89 research outputs found
Flexible structures in river and stream training works and earth retaining works, using Maccaferri gabions and Reno mattresses
No full textSet of design manuals for the use of gabions and mattresses in river and channel training works. The four volumes focus on: - Flexible structures in river and stream training works (section 1, weirs for river training and water supply); - Flexible linings in Reno mattresses and gabions for canals and canalized water courses; - Flexible gabion structures in earth retaining works; - Flexible gabion and Reno mattress structures in river and stream training works (section 2, longitudinal structures)
Flexible gabion structures in river and stream training works: Section one Weirs for river training and water supply
No full textThe object of this brochure is to suggest methods and outline simple criteria for the design and construction of weirs in gabions and Reno Mattress. Principally it deals with smaII and medium size weirs of up to twenty metres high founded on soils whose main characteristics are limited bearing and shear strengths. On such soils the flexible gabion weirs work weIl compared to rigid structures which are Iikely to fracture if settIement takes place. It is not our intention to put forward new and original design theories, but to assist consultants and contractors who have chosen gabions in preferenee to ot her materiaIs. For a more detailed study of the subject the reader should refer to the technical publications listed in the bibliography. Officine Maccaferri S.p.A. will always be at the disposal of engineers who are interested in the use of gabions and Reno Mattress and who require assistance in the solution of particular problems.KWP-colloquiu
Maccaferri Gabions
No full textInformation on the application of Gabions in river training, earth control, marine works; culverts, environmental aspects
Inspection of gabion structures following august 1986 storm
No full textThe Manly Hydraulics Laboratory, of of the Public Works department of New South Wales, Australia, on behalf of the Coastal Branch, has carried out an inspection of gabion coastal protection structures in the Sydney area to assess their condition following the August 1986 storm. This report has been made available via Maccaferri Gabions
Hydraulic test to develop design criteria for the use of Reno mattresses
No full textThe present study was aimed at evaluating the performance of Maccaferri mattress products when used as river and canal bank and bed revetment. A hydraulic testing program was developed and undertaken to provide experimental data pertaining to the performance of reno mattresses. Test data were utilized to develop reliable design criteria for Maccaferri reno mattresses. Major tasks include: 1. To review the existing design methodologies and field application experience pertaining to gabions and mattresses. 2. To determine the roughness of revet mattresses. 3. To evaluate requirements of underlying granular filters or filter cloth layers. 4. To evaluate the stability of mattresses subjected to various flow conditions. 5. To analyze test results and develop design criteria applicable to mattress protection designs
Flexible linings in Reno mattress and gabions for canals and canalized water courses
No full textThe intention ofthis man ua I is to give basic information and to study some new criteria which has been evolved for the design of gabion and Reno mattress linings for open channels and canalized waterways. Recently, tests to full and model scales have been made by the undermentioned bodies: - Hydraulic Laboratory Engineering Research Center, Colorado State University (Fort Collins - USA) - Sogreah Ingenieurs Conseils (Grenoble - France) - Delft Hydraulics Laboratory (Netherlands) The results of the tests and the interpretation of them to formulate a new approach to design are discussed in the following pages. Officine Maccaferri S.p.A. consider that the information given will simplify the work of engineers involved in the design of gabion linings and their confidence in the material which, as is weil known, is being increasingly used throughout the world. The major problems encountered in channel design and their solutions are outlined in a number of actual examples of completed schemes. Construction techniques which will be of interest to contractors are also described. For a fuller and detailed study of the subject, the reader should refer to the publications and papers listed in the bibliography. At the same time, Officine Maccaferri S.p.A. will be pleased to give assistance in fïnding a solution to any specific problem by making available the experience it has acquired over the last century.KWP-collectio
Metagenomics: key to human gut microbiota.
No full textThe human gastrointestinal tract harbors the most complex human microbial ecosystem (intestinal microbiota). The comprehensive genome of these microbial populations (intestinal microbiome) is estimated to have a far greater genetic potential than the human genome itself. Correlations between changes in composition and activity of the gut microbiota and common disorders, such as inflammatory bowel diseases, obesity, diabetes, and atopic diseases, have been proposed, increasing the interest of the scientific community in this research field. In this perspective, a comprehensive and detailed view of the human gut microbiota, in terms of phylogenetic composition as well as genetic and metabolic potential, is essential to understand the dynamics and possible mechanisms of the cause/effect relationships between gut microbiota and pathology. Metagenomics has emerged as one of the most powerful sequence-driven approaches to study the composition and the genetic potential of this complex ecosystem, and efforts in this direction have been smoothed by the implementation of next generation sequencing platforms. Here, we highlight the potential of the newest high-throughput, culture-independent approaches for the characterization of the human gut microbiome in health and disease. Recent and promising results in this field are presented, underlining the perspectives and future research direction of human gut microbial ecology
TRANSITION 2BIO - Report on Collection of existing contents, tools and good practices
No full textThis report provides the description of the adopted methodologies and the results at month 23 of Task 1.2 - Collection of contents, tools, databases, platforms and good practices.
The resulting collection shows the available contents and materials for the awareness-raising, communication, and education activities, addressing various stakeholders in the European Bioeconomy.
The collected tools can be exploited and maximised through the other tasks of the WP1, i.e. the creation of the awareness, communication, and education toolkits (T1.3) and the Transition2BIO resources Library (T1.4). The Library will gather and deliver the tools to the public, while selected tools will be used for the production of the toolkits
Dynamic efficiency of the human intestinal microbiota
No full textThe emerging dynamic dimensions of the human intestinal microbiota (IM) are challenging the traditional definition of healthy gut microbiota, principally based on the static concepts of phylogenetic and functional core. On the other hand, recent researches are revealing that the microbiota plasticity is strategic for several aspects of our biology, addressing the different immunological and metabolic needs at various ages, and adjusting the ecosystem services in response to different lifestyle, physiological states or diets. In light of these studies, we propose to revise the traditional concept of healthy human IM, including its degree of plasticity among the fundamental requisites for providing host health. In order to make a model taking into account the relative importance of IM core functions and plasticity for the maintenance of host health, we address to Economics, where the efficiency of a productive system is measured by computing static and dynamic parameters
Formule, tabelle e diagrammi per il dimensionamento dei rivestimenti in Gabioni e Materassi Reno
No full textDesign manual for Gabions and Reno Mattresses by Macaferri under influence of wave actio
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