max Planck Institute for the Science of LightStaudtstr.2D-91058 ErlangenGermany Institute of Optics Information and PhotonicsUniversity Erlangen-NurembergStaudtstr.7/B2D-91058 ErlangenGermany

The electromagnetic field scattered by nano-objects contains a broad range of wavevectors and can be efficiently coupled to waveguided *** dominant contribution to scattering from subwavelength dielectric and plasmonic nanoparticles is determined by electric and magnetic dipolar ***,we experimentally demonstrate spectral and phase selective excitation of Janus dipoles,sources with electric and magnetic dipoles oscillating out of phase,in order to control near-field interference and directional coupling to *** show that by controlling the polarisation state of the dipolar excitations and the excitation wavelength to adjust their relative contributions,directionality and coupling strength can be fully ***,we introduce a novel spinning Janus dipole featuring cylindrical symmetry in the near and far field,which results in either omnidirectional coupling or *** the propagation of guided light waves via fast and robust near-field interference between polarisation components of a source is required in many applications in nanophotonics and quantum optics.

关键词： coupling spinning excitation

spatial distribution,morphology,and risk assessment of microplastics in sediment from the Pearl River Estuary,China

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Emerging Contaminants 2024年第3期10卷 409-418页

作者： Kaiqiang Xu Asfandyar shahab jorg Rinklebe He Xiao Jieyue Li Feng Ye Yanhong Li Dunqiu Wang Michael s.Bank Gangjian Wei College of Environmental science and Engineering Guilin University of TechnologyGuilin541004China Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology Guilin541004China University of Wuppertal School of Architecture and Civil EngineeringInstitute of Foundation EngineeringWater-and Waste-ManagementLaboratory of Soil-and Groundwater-ManagementPauluskirchstraße 742285WuppertalGermany Institute of Marine Research 5817BergenNorway University of Massachusetts Amherst AmherstMA01003USA state Key Laboratory of Isotope Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou510640China

Microplastics(MPs)(64.12%)of detected MPs were<0.85 mm and primarily consisted of pellets(36.84%)and fragments(29.65%).Three polymer types of MPs were identified by Fourier Transform Infrared spectroscopy(FT-IR)includ... 详细信息

Microplastics(MPs)(significant global interest from scientists and policy *** ecosystems are vulnerable to MP pollution,and assessing their sources,fate,and transport in the environment is imperative for marine ecosystem *** for marine sediment are still limited,particularly in the Pearl River Estuary(PRE)ecosystem in ***,we assessed the abundance,characteristics,and risks of MPs in marine sediment from *** abundance ranged from 2.05×10^(3)items·kg^(-1)to 7.75×10^(3)items·kg^(-1)(dry weight),and white and black MPs were the dominant *** majority(>64.12%)of detected MPs weresisted of pellets(36.84%)and fragments(29.65%).Three polymer types of MPs were identified by Fourier Transform Infrared spectroscopy(FT-IR)including polyethylene(PE),polyethylene terephthalate(PET),and polypropylene(PP).Polyurethane(PU)sponge was reported for the first time in this study *** of the surface morphology of typical MPs using scanning Electron Microscopy(sEM)showed that all MPs exhibited varying degrees of erosion,characterized by cracks,folds,and bumpy *** on type and quantity of MPs and the polymers identified,we assessed and classified the risk of MP contamination in PRE sediment as category Ⅲ,indicating severe ecosystem *** results may serve as an effective model for other estuaries facing similar pollution regimes and provides valuable information for marine sediment risk assessment.

关键词： Microplastics Distributional characteristics surface morphology Risk assessment Pearl River Estuary

Absolute characterization of high numerical aperture microscope objectives utilizing a dipole scatterer

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Light(science & Applications) 2021年第12期10卷 2342-2348页

作者： Jörg s.eismann Martin Neugebauer Klaus Mantel Peter Banzer Institute of Physics University of GrazNAWI GrazUniversitätsplatz 58010 GrazAustria Max Planck Institute for the science of Light Staudtstr.291058 ErlangenGermany Institute of Optics Information and PhotonicsUniversity Erlangen-NurembergStaudtstr.7/B291058 ErlangenGermany

Measuring the aberrations of optical systems is an essential step in the fabrication of high precision optical *** a characterization is usually based on comparing the device under investigation with a calibrated reference ***,when working at the cutting-edge of technology,it is increasingly difficult to provide an even better or well-known reference *** this manuscript we present a method for the characterization of high numerical aperture microscope objectives,functioning without the need of calibrated reference *** technique constitutes a nanoparticle,acting as a dipole-like scatterer,that is placed in the focal volume of the microscope *** light that is scattered by the particle can be measured individually and serves as the reference wave in our *** the well-characterized scattered light as nearly perfect reference wave is the main idea behind this manuscript.

