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High Voltage 2021年第5期6卷 750-759页

作者： Ibrahim Iddrissu Qinghua Han Lujia chen louis Maksoud Yannick Kieffel Department of Electrical and Electronic Engineering The University of ManchesterManchesterUK Materials Research Department General ElectricGrid Solutions SASVilleurbanneFrance

sulphur hexafluoride(sF_(6))is a potent greenhouse gas used in high voltage *** a promising alternative to sF_(6),the c_(3)F_(7)cN/cO_(2)gas mixture and its by‐products are of great interest to ensure the safe operation of accelerators that will adopt any sF_(6)‐free *** work experimentally examines the electrical ageing characteristics of a 20%c_(3)F_(7)cN/80%cO_(2)gas mixture tested using spark gaps under a pressure of 7.2 bar(abs.).Gas samples were collected after 1000 Dc breakdowns and analysed using gas chro-matography mass spectrometry(Gc‐Ms)with an estimated toxicity value of 54,459 ppmv,which indicates the aged mixture to be non‐*** investigation was conducted on the gas‐solid interface after 500 breakdowns for both sF_(6) and the 20%c_(3)F_(7)cN/80%cO_(2)gas *** electrodes were analysed using X‐ray photoelec-tron spectroscopy(XPs)and X‐ray diffraction(XRD)*** surface analysis revealed the formation of metal fluorides on the electrode surface tested using the 20%c_(3)F_(7)cN/80%cO_(2)mixture,whereas metal fluorides and sulphides were detected for electrodes tested with sF_(6).The findings provide a reference on the toxicity and gas‐solid interaction of the electrically aged 20%c_(3)F_(7)cN/80%cO_(2)gas mixture for potential retro‐fill application in high voltage accelerators.

关键词： mixture electrode characteristics

Flux pinning effect of cubic equiaxed morphology and its Ti stabilizing in Nb_3sn superconductors

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science china(Technological sciences) 2009年第10期52卷 3071-3075页

作者： Andre sULPIcE Jean-louis sOUBEYROUX christophe VERWAERDE Gia Ky HOANG NEEL/cNRs-UJF BP 166 38042 Grenoble ALsTOM 3 bis avenue des 3 Chenes 90018 Belfort

Two sets of internal-sn Nb3sn superconducting strands were fabricated through RRP method, one with 2 wt% of Ti alloyed in sn core and the other just pure sn. Four reaction temperatures of 650℃, 675℃, 700℃ and 725℃ and 128 h duration were applied for A15 phase formation heat treatment after cu-sn alloying procedure of 210℃/50 h + 340℃/25 h. For the heat-treated coil samples, transport non-cu Jc was examined through standard 4-probe technique and phase microstructure was observed by means of Field Emission scanning Electronic Microscope (FEsEM). The obtained results demonstrate that the transport critical current density Jc of Nb3sn superconductors is more importantly determined by the cubic equiaxed crystalline morphology than by grain size. Ti addition in sn stabilizes the cubic equiaxed phase at lower temperature so that heat reaction temperature is effectively reduced, the flux pinning performance is largely reinforced and the transport critical current density Jc is substantially promoted.

关键词： internal-sn Nb3sn strands cubic equiaxed morphology flux pinning Ti stabilizing transport non-cu Jc

Ulcerative colitis and bullous pemphigoid:Direct association or a medication side effect:A case report

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World Journal of clinical cases 2025年第9期13卷 47-52页

作者： Gaelle-christie Haddad Anthony El Dada sergio sbeih Tony Kazzi Karam Karam louis A chaptini Department of Internal Medicine University of BalamandBeirut 100Lebanon Department of Medicine GastroenterologyUniversity of BalamandBalamand 100Lebanon Department of Medicine Digestive DiseasesYale School of MedicineNew HavenCT 06510United States

