Briquetagem de biomassa florestal: variáveis do processo e qualidade do produto.

EVINCI. Resumo

Alteração de propriedades energéticas de briquetes de biomassa florestal em função do material e umidade.

EVINCI. Resumo

Climate change induced transformations of agricultural systems: insights from a global model

Climate change might impact crop yields considerably and anticipated transformations of agricultural systems are needed in the coming decades to sustain affordable food provision. However, decision-making on transformational shifts in agricultural systems is plagued by uncertainties concerning the nature and geography of climate change, its impacts, and adequate responses. Locking agricultural systems into inadequate transformations costly to adjust is a significant risk and this acts as an incentive to delay action. It is crucial to gain insight into how much transformation is required from agricultural systems, how robust such strategies are, and how we can defuse the associated challenge for decision-making. While implementing a definition related to large changes in resource use into a global impact assessment modelling framework, we find transformational adaptations to be required of agricultural systems in most regions by 2050s in order to cope with climate change. However, these transformations widely differ across climate change scenarios: uncertainties in large-scale development of irrigation span in all continents from 2030s on, and affect two-thirds of regions by 2050s. Meanwhile, significant but uncertain reduction of major agricultural areas affects the Northern Hemisphere's temperate latitudes, while increases to non-agricultural zones could be large but uncertain in one-third of regions. To help reducing the associated challenge for decision-making, we propose a methodology exploring which, when, where and why transformations could be required and uncertain, by means of scenario analysis

Influência da pressão na densidade e no teor de umidade de briquetes de diferentes resíduos de biomassa florestal.

Resumo

“Can You See Me?” Eye-Gazing: A Meditation Practice for Understanding

Through an autobiographical recount, this essay explores the meditation practice of eye-gazing as a way to create understanding about the self and the Other. Eye-gazing is described as a contemplative practice that individuals can use not only to be self-reflective but to sit with discomfort as a way to begin cultivating compassion and understanding for individuals. Within this essay, a definition of eye-gazing is provided alongside theoretical understandings of its implications for the PK-12 classroom space and broader sociopolitical context

Yoga for Social Justice: Developing Anti-Oppressive Tools for Change through Yoga

This paper presents the practice of yoga as both a method of pedagogy and inquiry to create transformative social justice praxis. The Sanskrit word yoga translates to yoke. The practice of yoga, rather the practice of creating a yoking or connection of body, mind, and spirit, provides an avenue for how transformation begins with the self, and then spreads into our collective engagements and anti-oppressive work. Through self-examination of body, mind, and spirit we are able to unearth the roots of oppression that exist within our being, in other words the embodiment of marginalization, oppression, and silence. I use autobiographical methodology to examine how my practice of yoga has informed not only a critical examination of the self, but a critical examination of how to disrupt the interlocking systems that continue to marginalize, oppress, and silence. I draw from different spiritual philosophies to create a more well-rounded view on how suffering can be used to traverse human connection, recognize the alternatives, and bring about balance within individuals

Radiation Tolerance of CMOS Monolithic Active Pixel Sensors with Self-Biased Pixels

CMOS Monolithic Active Pixel Sensors (MAPS) are proposed as a technology for various vertex detectors in nuclear and particle physics. We discuss the mechanisms of ionizing radiation damage on MAPS hosting the the dead time free, so-called self bias pixel. Moreover, we discuss radiation hardened sensor designs which allow operating detectors after exposing them to irradiation doses above 1 Mra

The Net Global Effects of Alternative U.S. Biofuel Mandates

One of the declared objectives of U.S. biofuel policy is the reduction of greenhouse gas (GHG) emissions from fossil fuel combustion, but many studies have questioned whether such a reduction would actually occur and, if so, how large it would be. This report describes the global market, land use, GHG emissions, and nitrogen use impacts of the U.S. Renewable Fuel Standard (RFS2) and several alternative biofuel policy designs, which differ in terms of mandate magnitude and feedstock composition, over the 2010-2030 period