scholarly journals FROM TLS POINT CLOUD DATA TO GEOMETRICAL GENESIS DETERMINATION OF RIBBED MASONRY VAULTS

2021 ◽  
Vol XLVI-M-1-2021 ◽  
pp. 9-16
Author(s):  
L. Agustín-Hernández ◽  
R. Argiolas ◽  
V. Bagnolo ◽  
M. Sancho Mir
Keyword(s):  
Case Studies ◽  
Laser Scanner ◽  
Cloud Data ◽  
Mediterranean Regions ◽  
Definition Of ◽  
Masonry Vaults ◽  
Single Matrix ◽  
Cloud Of Points ◽  
The Church

Abstract. The contribution aims to explore the possibility of tracing the geometry of ribbed vaults from two different Mediterranean regions to a single matrix, verifying the presence of possible local variations of the same rules. In particular, the analyses are being carried out in parallel on some case studies of the regions of Sardinia in Italy and Aragon in Spain. The two case studies include the Iglesia Parroquial del Salvador la Seo in Zaragoza and the Church of Santa Lucia in Cagliari. Both constructions can be traced back to the style known as Late Mediterranean Gothic, which characterised the architecture of the countries bordering the Mediterranean basin between the 14th and 17th centuries. The two case studies chosen were almost at the extreme ends of the Late Gothic period, to determine whether some invariants sought could persist even in relatively distant periods. The analysis focused on cross vaults covering the two naves, which included a laser scanner survey in order to obtain a cloud of points of sufficient precision to carry out studies on the geometry of the vaulted systems, the identification of the intrados profiles of the ribs and therefore the definition of the curvatures and centres of all the arches making up the vaults. Finally, the results are presented by means of summary diagrams and comparison tables.

scholarly journals GROUND BASED 3D MODELLING (PHOTOGRAMMETRY AND TLS) - SURVEY, DOCUMENTATION AND STRUCTURAL ASSESSMENT OF XX CENTURY CULTURAL HERITAGE IN INDIA – A CASE STUDY OF THE MASONRY VAULTS IN DEHRADUN

2019 ◽  
Vol XLII-2/W11 ◽  
pp. 1105-1111 ◽  
Author(s):  
G. Tucci ◽  
S. Rihal ◽  
M. Betti ◽  
A. Conti ◽  
L. Fiorini ◽  
...  
Keyword(s):  
Point Cloud ◽  
Laser Scanner ◽  
3D Modelling ◽  
Point Cloud Data ◽  
Structural Behaviour ◽  
Element Analysis ◽  
Cloud Data ◽  
Structural Evaluation ◽  
Masonry Vaults

<p><strong>Abstract.</strong> The paper presents the case study of the survey of the sail vaults of the main building of the Forest Research Institute in Dehradun. The building has been acquired with photogrammetric and laser scanner techniques during the Ground Based 3D Modelling (Photogrammetry and TLS) tutorial, at the ISPRS TC V Mid-term Symposium held in Dehradun, India in November 2018. The acquired data was then used for a structural evaluation of masonry vaults. The 3D model, built using the point cloud data, has been used in an open source finite element analysis software to develop a numerical model and comparative analyses have been carried out. The objective of numerical analysis is assessing both the benefits of structural meshes generated directly from point cloud data and the structural behaviour of the masonry vaults.</p>

State Failure and the Political Violence Phenomenon: A Comparative Analysis of Iraq and Syria Cases

2016 ◽  
Vol 4 (2) ◽  
pp. 170 ◽  
Author(s):  
K. Eylem Özkaya Lassalle
Keyword(s):  
Cold War ◽  
Political Violence ◽  
State Failure ◽  
The Political ◽  
Collective Violence ◽  
Short Run ◽  
Definition Of ◽  
The Cold War

The concept of failed state came to the fore with the end of the Cold War, the collapse of the USSR and the disintegration of Yugoslavia. Political violence is central in these discussions on the definition of the concept or the determination of its dimensions (indicators). Specifically, the level of political violence, the type of political violence and intensity of political violence has been broached in the literature. An effective classification of political violence can lead us to a better understanding of state failure phenomenon. By using Tilly’s classification of collective violence which is based on extent of coordination among violent actors and salience of short-run damage, the role played by political violence in state failure can be understood clearly. In order to do this, two recent cases, Iraq and Syria will be examined.

