162,015 research outputs found
[Report to Chief J. E. Curry, by an unknown author #1]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
An engineering methodology for kite design
No full textKites have seen substantial development in the last 10 years, going from mostly toys to high-performance sports-related equipment for e.g. kite surfing. The design process of these kites, however, is mostly a trial-and-error affair. Ten years after the sports-related kite revolution a new development is is emerging: Industrial applications for kites. Systems to propel ships and generate sustainable energy are now under development worldwide at over 40 companies and institutes. These new industrial applications will put strickter and more complex requirements on these kites. The current trial-and-error approach to the design of kites will not suffice. In this thesis a different design methodology is proposed. This methodology leans on three pillars. The first pillar is "Knowledge". As it turns out, there is still a lot unknown about the behavior of kites. This thesis further develops that knowledge. The seccond pillar is "Simulation". Nowadays, a large number of prototypes are produced and tested. So many in fact, that many designers do not even have the time to test them all. With the advance of complex industrial kites, this situation is expected to escalate. The capability of virtually testing kites will shrink the prototype phase into more managable proportions. Furthermore, it will contribute to the understanding of kites as well. This thesis proposes a number of models to simulate kites on a conventional desktop computer. These models include both rigid-body and multi-body models. The latter is capable of simulating a kite including its extreme flexibility. The third and last pillar is "Measurement". Controlled and reproducable measurements are essential for validation and evaluation. The thesis closes with a number of case studies which show the advantages and opportunities of this methodology.ASSETAerospace Engineerin
Murder on the mountain: author talk with Peter J. Wosh
No full textAuthor talk by Peter J. Wosh on May 5th, 2022, on his book, "Murder on the Mountain: crime, passion, and punishment in gilded age New Jersey.
Mr. Melvin J. Collier, RWWL AUC, June 2011
No full textThis video is a conversation with Mr. Melvin J. Collier. Mr. Collier talks about his book, "From Mississippi to Africa: A Journey of Discovery". Daniel Le, AUC Woodruff Library, is the interviewer
Tethered "kiteplane" design for the Laddermill project
No full textThe Laddermill is an innovative concept for generating energy from wind using large kite-like wings on a tether. The wings are able to fly in both the regime of airplanes and kites. We therefore call these structures "kiteplanes". By providing a recurring motion with a large lift during ascending and a lower lift during descending, energy can be generated. The Laddermill is currently under development at the Faculty of Aerospace Engineering at the Delft University of Technology. This paper presents the design and testing of a 3 meter span scaled model of a laddermill kiteplane. First, an introduction to the laddermill will be given. Then the sail wing will be outlined. Both aerodynamic and structural aspects will be addressed. The next section deals with the stability of the kiteplane. The eigenvalues are determined which govern the motions of the kiteplane. After the theory, the paper will go into the building of the kiteplane and the flight testing. The conclusion will go into the relevance of this wing concept to the laddermill and the eventual generation of sustainable energy.Aerospace Engineerin
A Tripartite Post-Recession Rebalancing
No full textIn this latest Advance & Rutgers Report, entitled “A Tripartite Post-Recession Rebalancing,” Dean James W. Hughes and Professor Joseph J. Seneca deliver an incisive assessment of the current market conditions and obstacles in the path of our economic recovery. They offer a statistical cautionary tale that the private and public sector need to hear and acknowledge in order for the economy to make continued progress.This report was published as Issue Paper Number 7, November 2011, in Advance & Rutgers Report
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
Kitesailing: Improving system performance and safety
No full textIn the world of high performance sailing people are using state of the art technology to push the limits in speed and performance. The introduction of the sport kitesurfing has shown the power that kites can generate. It has meant a revolution in the world of surfing. Kitesurfing only exists since 15 years and began to expand around the world only since the year 2000. Already in 2008 the 50 knots speed sailing barrier has been broken by a kite surfer being the first sailing system to do so. This is less than ten years after the sport started to become public in the world. This illustrates the potential in performance for the use of kites.Kites also offer the possibility of a revolution in other fields like sailing where systems are currently developed to provide propulsion for commercial vessels to save fossil fuels. Kite systems are also developed for clean energy production where wind energy at high altitude is harvested. These High Altitude Wind Power systems can also be applied to ships offering the possibility of sailing at a course of 0 degrees into the wind on pure wind energy. In this research the kite system is evolved such that the performance and safety is increased for kitesailing and energy production.Aerospace EngineeringAerospace for Sustainable Engineering and Technolog
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