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Institution

General Electric

CompanyBoston, Massachusetts, United States
About: General Electric is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Turbine & Rotor (electric). The organization has 76365 authors who have published 110557 publications receiving 1885108 citations. The organization is also known as: General Electric Company & GE.
Topics: Turbine, Rotor (electric), Signal, Combustor, Coating


Papers
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Journal ArticleDOI
01 Nov 1944
TL;DR: In this article, the effects of the local waves in the vicinity of the discontinuity can be accounted for exactly for calculation of relation between input-and output-end quantities by placing an admittance at the plane of discontinuity in a transmission-line or principal-wave equivalent circuit.
Abstract: The equivalent circuits representing the effects from certain step-type discontinuities are obtained for coaxial transmission lines It is shown that for the cases studied the effects of the local waves in the vicinity of the discontinuity can be accounted for exactly for calculation of relation between input- and output-end quantities by placing an admittance at the plane of the discontinuity in a transmission-line or principal-wave equivalent circuit If frequency is low enough so that transverse dimensions are a small fraction of a wavelength, the discontinuity admittance is found to be a pure capacitance for these cases Curves are presented giving the discontinuity capacitances in terms of the coaxial-line radii Curves of a frequency factor F are calculated showing the amount the discontinuity capacitance must be corrected as transverse dimensions become comparable to wavelength Curves of a proximity factor P are also given showing corrections to be applied to the discontinuity capacitance if a short-circuiting disk termination is placed near the plane of the discontinuity The analysis of the case of a simple-step discontinuity on the inner cylinder is carried through in detail, and analyses of other cases are outlined

165 citations

Book
01 Jan 1981
TL;DR: Vibration measurement transducers signal processing condition monitoring measurements instrumentation for recording and analysis mechanical condition measurements type, processing and display analyzing machine condition determining machine condition judging overall condition condition monitoring balancing alignment machinery analysis condition monitoring and predictive maintenance establishing a predictive monitoring program as mentioned in this paper.
Abstract: Vibration measurement transducers signal processing condition monitoring measurements instrumentation for recording and analysis mechanical condition measurements type, processing and display analyzing machine condition determining machine condition judging overall condition condition monitoring balancing alignment machinery analysis condition monitoring and predictive maintenance establishing a predictive monitoring program.

165 citations

Patent
07 Mar 1986
TL;DR: In this article, a geometry process for use in a graphics processing system, especially adapted to couple with a hierarchically structured graphics database memory, a special purpose processor for traversing the database, and a display processor, is presented.
Abstract: A geometry process for use in a graphics processing system, especially adapted to couple with a hierarchically structured graphics database memory, a special purpose processor for traversing the database, and a display processor, wherein the geometry processor includes double-buffered input registers, a first private data bus to the special purpose traversing processor, a second private data bus to the graphics database memory, a high-speed arithmetic processing module, a double-buffered output register, and a microprogrammable control system. The geometry processor is configured to process the graphics database in two passes. The first pass is a culling operation that culls out graphics data supplied from the database memory that is outside of a defined viewing volume, with the culled data being sent over of the first private bus to a stack memory in the traversing processor. The second pass retraverses the culled data, along with additional associated data from the database memory, from the traversing processor's stack memory and transforms that data from a three-dimensional mathematical format to a two-dimensional format suitable for display on a video display system.

165 citations

Journal ArticleDOI
TL;DR: The p-Creode algorithm as mentioned in this paper produces multi-branching graphs from single-cell data, compares graphs with differing topologies, and infers a statistically robust hierarchy of cell-state transitions that define developmental trajectories.
Abstract: Summary Modern single-cell technologies allow multiplexed sampling of cellular states within a tissue. However, computational tools that can infer developmental cell-state transitions reproducibly from such single-cell data are lacking. Here, we introduce p-Creode, an unsupervised algorithm that produces multi-branching graphs from single-cell data, compares graphs with differing topologies, and infers a statistically robust hierarchy of cell-state transitions that define developmental trajectories. We have applied p-Creode to mass cytometry, multiplex immunofluorescence, and single-cell RNA-seq data. As a test case, we validate cell-state-transition trajectories predicted by p-Creode for intestinal tuft cells, a rare, chemosensory cell type. We clarify that tuft cells are specified outside of the Atoh1 -dependent secretory lineage in the small intestine. However, p-Creode also predicts, and we confirm, that tuft cells arise from an alternative, Atoh1 -driven developmental program in the colon. These studies introduce p-Creode as a reliable method for analyzing large datasets that depict branching transition trajectories.

165 citations

Journal ArticleDOI
TL;DR: Phased-array imaging, including complete dynamic focus, is explored for imaging using a circular aperture based on the constraints of catheter-based systems, and a dynamically focused image exhibiting diffraction limited resolution is produced.
Abstract: Phased-array imaging, including complete dynamic focus, is explored for imaging using a circular aperture. Based on the constraints of catheter-based systems, an efficient synthetic aperture method has been developed for imaging using a single wire connection between the imaging array and external electronics. The method employs a highly sampled array with an element pitch small compared to the acoustic wavelength. On any given firing of the array, however, a large number of channels are electrically connected on both transmission and reception. From firing to firing, one element is dropped and one new element is included, in analogy to a classic linear array system. Using an optimal filtering approach for synthetic aperture reconstruction, a dynamically focused image exhibiting diffraction limited resolution is produced. The results of detailed simulations are presented demonstrating the capabilities of the method. In addition, the prospects for real-time implementation of the reconstruction are discussed. >

165 citations


Authors

Showing all 76370 results

NameH-indexPapersCitations
Cornelia M. van Duijn1831030146009
Krzysztof Matyjaszewski1691431128585
Gary H. Glover12948677009
Mark E. Thompson12852777399
Ron Kikinis12668463398
James E. Rothman12535860655
Bo Wang119290584863
Wei Lu111197361911
Harold J. Vinegar10837930430
Peng Wang108167254529
Hans-Joachim Freund10696246693
Carl R. Woese10527256448
William J. Koros10455038676
Thomas A. Lipo10368243110
Gene H. Golub10034257361
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20231
202216
2021415
20201,027
20191,418
20181,862