Search results for "solid"
showing 10 items of 3575 documents
Detailed internal characterisation of two Finnish landfills by waste sampling
2006
The aim of this study was to characterise the internal structure and composition of landfilled waste at two Finnish landfills to provide information for active and post-landfill operations. The two sites, Ammässuo and Kujala, have been in operation for 17 and 48 years, respectively. Waste was sampled (total 68 samples) and analysed for total solids (TS), volatile solids (VS), total Kjeldahl nitrogen (TKN), biological methane potential (BMP) and leaching of organic material (determined as chemical oxygen demand, COD) and ammonium nitrogen (NH(4)-N). The results showed high vertical and horizontal variability, which indicated that both the waste composition and state of degradation varied gre…
Solid state NMR investigation of the roman Acqualadroni rostrum: tenth year assessment of the consolidation treatment of the wooden part
2020
Abstract: This work follows a previous one dealing with the state of conservation study of the wooden part of the roman Acqualadroni rostrum soon after its finding in the seabed of Acqualadroni (Messina, Italy). The archaeological survey and recovery were particularly relevant since this artefact is one of the two rostrums, nowadays known,found together with its wooden part. Following the recovery, it was consolidated by immersion in a melamine-formaldehyde resin (Kauramin) aqueous solution for eight months at the “Centro di Restauro del Legno Bagnato” (Pisa, Italy). The present investigation is aimed to determine at microscopic scale the wood state of conservation and to highlight interact…
Composizione per uso nella finitura, conservazione, restauro di manufatti
2017
L’invenzione è relativa ad una composizione per il consolidamento e la conservazione di fibre tessili basata sull’impiego di un nano materiale in associazione con un agente di supporto. Il nano materiale è la nano fibroina e il materiale di supporto è preferenzialmente il chitosano, ma si possono impiegare altri materiali di analoghe prestazioni. La composizione trova applicazione nell’ambito della conservazione e restauro di materiali tessili, in quanto permette la riparazione di fibre e tessuti danneggiati, ripristinando le proprietà meccaniche, e la protezione da processi foto-ossidativi dei manufatti tessili in generale. Ulteriore campo di applicazione è quello del finissaggio di fibre …
Evaluating the protecting effects of two consolidants applied on Pietra di Lecce limestone: A neutronographic study
2020
Abstract In this work a combined laboratory-based and neutronographic investigation was carried out on a type of limestone, known as Pietra di Lecce stone, widely used in Italian Baroque as construction material. The limestone was treated with two different commercially-available coatings, namely nanosilica and nanolime, and artificially weathered by salt crystallization and temperature/relative humidity jumps. The aim was to provide an experimental evidence of the protective and consolidating effectiveness of the two treatments by looking at the water absorption process occurring inside the pore network of the analyzed stones. The analysis of the wetting front position revealed significant…
Business Sectors Involved in Social Entrepreneurship
2021
The present chapter offers detailed insights about the characteristics at a microeconomic level of four practical examples of social ventures. After providing a robust theoretical framework about the motivations, challenges and aspirations of social entrepreneurs, it is time to put into practice these conceptions through the lens of real social ventures. The literature encourages the use of case studies to connect the theory groundwork, developed in the academy, to real life. As for this call to study, the present chapter thoroughly covers the ideation and consolidation stages of the selected social ventures, which sheds light for inspiration on a context where social entrepreneurship is in…
How Terrorism Changed the Ways of Interpreting Hospitality
2017
The consolidation of Thana-Capitalism doubtless affected the tourism industry, but also changed the ways in which the Other is conceived. Needless to say, anthropology should play a leading role in providing new theories to understand ‘cosmopolitanism’, and the position of this global dangerous Other in Europe. Discussing and engaging directly with Derrida as well as other scholars, this chapter focuses on how hospitality is dying. The end of hospitality represents a serious challenge of Europe simply because it was ‘the alma matter’ of its rationality and social trust. At times, terrorism targets ‘the exemplary centre of consumption’ to extortionate the developed nation-states, the surveil…
Co-Parenting: A Model of Value Creation in the Multinational Network
2017
We analyze a novel way to configure and manage multinational networks and propose a model of "co-parenting", characterized by the sharing of parenting roles and distribution of responsibilities between two units. We develop our argument around the notion of the springboard subsidiary, which has an extra-regional geographic mandate of a more strategic nature. Such extra-regional headquarters help parent firms overcome the liability of inter-regional foreignness. Based upon qualitative data, our model revolves around three stages: establishment, consolidation and maturity, each of which reflects distinct roles and knowledge flows among the three actors involved: HQ, springboard subsidiary and…
Economic effects of the consolidation of water utilities in Japan
2014
Water utilities are affected by economies of scale. However, in Japan most water utilities are small-scale water services. Therefore, they face enormous difficulties in terms of financial and personnel resources. To take advantage of economies of scale, the consolidation of water utilities has been promoted since 1965 by Japanese water authorities. The measure has been successful to some extent; nevertheless, consolidation has not progressed in recent years as was expected. This paper identifies the main barriers that hinder the consolidation of water utilities in Japan and describes the new promotion plan for the consolidation of water utilities developed by the Japan Water Works Associati…
Soil slope consolidation processes induced by drainage galleries with drainholes
2004
One dimensional consolidation of Opalinus Clay from shallow depth
2017
First experimental results on Opalinus Clay from shallow depth (< 30 m depth) are presented and compared to results on cores from Mont Terri Underground Rock Laboratory (~ 300 m depth). Samples were tested in one dimensional condition using an advanced experimental technique. The samples from the two sites show similar properties in terms of geotechnical characterization and one dimensional compressibility/swelling indexes, despite the different source depths.