scholarly journals The use of self-cleaning materials and study their impact on the quality of the visual appearance of large industrial cities

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Sahar Mirabi
Keyword(s):  
Construction Industry ◽  
Urban Design ◽  
Focal Point ◽  
Construction Materials ◽  
Suitable Model ◽  
Urban Architecture ◽  
Visual Appearance ◽  
Self Cleaning ◽  
Will Self

One of the capabilities of the architecture is to respond to growing and, in some cases, varied needs of users. However, architecture and construction industry, in comparison with other sciences, have been very slow and inadequate to implement this technology despite very suitable ground for improvement. At the moment, one of the most essential discussions in this field is how to achieve qualitative understanding of construction materials. Accordingly, one of the key sections of a construction which plays a significant role in optimizing performance is shell of the building. In this article, in addition to the utilization technique of self-cleaning materials in construction industry which will result in embellishment of urban design, an attempt has also been made to present a suitable model on how to utilize these materials in order to improve the visual appearance quality of megalopolises. The technology of self-cleaning surfaces in order to increase durability and reduce costs and required time for equipment maintenance has currently become the focal point in construction industry. Now providing one answer to the question of whether will self-cleaning, purifying facades change the future of urban architecture? The main panorama of this research is to find and establish a dynamic and sustainable balance in embellishment of urban design. The necessity of research in this field as well as finding the best and most practical solution seem. To achieve all this, an analytical and descriptive research has been utilized, data has been collected by various books and national and international websites.

scholarly journals Factorial Design of Concrete Production in Hot and Warm Humid Zones in South East Nigeria

2021 ◽  
pp. 106-116
Author(s):  
M. Odoanyanwu Ndubuisi ◽  
H. Ivoke Ifeanyichukwu ◽  
C. Odom Uzodimma
Keyword(s):  
Construction Industry ◽  
Construction Materials ◽  
Climatic Conditions ◽  
National Standards ◽  
Existing Building ◽  
Concrete Production ◽  
Major Variable ◽  
Production Practices ◽  
Major Factors

This study narrates the quality of concrete production as slump wet in warm and hot zones. The quality of concrete mixture is of inevitable concern to all stakeholders in the construction industry in the zones when the climatic conditions of the zones are considered. Absence of National standards, environmental and climatic conditions and other factors are the main factors that affect the quality of concrete produced in the area. The affected mix ratio is examined and all the prevailing construction/production practices are considered. All necessary measures for improving the quality of concrete produced are surveyed considering the relationships between various variables used in the mixture. Three major factors (variables) that are found to be influencing the quality of concrete in the south east, Nigeria. The absence or lack of implementing the existing building code, climatic conditions in the zones and types of construction materials available, all remain the major variable influencing the quality of present concrete production in the zones of south east, Nigeria.

scholarly journals Industrialization of housing construction as a tool for sustainable settlement and rural areas development

2020 ◽  
Vol 164 ◽  
pp. 07010
Author(s):  
Olga Popova ◽  
Polina Antufieva ◽  
Vladimir Grebenshchikov ◽  
Mariya Balmashnova
Keyword(s):  
Construction Industry ◽  
Rural Areas ◽  
Housing Stock ◽  
Construction Materials ◽  
Housing Construction ◽  
Significant Progress ◽  
Housing Problem ◽  
Arkhangelsk Region ◽  
Low Levels

The development of the construction industry, conducting construction in accordance with standard projects, and transforming the construction materials industry in hard-to-reach and sparsely populated areas will make significant progress in solving the housing problem. Industrialization of housing construction is a catalyst for strong growth of the region’s economy and the quality of life of citizens. The purpose of this study is to develop a methodology for assessing the level of industrialization of the territory’s construction complex and its development potential for increasing the volume of low-rise housing stock. Research tasks: 1) assessment of the need to develop housing construction, including low-rise housing, on a particular territory; 2) development of a methodology for calculating the level of industrialization of construction in the area under consideration to determine the possibility of developing low-rise housing construction in this area in the proposed way; 3) approbation of the method using the example of rural areas of the Arkhangelsk region. It was revealed that the districts of the Arkhangelsk region have medium and low levels of industrialization. The districts that are most in need of an increase in the rate of housing construction have been identified. Recommendations for the development of the construction industry in certain areas have been developed.

