Dynamic methods in plasma physics

1982 ◽  
Vol 138 (11) ◽  
pp. 361 ◽  
Author(s):  
Vladimir E. Fortov
Keyword(s):  
Plasma Physics ◽  
Dynamic Methods

ANALYSIS AND APPLICATION OF BIOMETRIC AUTHENTICATION METHODS IN AUTOMATED SYSTEM OF INDUSTRIAL ENTERPRISE RESOURCE PROTECTION

2020 ◽  
Vol 2020 (8) ◽  
pp. 47-52
Author(s):  
Nataliya Kuznetsova ◽  
Tatyana Karlova ◽  
Aleksandr Bekmeshov
Keyword(s):  
Point Of View ◽  
Industrial Enterprise ◽  
Automated System ◽  
General Level ◽  
Biometric Authentication ◽  
Complex Approach ◽  
Dynamic Methods ◽  
Resource Protection ◽  
Efficiency Increase ◽  
Secret Knowledge

The work purpose consists in the efficiency increase of automated system operation for industrial enterprise resource protection at the expense of the optimization of authentication method application, in particular, biometric one. To achieve the purpose it is necessary to solve the problem of efficient joint use of modern authentication methods, particularly, a static and dynamic biometric authentication. But biometric methods are most expensive from the point of view of their realization. In this connection, within the limits of the paper there is carried out the analysis of modern methods of biological authentication from the point of view of a special order of introduction and joint use. In the paper there is shown a classification of static and dynamic methods for biometric authentication, an example of method combination in the authentication module is presented, there are considered and analyzed the latest methods, in particular, those based on DNA investigations, thermograms of a face and hands (static), gestures (dynamic). The work novelty consists in the presented diagram of authentication module operation. As a conclusion it should be noted that modern authentication systems offer the application of a complex approach: use both biometric methods and other ones for authentication in modules, in particular, based on secret knowledge and material carrier possession. The approach mentioned will allow minimizing the errors of the first and the second kinds, increasing a general level of safety.

Monitoring the encapsulation of chlorin e6 derivatives into polymer carriers by NMR spectroscopy

2019 ◽  
Vol 23 (11n12) ◽  
pp. 1576-1586 ◽  
Author(s):  
Sara Pfister ◽  
Luca Sauser ◽  
Ilche Gjuroski ◽  
Julien Furrer ◽  
Martina Vermathen
Keyword(s):  
Relaxation Time ◽  
Nmr Spectroscopy ◽  
Core Region ◽  
Chlorin E6 ◽  
Polypropylene Glycol ◽  
Polymer Carriers ◽  
H Nmr ◽  
Line Shape Analysis ◽  
Dynamic Methods ◽  
Derivatives Of

The encapsulation of five derivatives of chlorin e6 with different hydrophobicity and aggregation properties into a series of five poloxamer-type triblock copolymer micelles (BCMs) with varying numbers of polyethylene and polypropylene glycol (PEG, PPG) units was monitored using 1H NMR spectroscopy. NMR chemical shift and line shape analysis, as well as dynamic methods including diffusion ordered spectroscopy (DOSY) and T1 and T2 relaxation time measurements of the chlorin and the polymer resonances, proved useful to assess the chlorin–BCM compatibility. The poloxamers had high capability to break up aggregates formed by chlorins up to intermediate hydrophobicity. Physically entrapped chlorins were always localized in the BCM core region. The loading capacity correlated with chlorin polarity for all poloxamers among which those with the lowest number of PPG units were most efficient. DOSY data revealed that relatively weakly aggregating chlorins partition between the aqueous bulk and micellar environment whereas more hydrophobic chlorins are well retained in the BCM core region, rendering these systems more stable. T1 and T2 relaxation time measurements indicated that motional freedom in the BCM core region contributes to encapsulation efficiency. The BCM corona dynamics were rather insensitive towards chlorin entrapment except for the poloxamers with short PEG chains. The presented data demonstrate that 1H NMR spectroscopy is a powerful complementary tool for probing the compatibility of porphyrinic compounds with polymeric carriers such as poloxamer BCMs, which is a prerequisite in the development of stable and highly efficient drug delivery systems suitable for medical applications like photodynamic therapy of tumors.

scholarly journals Social validity of a contextual behavioral science-based intervention for retirement education

2019 ◽  
Vol 32 (1) ◽  
Author(s):  
Leonardo Martins Barbosa ◽  
Sheila Giardini Murta
Keyword(s):  
Behavioral Science ◽  
Social Validity ◽  
Negative Effects ◽  
Acceptance And Commitment ◽  
Dynamic Methods ◽  
The Social ◽  
Group 3 ◽  
Group 2 ◽  
Negative Impacts ◽  
Contextual Behavioral Science

AbstractThe literature shows that retirement can bring both positive and negative effects. However, there are few tested interventions for preparing workers for this transition and avoiding or minimizing its negative impacts. This paper presents a study with multiple groups that examined the social validity of an intervention for retirement education grounded in contextual behavioral science and acceptance and commitment therapy. Twenty-seven workers aged 29 to 65 divided into three intervention groups participated (group 1, N = 15; group 2, N = 9; group 3, N = 3). According to the participants’ evaluations, the intervention provided socially valid goals, socially acceptable procedures, and socially important effects. However, some improvements are still needed, such as the use of more dynamic methods, better formatted printed material, and increased fidelity between the content’s implementation and the prescribed activities. The positive results indicate that contextual behavioral science may bolster the development of interventions whose components possess evidence for their social validity. The further evaluation of the intervention via a clinical trial study will offer more robust evidence for its effectiveness. It is hoped that by increasing the availability of theory-based interventions in this area, the present study will promote valid strategies to facilitate better adjustment to retirement.

