Results 321 to 330 of about 3,670,840 (396)
Some of the next articles are maybe not open access.

Intensity-modulated radiation therapy

Current Problems in Cancer, 2004
For the non radiotherapist, the recent developments of conformal radiotherapy and Intensity Modulated Radiotherapy (IMRT) may represent merely an increase in mystification from a baseline already shrouded in the obscure dark arts of physics. However, the principles of these developments are simple and as the technologies become available, there are ...
Natia, Esiashvili   +2 more
openaire   +4 more sources

A Neuromorphic Silicon Photonics Nonlinear Equalizer For Optical Communications With Intensity Modulation and Direct Detection

Journal of Lightwave Technology, 2019
We present the design and numerical study of a nonlinear equalizer for optical communications based on silicon photonics and reservoir computing. The proposed equalizer leverages the optical information processing capabilities of integrated photonic ...
A. Katumba   +3 more
semanticscholar   +1 more source

Intensity-Modulated Radiation Therapy

Radiation Research, 2002
Intensity-modulated radiation therapy (IMRT) is an increasingly popular technical means of tightly focusing the radiation dose around a cancer. As with stereotactic radiotherapy, IMRT uses multiple fields and angles to converge on the target. The potential for total dose escalation and for escalation of daily fraction size to the gross cancer is ...
Thomas E, Goffman, Eli, Glatstein
openaire   +3 more sources

Suppression of residual intensity modulation noise in resonator integrated optic gyro

Optics Communications, 2019
This study investigated residual intensity modulation (RIM) noise inducing offset error of the first harmonic demodulation in resonator integrated optic gyros.
Chengfei Zhang   +5 more
semanticscholar   +1 more source

Intensity Modulation of Olfactory Acuity.

Behavioral Neuroscience, 2003
Acuity is fundamental to sensory systems, establishing the foundation for detectable differences in stimulus quality and consequently shaping animals' sensory capacities. In the olfactory system, which samples intrinsically high-dimensional chemical information, acuity for odor quality is measurable by means of ad hoc dimensions based on behaviorally ...
Thomas A. Cleland, Venkata Anupama Narla
openaire   +2 more sources

200  Gbit/s/λ PDM-PAM-4 PON system based on intensity modulation and coherent detection

IEEE\/OSA Journal of Optical Communications and Networking, 2019
A low-complexity and cost-efficient coherent detection-based 100 Gb/s or beyond passive optical network (PON) has attracted a lot of attention in recent years, as this technology offers high receiver sensitivity, colorless frequency selectivity, and ...
Jiao Zhang   +9 more
semanticscholar   +1 more source

Modulation of turbulence intensity by heavy finite-size particles in upward channel flow

Journal of Fluid Mechanics, 2021
It has been recognized that, generally, large particles enhance the turbulence intensity, while small particles attenuate the turbulence intensity.
Zhaosheng Yu   +3 more
semanticscholar   +1 more source

Intensity modulation-based spectral polarization measurement method of coded aperture

Optics Communications, 2019
This paper presents a spectral polarization measurement method for single-frame imaging. The method is based on intensity-modulated, coded aperture measurement, comprising a spectral polarization intensity modulation and a compressive sensing spectral ...
Ya Qiao   +4 more
semanticscholar   +1 more source

Compensators for intensity-modulated beams

Medical Dosimetry, 2002
This study describes the importance of attenuator scatter in the construction of compensators. The attenuator used in this study was Lipowitz metal, commonly referred to as cerrobend. Linear attenuation coefficients of cerrobend were measured in air for different thickness of cerrobend sheets and different field sizes for a 6-MV photon beam.
D M, Dimitriadis, B G, Fallone
openaire   +2 more sources

Intensity-modulated moiré topography

Applied Optics, 1999
Moiré topography has the advantage of requiring only a single image to obtain a three-dimensional measurement, but it cannot discern the fringe order. Because there is an ambiguity problem when calculating the depth range by use of fringe intensity or phase unwrapping, it is impossible to obtain an absolute phase and an absolute depth range.
C, Lu, S, Inokuchi
openaire   +2 more sources

Home - About - Disclaimer - Privacy