Latent Defect Screening with Visually-Enhanced Dynamic Part Average Testing

Author(s):  
Anthony Coyette ◽  
Wim Dobbelaere ◽  
Ronny Vanhooren ◽  
Nektar Xama ◽  
Jhon Gomez ◽  
...  
Keyword(s):  
Author(s):  
J Y Zheng ◽  
X D Wu ◽  
Y J Chen ◽  
G D Deng ◽  
Q M Li ◽  
...  

Explosion containment vessels (ECVs) are used to fully contain the effects of explosion events. A discrete multi-layered cylindrical shell (DMC) consisting of a thin inner cylindrical shell and helically cross-winding flat steel ribbons has been proposed, which has obvious advantages of fabrication convenience and low costs. The applications of ECVs are closely associated with blast and thermal loads, and thus, it is important to understand the response of a DMC under transient thermal load in order to develop a design code and operation procedures for the use of DMC as ECV. In this paper, a mathematical model for the elastic response of a DMC subjected to thermal loading due to rapid heating is proposed. Based on the axisymmetric plane strain assumption, the displacement solution of the dynamic equilibrium equations of both inner shell and outer ribbon layer are decomposed into two parts, i.e. a thermo-elastic part satisfying inhomogeneous stress boundary conditions and a dynamic part for homogeneous stress boundary conditions. The thermo-elastic part is solved by a linear method and the dynamic part is determined by means of finite Hankel transform and Laplace transform. The thermo-elastic solution of a DMC is compared with the solution of a monobloc cylindrical shell, and numerical results are presented and discussed in terms of winding angle and material parameters.


2014 ◽  
Vol 25 (03) ◽  
pp. 275-305 ◽  
Author(s):  
ANDRZEJ EHRENFEUCHT ◽  
GRZEGORZ ROZENBERG

In this paper we extend the framework of reaction systems by introducing (extended) zoom structures which formalize a depository of knowledge of a discipline of science. The integrating structure of such a depository (which is a well-founded partial order) allows one to deal with the hierarchical nature of biology. This leads to the notion of an exploration system [Formula: see text] which consists of (1) a static part which is a depository of knowledge given by an extended zoom structure [Formula: see text], and (2) a dynamic part given by a family of reaction systems [Formula: see text]. In this setup the depository of knowledge [Formula: see text] is explored by computations/processes provided by reaction systems from [Formula: see text], where this exploration can use/integrate knowledge present on different levels (e.g., atomic, cellular, organism, species, … levels).


2013 ◽  
Vol 20 (2) ◽  
pp. 135-140 ◽  
Author(s):  
Małgorzata Lichota ◽  
Magdalena Plandowska ◽  
Patrycjusz Mil

Abstract Introduction. The human foot is an important and individual static-dynamic part of the movement apparatus. Physical activity is one of the many factors which has an impact on the arch of the foot, and specific sporting disciplines affect the morphological construction and active efficiency of the foot to differing degrees. The aim of this study was to evaluate the foot-arches of competitors training in the disciplines of athletics, handball, volleyball and taekwon-do, and to demon­strate the differences in the arching of the foot, depending on the discipline of the participant. Material and methods. Observation of a group of 46 student-competitors at the sports club of the Academic Sports Association (ASA) of the Faculty of Physical Education and Sport in Biała Podlaska, training in handball, volleyball, athletics and taekwon-do. Using information from plantograms, obtained using a podoscope, the following were analyzed: Wejsflog's indicator, the position of the big toe (hallux) - angle γ; theposition of toe V - angle β;the position of the heel - angle α. Results. The values given by Wejsflog's indicator show the presence of an asymmetry in the arch of the right foot compared to that of the left foot. The reason for this, according to Demczuk-Włodarczyk and Biec [1] may be the type of surface on which training is conducted. The authors demonstrate that fallen arches are less common in practitioners of taekwon-do, who usually train on an elastic mat, which confirms the results of earlier research conducted on competitors at the Academic Sports Association of the Faculty of Physical Education and Sport in Biała Podlaska. Conclusions. The occurrence of an abnormal formation of the arches that make up the arch of the foot, and of asymmetry in the arch between the left and right feet observed in the sample, shows the necessity of devoting greater attention to compensatory exercises that strengthen the short muscles of the foot and the muscles of the calf in the training process, in order to make up for frequently unbal­anced strain.


