scholarly journals Assessment of Plantations Ornamentality

2020 ◽  
pp. 98-110
Author(s):  
O.S. Zalyvskaya ◽  
◽  
N.A. Babich
Keyword(s):  
Total Duration ◽  
Flowering Duration ◽  
Large Cities ◽  
The Road ◽  
Physocarpus Opulifolius ◽  
Crown Characteristics ◽  
Color Scheme ◽  
Urban Conditions ◽  
High Degree ◽  
Sanitary State

The issue of biodiversity and sustainability of tree and shrub plantations in large cities is relevant both in Russia and abroad. Their ornamentality is an indicator of adaptation and ability to fully perform their functions. It is relevant to create plantations, decorative throughout the calendar year. The research purpose is to develop a scale for assessing the ornamentality of plantations in urban conditions. This procedure is based on scoring the following characteristics of green spaces: sanitary state; decorative qualities of trunk and crown; characteristics of flowering (according to duration, abundance, color and size of flowers); characteristics of leafing (variety of summer and autumn colors, total duration of leafing). There are 5 most common types of plantations: single-breed arboreal; single-breed shrub; mixed wood; mixed shrub; and woodshrub groups, in which the research was carried out. A mixed group of blue spruce (Picea pungens Eng.), bird cherry (Padus racemosa Lam.) and Hungarian lilac (Syringe josikae Jacg.) has the highest degree of ornamentality in northern conditions (24.8 points). A single-breed plantation of common ninebark (Physocarpus opulifolius L.) has the least ornamentality score (13.1 points), which is due to its sanitary state. The total score depends not only on the species assortment, but also on the plantation sanitary state. The ornamentality score increases with distance from the road, which is due to the improvement in the sanitary state of trees and shrubs (22.8 points at a distance versus 21.4 points near the road). Among all the studied types of plantations in the cities of the Arkhangelsk agglomeration, 50 % have a high degree of ornamentality, 45 % – medium and 5 % – low. Single-breed plantations are generally less decorative than mixed (20.5 points versus 23.4 points). Urban plantations are more or less decorative throughout the entire calendar year. The proposed scheme of the procedure assumes an assessment of decorative effect during all seasons of the year. So, the following should be recorded: the beginning of the period of leafing and flowering in spring; the sanitary state, flowering (duration, abundance, color and size of flowers) in summer; the color scheme of the leaves, the total duration of leafing in autumn; the decorative qualities of trunk and crown (architectonics of crown, coloring of branches) in winter.

scholarly journals Design of Optimal Rainfall Monitoring Network Using Radar and Road Networks

Entropy ◽  
2021 ◽  
Vol 23 (3) ◽  
pp. 378
Author(s):  
Taeyong Kwon ◽  
Seongsim Yoon ◽  
Sanghoo Yoon
Keyword(s):  
Road Networks ◽  
Monitoring Network ◽  
Conditional Entropy ◽  
Radar Data ◽  
Disaster Risk ◽  
Water Levels ◽  
The Road ◽  
Dam Operation ◽  
A Site ◽  
High Degree

Uncertainty in the rainfall network can lead to mistakes in dam operation. Sudden increases in dam water levels due to rainfall uncertainty are a high disaster risk. In order to prevent these losses, it is necessary to configure an appropriate rainfall network that can effectively reflect the characteristics of the watershed. In this study, conditional entropy was used to calculate the uncertainty of the watershed using rainfall and radar data observed from 2018 to 2019 in the Goesan Dam and Hwacheon Dam watersheds. The results identified radar data suitable for the characteristics of the watershed and proposed a site for an additional rainfall gauge. It is also necessary to select the location of the additional rainfall gauged by limiting the points where smooth movement and installation, for example crossing national borders, are difficult. The proposed site emphasized accessibility and usability by leveraging road information and selecting a radar grid near the road. As a practice result, the uncertainty of precipitation in the Goesan and Hwacheon Dam watersheds could be decreased by 70.0% and 67.9%, respectively, when four and three additional gauge sites were installed without any restriction. When these were installed near to the road, with five and four additional gauge sites, the uncertainty in the Goesan Dam and Hwacheon Dam watersheds were reduced by up to 71.1%. Therefore, due to the high degree of uncertainty, it is necessary to measure precipitation. The operation of the rainfall gauge can provide a smooth site and configure an appropriate monitoring network.

