THE STUDY OF THE PROCESS OF ASSESSING THE STATE OF WOODEN STRUCTURES

2020 ◽  
Vol 12 (4) ◽  
pp. 10-16
Author(s):  
Svetlana Galaeva ◽  
S. Nikolenko ◽  
Svetlana Sazonova
Keyword(s):  
Structural Damage ◽  
The State ◽  
Visual Examination ◽  
Visual Method ◽  
Saratov Region ◽  
Intended Purpose ◽  
Main Development ◽  
Technical Solutions ◽  
Wooden Structures

The process of evaluating wooden structures, which is gaining great popularity these days, is examined. In view of the fact that the main development of the countryside took place during the Soviet era, by our time, wooden structures of the last century have become unusable and cannot be used for their intended purpose. The results of a visual examination of wooden structures of the feldsher-midwife station located in s. Lopatino, Saratov region. All wooden structures of the object were examined, measurements of the found damages were made. During the examination, a visual method with photo fixation was used. The analysis of the terrain in which the object is located, in order to more accurately obtain the result of the origin of the identified damage. The types of studies considered, as well as their assessment, can be used for surveys of other buildings with similar structural damage. The conducted studies will help to be used as one of the options for technical solutions necessary for the reconstruction of the facility.

scholarly journals Wind Turbulence Intensity at La Ventosa, Mexico: A Comparative Study with the IEC61400 Standards

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3007 ◽  
Author(s):  
C. Lopez-Villalobos ◽  
O. Rodriguez-Hernandez ◽  
R. Campos-Amezcua ◽  
Guillermo Hernandez-Cruz ◽  
O. Jaramillo ◽  
...  
Keyword(s):  
Wind Speed ◽  
Wind Turbines ◽  
Turbulence Intensity ◽  
Structural Damage ◽  
Atmospheric Stability ◽  
Design Parameters ◽  
Power Sector ◽  
Wind Speeds ◽  
Technical Solutions ◽  
Large Wind

Wind speed turbulence intensity is a crucial parameter in designing the structure of wind turbines. The IEC61400 considers the Normal Turbulence Model (NTM) as a reference for fatigue load calculations for small and large wind turbines. La Ventosa is a relevant region for the development of the wind power sector in Mexico. However, in the literature, there are no studies on this important parameter in this zone. Therefore, we present an analysis of the turbulence intensity to improve the understanding of local winds and contribute to the development of reliable technical solutions. In this work, we experimentally estimate the turbulence intensity of the region and the wind shear exponent in terms of atmospheric stability to analyze the relation of these design parameters with the recommended standard for large and small wind turbines. The results showed that the atmosphere is strongly convective and stable in most of the eleven months studied. The turbulence intensity analysis showed that for a range of wind speeds between 2 and 24 m/s, some values of the variable measured were greater than those recommended by the standard, which corresponds to 388 hours of turbulence intensity being underestimated. This may lead to fatigue loads and cause structural damage to the technologies installed in the zone if they were not designed to operate in these wind speed conditions.

scholarly journals Accident investigation related to the use of chainsaw

2013 ◽  
Vol 44 (2s) ◽  
Author(s):  
Sirio Rossano Secondo Cividino ◽  
Rino Gubiani ◽  
Gianfranco Pergher ◽  
Daniele Dell’Antonia ◽  
Emiliano Maroncelli
Keyword(s):  
Causative Agent ◽  
The State ◽  
The Body ◽  
Unskilled Worker ◽  
Thematic Maps ◽  
Accident Investigation ◽  
Web Based ◽  
Exposed Area ◽  
Serious Injury ◽  
Technical Solutions

Operating in woods might be highly dangerous as it takes place in hard environments because of slopes, uneven ground and the presence of the underwood that may prevent machines and operators from moving. The chainsaw is a widely-used tool in agriculture, in forestry as well as for professional and hobby-related purposes. This article has the aim to highlight the state of injuries both for professional and domestic uses. The research focused on web-based report of news published between 2007 and 2012 about mortal and non-mortal accidents occurred in Italy and involving people who were using a chainsaw. On the whole, 336 cases were collected over a 5-year period. The results of the work are represented by a series of thematic maps related to the causative agent, the age of the injured and the seat of the injury. Furthermore, it is confirmed that the operator’s head is the most exposed area of the body and is often correlated with the death of the operator (death is often due to collision against the chainsaw blade, facial traumas as well sudden contact with parts of the plant). The study shows the dangers of chainsaw. Even workers experts are involved in serious injury and death. The study highlights the needing of looking for technical solutions and specific procedures for training unskilled worker.

