Viability of the biochar production from different manure wastes in the Amblés Valley (Ávila, Spain)

In the last years, intensive animal husbandry production has led to a large concentration of animals in small areas. This has resulted in the production of excessive amounts of manures with insufficient nearby land for application. One of this areas is the Amblés Valley located in the centre of Spain, near to Ávila city, with an extension of 167472 ha of which 88.9% is agricultural land. This valley has an important livestock focused on pig, cattle, chicken production which is associated with the generation of more than 200,000 t/year of manure. There are a number of environmental problems associated with these intensive agricultural systems, including N and P pollution of water bodies, methane emissions and odour pollution. These serious environmental threats are called for innovative environmental management approaches. A feasible technology for the management of manures, offering a potential to valorise these wastes, is pyrolysis, which results in the production of biochar. The objective of this work is evaluated the technical and economic feasibility of the production of biochar in Amblés Valley (Spain).

Evaluation/Optimization of reservoir operation rules for flood management using an integrated hydrologic-hydraulic framework

Se ha presentado la evaluación y optimización de las reglas de operación de un embalse para gestión de avenidas usando un entorno integrado hidrológico- hidráulico de tipo Monte Carlo. Some reservoirs play a major role in flood protection, managing the floods and reducing or delaying the peak discharges in the river downstream. However, the changing environment (natural and anthropological changes) requires the development of more elaborated strategies for reservoir operation. Three factors are relevant: 1) the natural variability of inflow hydrographs, 2) the competition for reservoir storage capacity between flood control and other uses, and 3) the existence of built-up areas on downstream river reaches. A framework for evaluation/optimization of reservoir operation rules for flood management in a changing environment is presented in this study. The study was carried out using an integrated hydrologic – hydraulic model in a Monte Carlo framework.

Debian Hamradio and Software Defined Radio : Overview of the Debian Ham blend, ham radio and software defined radio

Non peer reviewed

A Performance Evaluation of Surface Normals-Based Descriptors for Recognition of Objects using CAD-Models

This paper describes a study and analysis of surface normal-base descriptors for 3D object recognition. Specifically, we evaluate the behaviour of descriptors in the recognition process using virtual models of objects created from CAD software. Later, we test them in real scenes using synthetic objects created with a 3D printer from the virtual models. In both cases, the same virtual models are used on the matching process to find similarity. The difference between both experiments is in the type of views used in the tests. Our analysis evaluates three subjects: the effectiveness of 3D descriptors depending on the viewpoint of camera, the geometry complexity of the model and the runtime used to do the recognition process and the success rate to recognize a view of object among the models saved in the database.

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 9 (1894)

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 14 (1899)

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 5 (1890)

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 12 (1897)

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 27 (1913)

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 16 (1901)

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 26 (1912)

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 4 (1889)

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 8 (1893)

Annalen des K.K. Naturhistorischen Hofmuseums.

Bd. 9 (1894)