scholarly journals Determination of Reserves for Reducing Delays and Increasing the Capacity of the Street-Road Network in Gomel as a Factor of Reducing Losses in Traffic

2021 ◽  
pp. 65-72
Author(s):  
D. P. Khodoskin
Keyword(s):  
Road Network ◽  
Urban Traffic ◽  
Economic Losses ◽  
Value Assessment ◽  
Large Cities ◽  
The Road ◽  
Car Traffic ◽  
Traffic Capacity ◽  
Real Objects ◽  
Time Expenditures

Purpose. Often, the existing level of traffic capacity of road network facilities in large cities is insufficient. This is often due to the fact that urban growth is significantly ahead of the reconstruction and renovation of the corresponding infrastructure. As a result, traffic delays of various kinds occur on city roads, accompanied, first of all, by economic losses. Therefore, the search for reserves to reduce various types of losses associated with insufficient traffic capacity of the road network when organizing urban traffic is the purpose of this work. Methodology To determine the reserves for increasing the traffic capacity of the road network and reducing various kinds of delays, the method of deterministic analysis was used, the method for calculating the cycle according to F. Webster, based on the use of phase coefficients and time lost in the cycle (as the sum of transient intervals), the method for measuring the intensity of car traffic in the traffic flow, as well as the methodology for calculating economic losses arising from delays in the movement of vehicles. Findings. A study of delays and time expenditures and the corresponding economic losses that occur at typical objects of the city's street-road network (regulated intersections) has been carried out. The reserves of their reduction, and as a consequence, the increase in the capacity of both individual sections and the city's road network as a whole, have been determined. Originality. The use of this method on real objects of the road network allows developing the scientific interpretation of the methods used and expanding the scope of their application. Practical value. Assessment of emerging problems of traffic capacity and associated losses (including economic ones) makes it possible to determine the most promising ways to determine the traffic capacity reserves and, as a result, reduce economic losses.

scholarly journals СТРАТЕГИЯ 3WIN УСТОЙЧИВОЙ КООПЕРАЦИИ ИТ-ИНДУСТРИИ И УНИВЕРСИТЕТОВ: R&D СТАРТ-АП ШКОЛЫ

2018 ◽  
pp. 71-76
Author(s):  
Михаил Викторович Лобачев ◽  
Светлана Григорьевна Антощук ◽  
Вячеслав Сергеевич Харченко
Keyword(s):  
Interaction Model ◽  
Student Body ◽  
The Road ◽  
Student Teams ◽  
Start Up ◽  
Degree Of Stability ◽  
Definition Of ◽  
The University ◽  
Model C ◽  
High Degree

A 3Win strategy for establishing a sustainable model of collaboration between the industry and universities is developed. Primary objectives of the work are outlined and are focused on the establishment of a model of sustainable collaboration between the industry, academic and research societies and student teams. This allows us to resolve the issue of preparing well qualified IT specialists in the necessary fields in collaboration with foreign partners and teams. This also presents the opportunity of development and research, targeted at the end consumer, by creating working prototypes or products. The sustainability of such a collaboration model supplements and is maintained by the long-term integration of mutual interests of the parties participating in the process. The analysis of the viability of this model is carried out on the basis of operation of R&D Start-up School. The definition of the 3Win strategy is established, as an interaction model, based on which each of the participating parties (the university, the company and the student body) receives their own personal benefits and achieves their own goals. In addition, this is a synergic model – where the cooperation of the participants results in a much more effective outcome, than individual efforts of each of the participants separately. The model, which is described as the 3Win strategy, in a way can be classified as a synthetic model, that incorporates the benefits of a number of other models developed previously. A1 – a department within the university as an incubator for developers, A2 – a department within the university as a center for certification support, Model B – a department within the university acting as a center for collaborative research and development and finally Model C – a department within the university as a business incubator. Simultaneously, this is a new class within the models of higher calibre, due to the fact that it facilitates a high degree of stability for the collaboration. The implementation of the model within the scope of international multi-university collaboration is described, along with its benefits. Examples of interaction between various components of the models based on existing cases are provided and the approaches for the 3Win strategy between the industry, universities and student body are described. The road-maps for further development of the aforementioned approaches are established

scholarly journals Особенности деформаций главных балок железобетонных пролетных строений автодорожных мостов при их усилении внешней арматурой

