Results 41 to 50 of about 1,896,797 (391)
Work, Energy, and Efficiency of a Recurve Bow
The shooting of a recurve bow was varied in two ways, changing draw distance and string length, to determine the relationship between work done in drawing the bowstring and the resulting kinetic energy of the arrow.
Sedthasard Kasetcharoenkit+1 more
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A new solid phase microextraction (SPME)-Arrow method was evaluated for the analysis of volatile compounds in kanari-aekjeot, a Korean traditional salt–fermented sand lance sauce, and compared it to the standard headspace–SPME method. Factors observed to
Nho-Eul Song+4 more
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AMS LaTeX file, 22 pages; added content, submitted to Foundations of ...
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In this contribution we present arbitrary arrow update model logic (AAUML). This is a dynamic epistemic logic or update logic. In update logics, static/basic modalities are interpreted on a given relational model whereas dynamic/update modalities induce transformations (updates) of relational models.
Wiebe van der Hoek+3 more
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We believe the following three ingredients are enough to explain the mystery of the arrow of time: (1). equations of dynamics of gas molecules, (2). chaotic instabilities of the equations of dynamics, (3). unavoidable perturbations to the gas molecules. The level of physical rigor or mathematical rigor that can be reached for such a theory is unclear.
Hong Yang, Y. Charles Li
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ЗАСТОСУВАННЯ АВТОМАТИЧНИХ СТРІЛОК ТРОЛЕЙБУСУ ЯК ДЕТЕКТОРІВ В СИСТЕМАХ СВІТЛОФОРНОГО АВТОРЕГУЛЮВАННЯ
Для удосконалення світлофорного регулювання пропонується пристрій з пасивним датчиком, що передає сигнал про приближення до перехрестя тролейбусу та напрям його подальшого руху на дорожній ...
V. E. Trushevsky
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Quantum gravity, the initial low entropy state of the Universe, and the problem of time are interlocking puzzles. In this article, we address the origin of the arrow of time from a cosmological perspective motivated by a novel approach to quantum ...
Ashtekar+21 more
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The Thermodynamical Arrow and the Historical Arrow; Are They Equivalent? [PDF]
In this paper, the relationship between the thermodynamic and historical arrows of time is studied. In the context of a simple combinatorial model, their definitions are made more precise and in particular strong versions (which are not compatible with time symmetric microscopic laws) and weak versions (which can be compatible with time symmetric ...
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Although the impact of post-acute COVID-19 syndrome (PACS) on patients and public health is undeniably significant, its etiology remains largely unclear. Much research has been conducted on the pathophysiology, shedding light on various aspects; however,
Alex Malioukis+3 more
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Viral copy-number (VCN) assay is a powerful, effective method to quantify toxicity, cellular kinetics, and durability of virus-modified cell therapy products. The qualification and validation of assay requires reference control.
Raymond Wu+3 more
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