Search results for "Stain"
showing 10 items of 5524 documents
Increasing the flexural capacity of RC beams using steel angles and pre-tensioned stainless steel ribbons
2016
This article presents an experimental programme on reinforced concrete beams retrofitted with steel angles and pre-stressed stainless steel ribbons to increase their flexural strength and ductility. Two different configurations of the steel ribbon were designed, and two companion specimens for each type considered were subjected to a four-point bending test to facilitate a direct comparison in the analysis of the effectiveness of the retrofitting technique. The influence of longitudinal steel angles and transverse stainless steel ribbons is analysed, and the concrete confinement due to stainless steel ribbons examined. The strengthened beams show remarkable increments in flexural strength a…
Proposing a Novel Predictive Technique for Gully Erosion Susceptibility Mapping in Arid and Semi-arid Regions (Iran)
2019
© 2019 by the authors. Gully erosion is considered to be one of the main causes of land degradation in arid and semi-arid territories around the world. In this research, gully erosion susceptibility mapping was carried out in Semnan province (Iran) as a case study in which we tested the efficiency of the index of entropy (IoE), the Vlse Kriterijumska Optimizacija I Kompromisno Resenje (VIKOR) method, and their combination. Remote sensing and geographic information system (GIS) were used to reduce the time and costs needed for rapid assessment of gully erosion. Firstly, a gully erosion inventory map (GEIM) with 206 gully locations was obtained from various sources and randomly divided into t…
DEVELOPMENT OF A NEW SATURATED VAPOUR-ANODE, SATURATED VAPOUR-CATHODE AMTEC-LIKE DEVICE
Husk Energy Supply Systems for Sunflower Oil Mills
2020
Together with solar, wind, and hydro renewable energy sources (RES), biomass constitutes an integral part of the high-renewables electricity systems. Considerable feedstocks for electricity generation are process-based residues. Ukraine is the world leader in sunflower seed production, therefore, husk (a by-product of oil production) is a promising biofuel for combustion- based power plants. The plants consume primarily electricity and fossil fuels (natural gas or fuel oil) for steam production. Their usage affects the edible oil production cost and impacts on climate change. The above facts force us to look for alternatives. By-product (husk) utilization can reduce exhaustible energy consu…
Building renovation, sustainability and urban regeneration
2015
The paper investigates issues related to the principles of eco-sustainability and criteria of de-sign choice to be made in respect to the characteristics of the interventions. It proposes cases of recovery and re-use sustainable in Sicily, whose choices of action were made in respect of the environment and local traditions. General directives: reduction of the energy consump-tion; use of recycled and recyclable materials;improvement of the thermo/igrometric. The programming is based not only on the control of the performance, but on an idea of global quality of the operations. The correspondence between the needs and the requirements of the organism and the norms that protect the user, it’s…
Determination of Changes in the Quality of Surface Water in the River—Reservoir System
2021
Assessing the changing parameters of water quality at different points in the river–reservoir system can help prevent river pollution and implement remedial policies. It is also crucial in modeling water resources. Multivariate statistical analysis is useful for the analysis of changes in surface water quality. It helps to identify indicators that may be responsible for the eutrophication process of a reservoir. Additionally, the analysis of the water quality profile and the water quality index (WQI) is useful in assessing water pollution. These tools can support and verify the results of a multivariate statistical analysis. In this study, changes in water quality parameters of the Turawa r…
IL RETROFIT ENERGETICO. L'EDILIZIA RESIDENZIALE POST-BELLICA DI PALERMO
2015
Il patrimonio edilizio italiano è composto principalmente da costruzioni realizzate nel secondo dopoguerra, quando la speculazione economica e l'urbanizzazione hanno prodotto edifici con caratteristiche di scarsa qualità architettonica ed energetica. Agire sul rendimento energetico degli edifici esistenti, adattandoli alle caratteristiche richieste dalla normativa, a parità di condizioni di comfort, rappresenta una strategia importante per la riduzione dei consumi energetici e per la tutela dell'ambiente. Attraverso l'applicazione di tecnologie e metodologie innovative e la scelta di investimenti adeguati, il retrofit energetico può rappresentare oggi la principale opportunità di crescita i…
Life and economies in neo-Anthropocene: fruitful relationships between research, profession and local cooperation
2017
L’avvicinamento tra luoghi di produzione agricola e città, sempre più frequentemente, contribuisce alla progettazione di azioni coesive per riconfigurare il ciclo virtuoso della cattura della CO2 e della produzione di valori aggiunti “urbani”: diritti irrinunciabili, valore della vita, creatività. Questa tesi, in riferimento alla spinta progettuale ad un neo-Antropocene creativo (cfr. Ronsivalle 2016 e Carta, 2017), si può sostenere negli approcci teorici e metodologici e nella prassi dell’agricoltura urbana nelle sue varie forme. Tuttavia, solo nella costruzione di un quadro economico sostenibile, diventa possibile sviluppare un quadro ecologico utile alla riqualificazione dei sistemi urba…
The circular economy for resilience of the agricultural landscape and promotion of the sustainable agriculture and food systems
2022
The agricultural landscape is a public good to be preserved for long-term socio-economic and environmental effects. The agricultural landscape is preserved by the carrying out of agricultural activities. Through a empirical survey we examined how some young farmers in the countryside adopt conservation and resilience strategies. A common feature of the case studies examined is the adoption of photovoltaic energy production necessary for the performance of business activities. The method applied is that of the opportunity cost. The results of the research show that young farmers after graduation have returned to agriculture as they have an advantage in terms of opportunity costs compared to …
Multilevel Governance for Climate Change Adaptation in Food Supply Chains
2019
The vulnerability of food supply chains to climate change is higher compared to other industries due to its dependency on climatic conditions, temperature and water supply. As a robust response to the vulnerability of food supply chains, it is essential to find ways of linking the concepts of sustainable development, climate change adaptation and risk governance into one paradigm. The risk governance of food supply chains is conducted by and across both private and public spheres. Hence, in this chapter, we introduce a dual system of governance to match the objectives of climate change adaptation, and discuss the multiplicity and potential integration of both corporate-led private governanc…