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 1842 for “"Angular"”.
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Student understanding of the kinematic quantities of angular speed and angular acceleration
… understanding and reasoning of the concepts, angular speed and angular acceleration. The analysis was based on student responses to various tasks presented to them during one hour long interviews. These responses were characterized from a phenomeno graphic research perspective developed by …
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Cosmology and galactic angular momenta
… of the observations involves an estimate of the angular momentum in a given volume of space and the ratio of this momentum to the mass or number of nucleons in the given volume. We therefore wish to obtain a rough estimate of the angular momentum in that part of the universe which man may call …
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Development of an angular accelerometer
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1939.
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High Angular Momentum Rydberg Wave Packets
High angular momentum Rydberg wave packets are studied. Application of carefully tailored electric fields to low angular momentum, high- n ( n ∼ 300) Rydberg atoms creates coherent superpositions of Stark states with near extreme values of angular momentum, [cursive l]. Wave packet components orbit …
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Angular Momentum Evolution of Young Stars
… order to achieve a better understanding of their angular momentum evolution during this evolutionary stage. For that purpose I have carried out an extensive photometric monitoring program which enabled me to identify a total of 405 periodic and 184 irregular variable PMS stars in the young open …
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Analysis of angular scintillation of radar echoes
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering, 1952
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Angular trapping of a mirror using radiation pressure
… readout and the radiation-pressure induced angular instability in Fabry-</p> <p>Perot cavities (Sidles-Sigg instability). In this thesis, I present optical springs as a</p> <p>tool to damp the motion of a mirror. I discuss the design and implementation of a single</p> <p>degree-of-freedom …
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Angular Correlation of Low Intensity Gamma-Gamma Cascades
Made available in DSpace on 2015-05-12T17:11:43Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0004475.PDF: 3370684 bytes, checksum: 83eb45c2e6e4346758d892488337b99e (MD5) Previous issue date: 1952
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Projected Angular Statistics for Large-scale Structure Cosmology
… measure (sometimes approximate) redshifts and angular positions of galaxies, which trace the LSS. The natural observables are maps of the galaxy overdensity, projected in redshift bins. Similarly, line-intensity mapping (LIM) surveys measure fluctuations in the sky brightness in narrow …
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Neutron-neutron angular correlation in 252Cf spontaneous fission
The angular correlation between prompt neutrons emitted in 252 cf spontaneous fission has been measured. The observed correlation is compared with a theoretical calculation based on the evaporation model of neutron emission. It is found that the evaporation model is unable to account for the …
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Gyroscope angular rate processing across asynchronous clock domains
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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The regulation of angular momentum during human walking
The conservation of angular momentum provides an elegant model for human walking and might be used to generate stable robotic locomotion if employed by a control algorithm. To examine the extent to which the body regulates angular momentum, a force model was developed to predict horizontal ground …
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The ground state and angular distributions of Ag18Ì
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1965.
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Linear and Angular Head Accelerations in Daily Life
… study was to determine the linear accelerations, angular rates, and angular accelerations of the center of gravity of the head during daily activities and to determine the effect of angular terms on the linear accelerations. A total of 700 experiments were conducted with 18 subjects performing 13 …
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A Neuronal Circuit Architecture for Angular Integration in Drosophila
… environment, many animals keep track of their angular heading over time. However, a neuronal-circuit architecture for computing heading remains unknown in any species. In this thesis, I describe a set of neurons in the Drosophila central complex whose wiring and physiology provide a means to …
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Turbulent Angular Momentum Transport in Weakly-Ionized Accretion Disks
… (accumulating) onto a central object. Since the angular momentum of the infalling material is conserved, a disk naturally forms as a repository of angular momentum. Dissipation removes energy and angular momentum from the system and allows the disk to accrete. It is the energy lost in this …
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Tailoring angular and spectral behaviour in perovskite optoelectronic devices
Controlling the angular and spectral behaviour of light in optoelectronic devices is crucial for meeting the demands of advanced applications. Advanced technologies such as displays and optical communications require precise management of light emission, particularly in terms of intensity and …
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Physical-Security for Wireless with Orbital Angular Momentum Wave
As technology progresses and an ever-increasing number of digital data are transmitted day to day, securing data has emerged as a major field of research. Conventional cryptography in higher layers of protocol stack has been studied as a data protection technique from an unauthorized party by …
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