scholarly journals Comprehensive Uncertainty Quantification in Nuclear Safeguards

2017 ◽  
Vol 2017 ◽  
pp. 1-16 ◽  
Author(s):  
E. Bonner ◽  
T. Burr ◽  
T. Krieger ◽  
K. Martin ◽  
C. Norman
Keyword(s):  
Uncertainty Quantification ◽  
Nuclear Material ◽  
Nuclear Safeguards ◽  
Calibration Data ◽  
Material Loss ◽  
Uncertainty In Measurement ◽  
Relative Standard ◽  
Detection Probabilities ◽  
Main Components ◽  
The Impact

Nuclear safeguards aim to confirm that nuclear materials and activities are used for peaceful purposes. To ensure that States are honoring their safeguards obligations, quantitative conclusions regarding nuclear material inventories and transfers are needed. Statistical analyses used to support these conclusions require uncertainty quantification (UQ), usually by estimating the relative standard deviation (RSD) in random and systematic errors associated with each measurement method. This paper has two main components. First, it reviews why UQ is needed in nuclear safeguards and examines recent efforts to improve both top-down (empirical) UQ and bottom-up (first-principles) UQ for calibration data. Second, simulation is used to evaluate the impact of uncertainty in measurement error RSDs on estimated nuclear material loss detection probabilities in sequences of measured material balances.

scholarly journals Bayesian Updating of Material Balances Covariance Matrices Using Training Data

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
T. Burr ◽  
M.S. Hamada
Keyword(s):  
Measurement Errors ◽  
Control Process ◽  
Quantitative Measure ◽  
Nuclear Material ◽  
Statistical Testing ◽  
Training Data ◽  
Nuclear Safeguards ◽  
Training Period ◽  
Material Loss ◽  
Normal Behavior

The main quantitative measure of nuclear safeguards effectiveness is nuclear material accounting (NMA), which consists of sequences of measured material balances that should be close to zero if there is no loss of special nuclear material such as Pu. NMA is essentially “accounting with measurement errors,” which arise from good, but imperfect, measurements. The covariance matrix MB of a sequence of material balances is the key quantity that determines the probability to detect loss. There is a recent push to include process monitoring (PM) data along with material balances from NMA in new schemes to monitor for material loss. PM data includes near-real-time measurements by the operator to monitor and control process operations. One concern regarding PM data is the need to estimate normal behavior of PM residuals, which requires a training period prior to ongoing testing for material loss. Assuming that a training period is used for PM data prior to its use in statistical testing for loss, that same training period could also be used for improving the estimate of MB that is used in NMA. We consider updating MB using training data with a Bayesian approach. A simulation study assesses the improvement gained with larger amounts of training data.

MODERN PROBLEMS OF ACCOUNTING AND ANALYTICAL ENSURING FINANCIAL RESULTS MANAGEMENT

2020 ◽  
Author(s):  
Yuliia Peniak ◽  
◽  
Nataliia Horokhovatska ◽  
Keyword(s):  
Performance Management ◽  
Enterprise Management ◽  
Goods And Services ◽  
Financial Condition ◽  
General Evaluation ◽  
Net Profit ◽  
Business Entities ◽  
Results Management ◽  
Main Components ◽  
The Impact

The main purpose of any enterprise in the market economy is to obtain high financial results. One of the main conditions for the effective functioning of the enterprise is ability to generate profit in the amount that will create the financial basis for further development and expansion of the enterprise, comply with social and material needs, ensure competitiveness in the market of goods and services. The need for accounting and analytical management of financial results stems from needs of owners, the state and employees in information that will enable them to identify patterns and trends in financial results, identify and assess the main factors influencing the process of their creation, distribution and usage, identify reserves and thus increase the level of profitability. Despite the significant scientific contribution in the field of research of financial results of the enterprises, the issue of improvement aims to the accounting and analytical maintenance of management of financial results of the enterprise remains actual. That is why the purpose of the study is to substantiate the theoretical and practical aspects and develop approaches to improving the mechanism of formation of accounting and analytical support for the management of financial results of the enterprise. Accounting and analytical management of financial results of the enterprise is a set of interconnected elements of production and management system, activities carried out by the subject of management, creation of a certain structure, as well as collection, accumulation, storage and analysis of information necessary for effective operation of the enterprise. The main components of the study of accounting and analytical support of financial performance management are the formation of methods of analysis, control and forecasting of financial results, which requires specification of the components of the analytical and controlled process within the organizational and information model. Namely, the formation of reliable information about the financial condition of the enterprise, the analysis of economic indicators of the enterprise is of great importance in the system of general evaluation of business entities. Their research makes it possible to assess the dynamics of the structure of income and expenses, to determine the impact of factors on the company's profit from various activities, as well as to find reserves to increase the net profit of enterprises. Thus, the improvement of accounting and analytical support of enterprise management is based on the use of modern forms, methods and principles that place new demands on the formation of unbiased, complete, timely, clear and useful accounting and analytical information about the enterprise and its financial results.

