2,840 research outputs found
A Literary Journey Back in Time
Before I began writing, I reflected on the effect literature has had on my life. I brainstormed different experiences in which I found literature to be very influential. I talked with various people including my parents and past teachers to ensure the accuracy of the various childhood stories I decided to write about. When it came time to put the final draft together, I focused on my various experiences with literature and the grand effect it has had on my life. I also incorporated why I value being a literate person today as a university student.
Editor\u27s note: For this paper, the author received the journal\u27s award for Best Literacy Narrative ($100 prize)
Pride of Missouri: The Adventures of Missouri Farm Boys in 1940s World Conflict
In collaboration with the Museum of Missouri Military History, an exhibition for the 203rd Coast Artillery Battalion (Anti-Aircraft) housed in the National Guard Headquarters exhibit case will be on display March 2020 through April 2020 in Jefferson City, Missouri. The exhibit will show the Missouri men deployed for military service, newspaper articles the men wrote, and objects the men brought back from the time of service. The paper is a historical narrative essay about the mobilization of the 203rd Coast Artillery Battalion (Anti-Aircraft) during World War II, and from the research, a physical exhibit and an online exhibit have been created. The goal of the project is to encourage people to remember World War II by telling the story of Missourians who went to war, and the importance of hometown identity and pride by showing how the men kept the connection to hometowns by writing to the hometown newspapers
Pride of Missouri: The Adventures of Missouri Farm Boys in 1940s World Conflict
In collaboration with the Museum of Missouri Military History, an exhibition for the 203rd Coast Artillery Battalion (Anti-Aircraft) housed in the National Guard Headquarters exhibit case will be on display March 2020 through April 2020 in Jefferson City, Missouri. The exhibit will show the Missouri men deployed for military service, newspaper articles the men wrote, and objects the men brought back from the time of service. The paper is a historical narrative essay about the mobilization of the 203rd Coast Artillery Battalion (Anti-Aircraft) during World War II, and from the research, a physical exhibit and an online exhibit have been created. The goal of the project is to encourage people to remember World War II by telling the story of Missourians who went to war, and the importance of hometown identity and pride by showing how the men kept the connection to hometowns by writing to the hometown newspapers
Neutron activation of natural zinc samples at kT = 25 keV
The neutron-capture cross sections of 64Zn, 68Zn, and 70Zn have been measured
with the activation technique in a quasistellar neutron spectrum corresponding
to a thermal energy of kT = 25 keV. By a series of repeated irradiations with
different experimental conditions, an uncertainty of 3% could be achieved for
the 64Zn(n,g)65Zn cross section and for the partial cross section
68Zn(n,g)69Zn-m feeding the isomeric state in 69Zn. For the partial cross
sections 70Zn(n,g)71Zn-m and 70Zn(n,g)71Zn-g, which had not been measured so
far, uncertainties of only 16% and 6% could be reached because of limited
counting statistics and decay intensities. Compared to previous measurements on
64,68Zn, the uncertainties could be significantly improved, while the 70Zn
cross section was found to be two times smaller than existing model
calculations. From these results Maxwellian average cross sections were
determined between 5 and 100 keV. Additionally, the beta-decay half-life of
71Zn-m could be determined with significantly improved accuracy. The
consequences of these data have been studied by network calculations for
convective core He burning and convective shell C burning in massive stars
Dispersion of longitudinal momentum distributions induced in fragmentation reactions
On the basis of systematic measurements of fragmentation reactions, which
provide a detailed overview on the velocity distributions of residual nuclei,
an improved description of the kinematical properties of the fragmentation
residues is established. This work is dedicated to the fluctuations of their
momentum distributions. In contrast to previous investigations, limited to
close-to-projectile fragments, we extended our study to the entire production
range, down to the lightest observed fragments. In this context, beside the
contribution of abrasion and evaporation processes, we considered the effect of
the thermal break-up on the width of the momentum distributions. Using
approximated theoretical descriptions of the different reaction stages, a new
analytical formula for the variance of the momentum distribution is derived,
which is well adapted to technical applications.Comment: 14 pages, 3 figures, background info. at
http://www-wnt.gsi.de/charms
New Stellar Cross Sections and The "Karlsruhe Astrophysical Database of Nucleosynthesis in Stars"
Since April 2005 a regularly updated stellar neutron cross section
compilation is available online at http://nuclear-astrophysics.fzk.de/kadonis.
This online-database is called the "Karlsruhe Astrophysical Database of
Nucleosynthesis in Stars" project and is based on the previous Bao et al.
compilation from the year 2000. The present version \textsc{KADoNiS} v0.2
(January 2007) includes recommended cross sections for 280 isotopes between
H and Po and 75 semi-empirical estimates for isotopes without
experimental information. Concerning stellar cross sections of the
32 stable, proton-rich isotopes produced by the process experimental
information is only available for 20 isotopes, but 9 of them have rather large
uncertainties of 9%. The first part of a systematic study of stellar
cross sections of the -process isotopes Se, Sr,
Pd, Te, Ba, Ba, Dy, and Hf is
presented. In another application \textsc{KADoNiS} v0.2 was used for an
modification of a reaction library of Basel university. With this modified
library -process network calculations were carried out and compared to
previous results.Comment: Proceedings "International Conference on Nuclear Data for Science and
Technology 2007", Nice/ Franc
Stellar (n,gamma) cross sections of p-process isotopes PartI: 102Pd, 120Te, 130,132Ba,and 156Dy
We have investigated the (n,gamma) cross sections of p-process isotopes with
the activation technique. The measurements were carried out at the Karlsruhe
Van de Graaff accelerator using the 7Li(p,n)7Be source for simulating a
Maxwellian neutron distribution of kT = 25 keV. Stellar cross section
measurements are reported for the light p-process isotopes 102Pd, 120Te,
130,132Ba, and 156Dy. In a following paper the cross sections of 168Yb, 180W,
184Os, 190Pt, and 196Hg will be discussed. The data are extrapolated to
p-process energies by including information from evaluated nuclear data
libraries. The results are compared to standard Hauser-Feshbach models
frequently used in astrophysics.Comment: 13 pages, 4 figure
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