scholarly journals INTEGRATED ALGORITHM FOR COMPILINGAND ASSESSMENT OF DIRECT ROUTES RESTRICTIONS IN FREE ROUTE AIRSPACE OF UKRAINE

2021 ◽  
Vol 88 (3) ◽  
pp. 15-22
Author(s):  
Yuriy Chynchenko ◽  
Volodymyr Kharchenko

The article describes the principles of acceptability assignment for direct routes restrictions in free route airspace of Ukraine for publication in Route Availability Document and further use by the Integrated Initial Flight Plan Processing System of Eurocontrol. The algorithms of correct generation of direct routes restrictions for the selected issues in a horizontal and vertical plane were proposed. As a main decision criteriafor these algorithms were chosen the shortest distance to the state boundary (in a horizontal plane) and space attitude (location) of aircraft (in avertical plane).

2021 ◽  
pp. 1-12
Author(s):  
Tomotaka Saruya ◽  
Shuji Fujita ◽  
Ryo Inoue

Abstract Polycrystalline ice is known to exhibit macroscopic anisotropy in relative permittivity (ɛ) depending on the crystal orientation fabric (COF). Using a new system designed to measure the tensorial components of ɛ, we investigated the dielectric anisotropy (Δɛ) of a deep ice core sample obtained from Dome Fuji, East Antarctica. This technique permits the continuous nondestructive assessment of the COF in thick ice sections. Measurements of vertical prism sections along the core showed that the Δɛ values in the vertical direction increased with increasing depth, supporting previous findings of c-axis clustering around the vertical direction. Analyses of horizontal disk sections demonstrated that the magnitude of Δɛ in the horizontal plane was 10–15% of that in the vertical plane. In addition, the directions of the principal axes of tensorial ɛ in the horizontal plane corresponded to the long or short axis of the elliptically elongated single-pole maximum COF. The data confirmed that Δɛ in the vertical and horizontal planes adequately indicated the preferred orientations of the c-axes, and that Δɛ can be considered to represent a direct substitute for the normalized COF eigenvalues. This new method could be extremely useful as a means of investigating continuous and depth-dependent variations in COF.


