Enhanced heat transfer tubes (EHTT) with segmented mesh-conical frustums are considered. Tube diameter and frustum apex angle are fixed as 20 mm and 60o, respectively. The height ratio of frustum and sliced part are set as a golden ratio (1.618). Laminar thermal-hydraulic performance and effects of some parameters, e.g., bottom frustum diameter and pitch, are numerically simulated. The equal equiv

This paper proposes a new method for an automatic detection of a resolution of a scale or a ruler with graduation marks in the shoeprint images. The method creates a vector of the correlations estimated from the co-occurrence matrices for every row in a shoeprint image. The scale resolution is estimated from maxima in Fourier spectrum of the correlations’ vectors. The proposed method is evaluated

We investigate whether acquiring more primary education has long-term effects on risk-taking behavior in financial markets. Using exogenous variation in education from a compulsory schooling change combined with wealth data for the Swedish population, we estimate the effect of education on stock market participation and on the share of financial wealth invested in stocks, conditional on participat

This article provides an overview of different formal models that could be of interest to epistemologists interested in assertion. It also says something about where they fit into the general picture of assertion as a phenomenon involving both an asserter and an assertee. The author’s perspective is that of the philosopher rather than that of the logician. A semiformal level of description is empl

The Soviet canonisation of Abai, the nineteenth-century Kazakh poet and enlightener became a problematic theme for local intellectuals in the 2010s after the Occupy Abai movement in Moscow raised concerns over the heritage of Abai as a Sovietised canon and as an independent non-Soviet thinker. In 2012 oppositional leaders in Russia occupied Abai monument in Moscow and the leader of the opposition

The inclusive cross-section for the associated production of a W boson and top quark is measured using data from proton-proton collisions at s=13 TeV. The dataset corresponds to an integrated luminosity of 3.2 fb−1, and was collected in 2015 by the ATLAS detector at the Large Hadron Collider at CERN. Events are selected requiring two opposite sign isolated leptons and at least one jet; they are se

In this paper, we consider capacities of single-antenna terminals communicating to large antenna arrays that are deployed on surfaces. That is, the entire surface is used as an intelligent receiving antenna array. Under the condition that the surface area is sufficiently large, the received signal after matched-filtering (MF) can be well approximated by an intersymbol interference (ISI) channel wh