96,400 research outputs found
Register / bearbeitet von Holger Hansen
No full textREGISTER / BEARBEITET VON HOLGER HANSEN
Bibliotheca Germanorum erotica & curiosa (-)
Register / bearbeitet von Holger Hansen (Register) ([1])
Cover ( - )
Title page ([1])
Preface ([3])
A (5)
B (19)
C (40)
D (48)
E (58)
F (73)
G (85)
H (104)
I (122)
J (124)
K (129)
L (142)
M (160)
N (177)
O (186)
P (189)
Q (202)
R (202)
S (215)
T (244)
U (253)
V (258)
W (268)
X / Y (282)
Z (282
The significance of the Hansen Ideal space frame
No full textKnown and unknown properties of Hansen Ideal coordinates are summarized. It is shown that the ideal space frame is a general and necessary component of basic celestial mechanics and astrodynamics, as well as of any theory of motion. A typical consequence is the intimate correlation of the Hansen frame with the Lagrange constraint within the method of the variation of the parameters. The use of observations in the ideal frame may allow conclusions on the intergalactic fundamental coordinate system
A tool for analysing depth resolution in potential-field inversion: application to the Neapolitan Volcanic Area
No full textA careful management of the data errors in potential field inversion is crucial for obtaining reliable information about the source distribution with respect to depth. The Depth Resolution Plot introduced by Fedi, Hansen and Paoletti provides a convenient tool for this analysis: it allows a computational/visual analysis of how much the depth resolution in a potential-field inversion problem is influenced by the way the problem is discretized and regularized. Here we present a variant of the Depth Resolution Plot, called Approx Depth Resolution Plot, which is better suited for large-scale problems, and we employ it to study the retrievable depth resolution in the inversion of the gravity field of the Neapolitan Volcanic Area
Box D, Folder C: Diary of Joh. Hansen
No full textScanned from the original held as part of the German Settlers in South Australia Papers in Rare Books and Special Collections, Barr Smith Library.
The following accompanied the diary: Untitled photograph - man's portrait, 1900s? Untitled photograph – portrait (same man?) Untitled photograph - husband & wife 1900s? Verse on small piece of paper 1836 -by Hangaard The word ‘London’ appears and ‘Ostern’ (ie Easter) This and the follwing verses are perhaps farewell notes to Hansen on setting sail for Australia Verse (or note) on small piece of paper dated 1837, by T. Longbehn, Cismar Verse on small piece of paper dated 1839, by Laura Hagemann. The word ‘Norderfahrenstedt… ‘appears Verse on small piece of paper dated 1837, by B. Basilius Verse on small piece of paper dated 16 Febr. 1837, by F.H. Jochimsen Note on small piece of paper, undated, by P. Walter. Includes the words ‘Ostern 35’ and ‘Tondern’? ‘Auszüge aus einem Tagebuch’ from 11/9/1849 to 1/1/1851 (11 p.) Excerpts are from the diary (item 1 above) and are related to South Australia, landing and excursions, and end with a plan to set up an educational institution in SAThe diary begins in 1841 and seems to be the work of Joh. Hansen who resided in SA for a time and then moved to Victoria, becoming a jeweller and then a pastor, dying about 1915 (Information from Dr Lois Zweck, Lutheran Archives, Friends, Chair.) Contains entries about algebra, mathematics, music, philosophy etc. Inside the front cover is a flyer with a note in Van Abbe’s or Triebels writing: ‘from Rev, H. Larsen, Grovedale, Vic. Hansen via Mr. Roesler, 64 Addison Road, Warradale
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
Validation of the FACSCount AF system for determination of sperm concentration in boar semen
No full textA flow cytometric method has been developed for rapid determination of sperm concentration in semen from various mammalian species.* All cells containing DNA are stained with SYBR-14 or propidium iodide (PI) and sperm concentration is determined in relation to an internal standard of fluorescent microspheres ( beads). Satisfactory staining can be achieved within 2-3 min and the following flow cytometric analysis on the FACSCount AF System rapidly provides the user with a precise and accurate assessment of the sperm concentration. In this study, the FACSCount AF System and Sperm Counting Reagent ( BD Biosciences) was compared with microscopic counting using a Burker-Turk haemocytometer. In addition, sperm concentration was determined using the Corning 254 spectrophotometer which is used routinely by Danish artificial insemination stations for boars. The results show that the agreement between flow cytometry and microscopic counting is very high. The slope for the regression line was 1.12 (SE = 0.03) with