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Scale and composition, a strategy of redeveloping the historic area in Shanghai Old Town
No full textThe old town of Shanghai is the cradle of Shanghai city and still at the centre of the grand urban pattern. Being an important historical and cultural area, together with its surrounding district formed the core of the city's economy, public activity and culture. The renewal of the old town will also be a crucial component of the establishment of Shanghai as a distinct global city which combines difficulties from all aspect of the economic sustainability and cultural feature and no longer can be avoided in the following development. Complicated and specific issues could be located in the renovation and design of the old town. And this study mainly hopes to discuss the realization of the cultural feature and the urban fabric in the process of redevelopment, focusing a certain area of the old town.
The area selected was the block between Wangyun Road and middle Henan Road, in the centre of the old town, which significantly influenced the continuity of the urban fabric, as the object of the research. Through detailed mapping and field visits, we explored the variegated and spontaneous spatial characteristics of the town’s fabric and the unique local humanistic structure reflected in between. Searching for a way to achieve the integral development and cultural continuity in the context of local urban renewal. Through research, we found that in the old town of Shanghai which has the characteristics of Jiangnan water town landscape and Lilong Shikumen residence, scale and composition are important factors for understanding the spatial and humanistic structure of this area, corresponding to the richness of morphological texture and the anfractuous spatial network. On this basis, attempt to propose a method of typifying different scales and combinations, thus, achieve the goal of guiding the following practice of the local urban redevelopment
A Novel DNN-based Image Watermarking Algorithm
No full textDNN architecture for image watermarking that balances the tasks
of embedding and detecting a watermark is presented. The system consists
of two networks: the embedder and the detector. A loss function based on
a structural similarity index measure minimizes the difference between the
original and watermarked signal. The average SSIM is 0.98 while the accuracy
is 99.99%
A Structural and Morphological Analysis of the Road Network of Ancient Mountain Towns: A Case Study of China’s Longxing Town
No full textThe morphological evolution of the road network of the ancient mountain town is the dynamic expression of the regional characteristics and the social and economic development. Based on the integration, integrated core and intelligibility of spatial syntax, this article analyzes the topology and the morphological change of the road network at Longxing town in Chongqing, China in 2009, 2016 and 2021. The morphological analysis is combined with the road network density, turning degree, the turning ratio and twisting ratio. The quantitative analysis demonstrates that: (1) The overall road network of the ancient town grows in a network and develops outwards to the south. (2) Its integrated core also moves south with the southward expansion of the road network. Consequently, the attraction point changes to the south, and the attraction of the original integrated core becomes lower. (3) Its density is increasing year by year; while the turning degree is decreasing year by year. In consequence, the morphological evolution of the road network of the ancient mountain town is regularized. Finally, based on the above structural and morphological analysis, we propose the corresponding protection and development strategy of the road network in the ancient mountain town
Analiza repertuaru metabolicznego i morfologii promieniowca Streptomyces rimosus ATCC 10970 w hodowlach bioreaktorowych prowadzonych przy różnych początkowych stężeniach źródeł węgla i azotu
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Evolutionary analysis between geographic typology and urban morphology of Jiangnan historical watertowns in northern Zhejiang, China
No full textOver the past century, water has played a vital role in the socioeconomic system which is beneficial for agricultural irrigation, river navigation, etc. The development of watertowns in the Jiangnan region of China has tight relationships with the geographic environment, of which territorial characteristics are currently declining due to modern urbanisation and social transformation. This paper establishes a morphological overview of the typical historical watertowns evolution process from the early 20th century to nowadays and intends to find out how watertowns interact with water under the influence of urban expansion. Using the Conzenian methods, we examine five types of watershed topography in Northern Zhejiang Plain, one of the relatively developed areas in the Jiangnan region. Then in the view of geomorphology and urban geography, maps and photographic data in the four years of 1918, 1969, 2000 and 2022 are vectorised to outline the two-dimensional variations of water bodies and building foundation forms of 19 historical watertown cases. Tracing watertown’s evolutionary process suggests that water forms and urban forms shift in particular geographic contexts in three stages: earliest synergistic relation, town fringe variation and new structure which may provide evidence for recognising and preserving local identity
Transformation processes in informal produced public spaces
No full textPeople develop their built environments through their own ideas, initiatives and economic possibilities. Additionally, this endeavour follows local self-help and self-management processes, which are crucial in the physical and social dynamics of cities, especially in Latin America. These results of urbanisation and construction may appear random and chaotic but there is often an underlying logic to the emergence and growth of forms of informality. Moreover, a temporal dimension, incrementalism and change are integral components of this system. As part of a wider study on spatial types of the occupations made by people in the public space, the objective of this work is to examine the processes of transformation within these spaces. Drawing on empirical evidence from Piura (Peru), this study addresses a range of possible forms of the informal production of space. The methods used are satellite imagery, direct observations, photographic studies and urban cartography. As a result, the work reveals that a space is never complete but is in constant flux, which often involves three primary types of change. Therefore, this study’s findings produce a better explanation of these processes, which challenge the prevailing model of urban development, planning and place creation
Dynamic Mutation Control in Continuous Genetic Algorithms
No full textIn this paper the adaptability of the mutation operation in continuous
genetic algorithms (CGAs) is taken into consideration from an analytical
perspective. For this purpose, based on the notation that has previously been
used to analyze the classical, binary genetic algorithm, a dynamic system
model of CGA has been created. In order to adapt the mutation probability
in successive generations, a linear controller has been applied. It allows
one to accelerate the evolution process. As a result, faster convergence is
obtained, as required in computationally intensive optimization problems
Antioxidant potential of selected herbal plants from various cultivation systems for cosmetic purposes
No full textThe aim of this study was to determine the value of the antioxidant potential of several domestic herbal plant species derived from conventional and organic crops, which, due to the content of valuable biologically active compounds with anti-inflammatory properties, can be used in the production of cosmetic preparations. The antioxidant potential of methanol extracts of the tested plants was determined using the FRAP method with ascorbic acid as a standard. The content of antioxidants in the studied plants ranged from 1.121 to 13.228 mg/g for samples from conventional crops and from 1.559 to 19.327 mg/g for samples from organic farming. Greater biological value of extracts obtained from plants grown in an organic system than in a conventional systemhas been indisputably demonstrated. The obtained research results may constitute an incentive for producers of cosmetics to choose native organic plants for the production of their products