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Reliability of Echocardiographic Pulmonary Vascular Resistance to Screen for the New Definition of Precapillary Pulmonary Hypertension in Uncorrected Secundum Atrial Septal Defect

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Congenital Heart Disease 2024年第3期19卷 315-324页

作者： Risalina Myrtha Hasanah Mumpuni real kusumanjaya marsam Dyah Wulan Anggrahini Anggoro Budi Hartopo Lucia Kris Dinarti Department of Cardiology and Vascular Medicine Faculty of MedicineUniversitas Sebelas MaretSurakarta57126Indonesia Department of Cardiology and Vascular Medicine Universitas Sebelas Maret HospitalSukoharjo57161Indonesia Department of Cardiology and Vascular Medicine Faculty of MedicinePublic Healthand NursingUniversitas Gadjah MadaYogyakarta55281Indonesia Department of Cardiology and Vascular Medicine Dr.Sardjito HospitalYogyakarta55284Indonesia

Background and Objective:The most feared complication of uncorrected secundum Atrial Septal Defect(ASD)is pulmonary arterial hypertension(PAH).Pulmonary vascular resistance(PVR)is crucial in detecting precapil-lary pulmonary hypertension(PH)to guide the need for PAH-specific *** is a change in the cut-off value of PVR according to the recently updated PH *** echocardiographic PVR(PVRecho)correlates to PVR by right heart catheterization(RHC)(PVRcath)according to the new guidelines has not been *** aim of this study is to determine the reliability of PVRecho in detecting PAH in Uncorrected Ostium Secundum ASD based on the current updated guideline and to help screen the high PVR ***:429 ostium secun-dum ASD in the COngenital HeARt Disease in Adult and Pulmonary Hypertension(COHARD-PH)registry was divided into three groups according to the *** was calculated using Abbas’Formula and compared the its gold standard,the *** correlation between the two methods was *** Bland-Altman plot was used to analyze the agreement between the two *** operating characteristics(ROC)analysis was used to determine the PVRecho cut-off value for high ***:The majority of the population(63.5%)had high *** gender dominated the study population(84%).PVR_(echo) was significantly correlated with PVRcath(r=0.6225,p1.62 WU showed good dis-criminatory power in determining high PVR.

关键词： Pulmonary vascular resistance atrial septal defect echocardiography

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Indoor localization for pedestrians with real-time capability using multi-sensor smartphones

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Geo-Spatial Information Science 2019年第2期22卷 73-88,I0001页

作者： Catia real Ehrlich Jörg Blankenbach Geodetic Institute and Chair for Computing in Civil Engineering&Geo Information Systems RWTH Aachen UniversityAachenGermany

The localization of persons or objects usually refers to a position determined in a spatial reference ***,this is usually accomplished with Global Navigation Satellite Systems(GNSS).However,the automatic positioning of people in GNSS-free environments,especially inside of buildings(indoors)poses a huge ***,satellite signals are attenuated,shielded or reflected by building components(*** or ceilings).For selected applications,the automatic indoor positioning is possible based on different technologies(***,RFID,or UWB).However,a standard solution is still not *** indoor positioning systems are only suitable for specific applications or are deployed under certain conditions,*** infrastructures or sensor ***,as popular cost-effective multi-sensor systems,is a promising indoor localization platform for the mass-market and is increasingly coming into ***’s devices are equipped with a variety of sensors that can be used for indoor *** this contribution,an approach to smartphone-based pedestrian indoor localization is *** novelty of this approach refers to a holistic,real-time pedestrian localization inside of buildings based on multisensor smartphones and easy-to-install local positioning *** this purpose,the barometric altitude is estimated in order to derive the floor on which the user is *** 2D position is determined subsequently using the principle of pedestrian dead reckoning based on user's movements extracted from the smartphone *** order to minimize the strong error accumulation in the localization caused by various sensor errors,additional information is integrated into the position *** building model is used to identify permissible(***,passageways)and impermissible(***)building areas for the *** technologies contributing to higher precision and robustness are also *** the fusion of diffe

关键词： Indoor positioning MEMS recursive Bayesian estimation particle filter sensor fusion Bluetooth beacons WLAN fingerprinting magnetic anomalies

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Changes in potential mammal diversity in national parks and their implications for conservation

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Current Zoology 2018年第6期64卷 671-679页

作者： Alba ESTRADA A.Marcia BARBOSA Raimundo real Biogeography Diversity and Conservation LabDepartment of Animal BiologyUniversidad de MalagaSpain Research Unit of Biodiversity (UMIB UO-CSIC-PA)Oviedo Univ.-Campus MieresSpain CIBIO/InBIO-University of Evora Portugal