OVERVIEW OF BITUMEN BINDERS USED IN UKRAINE

2021 ◽  
Vol 2021 (23) ◽  
pp. 60-75
Author(s):  
Andrey Galkin ◽  
◽  
Yan Pyrig ◽  
Keyword(s):  
Construction Industry ◽  
Softening Point ◽  
Construction Materials ◽  
Road Construction ◽  
High Volume ◽  
Structural Type ◽  
National Standard ◽  
Quality Properties ◽  
Temperature Susceptibility

Introduction. Pavement bitumen is one of general road construction materials that are used for pavement construction. The quality of bitumen binder regulates specific technical and operational characteristics of asphalt pavements and their durability Problem Statement. Nowadays in Ukraine only one refinery plant produces pavement bitumen. The volume of its production is not enough to completely satisfy the demands of Ukrainian road construction industry. Due this a lot of binders in Ukraine are imported from other countries. In recent years the highest volumes of bitumen was imported from Republic of Belarus and Poland. In 2020 the amount of road construction works was increased, particularly with pavement repairing and new pavement constructing. It resulted in increasing in need in pavement bitumen that led not only to the high volume of import bitumen but to an expansion of the list of importing counties. Purpose. The presented study is aimed on analysis of quality of bitumen imported in Ukraine from eight countries. For these binders their features are obtained and problem of their applicability and its advisability in Ukraine road industry is considered. Materials and methods. As a material of research bitumens produced in Azerbaijan, the Republic of Belarus, Greece, Spain, Italy, Poland, Turkey and Ukraine are chosen. The standard quality properties are obtained in accordance with the actual in Ukraine standards ДСТУ 4044 and ДСТУ EN 12591. Beside this the attention is paid to the finding of fundamental properties of these binders, such as adhesion, cohesion and viscosity. Results. With the experimental data it is found that all bitumens significantly differ in their structural type. It results in differences in softening point and breaking point temperatures at the equal penetration value (this difference is in the range from 4.5 °С for the closer values to 16.5 °С for the most distinct values). This fact can influence on asphalt pavement properties and durability. Besides such a difference in a temperature susceptibility of binders their adhesion and cohesion properties differ too. Bitumen that tends to sol type of structure is characterized with higher cohesion and viscosity values. This peculiarity must be taken into account in mixing and compaction operations for the asphalts with such bitumen. The temperatures of these operations must be higher than one for bitumen close to the gel type. The low temperature susceptibility and wide plasticity interval are the advantages of bitumen that tends to gel type of structure. Conclusions. All bitumens that are imported in Ukraine must be certificated with ДСТУ 4044:2019 national standard requirements. Also they must be tested with additional methods to validate the decision on their implementation in road construction industry and to specify the implementation area. Keywords: paving bitumen, bitumen binder, penetration, softening point temperature, adhesion, cohesion, viscosity

Analysis of color Image Enhancement Using DWT, Wavelet Shrinkageand FHE Methods

2017 ◽  
Vol 7 (8) ◽  
pp. 56
Author(s):  
Ashish Dwivedi ◽  
Nirupma Tiwari
Keyword(s):  
Image Enhancement ◽  
Color Image ◽  
Human Perception ◽  
Histogram Equalization ◽  
Wavelet Shrinkage ◽  
Visual Appearance ◽  
Enhancement Method ◽  
Fuzzy Histogram ◽  
Rgb Image

Image enhancement (IE) is very important in the field where visual appearance of an image is the main. Image enhancement is the process of improving the image in such a way that the resulting or output image is more suitable than the original image for specific task. With the help of image enhancement process the quality of image can be improved to get good quality images so that they can be clear for human perception or for the further analysis done by machines.Image enhancement method enhances the quality, visual appearance, improves clarity of images, removes blurring and noise, increases contrast and reveals details. The aim of this paper is to study and determine limitations of the existing IE techniques. This paper will provide an overview of different IE techniques commonly used. We Applied DWT on original RGB image then we applied FHE (Fuzzy Histogram Equalization) after DWT we have done the wavelet shrinkage on Three bands (LH, HL, HH). After that we fuse the shrinkage image and FHE image together and we get the enhance image.

scholarly journals 31.B. Workshop: Public health and urban design: an interdisciplinary approach to promote autism friendly environments

