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History of the Potsdam, Seddin and Niemegk geomagnetic observatories – Part 2: Seddin [PDF]
History of Geo- and Space Sciences, 2023 The measurement series of the three geomagnetic observatories Potsdam, Seddin and Niemegk spans 130 years, starting in 1890. It is one of the longest, almost uninterrupted series of recordings of the Earth's magnetic field.
H.-J. Linthe
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History of the Potsdam, Seddin and Niemegk geomagnetic observatories – Part 1: Potsdam [PDF]
History of Geo- and Space Sciences, 2023 The measurement series of the three geomagnetic observatories Potsdam, Seddin and Niemegk spans more than 130 years, starting in 1890. It is one of the longest, almost uninterrupted series of recordings of the Earth's magnetic field.
H.-J. Linthe
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Calculation Method for Dynamic Stiffness of Multispan Overhead Transmission Lines
IEEE Access, 2022 The dynamic motion of a span is coupled to the other spans in transmission lines. From the continuity conditions, force equilibrium conditions, and dynamical equations of every span conductor and insulator string, a close-form expression for the dynamic ...
Lv Zhongbin +6 more
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Free vibration analysis of transmission lines based on the dynamic stiffness method [PDF]
Royal Society Open Science, 2019 An improved mathematical model used to study the coupling characteristic of the multi-span transmission lines is developed. Based on the solution method for single-span cable, an expression for the dynamic stiffness of two-span transmission lines with an
Xiaohui Liu, You Hu, Mengqi Cai
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The influence of railway vehicle modeling approach on the dynamic response of a bridge span [PDF]
Przegląd Komunikacyjny, 2019 The paper presents the results of numerical analysis and in-situ measurements of two railway bridge spans subjected to an action of moving vehicles.
Marek, Szafranski
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A Spanning Series Approach to Options [PDF]
Review of Asset Pricing Studies, 2014 This paper shows that Edgeworth expansions for option valuation are equivalent to approximating option payoffs using Hermite polynomials. Consequently, the value of an option is the value of an infinite series of replicating polynomials. The resulting formulas express option values in terms of skewness, kurtosis, and higher moments.
Steven L. Heston, Alberto G. Rossi
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Analytical formulas for prismatic continuous beams of equal spans
工程科学学报, 2023 Solving the deformation and internal force of a prismatic multispan continuous beam of equal spans is a fundamental and classic problem in the area of civil engineering.
Yi ZHOU +3 more
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Sensors, 2022 In this paper, a field study is carried out to monitor the natural frequencies of Malahide viaduct bridge which is located in the north of Dublin. The bridge includes a series of simply supported spans, two of which collapsed in 2009 and were replaced ...
Abdollah Malekjafarian +5 more
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Lipoadenoma of the Parathyroid Gland: Characterization of an Institutional Series Spanning 28 Years [PDF]
Endocrine Pathology, 2020 AbstractParathyroid lipoadenomas (PLAs) are rare tumors, and case descriptions are limited, < 80 to date. As a consequence, scarce information regarding the etiology of these enigmatic lesions is available. We searched our departmental pathology database for PLAs diagnosed between 1992 and 2020, reexamined the histology of each case, and recorded ...
C. Christofer Juhlin +4 more
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Classification of the space spanned by theta series and applications [PDF]
Proceedings of the American Mathematical Society, 2007 We determine a class of functions spanned by theta series of higher degree. We give two applications: A simple proof of the inversion formula of such theta series and a classification of skew-holomorphic Jacobi forms.
Choie, Y, Richter, OK
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