scholarly journals Anti ice build-up method on small railway culverts

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Yuri Shcheviev ◽  
Natalia Telyatnikova ◽  
Ilya Kruchinin
Keyword(s):  
Structural Engineering ◽  
Circular Cross Section ◽  
Sharp Decrease ◽  
Complete Analysis ◽  
Danger Zone ◽  
New Approach ◽  
The Road ◽  
Analysis Process ◽  
Northern Regions ◽  
Railroad System

One of the most important problems with the small railway culverts operation is the ice build-up on the inlets of these structures. This problem is universal in occurrence, but the northern regions are the main danger zone. The objective of this paper is to determine the phenomenon causes and factors that directly affect it, as well as to find a way to solve the problem. A small culvert is considered as a subsystem of the «Road/Railroad» system, which allows us to execute complete analysis and description of the technical and special production processes accounting related to design, construction, maintenance, scheduled, overhaul, as well as reconstruction, and solution of some problems, during the culverts operation. Consistently considered reliability issues during structural engineering: functional, structural, and informational. described Regulations that allow determining the nature of the ice build-up problem on pipes. In the analysis process of the existing methods for solving the problem, it was found that each method has its particularities, but in the end, is ineffective. According to the methodology presented by the authors, under Professor’s Yu.L. Scheviev supervision, has been developed a completely new approach, that provides effective financial resources use, in relation to the work result during the entire object’s life cycle, in form of a long structure operation period with the elimination of the ice build-up problem possibility. Technique application leads to a sharp decrease in the technical work frequency at small culverts. The paper analyzes a detailed algorithm for using the technique based on the calculation of a small culvert with a circular cross-section.

scholarly journals Deformation analysis with Total Least Squares

2006 ◽  
Vol 6 (4) ◽  
pp. 663-669 ◽  
Author(s):  
M. Acar ◽  
M. T. Özlüdemir ◽  
O. Akyilmaz ◽  
R. N. Çelik ◽  
T. Ayan
Keyword(s):  
Least Squares ◽  
Total Least Squares ◽  
Transformation Model ◽  
Deformation Analysis ◽  
New Approach ◽  
Main Research ◽  
Research Fields ◽  
Analysis Process ◽  
Alternative Methodology ◽  
Coordinate Changes

Abstract. Deformation analysis is one of the main research fields in geodesy. Deformation analysis process comprises measurement and analysis phases. Measurements can be collected using several techniques. The output of the evaluation of the measurements is mainly point positions. In the deformation analysis phase, the coordinate changes in the point positions are investigated. Several models or approaches can be employed for the analysis. One approach is based on a Helmert or similarity coordinate transformation where the displacements and the respective covariance matrix are transformed into a unique datum. Traditionally a Least Squares (LS) technique is used for the transformation procedure. Another approach that could be introduced as an alternative methodology is the Total Least Squares (TLS) that is considerably a new approach in geodetic applications. In this study, in order to determine point displacements, 3-D coordinate transformations based on the Helmert transformation model were carried out individually by the Least Squares (LS) and the Total Least Squares (TLS), respectively. The data used in this study was collected by GPS technique in a landslide area located nearby Istanbul. The results obtained from these two approaches have been compared.

scholarly journals REINFORCEMENT OF SUBGRADE DOUBLE-CONE PILES

2021 ◽  
pp. 62-73
Author(s):  
A. A. Degtyar ◽  
A. M. Burgonutdinov
Keyword(s):  
Double Cone ◽  
Strip Foundation ◽  
Method Of Calculation ◽  
The Road ◽  
Design Engineers ◽  
Arch Effect ◽  
Traffic Loads ◽  
Northern Regions ◽  
The Russian Federation ◽  
Construction Practice

Statement of the problem. The problem of designing the reinforcement method of weak seasonally freezing soils in subgrade base by using double-cone hollow piles and geotechnical materials for roads in the northern regions of the Russian Federation is investigated. Results. As a result of the study, the construction of the subgrade in the form of pile strip foundation of double-cone piles reinforced by geotechnical materials on weak heaving soils taking into account traffic loads and weight of subgrade is considered. A method has been developed of calculating the road base in the form of pile strip foundation of double-cone piles reinforced by geotechnical materials on weak heaving soils taking into account traffic loads and weight of subgrade is considered. The developed method of calculation is based on the formation of soil compaction zones in the near-pile space as a result of pile driving into the ground, which leads to an increase in the structural strength of the weak soil, and also takes the arch effect that occurs in the soil between adjacent pile heads. Conclusions. The obtained research results allow us to conclude that the developed subgrade design and its calculation method are of great interest both to scientists and design engineers, and can be used in construction practice.

