نتایج جستجو برای: propagation matrix

تعداد نتایج: 467261  

David Smith Mojtaba Mansour Abadi Wai Pang Ng Zabih Ghassemlooy

Studying Gaussian beam is a method to investigate laser beam propagation and ABCD matrix is a fast and simple method to simulate Gaussian beam propagation in different mediums. Of the ABCD matrices studied so far, reflection and refraction matrices at various surfaces have attracted a lot of researches. However in previous work the incident beam and the principle axis of surface are in parallel...

Journal: :Automatica 1986
Yaakov Oshman I. Y. Bar-Itzhack

-Two new square root Kalman filtering algorithms are presented. Both algorithms are based on the spectral V A of the covariance matrix where V is the matrix whose columns are the eigenvectors of the covariance and A is the diagonal matrix of its eigenvalues. The algorithms use the covariance mode in the time propagation stage and the information mode in the measurement update stage. This switch...

2017
Mohammad Reza Hairi Yazdi Mansour Nikkhah-Bahrami Masih Loghmani Hairi Yazdi

Article history: Received 20 September 2016 Received in revised form 11 May 2017 Accepted 14 May 2017 Available online 10 June 2017 In this paper, free longitudinal vibration of nanorods is investigated from the wave viewpoint. The Eringen’s nonlocal elasticity theory is used for nanorods modelling. Wave propagation in a medium has a similar formulation as vibrations and thus, it can be used to...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1390

موضوع پایان نامه به خزش و رتبه بندی صفحات وب اختصاص داده شده است. خزش و رتبه بندی از بخش های مهم در موتور های جستجو می باشند که به ترتیب وظیفه ی بارگذاری صفحات با کیفیت و رتبه بندی نتایج بازگشتی به کاربر را بر عهده دارند. تا کنون الگوریتم های خزش متنوعی پیشنهاد شده اند، اما یا بازدهی مناسبی نداشته اند یا از پیچیدگی بالایی برخوردار هستند. لذا الگوریتم خزش کارایی به نام ieca(intelligent effective...

2001
João P. Silva

In the presence of CP violation, the effective Hamiltonian matrix describing a neutral meson anti-meson system does not commute with its hermitian conjugate. As a result, this matrix cannot be diagonalized by a unitary transformation and one needs to introduce a reciprocal basis. Although known, this fact is seldom discussed and almost never used. Here, we use this concept to highlight a parame...

2001
Takeshi Inagaki

In this ultra short note, gauge field propagation in D-brane configuration of M theory in the BFSS matrix formulation is considered. Noncommutativity of the space plays a key role for appearance of gauge fields as physical degrees of freedom.

2007
Srinivasan S. Iyengar Xiaohu Li Isaiah Sumner

The ab initio atom-centered density matrix propagation (ADMP) and the quantum wavepacket ab initio molecular dynamics (QWAIMD) computational methods are briefly described. Studies on vibrational and electronic properties obtained utilizing these methods are highlighted. ∗ [email protected]

Journal: :CoRR 2014
Noah D. Stein

We augment the nonnegative matrix factorization method for audio source separation with cues about directionality of sound propagation. This improves separation quality greatly and removes the need for training data, but doubles the computation.

2016
R. Refianti

Classical techniques for clustering, such as k-means clustering, are very sensitive to the initial set of data centers, so it need to be rerun many times in order to obtain an optimal result. A relatively new clustering approach named Affinity Propagation (AP) has been devised to resolve these problems. Although AP seems to be very powerful it still has several issues that need to be improved. ...

Journal: :CoRR 2009
Yuan Qi Ahmed H. Abdel-Gawad Tom Minka

Gaussian processes (GPs) provide a probabilistic nonparametric representation of functions in regression, classification, and other problems. Unfortunately, exact learning with GPs is intractable for large datasets. A variety of approximate GP methods have been proposed that essentially map the large dataset into a small set of basis points. The most advanced of these, the variable-sigma GP (VS...

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