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OSINT Methods in the Intelligence Cycle

OSINT Methods in the Intelligence Cycle

引用

International Conference on Computer Science, Electronics, and Industrial engineering, CSEI 2022

作者： Tanabe, Roberto de-Oliveira-Albuquerque, Robson da-Silva-Filho, Demétrio Alves-da-Silva, Daniel Costa-Gondim, João-Jose Professional Post-Graduate Program in Electrical Engineering Department of Electrical Engineering University of Brasília Brasília70910-900 Brazil Institute of Physics University of Brasilia DF Brasilia70910-900 Brazil DF Brasília70910-900 Brazil

ISBN: (纸本)9783031305917

The process for producing intelligence is traditionally represented by a series of steps forming a cycle. Collection is one of these stages and is characterized by the application of a set of disciplines to obtain information that will be analyzed for the production of an intelligence product. These disciplines are characterized according to the type of source, its methods and techniques. Open-Source Intelligence (OSINT) is the collection discipline focused on publicly available information. Open-source collection methods are usually represented by working diagrams that draw a flow according to the type of information. This paper makes a comparative study of the intelligence cycles of some relevant actors in the international OSINT scene, locates open-source collection in the intelligence cycle, and presents a workflow that combines this cycle with the techniques that form a method for OSINT. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Intelligence Methodology OSINT

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Measurement equipment for characterization of ferromagnetic materials

Measurement equipment for characterization of ferromagnetic ...

引用

2015 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2015

作者： Moraes, Tarcisio Oliveira De Freire, Raimundo Carlos Silverio Vieira, Debora Albuquerque Souza, Cleonilson Protasio De Post-Graduate Program in Electrical Engineering - PPGEE COPELE Federal University of Campina Grande UFCG Campina Grande Brazil Federal University of Campina Grande UFCG Campina Grande Brazil Post-Graduate Program in Electrical Engineering - PPGEE/UFPB Department of Electrical Engineering Federal University of Paraíba UFPB João Pessoa Brazil

ISBN: (纸本)9781479961139

Ferromagnetic materials have magnetic properties which determine its magnetic field conductivity characteristics. Such characteristics are extremely important for the proper selection and use of these materials in measurement processes, for example. Therefore, this paper presents an equipment for the characterization of ferromagnetic materials constructed in a laboratory. The experimental results of this equipment are acquired and compared with the experimental results obtained with an industrially manufactured apparatus called hysteresisgraph, designed to provide magnetic characterization of magnetic materials. The results of the comparison demonstrate that the equipment presented has low relative error and can be applied in academic projects which require magnetic characterization of ferromagnetic materials developed in the laboratory. © 2015 IEEE.

关键词： Ferromagnetic materials

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Realizing and Experimentally Testing a Reluctance-Based Magnetic Lead Screw 19

Realizing and Experimentally Testing a Reluctance-Based Magn...

引用

19th International Symposium on Electromagnetic Fields in Mechatronics, electrical and Electronic engineering, ISEF 2019

作者： Cirolini, Mateus Filho, Aly Ferreira Flores Eckert, Paulo Roberto Franchi, Lucas Dalla Corte Federal University of Rio Grande Do sul Post-Graduate Program in Electrical Engineering Porto Alegre90035-190 Brazil

ISBN: (纸本)9781728115603

This paper presents the realization and the experimental tests of a new type of reluctance-based magnetic lead screw (RBMLS) that is attractive for many potential applications. The proposed topology presents structure simplification with the implementation of discretized permanent magnets (PM) and ferromagnetic semi-rings. The proposed RBMLS has PMs only in one of its movable parts, making it suitable for long-stroke applications. The dynamic experimental results for the realized prototype are going to be compared to the 3-D finite-element method (FEM) outcomes. Experimental static results have already been obtained and show good agreement. © 2019 IEEE.

关键词： Screws

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Two-phase open-end winding induction motor drive using improved current source inverter 9

Two-phase open-end winding induction motor drive using impro...

