Space Form Research Articles

Study on the Operation Mode of the Historic District of Cunha Street in Macao

The historic district of Cunha Street is a typical Portuguese commercial block in Macao. However, with the development of the city, the space forms of the districts in Cunha Street fail to update accordingly, resulting in the declining number of the tourists compared with that of the past. In view of this, by applying the method combing the Space Syntax, Traffic flow, and Poi business data, an analysis on the operation mode of the districts in Cunha Street is carried out,so as to explore the influences of space forms on the Choice of tourists and on the distribution of business forms in Cunha Street. Meanwhile, based on the aspects of optimizing space structure and bettering tourism experience for tourists, an evaluation system on the operation mode is constructed. In allusion to the analytic results, the suggestions of reconstruction strategy on the form distribution of businesses and space structure of roads are proposed.

On the existence of closed biconservative surfaces in space forms

On the existence of closed biconservative surfaces in space forms

Geodesics and natural complex magnetic trajectories on tangent bundles

In this paper, we investigate geodesics of the tangent bundle $TM$ of a Riemannian manifold $(M,g)$ endowed with an arbitrary pseudo-Riemannian $g$-natural metric of Kaluza-Klein type. Then considering a class of naturally defined almost complex structures on $TM$, constructed by V. Oproiu, we construct a class of magnetic fields and we characterize the corresponding magnetic curves on $TM$, when $(M,g)$ is a space form.

A priori bounds and existence of smooth solutions to Minkowski problems for log-concave measures in warped product space forms

<abstract><p>In the present paper, we prove the a priori bounds and existence of smooth solutions to a Minkowski type problem for the log-concave measure $ e^{-f(|x|^2)}dx $ in warped product space forms with zero sectional curvature. Our proof is based on the method of continuity. The crucial factor of the analysis is the a priori bounds of an auxiliary Monge-Ampère equation on $ \mathbb{S}^n $. The main result of the present paper extends the Minkowski type problem of log-concave measures to the space forms and it may be an attempt to get some new analysis for the log-concave measures.</p></abstract>

Remote workplaces over the time of Covid-19 in Poland as a form of organisational space

Remote workplaces over the time of Covid-19 in Poland as a form of organisational space

Nadstrešnice na stajalištima javnog gradskog prevoza u Beogradu - primer otvorenih javnih mikro-prostora u gradu

Micro-spaces - small-scale public city spaces - represent an important element in the structure of the city, both functionally and aesthetically. Due to their small scale, their importance is often overlooked by experts and investors. The paper describes the concept of canopies at public transport stops in Belgrade, which were created in the period from 2007 to the present day. By multiplying the basic type of canopy and its variations, a recognizable element of the city image is built. By upgrading the basic project and introducing additional elements from the repertoire of modern design, such as "green" constructions, "smart" technologies, energy efficiency, etc., this form of urban space would be additionally affirmed and contribute not only to the comfort of users, the creation of the identity of the city and public city transport, but also to general interests such as safety, health and environmental protection

A NEW FRACTAL MODIFIED BENJAMIN–BONA–MAHONY EQUATION: ITS GENERALIZED VARIATIONAL PRINCIPLE AND ABUNDANT EXACT SOLUTIONS

In this paper, we derive a new fractal modified Benjamin–Bona–Mahony equation (MBBME) that can model the long wave in the fractal dispersive media of the optical illusion field based on He’s fractal derivative. First, we apply the semi-inverse method (SIM) to develop its fractal generalized variational principle with the aid of the fractal two-scale transforms. The obtained fractal generalized variational principle reveals the conservation laws via the energy form in the fractal space. Second, Wang’s Bäcklund transformation-based method, which combines the Bäcklund transformation and the symbolic computation with the ansatz function schemes, is used to study the abundant exact solutions. Some new solutions in the form of the rational function-type, double-exp function-type, Sin-Cos function-type and the Sinh-Cosh function-type are successfully constructed. The impact of the fractal orders on the behaviors of the different solutions is elaborated in detail via the 3D plots, 2D contours and 2D curves, where we can find that: (1) When the fractal order [Formula: see text], the direction of wave propagation tends to be more vertical to the [Formula: see text]-axis, on the other hand, it tends to be more parallel to the [Formula: see text]-axis when [Formula: see text]; (2) The fractal order cannot impact the peak amplitude of the waveform; (3) For the periodic waveform, the fractal orders can affect its period, that is, the period becomes smaller when the fractal order [Formula: see text]. The obtained results show that the proposed methods are effective and powerful, and can construct the abundant exact solutions, which are expected to give some new enlightenment to study the variational theory and traveling wave solutions of the fractal partial differential equations.