BAcKGROUND Bullous pemphigoid(BP)is an autoimmune blistering skin *** is associated with other autoimmune disorders and the use of certain *** describe a case of BP in a patient with ulcerative colitis(Uc)treated with *** sUMMARY A 38-year-old male patient with Uc and a history of multiple flares was maintained on mesalamine with good clinical *** year after starting mesalamine,he sought medical care following the onset of a severe itchy rash of several weeks’duration with a recent appearance of skin bullae.A biopsy of the skin revealed subepidermal blistering dermatitis with focal eosinophilic *** immunofluorescence studies revealed linear IgG and c3 immune reactant deposits at the dermoepidermal junction,consistent with the diagnosis of *** therapy alleviated his ***,tapering prednisone led to re-eruption of the *** BP should be considered when patients with Uc develop skin *** BP is not one of the extraintestinal manifestations of Uc,there may be an association between these two *** treatment with mesalamine or other therapeutic agents plays a role in the development of BP remains unclear.

关键词： Bullous pemphigoid Ulcerative colitis Autoimmune disorders skin manifestations in inflammatory bowel diseases Mesalamine case report

Microarchitecture of titanium cylinders obtained by additive manufacturing does not influence osseointegration in the sheep

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Regenerative Biomaterials 2021年第4期8卷 11-20页

作者： louis Rony Eric Aguado Bruno Verlee Florence Pascaretti-Grizon Daniel chappard GEROM-Groupe Etudes Remodelage Osseux et bioMate´riaux LabCom NextBoneUniv-AngersIRIS-IBS Institut de Biologie en Sante´49933 AngersFrance ONIRIs Ecole Ve´te´rinaire de Nantes44307Nantes Cedex 3France sIRRIs Lie`ge science Park Rue du bois St Jean 12Seraing 4102Belgium scIAM Service Commun d’Imagerie et Analyses MicroscopiquesIRIS-IBS Institut de Biologie en Sante´Univ-AngersAngers Cedex 49933France

Large bone defects are a challenge for orthopedic ***(bone grafts)and synthetic biomaterials have been proposed but several problems arise such as biomechanical resistance or viral/bacterial *** use of metallic foams could be a solution to improve mechanical resistance and promote osseointegration of large porous metal *** cylinders have been prepared by additive manufacturing(3D printing/rapid prototyping)with a geometric or trabecular *** were implanted in the femoral condyles of aged ewes;the animals were left in stabling for 90 and 270 days.A double calcein labeling was done before sacrifice;bones were analyzed by *** bone volume,bone/titanium interface nor mineralization rate were influenced by the cylinder’s microarchitecture;the morphometric parameters did not significantly increase over *** anchoring occurred on the margins of the cylinders and some trabeculae extended in the core of the cylinders but the amount of bone inside the cylinders remained *** rigid titanium cylinders preserved bone cells from strains in the core of the *** manufacturing is an interesting tool to prepare 3D metallic scaffolds,but microarchitecture does not seem as crucial as expected and anchoring seems limited to the first millimeters of the graft.

关键词： titanium trabecular scaffold osseointegration geometric architecture histomorphometry

GLOBAL WELL-POsEDNEss AND BLOW-UP FOR THE HARTREE EQUATION

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Acta Mathematica scientia 2017年第4期37卷 941-948页

作者：杨凌燕李晓光吴永洪 louis cAccETTA sichuan Normal University Chengdu610066China Wuhan Institute of Physics and Machematics chinese Academy of science Wuhan 430071China Department of Mathematics and statistics Curtin University of TechnologyPerthWA 6845Australia

For 2 〈 y 〈 min{4, n}, we consider the focusing Hartree equation iut ＋ Au ＋（｜x｜^-γ ＊｜u｜2）u = O, x∈ R^n Let M[u] and E[u] denote the mass and energy, respectively, of a solution u, and Q be the ground state of - △ ＋ Q = （｜x｜^-γ ＊｜Q｜^2）Q. Guo and Wang [Z. Angew. Math. Phy.,2014] established a dichotomy for scattering versus blow-up for the cauchy problem of （0,1） if M[u]^l-scE[u]^sc 〈 M[Q] ^1-sc E[Q] ^（sc= r-2/2）. In this paper, we consider the complementary case M[u]^1-scE[u]^sc 〉_ M[Q]^1-sc and obtain a criteria on blow-up and global existence for the Hartree equation （0.1）.

