Analysis and Research on Spatial Nodes of Historical Villages based on Spatial Syntax Theory: Cuiwei Village in Qianshan Area of Zhuhai as an Example

This research takes Cuiwei Village located in Qianshan District of Zhuhai City as an example. The village is investigated and analyzed through field research, and the street scale, spatial structure, functional characteristics of streets, internal commercial distribution forms, and functions in the Cuiwei Historic Block are studied and analyzed. Based on the convex space analysis method and the line of sight analysis method in the space syntax theory, with the help of the Depthmap software, the complex street nodes, that is, the space of the two nodes A and B analyzed. Through the establishment of a viewshed model, including the analysis of the viewport integration degree, the viewport agglomeration degree, the viewport connection value and the spatial characteristics of the historical area, the most representative traditional buildings in the village, namely the Sanwang Temple and the Weishi Mansion, are selected. =N and when the radius R=3, observe the changes of the two parameters, the integration of the visual field and the visual depth of the two historical buildings. And with the help of Baidu time machine photos in different periods to observe and record the store's changes and people's behavioural characteristics. The results show that: at the present stage, the coordination of villages is poor, people's recognition in the village space is weak, and people cannot use local perception to reflect the overall space. There are obvious sub-interfaces between the interior of the village and the outside world—good but poor global intelligibility. After an on-the-spot investigation and analysis, it can be seen that although people can walk out of Cuiwei Village, they are always in a state of confusion, and it is difficult to grasp the spatial form of the overall area. Therefore, the space syntax analysis results are consistent with the field survey results, so this research method has good reference value and reference significance in the study of village space.

INFLUENCE OF FRICTION IN THE ARMORED FACE CONVEYOR CHAIN ON DYNAMICS AND ENERGY EFFICIENCY

The range of values ​​of the coefficient of resistance to movement of the chain of typical longwall armored face conveyors and the coefficient of inner viscous friction in the chain, both immersed in the moving load and during the idle run of the conveyor, is estimated. The computer model of the conveyor is built as a multi-mass elastic-viscous stretched closed chain without sag with the number of masses n = 200 and one induction drive motor located in the head of the conveyor. Using the constructed model, three-dimensional space-time dynamic characteristics of speeds and forces in the chain of the CP72 longwall armored face conveyor are obtained. Start up to rated speed v≈1 m / s and the working process is simulated with an unloaded conveyor. The spatial form of frictional self-oscillations in the model with distributed parameters is shown. The resonance frequencies and amplitudes of oscillations of the efforts in the circuit and the length of the corresponding spatial waves have been determined. It was found that at the first and second resonance frequencies, self-oscillations are not excited, since the damping effect of the electric drive is quite pronounced in this frequency band. The direct connection of vibration amplitudes with the energy efficiency of the conveyor electric drive is indicated.

Floquet Spectral Almost-Periodic Modulation of Massive Finite and Infinite Strongly Coupled Arrays: Dense-Massive-MIMO, Intelligent-Surfaces, 5G, and 6G Applications

In this study, we introduce a new formulation based on Floquet (Fourier) spectral analysis combined with a spectral modulation technique (and its spatial form) to study strongly coupled sublattices predefined in the infinite and large finite extent of almost-periodic antenna arrays (e.g., metasurfaces). This analysis is very relevant for dense-massive-MIMO, intelligent-surfaces, 5G, and 6G applications (used for very small areas with a large number of elements such as millimeter and terahertz waves applications). The numerical method that is adopted to model the structure is the method of moments simplified by equivalent circuits MoM GEC. Other numerical methods (such as the ASM-array scanning method and the windowing Fourier method) used this analysis in their kernel to treat periodic and pseudo-periodic (or quasi-periodic) arrays.

