Results 81 to 90 of about 1,736,042 (245)

Influencing Factors of Artificial Snow Particle Size under Natural Environmental Conditions

Zhileng xuebao
In this study, artificial snow is produced under natural conditions using a snowmaking machine, and the microscopic morphology of the snow crystals is obtained.
Yang Xiru, Wu Haifeng, Hao Yahui, Wang Ruixiang, Xu Rongji   +4 more
doaj  

Accounting for animal movement during aerial imaging surveys

Remote Sensing in Ecology and Conservation, EarlyView.
Animals are not stationary during aerial surveys; if their movements are related to the movement of the aerial platform, then bias can be introduced into subsequent population count estimates. We sought to establish a framework for assessing the impacts of animal movement on count error and platform bias by comparing aggregated counts and relative ...
Rowan L. Converse, Christopher D. Lippitt, Steven E. Sesnie, David R. Stewart, Matthew J. Butler, Grant M. Harris   +5 more
wiley   +1 more source

Assessment of the economic risk for the ski resorts of changes in snow cover duration

Лëд и снег, 2015
Winter tourism that is intensively developed in the Russian Federation in recent years strongly depends on the snow availability and properties in the region.
S. A. Sokratov, Yu. G. Seliverstov, A. L. Shnyparkov   +2 more
doaj   +1 more source

Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter [PDF]

, 2015
During the 2010/11 boreal winter, a distributed set of backscatter measurements was collected using a ground-based Ku-band (17.2 GHz) scatterometer system at 26 open tundra sites.
King, Joshua, Kasurak, Andrew, Watts, Tom, Kelly, Richard, Dugauy, Claude, Rutter, Nick, Gunn, Grant, Derksen, Chris   +7 more
core   +1 more source

Probabilistic estimation of reliable sensor spacing for wire break detection in prestressed concrete using acoustic emission technique

Structural Concrete, EarlyView.
Abstract The acoustic emission (AE) technique has proven to be an effective method for detecting individual wire breaks in prestressed concrete structures affected by stress corrosion cracking (SCC). However, despite its widespread application, the quantitative assessment of AE monitoring reliability and optimal sensor placement remains unresolved ...
Max Fiedler, Steffen Marx
wiley   +1 more source

Statistical properties of fresh snow roughness

, 2008
We present results from a series of experiments in which fresh snow roughness was measured by means of digital photography and analyzed using the random field approach.
C. Manes, Bartlett, S., L. Egli, Manes, Costantino, LOEWE H, EGLI L., Bartlett, S.J., Lehning, M., GUALA M, Guala, M., M. Lehning, Egli, L., Manes, C., S. Bartlett, BARTLETT S, LEHNING M, Loewe, H., Löwe, H., M. Guala, H. Löwe   +19 more
core   +1 more source

Accomplishing Ethics‐Work as a Generic Social Process

Symbolic Interaction, EarlyView.
Existing systems of university research ethics are often criticized by those in the qualitative research tradition. A common thread is that ethics cannot be fully anticipated before the research begins, as is expected by most institutional review boards.
Deana Simonetto, Antony Puddephatt
wiley   +1 more source

Optimization of methods for assessing the resistance of winter rye to snow mold in natural and artificial infection backgrounds

Аграрная наука Евро-Северо-Востока
Snow mold is an economically important and progressive disease of winter rye caused by several species of low temperature fungi (ascomycetes and basidiomycetes) and fungal-like organisms (oomycetes), with yield losses of up to 30–50 %.
M. L. Ponomareva, S. N. Ponomarev, G. S. Mannapova, S. Yu. Pavlova, I. O. Ivanova   +4 more
doaj   +1 more source

Soil erosion by snow gliding - a first quantification attempt in a subalpine area in Switzerland [PDF]

, 2014
Snow processes might be one important driver of soil erosion in Alpine grasslands and thus the unknown variable when erosion modelling is attempted.
Mabit, L., Meusburger, K., Alewell, C., Walter, A., Mueller, M. H., Leitinger, G.   +5 more
core   +1 more source

The Politics of Research Ethics: Examining Institutional Consent as an Extractivist Practice within Research in Rural Northern Communities

Symbolic Interaction, EarlyView.
University Research Ethics Boards (REBs) in Canada are intended to protect research participants, but standardized ethics procedures can be poorly suited to relational, community‐led, action‐oriented, and Indigenous research. This article examines how institutional consent practices can reproduce extractive paradigms when they are applied to research ...
Chris Sanders, Kristin Burnett, Lana Ray, Lesly Gunasekara   +3 more
wiley   +1 more source