نتایج جستجو برای: uniform frame

تعداد نتایج: 210861  

2014
C. Mei

Wave vibration analysis approach is found a systematic and concise approach in solving complex vibration problems in built-up frame structures. From the wave vibration standpoint, vibrations propagate along a uniform waveguide, and are reflected and transmitted at discontinuities. In this study, a multi-story multi-bay steel frame is built. The wave vibration analysis approach is applied to stu...

2004
Anette Frank

In this paper we discuss motivations and strategies for generalising over instance-based frame assignment rules that we extract from frame-annotated corpora. Corpus-induced syntax-semantics mapping rules for frame assignment can be used for automatic semantic role labelling of unparsed text, but further, to extract linguistic knowledge for a lexical semantic resource with a general syntax-seman...

2005
Radu Balan Peter G. Casazza Christopher Heil Zeph Landau

The excess of a sequence in a Hilbert space H is the greatest number of elements that can be removed yet leave a set with the same closed span. This paper proves that if F is a frame for H and there exist infinitely many elements gn ∈ F such that F \ {gn} is complete for each individual n and if there is a uniform lower frame bound L for each frame F \ {gn}, then for each ε > 0 there exists an ...

1999
Helmut Bölcskei Franz Hlawatsch Hans G. Feichtinger

We provide a frame-theoretic analysis of oversampled finite impulse response (FIR) and infinite impulse response (IIR) uniform filter banks (FB’s). Our analysis is based on a new relationship between the FB’s polyphase matrices and the frame operator corresponding to an FB. For a given oversampled analysis FB, we present a parameterization of all synthesis FB’s providing perfect reconstruction....

2012
Kirk T. McDonald Joseph Henry

An electrically neutral current-loop, with magnetic dipole m0, that is at rest in a static, uniform electric field E0 experiences no force or torque. However, if that system is observed in the lab frame where the loop has velocity v parallel to E0, and v c, where c is the speed of light, then there appears to be an electric dipole moment, p = v/c×m0 associated with the loop (in Gaussian units)....

2017
Suolan Liu Hongyuan Wang

Recently, the rapid development of inexpensive RGB-D sensor, like Microsoft Kinect, provides adequate information for human action recognition. In this paper, a recognition algorithm is presented in which feature representation is generated by concatenating spatial features from human contour of key frames and temporal features from time difference information of a sequence. Then, an improved m...

Journal: :international journal of civil engineering 0
mohsen shahrouzi engineering department, kharazmi university, hesarak, karaj, iran amir abbas rahemi department of engineering, kharazmi university, tehran, iran

well-known seismic design codes have offered an alternative equivalent static procedure for practical purposes instead of verifying design trials with complicated step-y-step dynamic analyses. such a pattern of base-shear distribution over the building height will enforce its special stiffness and strength distribution which is not necessarily best suited for seismic design. the present study, ...

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