DEFINITION OF TIME SPENT ON REPAIR OF BUS TRANSMISSION UNITS TAKING INTO ACCOUNT TECHNOLOGICAL EQUIPMENT RELIABILITY

2020 ◽  
Vol 2020 (9) ◽  
pp. 29-33
Author(s):  
Sergey Bulatov
Keyword(s):  
Negative Impact ◽  
Probabilistic Method ◽  
Technological Equipment ◽  
Quality And Safety ◽  
Transmission Unit ◽  
Equipment Reliability ◽  
Hours Of Work ◽  
Definition Of ◽  
Time Decrease

The paper purpose is the effectiveness estimation in the technological equipment use, taking into account its reliability and productivity for defective transmission units of buses. The problem consists in the determination of time to be spent on repair of bus transmission units taking into account technological equipment reliability. In the paper there is used a probabilistic method for the prediction bus transmission units, and also a method of the dynamics of averages which allow ensuring minimum of costs for units downtime during repair and equipment cost. The need for repair of transmission units (gear box) arises on an average after 650 hours, the average productivity of the bench makes 4.2 bus / hour. The bench fails on the average after 4600 hours of work, the average time of the bench makes 2 hours. In such a way the solution of the problem specified allows analyzing the necessity of time decrease for transmission unit repair to avoid long downtimes of buses in repair areas without negative impact upon high repair quality and safety during the further operation.

SEM/EDS Characterization of Uncommon Metal Whiskers and Determination of Underlying Growth Mechanisms

2018 ◽  
Author(s):  
D. Basak ◽  
L. H. Ponce
Keyword(s):  
Reliability Analysis ◽  
Case Studies ◽  
Whisker Growth ◽  
Innovation Systems ◽  
Growth Mechanisms ◽  
Crystal Oscillator ◽  
Analysis Laboratory ◽  
Investigative Techniques

Abstract Two case-studies on uncommon metals whiskers, performed at the Reliability Analysis Laboratory (RAL) of Northrop Grumman Innovation Systems, are presented. The components analyzed are an Oven Controlled Crystal Oscillator (OCXO) and an Electromechanical Relay. Investigative techniques were used to determine the chemical and physical makeup of the metal whiskers and develop an understanding of the underlying effects and mechanisms that caused the conditions conducive to whisker growth.

Tests of jackhammers (formation of bench techniques)

2020 ◽  
pp. 28-32
Author(s):  
V.S. Vanaev
Keyword(s):  
Impact Energy ◽  
Bench Tests ◽  
Measuring Complex ◽  
Energy Indicators ◽  
Definition Of ◽  
Determination Of Parameters ◽  
Dynamic Indicators

Development of complex determination of parameters of jackhammers at bench tests is studied. The modern support of tests of jackhammers for the purpose of definition of their energy, vibration and noise indicators is considered. Descriptions of the SORP universal bench and UIPU measuring complex are given. Keywords jackhammer, bench, tests, processing object, energy indicators, impact energy, dynamic indicators [email protected]

Actual issues of valuation of businesses of the economic entity

2017 ◽  
Vol 31 (2) ◽  
pp. 156-162 ◽  
Author(s):  
O. V. Schneider
Keyword(s):  
Discount Rate ◽  
Accurate Prediction ◽  
Economic Activities ◽  
Business Valuation ◽  
Economic Entity ◽  
The World ◽  
Definition Of

The article summarizes the main approaches in the definition of business valuation the economic entity. In the process of business valuation, taking into account the risks of financial and economic activities necessary to obtain information on what stage the owner implements the business will receive income. The most difficult task is the impossibility of accurate prediction in determining the level of income and the determination of a discount rate capitalization of future incomes due to the instability of the economy, both in the country and around the world.