关键词： characterization scatter scattered

Disease networks. Uncovering disease-disease relationships through the incomplete interactome

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四川生理科学杂志 2024年第4期46卷 199-199页

作者： jorg Menche Center for Complex Networks Research and Department of Physics Northeastern University 110 Forsyth Street 111 Dana Research Center Boston MA 02115 USA. Center for Cancer Systems Biology (CCSB) and Department of Cancer Biology Dana-Farber Cancer Institute 450 Brookline Avenue Boston MA 02215 USA. Center for Network Science Central European University Nador u. 9 1051 Budapest Hungary. Center for Complex Networks Research and Department of Physics Northeastern University 110 Forsyth Street 111 Dana Research Center Boston MA 02115 USA. Center for Cancer Systems Biology (CCSB) and Department of Cancer Biology Dana-Farber Cancer Institute 450 Brookline Avenue Boston MA 02215 USA. Center for Cancer systems Biology (CCsB) and Department of Cancer Biology Dana-Farber Cancer Institute 450 Brookline Avenue Boston MA 02215 USA. Department of Genetics Harvard Medical School 77 Avenue Louis Pasteur Boston MA 02115 USA. Department of Medicine Brigham and Women's Hospital Harvard Medical School 75 Francis Street Boston MA 02115 USA. Center for Complex Networks Research and Department of Physics Northeastern University 110 Forsyth Street 111 Dana Research Center Boston MA 02115 USA. Center for Cancer Systems Biology (CCSB) and Department of Cancer Biology Dana-Farber Cancer Institute 450 Brookline Avenue Boston MA 02215 USA. Center for Network Science Central European University Nador u. 9 1051 Budapest Hungary. Department of Medicine Brigham and Women's Hospital Harvard Medical School 75 Francis Street Boston MA 02115 USA. alb@neu.edu.

According to the disease module hypothesis,the cellular components associated with a disease segregate in the same neighborhood of the human interactome,the map of biologically relevant molecular ***,given the incompleteness of the interactome and the limited knowledge of disease-associated genes,it is not obvious if the available data have sufficient coverage to map out modules associated with each disease.

关键词： incomplete interactions. networks.

The contribution of small leaks in a baghouse filter to dust emission in the PM2.s range-A system approach

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Particuology 2017年第1期15卷 40-52页

作者： Oliver Kurtz jorg Meyer Gerhard Kasper Institut for Mechanische Verfahrenstechnik und Mechanik Karlsruhe Institute of Technology 76131 Karlsruhe Germany Freudenberg Filtration Technologies 69465 WeinheimGermany.

The contribution of leakage in a baghouse filter （defined as a short circuit between the upstream and downstream sides of the filter） to the emission of fine particles is quantified in comparison to other dust emission sources, and the influence of key operating variables on overall system response is analyzed. The study was conducted on a well-maintained pilot-scale filter unit （9 bags of 500 g/m^2 calendered polyester needle felt; total surface area 4.2 m^2） operated in Ap-controlled mode over a range of pulsing intensities, with two types of test dust （one free-flowing and the other cohesive） at inlet concentrations of 10 and 30 g/m^3. Leaks included single holes between 0.5 and 4 mm diameter, intentionally placed in either the plenum plate or one of the filter bags, as well as seamlines from bag confectioning. Emissions were sep- arated by source into a transient contribution due to dust penetration through the filter bags after each cleaning pulse, and a continuous contribution from leaks. This separation was based on a novel method of data processing that relies on time-resolved concentration measurements with a specially calibrated optical particle counter. Tiny leaks on the order of 1 mm generated the same emission level as all the bags combined, and dominated continuous emissions. The equivalent leak cross section （leakage = media emission） was about 1 ppm of the total installed filter surface, independent of upstream dust concentra- tion. Leakage through open seamlines amounted to 75% of media emissions in case of free-flowing test dust. Leakage was restricted to aerodynamic diameters less than ~5 μm （roughly the PM2.s mass frac- tion）. For comparison, time-averaged mass penetration through conventional needle-felt media ranged from about 10^-5 to 10^-6, depending on cohesiveness of the particle material and pulse cleaning intensity, giving emission levels between about 0.02 and 0.2 mg/m^3 at the reference concentration of 10 R/m^2.