引用

9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017

作者： De Costa, Louelson A.L.A.C. Vitorino, Montiê A. Braga-Filho, Edgar R. Corrêa, Maurício B.R. Fernandes, Darlan A. Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Brazil Campina Grande - PB Brazil Joao Pessoa - PB Brazil

ISBN: (数字)9781509029983

ISBN: (纸本)9781509029983

In this work it is presented a two-phase open-end winding induction motor (IM) driven by an improved current source inverter (CSI). The proposed inverter has independent full quadrant operation, lower DC-link current value, high magnetics power density, 25% more efficient and high AC output voltage waveform quality compared to conventional CSI solutions. A back-to-back AC-DC-AC current source converter is used to drive the two-phase open-end winding IM, where in the AC-DC portion it is used a conventional three-phase three-leg rectifier, and the proposed two-phase inverter is used in the DC-AC portion. The two-phase IM model is also presented. Two motor drive methods for the improved CSI are used: Volts/Hertz and modified q-axis indirect flux oriented control. Simulation and experimental results are provided in order to validate the theoretical approach. © 2017 IEEE.

关键词： Induction motors

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Design and implementation of synchronous rectification for an arc-welding machine

Design and implementation of synchronous rectification for a...

引用

2019 IEEE Industry Applications Society Annual Meeting, IAS 2019

作者： Michel, Flavio Marcos Coelho Cardoso, Braz Electrical Engineering Post-Graduate Program Federal University of Minas Gerais Belo Horizonte Brazil Federal University of Minas Gerais Electrical Engineering Department Belo Horizonte Brazil

ISBN: (纸本)9781538645390

In Arc-Welding Machines (AWM), the power-to-weight ration is an important project parameter. This paper brings a proposition to use synchronous rectification to lower rectification stage's power losses on semiconductors, increasing total efficiency. A commercial product was studied, tested and characterized and a synchronous rectifier was then designed to replace the passive diode rectifier. A model of the machine was created and verified by comparison with measured behaviour and then used to simulate the synchronous rectifier application. Simulation results showed a promising reduction in power losses, which could be used in reducing the machine's size or increasing its power rating. In both cases, an improvement of power-to-weight ratio is verified. Ultimately, bench tests and welding tests were made to establish a comparison point between the machine with passive rectifier and the machine with synchronous rectifier. © 2019 IEEE.

关键词： Efficiency

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Low-power energy conversion systems with two-phase PM machine and a rectifier with reduced number of controlled switches

Low-power energy conversion systems with two-phase PM machin...

引用

作者： Jacobina, Cursino B. Melo, Victor F.M.B. Da Bahia, Filipe A.C. Da Silva, Italo Roger F.M.P. Electrical Engineering Department Federal University of Campina Grande - UFCG Campina Grande Paraíba Brazil Post-Graduate Program in Electrical Engineering - PPgEE - COPELE UFCG Brazil

ISBN: (纸本)9781479956982

This paper presents two energy conversion systems with two-phase permanent magnet (PM) machine and a rectifier with reduced number of controlled switches. The topologies are conceived with the purpose of converting wind energy into electrical energy (i.e., a wind energy conversion system (WECS)) for low power applications. Compared with some three-phase generation systems with reduced number of controlled switches, the proposed topologies permit obtaining sinusoidal controlled machine currents, reducing dc-link voltage and dq currents low harmonic distortion. © 2014 IEEE.

关键词： Topology

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Multilevel Single-Phase Four-Leg AC-DC-AC Converter 12

Multilevel Single-Phase Four-Leg AC-DC-AC Converter

引用

12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020

作者： Rodrigues, Phelipe L. S. Jacobina, Cursino B. Lima, Antonio M. N. Post-Graduate Program in Electrical Engineering - PPgEE - Copele Paraíba58429-900 Brazil Department of Electrical Engineering Campina Grande Paraíba58429-900 Brazil

ISBN: (纸本)9781728158266

This paper presents a single-phase four-leg ac-dc-ac converter, with one leg shared by the grid side and the load side. The proposed topology can generate input and output voltages with seven levels, presenting reduced harmonic distortion, in addition to using reduced voltage switches. The space-vector pulsewidth modulation strategy (SV-PWM), the control technique, the system model, and a comparison with a three-leg topology will be presented. As for performance comparison parameters, harmonic distortion in currents and voltages, the average switching frequency, and semiconductor losses will be used. The topology was simulated and assembled in the laboratory to obtain experimental results. © 2020 IEEE.