scholarly journals Approaches to the robotization of agricultural mobile machines

2018 ◽  
Vol 161 ◽  
pp. 03014 ◽  
Author(s):  
Vladimir Serebrenny ◽  
Madin Shereuzhev ◽  
Ivan Metasov
Keyword(s):  
High Precision ◽  
Modern Technology ◽  
The State ◽  
Agricultural Machinery ◽  
Factors Affecting ◽  
Technological Processes ◽  
Autonomous Machines ◽  
Autonomous Movement ◽  
Technical Solutions ◽  
Agricultural Machines

Agriculture is the extremely important and developing economic movement in all times. Automation of agricultural machines occurs by different ways. One way is through the creation of specialized technical solutions for the required technological processes, another way is the construction of automatic agricultural machines, including mobile ones. The state of modern technology allows to create autonomous machines. The agriculture robotization trends are the high precision and unmanned farming. The article considers the issues of robotization of agricultural machinery. Stages of robotization of agricultural mobile machines were analyzed. The factors affecting the autonomous movement of mobile agrorobots were shown.

Assuring Tube-to-Tubesheet Joint Tightness and Strength

2012 ◽  
Vol 134 (6) ◽  
Author(s):  
Stanley Yokell
Keyword(s):  
Pressure Vessel ◽  
Shear Load ◽  
Load Testing ◽  
Visual Examination ◽  
Intended Purpose ◽  
Digital Microscope

This paper describes preparing mockup tubesheet specimens for visual examination using a digital microscope to determine that tube-to-tubesheet joint welds are of the specified size and that expanded joints are satisfactory for the intended purpose. It discusses nondestructive examinations (NDE) of the tubesheets and tube joints intended to assure achieving sufficient tightness and strength to satisfy the uses to which the exchangers will be put. This paper refers to the ASME Boiler and Pressure Vessel Code (Code) paragraphs that apply to tube joint welds and expanded joints including shear load testing when the Code requires it [1]. The discussion also addresses the need for manufacturers to have qualified tube joining procedures and personnel qualified to use the qualified procedures. The work concludes with a summary of ways to assure tube joint tightness and strength.

On Gandhi and Sanitation

2019 ◽  
Vol 68 (2) ◽  
pp. 210-224
Author(s):  
P. C. Joshi ◽  
Prashant Khattri
Keyword(s):  
The State ◽  
Social Self ◽  
Political Sphere ◽  
Testing Ground ◽  
Sanitation And Hygiene ◽  
Self Rule ◽  
Technical Solutions

It was Gandhi who gave centrality to the debate on sanitation from the perspective of bio-power. The category of sanitation for him was not something to be used as a form of control but an instrument for transforming the structural caste-based hierarchy. Gandhian idea on sanitation resonates well with the anthropological notion of holism. He has visualised sanitation across the domains of soma, polis and psyche. Sanitation for Gandhi is not limited by its technical definition requiring only technical solutions but in its expansion that assumes a metaphorical significance. For Gandhi, swaraj (self-rule) in political sphere can only be achieved if there is a collective sense of sanitation and hygiene. The field of sanitation, therefore, can be seen as a testing ground for the ability and preparedness to achieve political swaraj. Sanitation reforms for him are based on reforming the collective sense of social self. This kind of reformation leads sanitation into the domain of the ‘moral-political’ that invoke collective and municipal efforts from the state to address insanitation. It is within these contexts that the article tries to understand the Gandhian philosophy on sanitation that traverses through the conceptions of bio-power, caste hierarchies, colonialism, scientism, nationalism and morality.

Rapid Visual Technique for Recovery of Mold from Beverages and Therapeutic Liquids

1965 ◽  
Vol 48 (6) ◽  
pp. 1181-1183
Author(s):  
Bob J Miller
Keyword(s):  
Glass Tube ◽  
Physical Characteristics ◽  
Visual Examination ◽  
Visual Method ◽  
Visual Technique ◽  
Extraneous Material

Abstract A visual method is presented that enables the analyst to isolate clumps of mold from dark solutions and from colored and irregular bottles and to examine the material microscopically. The solutions to be examined are passed through a glass tube for visual examination, and any observed extraneous material is deposited directly onto a slide. Physical characteristics are not altered, and all visible mold clumps can be accurately counted and measured.

scholarly journals STORMTOOLS, Coastal Environmental Risk Index (CERI) Risk and Damage Assessment App

