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Deep Feature Learning for Intrinsic Signature Based Camera Discrimination

Big Data Mining and Analytics 2022年第3期5卷 206-227页

作者： Chaity Banerjee Tharun Kumar Doppalapudi eduardo Pasiliao Jr. Tathagata Mukherjee Department of Idustrial&Systems Engineering University of Central FloridaOrlandoFL 32816USA Department of Computer Science University of Alabama in HuntsvilleHuntsvilleAL 35806USA Air Force Research Labs United States Air ForceEglin Air Force BaseShalimarFL 32579USA

In this paper we consider the problem of“end-to-end”digital camera identification by considering sequence of images obtained from the *** problem of digital camera identification is harder than the problem of identifying its analog counterpart since the process of analog to digital conversion smooths out the intrinsic noise in the analog *** it is known that identifying a digital camera is possible by analyzing the camera’s intrinsic sensor artifacts that are introduced into the images/videos during the process of photo/video *** is known that such methods are computationally intensive requiring expensive pre-processing *** this paper we propose an end-to-end deep feature learning framework for identifying cameras using images obtained from *** conduct experiments using three custom datasets:the first containing two cameras in an indoor environment where each camera may observe different scenes having no overlapping features,the second containing images from four cameras in an outdoor setting but where each camera observes scenes having overlapping features and the third containing images from two cameras observing the same checkerboard pattern in an indoor *** results show that it is possible to capture the intrinsic hardware signature of the cameras using deep feature representations in an end-to-end *** deep feature maps can in turn be used to disambiguate the cameras from each *** system is end-to-end,requires no complicated pre-processing steps and the trained model is computationally efficient during testing,paving a way to have near instantaneous decisions for the problem of digital camera identification in production *** we present comparisons against the current state-of-the-art in digital camera identification which clearly establishes the superiority of the end-to-end solution.

关键词： deep learning visual signatures camera identification convolutional neural networks deep feature learning

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Time-frequency multiresolution of fault-generated transient signals in transmission lines using a morphological filter

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Protection and Control of Modern Power Systems 2023年第2期8卷 85-98页

作者： Juan Carlos Quispe John Morales eduardo Orduna Carlo Liebermann Michael Bruhns Peter Schegner Universidad Nacional de San Juan-CONICET San JuanArgentina Universidad Tecnológica del Perú LimaPerú Technical University of Dresden DresdenGermany

The ongoing transformation of electrical power systems highlights the weaknesses of the protection schemes of traditional devices because they are designed and configured according to traditional characteristics of the ***,this work proposes a new methodology to study the fault-generated high frequency transient signals in transmission lines through multiresolution *** high frequency components are determined by a new digital filtering technique based on mathematical morphology theory and a spectral energy ***,wide spectra of signals in the time–frequency domain are *** performance of this method is verified on an electrical power system modeled in ATP-Draw,where simulation and test signals are developed for different locations,fault resistances,inception angles,high frequency noises,sampling frequencies,types of faults,and shapes of the structuring *** results show the characteristics of the fault such as the traveling wave frequency,location,and starting time.

关键词： Digital filter High frequency Mathematical morphology Time–frequency Traveling waves

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Intracranial pressure monitoring in the perioperative period of patients with acute liver failure undergoing orthotopic liver transplantation

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World Journal of Transplantation 2023年第4期13卷 122-128页

作者： Luis eduardo Mendoza Vasquez Sonja Payne Raffael Zamper Department of Anesthesia and Perioperative Medicine London Health Science CentreLondon N6A 5A5OntarioCanada

Acute liver failure(ALF)may result in severe neurological complications caused by cerebral edema and elevated intracranial pressure(ICP).Multiple pathogenic mechanisms explain the elevated ICP,and newer hypotheses have been *** invasive ICP monitoring(ICPM)may have a role in ALF management,these patients are typically coagulopathic and at risk for intracranial *** is the subject of much debate,and significant heterogeneity exists in clinical practice regarding its *** ICPM techniques and coagulopathy reversal strategies may be associated with a lower risk of hemor-rhage;however,most of the evidence is limited by its retrospective nature and relatively small sample size.

关键词： Acute liver failure Liver transplant Hepatic encephalopathy Intracranial hypertension Brain edema

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Vascular complications of pancreatitis

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World Journal of Clinical Cases 2022年第22期10卷 7665-7673页

作者： M Ammar Kalas Monica Leon Luis Omar Chavez eduardo Canalizo Salim Surani Department of Medicine Texas Tech University Health CenterEl PasoTX 79905United States Department of General Surgery Centro Medico ABCCiudad de Mexico 01120Mexico Department of Medicine Texas A&M UniversityBryanTX 77807United States

More than 200000 hospital admissions happen per year for acute pancreatitis and more than 50000 for chronic pancreatitis in the United States of *** pancreatitis accounts for 20%-30%of the ***-quarter of the patients with pancreatitis develop vascular complications,which carries a high *** mini-review will address these complications that can help primary care physicians and hospitalists in managing their patients effectively.

