Dispersive calculation of the massless multi-loop sunrise diagram [PDF]
, 2006 The massless sunrise diagram with an arbitrary number of loops is calculated in a simple but formal manner. The result is then verified by rigorous mathematical treatment. Pitfalls in the calculation with distributions are highlighted and explained.
A. Aste +25 more
core +2 more sources
Elliptic polylogarithms and iterated integrals on elliptic curves. II. An application to the sunrise integral [PDF]
Physical Review D, 2017 We introduce a class of iterated integrals that generalize multiple polylogarithms to elliptic curves. These elliptic multiple polylogarithms are closely related to similar functions defined in pure math- ematics and string theory.
Johannes Broedel +3 more
semanticscholar +1 more source
Ein Vergleich der Häufigkeitsverteilungen der Stabilitätsklassifikationen nach Klug/Manier und Uhlig
Meteorologische Zeitschrift, 1992 Aus den stündlichen synoptischen Beobachtungen der Station Leipzig-Schkeuditz wurden die Stabilitätsgrade nach den Vorschriften von Klug/Manier und Uhlig für 1 Jahr bestimmt.
B. Kirchner
doaj +1 more source
Iufaa jako kněz slunečního boha: z východní stěny pohřební komory kněze Iufay v Abúsíru [PDF]
Pražské Egyptologické Studie, 2020 This study deals with the annotated version of the text known as König als Sonnenpriester inscribed on the arch of the eastern wall of the burial chamber of Iufaa.
Jiří Janák +2 more
doaj
Electrodynamics of the equatorial F-region ionosphere during pre-sunrise period [PDF]
Annales Geophysicae, 2009 The electrodynamics of the pre-sunrise equatorial F-region is investigated using HF Doppler radar and digital ionosonde. The observations are limited to those days for which the radar probing frequency is below the foF2 value.
S. R. Prabhakaran Nayar +8 more
doaj +1 more source
A multi-optimization model for the design of hydrogen supply chains [PDF]
E3S Web of Conferences, 2020 This paper presents a multi-objective optimization models which operating as time processes (2025-2035) for the design of hydrogen supply chain. The feasibility of the models are illustrated through a detail case study of Dalian, China.
Li Miao +4 more
doaj +1 more source
A formula for the number of days between the winter solstice and the latest sunrise [PDF]
, 2002 A simple closed-form expression for the number of days between the winter solstice and the latest sunrise is derived. Formulas for the summer solstice and the sunset are derived as well.
di Cicco D., Matthias Reinsch
core +2 more sources
Remote Sensing, 2020 The daytime plasma density disturbances in the low-latitude ionosphere, referred to as plasma irregularities, mainly occur during the nighttime and are an unusual phenomenon.
Weihua Luo +4 more
semanticscholar +1 more source
AJOG Global Reports, 2022 BACKGROUND: Hypercoagulability frequently complicates moderate or severe COVID-19 and can result in venous thromboembolism, arterial thrombosis, or microvascular thrombosis. Disseminated intravascular coagulation, however, is uncommon.
Jeanette Carpenter, MD +4 more
doaj +1 more source
The analytic value of the sunrise self-mass with two equal masses and the external invariant equal to the third squared mass [PDF]
, 2002 We consider the two-loop self-mass sunrise amplitude with two equal masses $M$ and the external invariant equal to the square of the third mass $m$ in the usual $d$-continuous dimensional regularization.
Berends +9 more
core +2 more sources