2020 ◽  
Vol 44 (3) ◽  
pp. 151-158
Author(s):  
S. Tomilov
Keyword(s):  
Carrying Capacity ◽  
Load Capacity ◽  
Reinforced Concrete Beams ◽  
Main Beam ◽  
Relative Deformation ◽  
Operational Parameters ◽  
The Road ◽  
External Reinforcement ◽  
Bridge Structures ◽  
High Degree

Так как в настоящее время в эксплуатации находится достаточно много автодорожных мостов, запроектированных и построенных в различные периоды, их, как и всю дорожную сеть, необходимо поддерживать в состоянии, соответствующем нормативам, а для этого проводить ремонт с использованием элементов усиления несущих конструкций. При качественном возведении и надлежащем уходе высокая степень сохранности мостов позволяет продлить срок их службы путем решения ряда конструктивных вопросов, наиболее актуальным из которых считают обеспечение нормативной грузоподъемности. Усиление с целью повышения грузоподъемности эксплуатируемых мостов достигается путем добавления элементов внешних или внедренных в состав существующего конструктива в зависимости от типа сооружения, его состояния и доступной технологии производства. Однако не только грузоподъемность, но и подверженность конструкций деформациям определяет транспортно-эксплуатационные параметры сооружения, характеризующие послеремонтное состояния моста. Цель настоящего исследования – анализ известного и широко востребованного способа усиления железобетонных балок внешним армированием как обеспечивающего минимальное вмешательство в существующие основные конструкции, технологичного и доступного в исполнении. Впервые дана оценка влияния стадийности включения в работу элементов усиления на общие деформации – прогибы главных балок. Ключевые слова: главная балка, грузоподъемность, усиление, внешняя арматура, свободная затяжка, стадийность работы, относительная деформация, прогиб. Currently, there are quite a lot of road bridges in operation, designed and built in different periods. It is necessary to maintain the road network including bridge structures in a condition that meets up-to-date standards, and for this repair should be carried out using reinforcing elements of the supporting structures. With high-quality construction and proper maintenance, a high degree of safety of bridges allows to extend their service life by solving a number of design issues, the most important of which is considered to be the provision of standard load capacity. Strengthening in order to increase the carrying capacity of operated bridges is achieved by adding elements external or incorporated into the existing structure, depending on the type of structure, its condition and available production technology. However, not only the carrying capacity, but also the susceptibility of structures to deformations determines the transport and operational parameters of the structure, which characterize the post-repair state of the bridge. The purpose of this study is to analyze the well-known and widely demanded method of reinforcing reinforced concrete beams with external reinforcement as providing minimal interference with the existing basic structures, technological and affordable in execution. For the first time, an assessment of the influence of the staging of the inclusion of reinforcement elements in the work on the general deformations – deflections of the main beams. Keywords: main beam, carrying capacity, reinforcement, external reinforcement, free rod, staging of work, relative deformation, deflection.

Network Trade and Development: What Do Patterns of Vertically Specialized Trade in ASEAN Tell Us About India’s Place in Asian Production Networks?

2016 ◽  
Vol 16 (2) ◽  
pp. 349-388 ◽  
Author(s):  
Meenu Tewari ◽  
C. Veeramani
Keyword(s):  
Value Chain ◽  
Capital Intensity ◽  
Production Networks ◽  
Firm Level ◽  
The Road ◽  
Industrial Parks ◽  
Regional Markets ◽  
The One ◽  
High Degree ◽  
Perverse Effect

At a time when regional production networks have been resurgent, especially in Asia, why has India’s integration in regional markets not been deeper? Using highly disaggregated trade data and firm level field interviews, the paper found that despite low volumes, vertically specialized trade has been growing between India and ASEAN. Overall, we find that there is significant potential for deepening India’s engagement in ASEAN by expanding intermediates exports in the machinery sector, expanding into higher value specialty chemicals exports, unlocking the underexploited potential for growth in the electronics sector and moving up the value chain in the road vehicles and, telecommunications sectors where network exports are already important. Our field level interviews bear out these findings and show that besides the usual policy costs associated with supply side constraints in Indian manufacturing three factors hamper India’s deeper integration in Asian production networks: (i) low value addition in Indian manufacturing which translates into low-value component exports and a high degree of reliance on expensive imports creating a perverse effect on both learning and trade balance; (ii) a janus faced effect on technological change and productivity stemming from relatively low quality standards associated with cost-sensitive demand from domestic buyers and weak exports. This leads to technological stagnation on the one hand, and a growing capital intensity of routine operations on the other. (iii) and finally, despite the rise of export oriented industrial parks and SEZ’s there is a striking lack of an effective institutional eco-system of industrial advantage that agglomeration economies and colocation of interdependent, sectorally specialized firms can bring. Instead, sectoral fragmentation adds to manufacturing costs despite co-location. Although some firms have found innovative ways to cope, the coping costs are high.

