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Tracking Power System State Evolution with Maximum-correntropy-based Extended Kalman Filter

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Journal of Modern Power Systems and Clean Energy 2020年第4期8卷 616-626页

作者： Julio A.D.Massignan João B.A.London jr. Vladimiro Miranda IEEE Department of Electrical and Computing Engineering School of Engineering of São CarlosUniversity of São PauloSão CarlosBrazil Faculty of Engineering University of Porto and INESC TECPortoPortugal

This paper develops a novel approach to track power system state evolution based on the maximum correntropy criterion,due to its robustness against non-Gaussian *** includes the temporal aspects on the estimation process within a maximum-correntropy-based extended Kalman filter(MCEKF),which is able to deal with both nonlinear supervisory control and data acquisition(SCADA)and phasor measurement unit(PMU)measurement *** representing the behavior of the state variables with a nonparametric model within the kernel density estimation,it is possible to include abrupt state transitions as part of the process noise with non-Gaussian ***,a novel strategy to update the size of Parzen windows in the kernel estimation is proposed to suppress the effects of suspect *** properly adjusting the kernel bandwidth,the proposed MCEKF keeps its accuracy during sudden load changes and contingencies,or in the presence of bad *** with IEEE test systems and the Brazilian interconnected system are carried *** results show that the method deals with non-Gaussian noises in both the process and measurement,and provides accurate estimates of the system state under normal and abnormal conditions.

关键词： Tracking state estimation Kalman filter maximum correntropy power system Parzen window

Comments on the Article “Improved Hemodynamics with the Use of Prophylactic Infusion of Epinephrine and or Norepinephrine during Transcatheter Aortic Valve Replacement (TAVR)”

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Open Journal of Anesthesiology 2015年第10期5卷 217-218页

作者： carlos Galhardo jr. carlos Darcy Alves Bersot Departament of Anesthesia at Unimed-Rio Hospital Rio de Janeiro Brazil Departament of Anesthesia at Lagoa Federal Hospital-SUS Rio de Janeiro Brazil

Transcatheter aortic valve replacement (TAVR) is a new therapeutic option to treat patients with symptomatic severe aortic stenosis, and a prohibitive mortality risk for conventional surgical AVR2. A thorough understanding of the procedural steps involved in TAVR is imperative for all components of the heart time. Balloon aortic valvuloplasty under rapid ventricular pacing is one of the main procedural steps, and is usually performed before valve insertion to enable passage of the prosthesis through the stenotic native aortic valve. Hemodynamic collapse necessitating prompt intervention may occur at different stages during the procedure.

关键词： Cardiovascular Anesthesia Surgery Hemodynamics Control

DYNAMICS OF EMERGENT AND RE-EMERGENT DISEASES INA GLOBAL VILLAGE

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DYNAMICS OF EMERGENT AND RE-EMERGENT DISEASES INA GLOBAL VIL...

Fuzzy Online Auto-Tuning for an Industrial PID Controller

第三世界生态高峰会

作者： carlos Castillo-Chavez Joaquin Bustoz jr. Arizona State University Arizona State University

The control and prevention of a growing number of diseases will only be effective if local and national public health policies adopt a global *** role of mass transportation,immigration,tourism, demographic growth,tourism and bioterrorism are but some of the engines behind disease dynamics and disease *** using recent epidemic outbreaks will be used to highlight not only the importance of these epidemic drivers but also to advance the importance of health policy perspectives without borders.

关键词： INA DYNAMICS OF EMERGENT AND RE-EMERGENT DISEASES INA GLOBAL VILLAGE

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Journal of Energy and Power Engineering 2014年第7期8卷 1272-1278页

作者： Alain Segundo Potts Basilio Thome de Freitas jr. Jose carlos Amaro Center of Engineering Modeling and Applied Social Sciences Federal University of ABC Santo Andre 09210-580 Brazil Sollwert lndustria e Comercio LTDA Sao Paulo 0438-230 Brazil

This paper presents a fuzzy tuning system for real-time industrial PID （proportional-integral-derivative） controllers. The algorithm set the proportional gain, integral time and derivative time of a classical PID structure according to the set point, error and error derivative of the process, respectively. The tuning of the PID controller is based on a fuzzy inference machine. The set of rules of the fuzzy inference machine was obtained by experts engineering. The system is tested in an austempering process but can be applied in any industrial plant. Besides, an analysis between the response of the process with a PID controller and the system of fuzzy auto-tuning for P1D proposed was made.

