scholarly journals Mechanization of Construction Tasks: Level Assessment and Craft Workforce Awareness

2021 ◽  
Author(s):  
Diego Calvetti ◽  
Pedro Mêda ◽  
Miguel Chichorro Gonçalves ◽  
Hipólito Sousa
Keyword(s):  
Architectura ◽  
2018 ◽  
Vol 48 (1-2) ◽  
pp. 154-183
Author(s):  
Andreas Schwarting

Abstract Hermann Blomeier is one of around 80 graduates from the Bau- und Ausbauabteilung, a comparatively small group among the more than 1200 students at the Bauhaus who have only recently come under the spotlight of research. The biographies of several graduates are known, such as Franz Ehrlich, Erich Consemüller, Howard Dearstyne, Selman Selmanagić, Herbert Hirche or Arieh Sharon; many more are lost, however. Although the Bauhaus was not a ›school‹ in the sense of a unified design approach and a binding canon of forms, it is instructive on an individual level to study the work of Blomeier, one of the Bauhaus graduates and students of Ludwig Mies van der Rohe who has so far received little attention. On the basis of three projects from the 1950s, the viability of the design approaches conveyed at the Bauhaus for the construction tasks of the post-war period are examined. First, the ferry ports connecting Konstanz and Meersburg will be considered as the first major project by Blomeier after the Second World War. The buildings for the Bodensee-Wasserversorgung – at times the largest construction site in West Germany of the 1950s – represent an outstanding example of industrial architecture and technical infrastructure in their fusion of art, technology and landscape. The smallest of the three projects, the building for the rowing club Neptun, located directly opposite the old town of Konstanz on the Seerhein, points with its innovative modular primary structure well beyond contemporary architecture and anticipates developments of the late 1960s, such as the Japanese Metabolists or the Plug-In-City of Archigram.


2012 ◽  
Vol 518-523 ◽  
pp. 5886-5893
Author(s):  
Lu Cang Wang ◽  
Wei Li ◽  
Jing Gao

“The Project of Nomadic Settlement” is one of the major construction tasks for “Gannan Important Water Supply Ecological Functional Area of Yellow River”. Because of the distribution of population and settlements have obvious discreteness and wavering in alpine pasture, it is necessary to plan and guide agricultural and grazing villages during the process of the construction of nomadic settlements, spatial displacement and integration of population and settlement. The nomadic habitation mode in Luqu county undergoes four stages. At present, it adopts four settlement modes, that is, centralized settlement mode in the county town, settlement mode in the village, settlement along the highway mode and dispersed settlement mode, involving a total of 2,645households,13,783people and be arranged in 21 settlements. The paper adopts 14 indicators related conditions of economic development, social development conditions, geographic conditions, measures the overall strength of 24 administrative villages in Luqu, the whole villages are divided into four grade. The results show that the suburban villages are better than the surrounding villages and towns, pure pastoral farming are better than farming-pastoral villages. Accordingly, 24 villages are divided into four types—community-based villages, developing villages, controlling villages, and revoking-merging villages. Finally, it also proposes the path on village plan guidelines.


2002 ◽  
Vol 34 (1) ◽  
pp. 191-195 ◽  
Author(s):  
Carlisle E. George

Author(s):  
D. Xue ◽  
S. Y. Cheing ◽  
P. Gu

This research introduces a new systematic approach to identify the optimal design configuration and attributes to minimize the potential construction project changes. The second part of this paper focuses on the attribute design aspect. In this research, the potential changes of design attribute values are modeled by probability distribution functions. Attribute values of the design whose construction tasks are least sensitive to the changes of these attribute values are identified based upon Taguchi Method. In addition, estimation of the potential project change cost due to the potential design attribute value changes is also discussed. Case studies in pipeline engineering design and construction have been conducted to show the effectiveness of the introduced approach.


Systems ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 7
Author(s):  
John Turner ◽  
Dave Snowden ◽  
Nigel Thurlow

The substrate-independence theory utilizes sensemaking techniques to provide cognitively based scaffolds that guide and structure learning. Scaffolds are cognitive abstractions of constraints that relate to information within a system. The substrate-independence theory concentrates on the flow of information as the underlying property of the host system. The substrate-independence theory views social systems as complex adaptive systems capable of repurposing their structure to combat external threats by utilizing constructors and substrates. Constructor theory is used to identify potential construction tasks, the legitimate input and output states that are possible, to map the desired change in the substrate’s attributes. Construction tasks can be mapped in advance for ordered and known environments. Construction tasks may also be mapped in either real-time or post hoc for unordered and complex environments using current sensemaking techniques. Mapping of the construction tasks in real-time becomes part of the landscape, and scaffolds are implemented to aid in achieving the desired state or move to a more manageable environment (e.g., from complex to complicated).


2020 ◽  
Vol 10 (12) ◽  
pp. 955
Author(s):  
Isa Zappullo ◽  
Luigi Trojano ◽  
Roberta Cecere ◽  
Gennaro Raimo ◽  
Monica Positano ◽  
...  

Background: Spatial analysis encompasses the ability to perceive the visual world by arranging the local elements (“the trees”) into a coherent global configuration (“the forest”). During childhood, this ability gradually switches from a local to a global precedence, which contributes to changes in children’s spatial construction abilities, such as drawing or building blocks. At present, it is not clear whether enhanced global or local processing or, alternatively, whether switching between these two levels best accounts for children’s spatial constructional abilities. Methods: We assessed typically developing children 7 to 8 years old on a global/local switching task and on two widely used spatial construction tasks (the Rey–Osterrieth Complex Figure and the Block Design test). Results: The ability to switch from global to local level, rather than a global or a local advantage, best accounted for children’s performance on both spatial construction tasks. Conclusions: The present findings contribute to elucidate the relationship between visual perception and spatial construction in children showing that the ease with which children switch perception from global to local processing is an important factor in their performance on tasks requiring complex drawing and block assembling.


2019 ◽  
Vol 11 (22) ◽  
pp. 2606 ◽  
Author(s):  
Zhiqiang Li ◽  
Chengqi Cheng

The increasing availability of sensors enables the combination of a high-spatial-resolution panchromatic image and a low-spatial-resolution multispectral image, which has become a hotspot in recent years for many applications. To address the spectral and spatial distortions that adversely affect the conventional methods, a pan-sharpening method based on a convolutional neural network (CNN) architecture is proposed in this paper, where the low-spatial-resolution multispectral image is upgraded and integrated with the high-spatial-resolution panchromatic image to produce a new multispectral image with high spatial resolution. Based on the pyramid structure of the CNN architecture, the proposed method has high learning capacity to generate more representative and robust hierarchical features for construction tasks. Moreover, the highly nonlinear fusion process can be effectively simulated by stacking several linear filtering layers, which is suitable for learning the complex mapping relationship between a high-spatial-resolution panchromatic and low-spatial-resolution multispectral image. Both qualitative and quantitative experimental analyses were carried out on images captured from a Landsat 8 on-board operational land imager (LOI) sensor to demonstrate the method’s performance. The results regarding the sensitivity analysis of the involved parameters indicate the effects of parameters on the performance of our CNN-based pan-sharpening approach. Additionally, our CNN-based pan-sharpening approach outperforms other existing conventional pan-sharpening methods with a more promising fusion result for different landcovers, with differences in Erreur Relative Globale Adimensionnelle de Synthse (ERGAS), root-mean-squared error (RMSE), and spectral angle mapper (SAM) of 0.69, 0.0021, and 0.81 on average, respectively.


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