Search results for "Building"

Educational dialogue in the classroom : scaffolding, knowledge building and associations with academic performance

2018

The present thesis focuses on patterns of educational dialogue, their quality with respect to forms of teacher scaffolding and shared knowledge building, and the association between the quality of educational dialogue and students’ academic performance. The specific questions of interest are as follows: (1) to examine how teachers scaffold students in learning situations through dialogic teaching, (2) to identify patterns of shared knowledge building in educational dialogues, and (3) to investigate how the quality of educational dialogue is associated with academic performance. The data were drawn from the audio- and video-recorded lessons of the First Steps longitudinal study, which were c…

Ponadkonfesyjny model działalności śląskich organmistrzów w XIX i w początkach XX wieku na przykładzie działalności Moritza Roberta Müllera oraz Carl…

2019

Śląsk od czasów reformacji w XVI w. był i pozostał terenem współistnienia wielu wyznań chrześcijańskich. W przeszłości różnice te rodziły różnego rodzaju napięcia, a nawet konflikty. Jednak w wielu wymiarach życia społecznego, gospodarczego, a także kulturowego, istniała „praktyczna ekumenia”. Jej istotą był fakt ponadkonfesyjnego działania, a więc współpraca bez względu na wyznanie. Tak było m.in. na polu budownictwa organowego, które w tradycji Dolnego i Górnego Śląska stanowi niezwykłe bogactwo kulturowe. Niniejszy artykuł prezentuje przykłady takiego sposobu działania z okresu XIX i początku XX w. Spośród dolnośląskich organmistrzów został przykładowo wybrany wrocławski budowniczy Morit…

Generalized curved beam on elastic foundation solved by Transfer Matrix Method

2011

A solution of space curved bars with generalized Winkler soil found by means of Transfer Matrix Method is presented. Distributed, concentrated loads and imposed strains are applied to the beam as well as rigid or elastic boundaries are considered at the ends. The proposed approach gives the analytical and numerical exact solution for circular beams and rings, loaded in the plane or perpendicular to it. A well-approximated solution can be found for general space curved bars with complex geometry. Elastic foundation is characterized by six parameters of stiffness in different directions: three for rectilinear springs and three for rotational springs. The beam has axial, shear, bending and tor…

Bounds on plastic strains for elastic plastic structures in plastic shakedown conditions

2007

The problem related to the computation of bounds on plastic deformations for structures in plastic shakedown condition (alternating plasticity) is studied. In particular, reference is made to structures discretized by finite elements constituted by elastic perfectly plastic material and subjected to a special combination of fixed and cyclic loads. The load history is known during the steady-state phase, but it is unknown during the previous transient phase; so, as a consequence, it is not possible to know the complete elastic plastic structural response. The interest is therefore focused on the computation of bounds on suitable measures of the plastic strain which characterizes just the fir…

A Top-Down Approach Based on the Circularity Potential to Increase the Use of Reclaimed Asphalt

2023

Resource depletion and climate change, amongst others, are increasingly worrying environmental challenges for which the road engineering sector is a major contributor. Globally, viable solutions that comply with the principles of circular economy (CE) are being investigated that can replace conventional asphalt mixtures in a post-fossil fuel society. The use of reclaimed asphalt (RA) is a widely used and well-established method to reduce the environmental and economic impacts of asphalt mixtures while increasing their circularity. However, RA’s market supply and demand have not yet been systematically analyzed and established. Moreover, the actual circularity potential and the opportu…

A Strategy for the Prediction of the Response of Hysteretic Systems: A Base for Capacity Assessment of Buildings under Seismic Load

2014

A statistical non linearization method is used to approximate systems modeled by the Bouc differential equa- tion and excited by a Gaussian white noise external load. To this aim restricted potential models (RPM) are used, which are suitable for an extended number of nonlinear problems as have been proved several times. Since the solution of RPM is known by the probabilistic point of view, all statistical characteristics can be derived at once with advantages by the computational point of view. Hence, this paper discusses the possibility to determine sets of parameters characterizing po- tential models that are valid for describing a hysteretic behavior. In this way the characterization of …

GReen roofs and façades agriculture (GRF) for supporting building energy efficiency

2011

A New Solution for Sea Wave Energy Harvesting, the Proposal of an Ironless Linear Generator

2020

The paper investigates an innovative ironless linear generator, installable inside a wave energy converter, in order to produce electricity from sea waves. This energy source is considered strategic for the future, especially in small islands

Axial Flux Permanent Magnet Synchronous Generators for Pico Hydropower Application: A Parametrical Study

2022

A pico hydropower plant is an energy harvesting system that allows energy production using the power of the water flowing in small watercourses, and in water distribution network. Axial Flow Flux Permanent Magnet Synchronous Generator (AFPMSG) are particularly suitable for this application, being efficient machines that achieve high power with small dimensions. This paper presents a parametrical study of several configurations and topologies of three-phase and single-phase AFPMSG, for pico hydropower application, to assess the most suitable dimensional characteristics for the most energy production using a safe voltage of 25 V. The AFPMSGs here considered has a simple single stator and roto…

Development of energy-saving innovative hydraulic mortars reusing spent coffee ground for applications in construction

2023

This paper reports the development of green bio-composite mortars, obtained reusing spent coffee ground (SCG), an agri-food residue, in the light of the Circular Economy approach. This process can boost the sustainability in Construction and proposes an alternative to SCG disposal in landfill, potentially dangerous to humans and the environment. For the first time, specimens were produced and compared using different blends of conventional hydraulic binders (ordinary Portland cement and natural hydraulic lime); SCG partially substituted sand (up to 15 wt.%, with a 2.5% increment) for the aggregate mix. The manufacturing process was performed at ambient conditions (20°C, 65% RH) resulting hi…