1998 ◽  
Vol 8 (3) ◽  
pp. 411-421 ◽  
Author(s):  
James D. Ryan

In the late thirteenth century the openness and religious toleration of the Mongol Empire created unique conditions which encouraged European missionaries to venture into Asia. The Franciscans and Dominicans who answered the call to evangelize in territories under Tartar dominion enjoyed such success by the early fourteenth century that the papacy created archbishoprics and suffragan sees in Central Asia and China, and entertained dreams of new Christian communities aligned with the Roman Church. This paper focuses on a special set of circumstances which briefly encouraged those expectations. Western missionaries to the Mongols found influential Christian women, the mothers and consorts of rulers, at the courts of several khans. Because these Mongol queens played powerful political roles, their prayers and example might encourage the conversion of their people and those subject to them. Faithful wives of pagan rulers, in times long gone, had played a dynamic part in the conversion of husbands or sons, and of their realms, thus contributing to the spread of Christianity in Europe. Once again, at the close of the thirteenth century, hopes were voiced that pious women might perform a similar task in Asia.


2016 ◽  
Vol 19 (3) ◽  
pp. 415-438 ◽  
Author(s):  
Julie Lund ◽  
Elisabeth Arwill-Nordbladh

The flexibility of material culture encourages material phenomena to take a dynamic part in social life. An example of this is material citation, which can provide society with links to both the past and connections to contemporary features. In this article, we look at the diverging ways of relating to and reinventing the past in the Viking Age, exploring citations to ancient monuments in the landscape of Gammel Lejre on Zealand, Denmark. Complementing the placement of landscape monuments, attention is also brought to examples of mortuary citations related to bodily practices in Viking-age mortuary dramas, such as those visible at the mound of Skopintull on the island of Adelsö in Lake Mälaren, Sweden. Through these case studies, we explore the variability in citational strategies found across tenth-century Scandinavia.


2021 ◽  
Author(s):  
Wenjia Hu ◽  
Shisheng Wang

In order to study calculation technology of global structure strength for the deep water typical Spar platform its global structural strength analysis is completed. The dynamic-part and a low frequency-part loads are considered in this analysis. First, according to the 100-year return storm design wave parameters are obtained through search. wave loads with design wave parameters are calculated, and are applied to the structural model built. The stresses of global structure are gotten by finite element structural analysis. Then, low frequency-part loads which include wind, current and mooring forces also are applied to the structural model. The stresses produced by low frequency-part loads are gotten by finite element structural analysis. Finally the stresses produced by dynamic-part and a low frequency-part loads are combined to form total stresses of structure of Spar, and evaluation of structural strength of Spar is made in term of the rule. Analysis method for the structural strength of the deepwater typical Spar platform can be used as reference for relative technical people.


Author(s):  
Slobodan Stanišić

The presentation presented the concept and characteristics of civil and economic contracts, as is the necessity of their distinction from the aspect of the application of maternal and procedural rights. They are analysed and compared to the solutions in terms of regulating contract contracts in the light of two opposing theoretical settings – monist, which believes that it should not be separated by civil and economic contracts and the dualist, which finds that the contracts in the economy are completely separate from the civil society contract, which is why it should be separately regulated in a special trade code, which, apart from the status and static, would contain a dynamic part concerning the contract in the economy. We looked at the criteria for determining the terms of the contract of civil rights and the economy contract, and highlighted the characteristics that make them different. Special attention is given to the notion of contract on the turnover of goods and services that have been referred to in the general deposits for trade goods, in addition to purchasing and selling of goods, replacement of goods, and business intermediation, advocacy, commissions, transportation, freight forwarding, storage and insurance.“


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