Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 2587 for “"recording"”.
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A recording interferometer
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1943.
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An automatic recording machine
Made available in DSpace on 2017-11-30T22:11:14Z (GMT). No. of bitstreams: 2 5960481.pdf: 1581243 bytes, checksum: 0d45777bd4f016b960ec7a439878ec97 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1901
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Exploring Low Brass Recording Techniques
<p>The modern day art and science of music recording evolved through a constant process of trial and error. Although many of these techniques are well-documented and commonplace in modern recording studios, most of them are generalized recording techniques used in the popular and classical music …
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Biosignal Recording with Integrated Circuits
… integrated circuits designed to improve signal recording and processing in biomedical applications. The primary focus is on improving low-noise, low-power amplifiers, where a comparison of existing topologies reveals the trade-offs between noise, power consumption and silicon area. Two improved …
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Electromagnetic recording and playback device
… the design and manufacture of an electromagnetic recording and playback device. The device was designed to record information onto a steel wire which can replay the signal. The device is of simple mechanical design, resilient to impacts, minor compression, and operator error. The design has a …
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Recording Transcription Factor Binding During Development
… this dissertation presents a useful method for recording transcription factor binding during development.</p>
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Technologies for tissue culture electrophysiologic recording
… interference which normally interferes with GME recording and data displaying.; (3) Design of an optical instrumentation system that is compatible with microelectrode penetration needs and tissue culture cell observation.; (4) Elimination of building and peripheral instrument vibrational …
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Multiple Electrode Recording of Cardiac Activation.
… much research since its first practical clinical recording by Wilhelm Einthoven who in 1903 produced an electrocardiogram using a string galvanometer. This report describes a multiple electrode device which has been used to record the electrical activation of the epicardial surface of the heart …
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Addressing Engineering Challenges In Bioacoustic Recording
Bioacoustics is a very challenging field due to the necessity of putting fragile, powerhungry pieces of instrumentation out in isolated, hostile environments for long periods of time. Making these instruments as durable as possible, while also considering weight, power consumption, size, and …
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Particulate dispersions for magnetic recording data
The study of a magnetic recording media dispersion has been carried out using hindered settling analysis, the purpose of which was to probe the equilibrium state structure in zero applied magnetic field. The system chosen for the main study was based on a commercial formulation of a y-Fe 203 …
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Computer stimulations of particulate recording media
… to further understand the behaviour of magnetic recording media the relationship between the microscopic and the macroscopic behaviour must be more precisely understood. Computer simulations are an invaluable tool in the development and testing of models of these media. Presented here are several …
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TRANSVERSE SUSCEPTIBILITY STUDIES OF RECORDING MEDIA
… been developed for the investigation of magnetic recording media. The susceptometer was based on the design of Pareti and Turilli[4] with modifications to the solenoid and sensing coils. The modifications have resulted in an improvement in the signal to baseline ratio of a factor of 525, and a …
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Cortical recording with conducting polymer electrodes
… during motor learning. Conventional chronic recording microelectrodes are made from metal or silicon. However, the large stiffness mismatch between the electrodes and brain tissue causes shear-induced inflammation, limiting long-term recording stability. The flexibility of a polypyrrole …
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Recording and Reprogramming Neuroimmunity in Cancer
… and there is no toolkit available for chronic recording or modulation of these cell signaling cascades. In this thesis, we deploy implantable or injectable materials which transmit signals the nervous and immune systems are responsive to. These materials can modulate both systems within a …
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Reconfigurable neural probe for chronic recording
… the usage of neural prosthesis, a sustainable recording method of cleaner neural signals is desired. While invasive neural electrodes can record neural activities with less noise than non-invasive methods and provide the ideal spatial-temporal resolution of the recorded signal, one major …
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Improving Recording and Interpretation of Fossil Tracks
… of hominin locomotion available, yet the recording and measurement of the tracks and the subsequent interpretation to characterise the track-maker is problematic. The fossil sites are susceptible to extreme cases of erosion, often resulting in the destruction of the fossil beds. In this …
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Digital hologram recording systems: some performance improvements
… has been built. This system is capable of recording high-quality digital holograms of a real world 3D object. The object can be rotated on a rotational stage and a full 360� range of perspectives can be recorded. Speckle reduction using moving di�users can be performed to improve the image …
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Transverse susceptibility measurements on particulate recording media
… susceptibility (Xi) measurements on particulate recording media has been made. The main use of this measurement is to determine the anisotropy field (Ilk) of a material which is one of its intrinsic properties. Previous theoretical modelling of Xi was reviewed and a description given of the …
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Dynamic response and noise of recording media
… of medium noise and Neutron Depolarisation in recording media has been made as a function of remanent magnetisation along the isothermal remanence and dc demagnetisation remanence curves. The measurements are discussed in relation to VSM measurements of the remanent characteristics. Medium …
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