关键词： Acute pancreatitis Vascular complications Gastrointestinal bleeding Pseudoaneurysm Hemosuccus pancreaticus Pancreas

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The management of water heritage in Portuguese cities:Recent regeneration projects in Évora,Lisbon,Braga and Guimarães

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Frontiers of Architectural Research 2022年第1期11卷 73-88页

作者： Celia López-Bravo JoséPeral López eduardo Mosquera Adell Department of Architectural History Theory and CompositionUniversity of SevilleSevilleSpain

Given the cultural and environmental potential presented by historical water infrastructures in urban contexts,this article states the evidence of a not much documented urban phenomenon in Portugal,the refurbishment of water heritage protected areas motivated by European-based regeneration *** employing a case-study design,four good practices-placed inÉvora,Lisbon,Braga and Guimarães-are chosen to enlighten this growing and aware *** assets located there-theÁgua de Prata Aqueduct,theÁguas Livres Aqueduct,the Sete Fontes water-supply system and the Zona de Couros industrial area,respectively-are geographical,historical and culturally characterised,while the projects that concern them are documented by visiting the areas and analysing the available ***,open-data platforms and heritage protection decrees are processed to graphically code the topography,hydrology,urban land use,infrastructures,landmarks and protected areas,employing QGIS free software for Geographic Information *** a result,the four practices are documented,discussed and compared.A table assesses and summarises their pre-existing and currently added values and a series of diagrams illustrates the landscape changes *** graphics validate the practices and update the status of the assets,enhancing the rediscovery of the existing landscapes and showing the main challenges and future opportunities faced by these areas.

关键词： Heritage characterization Infrastructures Landscape Obsolescence Urban planning Waterworks

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Multiorgan retrieval and preservation of the thoracic and abdominal organs in Maastricht III donors

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World Journal of Transplantation 2022年第5期12卷 83-87页

作者： Daniel Casanova Federico Castillo eduardo Miñambres Department of Surgery University Hospital Marqués de Valdecilla University CantabriaSantander 39008CantabriaSpain Intensive Care Unit Transplant OfficeUniversity Hospital Marques de Valdecilla University of Cantabria Medical SchoolSantander 39008CantabriaSpain

This editorial describes the indications and technical aspects of the simultaneous retrieval of thoracic and abdominal organs in Maastricht III donors as well as the preservation of such organs until their implantation.

关键词： Multiorgan retrieval Abdominal organs Thoracic organs Maastricht III Preservación Transplantation

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Carbon nanodots:A metal-free,easy-to-synthesize,and benign emitter for light-emitting electrochemical cells

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Nano Research 2022年第6期15卷 5610-5618页

作者： Yongfeng Liu Shi Tang Xiuyu Wu Nicolas Boulanger eduardo Gracia-Espino Thomas Wågberg Ludvig Edman Jia Wang Department of Physics UmeåUniversitySE-90187 UmeåSweden LunaLEC AB Linnaeus väg 24SE-90187 UmeåSweden College of Physical Science and Technology Yangzhou UniversityYangzhou 225009China

Light-emitting electrochemical cells(LECs)can be fabricated with cost-efficient printing and coating methods,but a current drawback is that the LEC emitter is commonly either a rare-metal complex or an expensive-to-synthesize conjugated ***,we address this issue through the pioneering employment of metal-free and facile-to-synthesize carbon nanodots(CNDs)as the emitter in functional LEC ***-shaped(average diameter=4.4 nm)and hydrophilic CNDs,which exhibit narrow cyan photoluminescence(peak=485 nm,full width at half maximum=30 nm)with a high quantum yield of 77%in dilute ethanol solution,were synthesized with a catalyst-free,one-step solvothermal process using low-cost and benign phloroglucinol as the sole starting *** propensity of the planar CNDs to form emission-quenching aggregates in the solid state was inhibited by the inclusion of a compatible 2,7-bis(diphenylphosphoryl)-9,9’-spirobifluorene host compound,and we demonstrate that such pristine host-guest CND-LECs turn on to a peak luminance of 118 cd·m^(−2)within 5 s during constant current-density driving at 77 mA·cm^(−2).

