scholarly journals A city is not a tree

2021 ◽  
Author(s):  
◽  
Michael Richards

<p>This research investigates the generation of urban environments through the use of visual programming tools. These tools enable the procedural creation of architectural geometries for installation in design environments, with a focus on producing outputs for virtual implementation, including small scale built environments, individual buildings, city blocks, and neighbourhoods.  The creation of large-scale urban environments is a complex and time-consuming task. Subsequently, this field of research has a high level of relevance in the areas of architecture, design, urban planning, film, entertainment, and so forth. In most situations, the groups responsible for the creation of these environments do not contain members with architectural backgrounds. Instead, they consist of designers, computer scientists, technicians, and other specialists. These groups are reliant on their collective experience, skill, and reference materials to create their works.  This thesis proposes that architects possess knowledge, skills, and training suitable for utilisation by this industry. As such, this research explores applying an architectural education with a greater multidisciplinary focus.  This investigation concludes that while visual programming tools are incredibly powerful, they have their limitations. This research further concludes that because there are so many facets to the creation of these environments this area of investigation is best suited to a team of researchers. While individuals can achieve a significant amount, the contribution of outside parties would have had benefits at every stage of the work. The sharing of knowledge, skills, and understandings would allow for the creation of systems that function to generate the best outcomes possible.</p>

2021 ◽  
Author(s):  
◽  
Michael Richards

<p>This research investigates the generation of urban environments through the use of visual programming tools. These tools enable the procedural creation of architectural geometries for installation in design environments, with a focus on producing outputs for virtual implementation, including small scale built environments, individual buildings, city blocks, and neighbourhoods.  The creation of large-scale urban environments is a complex and time-consuming task. Subsequently, this field of research has a high level of relevance in the areas of architecture, design, urban planning, film, entertainment, and so forth. In most situations, the groups responsible for the creation of these environments do not contain members with architectural backgrounds. Instead, they consist of designers, computer scientists, technicians, and other specialists. These groups are reliant on their collective experience, skill, and reference materials to create their works.  This thesis proposes that architects possess knowledge, skills, and training suitable for utilisation by this industry. As such, this research explores applying an architectural education with a greater multidisciplinary focus.  This investigation concludes that while visual programming tools are incredibly powerful, they have their limitations. This research further concludes that because there are so many facets to the creation of these environments this area of investigation is best suited to a team of researchers. While individuals can achieve a significant amount, the contribution of outside parties would have had benefits at every stage of the work. The sharing of knowledge, skills, and understandings would allow for the creation of systems that function to generate the best outcomes possible.</p>


Author(s):  
Angela Nastevska ◽  
Jovana Jovanova ◽  
Mary Frecker

Abstract Large scale structures can benefit from the design of compliant joints that can provide flexibility and adaptability. A high level of deformation is achieved locally with the design of flexures in compliant mechanisms. Additionally, by introducing contact-aided compliant mechanisms, nonlinear bending stiffness is achieved to make the joints flexible in one direction and stiff in the opposite one. All these concepts have been explored in small scale engineering design, but they have not been applied to large scale structures. In this paper the design of a large scale compliant mechanism is proposed for novel design of a foldable shipping container. The superelasticity of nickel titanium is shown to be beneficial in designing the joints of the compliant mechanism.


2020 ◽  
Vol 4 (4) ◽  
pp. 79
Author(s):  
Julian Kreimeier ◽  
Timo Götzelmann

Although most readers associate the term virtual reality (VR) with visually appealing entertainment content, this technology also promises to be helpful to disadvantaged people like blind or visually impaired people. While overcoming physical objects’ and spaces’ limitations, virtual objects and environments that can be spatially explored have a particular benefit. To give readers a complete, clear and concise overview of current and past publications on touchable and walkable audio supplemented VR applications for blind and visually impaired users, this survey paper presents a high-level taxonomy to cluster the work done up to now from the perspective of technology, interaction and application. In this respect, we introduced a classification into small-, medium- and large-scale virtual environments to cluster and characterize related work. Our comprehensive table shows that especially grounded force feedback devices for haptic feedback (‘small scale’) were strongly researched in different applications scenarios and mainly from an exocentric perspective, but there are also increasingly physically (‘medium scale’) or avatar-walkable (‘large scale’) egocentric audio-haptic virtual environments. In this respect, novel and widespread interfaces such as smartphones or nowadays consumer grade VR components represent a promising potential for further improvements. Our survey paper provides a database on related work to foster the creation process of new ideas and approaches for both technical and methodological aspects.


Green ◽  
2014 ◽  
Vol 4 (1-6) ◽  
Author(s):  
Arndt Neuhaus ◽  
Frank-Detlef Drake ◽  
Gunnar Hoffmann ◽  
Friedrich Schulte

AbstractThe transition to a sustainable electricity supply from renewable energy sources (RES) imposes major technical and economic challenges upon market players and the legislator. In particular the rapid growth of volatile wind power and photovoltaic generation requires a high level of flexibility of the entire electricity system, therefore major investments in infrastructures are needed to maintain system stability. This raises the important question about the role that central large-scale energy storage and/or small-scale distributed storage (“energy storage at home”) are going to play in the energy transition. Economic analyses show that the importance of energy storage is going to be rather limited in the medium term. Especially competing options like intelligent grid extension and flexible operation of power plants are expected to remain favourable. Nonetheless additional storage capacities are required if the share of RES substantially exceeds 50% in the long term. Due to the fundamental significance of energy storages, R&D considers a broad variety of types each suitable for a specific class of application.


