scholarly journals ON THE ROLE OF THE EXTERNAL ENVIRONMENT IN THE FORMATION OF THE ROOT LAYER OF THE WELD IN ARC WELDING

2020 ◽  
pp. 55-59
Author(s):  
P. P. Krasikov ◽  
A. V. Savinov ◽  
O. A. Polesskiy ◽  
A. A. Chudin ◽  
L. S. Krasikova ◽  
...  
Keyword(s):  
Arc Welding ◽  
External Environment ◽  
Geometric Parameters ◽  
Welding Joints ◽  
Stable Formation

The possibility of replacing, blowing argon into flux paste, when welding joints with free formation, where it is technically impossible to use other techniques and methods of welding, providing stable formation with minimum geometric parameters of the back bead, is shown.

scholarly journals Hegemonic Distortions: The Securitisation of the Insurgency in Thailand's Deep South

2019 ◽  
Vol 7 (2) ◽  
pp. 209-232
Author(s):  
Nicole Jenne ◽  
Jun Yan Chang
Keyword(s):  
External Environment ◽  
Southeast Asian ◽  
Deep South ◽  
Internal Security ◽  
Current Period ◽  
Security Challenges ◽  
Islamist Terrorism ◽  
Political Decisions

AbstractThe conflict between the Thai state and the Malay-Muslim insurgency in the country's Deep South is one of Southeast Asia's most persistent internal security challenges. The start of the current period of violence dates back to the early 2000s, and since then, a significant number of studies exploring the renewed escalation have been published. In this study, we argue that existing scholarship has not adequately accounted for the external environment in which political decisions were taken on how to deal with the southern insurgency. We seek to show how the internationally dominant, hegemonic security agenda of so-called non-traditional security (NTS) influenced the Thai government's approach to the conflict. Building upon the Copenhagen School's securitisation theory, we show how the insurgency became securitised under the dominant NTS narrative, leading to the adoption of harsh measures and alienating discourses that triggered the escalation of violence that continues today. The specific NTS frameworks that ‘distorted’ the Thai state's approach of one that had been informed solely by local facts and conditions were those of anti-narcotics and Islamist terrorism, albeit in different ways. Based on the findings from the case study, the article concludes with a reflection on the role of the hegemonic NTS agenda and its implications for Southeast Asian politics and scholarship.

scholarly journals The Role of Geometric Parameters in the Prediction of Abdominal Aortic Aneurysm Wall Stress

2010 ◽  
Vol 39 (1) ◽  
pp. 42-48 ◽  
Author(s):  
E. Georgakarakos ◽  
C.V. Ioannou ◽  
Y. Kamarianakis ◽  
Y. Papaharilaou ◽  
T. Kostas ◽  
...  
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Wall Stress ◽  
Geometric Parameters ◽  
Aneurysm Wall ◽  
Abdominal Aortic ◽  
Abdominal Aortic Aneurysm Wall

scholarly journals Analysis of the influence of position of welding materials on the FSW seams properties for three dissimilar aluminium alloy

2018 ◽  
Vol 178 ◽  
pp. 03003 ◽  
Author(s):  
Ana Bosneag ◽  
Marius Adrian Constantin ◽  
Eduard Niţu ◽  
Monica Iordache
Keyword(s):  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Process Parameters ◽  
Arc Welding ◽  
Welding Process ◽  
Dissimilar Materials ◽  
Workpiece Material ◽  
Friction Stir ◽  
Welding Joints ◽  
Welding Materials

Friction Stir Welding, abbreviated FSW is a new and innovative welding process. This welding process is increasingly required, more than traditional arc welding, in industrial environment such us: aeronautics, shipbuilding, aerospace, automotive, railways, general fabrication, nuclear, military, robotics and computers. FSW, more than traditional arc welding, have a lot of advantages, such us the following: it uses a non-consumable tool, realise the welding process without melting the workpiece material, can be realised in all positions (no weld pool), results of good mechanical properties, can use dissimilar materials and have a low environmental impact. This paper presents the results of experimental investigation of friction stir welding joints to three dissimilar aluminium alloy AA2024, AA6061 and AA7075. For experimenting the value of the input process parameters, the rotation speed and advancing speed were kept the same and the position of plates was variable. The exit date recorded in the time of process and after this, will be compared between them and the influence of position of plate will be identified on the welding seams properties and the best position of plates for this process parameters and materials.

scholarly journals THEORETICAL AND METHODOLOGICAL APPROACHES TO EVALUATION OF INVESTMENT ATTRACTIVENESS OF REGIONS OF UKRAINE

2021 ◽  
Author(s):  
Liudmyla Sokolova ◽  
Anita Lytvynova
Keyword(s):  
Mathematical Modeling ◽  
Public Administration ◽  
External Environment ◽  
Comparative Assessment ◽  
Financial Resources ◽  
Its Regions ◽  
Methodological Approaches ◽  
Statistical Indicators ◽  
Integral Indicator

Currently, when the Ukrainian economy is developing in an unstable, uncertain, aggressive, dynamic external environment, there is an urgent need to increase the level of investment attractiveness of each region of the country and, as a consequence, the need to increase attention to scientific and methodological support for assessing the integral indicator of investment attractiveness region. In connection with the decentralization of public administration in Ukraine, the role of local authorities in improving the socio-economic situation of its regions is increasing. In the context of real limited financial resources in the country, the problem of increasing the level of investment attractiveness of each region is becoming urgent as a characteristic that allows active investors to form an idea of the state of potential investment objects, as well as ensuring the reliability of obtaining the expected results. It should be noted that the choice of assessment indicators is subjective and depends on the goal of the investor. Such a format for solving this problem requires an assessment of the investment attractiveness of regions based on economic and mathematical modeling. Although there are many developments in this area, today there is no single effective method for assessing the investment attractiveness of the region. The work reveals the essence of the concept of investment attractiveness of a region, defines the methodological provisions of its assessment, the implementation of which requires the use of certain data from official regional statistics. Based on the basic local statistical indicators of the Kharkov, Kiev and Odessa regions of the country, a comparative assessment of their investment attractiveness was carried out. The methodological approaches and parameters determining the investment attractiveness of the regions of Ukraine have been analyzed. The information on the level of investment attractiveness of Kharkiv, Kiev and Odessa regions in 2019 has been systematised, the integral indicator of its evaluation has been defined. In the future, it is recommended to calculate the integral indicator of investment attractiveness for all regions of the country in dynamics.

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