2019 ◽  
pp. 17-36
Author(s):  
Ana-Teodora Kurkina

State Boundaries in the Minds of Men: Bulgarian Intellectuals Dividing the Balkans in the mid-19th CenturyThe correlation between the political imagination of intellectuals and their social ties is rarely linked to the state-building projects they produce. In most cases, political and social realities in regions do not coincide with the state boundaries sketched by intellectuals. Nevertheless, they do reflect the ideas of a narrow stratum of interconnected individuals that are easy to target and follow.The current text introduces and analyses the individual ties that laid the foundation for state-building creativity in the context of the mid-19th century empires. It suggests that elites occupy a different place in the social hierarchy of the forming nations, creating their preliminary state boundaries mostly based on their own interconnections and personal considerations. While their plans do not necessarily succeed, they usually reflect the nature of the debates and concerns of a relatively small group that conceives them.The case of the Bulgarian public actors in the mid-19th century offers a concentrated picture of a predominantly mobile intellectual elite engaged in the division of the Balkans. That elite included not only revolutionary thinkers like Georgi Rakovski, but also poets and journalists like his younger contemporaries, Hristo Botev and Lyuben Karavelov. Following their writings, one can produce a picture illustrating the correlation between state boundary-making and the imagination of intellectuals. While the Bulgarian example is easy to follow, it is not unique. The hypothesis can be transferred to other cases and other elites engaged in state-building debates, especially those isolated from the reality of their target group due to their position in the social hierarchy, emigrant status or conflicting affiliations. Государственные границы в сознании людей: деление Балканов болгарскими интеллектуалами в середине 19 века Корреляция между политическим воображением интеллектуалов и их социальными связями редко ассоциируется с проектами по конструированию государства, которые они создают. В большинстве случаев, политические и социальные реалии в различных регионах не совпадают с государственными границами, начертанными полити- ческими активистами. Они отражают идеи узкой прослойки контак- тирующих индивидумов, чьи действия легко увидеть и проследить.Данный текст рассматривает и анализирует личные связи политических активистов, которые заложили основы проектов по конструированию государства в контексте империй середины 19 века. Автор утверждает, что интеллектуальные элиты занимали особое место в социальной иерархии формирующихся наций, создавая предварительные государственные границы, базируя их на своих личных связях и идеях. Их планы не венчались успехом во всех случаях, однако, они отражали природу дебатов и интересов маленькой группы, которая их выражала, но никак не всего населения.Случай болгарских политических активистов середины 19 века представляет собой пример преимущественно мобильной элиты, вовлеченной в раздел Балканского полуострова. Эта элита включала в себя не только революционных мыслителей как Георгий Раковский, но также поэтов и публицистов как его младшие современники Христо Ботев и Любен Каравелов. Анализируя оставленные ими письменные документы, можно воспроизвести модель, иллюстрирующую корреляцию между конструированием государственных границ и политическим воображением интеллектуалов. Болгарский пример предлагает достаточное количество материала для проведения исследования, однако, он далеко не уникален. Данная система может буть перенесена на другие случаи, в которых фигурируют элиты, причастные к конструированию государственных границ. Наиболее подробно данная модель иллюстрирует деятельность представителей элиты, которые находятся в изоляции от своей целевой группы из-за своего положения в социальной иерархии, статуса эмигранта или противоречивых идентичностей. Granice państwowe w umysłach ludzkich: dzielenie Bałkanów przez bułgarskich intelektualistów w połowie XIX wiekuKorelacja między polityczną wyobraźnią intelektualistów a ich więziami społecznymi rzadko jest kojarzona z tworzonymi przez nich projektami budowy państwa. W większości przypadków regionalne realia polityczne nie pokrywają się z granicami państwowymi wyznaczonymi przez działaczy politycznych. Odzwierciedlają one idee wąskiej warstwy wzajemnie powiązanych jednostek, których działania można łatwo dostrzec i prześledzić.Niniejszy tekst analizuje osobiste powiązania aktywistów politycznych, którzy stworzyli podstawy dla projektów budowy państw w epoce imperiów połowy XIX wieku. Autorka twierdzi, że elity intelektualne zajmowały szczególne miejsce w społecznej hierarchii formujących się narodów, tworząc wstępne granice państwowe w oparciu o osobiste więzi i idee. Ich plany nie we wszystkich przypadkach były zwieńczone sukcesem, lecz odzwierciedlały specyfikę debat i interesów małej grupy, która je wyrażała, a nie całej ludności.Przypadek bułgarskich aktywistów politycznych połowy XIX wieku stanowi przykład mobilnej elity zaangażowanej w podział Półwyspu Bałkańskiego. W skład tej elity weszli nie tylko rewolucyjni myśliciele jak Georgi Rakovski, ale także poeci i publicyści jak Christo Botev i Luben Karavelov. Analizując pisane przez nich dokumenty, można odtworzyć model ilustrujący korelację pomiędzy konstruowaniem granic, a polityczną wyobraźnią intelektualistów. Bułgarski przykład oferuje wystarczającą ilość materiału do badania, lecz jest daleki od bycia wyjątkowym. Model ten może być przeniesiony do innych przypadków, w których biorą udział elity zaangażowane w konstruowanie granic państwowych, jednocześnie znakomicie ilustruje działalność przedstawicieli elit, którzy są odizolowani od grupy docelowej ze względu na sprzeczną z nią tożsamość, status emigranta lub pozycję w hierarchii społecznej.


2019 ◽  
Vol 10 (1) ◽  
pp. 15-20
Author(s):  
József András ◽  
József Kovács ◽  
Endre András ◽  
Ildikó Kertész ◽  
Ovidiu Bogdan Tomus

Abstract The bucket wheel excavator (BWE) is a continuous working rock harvesting device which removes the rock by means of buckets armoured with teeth, mounted on the wheel and which transfers rock on a main hauling system (generally a belt conveyor). The wheel rotates in a vertical plane and swings in the horizontal plane and raised / descended in the vertical plane by a boom. In this paper we propose a graphical-numerical method in order to calculate the power and energy requirements of the main harvesting structure (the bucket wheel) of the BWE. This approach - based on virtual models of the main working units of bucket wheel excavators and their working processes - is more convenient than those based on analytical formulas and simplification hypotheses, and leads to improved operation, reduced energy consumption, increased productivity and optimal use of available actuating power.


1999 ◽  
Vol 202 (12) ◽  
pp. 1603-1623 ◽  
Author(s):  
D.L. Jindrich ◽  
R.J. Full