The Effect of Urban Spatial Form on Energy Efficiency: A Cross-Sectional Study in China

Rational planning and optimization of urban spatial form to achieve the goal of energy efficient utilization and carbon emission reduction is one of the important ways to improve energy efficiency. We deconstruct urban spatial form into centrality, aggregation and complexity, and analyze net effect and its heterogeneity of urban spatial form on energy efficiency with OLS, quantile regression model as well as grouped regression model. The results show that the effects of urban spatial centrality and complexity on energy efficiency are nonlinear. For the vast majority of cities, strengthening urban spatial centrality will significantly improve energy efficiency, but the growth rate will gradually decrease. The impact effect of urban complexity on energy efficiency has the characteristics of U-shaped trend with an inflection point value of 0.429. And for the three-quarters of urban samples, enhancing urban spatial complexity will reduce energy efficiency. The positive effect of urban spatial aggregation on energy efficiency is only significant in cities with high quantile for energy efficiency. In terms of urban heterogeneity, the positive effects of spatial centrality and aggregation on energy efficiency are more obvious in megacities with a permanent population of more than 5 million, and the negative effect of spatial complexity on energy efficiency is more obvious in small and medium-sized cities. Whether it is promotion or inhibition, the urban samples with high energy efficiency are more affected by the change of urban spatial form. Optimizing the urban spatial form is one of the important ways to improve the energy efficiency, and the policy setting should give full consideration to the urban heterogeneity and classified policies.

The Role of Proximity in Developing an Inter-Regional Innovation System

While most innovation collaboration projects consist of partners who are located at close proximity, recent literature has explored the development of innovation collaboration in the context of non-spatial proximity. Using a longitudinal mixed methods design, this article explores the inter-regional collaboration of triple helix partners from four non-contiguous European regions (Bucharest-Ilfov, Romania; Central Hungary, Hungary; Castilla-La Mancha, Spain; and South East, Ireland) which worked together to develop an inter-regional innovation system. The results from the study identified three non-spatial forms of proximity (social, cognitive and organisational) that were key determinants for developing the successful inter- regional innovation collaboration studied in this research. Based on the findings derived from this research, an inter-regional innovation system framework was developed to facilitate collaboration between stakeholders based in non-contiguous regions without them having to depend on geographical proximity. The major contributions of this research to theory and practice are the development of a novel framework for inter-regional innovation systems (iRIS) which can be applied by stakeholders in regions that want to collaborate from a distance. Furthermore, the research suggests that the substitution mechanism of geographical proximity consists of not just one non-spatial form, but it consists of the three non-spatial forms identified in this research.

The Spatial Form of Digital Nonlinear Landscape Architecture Design Based on Computer Big Data

Condensing the multi-dimensional digital model of green urban design, and constructing a digital method system of it progressively layer by layer. Based on this research background, the dissertation designs the spatial form of landscape architecture based on the data visualisation of nonlinear technology. The article uses the colour zoning method to design the actual scene of the garden landscape with nonlinear parameteriszation. The simulation result analyses that the proposed nonlinear algorithm has realised the efficiency improvement purpose of landscape architecture design.

Sound phantoms: The hidden sonic signatures resident in objects with particular reference to that of the tree

<p>This exegesis informs the ten accompanying audiovisual artworks which express the concept of the sound phantom. The sound phantom is a speculative entity, enjoying persistence, and harboured by all objects. It consists of every sound, real or conceptual, that the object has made or could make, past and future, time-condensed and folded into spatial form. Once this form, or field, is entered by a listener, various sonic representations of the object can be experienced. The object chosen for this paper is that of the tree. There is a possibility that the sound phantom is an ancient idea in both academia and cultural fora, though it has not necessarily enjoyed the scrutiny and artistic response presented here. Given that the actual sound of an object is only part of the sound phantom, the phantom encompasses sonic representation of its other sensual properties (such as visual and textural) as well as conceptual (such as human and non-human perceptions of the object, and its own memories and goals). The sound phantom can be imagined as a zone straddling the boundary of scientific/philosophical understanding and the unknown. There is support from existing academic research for the existence of such a concept, not least in that conceptual and sensory objects enjoy the same status as objects, even if their ‘realness’ is what is in question. This also implies that at some level these objects have experience and even agency, even if it is far from human understanding. Once we accept that different life forms exist on vastly different timescales, it becomes easier to accept the notion that slowly-moving organisms like trees may be able to sense, remember, communicate and make decisions. If we could somehow perceive the object’s ‘sonic self’, that may re-encourage an idea that has been in decline over the last few hundred years: that of inter-entity empathy. At least in practice, it is undeniable that the environment and its non-human inhabitants have been severely disrespected and damaged to a critical point in modern times. If we are able to empathise with other things through art, we might yet rekindle enough action to avert disaster to both the world and ourselves. I have chosen established media to portray the idea of the sound phantom, using 2D projection of biaxial 360º video material as a visual guide to the immersive 7.1-surround sonic material. There are other artists that have approached various aspects of the idea of the sound phantom, if not necessarily the political reasons for doing so. Even though our perception of the sound phantom can only be partial, through this paper and our powers of cognition, we might yet be able to grasp the concept and remember that we are not seperate from the world, but of it, and would do well to realise that through our individual and collective actions. This exegesis and the works are a first a step along that pathway.</p>

