Results 31 to 40 of about 11,599,566 (196)
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Understanding fine‐scale surface changes is crucial for quantifying ecosystem dynamics and detecting landscape changes. Palsas, comparably small peatland elevations with an ice‐rich permafrost core, undergo natural cycles of growth and degradation. They can also serve as indicators of climate change in subarctic regions. Because they typically
Alexander Störmer +3 more
wiley +1 more source
The Role of the Topography in Gravity Gradiometer Reductions and in the Solution of the Geodetic Boundary Value Problem Using Analytical Downward Continuation [PDF]
, 1990 The topography of the earth plays an important role in solving the geodetic boundary value problem. In this report the effect of topography on gravity gradient data is considered and the effect of topography on the solution of the geodetic boundary value
Wang, Yan Ming
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Stochastic evolution as a quasiclassical limit of a boundary value problem for Schrödinger equations [PDF]
, 2002 We develop systematically a new unifying approach to the analysis of linear stochastic, quantum stochastic and even deterministic equations in Banach spaces.
Kolokoltsov, V. N. (Vasiliĭ Nikitich) +3 more
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Geodetic Boundary Value Problems III
, 1986 Veröffentlichungen des Zentralinstituts für Physik der Erde ...
openaire +9 more sources
Sliding Mode Control in Aerospace Applications: A Survey
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley +1 more source
Positive solutions of nonlinear fourth-order boundary-value problems with local and non-local boundary conditions [PDF]
, 2008 We establish new existence results for multiple positive solutions of fourth-order nonlinear equations which model deflections of an elastic beam. We consider the widely studied boundary conditions corresponding to clamped and hinged ends and many non ...
J. R. L. Webb +5 more
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Lost in Aggregation: Quantifying Measurement Error from Geographic Centroids
Economic Record, EarlyView.Due to privacy laws and regulations, microdata typically provide regional identifiers rather than exact coordinates. Researchers therefore often construct spatial variables from these aggregations, but the statistical implications depend on the research setting.
Ali Furkan Kalay, Henry Wen
wiley +1 more source
Is the rent too high? Land ownership and monopoly power
Real Estate Economics, EarlyView.Abstract Pricing power in real estate markets can reduce housing supply and redevelopment relative to the social optimum. We show how pricing power interacts with popular redevelopment subsidies and zoning regulations. Using building‐level rental income data from NYC, we find that increased concentration is correlated with increased rents.
C. Luke Watson, Oren Ziv
wiley +1 more source
The computation of the external gravity field and the geodetic boundary value problem [PDF]
, 1965 Prepared for Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force, Bedford, Massachusetts: Contract No. AF 19(628)-2771, Project No. 7600, Task No.
Moritz, Helmut, 1933-
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Trial methods for Bernoulli's free boundary problem [PDF]
, 2014 Free boundary problems deal with solving partial differential equations in a domain, a part of whose boundary is unknown – the so-called free boundary. Beside the standard boundary conditions that are needed in order to solve the partial differential ...
Mitrou, Giannoula
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