scholarly journals Towards community management to improve pedestrian mobility of the elderly

2021 ◽  
pp. 1-12
Author(s):  
Ayumi MARTÍNEZ-LIMA ◽  
María Lourdes GUEVARA-ROMERO ◽  
María de Lourdes FLORES-LUCERO
Keyword(s):  
Citizen Participation ◽  
Municipal Government ◽  
The Elderly ◽  
Community Management ◽  
Main Theme ◽  
Large Cities ◽  
The Social ◽  
The Board Of Directors ◽  
Urban Conditions ◽  
The City

The main theme of this article focuses on the study of the abandonment of neighborhoods or colonies that make up large cities in terms of the urban conditions that exist between its streets and avenues. In this case we refer to the América Norte neighborhood located in the east of the city belonging to the state of Puebla, Mexico. There are currently no adequate spaces for efficient pedestrian mobility, especially for the most vulnerable sectors such as the elderly, a sector that is the focus of this research. Therefore, the main objective is focused on carrying out a community management process that aims to offer strategies and actions to improve mobility conditions and pedestrian accessibility through citizen participation, all this with the collaboration of the board of directors, street representatives and institutions of the corresponding municipal government. The methodology used is developed from the complex systems from the action-research, in order to analyze and understand the problems from the social and urban environment that allows to broaden the perspective of the needs that reflects the social reality that exists in the neighborhood.

scholarly journals THE ROADS OF MILITARY EVENTS: BUKOVINA, XIV—XVIII CENTURIES

2018 ◽  
Vol 26 (1) ◽  
pp. 261-269
Author(s):  
V. P. Korzhyk
Keyword(s):  
Decisive Role ◽  
Quality Parameters ◽  
Metal Detector ◽  
Military Conflict ◽  
The Road ◽  
Military Conflicts ◽  
High Level ◽  
Short Time ◽  
High Degree ◽  
The Village

The presence of communication, their density, quality, parameters to a large extent determine the strategy, logistics, tactics and overall success of military conflict resolution. On the territory of Bukovina, which is marked by an intensely dissected topography and a high degree of afforestation, the road network adapted to these difficult conditions. It played a decisive role in the implementation of the historical-geographical process in its belligerative format. From this position military conflicts signifying for Bukovyna were analyzed. The battle in the Kozmin forest (October 1497) between Poland (Jan Olbright) and Moldova (Stefan the Great) (Chernivtsi region, Glybotsky district) is very interesting for military history. Due to the high level of forestness of the territory and a small number of roads, the battle took place along the main road at a distance of 20—22 km. For those times it became a unique phenomenon. The tactics of the forest ambush allowed a much smaller Moldovian army (a maximum of 16—17 thousand people) to achieve significant success in a short time. Was destroyed more than half of the living force of the enemy, captured several thousand Poles, seized all the siege technology, artillery, column, carriage of the king. As a result, from 50—60 thousand Polish troops returned home only a dozen of personal guards of the king. In October 1685, fighting near the villages of Boyany — Raranche (Novoselytsya district) took place between the troops of the Polish crown hetman Jan Jablonowski (30000 soldiers) and the Turkish-Tatar-Moldovian coalition (about 140 thousand soldiers). The commander, who was pressed to the forested hills of Khotyn highland, had to look for ways to retreat by forest roads. Due to their small quantity and poor condition, carrying out rearguard battles, he managed to save the army from defeat. The author supposed 3 options for choosing a retreat path. Now is necessary to determine the actual road with additional research using a metal detector. In November 1691, near the village of Ropcha (Storozhynets district), after leaving Moldova, the army of Jan Sobieski, on the only one old transit route here, fell on a three-day snow storm. Non combat losses was more than 50 % soldiers, 100 % ammunition, artillery, many horses and carts. The reason is in a small number of dwellings near this road and in the absence of feed. In 1739, during the Russo-Turkish War, the Russian army under General von Münnich in the territory of the Khotyn Hill unexpectedly and illogically used the difficult path for maneuvering across forests between the villages Zhuchka and Raranche. As a result of the two subsequent battles, the Turkish Army was broken up. Thus, the historical geographic analysis on the principle of reflection gives the excellent opportunity to identify the nature and course of military events, exploring the network of ancient routes.