Sound phantoms: The hidden sonic signatures resident in objects with particular reference to that of the tree

<p>This exegesis informs the ten accompanying audiovisual artworks which express the concept of the sound phantom. The sound phantom is a speculative entity, enjoying persistence, and harboured by all objects. It consists of every sound, real or conceptual, that the object has made or could make, past and future, time-condensed and folded into spatial form. Once this form, or field, is entered by a listener, various sonic representations of the object can be experienced. The object chosen for this paper is that of the tree. There is a possibility that the sound phantom is an ancient idea in both academia and cultural fora, though it has not necessarily enjoyed the scrutiny and artistic response presented here. Given that the actual sound of an object is only part of the sound phantom, the phantom encompasses sonic representation of its other sensual properties (such as visual and textural) as well as conceptual (such as human and non-human perceptions of the object, and its own memories and goals). The sound phantom can be imagined as a zone straddling the boundary of scientific/philosophical understanding and the unknown. There is support from existing academic research for the existence of such a concept, not least in that conceptual and sensory objects enjoy the same status as objects, even if their ‘realness’ is what is in question. This also implies that at some level these objects have experience and even agency, even if it is far from human understanding. Once we accept that different life forms exist on vastly different timescales, it becomes easier to accept the notion that slowly-moving organisms like trees may be able to sense, remember, communicate and make decisions. If we could somehow perceive the object’s ‘sonic self’, that may re-encourage an idea that has been in decline over the last few hundred years: that of inter-entity empathy. At least in practice, it is undeniable that the environment and its non-human inhabitants have been severely disrespected and damaged to a critical point in modern times. If we are able to empathise with other things through art, we might yet rekindle enough action to avert disaster to both the world and ourselves. I have chosen established media to portray the idea of the sound phantom, using 2D projection of biaxial 360º video material as a visual guide to the immersive 7.1-surround sonic material. There are other artists that have approached various aspects of the idea of the sound phantom, if not necessarily the political reasons for doing so. Even though our perception of the sound phantom can only be partial, through this paper and our powers of cognition, we might yet be able to grasp the concept and remember that we are not seperate from the world, but of it, and would do well to realise that through our individual and collective actions. This exegesis and the works are a first a step along that pathway.</p>

Textronics spacer knitted material tests as a key element of the diagnostic system that monitors above the proper level of seat vibration

This research is focused on the construction and examination of a prototype of a spacer knitted material with integrated sensors. The combination of textiles with elements of electronics, computer science, and a knowledge of automation is called textronics. This type of material has been proposed as a component of diagnostic systems to monitor the extension level of vibration in employee seats at selected workstations or in children’s chairs. The purpose of the diagnostic system is to improve personal protective equipment (PPE) and increase employee safety. The spacer knitted material was tested with vibration frequencies in the range of 0–40 Hz to develop metrological properties under reproducible and repeatable conditions. The tested spacer knitted material meets the requirements of sensory properties such as vibration. The tested material is characterized by the following metrological parameters: total uncertainty U = 4.5%, sensitivity Sa = 0.64 [V/s2/m] and excitability threshold of 5 Pa with simultaneous high coefficient of low-frequency vibration damping of effective amplitude transmissibility (SEAT) = 2.3. Spacer knitted materials are modern constructs that enable the creation of new hybrid structures that have other properties, e.g., sensory suppression, in addition to spatial form.

Laminar-turbulent transitions during thermal gravitational-capillary convection in horizontal liquid layers heated from below

The evolution of the spatial form of the flow versus the Rayleigh number in layers with two rigid horizontal boundaries and layers with a free surface is experimentally investigated depending on the Rayleigh and Marangoni numbers. The experiments were carried out with layers of ethyl alcohol and water. A thermal imager was used to measure temperature fields on free surfaces of liquids.