TEACH-POT: Provide Opportunities in Teaching

2020 ◽  
pp. 79-91 ◽  
Author(s):  
Maria Giulia Ballatore ◽  
Ettore Felisatti ◽  
Laura Montanaro ◽  
Anita Tabacco
Keyword(s):  
Academic Community ◽  
Real Effect ◽  
The Real ◽  
Main Components ◽  
The Impact ◽  
Training Opportunities ◽  
Different Levels

This paper is aimed to describe and critically analyze the so-called "TEACHPOT" experience (POT: Provide Opportunities in Teaching) performed during the last few years at Politecnico di Torino. Due to career criteria, the effort and the time lecturers spend in teaching have currently undergone a significant reduction in quantity. In order to support and meet each lecturers' expectations towards an improvement in their ability to teach, a mix of training opportunities has been provided. This consists of an extremely wide variety of experiences, tools, relationships, from which everyone can feel inspired to increase the effectiveness of their teaching and the participation of their students. The provided activities are designed around three main components: methodological training, teaching technologies, methodological experiences. A discussion on the findings is included and presented basing on the data collected through a survey. The impact of the overall experience can be evaluated on two different levels: the real effect on redesigning lessons, and the discussion on the matter within the entire academic community.

FORMATION OF HUMAN CAPITAL IN THE DIGITAL TRANSFORMATION PARADIGM

2020 ◽  
Vol 2 (5) ◽  
pp. 115-119
Author(s):  
M. V. SAVINA ◽  
◽  
A. A. STEPANOV ◽  
I.A. STEPANOV ◽  
◽  
...  
Keyword(s):  
Human Capital ◽  
Digital Age ◽  
Digital Transformation ◽  
Educational Process ◽  
Knowledge And Skills ◽  
Main Components ◽  
The Impact ◽  
Modern Era

The article highlights the problems of the impact of "digitalization" of society on the formation and transformation of human capital, and above all, the development of new competencies, knowledge and skills. The main components of human capital in the modern era, the features of the formal and informal educational process are clarified and disclosed. The necessity of minimizing the precariat class is proved. The main directions of qualitative improvement of human capital adequate to the challenges of the digital age and globalization are defined.

On the Evaluation and Consideration of Fracture Mechanical Notch Support Within a Creep Fatigue Lifetime Assessment

2018 ◽  
Author(s):  
Christian Kontermann ◽  
Henning Almstedt ◽  
Falk Müller ◽  
Matthias Oechsner
Keyword(s):  
Fatigue Loading ◽  
Experimental Program ◽  
Energy Market ◽  
Steam Turbines ◽  
Fatigue Lifetime ◽  
Global Strain ◽  
Creep Fatigue ◽  
Main Components ◽  
Flexible Operation ◽  
The Impact

Changes within the global energy market and a demand for a more flexible operation of gas- and steam-turbines leads to higher utilization of main components and raises the question how to deal with this challenge. One strategy to encounter this is to increase the accuracy of the lifetime assessment by quantifying and reducing conservatisms. At first the impact of considering a fracture mechanical notch support under creep-fatigue loading is studied by discussing the results of an extensive experimental program performed on notched round-bars under global strain control. A proposal how to consider this fracture mechanical notch support within a lifetime assessment is part of the discussion of the second part. Here, a theoretical FEM-based concept is introduced and validated by comparing the theoretical prediction with the results of the previously mentioned experimental study. Finally, the applicability of the developed and validated FEM-based procedure is demonstrated.

SILICON ON RAISED INSULATOR FIELD EFFECT DIODE (SORI-FED) FOR ALLEVIATING SCALING PROBLEM IN FED

2014 ◽  
Vol 28 (05) ◽  
pp. 1450038 ◽  
Author(s):  
MAHDI VADIZADEH ◽  
MORTEZA FATHIPOUR ◽  
GHAFAR DARVISH
Keyword(s):  
Delay Time ◽  
Field Effect ◽  
Channel Length ◽  
Gate Delay ◽  
Electrical Characteristics ◽  
Band To Band Tunneling ◽  
Main Components ◽  
Channel Lengths ◽  
Length Scaling ◽  
The Impact

One of the main shortcomings in a field effect diode (FED) is its scaling. Use of an oxide layer in the channel is proposed to enhance the control of the gate on the channel carriers. This is the so-called silicon on raised insulator FED (SORI-FFD) structure. The Shockley–Read–Hall (SRH) mechanism is one of the main components of leakage current in FED devices. The potential induced by the gates in the OFF-state of a SORI-FFD, is larger than that induced by the gates of a regular FED. This reduces, SRH recombination rate. Hence, OFF-state characteristics of the SORI-FED device improves. We evaluate the impact of band-to-band tunneling (BTBT) on the electrical characteristics of Modified FED (M-FED).We show that for channel lengths of 35 nm and lower this device does not turn off. While, the proposed structure makes device channel length scaling possible down to 15 nm. We will also compare electrical characteristics of SORI-FED and M-FED using three metrics: gate delay time versus channel length, gate delay time versus I ON /I OFF ratio and energy-delay product versus channel length. Benchmarking results show the proposed FED structure provides improvement in I ON /I OFF ratio and holds promise for future logic transistor applications.

