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Entangled-photons generation with quantum dots

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Chinese Physics B 2018年第2期27卷 140-153页

作者：李远丁飞 oliver g Schmidt Institute for Integrative Nanosciences IFW Dresden HelmholtzstraBe 20. 01069 Dresden. Germany Integrative for Solid State Physics. Leibniz University of Hunnover. AppelstBe 2.30 167 Hannovel germany

Entanglement between particles is a crucial resource in quantum information processing, an important example of which is the exploitation of entangled photons in quantum communication protocols. Among the different available sources of entangled photons, semiconductor quantum dots （QDs） excel owing to their deterministic emission properties, potential for electrical injections, and direct compatibility with semiconductor manufacturing techniques. Despite the great promises, QD-based sources at＇e far from being ideal. In particular, such sources present several critical issues, which require the overcoming of challenges pertaining to spectral tunability, entanglement fidelity, photon indistinguishability and brightness. In this article, we will discuss the potential solutions to these problems and review the recent progress in the field.

关键词： quantum information entangled-photon source quantum dots

Nano energy for miniaturized systems

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Nano Materials Science 2021年第2期3卷 107-112页

作者： Minshen Zhu Feng Zhu oliver g.Schmidt Institute for Integrative Nanosciences Leibniz IFW Dresden01069DresdenGermany State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences130022ChangchunChina Material Systems for Nanoelectronics Chemnitz University of Technology09107ChemnitzGermany Center for Materials Architectures and Integration of Nanomembranes(MAIN)Chemnitz University of Technology09126ChemnitzGermany School of Science Dresden University of TechnologyGermany

Skin mountable electronic devices are in a high-speed development at the crossroads of materials science,electronics,and computer *** functions,such as sensing,actuating,and computing,are integrated into a soft electronic device that can be firmly mounted to any place of human *** advanced electronic devices are capable of yielding abilities for us whenever they are needed and even expanding our abilities beyond their natural *** the great promise of skin mounted electronic devices,they still lack satisfactory power supplies that are safe and *** Perspective discusses the prospects of the development of energy storage devices for the next generation skin mountable electronic devices based on their unique requirements on flexibility and miniaturized size.

关键词： Micro-energy-storage devices Wearability Flexibility Electronics

Editorial for a special issue“Nano energy materials and devices for miniaturized electronics and smart systems”

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Nano Materials Science 2021年第2期3卷 105-106页

作者： Feng Zhu oliver g.Schmidt Changchun Institute of Applied Chemistry China Leibniz IFW DresdenGermany Chemnitz Chemnitz University of Technology Germany

The Smart Era urgently demands small-size, low-energy consuming and multi-functional devices which can satisfy versatile application scenarios, including autonomous systems, wireless sensor networks,biomedical equipment, wearable gadgets, and the Internet of *** overwhelming trend has drawn much attention and stimulates intensive collaborative efforts spanning diverse fundamental and applied research related to energy generation-harvesting-storage-managementapplications at the small scale. For instance, on one hand.

关键词： energy smart versatile

Insect host-parasite coevolution in the light of experimental evolution

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Insect Science 2014年第4期21卷 401-414页

作者： Niels A. g. Kerstes oliver Y. Martin Experimental Ecology Institute for Integrative Biology D-USYS ETH Zurich

The many ways parasites can impact their host species have been the focus of intense study using a range of approaches. A particularly promising but under-used method in this context is experimental evolution, because it allows targeted manipulation of known populations exposed to contrasting conditions. The strong potential of applying this method to the study of insect hosts and their associated parasites is demonstrated by the few available long-term experiments where insects have been exposed to parasites. In this review, we summarize these studies, which have delivered valuable insights into the evolution of resistance in response to parasite pressure, the underlying mechanisms, as well as correlated genetic responses. We further assess findings from relevant artificial selection studies in the interrelated contexts of immunity, life history, and reproduction. In addition, we discuss a number of well-studied Tribolium castaneum-Nosema whitei coevolution experiments in more detail and provide suggestions for research. Specifically, we suggest that future experiments should also be performed using nonmodel hosts and should incorporate contrasting experimental conditions, such as population sizes or envi- ronments. Finally, we expect that adding a third partner, for example, a second parasite or symbiont, to a host-parasite system could strongly impact （co）evolutionary dynamics.

关键词： artificial selection immunity Nosema reproduction resistance Tribolium

Light-Driven Ion Transport in Nanofluidic Devices:Photochemical,Photoelectric,and Photothermal Effects

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CCS Chemistry 2022年第1期4卷 54-65页

作者： Kai Xiao oliver g.Schmidt Department of Biomedical Engineering Southern University of Science and Technology(SUSTech)Shenzhen 518055 Center for Materials Architectures and Integration of Nanomembranes(MAIN)Chemnitz University of TechnologyChemnitz 09126 Institute for Integrative Nanosciences Leibniz IFW DresdenDresden 01069

Light-driven ion transport in nanofluidic devices is a phenomenon where ions move unidirectionally by consuming optical energy,either from low concentration to high concentration or vice *** light-driven unidirectional ion transport offers intriguing application potential in desalination and ion separation,osmosis energy harvesting,and ionic machines benefiting from the remote noncontact light ***,we review recent progress in nanofluidic-based light-driven ion transport systems and emphasize similarities and differences in the three underlying working principles based on photochemical,photoelectric,and photothermal *** current challenges and future developments of light-driven ion transport in nanofluidic devices are *** believed that this article encourages further innovation in this exciting and emerging research field.

