Results 31 to 40 of about 5,609,446 (239)

Chemiluminescent Tags for Tracking Insect Movement in Darkness: Application to Moth Photo-Orientation [PDF]

, 2017
The flight tracks of Manduca sexta (Lepidoptera: Sphingidae) flying toward a 5 watt incandescent light bulb were recorded under low light conditions with the aid of a camera-mounted photomultiplier and a glowing marker technique.
Gewax, Lawrence J, Keller, James E, Miller, James R, Spencer, Joseph L   +3 more
core   +2 more sources

A comparison of an electron diffraction and an X-ray diffraction experiment from a single protein microcrystal lamella [PDF]

Structural Dynamics
X-ray diffraction (XRD) of microcrystals is signal-to-noise limited by the inherently weak diffraction. As such, Electron diffraction (ED) is increasingly used to measure diffraction data from submicron crystals, or those deemed too small for XRD due the
Adam D Crawshaw, David Owen, Miss Melissa R Whyte-Fink, Anna J Warren, Pedro Nunes, Jose Trincao, Alistair Siebert, Gwyndaf Evans   +7 more
doaj   +1 more source

Exploding Wire as a Light Source in Flash Photolysis [PDF]

, 1957
The exploding wire technique has been developed for use as a light source in flash photolysis. The method consists of discharging a bank of condensers, via a mechanical switch through a thin Nichrome wire.
Marcus, R. A., Oster, Gisela K.
core   +1 more source

Intrinsically stable light source at telecom wavelengths

, 2013
We present a highly stable light source at telecom wavelengths, based on a short erbium doped fiber. The high stability arises from the high inversion of the Er3+ion population.
Guerreiro, Thiago, Monteiro, Fernando, Sanguinetti, Bruno, Zbinden, Hugo   +3 more
core   +2 more sources

A new Kirkpatrick–Baez-based scanning microscope for the Submicron Resolution X-ray Spectroscopy (SRX) beamline at NSLS-II

Journal of Synchrotron Radiation, 2022
The development, construction, and first commissioning results of a new scanning microscope installed at the 5-ID Submicron Resolution X-ray Spectroscopy (SRX) beamline at NSLS-II are reported. The developed system utilizes Kirkpatrick–Baez mirrors for X-
E. Nazaretski, D. S. Coburn, W. Xu, J. Ma, H. Xu, R. Smith, X. Huang, Y. Yang, L. Huang, M. Idir, A. Kiss, Y. S. Chu   +11 more
doaj   +1 more source

Magnetic excitations beyond the single- and double-magnons

Nature Communications, 2023
A photon carrying one unit of angular momentum can change the spin angular momentum of a magnetic system with one unit (ΔMs = ±1) at most. This implies that a two-photon scattering process can manipulate the spin angular momentum of the magnetic system ...
Hebatalla Elnaggar, Abhishek Nag, Maurits W. Haverkort, Mirian Garcia-Fernandez, Andrew Walters, Ru-Pan Wang, Ke-Jin Zhou, Frank de Groot   +7 more
doaj   +1 more source

Point-source light sensor circuit is insensitive to background light [PDF]

, 1966
Circuit incorporating a bisynchronous demodulator for an electro-optical star-tracking sensor provides a signal proportional to star intensity without interference from background light in the field of view.
Davis, E. S.
core   +1 more source

A compact, multi-pixel parametric light source

, 2003
The features of a compact, single pass, multi-pixel optical parametric generator are discussed. Several hundreds of independent high spatial-quality tunable ultrashort pulses were produced by pumping a bulk lithium triborate crystal with an array of ...
Algis Piskarskas, Arunas Varanavičus, Bewersdorf, Bramati, Champert, Di Trapani, Di Trapani, Di Trapani, Fujita, Minardi, Minardi, Orlov, Paolo Di Trapani, Simos, Stefano Minardi, Stegeman, Streibl, Torner, Trillo, Yoon   +19 more
core   +1 more source

Suboptimal light conditions influence source-sink metabolism during flowering [PDF]

, 2016
Reliance on carbohydrates during flower forcing was investigated in one early and one late flowering cultivar of azalea (Rhododendron simsii hybrids).
Ainsworth, Balk, Bieniawska, Bihmidine, Bodson, Bradford, Bustin, Christiaens, Christiaens, Collier, De Keyser, D’Aoust, Hachiya, Horibe, Ishibashi, Ito, Koch, Koch, Kumar, Kumar, Kumar, Kutschera, Lay-Yee, Lemoine, Li, Ma, Mattson, Moscatello, Münch, Paul, Ranwala, Reale, Roitsch, Shahri, Sood, Sun, Tarpley, van Doorn, Winter, Yamada, Yamada, Yap   +41 more
core   +3 more sources

Characterization of spring and durum wheat using non-destructive synchrotron phase contrast X-ray microtomography during storage

npj Science of Food
Post-harvest losses during cereal grain storage are a big concern in both developing and developed countries, where spring and durum wheat are staple food grains.
Navanth S. Indore, Chithra Karunakaran, Digvir S. Jayas, Jarvis Stobbs, Miranda Vu, Kaiyang Tu, Omar Marinos   +6 more
doaj   +1 more source