Smart Cities: Study and Comparison of Traffic Light Optimization in Modern Urban Areas Using Artificial Intelligence

2018 ◽  
Vol 8 (2) ◽  
pp. 10
Author(s):  
Mustapha Kabrane ◽  
Salah-ddine Krit ◽  
Lahoucine El Maimouni
Keyword(s):  
Traffic Congestion ◽  
Urban Areas ◽  
Road Network ◽  
Smart Cities ◽  
Optimization Techniques ◽  
Traffic Light ◽  
Large Cities ◽  
Traffic Lights ◽  
The Road ◽  
Road Signs

In large cities, the increasing number of vehicles private, society, merchandise, and public transport, has led to traffic congestion. Users spend much of their time in endless traffic congestion. To solve this problem, several solutions can be envisaged. The interest is focused on the  system of road signs: The use of a road infrastructure is controlled by a traffic light controller, so it is a matter of knowing how to make the best use of the controls of this system (traffic lights) so as to make traffic more fluid. The values of the commands computed by the controller are determined by an algorithm which is ultimately, only solves a mathematical model representing the problem to be solved. The objective is to make a study and then the comparison on the optimization techniques based on artificial intelligence1 to intelligently route vehicle traffic. These techniques make it possible to minimize a certain function expressing the congestion of the road network. It can be a function, the length of the queue at intersections, the average waiting time, also the total number of vehicles waiting at the intersection

GIS-Analysis of Central Asian Transportation Systems’ Configuration

2019 ◽  
Vol 950 (8) ◽  
pp. 45-51
Author(s):  
P.M. Sapanov
Keyword(s):  
Spatial Data ◽  
Road Network ◽  
Road Transport ◽  
Transportation Systems ◽  
Transport Infrastructure ◽  
Gis Analysis ◽  
Road Transportation ◽  
The Road ◽  
Central Asian ◽  
High Degree

The author describes the performed GIS-analysis of the Central Asian transportation systems. The road transportation infrastructure of the whole region and its individual countries (Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan) has been studied. The overview of the factors, influencing the formation of regional transportation systems, including historical, political and natural, has been done. The road network of Central Asian countries has been modeled using GIS network analysis toolset, with spatial data provided by OpenStreetMap. The so-called topological tiers of the network have been identified, showing the uneven provision of the studied area with road transport infrastructure. The proposed research method makes it possible to note a high degree of the road network integration between the countries. The areas with low transport accessibility, as well as autonomous parts of road network have been visualized. The research categorizes the countries’ transport networks configurations types formed under the influence of economic, social, agricultural, climatic and topographical factors.

Assessment of feasibility of placing the parking space of passenger cars on the basis of simulation modeling

2021 ◽  
pp. 65-73
Author(s):  
O. A. Kopylova ◽  
◽  
P. N. Mishkurov ◽  
A. A. Chetvergova ◽  
◽  
...  
Keyword(s):  
Simulation Model ◽  
Simulation Modeling ◽  
Economic Effect ◽  
Parking Space ◽  
Preliminary Assessment ◽  
Passenger Cars ◽  
Large Cities ◽  
The Road ◽  
Standard Values ◽  
Optimal Type

The article deals with the issues of assessing the development of parking systems of passenger cars in large cities based on the use of the simulation modeling method. With the help of AnyLogic software, a simulation model for evaluating the feasibility of parking space placement has been developed. The proposed simulation model simulates the movement of vehicles on a section of the road network (RN) and determines the number of cars that could not park due to the lack of parking spaces. Three calculators are built into the simulation model. The first calculator calculates the required number of parking spaces based on standard values, depending on the purpose of the object near which the parking space is planned. The second calculator allows you to determine the preliminary cost of the project, depending on the type of parking space. The third calculator evaluates the efficiency of the project, changes such indicators as the required number of cars, the average time spent by cars in the system under study, their average speed, the number of car stops. Using the developed model allows you to determine changes in the values of traffic flow indicators and choose the optimal type of parking space, based on a preliminary assessment of the expected economic effect.

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