关键词： Air filtration Baghouse Pulse-cleaned filters Leaks PM2.5 Dust emission

CFD based extraction column design-Chances and challenges

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Chinese Journal of Chemical Engineering 2016年第2期24卷 259-263页

作者： Mark W.Hlawitschka Menwer M.Attarakilh samer s.Alzyod Hans-jorg Bart Chair of separation science and Technology POB 3049TU KaiserslauternKaiserslautern 67653Germany Center for Computational and Mathematical Modelling(CM2) TU KaiserslauternKaiserslautern 67653Germany University of Jordan Department of Chemical Engineering11942 AmmanJordan

This paper shows that one-dimensional （I-D） [and three-dimensional （3-D） computational fluid dynamics （CFD）] simulations can replace the state-of-the-art usage of pseudo-homogeneous dispersion or back mixing models. This is based on standardized lab-scale cell experiments for the determination of droplet rise, breakage, coalescence and mass transfer parameters in addition to a limited number of additional mini-plant experiments with original fluids. Alternatively, the hydrodynamic parameters can also be derived using more sophisticated 3- D CFD simulations. Computational 1-D modeling served as a basis to replace pilot-plant experiments in any column geometry. The combination of 3-D CFD simulations with droplet population balance models （DPBM） increased the accuracy of the hydrodynamic simulations and gave information about the local droplet size. The high computational costs can be reduced by open source CFD codes when using a flexible mesh generation. First combined simulations using a three way coupled CFD/DPBM/mass-transfer solver pave the way for a safer design of industrial-sized columns, where no correlations are available.

关键词： CFD DPBM Column design

Amyloid β and free heme：bloody new insights into the pathogenesis of Alzheimer＇s disease

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Neural Regeneration Research 2018年第7期13卷 1170-1174页

作者： jorg Flemmig Marcel Zámocky A Alia Institute for Medical Physics and Biophysics Medical Faculty Leipzig University Leipzig Germany Institute of Molecular Biology Slovak Academy of Sciences Bratislava Slovakia Institute of Chemical Environmental and Biological Engineering Faculty of Technical Chemistry Vienna University of Technology Vienna Austria Leiden Institute of Chemistry Faculty of Science Leiden University Leiden The Netherlands

The cerebral formation of Amyloid β（Aβ） is a critical pathological feature of Alzheimer＇s disease（AD）.An accumulation of this peptide as senile plaques（sP） was already reported by Alois Alzheimer,the discoverer of the *** the exact contribution of Aβ to AD development remains ***,while extensive cerebral Aβ formation leads to fibril formation in many species,AD-like symptoms apparently depend on the highly conserved N-terminal residues R5,Y10 and *** amino acids were also shown to lead to the formation of Aβ-heme complexes,which exhibit peroxidase activity in the presence of H_2O_*** together these observations we propose that the formation and enzymatic activity of the named complexes may represent an essential aspect of AD ***,Aβ is also known to lead to cerebral micro-vessel destruction（CAA） as well as to hemolytic *** we suggest that the Aβ-derived cerebral accumulation of blood-derived free heme represents a likely precondition for the subsequent formation of Aβ-heme complexes.

