scholarly journals A Novel Idea for Improving the Efficiency of Green Walls in Urban Environment (an Innovative Design and Technique)

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3524
Author(s):  
Behrouz Pirouz ◽  
Michele Turco ◽  
Stefania Anna Palermo
Keyword(s):  
Urban Environment ◽  
Low Impact Development ◽  
Life Quality ◽  
Noise Pollution ◽  
Water Source ◽  
Water Harvesting ◽  
Atmospheric Water ◽  
Combined System ◽  
Study Results ◽  
Green Walls

The advantages of low-impact development approaches, such as green walls in an urban environment, are numerous. These systems can be applied for managing stormwater, saving energy consumption, decreasing noise pollution, improving runoff quality, improving life quality, and so forth. Besides, atmospheric water harvesting methods are considered a nonconventional water source. There are many studies about the analysis and advantages of green walls and atmospheric water harvesting conducted separately. However, the use of a combined system that uses fog harvesting in the irrigation of green walls has received less attention in previous studies, and therefore in this research, the feasibility of a novel green wall platform was investigated. At first, the potential of using green walls and atmospheric water harvesting in different climates was analyzed. Then a new combined system was proposed and explained. The study results determined that atmospheric water harvesting can be applied as a source of irrigation for green facilities, particularly in the dry season and in periods with lower precipitation. In the Mediterranean climate, summer fog harvesting yields 1.4–4.6 L/m2/day, and the water consumption of green walls is about 4–8 L/day/m2. This can improve one issue of green walls in an urban environment, which is irrigation in summer. Furthermore, the novel system would protect plants from severe conditions, improve buildings’ thermal behavior by decreasing direct sunlight, and increase conventional green walls’ efficiency and advantages.

INTERFACES BETWEEN ATMOSPHERIC WATER HARVESTING AND SOLAR ENERGY: EVIDENCES FROM A BIBLIOMETRIC STUDY

2021 ◽  
Author(s):  
Ana Carolina Lamas da Silva ◽  
Elias Rocha Gonçalves Junior ◽  
Virgínia Siqueira Gonçalves
Keyword(s):  
Solar Energy ◽  
Bibliometric Study ◽  
Water Harvesting ◽  
Atmospheric Water

scholarly journals Exploiting radiative cooling for uninterrupted 24-hour water harvesting from the atmosphere

2021 ◽  
Vol 7 (26) ◽  
pp. eabf3978
Author(s):  
Iwan Haechler ◽  
Hyunchul Park ◽  
Gabriel Schnoering ◽  
Tobias Gulich ◽  
Mathieu Rohner ◽  
...  
Keyword(s):  
Radiative Heat ◽  
Outer Space ◽  
Continuous Production ◽  
Solar Irradiation ◽  
Cooling Power ◽  
Water Harvesting ◽  
Atmospheric Water ◽  
Promising Alternative ◽  
Mass Fluxes ◽  
Power Enhancement

Atmospheric water vapor is ubiquitous and represents a promising alternative to address global clean water scarcity. Sustainably harvesting this resource requires energy neutrality, continuous production, and facility of use. However, fully passive and uninterrupted 24-hour atmospheric water harvesting remains a challenge. Here, we demonstrate a rationally designed system that synergistically combines radiative shielding and cooling—dissipating the latent heat of condensation radiatively to outer space—with a fully passive superhydrophobic condensate harvester, working with a coalescence-induced water removal mechanism. A rationally designed shield, accounting for the atmospheric radiative heat, facilitates daytime atmospheric water harvesting under solar irradiation at realistic levels of relative humidity. The remarkable cooling power enhancement enables dew mass fluxes up to 50 g m−2 hour−1, close to the ultimate capabilities of such systems. Our results demonstrate that the yield of related technologies can be at least doubled, while cooling and collection remain passive, thereby substantially advancing the state of the art.

Examining the quality of work life: empirical testing indicators in the public organisation

2021 ◽  
Vol 1 (2) ◽  
pp. 99-111
Author(s):  
Mohammad Reza Zahedy ◽  
◽  
Seyyed Asghar Jafari ◽  
Majid Ramezan ◽  
◽  
...  
Keyword(s):  
Life Quality ◽  
Work Life ◽  
Quality Of Work Life ◽  
Theoretical Research ◽  
Human Resource Managers ◽  
Quality Of Work ◽  
Organisational Effectiveness ◽  
Study Results ◽  
Public Organisations

Purpose: The present study aimed to identify employees’ quality of work life indicators in public organisations and provide necessary context to improve system accountability and employees’ needs in organisations. Research methodology: To identify quality of work life indicators, authors studied theoretical research basics entirely and by considering elites’ ideas, identified main indicators by a descriptive – survey technique. Result: Based on research findings, 15 constituents were identified as work life quality indicators. Research results indicate undesired quality of work life among employees at public organisations. Of identified constituents, Safe and healthy working conditions and organisational conflict are the most important and job satisfaction and Pay/benefits are the lowest important factors. Limitations: The results only extend the understanding of the role of quality of work life in organisational effectiveness and have implications for human resource managers that may not be applicable for other positions. Contribution: The study results help organisations identify the elements that affect the QWL and help them plan to increase organisational effectiveness by increasing employee satisfaction and motivation.

scholarly journals The Use of Artificial Intelligence as a Tool Supporting Sustainable Development Local Policy

2019 ◽  
Vol 11 (15) ◽  
pp. 4199 ◽  
Author(s):  
Maria Mrówczyńska ◽  
Małgorzata Sztubecka ◽  
Marta Skiba ◽  
Anna Bazan-Krzywoszańska ◽  
Przemysław Bejga
Keyword(s):  
Sustainable Development ◽  
Noise Pollution ◽  
Support Vector ◽  
Local Policy ◽  
Noise Levels ◽  
Land Utilization ◽  
Health Resort ◽  
Buffer Zones ◽  
Optimal Separation ◽  
Study Results

This paper addresses the problem of noise in spa protection areas. Its aim is to determine the delimitation of the areas that exceed a permissible noise level around the sanatorium on the example of a health resort in Inowrocław. The determination of the exceedance of permissible noise levels allows us to develop directly effective local policy tools to be included in planning documents. In order to reduce noise infiltration, it is important to define environmental priorities. Taking into account their impact on the health of users in the protection area, environmental priorities enable us to introduce additional elements to street architecture. In order to properly manage space, in accordance with the idea of sustainable development, zones of environmental sensitivity—and their socio-environmental vulnerability—have been designated for assessing damage (exceeding permissible noise in health facilities) and defining methods of building resilience (proper management). This has provided the basis for a natural balance optimized for the people living in these areas. To achieve the goal above, non-linear support vector machine (SVM) networks were used. This technique allows us to classify the linearly inseparable data and to determine the optimal separation margin. The boundaries of the areas which exceeded permissible noise levels (separation margin) were estimated on the basis of noise pollution maps, created by means of the SVM technique. Thus, the study results in establishing buffer zones where it is possible to use varied land utilization in terms of form and function, as described in the planning documents. Such an activity would limit the spread of noise.

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