关键词： PID controller fuzzy auto-tuning industrial controller.

Rationale for reconsidering current regulations restricting use of hybrids in orange juice

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Horticulture Research 2020年第1期7卷 2375-2381页

作者： Ed Stover Frederick G.Gmitter jr.Jude Grosser Elizabeth Baldwin Guohong Albert Wu Jinhe Bai Yu Wang Peter Chaires Juan carlos Motamayor USDA/ARS US Horticultural Research Lab.2001 S Rock Rd.Ft.PierceFL 34945USA Citrus Research and Education Center Univ.Florida700 Experiment Station Rd.Lake AlfredFL 33850USA US Department of Energy Joint Genome InstituteLawrence Berkeley National Laboratory1 Cyclotron RoadBerkeleyCA 94720USA New Varieties Development&Management Corp. PO Box 941058MaitlandFL 32794USA The Coca-Cola Company 2651 Orange Ave.ApopkaFL 32703USA

Huanglongbing(HLB)is a disease that has devastated the Florida citrus industry,threatens the entire *** industry,and globally is rapidly ***’s citrus production is 90%sweet orange,which is quite sensitive to *** heavy reliance on sweet orange for Florida citrus production makes the industry especially vulnerable to diseases that are damaging to this type of ***,90%of Florida oranges are used in producing orange juice that is defined by a federal regulation known as the“orange juice standard”,specifying that at least 90%of“orange juice”must be derived from Citrus *** analyses definitively reveal that sweet orange is not a true species,but just one of many introgression hybrids of *** and ***,with phenotypic diversity resulting from accumulated mutations in this single hybrid,the“sweet orange”.No other fruit industry is limited by law to such a narrow genetic ***,there are new citrus hybrids displaying reduced sensitivity to HLB,and in some cases they produce juice,alone or in blends,that consumers would recognize as“orange juice”.Reconsidering current regulations on orange juice standards may permit use of such hybrids in“orange juice”,providing greater latitude for commercialization of these hybrids,leading to higher-quality orange juice and a more sustainable Florida orange juice industry.

关键词： orange Rational stated

A sensitive electrochemical detection of metronidazole in synthetic serum and urine samples using low-cost screen-printed electrodes modified with reduced graphene oxide and C60

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Journal of Pharmaceutical Analysis 2021年第5期11卷 646-652页

作者： Elsa Maria Materon Ademar Wong Tayane Aguiar Freitas Ronaldo Censi Faria Osvaldo N.Oliveira jr. Department of Chemistry Federal University of Sao Carlos13560-970Sao CarlosBrazil Sao carlos Institute of Physics University of Sao Paulo13560-970Sao CarlosBrazil

Monitoring the concentration of antibiotics in body fluids is essential to optimizing the therapy and minimizing the risk of bacteria resistance,which can be made with electrochemical sensors tailored with appropriate *** this paper,we report on sensors made with screen-printed electrodes(SPE)coated with fullerene(C60),reduced graphene oxide(rGO)and Nafion(NF)(C60-rGO-NF/SPE)to determine the antibiotic metronidazole(MTZ).Under optimized conditions,the C60-rGO-NF/SPE sensor exhibited a linear response in square wave voltammetry for MTZ concentrations from 2.5×10^(-7) to 34×10^(-6) mol/L,with a detection limit of 2.1×10^(-7) mol/*** sensor was also capable of detecting MTZ in serum and urine,with recovery between 94%and 100%,which are similar to those of the standard chromatographic method(HPLC-UV).Because the C60-rGO-NF/SPE sensor is amenable to mass production and allows for MTZ determination with simple principles of detection,it fulfills the requirements of therapeutic drug monitoring programs.

