Results 71 to 80 of about 214,207 (250)

Optimisation of DSF and SOA based phase conjugators by incorporating noise-suppressing fibre gratings

open access: yes, 1997
We compare the performance of dispersion-shifted-fibre (DSF) and semiconductor-optical-amplifier (SOA) based phase conjugators for a 10 Gb/s non-return-to-zero system with respect to conversion efficiency, noise figure and distortion.
Cole, M.J.   +4 more
core   +1 more source

Surface Engineering of Ti3C2Tx MXenes via Silanol Functionalization for Improved Electrochemical Performance

open access: yesSmall, EarlyView.
This study explores the covalent functionalization of Ti3C2Tx using 5,5′‐bis(triisopropoxysilyl)‐2,2′‐bipyridine in different solvents, revealing that only m‐xylene enables effective covalent bonding, ensuring structural stability and preventing layer swelling.
Abelardo Sánchez‐Oliva   +11 more
wiley   +1 more source

Genome skimming yields the complete mitogenome of Chromodoris annae (Mollusca: Chromodorididae)

open access: yesMitochondrial DNA. Part B. Resources, 2017
In this study, the complete mitogenome sequence of sea slug, Chromodoris annae (Mollusca: Chromodorididae), has been decoded for the first time by genome skimming method. The overall base composition of C. annae mitogenome is 30.6% for A, 14.5% for C, 17.
Geng-Ming Lin   +3 more
doaj   +1 more source

Reconstructing Old Chinese *‐ts Using Han‐Time Material

open access: yesTransactions of the Philological Society, EarlyView.
Abstract Baxter & Sagart (2014b) reconstruct *‐Vt‐s on the basis of Middle Chinese reflexes in ‐jH (from some OC *‐s) coupled with either etymological or graphic connections to words in Middle Chinese ‐t. This approach, while perfectly sound, can suffer from lack of etymological or graphic data, leading to missed reconstructions. Since Old Chinese *‐ts
Julien Baley
wiley   +1 more source

Study on Key Problems and Countermeasures of Sea Parcel Definition of Offshore Oil and Gas Development Projects

open access: yesHaiyang Kaifa yu guanli, 2022
This paper gave a brief pectination to the sea parcel boundary definition of offshore oil and gas projects, and induced the main problems such as lacks of normalized regularization of the outer edge of oil platform, clear demands of sea area use register
Yanrong ZHOU   +4 more
doaj  

Writing Against the Machine: Computational Authorship and Historical Writing

open access: yesHistory, EarlyView.
Abstract Historians generate knowledge through the labour of composition – through the friction between interpretation and evidence that makes claims open to scrutiny and challenge. This essay argues that when composition is bypassed, that structure disappears. Generative AI raises this issue in urgent fashion.
CHRISTOPHER GERTEIS
wiley   +1 more source

Secondary organic aerosol (SOA) formation from reaction of isoprene with nitrate radicals (NO_3) [PDF]

open access: yes, 2008
Secondary organic aerosol (SOA) formation from the reaction of isoprene with nitrate radicals (NO3) is investigated in the Caltech indoor chambers.
Chan, A. W. H.   +10 more
core   +1 more source

THE VIOLENCE OF FULL COST RECOVERY: Financing Water Infrastructure, and the History and Future of Perpetual Crisis in Mombasa

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Foregrounding the role of finance, this article examines the historical production and future trajectory of the urban water crisis in Mombasa. Drawing on archival research and contemporary fieldwork, it traces how principles of full cost recovery—institutionalized during the colonial period and later reworked through postcolonial ...
Joe Williams
wiley   +1 more source

Remote Sensing Investigation and Analysis of Coastal Salt Marshes in Guangdong and Guangxi

open access: yesHaiyang Kaifa yu guanli, 2023
Coastal salt marshes, as an important wetland type, have great social, economic and ecological values. This study surveyed and analyzed the distribution of coastal salt marshes in Guangdong Province and Guangxi Zhuang Autonomous Region, based on multi ...
Di DONG   +12 more
doaj  

Kinetic modeling of Secondary Organic Aerosol formation: effects of particle- and gas-phase reactions of semivolatile products [PDF]

open access: yes, 2007
The distinguishing mechanism of formation of secondary organic aerosol (SOA) is the partitioning of semivolatile hydrocarbon oxidation products between the gas and aerosol phases.
Chan, A. W. H.   +3 more
core   +4 more sources

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