an estimated intercept with the Y-axis of 22 x 10(6) sperm/ml (SE = 10 x 10(6) sperm/ml) and an estimated error of the model of 10 x 10(6) sperm/ml. For the spectrophotometer, the slope of the regression line was 1.09 (SE = 0.07) with an estimated intercept of 137 x 10(6) sperm/ml (SE = 25 x 10(6) sperm/ml). The average error made by the spectrophotometer was 55 x 10(6) sperm/ml. In addition, the results obtained using flow cytometry was highly repeatable ( CV = 2.7%) in comparison with the spectrophotometric method ( CV = 6.3%). These results indicate that the FACSCount AF System is a valuable tool for precise and accurate assessment of sperm concentration in boar semen and that use of this system may lead to production of more uniform insemination doses containing a specific number of sperm per dose
Evaluating Asset-Pricing Models Using The Hansen-Jagannathan Bound: A Monte Carlo Investigation
No full textWe conduct Monte Carlo experiments to examine whether the bound proposed by Hansen and Jagannathan (1991) is a useful device for evaluating asset pricing models. Specifically, we use recently developed statistical tests, which are based on a 'distance' between the model and the Hansen-Jagannathan bound, to compute the rejection rates of true models. We provide finite-sample critical values for asset pricing models with time separable preferences, and show how they depend upon nuisance parameters—risk aversion and the rate of time preference. Further, we show that the finite-sample distribution of the test statistic associated with the risk-neutral case is extreme, in the sense that critical values based on this distribution will deliver type I errors no larger than intended—regardless of risk aversion or the rate of time preference. Extending the analysis to accommodate other preferences, we show that in the state non-separable case, the small-sample distributions of the test statistics are influenced significantly by the degree of intertemporal substitution, but not by attitudes toward risk. For habit formation preferences, the small-sample distributions are strongly influenced by the habit parameter. However, the maximal-size critical values for time-separable preferences are appropriate for habit formation as well as state non-separable preferences. We conclude that with these critical values the HJ bound is indeed a useful evaluation device. We then use the critical values to evaluate three asset pricing models using U.S. data. We find evidence against the time-separable model and mixed evidence on the remaining two models.
A tool for analysing depth resolution in potential-field inversion
No full textA careful management of the ambiguities and errors in potential field inversion is crucial for obtaining
reliable information about the source distribution with respect to depth. In this paper we introduce a tool,
the ApproxDRP, which is based on an approximation of the singular vectors obtained by the iterative
Lanczos bidiagonalization algorithm. This tool allows a computational/visual analysis of how much the
depth resolution in a potential-field inversion problem is influenced by the way the problem is discretized
and regularized. Since the ApproxDRP is based on an iterative method, it is suitable for large-scale
problems. We show that when used in combination with a plot of the approximate SVD quantities, the
ApproxDRP may successfully show the limitations of depth resolution resulting from noise in the data.
This allows a reliable analysis of the retrievable depth information and effectively guides the user in
choosing the optimal number of iterations, for a given problem
Solution of Macromodels with Hansen-Sargent Robust Policies: Some Extensions
No full textWe summarize some methods useful in formulating and solving Hansen-Sargent robust control problems, and suggest extensions to discretion and simple rules. Matlab, Octave, and Gauss software is provided. We illustrate these extensions with applications to the term structure of interest rates, the time inconsistency of optimal monetary policy, the effects of expectations on the variances of inflation and output, and on whether central banks should make their forecasts public.robustness; model uncertainty; discretion; simple rules
Esichio terminato. Osservazioni sul volume IV (T-Ω) dell'edizione esichiana di Hansen-Cunningham
No full textThe edition of the Lexicon of Hesychius, IV (τ-ω) by P. A. Hansen and I. C. Cunningham is reviewed and carefully analyzed. The revision of the edition is based on an autoptic collation of the MS of the Lexicon, Marc. gr. 622. A few conjectures on difficult passages are offered at the end of the article
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