关键词： nanofluidic artificial ion pump nanochannel ion transport photoelectric effect

Sulphite measurement and its influence on Hg behaviour in wet-limestone flue-gas desulphurization

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Clean Energy 2020年第4期4卷 360-371页

作者： Ida Masoomi Sophia Bruttel Marc oliver Schmid günter Scheffknecht Univ.-Prof.Dr.techn.günter Scheffknecht University of StuttgartInstitute of Combustion and Power Plant Technology—IFKPfaffenwaldring 23D-70569 StuttgartGermany

The most abundant and typical reducing agent for oxidized mercury in the slurry of wet flue-gas desulphurization(FgD)is the absorbed sulphur dioxide(SO_(2)),which is present as different species of bisulphite or sulphite,depending on the pH of the *** this study,two different measurement principles for continuous sulphite measurement in the slurry of lab-scale FgD were investigated to check their feasibility to be implemented in a wet *** first method is based on light absorbance at the characteristic wavelength of sulphite measurement using a spectrophotometer and,in the second method,sulphite is measured as sulphur dioxide using a gas *** addition,the correlation of sulphite concentration and mercury(Hg)in the slurry can be shown by measuring sulphite *** was concluded that using a spectrophotometer leads to distorted *** contrast,measuring sulphite as SO2 in the gas phase proved to be more *** implementation of the measurement technique in the lab-scale FgD showed promising results for sulphite ***,the correlation of Hg and sulphite concentration could be shown at different synthetic slurries containing different *** a slurry without halides demonstrated the ambivalent influence of sulphite in reactions involving Hg,in which sulphite acts as a ligand for Hg complexes as well as a reducing agent,depending on the existing ***,in the presence of halides,the role of sulphite was less significant.

关键词： flue-gas cleaning flue-gas desulphurization mercury re-emission sulphite measurement

Optimal Deep Convolutional Neural Network with Pose Estimation for Human Activity Recognition

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Computer Systems Science & Engineering 2023年第2期44卷 1719-1733页

作者： S.Nandagopal g.Karthy A.Sheryl oliver M.Subha Department of Computer Science and Engineering Nandha College of TechnologyErode638052TamilnaduIndia Department of Electronics and Communication Engineering Kalasalingam Academy of Research and EducationKrishnankoil626126TamilnaduIndia Department of Computer Science and Engineering St.Joseph's College of EngineeringChennai600119TamilnaduIndia Department of Electronics and Communication Engineering University College of Engineering NagercoilNagercoil629004TamilnaduIndia

Human Action Recognition(HAR)and pose estimation from videos have gained signiﬁcant attention among research communities due to its applica-tion in several areas namely intelligent surveillance,human robot interaction,robot vision,*** considerable improvements have been made in recent days,design of an effective and accurate action recognition model is yet a difﬁcult process owing to the existence of different obstacles such as variations in camera angle,occlusion,background,movement speed,and so *** the literature,it is observed that hard to deal with the temporal dimension in the action recognition *** neural network(CNN)models could be used widely to solve *** this motivation,this study designs a novel key point extraction with deep convolutional neural networks based pose estimation(KPE-DCNN)model for activity *** KPE-DCNN technique initially converts the input video into a sequence of frames followed by a three stage process namely key point extraction,hyperparameter tuning,and pose *** the keypoint extraction process an OpenPose model is designed to compute the accurate key-points in the human ***,an optimal DCNN model is developed to classify the human activities label based on the extracted key *** improving the training process of the DCNN technique,RMSProp optimizer is used to optimally adjust the hyperparameters such as learning rate,batch size,and epoch *** experimental results tested using benchmark dataset like UCF sports dataset showed that KPE-DCNN technique is able to achieve good results compared with benchmark algorithms like CNN,DBN,SVM,STAL,T-CNN and so on.

关键词： Human activity recognition pose estimation key point extraction classiﬁcation deep learning RMSProp

Starving out brain tumors: a reprogrammed lysine catabolism serves as a novel target for glioblastoma treatment

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Signal Transduction and Targeted Therapy 2023年第11期8卷 5136-5138页

作者： Désirée gül oliver H.Krämer Christoph Reinhardt Molecular and Cellular Oncology Department of Otorhinolaryngology Head and Neck SurgeryUniversity Medical CenterJohannes Gutenberg-University Mainz55131MainzGermany Department of Toxicology University Medical CenterJohannes Gutenberg-University Mainz55131 MainzGermany Center for Thrombosis and Hemostasis(CTH) University Medical CenterJohannes Gutenberg-University MainzLangenbeckstrasse 155131 MainzGermany german Center for Cardiovascular Research(DZHK) Partner Site Rhine-MainUniversity Medical CenterJohannes Gutenberg-University Mainz55131 MainzGermany

In their recent study published in Nature,Yuan and colleagues enlighten the role of histone lysine crotonylation(Kcr)in brain tumor *** report a novel lysine-dependent mechanism through which glioblastoma stem cells m... 详细信息

关键词： glioblastoma interferon treatment

Design of Finite Element Tools for Coupled Surface and Volume Meshes

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Numerical Mathematics(Theory,Methods and Applications) 2008年第3期1卷 245-274页

作者： Daniel Kster oliver Kriessl Kunibert g.Siebert Numerical Analysis and Computational Mechanics group University of TwenteP O.Box 2177500 AE EnschedeThe Netherlands. Institut für Mathematik Universitt AugsburgUniversittsstraβe 14D-86159 AugsburgGermany.

Many problems with underlying variational structure involve a coupling of volume with surface effects.A straight-forward approach in a finite element discretiza- tion is to make use of the surface triangulation that is naturally induced by the volume *** an adaptive method one wants to facilitate'matching'local mesh modifications,i.e.,local refinement and/or coarsening,of volume and surface mesh with standard tools such that the surface grid is always induced by the volume grid. We describe the concepts behind this approach for bisectional refinement and describe new tools incorporated in the finite element toolbox *** also present several important applications of the mesh coupling.

关键词： Adaptive finite element methods scientific software software design.