Observed species richness (OSR)is a widely used and well-studied biodiversity ***, non-observed species in favorable ecosystems are also *** metrics that include observed and potential species were recently defined:potential biodiversity (hereafter potential species richness--PSR)and geometric mean of favorabilities (GMF).We used these metrics to evaluate the national park network of mainland Spain at two time periods (2002 and 2015),using terrestrial mammals on a UTM 100-km^2 *** and GMF are based on the favorability function, a species distribution model that assesses how favorable an area is for the presence of a species, over and above its prevalence in the study *** each park and for the whole network,we calculated the mean and sum of OSR,PSR,and GMF in each time period,as well as changes between *** and PSR were higher inside than outside the park network in both time periods. Thus,although the network covers a very small proportion of the country,it performs well for the representation of mammal species and their favorable ***,mean PSR was lower in 2015 than in 2002 inside the national park network,whereas the opposite was the case outside the *** Parks generally not only concentrated highly favorable areas for mammals, but they also showed less favorable areas in 2015 compared to 2002,although the reduction was moderate to *** is a result to consider for future analyses because if the tendency increases, it may have consequences for the conservation of mammals and for the adequacy of the national park network.

关键词： conservation planning dark diversity environmental favorability potential biodiversity protected areas

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Analysis of three-dimensional vortexes below the free surface in a continuous casting mold

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International Journal of Minerals,Metallurgy and Materials 2011年第4期18卷 397-406页

作者： Cesar A.real-Ramirez Jesus I.Gonzalez-Trejo Universidad Autonoma Metropolitana-Azcapotzalco.San Pablo 180 02200Mexico CityMexico

To study fluctuations of the free surface of liquid steel in the mold,two different models with the same casting conditions but different thicknesses were employed to analyze the hydrodynamic behavior at the top of the *** first model was a standard thickness slab,and the second had a thickness three times *** is found with the second model that above the plane formed by the steel jets,it is possible to observe four three-dimensional vortexes that interact with the submerged entry nozzle（SEN）and mold *** using a biphasic model to simulate the interface between the liquid and air inside the mold,the flow asymmetry and the fluctuations of the free surface can be clearly observed.

关键词： continuous casting molds flow patterns three dimensional vortes mathematical models computer simulation

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Complementarity of electric vehicles and pumped-hydro as energy storage in small isolated energy systems:case of La Palma,Canary Islands

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Journal of Modern Power Systems and Clean Energy 2016年第4期4卷 604-614页

作者： Alfredo RAMIREZ-DIAZ Francisco J.RAMOS-real Gustavo A.MARRERO Departamento de Economı´a Contabilidad y FinanzasFacultad de Economı´aEmpresa y TurismoUniversidad de La Laguna38071 La LagunaSpain Instituto Universitario de Ciencias Polı´ticas y Sociales Universidad de La Laguna38071 La LagunaSpain Instituto Universitario de Desarrollo Regional Universidad de La Laguna38071 La LagunaSpain

Isolated energy systems in archipelagos are characterized for having a great dependence on fossil sources due to isolation and territorial *** island of La Palma is situated on the northwest of the Canary Islands,and its electric system is very *** policies planned by local authorities are aimed to increase the share of renewable energies and the reduction of fossil ***,intermittence and the concentration of unmanageable renewable energies in few locations may hinder the operation of the *** order to solve these problems,energy storage plays an essential *** aim of this paper is to analyse the effects of the introduction of two possible alternatives as a way of energy storage:pumped hydro storage and electric *** this,we use a simulation model adapted to the features of La Palma,considering different *** show that,in the most favourable scenario,the installation of an additional 25 MW from renewables(more than double the current power),supported by 20 MW of pumped hydro storage and a fleet of 3361 electric vehicles,would allow the current share of renewables to increase from11%(in 2015)to 49%.Furthermore,this would mean a 26%reduction in CO2 emissions,10%in costs of generated k Wh and 19%in energy dependence.

关键词： Energy storage Electric vehicles Vehicle-to-grid Grid-for-vehicles Pumped-hydro energy storage Isolated systems

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Observation of dipolar transport in one-dimensional photonic lattices

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Science Bulletin 2017年第5期62卷 339-344页

作者： Camilo Cantillano Luis Morales-Inostroza Bastián real Santiago Rojas-Rojas Aldo Delgado Alexander Szameit Rodrigo A.Vicencio Departamento de Física MSI-Nucleus on Advanced Opticsand Center for Optics and Photonics(CEFOP)Facultad de CienciasUniversidad de ChileSantiagoChile Center for Optics and Photonics and MSI-Nucleus on Advanced Optics Universidad de ConcepciónCasilla 160-C ConcepcionChile Institute for Physics University of RostockD-18059 RostockGermany

We experimentally study the transport properties of dipolar and fundamental modes on one dimensional(1D) coupled waveguide arrays. By carefully modulating a wide optical beam, we are able to effectively excite dipolar or fundamental modes to study discrete diffraction(single-site excitation) and gaussian beam propagation(multi-site excitation plus a phase gradient). We observe that dipolar modes experience a larger spreading area due to an effective larger coupling constant, which is found to be more than two times larger than the one for fundamental modes. Additionally, we study the effect of non-diagonal disorder and find that while fundamental modes are already trapped on a weakly disorder array, dipoles are still able to propagate across the system.

