1,239 research outputs found
A Soldier\u27s Blog: Balancing Service Members\u27 Personal Rights vs. National Security Interests
This Note examines the competing interests between ensuring military personnel\u27s freedom of speech while protecting national security interests. The Author recognizes the necessity of protecting national security interests but emphasizes that military personnel\u27s rights to free speech must be protected as long as such speech poses no threat to military security. In conclusion, clearer protections must be implemented to protect military personnel\u27s right to free speech
A Soldier\u27s Blog: Balancing Service Members\u27 Personal Rights vs. National Security Interests
This Note examines the competing interests between ensuring military personnel\u27s freedom of speech while protecting national security interests. The Author recognizes the necessity of protecting national security interests but emphasizes that military personnel\u27s rights to free speech must be protected as long as such speech poses no threat to military security. In conclusion, clearer protections must be implemented to protect military personnel\u27s right to free speech
Measuring the eccentricity of the Earth orbit with a nail and a piece of plywood
I describe how to obtain a rather good experimental determination of the
eccentricity of the Earth orbit, as well as the obliquity of the Earth rotation
axis, by measuring, over the course of a year, the elevation of the Sun as a
function of time during a day. With a very simple "instrument" consisting of an
elementary sundial, first-year students can carry out an appealing measurement
programme, learn important concepts in experimental physics, see concrete
applications of kinematics and changes of reference frames, and benefit from a
hands-on introduction to astronomy.Comment: 12 pages, 6 figure
Ethical Hacking for Effective Defense
This Grants Collection for Ethical Hacking for Effective Defense was created under a Round Eight ALG Textbook Transformation Grant.
Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.
Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials: Linked Syllabus Initial Proposal Final Reporthttps://oer.galileo.usg.edu/compsci-collections/1008/thumbnail.jp
Discrete Structures (KSU)
This Grants Collection for Discrete Structures was created under a Round Eleven ALG Textbook Transformation Grant.
Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.
Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials: Linked Syllabus Initial Proposal Final Reporthttps://oer.galileo.usg.edu/compsci-collections/1025/thumbnail.jp
Book Reviews
The Law of the Soviet State By Andrei Y. Vyshinsky New York: The Macmillan Company, 1949. Pp. xvii, 749. 1.00
Soviet Civil Law By Vladimir Gsovski Ann Arbor: University of Michigan Volume I, 1948. Pp. xxxvii, 909. Volume II, 1949. Pp. xx, 906. 15.00 per set
reviewer: Stanley D. Rose
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Missouri Lawyer By John T. Barker Philadelphia: Dorrance & Company,1949. Pp. 391. 4.00
reviewer: Sam Davis Tatu
An S2 Fluorescence Model for Interpreting High-Resolution Cometary Spectra. I. Model Description and Initial Results
A new versatile model providing S2 fluorescence spectrum as a function of
time is developed with the aim of interpreting high resolution cometary
spectra. For the S2 molecule, it is important to take into account both
chemical and dynamic processes because S2 has a short lifetime and is confined
in the inner coma where these processes are most important. The combination of
the fluorescence model with a global coma model allows for the comparison with
observations of column densities taken through an aperture and for the analysis
of S2 fluorescence in different parts of the coma. Moreover, the model includes
the rotational structure of the molecule. Such a model is needed for
interpreting recent high spectral resolution observations of cometary S2. A
systematic study of the vibrational-rotational spectrum of S2 is undertaken,
including relevant effects, such as non-equilibrium state superposition and the
number density profile within the coma due to dynamics and chemistry, to
investigate the importance of the above effects on the scale length and
abundance of S2 in comets.Comment: 20 pages, 7 figure
Compensation strategies for robotic motion errors for additive manufacturing (AM)
It is desirable to utilise a robotic approach in additive manufacturing as Computer Numerical Control (CNC) is expensive and it has high maintenance costs. A robotic approach is relatively inexpensive compared to CNC and can provide much more flexibility, enabling a variety of configurations and easier parallel processing. However, robots struggle to achieve high positioning accuracy and are more prone to disturbances from the process forces. This paper attempts to characterise the robot position and velocity errors, which depend on the build strategy deployed, using a laser speckle correlation sensor to measure the robotic motion. An assessment has been done as to whether these errors would cause any problem in additive manufacturing techniques, where the test parts were built using the Wire+Arc Additive Manufacture (WAAM) technique. Finally, different compensation strategies are discussed to counter the robotic errors and a reduction of 3 mm in top surface profile irregularity by varying the wire feed speed (WFS) during the path has been demonstrated
Laser speckle velocimetry for robot manufacturing
A non-contact speckle correlation sensor for the measurement of robotic tool speed is presented for use in robotic manufacturing and is capable of measuring the in-plane relative velocities between a robot end-effector and the workpiece or other surface. The sensor performance was assessed in the laboratory with the sensor accuracies found to be better than 0:01 mm/s over a 70 mm/s velocity range. Finally an example of the sensors application to robotic manufacturing is presented where the sensor was applied to tool speed measurement for path planning in the wire and arc additive manufacturing process using a KUKA KR150 L110/2 industrial robot
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