scholarly journals Deep Improvement of Heterogeneous Subsoils under Urban Conditions

2018 ◽  
Author(s):  
Jung Stefan
Keyword(s):  
Urban Conditions

Жизненное состояние древесных насаждений в условиях города Актобе (Казахстан)

2017 ◽  
Vol 7 (4) ◽  
pp. 51-55
Author(s):  
S. A. Abiev ◽  
S. A. Aipeisova ◽  
N. A. Utarbaeva
Keyword(s):  
Urban Area ◽  
Woody Plants ◽  
Health State ◽  
Urban Habitats ◽  
Resistant Species ◽  
Vital State ◽  
Ulmus Laevis ◽  
Urban Conditions ◽  
The City ◽  
Trees And Shrubs

<p>The purpose of our work is to assess the health state of woody plants growing in different habitats of the city of Aktobe. We have studied the health state of arboreal and shrubby plants growing in various urban habitats; the survey was conducted during 2016-2017 by route-visual method. We performed the analysis of species diversity, abundance and density in urban area. The assessment of health state of the trees was made according to V.A. Alekseev. From your data and literature review we established that such species as Ulmus pinnato-ramosa, Acer negundo, Populus tremula, Populus nigra, and Syringa vulgaris have strong winter resistnce in the territory of Aktobe; we registered that only their apex buds and emds of the shoots were frozen in severe winters. The medium-resistant speices include Ulmus laevis and Acer platonoides. They are less plastic and suffer from late spring and early autumn frosts. The Amorpha fruticosa, Vitis vinifera, and Parthenocissus guinguefolia could be considered as the non-resistant species, since they usually freeze up to the snow cover line. The analysis of the vital state made it possible to assess the resistance to urban conditions of the majority of trees and shrubs registered in urban habitats of Aktobe. According to the preliminary data, the origin of the plant and its winter resistance are of main importance when introducing new species to urban area.</p>

A Strategic Approach for implementing A Smart Pedestrian Network (SPN) System

2021 ◽  
Vol 11 (1) ◽  
pp. 208-217
Author(s):  
George Papageorgiou ◽  
Anastasia Ioannou ◽  
Athanasios Maimaris ◽  
Alexander Ness
Keyword(s):  
System Structure ◽  
Sustainable Mobility ◽  
Implementation Framework ◽  
Customer Involvement ◽  
Multiple Stakeholder ◽  
Strategic Approach ◽  
Pedestrian Network ◽  
Strategic Implementation ◽  
Agile Software ◽  
Urban Conditions

Abstract This paper presents a strategic approach for implementing a Smart Pedestrian Network (SPN) navigation System that is geared towards promoting sustainable mobility. The SPN system is being designed to reach multiple market segments by providing information on suitable walking routes aiming to satisfy potential users’ needs, but also multiple stakeholder demands. The paper presents the main objectives of the SPN system as well as its system structure, application features, functions, and relevant data sources. The proposed strategic implementation framework deems necessary for scaling up so that the SPN system is successfully implemented in a variety of urban conditions. The framework emphasizes the element of adaptability, so that SPN can be adjusted where and when necessary, to deal with a variety of contexts and specific sustainable mobility issues, depending on the particular municipality conditions. The proposed framework combines elements of both the waterfall and agile software development methods, as well as, aspects of Open Innovation, Customer Involvement and Co-Creation taking a multiple stakeholder approach.

scholarly journals Integrated GNSS/IMU-Gyrocompass with Rotating IMU. Development and Test Results

2020 ◽  
Vol 12 (22) ◽  
pp. 3736
Author(s):  
Gennadiy Emel’yantsev ◽  
Oleg Stepanov ◽  
Aleksey Stepanov ◽  
Boris Blazhnov ◽  
Elena Dranitsyna ◽  
...  
Keyword(s):  
Inertial Measurement Unit ◽  
Fiber Optic ◽  
Measurement Unit ◽  
Prototype Model ◽  
Navigation Satellite ◽  
Test Results ◽  
Rotating Platform ◽  
Inertial Measurement ◽  
Urban Conditions ◽  
The Given

The paper presents the developed integrated GNSS/IMU gyrocompass which, unlike the existing systems, contains a single-axis rotating platform with two antennas installed on it and an inertial measurement unit with tactical grade fiber-optic gyros. It is shown that the proposed design provides attitude solution by observing the signals of only one navigation satellite. The structure of the integrated GNSS/IMU gyrocompass, its specific features and prototype model used in the tests are described. The given test results in urban conditions confirmed heading determination accurate to ±1.5° (3σ).

scholarly journals TECHNICAL SOLUTION IN A CENTRAL STATION RE-DEVELOPMENT UNDER RAILWAY OPERATION RESTRICTED BY VARIOUS URBAN CONDITIONS

2011 ◽  
Vol 17 (35) ◽  
pp. 171-176
Author(s):  
Toshiya OTA ◽  
Hidenori TSUKATANI ◽  
Sadamitsu NEZU ◽  
Sakae KASHIO ◽  
Tadashi KONDO ◽  
...  
Keyword(s):  
Technical Solution ◽  
Railway Operation ◽  
Urban Conditions ◽  
Central Station

