scholarly journals RESEARCH EFFECT OF THE RESERVE TIME RELIABILITY HIGHT SPEED TRAIN SCHEDULE

Author(s):  
Halyna Prokhorchenko ◽  
Anastsia Scherbatska ◽  
Maksim Тkachuk
Keyword(s):  
2017 ◽  
Vol 13 (4) ◽  
pp. 137
Author(s):  
Lilia Rosa Ávila-Meléndez ◽  
Jorge Abelardo Cortés-Montalvo

In the daily and hectic development of our activities we rarely reserve time to think, rethink, and reflect on the results obtained from our actions, and make crucial decisions about how we can modify the way to change our own actions and with that, transform the context where our professional activity is exercised. A methodological model called the systematization of educational experiences is precisely what gives us this space for collaborative dialogue, and self-reflection and with others. The systematization of experiences is described as a research process where the experiences of the actors are recovered through reflection, dialogue and the reconstruction of events with the purpose of collecting awareness and improving their practices. Present work shows an experience with university professors in a strengths-based training course of critical use of the media. Some of the elements that were used for the construction of the learning and recovery experience were: the logbook, the story, the elaboration of didactic materials, videos and photographs. Collaborative work in triad groups and focus group sessions were some of the techniques used for obtaining and documenting relevant data and information. Following an axis of the systematization of the experience, some of the findings were that the professors recognized the need to be open to change, empathy and collaborative work, to promote the development of critical thinking and the application of knowledge. Participating professors also distinguished innovation and strategy design, such as the development of didactic sequences according to the Model for the Development of Academic Competences (M-DECA), for use in planning of their subjects according to the competence approach and the application of the dimensions of media competition.


2017 ◽  
Vol 10 (3) ◽  
pp. 431
Author(s):  
Xuejuan Liu ◽  
Binrong Wang

Purpose: We deal with the problem of the joint determination of optimal economic production quantity (EPQ) and optimal preventive maintenance (PM) for a system that can produce multiple products alternately. The objective is to find the optimal number of production cycles and the PM policy simultaneously by minimizing the cost model.Design/methodology/approach: Considering the products go through the system in a sequence and a complete run of all products forms a production cycle. In each cycle, beyond production time we also consider some reserve time for maintenance and setup, shortage and overproduction may occur. We study the integrated problem based on two PM policies, and explain the situation with the other PM policies. The delay – time concept is used to model PM decisions.Findings: Using the integrated EPQ and PM model, we can calculate the optimal production planning and PM schedule simultaneously, especially we consider multiple products in each production cycle, which is more practical and economic than previous works.Originality/value: In modern companies, the production planning and maintenance schedule share the same system, and traditional research about two activities is separated, that always generate conflicts, such as inadequate or excessive maintenance, and shortages, etc., so we develop the integrated EPQ and PM model to avoid these undesirable effects.


1991 ◽  
Vol 57 (5) ◽  
pp. 3429-3432 ◽  
Author(s):  
Yu. E. Obzherin ◽  
A. V. Skatkov
Keyword(s):  

Author(s):  
A.M. Pesco ◽  
R.V. Biagetti ◽  
R.S. Chidamber ◽  
C.R. Venkatram

2004 ◽  
Vol 19 (6) ◽  
pp. 1515-1522 ◽  
Author(s):  
P.E. Pascoe ◽  
A.H. Anbuky

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