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检索条件"任意字段=Conference on Process Control and Diagnostics"

共 1531 条记录，以下是361-370 订阅

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Detecting deviations in business processes using process mining 14

Detecting deviations in business processes using process min...

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14th International conference on Computer Engineering and Systems, ICCES 2019

作者： Ellatif, Mahmoud Abd Shaaban, Essam Mohamed Amin, Mohamed Ahmed College of Business University of Jeddah Saudi Arabia Faculty of Computers and Information Beni-Suef University Information Systems Department Egypt Faculty of Computers and Information Helwan University Information Systems Department Egypt

ISBN: (纸本)9781728152608

Monitoring business processes is one of process mining duties, this study aims to detect and diagnose deviations in business processes starting from process discovery to detection and diagnosis as well. The solution is applied to an anonymous Radiology lab in Egypt that focuses on the service process. The data set is about 184622 events that represent 21478 cases extracted from the database according to process mining required attributes. After detecting deviations by applying conformance checking;the results show the deviated cases because of the skipped, inserted, or switched activities. Besides;in some cases, there are overlapped processes that lead to a lot of diagnostics are applied to know deviations causes that influence the process which gives more insights for both all moves on the log and all moves on model for all activities. This finally gives recommendations to control these deviations and to enhance the service process by separating some activities into another process, some cases when doing more one service, or the interaction between instruments and the service process which finally enhanced the service process in the Radiology lab. © 2019 IEEE.

关键词： Radiology

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The Research into Fault-Tolerant Design Usign Pass Transistor Logic

The Research into Fault-Tolerant Design Usign Pass Transisto...

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IEEE conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus)

作者： Kamenskih, Anton N. Perm Natl Res Polytech Univ Dept Automat & Remote Control Perm Russia

ISBN: (纸本)9781728103396

this research is focused on implementation of pass transistor logic (PTL) methods in the synthesis process of both the diagnostic equipment and the fault-tolerant circuits. The pass transistor logic is usually used for implementing XOR and MUX functions. For example, LUT in FPGA or XOR/XNOR gates in arithmetic logic units can be designed with PTL. We think that PTL method can be used to design novel logic gates with a self-diagnostic function and possibly self-recovery. The brief overview of pass transistor logics will be given in the first section of the paper. The reliability analysis and the examples of logic recovery using PTL are presented in this paper. The PTL designs are represented in digital devices but not for high reliable applications. That is why this subject should be further researched.

关键词： digital circuits fault-tolerance pass transistor logic reliability diagnostics

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diagnostics, optimization and mathematical models of coke-sinter-hot metal production process

Diagnostics, optimization and mathematical models of coke-si...

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AISTech 2019 Iron and Steel Technology conference and Exposition

作者： Gordon, Y. Izumskiy, N. Matveienko, G. Chaika, O. Lebid, V. Vyshinskya, O. Hatch Ltd 2800 Speakman Drive MississaugaONL5K 2R7 Canada 2/35 Ushinskogo Lane Dnipro49000 Ukraine ISI of Ukraine 1 Academician Sq. Starodubova Dnipro49107 Ukraine 28 Mira Str. Ekaterinburg620002 Russia

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RESEARCH OF VIBROACOUSTIC diagnostics OF FUEL SYSTEM OF ENGINES OF COMBINE HARVESTERS 18

RESEARCH OF VIBROACOUSTIC DIAGNOSTICS OF FUEL SYSTEM OF ENGI...

引用

18th International Scientific conference on Engineering for Rural Development (ERD)

作者： Rogovskii, Ivan Titova, Liudmyla Novitskii, Andriy Rebenko, Victor Natl Univ Life & Environm Sci Ukraine Kiev Ukraine

To determine the diagnostic parameters of the fuel system of engines of grain harvesters, technological and structural parameters of the technical condition were considered. The authors investigate the structural schemes of indicator connection of the purpose (performance) of the fuel system of engines and parameters of the technical state of its structural elements. For example, we consider the modal structure diagram, which characterizes the fuel system of grain harvester engines and parameters of the technical state of their structural elements. For example, we consider the modal structure diagram, which describes the fuel system of the engines. At the highest level there are parameters that describe the process of fuel supply and directly determine the characteristics of injection, or the law of fuel supply. On the lower levels there are parameters that characterize the technical state of the most important elements of the fuel equipment. They are used for elemental diagnostics. Experimental studies of vibration characteristics of nozzles of diesel engines have shown that the energy vibration nozzles manifested most actively at the frequency from 5 kHz to 10 kHz. Application of Hilbert's conversion to vibration analysis has made it possible to use the ability to control the identity of nozzles and identify defects, such as breakage of nozzles and spray gun hangs. When the injection pressure changes from 27.0 MPa to 8.0 MPa, signal duration, which is measured between the front and rear fronts with maximum amplitudes, decreases 2 times. Application of technological cards together with diagnostic means will allow in 1,5 times to cut down the technical equipment due to technical problems at expense of preventing bursts and reducing the fuel consumption by 5-10 %. The range of sensors for diagnostics of diesels, the basic electric circuit of the tool for measuring the angle are developed for fuel supply, the requirements for the computerized system for bench diagnost

