|We show that oversampled lter banks (FBs) offer more design freedom and less noise sensitivity than critically sampled FBs. We provide a parameterization of all synthesis FBs satisfying perfect reconstruction for a given oversampled analysis FB, and we derive bounds and expressions for the variance of the reconstruction error due to noisy subband signals. Finally, we introduce noise shaping in...

Article history: Available online 5 August 2009

OBJECTIVE To summarise the concepts critical for understanding the content and value of lifelong learning (LL). METHODS Ideas generated by personal experience were combined with those of philosophers, social scientists, educational institutions, governments and UNESCO, to facilitate an understanding of the importance of the basic concepts of LL. RESULTS Autopoietic, continuous, self-determi...

2.4. 2.5. 2.6. Pulse shaping by linear filtering Picosecond pulse shaping Fourier synthesis of femtosecond optical waveforms 2.3.1. Fixed masks fabricated using microlithography 2.3.2. Spatial light modulators (SLMs) for programmable pulse shaping 2.3.2.1. Pulse shaping using liquid crystal modulator arrays 2.3.2.2. Pulse shaping using acousto-optic deflectors 2.3.3. Movable and deformable mirr...

Algorithms (in some form) are already widely used in the criminal justice system. We draw lessons from this experience for what is to come rest of society as machine learning diffuses. find economists and other social scientists have a key role play shaping impact algorithms, part through improving tools build them.

We often wonder how do we behave in a wide variety of ways. Sometimes we feel happy; sometimes sad. The equipment with which we are born – the brain, nervous system and sensory – motor system is central to the functioning of organism. Earlier, it was believed that there is some inner spirit in all of us that controls our behaviour. Today, we know that our actions and bodily movements take place...

background. efficient canal preparation is the key to successful root canal treatment. this study aimed to assess the cleaning and shaping ability, preparation time and file deformation of rotary, reciprocating and manual instrumentation in canal preparation of primary molars. methods. the mesiobuccal canals of 64 extracted primary mandibular second molars were injected with india ink. the samp...

In 1958, Corbu advocated a ‘new architecture’ for a ‘new man’. The omnipresence of the architect creating spaces to model a society led to architects building many sins. After that the influence of architecture in the lives of its inhabitants began to be a subject ignored. A lot of contemporary architecture limited itself to the production of design or service to capital of the day. In 1...

We show that oversampled filter banks FBs) offer more design freedom and less noise sensitivity t 6 an critically sampled FBs. We provide a parameterization of all synthesis FBs satisfyin perfect reconstruction for a given oversampled analysis FE, and we derive bounds and expressions for the variance of the reconstruction error due to noisy subband signals. Finally, we introduce noise shaping i...