2013 ◽  
Vol 10 (11) ◽  
pp. 14535-14555
Author(s):  
L. Chen ◽  
Y. Zhong ◽  
G. Wei ◽  
Z. Shen

Abstract. The identification of priority management areas (PMAs) is essential for the control of non-point source (NPS) pollution, especially for a large-scale watershed. However, previous studies have typically focused on small-scale catchments adjacent to specific assessment points; thus, the interactions between multiple river points remain poorly understood. In this study, a multiple-assessment-point PMA (MAP-PMA) framework was proposed by integrating the upstream sources and the downstream transport aspects of NPS pollution. Based on the results, the integration of the upstream input changes was vital for the final PMAs map, especially for downstream areas. Contrary to conventional wisdom, this research recommended that the NPS pollutants could be best controlled among the upstream high-level PMAs when protecting the water quality of the entire watershed. The MAP-PMA framework provided a more cost-effective tool for the establishment of conservation practices, especially for a large-scale watershed.


1981 ◽  
Vol 6 ◽  
Author(s):  
Gerald B. Woolsey ◽  
M. John Plodinec

ABSTRACTVitrification is the reference process for the immobilization of radioactive waste from the production of defense materials at the Savannah River Plant (SRP). Since 1979, a small vitrification facility (1 Ib/hr) has been operated at the Savannah River Laboratory using actual SRP waste. In previous studies. dried waste was fed to this smaller melter. This report discusses direct feeding of actual liquid-waste slurries to the small melter. These liquidfeeding tests demonstrated that addition of premelted glass frit to the waste slurry reduces the amount of material volatilized. Results of these tests are in accord with results of large-scale tests with actual waste.


2016 ◽  
Vol 11 (1) ◽  
pp. 7
Author(s):  
Setiyono . ◽  
Satmoko Yudo

Muncar region known as the area of the fish and the fish processing industry. Many of the fish processing industries in large scale, small scale and household at this time growing so rapidly. With the rapid growth of the fish processing industry in the Muncar city has provided a very significant impact on the city growth, which eventually brought the various impacts, whether they are positive or negative. One of the negative impact of processing industry growth in Muncar is environmental of pollution is the discharge of liquid waste from industrial fish-processing industry. Low level of understanding IPAL waste management system and cause difficulties to manage the waste, therefore almostall waste that generated in the region immediately removed to the public channels. Waste disposal without treatment is causing high level of environmental pollution in the vicinity of the location of industry. One effort to solve the problem of waste-processing technology is determine processingof waste water and fish processing, it has been done to test prototype installation processing waste water in one of the fish processing industry in the Muncar District. Key words : fish processing industry waste water, environmetal pollution, waste water processing prototype.


1983 ◽  
Vol 3 (8) ◽  
pp. 1430-1439 ◽  
Author(s):  
M J Hynes ◽  
C M Corrick ◽  
J A King

Previous analysis of the amdS gene of Aspergillus nidulans has identified multiple regulatory circuits mediated by trans-acting regulatory genes, cis-acting mutations have been identified and shown to specifically affect individual regulatory circuits. Fine-structure genetic mapping of the amdS regions showed that these cis-acting mutations occur in a complex controlling region adjacent to the amdS structural gene. The amdS gene was cloned by differential hybridization, using cDNA probes derived from a high-level-producing strain and from a strain with a large amdS deletion mutation. RNA blotting experiments showed that a single RNA species of 1,600 to 1,700 base pairs is transcribed from the amdS gene. DNA blotting experiments on a large number of amdS mutant strains, including deletions and translocations, allowed the genetic and physical maps of the gene to be correlated. The controlling region of the gene is situated at the 5' end of the gene and the direction of transcription is toward the centromere of chromosome III. The regulatory mutations in the controlling region were found to be due to small-scale alterations in the DNA rather than to large-scale rearrangements resulting in gene fusions.


Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5360
Author(s):  
Leyre Azpilicueta ◽  
Peio Lopez-Iturri ◽  
Jaime Zuñiga-Mejia ◽  
Mikel Celaya-Echarri ◽  
Fidel Alejandro Rodríguez-Corbo ◽  
...  

In this work, the channel characterization in terms of large-scale propagation, small-scale propagation, statistical and interference analysis of Fifth-Generation (5G) Millimeter Wave (mmWave) bands for wireless networks for 28, 30 and 60 GHz is presented in both an outdoor urban complex scenario and an indoor scenario, in order to consider a multi-functional, large node-density 5G network operation. An in-house deterministic Three-Dimensional Ray-Launching (3D-RL) code has been used for that purpose, considering all the material properties of the obstacles within the scenario at the frequency under analysis, with the aid of purpose-specific implemented mmWave simulation modules. Different beamforming radiation patterns of the transmitter antenna have been considered, emulating a 5G system operation. Spatial interference analysis as well as time domain characteristics have been retrieved as a function of node location and configuration.


2014 ◽  
Vol 18 (4) ◽  
pp. 1265-1272 ◽  
Author(s):  
L. Chen ◽  
Y. Zhong ◽  
G. Wei ◽  
Z. Shen

Abstract. The identification of priority management areas (PMAs) is essential for the control of non-point-source (NPS) pollution, especially for a large-scale watershed. However, previous studies have typically focused on small-scale catchments adjacent to specific assessment points; thus, the interactions between multiple river points remain poorly understood. In this study, a multiple-assessment-point PMA (MAP-PMA) framework was proposed by integrating the upstream sources and the downstream transport aspects of NPS pollution. Daning River watershed was taken as a case study in this paper, which has demonstrated that the integration of the upstream input changes was vital for the final PMAs map, especially for downstream areas. Contrary to conventional wisdom, this research recommended that the NPS pollutants could be best controlled among the upstream high-level PMAs when protecting the water quality of the entire watershed. The MAP-PMA framework provided a more cost-effective tool for the establishment of conservation practices, especially for a large-scale watershed.


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