关键词： carbon nanodot light-emitting electrochemical cell phloroglucinol sustainable synthesis solution-based fabrication

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Grain-size and compositional variability of Yarlung Tsangpo sand(Xigaze transect,south Tibet):Implications for sediment mixing by fluvial and aeolian processes

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Journal of Palaeogeography 2023年第2期12卷 195-210页

作者： Wen Lai Wen-Dong Liang Xiu-Mian Hu eduardo Garzanti Hua-Yu Lu Xiao-Long Dong Frontiers Science Center for Critical Earth Material Cycling School of Geography and Ocean ScienceNanjing UniversityNanjing 210023Jiangsu ProvinceChina State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Institute of Sedimentary GeologyChengdu University of TechnologyChengdu 610059Sichuan ProvinceChina State Key Laboratory of Mineral Deposits Research School of Earth Sciences and EngineeringNanjing UniversityNanjing 210023Jiangsu ProvinceChina Department of Earth and Environmental Sciences Universita di Milano-BicoccaMilano 20126Italy

Studying the grain-size dependent compositional variability in modern river sediments provides a key to decipher the information stored in the sedimentary archive and reconstruct the evolution of the Earth’s surface in the past. Bedload sand along the Xigaze cross section of the Yarlung Tsangpo(upper Brahmaputra River) ranges in mean grain size from 0.72 Φ to 3.21 Φ, is moderately to poorly sorted and slightly platykurtic to moderately leptokurtic with sub-angular to sub-spherical grains. Litho-feldspatho-quartzose to feldspatholitho-quartzose sand(Q 43%-65%;F 13%-44%;L 11%-28%) contains 3.4%-14.4% heavy minerals including amphibole(64%-89%), epidote(4%-11%), chloritoid(0-10%), and clinopyroxene(2%-6%). The marked textural and compositional variability observed across the Xigaze transect of the Yarlung Tsangpo mainstem is controlled by both fluvial and aeolian processes, including repeated reworking by westerly and glacial winds,as well as by local contributions from northern and southern tributaries draining the Lhasa Block and the Himalayan Belt, respectively. The modern sedimentary case here will shed new light on interpreting paleogeography and provenance.

关键词： Modern fluvial sediments Sand petrography Heavy minerals Fluvial/aeolian interactions Endmember grain-size modeling Lhasa Block Himalayan Belt

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A new software for automated counting of glistenings in intraocular lenses in vivo

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International Journal of Ophthalmology(English edition) 2023年第8期16卷 1237-1242页

作者： Nick Stanojcic Christopher C.Hull eduardo Mangieri Nathan Little David O’Brart Department of Ophthalmology Guy’s and St Thomas’NHS Foundation TrustLondon SE17EHUK Centre for Applied Vision Research School of Health SciencesUniversity of LondonLondon EC1V 0HBUK Sparca Ltd CroydonSurrey CR01QQUK King’s College London WC2R 2LSUK

AIM:To assess the performance of a bespoke software for automated counting of intraocular lens(IOL)glistenings in slit-lamp ***:IOL glistenings from slit-lamp-derived digital images were counted manually and automatically by the bespoke *** images of one randomly selected eye from each of 34 participants were used as a training set to determine the threshold setting that gave the best agreement between manual and automatic grading.A second set of 63 images,selected using randomised stratified sampling from 290 images,were used for software *** images were obtained using a previously described ***-derived automated glistenings counts were compared to manual counts produced by three ***:A threshold value of 140 was determined that minimised the total deviation in the number of glistenings for the 34 images in the training *** this threshold value,only slight agreement was found between automated software counts and manual expert counts for the validating set of 63 images(κ=0.104,95%CI,0.040-0.168).Ten images(15.9%)had glistenings counts that agreed between the software and manual *** were 49 images(77.8%)where the software overestimated the number of ***:The low levels of agreement show between an initial release of software used to automatically count glistenings in in vivo slit-lamp images and manual counting indicates that this is a non-trivial *** improvement involving a dialogue between software developers and experienced ophthalmologists is required to optimise *** results suggest that validation of software is necessary for studies involving semi-automatic evaluation of glistenings.

关键词： new software automated counting glistenings intraocular lenses slit-lamp images

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A rare cause of acute abdomen after a Good Friday

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World Journal of Clinical Cases 2022年第26期10卷 9539-9541页

作者： Leticia Pante Luísa Gailhard Brito Miguel Franciscatto eduardo Brambilla Jonathan Soldera School of Medicine Universidade de Caxias so SulCaxias do Sul 95070-560Brazil Proctology Hospital Geral de Caxias do SulCaxias do Sul 95070-560Brazil Clinical Gastroenterology Universidade de Caxias do SulCaxias do Sul 95070-560RSBrazil

Small bowel perforation caused by an ingested fish bone is rare but can involve the appendix or Meckel’s *** report the case of a 25-year-old man who presented to the emergency department with acute abdomen caused by... 详细信息

关键词： Fish bone Foreign body Small bowel perforation Meckel diverticulum

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