关键词： vibroacoustic diagnostic fuel system combine

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The Comparison of the Current and Industry 4.0 Automation and Protection Standards

The Comparison of the Current and Industry 4.0 Automation an...

引用

International Workshop on Research and Education in Mechatronics (REM)

作者： Łukasz Sołtysek Jerzy Szczepanik Faculty of Electrical and Computer Engineering Cracow University of Technology Kraków Poland

ISBN: (数字)9781728162249

ISBN: (纸本)9781728162256

The article contains the analysis of the advantages or new “Industry 4.0” control and power supply protection system over classic de-centralized systems. Particular attention was paid to the development of communication systems and the integration of control and protection systems. The development of modern methods of communication and diagnostics of industrial facilities include unambiguous identification and location of failures in real time, collection of historical data and current operational states. This was not possible when the transmission of data took place over a wire-based communication. The reliability of the proposed solutions 4.0 include not only redundance (as it was in classic systems), but also the ability of the modification of system structure was also analyzed. Not only by reduction but also by changing the system structure, what makes the design, commissioning and development of intelligent factories and products much easier and flexible.

关键词： control systems Reliability Industries process control Automation Standards Production facilities

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Automation of diagnostics of Defects in the Outer Ring of a Rolling Bearing

Automation of Diagnostics of Defects in the Outer Ring of a ...

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International Russian Automation conference (RusAutoCon)

作者： Viktor P. Lapshin Ilia A. Turkin Yaroslav D. Koba Dept. Industrial process automation Don State Technical University Rostov-on-Don Russian Federation

ISBN: (数字)9781728161303

ISBN: (纸本)9781728161310

Modern bearings used in spindle assemblies of metal cutting machines for low vibration conditions on such machines shall provide low vibration machining modes. However, there are often situations where such bearings, even new ones, have some defects. One of the most common defects to date is a defect in the internal or external ring of the separator. The spindle itself, which may lose alignment, may be defective from the point of ensuring the absence of vibrations, in which case beats at the speed of the spindle will be observed in the machine. Proposed method of automatic control of bearings of spindle assembly makes it possible to estimate degree of defect of bearing separator outer ring by vibration dynamics of spindle rotation in metal cutting machine, as well as to estimate presence or absence of beats caused by misalignment of spindle. The automated control method itself is based on the use of signal filtering, in the range of interest to us in terms of finding a specific fault.

关键词： Vibrations Particle separators Automation Metals Rotors Frequency measurement Tools

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Development Application-Specific Integrated Circuit (ASIC) for Intelligent Vibration Sensor

Development Application-Specific Integrated Circuit (ASIC) f...

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IEEE NW Russia Young Researchers in Electrical and Electronic Engineering conference (EIConRusNW)

作者： Sergey Lebedev Alexey Timofeev Sergey Sinutin Anatoly Grigoriev National Research University of Electronic Technology Moscow Zelenograd Russia Institute of Radioengineering Systems and Control Southern Federal University Taganrog Russia LLC SensFab Dortmund Germany

ISBN: (数字)9781728157610

ISBN: (纸本)9781728157627

The work gives an overview of the promising methods of vibration diagnostics of the equipment and the transport systems. The main challenges of the monitoring systems implementation in the production process are presented. The concept of the built-in vibration sensors design is defined, requirements to functional units are given. The structure of the processing integrated circuit for vibration and temperature sensors is presented, together with its components and the results of analog blocks *** given work was made on support of the Ministry of Education and Science of Russian Federation on the Agreement about the providing of the subsidies No14.581.21.0030 from the 23 of October 2017, the unique identification of the work (project) is RFMEFI58117X0030.

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Unleashing the power of smart particles for completion diagnostics: Advancing the production flow profiling technology with sub-atomic fingerprints and big data analytics

Unleashing the power of smart particles for completion diagn...

