نتایج جستجو برای: non linear optic

تعداد نتایج: 1742149  

Journal: :journal of agricultural science and technology 2015
sh. gorjian b. ghobadian t. tavakkoli hashjin

solar radiation data play an important role in solar energy relevant researches. these data are not available for some locations due to the absence of the meteorological stations. therefore, solar radiation data have to be predicted by using solar radiation estimation models. this study presents an integrated artificial neural network (ann) approach for estimating solar radiation potential over...

2006
Namkhun Srisanit

We report on a novel technique to realize a waveguide optical isolator without using conventional magneto-optical materials and external magnets. The simulations are repeatedly performed using Beam Propagation Method (BPM) to confirm the accuracy. The simulation results show that the forward and backward propagations reach 2.54 and 15.68 dB, respectively.

R.B.Kazemzadeh, R.Noorossana and M. Karbasian,

In the last few years, Run-to-Run (R2R) control techniques have been developed and used to control various processes in industries. These techniques combine response surface, statistical process control, and feedback control techniques. The R2R controller consists of a linear regression model that relates input variables to output variables using Exponentially Weighted Moving Average (EWMA). In...

Journal: :Journal of Economic Theory 2005

Arefe Fazeli, Kasra Jamshidi,

Optic neuritis an inflammatory disorder of the optic nerve inflammation is usually in young’s with symptoms of eye pain and vision loss that occurs is a common symptom of MS. Optic neuritis is one of the first symptoms of MS that observable into disorders in white matter of cerebral cortex. The risk of MS in patients with optic neuritis during 2 years 20% in 15 years, 45-80% is calculated...

Journal: :Journal of Chemical Physics 2021

We present a rapid-scanning approach to fluorescence-detected two-dimensional electronic spectroscopy that combines acousto-optic phase-modulation with digital lock-in detection. The shifts the signal detection window suppress 1/f laser noise and enables interferometric tracking of time delays allow for correction spectral phase distortions accurate phasing data. This use acquisition linear non...

Journal: :AJNR. American journal of neuroradiology 1984
T T Johns C M Citrin J Black J L Sherman

Cranial computed tomographic scans of 225 patients with orbital mass lesions were reviewed. In 11 patients, the optic nerve was seen as a linear defect through the orbital mass. These 11 cases comprised three optic nerve sheath meningiomas, three hemangiomas, two cases of pseudotumor, and one case each of Erdheim-Chester disease, optic neuritis, and metastatic disease. Optic nerve sheath mening...

Journal: :AJNR. American journal of neuroradiology 1998
S Matsumoto K Hasuo A Mizushima F Mihara M Fukui T Shirouzu K Masuda

Two cases of intracranial penetration of a plastic or wooden chopstick via the optic canal are described. CT scans showed the chopsticks as linear hypodense structures in the suprasellar cistern contiguous with the optic canal. In one case, MR imaging was performed, which clearly depicted the foreign body and adjacent brain structures. Although they are extremely rare, transorbital intracranial...

2001
A. V. Panov

A computer model of the feed-forward neural network with the hidden layer is developed to reconstruct physical field investigated by the fiber-optic measuring system. The Gaussian distributions of some physical quantity are selected as learning patterns. Neural network is learned by error backpropagation using the conjugate gradient and coordinate descent minimization of deviation. Learned neur...

Journal: :European journal of ophthalmology 2005
I C Asproudis A N Nikas K G Psilas

PURPOSE To report a case and describe the clinical approach to a patient with a non-small cell lung carcinoma and paraneoplastic optic neuropathy. METHODS Case report. RESULTS A 79-year-old woman with known non-small cell lung carcinoma was admitted with a swollen optic disc in the right eye. After detailed clinical, laboratory, and imaging studies, the authors diagnosed paraneoplastic opti...

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