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
◽  
Keyword(s):  
Public Health ◽  
Risk Factors ◽  
Environmental Factors ◽  
Built Environment ◽  
Urban Design ◽  
Significant Role ◽  
Prevalence Rates ◽  
Environmental Characteristics ◽  
The Relationship

Abstract Autism is a set of heterogeneous neurodevelopmental conditions, characterised by early-onset difficulties in social communication and restricted, repetitive behaviour and interests. The worldwide population prevalence is about 1% with an increasing incidence and prevalence rates. Autism affects more male than female individuals, and comorbidity is common (>70% have concurrent conditions). Determinants of these changes in incidence and prevalence rates may also be related to exposure to environmental factors and to modifications in diagnostic concepts and criteria. In spite of the uncertainty in determinants of incidence of autisms, there is evidence that environmental characteristics play a significant role both as autism risk factors and as potential obstacles that influence the capabilities of autonomously and fully “using” everyday spaces. The workshop aims to provide a framework on risk factors of autism and explore the relationship with the built environment, focusing on the quality of the everyday spaces and projecting the effects that it could have in the long term on achieving a desirable level of quality of life. The 11th Sustainable Development Goals of United Nations “Make cities inclusive, safe, resilient and sustainable” underlines the necessity of designing policies and projects acting to enhance and promote healthy cities and communities by addressing the needs of the most vulnerable groups of inhabitants. Herewith we bring together the discipline of Public Health and Urban Design to promote an interdisciplinary debate on a little explored topic investigating how the approaches adopted during childhood to promote the wellbeing of people with ASD can be related or strengthen by focusing also on built environment design intervention to pursue and reach the same objectives even during adulthood. The workshop will consist of four presentations. The first focuses on giving an overview on current knowledge of intervention for people with autism, presenting also criteria for evidence-based interventions. The second explores the relationship between autism and built environment by providing an exhaustive framework of the available research literature in order to identify a first set of spatial requirements for autism friendly cities. The third examines the impact of built environment on ASD users with the aim of developing a specific evaluation tool for healthcare spaces and best practices formulation according to the specific sensorial hypo- or hyper-activation of people with autism. Finally, the fourth reports the results of a two years Research & Development project called “GAP REDUCE” finalized at developing an Assistive Technology tool to support people with ASD, adult and high-functioning, to plan urban itineraries towards daily destinations. Key messages World's incidence of autism is about 1% with an increasing incidence whose determining rates may also be related to environmental factors and to modifications in diagnostic concepts and criteria. Environmental characteristics play a significant role also as potential obstacles that influence the capabilities of people with autism of autonomously and fully “using” everyday spaces.

scholarly journals Problematizing Olympic Nationality

AJIL Unbound ◽  
2020 ◽  
Vol 114 ◽  
pp. 374-379
Author(s):  
Peter J. Spiro
Keyword(s):  
Twentieth Century ◽  
National Identity ◽  
Focal Point ◽  
Professional Sports ◽  
Sports Teams ◽  
Olympic Athletes ◽  
Nation States ◽  
International Solidarity

One can hope that the convening of the Tokyo Olympics will be a cause for global celebration. Tokyo could prove a focal point for international solidarity, a moment of relief and release after all of humanity faced down an insidious, invisible, and largely indiscriminate attacker. Unified as we otherwise may be, athletes will still come to the Games as representatives of nation-states. That may be an unavoidable organizing principle. Less justifiable will be the requirement that athletes be nationals of the states they play for. Under the Olympic Charter and the rules of particular sporting federations, athletes are subject to a non-state nationality regime that restricts the capacity of individuals to compete for countries for whose delegations they would otherwise qualify. This regime looks to maintain the putative integrity of Olympic competition by maintaining the unity of sporting and sociological national identity. But that legacy of the twentieth century no longer works in the twenty first. Nationality and associated criteria for participant eligibility undermine the autonomy of athletes and the quality of participation. The rules can no longer guarantee any affective tie between athlete and nation, instead arbitrarily enabling some, but not all, to compete on the basis of citizenship decoupled from identity. We don't require that athletes playing for our professional sports teams hale from the cities they represent. There's no reason why we need to require more of our Olympic athletes.