Remarkable similarities in the vertical plane of forward motion exist among diverse legged runners. The effect of differences in posture may be reflected instead in maneuverability occurring in the horizontal plane. The maneuver we selected was turning during rapid running by the cockroach Blaberus discoidalis, a sprawled-postured arthropod. Executing a turn successfully involves at least two requirements. The animal's mean heading (the direction of the mean velocity vector of the center of mass) must be deflected, and the animal's body must rotate to keep the body axis aligned with the heading. We used two-dimensional kinematics to estimate net forces and rotational torques, and a photoelastic technique to estimate single-leg ground-reaction forces during turning. Stride frequencies and duty factors did not differ among legs during turning. The inside legs ended their steps closer to the body than during straight-ahead running, suggesting that they contributed to turning the body. However, the inside legs did not contribute forces or torques to turning the body, but actively pushed against the turn. Legs farther from the center of rotation on the outside of the turn contributed the majority of force and torque impulse which caused the body to turn. The dynamics of turning could not be predicted from kinematic measurements alone. To interpret the single-leg forces observed during turning, we have developed a general model that relates leg force production and leg position to turning performance. The model predicts that all legs could turn the body. Front legs can contribute most effectively to turning by producing forces nearly perpendicular to the heading, whereas middle and hind legs must produce additional force parallel to the heading. The force production necessary to turn required only minor alterations in the force hexapods generate during dynamically stable, straight-ahead locomotion. A consideration of maneuverability in the horizontal plane revealed that a sprawled-postured, hexapodal body design may provide exceptional performance with simplified control.


1988 ◽  
Vol 32 (19) ◽  
pp. 1424-1428
Author(s):  
William P. Janson ◽  
Gloria L. Calhoun

Past studies involving oculomotor responses have typically been limited to refixations along the horizontal plane, small sample sizes, and little data pertaining to head movement. The study reported herein addresses these data voids by collecting both eye and head latency data for refixations in the horizontal and vertical planes. The subjects' task was to perform a central manual tracking task while periodically responding to a verbal command to classify a target on one of four peripheral monitors. Two targets were displayed along the horizontal plane and two along the vertical plane. Results from 620 trials indicated similar trends for the eye and head latency across all four monitor locations, suggesting no significant differences in eye or head latency as a function of target plane.


2020 ◽  
Vol 73 (8) ◽  
pp. 1162-1172 ◽  
Author(s):  
Carlotta Lega ◽  
Zaira Cattaneo ◽  
Noemi Ancona ◽  
Tomaso Vecchi ◽  
Luca Rinaldi

Humans show a tendency to represent pitch in a spatial format. A classical finding supporting this spatial representation is the Spatial–Musical Association of Response Codes (SMARC) effect, reflecting faster responses to low tones when pressing a left/bottom-side key and to high tones when pressing a right/top-side key. Despite available evidence suggesting that the horizontal and vertical SMARC effect may be differently modulated by instrumental expertise and musical timbre, no study has so far directly explored this hypothesis in a unified framework. Here, we investigated this possibility by comparing the performance of professional pianists, professional clarinettists and non-musicians in an implicit timbre judgement task, in both horizontal and vertical response settings. Results showed that instrumental expertise significantly modulates the SMARC effect: whereas in the vertical plane a comparable SMARC effect was observed in all groups, in the horizontal plane the SMARC effect was significantly modulated by the specific instrumental expertise, with pianists showing a stronger pitch–space association compared to clarinettists and non-musicians. Moreover, the influence of pitch along the horizontal dimension was stronger in those pianists who started the instrumental training at a younger age. Results also showed an influence of musical timbre in driving the horizontal, but not the vertical, SMARC effect, with only piano notes inducing a pitch–space association. Taken together, these findings suggest that sensorimotor experience due to instrumental training and musical timbre affect the mental representation of pitch on the horizontal space, whereas the one on the vertical space would be mainly independent from musical practice.


1993 ◽  
Vol 86 (2) ◽  
pp. 166-167
Author(s):  
John F. Lamb

Among the objects in the Ramses II exhibition at Fair Park in Dallas in 1989 were two tools from the tomb of Sen-nedjem, one of Ramses II's workmen. One was a level for determining the horizontal plane, the other was a plumb level for determining the vertical plane.


2014 ◽  
Vol 80 (6) ◽  
pp. 869-876 ◽  
Author(s):  
Yoshifumi Saitou ◽  
Osamu Ishihara

A collective behavior of dust particles in a complex plasma with a magnetic field (up to 4 kG) is investigated. Dust particles form a dust disk which is rotating in a horizontal plane pushed by ions rotating with the E × B drift as a trigger force. The thickness of the disk is determined by controlling the experimental conditions. The disk rotates in a horizontal plane and forms a two-dimensional thin structure when the pressure pAr is relatively high. The dust particles are ejected from near the disk center and form a rotation in the vertical plane and, hence, forms a helical vortex when the disk is thick for relatively low pAr. The reason the dust disk has the different thickness is due to the neutral pressure. Under a higher (lower) neutral gas pressure, the disk becomes two (three) dimensional due to the influence of the neutral drag force.


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