Prospects for improvement of mining machines' cutting picks

Advantages and disadvantages of tangential rotary picks widely used in mining machines are described. A prospective line of picks design improvement has been found based on a change in the principle of destruction. A new design of blade-type cutting picks with a reinforcing tip is proposed having extended service life, requiring less energy for rock breaking, reducing yield of fine dust and increasing the grade of the mined coal

Electromechanically tunable dielectric microwave devices

High-tunable low-loss microwave dielectric devices are designed by electromechanical alteration in the configuration of device components. Specifically, this device consists of dielectric and metallic parts with an air gap between them. The gap location provides the largest perturbation in the electromagnetic field and a mini-actuator controls the device. Through experiments conducted, we test and apply the high-tunable dielectric resonators and filters as well as wide-band low-loss phase shifters

Zipf's Law : Balancing signal usage cost and communication efficiency

Copyright: © 2015 Salge et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are creditedWe propose a model that explains the reliable emergence of power laws (e.g., Zipf's law) during the development of different human languages. The model incorporates the principle of least effort in communications, minimizing a combination of the information-Theoretic communication inefficiency and direct signal cost. We prove a general relationship, for all optimal languages, between the signal cost distribution and the resulting distribution of signals. Zipf's law then emerges for logarithmic signal cost distributions, which is the cost distribution expected for words constructed from letters or phonemes. Copyright:Peer reviewedFinal Published versio

Environmental Improvement Of Opencast Mining

Existing classifications of waste dumps in the quarries are given and their phenomenological nature is clarified. The need to identify the essence of the term "dump" is shown as well as the idea of "dump" as an artificial formation with everted and mixed rocks distanced from the quarry. Essential classification of man-made rock formations in quarries is developed. Characteristic of variations of man-made waste formations in quarries is developed. To reduce harmful effects of open-pit mining, dumps should be substituted with strat-lays - man-made structures relevant to natural stratification of litho-substances. Construction of strat-lays would improve ecological and technological culture of open cast mining

Environmental Improvement Of Opencast Mining

Existing classifications of waste dumps in the quarries are given and their phenomenological nature is clarified. The need to identify the essence of the term "dump" is shown as well as the idea of "dump" as an artificial formation with everted and mixed rocks distanced from the quarry. Essential classification of man-made rock formations in quarries is developed. Characteristic of variations of man-made waste formations in quarries is developed. To reduce harmful effects of open-pit mining, dumps should be substituted with strat-lays - man-made structures relevant to natural stratification of litho-substances. Construction of strat-lays would improve ecological and technological culture of open cast mining

RoboCup 2D Soccer Simulation League: Evaluation Challenges

We summarise the results of RoboCup 2D Soccer Simulation League in 2016 (Leipzig), including the main competition and the evaluation round. The evaluation round held in Leipzig confirmed the strength of RoboCup-2015 champion (WrightEagle, i.e. WE2015) in the League, with only eventual finalists of 2016 competition capable of defeating WE2015. An extended, post-Leipzig, round-robin tournament which included the top 8 teams of 2016, as well as WE2015, with over 1000 games played for each pair, placed WE2015 third behind the champion team (Gliders2016) and the runner-up (HELIOS2016). This establishes WE2015 as a stable benchmark for the 2D Simulation League. We then contrast two ranking methods and suggest two options for future evaluation challenges. The first one, "The Champions Simulation League", is proposed to include 6 previous champions, directly competing against each other in a round-robin tournament, with the view to systematically trace the advancements in the League. The second proposal, "The Global Challenge", is aimed to increase the realism of the environmental conditions during the simulated games, by simulating specific features of different participating countries.Comment: 12 pages, RoboCup-2017, Nagoya, Japan, July 201

Characteristi Features and Types of Use of Mortgage-Backed Bonds in European States