scholarly journals Influence of road conditions on vehicles’ fuel consumption

2021 ◽  
pp. 158-164
Author(s):  
Kateryna Dodukh ◽  
◽  
Anton Palchyk ◽  
Keyword(s):  
Fuel Consumption ◽  
Weather Conditions ◽  
General Criterion ◽  
Average Speed ◽  
The Road ◽  
Horizontal Curves ◽  
Vehicle Type ◽  
Wet Snow ◽  
Northern Regions ◽  
Road Width

The work is devoted to the solution of the issue of economic and safe transportation of goods and passengers by road. This transportation depends on the condition of roads, road surface, vehicle type and weather conditions. Weather conditions are taken into account both in terms of visibility (meteorological) and in terms of the coefficient of adhesion. The general criterion for assessing all conditions is the average speed of the vehicle, taking into account weather and road conditions. Weather conditions are determined by the type of visibillity: clear weather, rain, snowfall, blizzards, rain. By the coefficient of adhesion: dry surface, normal, wet, snow, ice. By road conditions: category of road, width of the travel section, radii of horizontal curves, longitudinal slopes, width of the road, the state of surface (coefficient of solidity). According to weather conditions, the calendar year is divided into three periods according to the conditions of cars’ movement. The first (winter) - December, January, February, March; second (spring-summer) - April, May, July, June, August; third (autumn) - September, October, November. The use of weather conditions in the Northern regions of Ukraine is presented in this work.

scholarly journals Improving V2X-6G network capacity using a new UAV-based approach in a Cloud/ICN architecture, case Study: VANET network

2021 ◽  
Vol 297 ◽  
pp. 01019
Author(s):  
Abdeslam Houari ◽  
Tomader Mazri
Keyword(s):  
Mobile Networks ◽  
Network Capacity ◽  
Intelligent Environment ◽  
New Approach ◽  
The Road ◽  
Road Users ◽  
Aerial Vehicle ◽  
On The Road

6G of mobile networks plays a crucial role in improving the capacity and enhancing the quality of services of Vehicle-to-Everything (V2X) based networks evolving in an intelligent environment. VANET is a promising project in the intelligent transportation field using V2X communications. The emergence of several 5G and 6G technologies has raised several challenges for scientists and researchers to allow vehicles and road users to enjoy several services while ensuring their safety on the road. Among these technologies, the unmanned aerial vehicle (UAV), which can perform different tasks for road users and vehicle drivers such as data caching, packet relaying and processing. In this article, we present a new approach based on 6G Unmanned Aerial Vehicles (UAV) technology on a vehicular cloud architecture while exploiting the exchange support of information-centric networking (ICN) for the improvement of network capacity.

Service-Bonded Inquiry: The Road Less Traveled

1997 ◽  
Vol 17 (1) ◽  
pp. 107-121 ◽  
Author(s):  
Tom Martinek ◽  
Don Hellison
Keyword(s):  
Personal Values ◽  
Information Gathering ◽  
Community Settings ◽  
New Approach ◽  
The Road ◽  
Scholarly Inquiry ◽  
Research Service ◽  
The Way

In this essay, a new approach to doing research in schools and other community settings is described: service-bonded inquiry. This approach allows researchers to expand the boundaries of scholarly inquiry through the integration of service and scholarship. It is not an attempt to replace traditional forms of research; rather, it serves to complement the way researchers have historically conducted research. Service-bonded inquiry is the proverbial bridge between what Hal Lawson (1990) calls information gathering and useful information. The discussion here focuses on describing important assumptions underlying service-bonded inquiry and arguing that personal values and commitment must be assessed before engaging in this type of research. In addition, guideposts for evaluating and doing service-bonded inquiry are provided.

