Failure analysis of destructive coils

The failure of the destructive pulsed power coils has been investigated. The destructive coil is the key element of the laboratory system which generates half-period abrupt magnetic field pulses with the amplitudes up to 45 T. The transient coupled non-linear magneto-mechanical model has been applied for finite element simulations. The mechanical behavior and operation threshold of the coil have been examined. It has been found that operation threshold of the coil with relatively thin cylindrical reinforcement could be characterized by the opening of the plastic hinge and estimated numerically. Good agreement with experimental results has been observe

Las incrustaciones biológicas del puerto de Mar del Plata (Argentina): periodo 1976/77

Cuando se iniciaron en 1964 las investigaciones sobre las comunidades incrustantes de las costas argentinas, se tomó como principal área de estudios al puerto de Mar del Plata. Ello respondía básicamente a la importancia del mismo como puerto pesquero, comercial y táctico, como así también su proximidad con los institutos vinculados con los diversos aspectos de las investigaciones proyectadas. Los estudios realizados durante el mencionado período seguramente convierten al puerto de Mar del Plata en el mejor conocido de toda Latinoamérica en cuanto a la dinámica de sus comunidades incrustantes. Las investigaciones realizadas hasta el presente han comprendido tanto aspectos ecológicos generales de la comunidad como también estudios particulares sobre organismos de especial interés desde el punto de vista aplicado. Estos estudios se llevaron a cabo por períodos anuales, empleando para ello sustratos artificiales sobre balsas experimentales y complementados en muchos casos con experiencias de laboratorio, observaciones de sustratos naturales, etc. El presente trabajo constituye el resultado de una nueva experiencia anual (1976/77) mediante el empleo de balsa experimental que complementa el panorama obtenido en años previos sobre el conjunto de la comunidad incrustante local. El mismo constituye el último ensayo de tipo general sobre la comunidad a realizarse en la zona, ya que se considera cubierto el panorama básico local. Los esfuerzos futuros a desarrollar en este puerto se limitarán, en lo que hace a los aspectos biológicos, a investigaciones particulares sobre especies incrustantes de alta resistencia tóxica. La tarea realizada inicialmente en el puerto de Mar del Plata ha sido proseguida en otras áreas portuarias de Argentina, con la finalidad de conocer las características de este problema en los principales puertos de nuestra extensa costa marítima

Failure analysis of destructive coils

The failure of the destructive pulsed power coils has been investigated. The destructive coil is the key element of the laboratory system which generates half-period abrupt magnetic field pulses with the amplitudes up to 45 T. The transient coupled non-linear magneto-mechanical model has been applied for finite element simulations. The mechanical behavior and operation threshold of the coil have been examined. It has been found that operation threshold of the coil with relatively thin cylindrical reinforcement could be characterized by the opening of the plastic hinge and estimated numerically. Good agreement with experimental results has been observe

Failure analysis of destructive coils

The failure of the destructive pulsed power coils has been investigated. The destructive coil is the key element of the laboratory system which generates half-period abrupt magnetic field pulses with the amplitudes up to 45 T. The transient coupled non-linear magneto-mechanical model has been applied for finite element simulations. The mechanical behavior and operation threshold of the coil have been examined. It has been found that operation threshold of the coil with relatively thin cylindrical reinforcement could be characterized by the opening of the plastic hinge and estimated numerically. Good agreement with experimental results has been observe

New Particles Working Group Report of the Snowmass 2013 Community Summer Study

This report summarizes the work of the Energy Frontier New Physics working group of the 2013 Community Summer Study (Snowmass)

ISO 26000 in Corporate Sustainability Practices: A Case Study of the Forest and Energy Companies in Bioeconomy

Peer reviewe

Sustainable forest biomass: a review of current residue harvesting guidelines

http://blogs.biomedcentral.com/on-physicalsciences/2021/04/15/forest-bioenergy-sustainable/Forest biomass harvesting guidelines help ensure the ecological sustainability of forest residue harvesting for bioenergy and bioproducts, and hence contribute to social license for a growing bioeconomy. Guidelines, typically voluntary, provide a means to achieve outcomes often required by legislation, and must address needs related to local or regional context, jurisdictional compatibility with regulations, issues of temporal and spatial scale, and incorporation of appropriate scientific information. Given this complexity, comprehensive reviews of existing guidelines can aid in development of new guidelines or revision of existing ones. We reviewed 32 guidelines covering 43 jurisdictions in the USA, Canada, Europe and East Asia to expand upon information evaluated and recommendations provided in previous guideline reviews, and compiled a searchable spreadsheet of direct quotations from documents as a foundation for our review. Guidelines were considered in the context of sustainable forest management (SFM), focusing on guideline scope and objectives, environmental sustainability concerns (soils, site productivity, biodiversity, water and carbon) and social concerns (visual aesthetics, recreation, and preservation of cultural, historical and archaeological sites). We discuss the role of guidelines within the context of other governance mechanisms such as SFM policies, trade regulations and non-state market-driven (NSMD) standards, including certification systems. The review provides a comprehensive resource for those developing guidelines, or defining sustainability standards for market access or compliance with public regulations, and/or concerned about the sustainability of forest biomass harvesting. We recommend that those developing or updating guidelines consider (i) the importance of well-defined and understood terminology, consistent where possible with guidelines in other jurisdictions or regions; (ii) guidance based on locally relevant research, and periodically updated to incorporate current knowledge and operational experience; (iii) use of indicators of sensitive soils, sites, and stands which are relevant to ecological processes and can be applied operationally; and (iv) incorporation of climate impacts, long-term soil carbon storage, and general carbon balance considerations when defining sustainable forest biomass availability. Successful implementation of guidelines depends both on the relevance of the information and on the process used to develop and communicate it; hence, appropriate stakeholders should be involved early in guideline development.Peer reviewe

Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of sqrt(s) = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of K_s and Lambda particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncertainty for single charged and neutral particles to jets. The response uncertainty is 2-5% for central isolated hadrons and 1-3% for the final calorimeter jet energy scale.Comment: 24 pages plus author list (36 pages total), 23 figures, 1 table, submitted to European Physical Journal