Methods for Improving Low Frequency Selection and Electrode Firing Order in Cochlear Implants

The Advanced Bionics cochlear implant devices allocate static frequency bins to electrode channels based on the natural tonotopic organization of the cochlea. These frequency bins are wide and limited, especially in the lower range. Considering that the fundamental tones of the human voice and the primary melodic tones in music are in this lower range, it is important to have accurate representation of this frequency content. Here, adjustments to the frequency bin allocation algorithm used in the crowdsourced CI Hackathon code are made to allow a more accurate representation of the original signal. First, the frequency bins allocated to each channel will be overlapped to allow the lower channels to utilize the parabolic fit method of frequency estimation. Second, a higher order Fourier transform and peak finding algorithm will determine the most important frequencies present, then an adjusted electrode firing order will be found to avoid interference in electrode signals

Regional wrap-up '75: downturn ends, recovery begins

Recessions

Bank dividend cuts: recent experience and the traditional view

Dividends

Regional wrap-up '74: Doldrums descend on district economy

Recessions ; Regional economics

Thrifts compete with banks: Getting a clearer view of a changing picture

Thrift institutions ; Banks and banking

Interest rate futures: a challenge for bankers

Interest rate futures

01 September 1948 MCKINLEY County Specimen Collection Data

Specimen collected 01 September 1948. Original Locality: Zuni River, 1 mile below Zuni Pueblo. Locality: Zuni River, 1 mile below Zuni Pueblo.Catalog number: MSB105; Taxa: Lepomis cyanellus; Common name: green sunfish; Count of specimens: 18; Standard length

01 September 1948 MCKINLEY County Specimen Collection Data

Specimen collected 01 September 1948. Original Locality: Zuni River, 1 mile below Zuni Pueblo. Locality: Zuni River, 1 mile below Zuni Pueblo.Catalog number: MSB105; Taxa: Lepomis cyanellus; Common name: green sunfish; Count of specimens: 18; Standard length

30 August 1948 VALENCIA County Specimen Collection Data

Specimen collected 30 August 1948. Original Locality: Acoma Reservation 4 miles south of Casa Blanca Post Office. Locality: Acoma Reservation 4 miles south of Casa Blanca Post Office.Catalog number: MSB886; Taxa: Rhinichthys cataractae; Common name: longnose dace; Count of specimens: 6; Standard length

Panoramic Views of the Cygnus Loop

We present a complete atlas of the Cygnus Loop supernova remnant in the light of [O III] (5007), H alpha, and [S II] (6717, 6731). Despite its shell-like appearance, the Cygnus Loop is not a current example of a Sedov-Taylor blast wave. Rather, the optical emission traces interactions of the supernova blast wave with clumps of gas. The surrounding interstellar medium forms the walls of a cavity through which the blast wave now propagates, including a nearly complete shell in which non-radiative filaments are detected. The Cygnus Loop blast wave is not breaking out of a dense cloud, but is instead running into confining walls. The interstellar medium dominates not only the appearance of the Cygnus Loop but also the continued evolution of the blast wave. If this is a typical example of a supernova remnant, then global models of the interstellar medium must account for such significant blast wave deceleration.Comment: 28 pages AAS Latex, 28 black+white figures, 6 color figures. To be published in The Astrophysical Journal Supplement Serie