ON THE GENERALIZED VARIATIONAL PRINCIPLE OF THE FRACTAL GARDNER EQUATION

The fractal calculus has gained more widespread attention in the last years. The fractal variational principle plays a major role in the fractal travelling wave theory of the fractal PDEs. This paper develops the fractal generalized variational principle (GVP) of the fractal Gardner equation by virtue of the Semi-inverse method (SIM) for the first time. On the other hand, we also discuss and verify the fractal GVP via the fractal two-scale transform (FTST) from another dimension field. The extracted fractal GVP shows the conservation laws through the energy form in the fractal space, and can be manipulated to explore the fractal solitary wave properties.

The Dilemma between Reducing the Thermal Stress in the Industrial Spaces and Ergonomics Arrangement in Low- and Middle-income Countries

Thermal heat stress is a leading cause of numerous occupational diseases that disturb worker performance and work quality and, in extreme circumstances, can result in death. When employees are exposed to severely hot or cold thermal settings, thermal discomfort is listed as one of the leading reasons for discontent in the job. Given the time individuals spend at work, studies assessing the comfort of the thermal environment are becoming increasingly relevant. However, most industrial spaces in low- and middle-income countries are designed without considering the workers' thermal comfort, which leads to an unmeasured decrease in productivity and many health considerations. This research aims to provide a methodology for developing the indoor thermal comfort of the workers in industrial spaces by optimizing the workers’ ergonomics, activity profiles, and building shell without implementing any mechanical cooling systems, which is not usual in low- and middle-income areas. The methodology is based on building a computer-based model on the Design Builder simulation tool based on current measures of temperature, humidity, wet-bulb temperature, air speed over each window, and indoor surface temperatures. Then, three different scenarios were built to optimize the indoor ergonomics of the factory in the first scenario, and the building shell in the second scenario, the activity profiles of the workers in the third scenario to become correspond with the NOISH criteria of maximum metabolic rate for each WBGT. After that, each scenario's results were associated with the workers' thermal sensation and air temperatures, which correlated the ergonomics of industrial spaces and the thermal comfort of workers there. The results of each scenario simulation were represented by horizontal and vertical sections of the air temperature and Percentage of People's Discomfort (PPD). Each scenario’s results referred to a decrease in the air temperature and PPD; however, all the scenarios combined decreased the PPD to around 50% for most of the measured working stations. The research concluded a methodology of optimizing any industrial space thermal performance without implementing any active ventilation techniques, which is considered the usual form of any industrial space in Egypt and most low and middle-income countries. Therefore, the presented methodology applies to most industrial spaces that face the dilemma of decreased productivity due to indoor thermal heat loads that affect the workers.

Systematic literature review: The adaptation of distance learning process during the COVID-19 pandemic using virtual educational spaces in metaverse

Virtual education has started to grab interest since technology emerges in everything in our life. Metaverse is one of the technologies that has been conceived since the late 90s and is currently being renewed and renovated to suit current changes. Yet, many teachers and students still do not know how to utilize Metaverse to create a new atmosphere in the learning process. Therefore, this study aims to show the results of using Metaverse in the form of virtual space in the educational field and how teachers and students respond to the process. In this study, the authors would like to conduct a Systematic Literature Review (SLR) on the advantages and disadvantages of virtual educational spaces in Metaverse based on many previous studies related to this topic. Survey results conducted by previous studies show that students mostly enjoy using Metaverse as their learning method and can comprehend several lessons better when using Metaverse than traditional learning- textbook-based and face-to-face learning. Unfortunately, only several studies focus on finding preferred subjects to teach using the Metaverse and for which educational level this method suits best. In general, the authors conclude that Metaverse has excellent potential in the future to be explored profoundly in the education field due to the development of skills in the use of technology and a significant increase in student practice scores. However, the guidance of teachers and parents is still needed so that students can avoid the disadvantages.