A Further Dilemma for British Divines

2018 ◽  
Author(s):  
Jay T. Collier
Keyword(s):  
Church Of England ◽  
International Trends ◽  
Narrow Definition ◽  
Reformed Churches ◽  
Definition Of ◽  
The Church

Chapter 5 continues to investigate the Montagu affair by surveying adjacent doctrines related to the perseverance debate. For instance, Dort’s more narrow definition of perseverance caused difficulties for those holding a more traditionalist view of baptism and regeneration. After looking at Montagu’s baptismal argument against perseverance of the saints, the chapter evaluates published responses to Montagu’s advocacy of baptismal regeneration as well as more private debates where John Davenant and Samuel Ward tried to reconcile a form of baptismal regeneration with Dort’s determination on perseverance. This survey shows division on the efficacy of baptism even within the pro-Dortian party, with readings and receptions of Augustine factoring in. It also reveals further evidence of how a broad-church approach to being Reformed set the Church of England at odds with the international trends of the Reformed churches.

Democracy and Political Culture

2019 ◽  
Author(s):  
Ross McKibbin
Keyword(s):  
Political Culture ◽  
Case Studies ◽  
Social System ◽  
Political System ◽  
Democratic Politics ◽  
Social Structures ◽  
The Political ◽  
The Subject ◽  
The One ◽  
Definition Of

This book is an examination of Britain as a democratic society; what it means to describe it as such; and how we can attempt such an examination. The book does this via a number of ‘case-studies’ which approach the subject in different ways: J.M. Keynes and his analysis of British social structures; the political career of Harold Nicolson and his understanding of democratic politics; the novels of A.J. Cronin, especially The Citadel, and what they tell us about the definition of democracy in the interwar years. The book also investigates the evolution of the British party political system until the present day and attempts to suggest why it has become so apparently unstable. There are also two chapters on sport as representative of the British social system as a whole as well as the ways in which the British influenced the sporting systems of other countries. The book has a marked comparative theme, including one chapter which compares British and Australian political cultures and which shows British democracy in a somewhat different light from the one usually shone on it. The concluding chapter brings together the overall argument.

Historical Perspectives on Innovation in Indian Business

2018 ◽  
Author(s):  
Claude Markovits
Keyword(s):  
Case Studies ◽  
Technological Innovation ◽  
Historical Perspective ◽  
Specific Context ◽  
Colonial Era ◽  
Industrial Firm ◽  
Historical Perspectives ◽  
Entire World ◽  
Definition Of ◽  
Trading Network

This chapter deals with the question of innovation in Indian business from a historical perspective. After a brief survey of the literature, emphasizing how divided scholarly opinion was regarding the existence of forms of innovation in Indian business prior to the colonial era, the focus shifts to the British period. It is shown that Schumpeter’s definition of innovation equating it with technological innovation cannot be fruitfully applied to the Indian business scene. Two case studies are then proposed: Tata Iron & Steel, the largest Indian industrial firm, is shown to have been innovative in the specific context of India’s backward industrial scene, while the Sindwork merchants of Hyderabad are an instance of an Indian trading network which extended its range to the entire world. Concluding remarks interrogate post-Independence developments and stress the limits of the innovativeness of Indian business, prior to the recent liberal reforms.

Introduction

2018 ◽  
Author(s):  
Nicholas J. Wheeler
Keyword(s):  
Case Studies ◽  
Final Section ◽  
Definition Of ◽  
Calculative Trust

This Introduction to the book does three things. First, it introduces the concept of trust and develops a definition of trust as the ‘expectation of no harm in contexts where betrayal is always a possibility’. Next, it identities two conceptions of trust that guide the book, ‘calculative trust’ and ‘trust as suspension’, which provide very different explanations for how actors form expectations that another will be trustworthy. It then shows how trust as suspension opens up a new theory of accurate signal interpretation and demonstrates how this theory is superior to costly signalling-based theories of accurate signal interpretation. The final section of the Introduction sets out the rationale for the case studies and the key assumptions.

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