82,907 research outputs found
Residual-strength tests of L-1011 vertical fin components after 10 and 20 years of simulated flight service
Part of the NASA/ACEE Program was to determine the effect of long-term durability testing on the residual strength of graphite-epoxy cover panel and spar components of the Lockheed L-1011 aircraft vertical stabilizer. The results of these residual strength tests are presented herein. The structural behavior and failure mode of both cover panel and spar components were addressed, and the test results obtained were compared with the static test results generated by Lockheed. The effect of damage on one of the spar specimens was described
Stability and Security in Employment and Decent Work
This document is part of a digital collection provided by the Martin P. Catherwood Library, ILR School, Cornell University, pertaining to the effects of globalization on the workplace worldwide. Special emphasis is placed on labor rights, working conditions, labor market changes, and union organizing.FLA_2012_Rpt_Stability_Security_Decent_Work.pdf: 1885 downloads, before Oct. 1, 2020
NLO predictions for the growth of at small and comparison with experimental data
We present parametrizations for the proton structure function in the
next to leading order in perturbative QCD. The calculations show that the
dominant term to should grow as x^{-\ls} for small values,
with the exponent \ls being essentially independent of . Comparisons
with the most recent H1 and ZEUS data confirm the value \ls \sim 0.35
obtained previously from fits to low energy data.Comment: 18 page
THE POLITICS OF LEGAL REFORM
As a result of the emerging market crises of the last decade and a large body of academic research on the influence of investor protection in the development of capital markets and economic growth, there is a growing consensus that reforming the legal infrastructure supporting business should be an important component of reforms in many developing countries. But the consensus is unwieldy, as there are still many forces against reform and little agreement about what constitutes feasible legal reforms. This paper has two parts. In the first, we identify the forces for and against legal reform and review the role these forces play in episodes of reform. In the second, we seek to further our understanding of what constitutes good laws and regulatory mechanisms, and more importantly how to make them enforceable in different countries. If legal reform is to succeed, the commonly advocated principles of corporate governance in the international community must be brought down to the local political and judicial realities. Translating international corporate governance initiatives into clear and enforceable rights for creditors and shareholders that incorporate these constraints will be difficult but necessary. Bankruptcy law and corporate law reform need to be politically feasible and enforceable. Legal reforms should be complemented with carefully drafted judicial reforms, as well as market-based mechanisms that foster a culture of corporate governance.
Identification of large masses of citrus fruit and rice fields in eastern Spain
There are no author-identified significant results in this report
Vertical velocities from proper motions of red clump giants
We derive the vertical velocities of disk stars in the range of
Galactocentric radii of R=5-16 kpc within 2 kpc in height from the Galactic
plane. This kinematic information is connected to dynamical aspects in the
formation and evolution of the Milky Way, such as the passage of satellites and
vertical resonance and determines whether the warp is a long-lived or a
transient feature.
We used the proper motions of the PPMXL survey, correcting of systematic
errors with the reference of quasars. From the color-magnitude diagram K versus
(J-K) we selected the standard candles corresponding to red clump giants and
used the information of their proper motions to build a map of the vertical
motions of our Galaxy. We derived the kinematics of the warp both analytically
and through a particle simulation to fit these data. Complementarily, we also
carried out the same analysis with red clump giants spectroscopically selected
with APOGEE data, and we predict the improvements in accuracy that will be
reached with future Gaia data.
A simple model of warp with the height of the disk z_w(R,phi)=gamma (R-R_sun)
sin(phi-phi_w) fits the vertical motions if d(gamma)/dt/gamma=-34+/-17
Gyr^{-1}; the contribution to d(gamma)/dt comes from the southern warp and is
negligible in the north. The vertical motion in the warp apparently indicates
that the main S-shaped structure of the warp is a long-lived feature, whereas
the perturbation that produces an irregularity in the southern part is most
likely a transient phenomenon. With the use of the Gaia end-of-mission products
together with spectroscopically classified red clump giants, the precision in
vertical motions can be increased by an order of magnitude at least.Comment: Accepted for publication in A&A. arXiv admin note: text overlap with
arXiv:1402.355
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