Results 111 to 120 of about 17,836 (241)

A dynamic nonstationary spatio-temporal model for short term prediction of precipitation

open access: yes, 2013
Precipitation is a complex physical process that varies in space and time. Predictions and interpolations at unobserved times and/or locations help to solve important problems in many areas.
Künsch, Hans R.   +2 more
core   +1 more source

Harnessing nature‐based solutions in modified tropical peatland to benefit biodiversity

open access: yesJournal of Applied Ecology, Volume 63, Issue 4, April 2026.
Our findings demonstrate that well‐designed protection–production NbS schemes in tropical peat swamps can deliver joint climate and biodiversity benefits, provided that governance safeguards core forests while improving habitat quality in production zones.
Irene M. R. Pinondang   +5 more
wiley   +1 more source

Mistimed surveys lead to underestimated migratory bird impacts from wind farms

open access: yesJournal of Applied Ecology, Volume 63, Issue 4, April 2026.
Current guidance and approaches to surveying migratory birds at windfarm developments in Australia are insufficient. Evidence‐based alignment with seasonal presence is needed to improve biodiversity assessment standards, ensuring renewable energy expansion proceeds in a way that better safeguards migratory species and supports global biodiversity and ...
Xu Shi   +7 more
wiley   +1 more source

Distance of movement in three threatened butterfly species

open access: yesEcological Entomology, Volume 51, Issue 2, Page 250-260, April 2026.
Multi‐year mark–recapture analysis using net displacement and Cormack–Jolly–Seber models shows similar daily detectability (0.17–0.22) among species, supporting robust interspecific comparisons. Dispersal kernels differ: lognormal best for Euphydryas aurinia and Parnassius apollo, exponential for Phengaris arion; P.
Markus Franzén   +3 more
wiley   +1 more source

Analysis of low probability of intercept (LPI) radar signals using cyclostationary processing

open access: yes, 2002
LPI radar is a class of radar systems possessing certain performance characteristics that make them nearly undetectable by today's digital intercept receivers. This presents a significant tactical problem in the battle space. To detect these types of radar, new digital receivers that use sophisticated signal processing techniques are required.
openaire   +2 more sources

Flight-test of the glide-slope track and flare-control laws for an automatic landing system for a powered-lift STOL airplane [PDF]

open access: yes
An automatic landing system was developed for the Augmentor Wing Jet STOL Research Airplane to establish the feasibility and examine the operating characteristics of a powered-lift STOL transport flying a steep, microwave landing system (MLS) glide slope
Hardy, G. H.   +2 more
core   +1 more source

Preliminary Candidate Advanced Avionics System (PCAAS) [PDF]

open access: yes
Specifications which define the system functional requirements, the subsystem and interface needs, and other requirements such as maintainability, modularity, and reliability are summarized.
Hon, R. H., Smyth, R. K., Teper, G. L.
core   +1 more source

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