关键词： Topology

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Prediction of lithium-ion battery capacity in UAVs 6

Prediction of lithium-ion battery capacity in UAVs

引用

6th International Conference on Control, Decision and Information Technologies, CoDIT 2019

作者： Costa, Erick F. Souza, Darielson A. Pinto, Vandilberto P. Araujo, Miqueias S. Peixoto, Artur M. Da Costa, Erivaldo P. Post-Graduate Program in Electrical and Computer Engineering Federal University of Ceará Brazil Federal University of Rio Grande Do Norte Brazil

ISBN: (纸本)9781728105215

This article proposes a research on degradation of lithium-ion batteries. The life of these batteries can be measured by monitoring capacity degradation. A dataset made available by NASA for the present study was used. Also, 3 methods were used to predict the failure. The methods were Non-recursive Least Squares, a Kalman Filter and an ELM neural network with a very simple architecture, but the results achieved good results and can be compared to other more robust algorithms. © 2019 IEEE.

关键词： Kalman filters

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Comparison of potential telemarketing customers predictions with a data mining approach using the MLPNN and RBFNN methods 2

Comparison of potential telemarketing customers predictions ...

引用

2nd International Conference on Information and Communications Technology, ICOIACT 2019

作者： Puteri, Annisa Nurul Dewiani Tahir, Zulkifli Post-graduate Program of Electrical Engineering Hasanuddin University Makassar Indonesia Dept. Electrical Engineering Hasanuddin University Makassar Indonesia Dept. Informatics Engineering Hasanuddin University Makassar Indonesia

ISBN: (纸本)9781728116556

Bank as a company that has many customers who conduct transactions every day, of course, has data that is increased continuously. In this paper, customer transaction data has been predicted to find potential customers in deposit offer. Data mining approach has been performed to classify potential customers for marketing through telemarketing. This data analysis can be used as a consideration in determining marketing strategy decisions for marketing managers. 15,713 data with 13 class attributes and 1 target class were obtained from UCI Machine Learning repository. The data was divided into 70% training data and 30% test data. Feedforward method of Artificial Neural Network was used to classify customer data. Multilayer Perceptron Neural Network and Radial Basis Function Neural Network were used to obtain optimal classification results. The result of this classification predicted potential customers to subscribe deposits. The result of this study indicated that the Radial Basis Function Neural Network method with 95.3% accuracy and 96.4% sensitivity was a better method compared to the Multilayer Perceptron Neural Network method with 88.0% accuracy and 99.4% sensitivity. © 2019 IEEE

关键词： Data mining

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Viability of using monofilament polyamide lines in AC live work 33

Viability of using monofilament polyamide lines in AC live w...

引用

33rd electrical Insulation Conference, EIC 2015

作者： Gomes, A.M.M.B. Ferreira, T.V. Araujo, J.F. Barbosa, L.A. Lucena, M.D. Costa, E.G. Post-Graduate Program in Electrical Engineering PPgEE-COPELE Department of Transmission Lines Recife Pernambuco Brazil Department of Electrical Engineering Federal Uruversity of Campina Grande Campina Grande Paraiba Brazil

ISBN: (纸本)9781479973521

This article presents considerations and results of practical tests on the use of insulating polyamide monofilament line as the likely replacement for the traditional non-insulating multifilament ropes, employed in online interventions. The use of insulating polyamide monofilament line decreases the necessary time in online interventions, since some safety distances can be reduced. Furthermore, its cost is less than UD 0.08 per meter. The line samples were firstly mechanically aged, providing five different degrees of degradation. electrical tests were performed in all samples, under three conditions: clean, moistened with tap water and moistened with saline water. A traditional insulating hot stick was taken as reference, due to its reliability and long term use in online interventions. The results are promising and indicate a desirable scenario, since the use of such line reduces time and effort, and also increases the process safety. © 2015 IEEE.

关键词： Insulation

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