Прокопенко В. Ю. Особенности и разновидности применения облигаций с ипотечным покрытием в европейских государствах / В. Ю. Прокопенко, И. О. Святокум // Проблеми економіки. - 2015. - № 1. - С. 280-284.В статье рассматриваются ипотечные инструменты, применяемые в экономиках европейских стран. Проанализированы научные исследования в области европейского ипотечного рынка. Рассматривается сущность и отличительные черты облигаций с ипотечным покрытием – типа ипотечных ценных бумаг, характерного для европейского рынка. Рассмотрены характерные признаки облигаций с покрытием. Кроме того, анализируются основные модели эмиссии данных ценных бумаг, их преимущества и недостатки. Охарактеризованы подходы к построению моделей эмиссии ипотечных ценных бумаг. В статье также рассмотрен ряд существенных рисков, связанных с деятельностью эмитентов ипотечных ценных бумаг.The artile deals with mortgage instruments used in European economies. Scientii research focusing on the European mortgage market was analyzed. The artile also considers the substance and distictie features of mortgagebacked bonds – a mortgage-backed security type characteristi of the Euro - pean market. The artile discusses characteristi features of covered bonds, analyzes the basic emission models for such securitis, their strengths and weaknesses. The work describes approaches to constructin of models of mortgage-backed security emission and singles out a series of essentil risks linked to operatins of issuers of mortgage-backed securitis.У статті розглядаються іпотечні інструменти, що застосовуються в економіках європейських країн. Проаналізовано наукові дослідження в галузі європейського іпотечного ринку. Розглядається сутність і відмінні риси облігацій з іпотечним покриттям – типу іпотечних цінних паперів, характерних для європейського ринку. Розглянуті характерні признаки облігацій с покриттям. Крім того, аналізуються основні моделі емісії даних цінних паперів, їх переваги та недоліки. Охарактеризовані підходи до побудови моделей емісії іпотечних цінних паперів. У статті також виокремленні ряд суттєвих ризиків, пов’язаних з діяльністю емітентів іпотечних цінних паперів

Smart systems as one of the main components of energy for sustainable development

Розглянуто особливості реалізації концепції Smart Grid за кордоном. Наведено науково-технічні досягнення спеціалістів Національного технічного університету України «Київський політехнічний інститут» у сфері інтелектуалізації електроенергетики. Охарактеризовано основні напрямки побудови Smart систем як однієї із основних складових сталого розвитку енергетики.The features of the concept of Smart Grid abroad. The scientific and technological achievements of specialists of the National Technical University of Ukraine "Kyiv Polytechnic Institute" in the intellectualization of electricity. The basic directions of building Smart Systems as one of the key components of sustainable energy.Рассмотрены особенности реализации концепции Smart Grid за рубежом. Приведены научно-технические достижения специалистов национального технического университета Украины «Киевский политехнический институт» в сфере интеллектуализации электроэнергетики. Охарактеризованы основные направления построения Smart систем как одного из основных составляющих устойчивого развития энергетики

Genome-wide association study of the modified Stumvoll Insulin Sensitivity Index identifies BCL2 and FAM19A2 as novel insulin sensitivity loci.

Genome-wide association studies (GWAS) have found few common variants that influence fasting measures of insulin sensitivity. We hypothesized that a GWAS of an integrated assessment of fasting and dynamic measures of insulin sensitivity would detect novel common variants. We performed GWAS of the modified Stumvoll Insulin Sensitivity Index (ISI) within the Meta-Analyses of Glucose and Insulin-related traits Consortium. Discovery was performed in 16,753 individuals, and replication was attempted for the 23 most significant novel loci in 13,354 independent individuals. Association with ISI was tested in models adjusted for age, sex, body mass index (BMI) and in a model ("Model 3") analyzing the combined influence of the genotype effect adjusted for BMI and the interaction effect between the genotype and BMI on ISI. In Model 3, three variants reached genome-wide significance: rs13422522 (NYAP2, P=8.87 ×10(-11)), rs12454712 (BCL2, P=2.7×10(-8)) and rs10506418 (FAM19A2, P=1.9×10(-8)). The association at NYAP2 was eliminated by conditioning on the known IRS1 insulin sensitivity locus; the BCL2 and FAM19A2 associations were independent of known cardio-metabolic loci. In conclusion, we identified two novel loci and replicated known variants associated with insulin sensitivity. Further studies are needed to clarify the causal variant and function at the BCL2 and FAM19A2 loci