GENERALIZED VARIATIONAL STRUCTURE OF THE FRACTAL MODIFIED KDV–ZAKHAROV–KUZNETSOV EQUATION

A fractal modification of the modified KdV–Zakharov–Kuznetsov equation is suggested and its fractal generalized variational structure is established by means of the semi-inverse method. Furthermore, the obtained fractal generalized variational structure is discussed and verified through the two-scale transform from another dimension field in detail. The obtained fractal generalized variational structure reveals the conservation laws via the energy form in the fractal space and can be employed to study the fractal solitary wave properties.

Дополнительное образование детей Хабаровского края в социологическом измерении

This article presents the results of sociological research of directions of supplementary education for children and the assessment of their impact on the personal and career-oriented development of younger generation on the example of the Khabarovsk territory. Supplementary education for children is considered by the authors in the context of the concept of «educational space», which is interpreted as a part of society, with its own system of subject-object relations of the state and the other structures for personal and professional education of children and youth. Analysis of the main scientific approaches to the study of educational space presented in the article gives the authors a reason to use it for sociological research. Empirical results of sociological surveys obtained by the authors and domestic research centers indicate that the all-Russian trend towards increasing the diversity of educational services remains a significant role in their regional location. Based on the data of sociological surveys of parents and children of different age groups, it is shown that the design of an individual children's educational space depends on many objective conditions and subjective factors in terms of the possibilities of the territory and families. The attitudes of parents, available resources and willingness to make efforts for the personal and career-oriented development of children determine the form and content of the regional supplementary educational space to the greatest extent. The authors consider it expedient to improve the state educational policy in direction of ensuring the quality of conditions and accessibility of classes for each child and success of their personal development and career guidance choice, regardless of the place of residence in the Khabarovsk territory.

Refolding of Proteins Expressed as Inclusion Bodies in E. coli.

Microbial-based biotherapeutics that are produced in Escherichia coli (E. coli) can be generated intracellularly in the form of inclusion bodies (IBs) or in soluble active form in periplasmic space or extracellularly. Overexpression of these biotherapeutics in E. coli leads to formation of insoluble aggregates called inclusion bodies. These IBs contain misfolded and inactive form of proteins which need to be refolded to obtain a functionally active form of proteins. Here, we discuss refolding of E. coli-based recombinant human granulocyte colony-stimulating factor (GCSF), expressed as IBs, and highlight some of the key features associated with the refolding kinetic reaction.

ПЕРСПЕКТИВИ ОЦІНЮВАННЯ ТРИВИМІРНИХ ДЕФОРМАЦІЙ ЗЕМЛІ ЗА ДАНИМИ ГЛОБАЛЬНИХ НАВІГАЦІЙНИХ СУПУТНИКОВИХ СИСТЕМ

Presented in the article information is of a scientific and methodical character. Accumulation of coordinate monitoring data in networks of permanent GNSS stations made it possible to increase the efficiency of solving of many problems of moderngeodynamics. At the same time, their use made it necessary to rethink traditional theoretical approaches to solving of the problem, in particular, in terms of developing methods for evaluation of three-dimensional deformations.The analysis of the used theoretical approaches and methods for evaluation of three-dimensional deformations of the Earth in this article are presented. The insufficient degree of their correspondence to the potential information resource of GNSS data is substantiated.The method for evaluation of deformations of the Earth from the standpoint of the theory of transformations of Riemannian space imagesin the form of complex diffeomorphic manifolds is proposed. Properties of complex manifolds in the form of a tangent Euclidean space, which is parameterized by a rectangular Cartesian coordinate system, are used. This choice is justi-fied by its identity with the ITRS system, which is used to monitoring of coordinates by the GNSS method. The algorithm for constructing a functional model of deformation based on the homeomorphism of transformations is formulated. The method involves the direct use of coordinates in the ITRS system and modeling of deformations of the curvilinear topographic surfaceof the Earth in three-dimensional space. The method provides evaluation of three-dimensional deformation tensors and related invariants, which belong to the topographic surface. Working formulas for evaluation of main linear deformations, dilatation and rigid rotation of the Earth have been obtained. The method is generalized for evaluation of nonlinear deformations

Study on the spatial design of transportation linkage of elderly facilities in developed countries

Although the legal system of senior care facilities in China has been improved and new policies have been introduced, there are still problems such as single design form and unreasonable functional arrangement in the transportation space of senior care facilities. In this paper, we find the laws and regulations and typical cases of senior care facilities in Japan, Germany, France, Spain and other developed countries, and conduct an in-depth research and analysis from the perspective of the design of transportation space of senior care facilities, and come up with the design ideas of transportation space of senior care buildings in each country for the reference and understanding of colleagues.

