Search results for "CONST"

Continuous Improvement on Detailed Design Phase : A Process Perspective

2020

The construction project being studied is a government investment related to the relocation of a biomedical institute delivering research-based knowledge and contingency support in the fields of animal health, fish health and food safety. The project covers a total of 63,000 square meters distributed over 10 buildings with a very high degree of complexity. The design alone has required 1 million hours, which relates to a client cost of about 100 million Euro. The purpose of this paper is to study the applied methodology for managing the detailed design to identify lessons learned from the project. The theory underlying the study is inspired by lean design management and design theory linked…

Optimizing artificial neural networks for the evaluation of asphalt pavement structural performance

2019

Artificial Neural Networks represent useful tools for several engineering issues. Although they were adopted in several pavement-engineering problems for performance evaluation, their application on pavement structural performance evaluation appears to be remarkable. It is conceivable that defining a proper Artificial Neural Network for estimating structural performance in asphalt pavements from measurements performed through quick and economic surveys produces significant savings for road agencies and improves maintenance planning. However, the architecture of such an Artificial Neural Network must be optimised, to improve the final accuracy and provide a reliable technique for enriching d…

Optimizing the Shape of Welded Constructions Made through the Technique “Temper Bead Welding”

2020

Welded constructions are subject to high stresses during operation. One solution for improving the behavior in exploitation of welded constructions in various cases is to use the welding technique “temper bead welding” (TBW). In the paper, the optimization of the geometry of the welded joints by the TBW technique was performed. Thus, corner welded joints made of S355 steel were analyzed. To make the welded joints, three layers of welding seams were deposited, and the intermediate layers were processed through cutting with various radii. To analyze the influence of the size of these rays on the behavior of welded constructions, a research program based on factorial experiences wa…

Study of phase transition in Bi3TiNbO9-BaBi2Nb2O9 ceramics

2016

Abstract The subject of the paper is lead free bismuth layer structure oxides (1-x)Bi3TiNbO9-xBaBi2Nb2O9 (x=0; 1; 2; 3 mol). The influence of Bi3TiNbO9/BaBi2Nb2O9 ratio on dielectric and structural properties was studied in a wide range of temperatures. Change in the ratio causes a decrease in the maximum value of dielectric permittivity and shifts the temperature of ε’max to low values, leading to linear decreasing of average grain size and linear increasing of ceramics density. These results indicate an augment of the packing degree and the participation of pores are significantly decreased with the increase of BaBi2Nb2O9 compound intake. Moreover, for 0.7Bi3TiNbO9-0.3BaBi2Nb2O9 ceramics …

Structural characterization and optical constants of p-toluene sulfonic acid doped polyaniline and its composites of chitosan and reduced graphene-ox…

2020

Para-Toluene sulfonic acid doped polyaniline (PANI), PANI/chitosan composites, PANI/reduced graphene-oxide composites and a ternary composite comprising of PANI, chitosan and reduced graphene-oxide have synthesised via oxidative polymerisation of aniline by Ammonium peroxydisulfate (APS). FTIR, XRD, FESEM and UV-VIS techniques were performed for the confirmation of the successful synthesis. The fundamental optical parameters such as, complex refractive index, complex dielectric constants and optical conductivity of the PANI and the composites were investigated in the UV-VIS-NIR range. The results show a clear dependence on the constituent component such as sulphur as well as the absorbance …

Propiedades psicométricas del cuestionario ActEval sobre la actividad evaluadora del profesorado universitario

2013

This article presents the results of the empirical validation of the questionnaire ActEval (Self-Report on the Evaluation Activity of university teachers). ActEval attempts to identify how important teachers consider a variety of assessment tasks, whether they feel competent, and to what extent they use them in their daily practice, in line with the new competences under the European Higher Education Area. Validation is studied using Non-Metric Multidimensional Scaling (PROXSCAL) and the reliability results show high levels of internal consistency. The data suggest that some items in the questionnaire should be reviewed in order to obtain an effective tool for the analysis of evaluation pra…

Towards a sustainable leader-follower relationship: constructive dissensus, organizational virtuousness and happiness at work (haw)

2020

This paper examines how leaders and followers can interact positively under complex and bounded conditions. For this purpose, this paper conceptualizes and measures the concept of constructive dissensus. Constructive dissensus relates to a mutual understanding leading to a situation of coregulation. In addition, the relationship between constructive dissensus and happiness at work is examined on the basis of affective events theory. Furthermore, the mediating role of organizational virtuousness is assessed. Through structural equation modeling, a multilevel analysis was performed. Data from 130 bank branches and 606 employees were gathered. The results reveal a direct effect of constructive…

Identity and relationship frames in medical leadership communication

2021

PurposeA frame is an interpretive scheme of meanings that guide participants’ interpretations of social interaction and their actions in social situations (Goffman, 1974). By identifying early-career physicians’ identity and relationship frames, this study aims to produce information about socially constructed ways to interpret leadership communication in a medical context.Design/methodology/approachThe data consist of essays written by young physicians (n= 225) during their specialization training and workplace learning period. The analysis was conducted applying constructive grounded theory.FindingsThree identity and relationship frames were identified: the expertise frame, the collegial …

Narratiivinen johtajuus : tutkielmia johtajuuden tarinankerronnan tutkimuksesta ja käytännöstä

2013

Co-costruzione dell'apprendimento: dalla pratica riflessiva all'azione. Inquiry-Based Laboratory e action learning nella formazione dei futuri docent…

2022

Il presente lavoro espone gli esiti di una ricerca sperimentale a gruppo unico, condotta con 1350 corsisti e 120 docenti di laboratorio frequentanti il V ciclo del corso di specializzazione per le attività di sostegno didattico per le scuole dell’infanzia, primaria, secondaria di primo e secondo grado dell’Ateneo di Palermo svoltosi nell’A.A. 2020/2021. La cornice teorica all’interno della quale si delinea la ricerca è quella dell’approccio Inquiry-Based Laboratory (IBL), del Reflective Learning e dell’Action Learning, fondamentale per la costruzione di una professionalità docente competente, consapevole e responsabile. Il percorso di ricerca ha applicato il modello dell’IBL alle attività l…