关键词： Hartree equation Threshold criteria blow-up solution

Lightweight Multi-scale convolutional Neural Network for Rice Leaf Disease Recognition

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computers, Materials & continua 2023年第1期74卷 983-994页

作者： chang Zhang Ruiwen Ni Ye Mu Yu sun Thobela louis Tyasi college of Information Technology Jilin Agricultural UniversityChangchun130118China Jilin Province Agricultural Internet of Things Technology collaborative Innovation center Changchun130118China Jilin Province Intelligent Environmental Engineering Research center Changchun130118China Jilin Province Information Technology and Intelligent Agriculture Engineering Research center Changchun130118China Department of Agricultural Economics and Animal Production University of LimpopoPrivate Bag X 1106Sovenga0727PolokwaneSouth Africa

In the field of agricultural information,the identification and prediction of rice leaf disease have always been the focus of research,and deep learning(DL)technology is currently a hot research topic in the field of pattern *** research and development of high-efficiency,highquality and low-cost automatic identification methods for rice diseases that can replace humans is an important means of dealing with the current situation from a technical *** paper mainly focuses on the problem of huge parameters of the convolutional Neural Network(cNN)model and proposes a recognitionmodel that combines amulti-scale convolution module with a neural network model based on Visual Geometry Group(VGG).The accuracy and loss of the training set and the test set are used to evaluate the performance of the *** test accuracy of this model is 97.1%that has increased 5.87%over ***,the memory requirement is 26.1M,only 1.6%of the *** results show that this model performs better in terms of accuracy,recognition speed and memory size.

关键词： Rice leaf diseases deep learning lightweight convolution neural networks VGG

Facially amphiphilic polyionene biocidal polymers derived from lithocholic acid

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Bioactive Materials 2018年第2期3卷 186-193页

作者： Mitra s.Ganewatta Md Anisur Rahman louis Mercado Tinom shokfai Alan W.Decho Theresa M.Reineke chuanbing tang Department of chemistry and Biochemistry University of South CarolinaColumbiaSC 29208USA Department of Environmental Health sciences Arnold School of Public HealthUniversity of South CarolinaColumbiaSC 29208USA Department of chemistry University of Minnesota-Twin Cities207 Pleasant Street SEMinneapolisMN 55455USA

Bacterial infections have become a global issue that requires urgent attention,particularly regarding to emergence of multidrug resistant *** developed quaternary amine-containing antimicrobial poly(bile acid)s that contain a hydrophobic core of lithocholic acid in the ***,by choosing appropriate monomers,these cationic polymers can form core-shell *** polymers exhibited biocidal activity against both Gram-positive and Gram-negative bacterial *** is demonstrated that the micelles can deliver hydrophobic antibiotics that functionally have dual antimicrobial *** assays against HeLa cells showed dosage-dependent toxicity for polymers with longer linkers.

关键词： Antimicrobial polymers Bile acid Quaternary ammonium Lithocholic acid Polyionene Facial amphiphilicity

RFID Adaption in Healthcare Organizations:An Integrative Framework

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computers, Materials & continua 2022年第1期70卷 1335-1348页

作者： Ahed Abugabah louis sanzogni Luke Houghton Ahmad Ali AlZubi Alaa Abuqabbeh college of Technical Innovation Zayed UniversityAbu DhabiUAE Nathan campus Griffith UniversityAustralia Department of computer science King Saud UniversityRiyadhSaudi Arabia Golden Gate University San FranciscoCaliforniaUSA

Radio frequency identification(RFID),also known as electronic label technology,is a non-contact automated identification technology that recognizes the target object and extracts relevant data and critical characteristics using radio frequency *** equipment information management is an important part of the construction of a modern hospital,as it is linked to the degree of diagnosis and care,as well as the hospital’s benefits and *** aim of this study is to create an integrated view of a theoretical framework to identify factors that influence RFID adoption in healthcare,as well as to conduct an empirical review of the impact of organizational,environmental,and individual factors on RFID adoption in the healthcare *** contrast to previous research,the current study focuses on individual factors as well as organizational and technological factors in order to better understand the phenomenon of RFID adoption in healthcare,which is characterized as a dynamic and challenging work *** research fills a gap in the current literature by describing how user factors can influence RFID adoption in healthcare and how such factors can lead to a deeper understanding of the advantages,uses,and impacts of RFID in *** proposed study has superior performance and effective results.

