5 research outputs found
Astroclimatic Characterization of Vallecitos: A candidate site for the Cherenkov Telescope Array at San Pedro Martir
We conducted an 18 month long study of the weather conditions of the
Vallecitos, a proposed site in Mexico to harbor the northern array of the
Cherenkov Telescope Array (CTA). It is located in Sierra de San Pedro Martir
(SPM) a few kilometers away from Observatorio Astron\'omico Nacional. The study
is based on data collected by the ATMOSCOPE, a multi-sensor instrument
measuring the weather and sky conditions, which was commissioned and built by
the CTA Consortium. Additionally, we compare the weather conditions of the
optical observatory at SPM to the Vallecitos regarding temperature, humidity,
and wind distributions. It appears that the excellent conditions at the optical
observatory benefit from the presence of microclimate established in the
Vallecitos.Comment: 16 pages, 16 figures, Publication of the Astronomical Society of the
Pacific, accepte
From tension to compression: Asymmetric mechanical behaviour of trabecular bone's organic phase
Simulating residential demand response: Improving socio-technical assumptions in activity-based models of energy demand
Demand response is receiving increasing interest as a new form of flexibility within lowcarbon
power systems. Energy models are an important tool to assess the potential
capability of demand side contributions. This paper critically reviews the assumptions in
current models and introduces a new conceptual framework to better facilitate such an
assessment.
We propose three dimensions along which change could occur, namely technology,
activities and service expectations. Using this framework, the socio-technical assumptions
underpinning ‘bottom-up’ activity-based energy demand models are identified and a
number of shortcomings are discussed.
First, links between appliance usage and activities are not evidence-based. We propose
new data collection approaches to address this gap. Second, aside from thermal comfort,
service expectations, which can be an important source of flexibility, are underrepresented
and their inclusion into demand models would improve their predicative power
in this area. Finally, flexibility can be present over a range of time scales, from immediate
responses, to longer term trends. Longitudinal time use data from participants in demand
response schemes may be able to illuminate these.
The recommendations of this paper seek to enhance the current state-of-the-art in
activity-based models and to provide useful tools for the assessment of demand response