scholarly journals A Novel Method for Acquiring Engineering-Oriented Operational Empirical Knowledge

2016 ◽  
Vol 2016 ◽  
pp. 1-19 ◽  
Author(s):  
Lijun Liu ◽  
Zuhua Jiang ◽  
Bo Song ◽  
Hongyuan Zhu ◽  
Xinyu Li
Keyword(s):  
Rough Set ◽  
Empirical Knowledge ◽  
New Employees ◽  
Know How ◽  
Time Standards ◽  
Novel Method ◽  
Variable Precision Rough Set ◽  
Basic Motion ◽  
And Training ◽  
Predetermined Time

The operational knowledge of skilled technicians gained from years of experience is invaluable for an enterprise. Possession of such knowledge will facilitate an enterprise sharing technician’s know-how and training of new employees effectively. However, until now there is rare efficient quantitative method to obtain this kind of tacit knowledge. In this paper we propose a concept of engineering-oriented operational empirical knowledge (OEK) to describe this kind of knowledge and design a framework to acquire OEK from skilled technician’s operations. The framework integrates motion analysis, motion elicitation, and intent analysis. The modular arrangement of predetermined time standards (MODAPTS) is used to divide the technician’s operational process into basic motion elements; and the variable precision rough set (VPRS) algorithm is used to extract the technician’s OEK content, which combined with the technician’s intent elicited via interview; the completed OEK is obtained. At the end of our study, an engineering case is used to validate the feasibility of the proposed method, which shows that satisfactory results have been reached for the study.

A New Rough Set Model and its Application

2014 ◽  
Vol 599-601 ◽  
pp. 1350-1356
Author(s):  
Ming Ming Jia ◽  
Hai Qin Qin ◽  
Yong Qi Wang ◽  
Ke Jun Xu
Keyword(s):  
Rough Set ◽  
Discrete Variables ◽  
Water Pump ◽  
Variable Precision ◽  
Engineering Problems ◽  
Neighborhood Rough Set ◽  
Variable Precision Rough Set ◽  
Robust To Noise

A new neighborhood variable precision rough set modal is presented in this paper. The modal possesses the characteristics of neighborhood rough set and variable precision rough set, so it can overcome shortcomings of classic rough set which only be fit for discrete variables and sensitive to noise. Based on giving the definitions of approximate reduction, lower and upper approximate reduction, lower and upper distribution reduction, two kinds of algorithms to confirm lower and upper distribution reduction were advanced. The modal was applied to diagnose one frequency modulated water pump vibration faults. The result shows the modal is more suitable to engineering problems, because it can not only deal with continues variables but also be robust to noise.

Incremental Approach for Updating Approximations of Variable Precision Rough Set Based on Dominance Relations

2014 ◽  
Vol 631-632 ◽  
pp. 49-52
Author(s):  
Yan Li ◽  
Jia Jia Hou ◽  
Xiao Qing Liu
Keyword(s):  
Information System ◽  
Rough Set ◽  
Dominance Relation ◽  
Incremental Updating ◽  
Dominance Relations ◽  
Incremental Approach ◽  
Variable Precision ◽  
Variable Precision Rough Set ◽  
Over Time

Variable precision rough set (VPRS) based on dominance relation is an extension of traditional rough set by which can handle preference-ordered information flexibly. This paper focuses on the maintenance of approximations in dominance based VPRS when the objects in an information system vary over time. The incremental updating principles are given as inserting or deleting an object, and some experimental evaluations validates the effectiveness of the proposed method.

DETERMINING ROBUST PARAMETERS IN STABILIZING SET OF BACKSTEPPING BASED NONLINEAR CONTROLLER FOR SHIP COURSE KEEPING

2021 ◽  
Vol 158 (A3) ◽  
Author(s):  
X K Zhang ◽  
G Q Zhang
Keyword(s):  
Closed Loop ◽  
Simulation Experiment ◽  
Empirical Knowledge ◽  
Backstepping Method ◽  
Nonlinear Controller ◽  
Closed Loop System ◽  
Robust Performance ◽  
System A ◽  
Uniformly Asymptotic Stability ◽  
Novel Method

In order to solve the problem that backstepping method cannot effectively guarantee the robust performance of the closed-loop system, a novel method of determining parameter is developed in this note. Based on the ship manoeuvring empirical knowledge and the closed-loop shaping theory, the derived parameters belong to a reduced robust group in the original stabilizing set. The uniformly asymptotic stability is achieved theoretically. The training vessel “Yulong” and the tanker “Daqing232” are selected as the plants in the simulation experiment. And the simulation results are presented to demonstrate the effectiveness of the proposed algorithm.

