Results 61 to 70 of about 864,740 (268)
High Voltage, EarlyView.ABSTRACT This study explores exciting state species and reaction pathways in positive leaders to better understand the breakdown mechanisms of long air gap discharges and natural lightning. Emission spectra from an unstable positive leader in a 1 m rod‐plate air gap under switching impulse voltages were observed, spanning 300–800 nm.
Hengxin He +6 more
wiley +1 more source
Certification of lightning protection for a full-authority digital engine control [PDF]
FADEC systems present many challenges to the lightning protection engineer. Verification of the protection-design adequacy for certification purposes presents additional challenges.
Dargi, M., Rupke, E., Wiles, K.
core +1 more source
NASA Tech Briefs Index, 1977, volume 2, numbers 1-4 [PDF]
Announcements of new technology derived from the research and development activities of NASA are presented. Abstracts, and indexes for subject, personal author, originating center, and Tech Brief number are presented for ...
core +1 more source
Smartphone ophthalmoscope as a tool in teaching direct ophthalmoscopy: a crossover randomized controlled trial. [PDF]
Med Educ Online, 2023 Wang H +4 more
europepmc +1 more source
Bushfire management, prescribed burning, and a right to fire?
Geographical Research, EarlyView.Bushfire control is a public policy priority in an era of climate change. Prescribed burning is one management solution. Prescribed burning policies prioritise human lives and avoidance of property losses. However, some species require fire to survive. We find the ‘right to fire’ is not prioritised in prescribed burning policy.
Josephine Gillespie, Josephine Lange
wiley +1 more source
Circuit protection devices for transient suppression [PDF]
The Electromer Corporation has developed a series of transient voltage suppression components based on a patented, specially formulated PolyClamp (trademark) material.
Childers, Richard
core +1 more source
Inappropriate subcutaneous implantable cardioverter defibrillator shock due to incomplete sealing of the seal plug: a case report. [PDF]
Eur Heart J Case Rep, 2022 Ajimi T, Nozoe M, Suematsu N, Kubota T.
europepmc +1 more source
Annals of Applied Biology, EarlyView.We investigated the role of vision in host‐seeking behaviour by Philaenus spumarius, the main European vector of Xylella fastidiosa, through an integrated anatomical, optical, physiological, and behavioural study. Our data highlight that the spittlebug uses visual cues, including polarized light, which may aid in detecting the polarized reflections ...
Domen Lazar +4 more
wiley +1 more source
S-band antenna phased array communications system [PDF]
The development of an S-band antenna phased array for spacecraft to spacecraft communication is discussed. The system requirements, antenna array subsystem design, and hardware implementation are examined.
Chapman, J. E. +2 more
core +1 more source