			Home About us Contact

Restoration Process (restoration + process)

Distribution by Scientific Domains

Medical Sciences	28%
Earth and Environmental Science	28%

Selected Abstracts

Alcoa's Mining and Restoration Process in South Western Australia

RESTORATION ECOLOGY, Issue 2007
John M. Koch
Abstract This paper describes the sequence of Alcoa's bauxite mining and restoration operations in Western Australia, commencing with pre-mining surveys and geological exploration through to the preparation and extraction of the bauxite ore, the restoration process, and then monitoring. These methods have changed continually since operations commenced in 1963 as knowledge improved; however, this paper only describes the current procedures. [source]

Neural network-based image restoration using scaled residual with space-variant regularization

INTERNATIONAL JOURNAL OF IMAGING SYSTEMS AND TECHNOLOGY, Issue 6 2002
E. Salari
Abstract Image restoration is aimed to recover the original scene from its degraded version. This paper presents a new method for image restoration. In this technique, an evaluation function which combines a scaled residual with space-variant regularization is established and minimized using a Hopfield network to obtain a restored image from a noise corrupted and blurred image. Simulation results demonstrate that the proposed evaluation function leads to a more efficient restoration process which offers a fast convergence and improved restored image quality. © 2003 Wiley Periodicals, Inc. Int J Imaging Syst Technol 12, 247,253, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ima.10034 [source]

Treatment of an amelogenesis imperfecta with restorations prepared using a modified clear matrix technique

JOURNAL OF INVESTIGATIVE AND CLINICAL DENTISTRY, Issue 1 2010
Senem G. Yi, it Özer
Abstract The rehabilitation of a patient with amelogenesis imperfecta (AI) from both functional and esthetic standpoints represents a challenge. A number of treatment options have been proposed. Recently, the use of adhesive restorations has gained popularity because of the improved physical properties of these materials. This article describes a treatment with direct resin composite for the restoration of teeth affected by the hypomature type of AI. A modified clear matrix technique was used during the preparation and restoration process. The use of the technique provides clinicians with reduced chair time, and the matrix can be repeated when needed; restorations can be performed relatively quickly with a minimal post-operative finishing process. This article highlights the use of direct-bonded resin composites providing satisfactory esthetics and function in restoring AI-affected teeth. [source]

Alcoa's Mining and Restoration Process in South Western Australia

Restoration of a species-rich meadow on arable land by transferring meadow blocks

APPLIED VEGETATION SCIENCE, Issue 4 2010
Klime
Abstract Question: Does transplantation of small blocks of turfs contribute to restoration of species-rich meadows on fallow land? What is the role of vegetative spread and seedling establishment of meadow plants in the neighbourhood of the transplanted turfs? Location: Bílé Karpaty Mountains, SE Czech Republic. Methods: Twenty-five meadow blocks, 0.4 m × 0.4 m in size, were transplanted to fallow land (unfertile and dry) and species composition was monitored in the source area, in the transferred turfs and in their neighbourhood for 3 yr. Multivariate analyses were used to assess successional trends. Results: The transferred meadow blocks served as a source of diaspores for the seed-limited fallow land. Out of 80 transplanted species 17 species spread to adjacent plots within 3 yr. The frequency of plants expanding from the transferred turfs, either vegetatively or by seeds, was relatively low and from 2002 to 2004 a total of 22 species declined in the transferred turfs before expanding to the neighbourhood. Successional trends in species composition of the plots adjacent to the transferred blocks were strongly significant compared with the vegetation of the source area despite the short-term data used for the evaluation. The role of the seed bank in restoration was negligible. Conclusions: In infertile and dry environments, transplanted turfs may significantly speed up restoration, especially if natural sources of target plant seeds are not available in the neighbourhood. However, the restoration process is long-term and not all transferred plants can be expected to establish in the fallow land. [source]

CHEMICAL AND PHYSICAL CHARACTERIZATION OF STUCCOS FROM A MEXICAN COLONIAL BUILDING: EL MUSEO DEL CALENDARIO OF QUERETARO*

ARCHAEOMETRY, Issue 5 2009
MIGUEL GALVÁN-RUIZ
Restoration requires the use of appropriate characterization methods and suitable new material preparation processes permit the reproduction of the original material to be as similar as possible in order to be an appropriate application method. The combination of these factors will facilitate a good restoration process. Different stuccos were taken from El Museo del Calendario, a building located in Querétaro, Mexico which was built in the 16th century. All the stucco samples were studied using the characterization process which is proposed in this article. The characterization method consisted of the use of analytical techniques, such as X-ray diffraction, Fourier transform infrared and scanning electron microscopy. This characterization method made reproduction of the original material possible. The new material combined with new application techniques developed in situ will result in a high-quality restoration process. [source]

Integration of arbuscular mycorrhiza inoculation in hydroseeding technology: effects on plant growth and inter-species competition

LAND DEGRADATION AND DEVELOPMENT, Issue 6 2007
V. Estaún
Abstract Hydroseeding is a technique increasingly used to establish vegetation on large degraded areas, such as large-scale road construction sites and quarries. Native grasses and legume species are used on rehabilitation and restoration projects as a first step in the recovery of such places, prior to the establishment of native forbs and shrubs that occurs at a slower pace. The effect of mycorrhizal inoculation on the development of nine species of grasses and legumes that can be potentially used in restoration processes in the Mediterranean area was studied, in microcosm experiments under greenhouse conditions. The effect of adding arbuscular mycorrhizal (AM) inoculum to a hydroseeding mixture was also investigated in greenhouse and in field conditions. In the hydroseeding experiments the mycorrhizal inoculum was added to the seed slurry in a jet agitated hydroseeding machine and sprayed to the soil surface with a pressurised spray in a one-step application. The study shows that Glomus intraradices Schenk & Smith BEG72 is able to establish the symbiosis when applied at sowing while Glomus mosseae (Nicol. & Gerd.) Gerdemann & Trappe BEG116 is not. It also confirms that legumes are more highly mycotrophic than grasses. The results of the hydroseeding experiments demonstrate the establishment of the symbiosis using this technology, both in the greenhouse and in the field. Mycorrhizal inoculation improved above ground plant growth and increased the legumes/grasses ratio. Copyright © 2007 John Wiley & Sons, Ltd. [source]