关键词： Alzheimer's disease amyloid β sequence amyloid β-heme complexes peroxidase activity dityrosine formation cerebral amyloid angiopathy hemolysis

Ponseti method compared with soft-tissue release for the management of clubfoot:A meta-analysis study

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World Journal of Orthopedics 2013年第3期4卷 144-153页

作者： Marios G Lykissas Alvin H Crawford Emily A eismann Junichi Tamai Division of Pediatric Orthopaedic surgery Cincinnati Children’s Hospital Medical CenterCincinnatiOH 45229United States

AIM: To compare the functional outcomes of patients who underwent open surgery vs Ponseti method for the management of idiopathic clubfoot and to determine whether correlations exist between functional outcome and radiographic ***: A meta-analysis of the literature was conducted for studies concerning primary treatment of patients with idiopathic clubfoot. We searched PubM ed Medline, EMBAsE, and the Cochrane Library databases from January 1950 to October 2011. Meta-analyses were performed on outcomes from 12 studies. Pooled means, sDs, and sample sizes were either identified in the results or calculated based on the results of each ***: Overall, 835 treated idiopathic clubfeet in 516 patients were reviewed. The average follow-up was 15.7 years. Patients managed with Ponseti method did have a higher rate of excellent or good outcome than patients treated with open surgery(0.76 and 0.62, respectively), but not quite to the point of statistical significance(Q = 3.73, P = 0.053). Age at surgery wasnot correlated with the functional outcome for the surgically treated patients(r =-0.32, P = 0.68). A larger anteroposterior talocalcaneal angle was correlated with a higher rate of excellent or good outcomes(r = 0.80, P = 0.006). There were no other significant correlations between the functional and radiographic ***: The Ponseti method should be considered the initial treatment of idiopathic clubfeet, and open surgery should be reserved for clubfeet that cannot be completely corrected.

关键词： Idiopathic clubfoot Congenital talipes equinovarus Ponseti method surgical release Ponseti-Laaveg score

A fouling suppression system in submerged membrane bioreactors using dielectrophoretic forces

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Journal of Environmental sciences 2015年第3期27卷 139-145页

作者： Alaa H.Hawari Fei Du Michael Baune jorg Thming Department of Civil and Architectural Engineering College of Engineering Qatar University Center of Environmental Research and sustainable Technology University of Bremen

A novel method was developed to suppress membrane fouling in submerged membrane bioreactors. The method is based on the dielectrophoretic （DEP） motion of particles in an inhomogeneous electrical field. Using a real sample ofbiomass as feed, the fouling-suppression performance using DEP with different electrical field intensities （60-160 V） and different frequencies （50-1000 Hz） was investigated. The fouling-suppression performance was found to relate closely with the intensity and frequency of the electrical field. A stronger electrical field was found to better recover the filtrate flux. This is because of a stronger DEP force acting on the biomass par[ides close to the membrane＇s surface. Above an intensity and frequency value of 130 V and 1 kHz, respectively the permeate flux was reduced due to an electrothermal effect.

关键词： submerged membrane bioreactor Dielectrophoresis Inhomogeneous electric field Fouling

Differential Privacy via a Truncated and Normalized Laplace Mechanism

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Journal of Computer science & Technology 2022年第2期37卷 369-388页

作者： William Croft jorg-Rudiger sack Wei shi school of Computer science Carleton UniversityOttawa K1S 5B6Canada school of Information Technology Carleton UniversityOttawa K1S 5B6Canada

When querying databases containing sensitive information,the privacy of individuals stored in the database has to be *** guarantees are provided by differentially private mechanisms which add controlled noise to the query ***,most such mechanisms do not take into consideration the valid range of the query being ***,noisy responses that fall outside of this range may potentially be *** rectify this and therefore improve the utility of the mechanism,the commonly-used Laplace distribution can be truncated to the valid range of the query and then ***,such a data-dependent operation of normalization leaks additional information about the true query response,thereby violating the differential privacy ***,we propose a new method which preserves the differential privacy guarantee through a careful determination of an appropriate scaling parameter for the Laplace *** adapt the privacy guarantee in the context of the Laplace distribution to account for data-dependent normalization factors and study this guarantee for different classes of range constraint *** provide derivations of the optimal scaling parameter(i.e.,the minimal value that preserves differential privacy)for each class or provide an approximation *** a result of this work,one can use the Laplace distribution to answer queries in a range-adherent and differentially private *** demonstrate the benefits of our proposed method of normalization,we present an experimental comparison against other range-adherent *** show that our proposed approach is able to provide improved utility over the alternative mechanisms.

关键词： differential privacy Laplace mechanism query range constraint