2020 ◽  
Vol 8 (2) ◽  
pp. 129 ◽  
Author(s):  
Malcolm L. Spaulding ◽  
Annette Grilli ◽  
Chris Damon ◽  
Brian McKenna ◽  
Michael Christensen ◽  
...  
Keyword(s):  
Rhode Island ◽  
Environmental Risk ◽  
Structural Damage ◽  
Risk Index ◽  
Coastal Flooding ◽  
Development Project ◽  
The State ◽  
Environmental Data ◽  
Commercial Building ◽  
Damage Functions

STORMTOOLS Coastal Environmental Risk Index (CERI) predicts the coastal flooding damage to individual structures using coastal flooding levels, including the effects of sea level rise (SLR), provided in terms of the base flood elevation (BFE), specifications of the structure of interest (type and first floor elevation) and the associated damage functions from the U.S. Army Corp of Engineers (USACE), North Atlantic Coast Comprehensive Study (NACCS). CERI has been applied to selected coastal communities in Rhode Island, including those in Narragansett Bay and along the southern Rhode Island shoreline. Users can access the results of CERI via ArcGIS online at the CERI website. The objective of this effort was to develop, test, distribute, and evaluate a mobile phone application (App) that allows the user to assess the risk from coastal flooding and the associated damage at the individual structure level using the CERI methodology. The App is publicly available and has been developed for both iOS and Android operating systems. Environmental data to support the App, in terms of 100 y flood BFE maps, including the effects of SLR and the selected site grade elevation, are provided in the application by the URI Environmental Data Center (EDC). The user enters the location and type of the structure of interest (residential number of stories, with or without basement, pile supported or commercial building and the first-floor elevation (FFE)) and the desired SLR. The App then calculates the percent structural damage based on the specified environmental conditions and structure specifications. The App can be applied to any structure at any coastal location within the state. The CERI App development project has been guided by an Advisory Board made up of key constituents involved in coastal management and development in the state. The effort included extensive testing of the App by various user groups. The App structure makes it simple and straightforward to transfer to coastal and inland flooded areas in other locations, requiring only the specification of BFEs and grade elevations.

Recommendations for Design in Preserving Historical Buildings with Wooden Structures’ Roofs

2013 ◽  
Vol 778 ◽  
pp. 1072-1079
Author(s):  
Ângela do Valle ◽  
Natalia Biscaglia Pereira ◽  
Sergio Castello Branco Nappi
Keyword(s):  
Cultural Value ◽  
Future Generations ◽  
Historical Buildings ◽  
Heritage Preservation ◽  
Technical Issue ◽  
Governmental Agencies ◽  
Restoration Techniques ◽  
Technical Solutions ◽  
Wooden Structures ◽  
S Application

The wooden structures are most common on the roofs of historical buildings. The ancient building techniques that were employed such as the use of notched joints are no longer known today. This lack, affects the project and implementation of restoration of these structures, and demonstrates, therefore, the importance of its preservation as a legacy to future generations. As result, the decision to restore heritage structures is the key to safeguarding the cultural heritage. The designer should be aware of the consequences of choosing some intervention techniques on preserving the cultural value of the monument. The technique may harm or benefit such as the patrimonial as the technical issue, preserving its historical and cultural value, durability and safety. Although there are important technical manuals and books that refer to the restoration of ancient roof structures published by Brazilian governmental agencies, there are not references about the consequences of certain technique´s application on the patrimonial value. Thus, this work analysed, critically and reflectively, the technical solutions most commonly adopted by Brazilian designers on the restoration of the structural roofs in ancient wooden structures. This analysis will be based on principles and recommendations of the key documents and the charters of heritage preservation. After the evaluation of restoration techniques most commonly applied to restoration of roofs with wooden structures, general procedures are recommended in order to ensure the safeguarding of the heritage.

scholarly journals Methodological approaches for the state as well as a prospect analysis of the development of city water supply systems

2018 ◽  
Vol 45 ◽  
pp. 00024
Author(s):  
Anatoly Hurynovich ◽  
Vitali Baitsou
Keyword(s):  
Water Supply ◽  
Information Technologies ◽  
Small Towns ◽  
The State ◽  
Water Supply Systems ◽  
Water Wells ◽  
Methodological Approaches ◽  
City Water ◽  
Technical Solutions ◽  
Supply Systems

The need to develop methodological approaches for an analysis of the state, as well as the prospects for the development, of water supply systems in small towns is due to a comprehensive assessment of problems and the need to solve problems related to the optimization of current costs and investments. The main stages of research are considered, the result of which is the development of measures to optimize and intensify water supply systems. Methodological approaches are proposed that make it possible to obtain mathematical models adequate to the existing hydraulics of the system to the maximum possible extent: the water supply network-pumping stations-water wells. The studies are based on the use of modern information technologies for the collection of data and their processing, as well as the development of technical solutions.

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