Infrastructure and Monitoring of the State of the Road Network in the Northern Regions

2021 ◽  
Author(s):  
N. K. Tagieva ◽  
O. Yu. Ulitich ◽  
A. Yu. Gorelov ◽  
A. I. Salagubov
Keyword(s):  
Road Network ◽  
The State ◽  
The Road ◽  
Northern Regions

Enhancing HE Stain Images Through an Advanced Soft Computing-Based Adaptive Ameliorated CLAHE

2020 ◽  
pp. 256-277
Author(s):  
Dibya Jyoti Bora
Keyword(s):  
Medical Imaging ◽  
Soft Computing ◽  
Crucial Role ◽  
Experimental Results ◽  
The Other ◽  
New Approach ◽  
Satisfactory Level ◽  
Analysis Process

HE stain images play a crucial role in the medical imaging process. Often these images are regarded as of golden standards by physicians for the quality and accuracy. These images are fuzzy by nature, and hence, traditional hard-based techniques are not able to deal with this. Thereby, a decrease in the accuracy of the analysis process may be experienced. Preprocessing of these images is utmost needed so that the fuzziness may be removed to a satisfactory level. A new approach for tackling this problem is introduced in this chapter. The proposed technique is soft computing-based advanced adaptive ameliorated CLAHE. The experimental results demonstrate the superiority of the proposed approach than the other traditional techniques.

Places and Spaces

2020 ◽  
pp. 153-183
Author(s):  
Hugh M. Thomas
Keyword(s):  
New Approach ◽  
The Road ◽  
On The Road ◽  
Court Life ◽  
Formed Part ◽  
King John

This chapter studies royal residences, reactions to various landscapes, and ceremonial practices that formed part of royal itineration. King John and his court travelled constantly, meaning that court life was not centred on a small number of palaces but on multiple castles, palaces, and other residences. Until recently, work on medieval royal residences focused largely on castles and their military functions, but now scholars are studying domestic aspects, including in castles, and the designed landscapes that surrounded castles and palaces. This chapter applies the new approach to John’s reign. In particular, it studies attitudes towards landscapes, both designed landscapes and the less heavily manipulated environments in which the court hunted. Because of the king’s travels, the court spent much time on the road, and the chapter also studies certain associated ceremonies, such as processions to greet the king and formal entries into important towns, also known as the adventus.

Threat Modeling

2010 ◽  
pp. 228-246
Author(s):  
Nishtha Srivastava ◽  
Sumeet Gupta ◽  
Mayank Mathur
Keyword(s):  
Web 2.0 ◽  
Research Work ◽  
Complete Analysis ◽  
New Approach ◽  
Threat Modeling ◽  
Commercial Use ◽  
Modeling Approaches ◽  
Modeling Approach ◽  
Public Networks ◽  
Informal Method

This research work proposes a threat modeling approach for Web 2.0 applications. The authors’ approach is based on applying informal method of threat modeling for Web 2.0 applications. Traditional enterprises are skeptical in adopting Web 2.0 applications for internal and commercial use in public-facing situations, with customers and partners. One of the prime concerns for this is lack of security over public networks. Threat modeling is a technique for complete analysis and review of security aspects of application. The authors will show why existing threat modeling approaches cannot be applied to Web 2.0 applications, and how their new approach is a simple way of applying threat modeling to Web 2.0 applications.

Testing Study on Fatigue Damage of Asphalt Mixture with Considering the Restoration Time

2014 ◽  
Vol 505-506 ◽  
pp. 204-209
Author(s):  
Biao Ding ◽  
Chuan Chao Zheng ◽  
Hua Nan Wang
Keyword(s):  
Fatigue Damage ◽  
Cyclic Load ◽  
Asphalt Mixture ◽  
Sharp Decrease ◽  
Dissipated Energy ◽  
Time Interval ◽  
The Road ◽  
Restoration Time ◽  
Cumulative Dissipated Energy ◽  
On The Road

Conventional fatigue damage test of asphalt mixture is usually under the condition of constant stress-mode or strain-mode, the specimen is broken when the cyclic load reaches certain number of times. In fact, vehicles on the road are not continuous, traffic volume is different in different time, there is a time interval between neighbouring vehicles. In this paper, time interval was set between two neighbouring cycles, the effect of recovery way, strain size and temperature on cumulative dissipated energy were analyzed. The results show that: in the early stages, recovery methods have little impact on the cumulative dissipated energy, with the increase of cyclic number, the value of trabecular under unconstrained condition will be greater than that of trabecular under constrained one. The bigger the strain size, the greater the value of cumulative dissipated energy; The lower the temperature, the greater the value of cumulative dissipated energy. Under the conditon of low strain size or high temperature , the value of cumulative dissipated energy decreases linearly. For the high strain or low temperature, there is a sharp decrease between the first cycle and second cycle, and then decreases linely in the later cylcles.

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