Optical methods for hydrogen degassing monitoring in urban conditions

2015 ◽  
Vol 119 (6) ◽  
pp. 948-954 ◽  
Author(s):  
E. V. Timchenko ◽  
P. E. Timchenko ◽  
L. A. Zherdeva ◽  
N. V. Tregub ◽  
E. A. Selezneva ◽  
...  
Keyword(s):  
Optical Methods ◽  
Urban Conditions

scholarly journals A Decision-Making Model on the Impact of Vehicle Use on Urban Safety

2021 ◽  
Vol 13 (6) ◽  
pp. 3585
Author(s):  
Dariusz Masłowski ◽  
Małgorzata Dendera-Gruszka ◽  
Ewa Kulińska
Keyword(s):  
Decision Making ◽  
Internal Combustion Engines ◽  
Urban Traffic ◽  
Brake Pads ◽  
Wear And Tear ◽  
Urban Safety ◽  
Negative Impacts ◽  
Urban Conditions ◽  
Decision Making Model ◽  
The Impact

In the current era of urban development, people are already using electric vehicles more and more often for transport purposes, which reduces negative impacts on the environment. However, there are still vehicles in towns and cities that run on ordinary internal combustion engines. Performing optimization measures on the operation of these vehicles improves their performance, which can result in positive sustainable development effects. This article presents measures to reduce the wear and tear of urban vehicles and outlines a decision model to determine which of the vehicle parts described suffer the most frequent wear and tear under urban conditions. The article presents a list of structural elements that are most affected by urban traffic, as well as corrective actions to improve such specialized vehicles. Based on the decision analysis, Rule 1 was eliminated as having the least significant impact on vehicle wear and tear, and the least significant impact on urban safety. On the other hand, the most worn-out elements were found to be gearboxes, clutches, bus levelling electronics, and brake pads and discs. The decision-making model made it possible to identify the factors which have the greatest impact on reducing safety in urban spaces.

Housing Evaluation Methodology in a Situation of Social Poverty to Guarantee Sustainable Cities: The Satisfaction Dimension for the Case of Mexico

2021 ◽  
Vol 13 (20) ◽  
pp. 11199
Author(s):  
Pilar Mercader-Moyano ◽  
Oswaldo Morat-Pérez ◽  
Carmen Muñoz-González
Keyword(s):  
Social Inequality ◽  
Social Research ◽  
Theoretical Models ◽  
Evaluation Methodology ◽  
Social Aspects ◽  
Sustainable Cities ◽  
Starting Point ◽  
Emergency Scenarios ◽  
Urban Conditions ◽  
Qualitative Characteristics

Currently, one in eight people live in neighborhoods with social inequality and around one billion people live in precarious conditions. The significance of where and how to live and in what physical, spatial, social, and urban conditions has become very important for millions of families around the world because of mandatory confinement due to the COVID-19 pandemic. Today, many homes in poor condition do not meet the basic requirements for residential environments in the current framework. Theoretical models for the urban evaluation of this phenomenon are a necessary starting point for urban renewal and sustainability. This study aims to generate a model for evaluating homes in a situation of social inequality (hereinafter Vrs) with indicators on physical, spatial, environmental, and social aspects. The methodology used in this study evaluates housing, taking into consideration habitability factors (physical, spatial, and constructive characteristics), as well as the qualitative characteristics assessing the satisfaction of users with the adaptation and transformation of the housing and its surroundings. The application of 51 indicators distributed in four previous parameters was established for this study. This quantification identifies the deficiencies of the dwellings and sets the guidelines for the establishment of future rehabilitation policies for adapting the dwellings to current and emergency scenarios. The innovation of this study is the construction of a tool for social research surveys designed to include individual indicators from the dwellings’ users, to provide a more dependable representation of the problems found in Vrs. The results of this research identified the deficiencies of precarious housing and could be used for applying effective proposals for improvement of habitability and their surroundings in the future. Furthermore, the results showed that when all the indicators were considered, the level of lag reached would be similar to that of a real housing situation, further confirming the suitability of the methodology applied in this investigation.

EXPERIENCE OF PLANTING LARGE SIZE CONIFEROUS WOODY SPECIES IN THE SPRING-SUMMER PERIOD ON THE KOLA NORTH

2021 ◽  
Vol 21 (3) ◽  
pp. 57-70
Author(s):  
E.A. Svyatkovskaya ◽  
◽  
N.V. Saltan ◽  
E.P. Rybalka ◽  
N.N. Trostenyuk ◽  
...  
Keyword(s):  
Root System ◽  
Picea Glauca ◽  
Polar Region ◽  
Woody Species ◽  
Larix Sibirica ◽  
Morphometric Parameters ◽  
Summer Period ◽  
Large Size ◽  
Urban Conditions

The first experience of transplanting large-sized coniferous dendrointroducents (Picea glauca (Moench) Voss, Larix sibirica Ledeb.) in the spring-summer period without preliminary prepara-tion of the root system in the urban conditions of the Polar region was presented. Four specimens of middle-aged plants of both species were selected. The transplant was carried out with the max-imum use of mechanized equipment, which ensures good preservation of the lump and the tree it-self. There were four mutually related stages of work (preparatory, digging out plants, transporta-tion, planting), the quality of which depends on the success of plant survival. A brief description of the decorative qualities, morphometric parameters and the state of the experimental plants has been given. It has shown that due to the peculiarities of the soil and the location of the root system in coniferous introduced species, a clod of earth should be at least 60 cm thick, with a diameter of 110 to 130 cm. The main agrotechnical methods for the creation and care of plantings from large-sized plants were given.

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