scholarly journals Self-Cleaning Concrete for Landscaping Applications

2019 ◽  
Vol 289 ◽  
pp. 05004 ◽  
Author(s):  
Diana-Maria Mircea
Keyword(s):  
Landscape Architecture ◽  
Building Materials ◽  
Organic Materials ◽  
Construction Materials ◽  
Significant Risk ◽  
Natural Process ◽  
Negative Effects ◽  
Catalytic Material ◽  
Self Cleaning ◽  
Agriculture Water

Negative effects of environmental pollution pose a significant risk to agriculture, water resources and human health. This can however be reduced by selecting appropriate materials in construction and landscape architecture. It is well-known that strong sunlight or ultraviolet light decomposes many organic materials in a slow natural process. Photocatalytic substances accelerate this process and when used in concrete (which is one of the most widely used construction materials), permit the treatment of pollutants close to their source by applying a self-cleaning principle: decomposing organic materials, biological materials and pollutants into molecules like oxygen, water, carbon dioxide, nitrates, and sulphates. Catalytic material activation will start due to energy that is received from sunlight (it also can be activated using artificial lights), and self-cleaning begins when this material is activated. Beside other properties, this innovative self-cleaning concrete also keeps its colour for far longer than other traditional building materials, making it a desirable solution for landscaping applications.

scholarly journals ENVIRONMENTAL MANAGEMENT SYSTEMS AS A DRIVER FOR SUSTAINABILITY: STATE OF IMPLEMENTATION, BENEFITS AND BARRIERS IN GERMAN CONSTRUCTION COMPANIES

2017 ◽  
Vol 23 (1) ◽  
pp. 150-162 ◽  
Author(s):  
Jan-Simon SCHMIDT ◽  
Rainard OSEBOLD
Keyword(s):  
Environmental Management ◽  
Construction Industry ◽  
Construction Materials ◽  
The State ◽  
Management Systems ◽  
Environmental Management Systems ◽  
Large Measure ◽  
Construction Companies ◽  
Ecologically Sustainable ◽  
Corporate Business

The construction industry, as one of almost every economy’s major generators of environmental impact, can contribute in large measure to achieving the goals of sustainability. However, most publications in this field deal with sustainability with reference to selecting construction materials and improvements in the operating phase of buildings. When considering ecological sustainability the focus has to be extended from the finished building to the building pro­cess. Therefore the actors of the construction sector who are responsible for the production process have to be studied: the construction companies. The goal of this paper is to study the state of ecologically sustainable corporate business management in construction. The state of application of elements of environmental management systems (EMS) is used as an indicator of the current situation in German construction companies. EMS can help continuously to environmen­tally improve the operating processes of the firms. A broad survey about the extent of EMS has been conducted consid­ering the barriers and drivers. In general, a relatively low interest in EMS and a lack of knowledge is noticeable within the sector. As a result, strategic recommendations are made on how to promote environmental management to foster sustainable thinking in the German construction industry.

scholarly journals Editorial for the Special Issue on “Experiencing the City: The Relation between Urban Design and People’s Well-Being”

2021 ◽  
Vol 18 (5) ◽  
pp. 2485
Author(s):  
Minou Weijs-Perrée ◽  
Gamze Dane ◽  
Pauline van den Berg
Keyword(s):  
Quality Of Life ◽  
Urban Design ◽  
Well Being ◽  
Special Issue ◽  
The City

Urbanization brings major challenges with regard to livability and the health and quality of life of citizens [...]

The Researches on the Green Construction Model of the Steel Building System of Residence Project

2011 ◽  
Vol 52-54 ◽  
pp. 773-776
Author(s):  
Wei Chen ◽  
Li Jie Duan ◽  
Yu Chun Cai
Keyword(s):  
Construction Industry ◽  
Manufacturing Industry ◽  
Steel Structure ◽  
Suitable Model ◽  
Green Construction ◽  
Steel Building ◽  
Project Construction ◽  
Building System ◽  
Construction Model ◽  
Different Levels

The steel building system of residence project has more advantage in environment protection and project management than the traditional residence project construction. The main steel structure residence components can be manufactured in the green construction base as the manufacturing industry. The key issue to realize the green construction model of steel building system of residence project is to apply with a suitable model of green construction base. This paper introduced four types of green construction base which are different levels related with project, enterprise, industry and region to combine construction industry with manufacturing. The TOPSIS method was applied to evaluate and analyze to figure out the optimization model of green construction base in steel building system of residence project.

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