关键词： Photonic lattices Waveguide arrays Wave propagation Integrated optics

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Derailment risk and dynamics of railway vehicles in curved tracks： Analysis of the effect of failed fasteners

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Journal of Modern Transportation 2016年第1期24卷 38-47页

作者： Silvia Morales-Ivorra Julia Irene real Cesar Hernandez Laura Montalbain University Institute for Multidisciplinary Mathematics Polytechnic University of Valencia 46022 Valencia Spain

The effect of the fastener＇s failure in a railway track on the dynamic forces produced in the wheel-rail contact is studied using the simulation software VAMPIRE to assess the derailment risk of two different vehicles in two curves with distinct characteristics. First, a 3D-FEM model of a real track is constructed, paying special attention to fasteners, and calibrated with displacement data obtained experimentally during a train passage. This numerical model is subsequently used to determine the track vertical and lateral stiffness. This study evidences that although the track can practically lose its lateral stiffness as a consequence of the failure of 7 consecutive fasteners, the vehicle stability would not be necessarily compromised in the flawed zone. Moreover, the results reveal that the uncompensated acceleration and the distance along which the fasteners are failed play an important role in the dynamic behavior of the vehicle-track system, influencing strongly the risk of derailment.

关键词： Railway dynamics Fasteners Derailment Curved track

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A Computer-Aided FPS-Oriented Approach for Construction Briefing

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Tsinghua Science and Technology 2008年第S1期13卷 292-297页

作者： Xiaochun Luo, Qiping Shen Department of Building and real Estate, the Hong Kong Polytechnic University, Hong Kong, China Department of Building and real Estate the Hong Kong Polytechnic University Hong Kong China

Function performance specification (FPS) is one of the value management (VM) techniques developed for the explicit statement of optimum product definition. This technique is widely used in software engineering and manufacturing industry, and proved to be successful to perform product defining tasks. This paper describes an FPS-oriented approach for construction briefing, which is critical to the successful delivery of construction projects. Three techniques, i.e., function analysis system technique, shared space, and computer-aided toolkit, are incorporated into the proposed approach. A computer-aided toolkit is developed to facilitate the implementation of FPS in the briefing processes. This approach can facilitate systematic, efficient identification, clarification, and representation of client requirements in trail running. The limitations of the approach and future research work are also discussed at the end of the paper.

关键词： briefing value management (VM) functional performance specification (FPS) function analysis system technique shared space computer-aided

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Sudden cardiac death and valvular pathology

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Forensic Sciences Research 2019年第3期4卷 280-286页

作者： Rosa H.A.M.Henriques de Gouveia Francisco M.A.Corte real Goncalves Forensic Clinical and Pathology Service Central Branch of the National Institute of Legal Medicine and Forensic SciencesCoimbraPortugal

Sudden death due to valvular heart disease is reported to range from 1% to 5% in native valves and around 0.2%-0.9%/year in *** nature of the diseases is varied,from heritable,congenital to *** may affect both genders in multiple age *** authors show and comment examples of the major nosologic aetiologies underlying unexpected exitus letalis of valvular nature.

关键词： Forensic sciences forensic pathology sudden death cardiac valvular pathology

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Development of a vehicle-track interaction model to predict the vibratory benefits of rail grinding in the time domain

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Journal of Modern Transportation 2015年第3期23卷 189-201页

作者： Julia Irene real Clara Zamorano José Luis Velarte Antonio Enrique Blanco University Institute for Multidisciplinary Mathematics Polytechnic University of Valencia Foundation for the Research and Engineering in Railways

Imperfections in the wheel-rail contact are one of the main sources of generation of railway vibrations. Consequently, it is essential to take expensive corrective maintenance measures, the results of which may be unknown. In order to assess the effectiveness of these measures, this paper develops a vehicle-track interaction model in the time domain of a curved track with presence of rail corrugation on the inner rail. To characterize the behavior of the track, a numerical finite element model is developed using ANSYS software, while the behavior of the vehicle is characterized by a unidirectional model of two masses developed with VAMPIRE PRO software. The overloads obtained with the dynamic model are applied to the numerical model and then, the vibrational response of the track is obtained. Results are validated with real data and used to assess the effectiveness of rail grinding in the reduction of wheel-rail forces and the vibration generation phenomenon.

关键词： Corrugation · Dynamic overloads · Finiteelement method · Vibrations

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