Search results for "TENSION"
showing 10 items of 2456 documents
A route to simple nonionic surfactants
2016
AbstractA method for the synthesis of nonionic surfactants – N-alkyl-O-(2-hydroxyethyl) carbamates is proposed by acylation of fatty amines with ethylene carbonate without any solvent or catalyst. The surface tension of the prepared surfactants was measured, toxicity and biodegradability were determined for the surfactant with n-dodecyl as a hydrophobic group and N-monosubstituted amide and hydroxyl groups for their hydrophilic part.
Contributions of mean and shape of blood pressure distribution to worldwide trends and variations in raised blood pressure: A pooled analysis of 1018…
2018
Background: Change in the prevalence of raised blood pressure could be due to both shifts in the entire distribution of blood pressure (representing the combined effects of public health interventions and secular trends) and changes in its high-blood-pressure tail (representing successful clinical interventions to control blood pressure in the hypertensive population). Our aim was to quantify the contributions of these two phenomena to the worldwide trends in the prevalence of raised blood pressure. Methods: We pooled 1018 population-based studies with blood pressure measurements on 88.6 million participants from 1985 to 2016. We first calculated mean systolic blood pressure (SBP), mean dia…
Exact extension of the DIRECT algorithm to multiple objectives
2019
The direct algorithm has been recognized as an efficient global optimization method which has few requirements of regularity and has proven to be globally convergent in general cases. direct has been an inspiration or has been used as a component for many multiobjective optimization algorithms. We propose an exact and as genuine as possible extension of the direct method for multiple objectives, providing a proof of global convergence (i.e., a guarantee that in an infinite time the algorithm becomes everywhere dense). We test the efficiency of the algorithm on a nonlinear and nonconvex vector function. peerReviewed
Gear classification and fault detection using a diffusion map framework
2015
This article proposes a system health monitoring approach that detects abnormal behavior of machines. Diffusion map is used to reduce the dimensionality of training data, which facilitates the classification of newly arriving measurements. The new measurements are handled with Nyström extension. The method is trained and tested with real gear monitoring data from several windmill parks. A machine health index is proposed, showing that data recordings can be classified as working or failing using dimensionality reduction and warning levels in the low dimensional space. The proposed approach can be used with any system that produces high-dimensional measurement data. peerReviewed
Similar and equal relationships? Negotiating bisexuality in an enduring relationship
2015
In the public debate in Finland, same-sex couples’ right to legal recognition is routinely defended by stressing their sameness to heterosexual couples within the discourse of romantic love. This article explores how bisexual women and their partners use these discourses. The five couple interviews were analyzed by implementing discourse analysis. The results highlight how, when taking positions within the discourse of the enduring couple relationship, the interviewees drew on the discourse of romantic love. Woman’s bisexuality disappeared easily in this talk. Although it seemed effortless at first sight, negotiations and affective tensions arose when the interviewees tried to fit their re…
Teachers’ Identity Tensions and Related Coping Strategies : Interaction With the Career Stages and Socio-Political Context
2022
When external requirements conflict with teachers’ personal beliefs and values, the resulting internal struggles can lead to identity tensions. Contributing to discussion on teachers’ identity development in a challenging context, this study investigated teacher identity tensions and related coping strategies in Hong Kong. We conducted 21 semi-structured interviews with qualified teachers and then performed a deductive thematic analysis of the data. We categorised the identity tensions as positioned on the micro or macro level, and distinguished the coping strategies as emotion-focused or problem-focused behaviours. The identity tensions and related coping strategies seemed to be associated…
DETERMINAZIONE DELLE TENSIONI RESIDUE IN GIUNTI FSW A T MEDIANTE METODO DEL CUT-COMPLIANCE
2009
In questo lavoro è stato applicato il metodo del cut-compliance (CC) per la determinzazione delle tensioni residue in giunti friction stir welding (FSW) saldati con una forma T. È riconosciuto che il metodo del CC fornisce ottimi risultati per i giunti di testa la cui geometria è simile al provino CT per prove di fatica. In letteratura, tuttavia, non è presente alcuna applicazione di questo metodo a forme differenti da quelle del giunto di testa poiché non sono note le funzioni di peso e di forma per differenti geometrie. Per tale motivo, sono state effettuate delle simulazioni agli elementi finiti per stimare le funzioni di forma e di peso considerando la geometria dei giunti FSW saldati a…
Rationality, experiences or identity work? Sensemaking of emotionally tense experiences of organizational sustainability
2021
Purpose Although emotional tensions related to organizational sustainability have been identified, little is known about how employees aim to resolve such situations. This study aims to explore how employees use sensemaking to resolve emotionally tense situations concerning organizational sustainability. Design/methodology/approach The authors studied a case in which, while employees attached positive emotions to organizational sustainability, external stakeholders viewed it negatively. Specifically, the study analyzed how employees used sensemaking to resolve such tense experiences and how this sensemaking eventually influenced their actions. To this end, the authors interviewed 25 employ…
Controllo pressorio e farmaci anti-ipertensivi in 490 pazienti con malattia renale cronica e ipertensione arteriosa
2008
超越宣告性模式和判决主义模式* ———麦考密克对“法律推理和法律理论”的重新思考
2019
This paper offers a diachronic reconstruction of MacCormick’s theory of law and legal argumentation: In particular，two related points will be highlighted in which the difference between the perspective upheld in Legal Reasoning and Legal Theory and the later writings is particularly marked． The ? rst point concerns MacCormick’s gradual break with legal positivism，and more speci? cally the thesis that the implicit pretension to justice of law proves legal positivism false in all its different versions． The second point concerns MacCormick’s acceptance of the one－right－answer thesis and the consequent thinning of the differences between MacCormick’s theory of legal reasoning and that of Ronal…