关键词： RFID healthcare information technology user factors

Nearest Neighbor sampling of Point sets Using Rays

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communications on Applied Mathematics and computation 2024年第2期6卷 1131-1174页

作者： Liangchen Liu louis Ly colin B.Macdonald Richard Tsai Department of Mathematics The University of Texas at Austin2515 SpeedwayAustinTX 78712USA Oden Institute for computational Engineering and sciences The University of Texas at Austin201 E24th StAustinTX 78712USA Department of Mathematics University of British Columbia1984 Mathematics RdVancouverBCV6T1Z2Canada

We propose a new framework for the sampling,compression,and analysis of distributions of point sets and other geometric objects embedded in Euclidean *** approach involves constructing a tensor called the Raysense sketch,which captures nearest neighbors from the underlying geometry of points along a set of *** explore various operations that can be performed on the Raysense sketch,leading to different properties and potential *** information about the data set can be extracted from the sketch,independent of the ray *** integrals on point sets can be efficiently computed using the *** also present several examples illustrating applications of the proposed strategy in practical scenarios.

关键词： Point clouds sampling classification Registration Deep learning Voronoi cell analysis

Dendritic Morphology Affects the Velocity and Amplitude of Back-propagating Action Potentials

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Neuroscience Bulletin 2022年第11期38卷 1330-1346页

作者： Wu Tian Luxin Peng Mengdi Zhao louis Tao Peng Zou Yan Zhang state Key Laboratory of Membrane Biology College of Life SciencesPeking UniversityBeijing 100871China college of chemistry and Molecular Engineering Synthetic and Functional Biomolecules CenterBeijing National Laboratory for Molecular SciencesKey Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of EducationPeking UniversityBeijing 100871China center for Quantitative Biology Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China PKU-IDG/McGovern Institute for Brain Research Peking UniversityBeijing 100871China center for Bioinformatics National Laboratory of Protein Engineering and Plant Genetic EngineeringSchool of Life SciencesPeking UniversityBeijing 100871China Peking-Tsinghua center for Life sciences Peking UniversityBeijing 100871China chinese Institute for Brain Research(cIBR) Beijing 102206China Beijing Academy of Artifcial Intelligence Beijing 100084China

The back-propagating action potential(bpAP)is crucial for neuronal signal integration and synaptic plasticity in dendritic *** properties(velocity and amplitude)can be affected by dendritic *** to limited spatial resolution,it has been difficult to explore the specific propagation process of bpAPs along dendrites and examine the influence of dendritic morphology,such as the dendrite diameter and branching pattern,using patch-clamp *** taking advantage of Optopatch,an all-optical electrophysiological method,we made detailed recordings of the real-time propagation of bpAPs in dendritic *** found that the velocity of bpAPs was not uniform in a single dendrite,and the bpAP velocity differed among distinct dendrites of the same *** velocity of a bpAP was positively correlated with the diameter of the dendrite on which it *** addition,when bpAPs passed through a dendritic branch point,their velocity decreased *** to velocity,the amplitude of bpAPs was also positively correlated with dendritic diameter,and the attenuation patterns of bpAPs differed among different *** results from neuron models with different dendritic morphology corresponded well with the experimental *** findings indicate that the dendritic diameter and branching pattern significantly influence the properties of *** diversity among the bpAPs recorded in different neurons was mainly due to differences in dendritic *** results may inspire the construction of neuronal models to predict the propagation of bpAPs in dendrites with enormous variation in morphology,to further illuminate the role of bpAPs in neuronal communication.

关键词： Dendrite Action potential Backpropagation synaptic integration