Results 21 to 30 of about 1,942,479 (324)
Enhancing gradient force over scattering force for nano-trapping through compensating for aberration
New Journal of Physics, 2023 One challenge of optical trapping of nanoparticles is the weak trapping force compared to the destabilizing pushing force. Here we enhance the optical gradient force (GF), which is responsible for trapping, to achieve stable nanoparticle trapping through
Dongyong Wang, Xiao Li, Jack Ng
doaj +1 more source
Minimum $G_2$-aberration for nonregular fractional factorial designs [PDF]
The Annals of Statistics, 1999 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tang, Boxin, Deng, Lih-Yuan
openaire +2 more sources
Generalized minimum aberration mixed-level orthogonal arrays: A general approach based on sequential integer quadratically constrained quadratic programming [PDF]
, 2015 Orthogonal fractional factorial designs and in particular orthogonal arrays (OAs) are frequently used in many fields of application, including medicine, engineering, and agriculture.
R. Fontana
semanticscholar +1 more source
Active Adjustment of the Subreflector Shape for the Large Dual-Reflector Antenna
Micromachines, 2023 A shape adjustment method for subreflectors based on minimizing the residual wavefront error of the large dual-reflector antenna is presented. This method is used to compensate for the antenna structural deformation caused by environment loading.
Binbin Xiang +6 more
doaj +1 more source
مجلة بغداد للعلوم, 2009 An optimization calculation is made to find the optimum properties of combined quadrupole lens which consists of electrostatic and magnetic lens. Both chromatic and spherical aberration coefficients are reduced to minimum values and the achromatic ...
Baghdad Science Journal
doaj +1 more source
Vision, 2022 (1) Introduction: We analysed epithelial changes after the treatment of moderate myopia with transepithelial photorefractive keratectomy. (2) Materials and Methods: We used optical coherence tomography data and analysed changes in the stroma and ...
Diego de Ortueta +2 more
doaj +1 more source
Evaluations of wavefront aberrations and corneal surface regularity in dry eye patients measured with OPD Scan III [PDF]
International Journal of Ophthalmology, 2022 AIM: To compare the wavefront aberrations and corneal surface regularity between dry eye (DE) patients and normal subjects and assess its diagnostic performance for DE measured with OPD Scan-III.
Rong-Jun Liu +4 more
doaj +1 more source
Nonlinear Matroid Optimization and Experimental Design [PDF]
, 2007 We study the problem of optimizing nonlinear objective functions over matroids presented by oracles or explicitly. Such functions can be interpreted as the balancing of multi-criteria optimization. We provide a combinatorial polynomial time algorithm for
Eva Riccomagno +7 more
core +7 more sources
A trigonometric approach to quaternary code designs with application to one-eighth and one-sixteenth fractions [PDF]
, 2011 The study of good nonregular fractional factorial designs has received significant attention over the last two decades. Recent research indicates that designs constructed from quaternary codes (QC) are very promising in this regard.
Mukerjee, Rahul +3 more
core +1 more source
Clinical Ophthalmology, 2022 Mohammed Abd Elghaffar Shehata, Mohamed Hassan Hosny, Doaa Ahmed Tolba, Mohamed Attya Department of Ophthalmology, Cairo University, Cairo, EgyptCorrespondence: Mohamed Attya, Department of Ophthalmology, Cairo University, 15th Zahret Alsokar, Alsheikh ...
Abd Elghaffar Shehata M +3 more
doaj