引用

SPE Annual Technical conference and Exhibition 2019, ATCE 2019

作者： Shokanov, Talgat Khudorozhkov, Pavel Shokanov, Adilkhan K. QuantumPro Inc. United States Abai University Kazakhstan

ISBN: (纸本)9781613996638

Current multistage hydraulic fracturing operations in shale are costly, environmentally challenging and inefficient. Multistage hydraulic fracturing operations already represent close to 60% of the total drilling and completion cost for each shale well. The industry studies reported that based on data evaluated in multiple shale basins in North America alone that up to 50% of the clusters and stages do not produce in geometric completion design. Shale E&P operators need more accurate, cost-efficient, timely and actionable data on the performance of individual fracturing stages and intra-well communication to enable improved decision-making and optimization of multistage hydraulic fracturing and completion strategy, as well as overall field development. This paper will describe a revolutionary smart tracer portfolio testing and design for multistage hydraulic fracturing stimulation. The technology enables the next generation of smart tracers coupled with advanced sub-atomic measurements that significantly reduce the completion cost and double the efficiency of the hydraulic fracturing treatments. An automated process with stringent quality control assured precise tracer addition onsite and provided accurate and actionable completion diagnostics results at fraction of the cost for high-cost measurements (e.g., PLT, DTS & DAS). The integration of smart tracer portfolio with intelligent-completion diagnostics for E&P customer enabled by performance-flow-profile data. This data used to optimize completion strategies, achieve optimal production per foot, and reduce completion cost. Follow-up big-data analytics and 3D fracture-modeling delivered accurate, calibrated, actionable, and cost-effective completion-diagnostics results. Since tracer data are captured over several months, E&P operators are captured access to continuous flow profiling data to optimize well performance routinely when new completion-diagnostics results are received. This will enable E&P operators to s

关键词： Hydraulic fracturing

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Research of Road Pavement Survey process Using Georadiolocation 28

Research of Road Pavement Survey Process Using Georadiolocat...

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28th Annual Russian-Polish-Slovak seminar on Theoretical Foundation of Civil Engineering

作者： Dormidontova, Tatiana Filatova, Anastasia Samara State Technical University Architecture and Civil Engineering Academy Molodogvardeyskaya street Samara Russia

The authors of this paper carried out a survey of road pavement and analyzed the need for such survey. The research was conducted using an operating facility as an example. In this paper, the decisions are grounded, the survey stages are described. Mobile methods of non-destructive control for road structures diagnostics are of particular importance at the moment. As a part of this research, the tasks related to determining the thickness of structural layers, the uniformity of materials, and the detection of voids under the auto-road surfacing were solved. The results of diagnostics and quality control of road-building works, as well as georadiolocation (GPR) technologies, are considered in detail. The results of tests of different GPR models and the economic efficiency of their use in road industry are described. The test results are illustrated with radarograms. The result of the GPR study of an auto-road section is presented. The results of the work showed that GPR research methods as a part of the survey allow reasonably planning and carrying out measures to eliminate and prevent various types of subsidence and road surfacing destruction, as well as to assess the nature and extent of the negative processes development. With the timely elimination of these problems, major damage and subsequent costly repairs can be avoided. Having compared the most significant factors, the authors make the conclusion that the method under research has got advantages, which are high efficiency and high capacity. © Published under licence by IOP Publishing Ltd.

关键词： Quality control

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Automated coding of medical diagnostics from free-text: The role of parameters optimization and imbalanced classes 13th

Automated coding of medical diagnostics from free-text: The ...

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13th International conference on Data Integration in the Life Sciences, DILS 2018

作者： Virginio, Luiz dos Reis, Julio Cesar University of Campinas Campinas São Paulo Brazil

ISBN: (纸本)9783030060152

The extraction of codes from Electronic Health Records (EHR) data is an important task because extracted codes can be used for different purposes such as billing and reimbursement, quality control, epidemiological studies, and cohort identification for clinical trials. The codes are based on standardized vocabularies. diagnostics, for example, are frequently coded using the International Classification of Diseases (ICD), which is a taxonomy of diagnosis codes organized in a hierarchical structure. Extracting codes from free-text medical notes in EHR such as the discharge summary requires the review of patient data searching for information that can be coded in a standardized manner. The manual human coding assignment is a complex and time-consuming process. The use of machine learning and natural language processing approaches have been receiving an increasing attention to automate the process of ICD coding. In this article, we investigate the use of Support Vector Machines (SVM) and the binary relevance method for multi-label classification in the task of automatic ICD coding from free-text discharge summaries. In particular, we explored the role of SVM parameters optimization and class weighting for addressing imbalanced class. Experiments conducted with the Medical Information Mart for Intensive Care III (MIMIC III) database reached 49.86% of f1-macro for the 100 most frequent diagnostics. Our findings indicated that optimization of SVM parameters and the use of class weighting can improve the effectiveness of the classifier. © Springer Nature Switzerland AG 2019.

关键词： Support vector machines

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