Variable Precision Rough Set Model Based on Covering Relation and Uncertainty Measure

2013 ◽  
Vol 694-697 ◽  
pp. 2856-2859
Author(s):  
Mei Yun Wang ◽  
Chao Wang ◽  
Da Zeng Tian
Keyword(s):  
Rough Set ◽  
Uncertainty Measure ◽  
Probabilistic Measure ◽  
Covering Relation ◽  
Practical Applications ◽  
Variable Precision ◽  
Model Based ◽  
Equivalent Relation ◽  
Proposed Model ◽  
Variable Precision Rough Set

The variable precision probabilistic rough set model is based on equivalent relation and probabilistic measure. However, the requirements of equivalent relation and probabilistic measure are too strict to satisfy in some practical applications. In order to solve the above problem, a variable precision rough set model based on covering relation and uncertainty measure is proposed. Moreover, the upper and lower approximation operators of the proposed model are given, while the properties of the operators are discussed.

scholarly journals A Variable Precision Rough Set Model for Knowledge-assisted Management in Distance Education

2018 ◽  
Vol 13 (11) ◽  
pp. 41
Author(s):  
Wei Zhang
Keyword(s):  
Distance Education ◽  
Rough Set ◽  
Real Data ◽  
Knowledge Extraction ◽  
Data Conversion ◽  
Complete Reduction ◽  
Variable Precision ◽  
Noise Data ◽  
Variable Precision Rough Set ◽  
Assisted Management

To enable the teaching administrator to better obtain effective knowledge from a large amount of information to assist management and improve the efficiency and level of teaching management, a variable precision rough set model for knowledge assisted management of distance education was proposed. First, based on the theory of complete reduction and knowledge extraction, the proposed pedigree ambiguity tree was used as a strategy for obtaining complete reduction. An algorithm for obtaining a complete set of reductions was given. Then, by studying the process of knowledge extraction, a multi-knowledge extraction framework was put forward. The process of data conversion was completely realized. Finally, experimental verification was performed. The results showed that the proposed model overcame the effect of noise data in real data and improved the efficiency of the algorithm. Therefore, the model has high universality.

scholarly journals Comunicación del personal de Enfermería con el paciente con patología psiquiátrica = Nursing staff communication with psychiatric pathology patient

2018 ◽  
Vol 9 (2) ◽  
pp. 215
Author(s):  
Zaraida Aviles Saez ◽  
Rosalía Cara Rodríguez ◽  
Luisa María López Trinidad
Keyword(s):  
Mental Illness ◽  
Nursing Staff ◽  
Health Centers ◽  
Active Listening ◽  
Know How ◽  
People With Mental Illness ◽  
Fundamental Point ◽  
Nursing Professionals ◽  
The Relationship ◽  
And Training

Resumen: La comunicación con las personas diagnosticadas de patologías mentales es un punto fundamental para ayudar a conseguir su reinserción social. Enfermería es la figura que mantiene un contacto más estrecho con estos pacientes cuando se encuentran ingresados en centros sanitarios. El diálogo con estos pacientes es sumamente complejo, lo que hace necesario realizar investigaciones y formación que aborden la mejor forma de relacionarnos con ellos. Este estudio tiene por objetivo demostrar la im­portancia que tiene la comunicación con el paciente psiquiátrico respecto a la relación con el personal de Enfermería y su evolución. Los resultados muestran que los profesionales y estudiantes de Enfermería necesitan formación específica para saber cómo enfrentar un diálogo con personas con enfermedades mentales. La escucha activa, el idioma, la comunicación no verbal y la cercanía en la relación son claves para una comunicación efectiva.Palabras clave: Comunicación; enfermedad mental; Enfermería; relación.Abstract: Communication with people diagnosed with mental pathologies is a fundamental point to help achieve their social reintegration. Nursing is the figure that maintains a closer contact with these patients when they are admitted to health centers. The dialogue with these patients is extremely complex, which makes it necessary to conduct research and training that addresses the best way to relate to them. The purpose of this study is to demonstrate the importance of communication with the psychiatric patient regarding the relationship with the nursing staff and their evolution. The results show that nursing professionals and students need specific training to know how to face a dialogue with people with mental illness. Active listening, language, non-verbal communication and closeness in the relationship are key to effective communication.Keywords: Communication; mental illness; nursing; relationship.

Formazione e sostenibilitŕ: didattica partecipata e aree protette, arte dell'intreccio e ecodesign

2009 ◽  
pp. 160-175
Author(s):  
Piergiorgio Pizzuto
Keyword(s):  
Pilot Project ◽  
Point Of View ◽  
Educational Activity ◽  
Plant Fibers ◽  
Traditional Use ◽  
Plant Materials ◽  
Art And Design ◽  
Know How ◽  
Sustainable Products ◽  
And Training

- The intent of this paper is to present the results and the proceedings of an interdisciplinary research about connections between training and sustainability in the field of eco-design applied in the traditional use of plant fibers. The research has begun three years ago and has taken the form of a pilot project entitled Design Zingaro - a participating experience of planning and training. Creations of Land Art and Design with plant materials. It was realized in an inclusive process of dialogue, trough participation of many university students, artists, naturalists, forest staff and master weaver of traditional know-how of local craft. The educational activity was designed in partnership with all the stakeholders. The action of coordination has revealed vital for the involvement of both participants linked to University and external ones (artists, naturalists, forest staff and master weaver). From the methodological point of view, the process of training and planning has to be analyzed, through an ecological approach to epistemology and by a systemic view. The analysis has to be focused on relationships that enabled the conduct of the process. The main nodal relationships form the basis to build up a reticular and systemic model, able to describe the complexity of our process. There are many thematic issues covered by the research. They are all closely interlinked with each other: 1. the report of the observer with the process under study 2. arrangements and approaches of participing planning and training 3. institutional cooperation 4. the handing down of traditional know how of interlacement with plant fibers 5. fieldwork and residential workshops Abstracts 187 6. design production and artistic outcomes 7. the realization of a quality label for sustainable products 8. public events, promotion and diffusion 9. mass media and international forum.

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