Қазақ дүниетанымындағы кеңістік пен уақыт түсініктерінің қалыптасуы

The problem of space and time in philosophy was considered as one of the commonly important problems, regardless of what historical period, no matter what civilizational structures they entered. Space and time are base of our understanding of the world. The article identifies the problems of space and time that take a special historical and philosophical place in the content structure of the Kazakh worldview and the understanding is presented regarding the typical features through the analysis of the these categories. It also addresses the directions of the forms of space and time in the nomadic civilization and traditional Kazakh culture. The concepts of space and time in the worldview of the Kazakh people are clearly explained by various examples and the everyday use of the categories of space and time in the national vision of Kazakh people is provided. The presented article is intended to reveal the main dynamics of time and space in the worldview of the Kazakh people (time, past, world, nomadic tradition, life, etc.). The existence of special views of Kazakh thinkers, characteristic of space and time, is the essence of the research problem. Specific examples show that the Kazakh people had their own temporal and spatial dimensions and they were given a philosophical analysis. The article analyzes the features of comparison and identification in the use of the categories of space and time. The place of the categories of space and time as the basis of the nomadic life of the Kazakh people is determined. The relevance of the topic lies in the fact that the use and specificity of the categories of space and time in the Kazakh worldview are explained by various examples, and the role and significance in the development of mankind are revealed from a philosophical point of view.

Study on the Spatial Organization Mechanism and Simulated Evolution of Tibetan Buddhist Monastic Settlements on the Western Sichuan Platea

The western plateau of Sichuan Province is dotted with many Tibetan Buddhist monastic settlements, present extremely unique spatial characteristics of settlement and are an important part and unique type of human settlement system. Taking the Lharong Wuming Buddhist Institute in Seda County, Ganzi Prefecture, Sichuan Province as an object, we reveal the organizational evolution mechanism of monastic settlement space from the perspective of microscopic subjects, and accordingly establish the Tibetan Buddhist monastic settlement cellularular automata (TBTS-CA) model to simulate and predict the development trend of monastic settlement space form.

Optimization of Green Space Form Assessment in Beijing-Tianjin-Hebei Cities under “Carbon Reduction - Quality Improvement” Green Innovation

Under the background of the “two-carbon” goal, balancing the demand for land for economic development and ensuring the ability of urban green ecological carbon sink is the key issue of urban sustainable development. Based on the synergy theory, this paper uses the morphological spatial pattern analysis (MSPA) method to calculate the area ratios of seven landscape types in 13 cities within the BeijingTianjin-Hebei urban agglomeration, and forms an assessment system (factor evaluation) for green space forms of cities that are not carbon neutral, near carbon neutral and already carbon neutral based on relevant indexes, and then gives optimization suggestions: First, the larger the proportion of the area of urban construction land intersecting or contacting with natural patches and corridors, the easier it is to improve the carbon storage capacity of green space. Second, on the basis of ensuring a certain proportion of development space after, landscape types with a high degree of aggregation have a certain effect on the score improvement of the urban innovation index. Fourth on the basis of ensuring a certain proportion of development space, a reasonable ratio of green space between the core area and the fringe area is beneficial to the realization of the coordinated development mode of economy and ecology.

Existence and uniqueness theorems for pointwise-slant immersions in Sasakian space forms

<abstract><p>In this paper we derive the Existence and Uniqueness Theorems for pointwise slant immersions in Sasakian space forms which extend the Existence and Uniqueness Theorems for slant immersions in Sasakian space forms proved by Cabreizo et al in 2001.</p></abstract>

On some inequalities for metallic Riemannian space forms

The metallic Riemannian space forms are the subject of this article, specifically their slant submanifolds. Several basic inequalities have been derived for these submanifolds and particular conclusions are examined.