Dynamic assessment and requesting: Assessing the development of Japanese EFL learners’ oral requesting performance interactively

2020 ◽  
Vol 17 (5) ◽  
pp. 545-575
Author(s):  
Allan Nicholas
Keyword(s):  
Conversation Analysis ◽  
Dynamic Assessment ◽  
Task Type ◽  
Efl Learners ◽  
Coding Scheme ◽  
Dynamic Methods ◽  
Two Phases ◽  
Japanese Learners ◽  
Development Analysis ◽  
Insight Into

AbstractThis study investigates the use of dynamically-administered strategic interaction scenarios (D-SIS) in identifying Japanese EFL participants’ difficulties with requesting-in-interaction, and tracking their development. Informed by conversation analysis research, six Japanese EFL learners at a university in Japan carried out D-SIS tasks in two phases, with the aim of both identifying specific aspects of requesting-in-interaction that were challenging, and learner development. Analysis focuses on three particular areas of difficulty that arose for participants during the dialogic interactions—connecting request turn utterance linguistic choices to social context; pre-request expansions of requesting talk, and pre-closing sequences. A coding scheme was applied that analyzed mediation sequences in terms of the efficiency with which participants oriented to and resolved problems, allowing ZPD movement to be quantified. In combination with close qualitative analysis of the transcript data, mediation sequences provided insights into the participants’ knowledge and understanding of these areas that would not have been gained through non-dynamic methods. Results therefore provide insight into areas of difficulty for Japanese learners with regards to requesting, and provide support for the use of the D-SIS task type as a diagnostic tool in regards to request-based talk-in-interaction.

Evaluation of computational fluid dynamic methods for reactor safety analysis (ECORA)

2005 ◽  
Vol 235 (2-4) ◽  
pp. 359-368 ◽  
Author(s):  
M. Scheuerer ◽  
M. Heitsch ◽  
F. Menter ◽  
Y. Egorov ◽  
I. Toth ◽  
...  
Keyword(s):  
Computational Fluid Dynamic ◽  
Fluid Dynamic ◽  
Safety Analysis ◽  
Reactor Safety ◽  
Dynamic Methods

scholarly journals Influence of Prior Distributions and Fragility assessment methods in the estimation of the Magnitude of a Historical Seismic Event

2018 ◽  
Vol 149 ◽  
pp. 02038 ◽  
Author(s):  
Eduardo Charters Morais ◽  
László Gergely Vigh ◽  
János KrÄhling
Keyword(s):  
Stone Masonry ◽  
Fragility Functions ◽  
Backbone Curve ◽  
Prior Distributions ◽  
Magnitude Distribution ◽  
Structural Capacity ◽  
Capacity Spectrum ◽  
Distance Distributions ◽  
Dynamic Methods ◽  
Modelling Strategies

The production of fragility functions describing the probable behaviour and damage on historical buildings is a key step in a method for the estimation of the magnitude of historical seismic events that uses a Bayes'. The fragilities are estimated by integrating the structural capacity with the seismic demand using either static methods, as the Capacity Spectrum Method (CSM), or dynamic methods, as Incremental Dynamic (IDA) and Multiple Stripes Analysis (MSA). Uncertainties in both resistance, demand, and distance and magnitude models propagate to the posterior magnitude distribution. The present paper studies the effect of uncertainties related both to the production of fragility functions and prior distributions, in the estimation of the magnitude of the 1763 Komárom earthquake (in historical Hungary). In the XVIII century most of the structures in the region were built of earth, adobe, clay or stone masonry, which is complex to model. While micro or detailed macro-modelling strategies are computationally costly, simplified macro-approaches are often more efficient, but require a pre-identification of the failure mode(s) and the determination of the backbone curve. For this study, a simplified macro-model of a Hungarian peasant house archetype is calibrated for CSM and IDA. The physical and geometrical uncertainties are incorporated in the fragilities using Monte-Carlo simulation. Prior magnitude and distance distributions are studied. The final magnitude estimates are presented and discussed.

Flume tank and in situ trials for verification of static and dynamic methods for gear depth and underwater behavior of hairtail trolling lines

2018 ◽  
Vol 84 (6) ◽  
pp. 939-952
Author(s):  
Gebremeskel Eshetu Kebede ◽  
Chun Woo Lee ◽  
Subong Park ◽  
Mun Kwan Kim
Keyword(s):  
Dynamic Methods

scholarly journals Skin-fixed scapula trackers: A comparison of two dynamic methods across a range of calibration positions

2011 ◽  
Vol 44 (10) ◽  
pp. 2004-2007 ◽  
Author(s):  
Joe A.I. Prinold ◽  
Aliah F. Shaheen ◽  
Anthony M.J. Bull
Keyword(s):  
Dynamic Methods
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