Results 81 to 90 of about 23,973 (239)

Proposta de rede de interconexão WDM com controle TDM Proposal of WDM interconnection network with TDM control

open access: yesActa Scientiarum: Technology, 1999
Este artigo apresenta uma proposta de rede de interconexão WDM com controle TDM e discute os princípios da tecnologia WDM. O artigo também classifica as redes de interconexão WDM e discute as arquiteturas de redes de interconexão e os protocolos de ...
João Angelo Martini
doaj   +2 more sources

Seeing herbaria in a new light: leaf reflectance spectroscopy unlocks trait and classification modeling in plant biodiversity collections

open access: yesNew Phytologist, EarlyView.
Summary Reflectance spectroscopy is a rapid method for estimating traits and discriminating species. Spectral libraries from herbarium specimens represent an untapped resource for generating broad phenomic datasets across space, time, and taxa. We conducted a proof‐of‐concept study using trait data and spectra from herbarium specimens up to 179 yr old,
Dawson M. White   +6 more
wiley   +1 more source

WDM Network and Multicasting Protocol Strategies

open access: yesThe Scientific World Journal, 2014
Optical technology gains extensive attention and ever increasing improvement because of the huge amount of network traffic caused by the growing number of internet users and their rising demands.
Pinar Kirci, Abdul Halim Zaim
doaj   +1 more source

A 103.12-Gb/s WDM PAM4 VCSEL-Based Transmission With Light Injection and Optoelectronic Feedback Techniques

open access: yesIEEE Photonics Journal, 2017
A 103.12-Gb/s wavelength-division-multiplexing (WDM) four-level pulse amplitude modulation (PAM4) transmission based on 850-nm and 880-nm vertical-cavity surface-emitting lasers (VCSELs) with light injection and optoelectronic feedback techniques ...
Hai-Han Lu   +7 more
doaj   +1 more source

Rapid dehydration drives a nondiffusional drop in C3 photosynthesis that aligns with phosphate limitation

open access: yesNew Phytologist, EarlyView.
Schematic representation of the causal sequence through which rapid water loss imposes diffusive and nondiffusive restrictions on carbon assimilation. Summary Drought is an abnormally prolonged water deficit posing major challenges to plants. Stomatal closure has long been considered the primary factor limiting photosynthesis during the early stages of
Chandra Bellasio   +4 more
wiley   +1 more source

Thank Goodness they got all the Dragons: Wildlife Damage Management Through the Ages

open access: yesHuman-Wildlife Interactions, 2017
Whenever the needs both of humans and wildlife overlap, there is a potential for wildlife damage to occur. Wildlife damage has been an issue throughout human history.
Maureen G. Frank, Michael R. Conover
doaj   +1 more source

Crosstalk in WDM optical networks [PDF]

open access: yes, 1998
The impact of linear and non linear crosstalk on the transmission performances of multi-wavelength optical transport networks is analysed. A performance evaluation of some relevant geographical networks is also reported.
M. Avattaneo   +2 more
openaire   +1 more source

Aboveground and Belowground Insect Herbivory Changes Maize‐Wireworm Interactions via Root Volatile Cues

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT The rhizosphere harbours critical plant‐herbivore interactions often mediated by small lipophilic molecules (SLMs). Despite the agricultural importance of many soil‐dwelling insects, surprisingly little is known about chemically mediated belowground crop‐pest interactions. Root and shoot herbivores can influence these interactions by modifying
Diego M. Magalhães   +8 more
wiley   +1 more source

Optical signal processing via two-photon absorption in a semiconductor microcavity for the next generation of high-speed optical communications network [PDF]

open access: yes, 2006
Due to the introduction of new broadband services, individual line data rates are expected to exceed 100 Gb/s in the near future. To operate at these high speeds, new optical signal processing techniques will have to be developed.
Guo, Wei Hua   +17 more
core   +1 more source

Beyond barriers: fish assemblage recovery following dam removal on the Cuyahoga River, a Lake Erie tributary

open access: yesRestoration Ecology, EarlyView.
Dam removals are increasing globally, yet ecological outcomes vary widely because biological recovery depends on post‐removal connectivity and access to source populations. We evaluated how multiple dam removals and remaining fragmentation influenced fish assemblage recovery in the Cuyahoga River (OH, United States), a historically polluted Great Lakes
Matthew R. Acre   +14 more
wiley   +1 more source

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