Results 61 to 70 of about 2,771,501 (294)

Research on renewable energy industry technology and choice [PDF]

open access: yesE3S Web of Conferences
There are great differences in the types, development levels, and technological costs of renewable energy technologies, and they need to be classified and guided at the same time as comprehensive development.
Gai Di   +9 more
doaj   +1 more source

Inherent redundacy electric heater [PDF]

open access: yes, 1973
A cross-wound electrical heater comprising two resistance coils wound together with opposite pitches electrically connected at their crossing points, is reported.
Kernodle, B. H.
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Renewable power for lean desktops in media applications [PDF]

open access: yes, 2009
An integration of solar microgeneration to supply a low-power IT desktop, using the Power over Ethernet standards IEEE 802.3af/at as a low power distribution network avoiding transformer losses from DC generation to mains power AC and back to low-voltage
Counsell, John M.   +2 more
core  

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Small, efficient power supply for xenon lamps [PDF]

open access: yes, 1970
Device, which operates from 28 V dc, has four sections, a preregulator, a dc-to-dc converter, a current regulator, and a high voltage starter.
Goodwin, J. E.
core   +1 more source

Studying Three Phase Supply in School

open access: yes, 2009
The power distribution of nearly all major countries have accepted 3-phase distribution as a standard. With increasing power requirements of instrumentation today even a small physics laboratory requires 3-phase supply.
Amit Kumar Singhal   +3 more
core   +2 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Multiplex electric discharge gas laser system [PDF]

open access: yes, 1987
A multiple pulse electric discharge gas laser system is described in which a plurality of pulsed electric discharge gas lasers are supported in a common housing. Each laser is supplied with excitation pulses from a separate power supply.
Laudenslager, James B.   +1 more
core   +1 more source

Power in global agriculture: economics, politics, and natural resources [PDF]

open access: yes, 2012
Recent events, such as the 2008 food price crisis, have focussed global attention on the agriculture and food sectors. In particular, many countries have become increasingly concerned with the issue of ensuring the security of their food supply and one ...
Islam, MM, Renwick, A, Thomson, S
core   +1 more source

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