关键词： Metronidazole Fullerene Reduced graphene oxide Screen-printed electrodes Antibiotic

Advances and New Applications Using the Acousto-Optic Effect in Optical Fibers

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Photonic Sensors 2013年第1期3卷 1-25页

作者： Alexandre A. P. POHL Roberson A. OLIVEIRA Ricardo E. DA SILVA carlos A. F. MARQUES Paulo de Tarso NEVES jr. Kevin COOK John CANNING Rogério N. NOGUEIRA3 Advanced Telecommunications Laboratory Federal University of Technology - Paraná Curitiba Brazil Volvo GTT Advanced Technology & Research Curitiba Brazil Instituto de Telecomunicagōes P6lo de Aveiro 3810-193 Aveiro Portugal Interdisciplinary Photonics Labs School of Chemistry University of Sydney New South Wales 2006 Australia

This work presents a short review of the current research on the acousto-optic mechanism applied to optical fibers. The role of the piezoelectric element and the acousto-optic modulator in the excitation of flexural and longitudinal acoustic modes in the frequency range up to 1.2 MHz is highlighted. A combination of the finite elements and the transfer matrix methods is used to simulate the interaction of the waves with Bragg and long period gratings. Results show a very good agreement with experimental data. Recent applications such as the writing of gratings under the acoustic excitation and a novel viscometer sensor based on the acousto-optic mechanism are discussed.

关键词： Acousto-optics fiber gratings optical fibers optical sensors

Stability Study of a Mixed Islanded Power Network

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Journal of Energy and Power Engineering 2014年第8期8卷 1449-1459页

作者： Antonio carlos Padoan jr. Christophe Nicolet Basile Kawkabani Jean-Jacques Simond Alexander Schwery Francois Avellan ALSTOM (Brazil) Ltd. Sao Paulo-S BR-05035-000 Brasil Power Vision Engineering Chemin des Champs-Courbes Ecublens CH-1024 Switzerland Electrical Machinery Group EPFL (Ecole Polytechnique Federale de Lausanne) Lausanne CH-1015 Switzerland Hydro Generator Technology Center ALSTOM (Switzerland) Ltd. Birr CH-5242 Switzerland Laboratory for Hydraulic Machines EPFL (Ecole Polytechnique Federale de Lausanne) Lausanne CH-1015 Switzerland

This paper presents the modelling, simulation and analysis of the dynamic behaviour of a mixed power network of 2.78 GW including hydro, thermal and wind power plants. The modelling of each power plant is described. The set of parameters of the turbine speed governor of the hydroelectric power plant is determined with a specific identification procedure to achieve stable operation for different cases such as interconnected, isolated or islanded operation. The analysis of the stability of the entire mixed islanded power plant is investigated through time domain simulations for different sets of controllers parameters and for different disturbances （load rejection and turbulent wind speed profile）.

关键词： Wind park hydroelectric power station power network stability identification

Esophagogastric anastomosis with invagination into stomach:New technique to reduce fistula formation

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World Journal of Gastroenterology 2010年第45期16卷 5722-5726页

作者： Alexandre Cruz Henriques carlos Alberto Godinho Roberto Saad jr.Daniel Reis Waisberg Aline Biral Zanon Manlio Basilio Speranzini Jaques Waisberg Department of Surgery University HospitalABC Medical SchoolSanto AndréSo Paulo09060-870Brazil

AIM: To present a new technique of cervical esophagogastric anastomosis to reduce the frequency of fistula formation. METHODS: A group of 31 patients with thoracic and abdominal esophageal cancer underwent cervical esophagogastric anastomosis with invagination of the proximal esophageal stump into the stomach tube. In the region elected for anastomosis, a transverse myotomy of the esophagus was carried out around the entire circumference of the esophagus. Afterwards, a 4-cm long segment of esophagus was invaginated into the stomach and anastomosed to the anterior and the posterior walls. RESULTS: Postoperative minor complications occurred in 22 (70.9%) patients. Four (12.9%) patients had serious complications that led to death. The discharge of saliva was at a lower region, while attempting to leave the anastomosis site out of the alimentary transit. Three (9.7%) patients had fistula at the esophagogastric anastomosis, with minimal leakage of air or saliva and with mild clinical repercussions. No patients had esophago- gastric fistula with intense saliva leakage from either the cervical incision or the thoracic drain. Fibrotic stenosis of anastomoses occurred in seven (22.6%) patients. All these patients obtained relief from their dysphagia with endoscopic dilatation of the ***: Cervical esophagogastric anastomosis with invagination of the proximal esophageal stump into the stomach tube presented a low rate of esophagogastric fistula with mild clinical repercussions.

关键词： Esophageal cancer Esophagectomy Constriction Pathologic Fistula Gastroplasty