scholarly journals Simple Spectrophotometric Method for Determination of Paroxetine in Tablets Using 1,2-Naphthoquinone-4-Sulphonate as a Chromogenic Reagent

2009 ◽  
Vol 2009 ◽  
pp. 1-8 ◽  
Author(s):  
Ibrahim A. Darwish ◽  
Heba H. Abdine ◽  
Sawsan M. Amer ◽  
Lama I. Al-Rayes
Keyword(s):  
Spectrophotometric Method ◽  
Correlation Coefficients ◽  
Molar Absorptivity ◽  
Official Method ◽  
Calibration Data ◽  
Pharmaceutical Tablets ◽  
Relative Standard ◽  
Label Claim ◽  
Colored Product

Simple and rapid spectrophotometric method has been developed and validated for the determination of paroxetine (PRX) in tablets. The proposed method was based on nucleophilic substitution reaction of PRX with 1,2-naphthoquinone-4-sulphonate (NQS) in an alkaline medium to form an orange-colored product of maximum absorption peak () at 488 nm. The stoichiometry and kinetics of the reaction were studied, and the reaction mechanism was postulated. Under the optimized reaction conditions, Beer's law correlating the absorbance (A) with PRX concentration (C) was obeyed in the range of 1–8 g . The regression equation for the calibration data was: A = 0.0031 + 0.1609 C, with good correlation coefficients (0.9992). The molar absorptivity () was L  1 . The limits of detection and quantitation were 0.3 and 0.8 g , respectively. The precision of the method was satisfactory; the values of relative standard deviations did not exceed 2%. The proposed method was successfully applied to the determination of PRX in its pharmaceutical tablets with good accuracy and precisions; the label claim percentage was %. The results obtained by the proposed method were comparable with those obtained by the official method.

scholarly journals – The impact of the requirements of the business continuity in the Sustainability performance of the company relying strategy of risk management– A case Study in Al- Fayha / Basra branch Ready Construction Co limited: تأثير متطلبات استمرارية الأعمال في الأداء المستدام للمنظمة باعتماد استراتيجية إدارة المخاطر– دراسة حالة في شركة الفيحاء لصناعة البناء الجاهز المحدودة / البصرة –

2019 ◽  
Vol 3 (6) ◽  
Author(s):  
Iman Askar Hawi
Keyword(s):  
Risk Management ◽  
Quantitative Methods ◽  
Business Continuity ◽  
Sustainability Performance ◽  
Strategic Role ◽  
Interactive Relationship ◽  
Main Components ◽  
The Impact

  Purpose: This study is intended to improve the Sustainability performance in the Al- Fayha / Basra branch Ready Construction Co limited relationship between the strategy of risk management and requirements of the business continuity and investigation of the findings. Methodology: Making up a conceptual model of the business continuity tracks flow in the Al- Fayha / Basra branch Ready Construction Co limited The model is based on the interactive relationship between the risk management and requirements of the business continuity of Some help was available quantitative methods, relying on a combination of descriptive and quantitative approaches, in order for the accuracy of the results. results: the Al- Fayha / Basra branch Ready Construction Co limited been the subject matter of the research. It lacks the conceptual pattern that systemizes , integrates and directs its main components towards a comprehensive improvement of the company. In addition it requires relative interest in the strategic role of the strategy of risk management and its dual effects on both the business continuity and the Sustainability performance of the Company. The main recommendations were to identify the risks that affect the business continuity of the company, to control them in order to achieve full response to all business continuity requirements.    

scholarly journals Simulation of the impact of economic development on social development of the country

2020 ◽  
Vol 18 (3) ◽  
pp. 37-54
Author(s):  
Olena Rayevnyeva ◽  
Iryna Aksonova ◽  
Olha Brovko ◽  
Stanislav Filip
Keyword(s):  
Economic Development ◽  
Social Development ◽  
Economic Condition ◽  
Statistical Research ◽  
The Social ◽  
Main Components ◽  
Algorithmic Model ◽  
The Impact ◽  
The Relationship ◽  
Significant Factors

In the current conditions of development of the international and national economy, an important task of statistical research is to conduct an objective and timely assessment and modeling of the relationship between indicators of economic and social development. Based on the results of these studies, reasonable management influences of the state on the adjustment and regulation of the country’s development are accepted. The article is devoted to the study of the relationship between the main components of economic and social development of the country and the construction of a set of models for forecasting the prospects of the country. The object of the study is the socio-economic condition of the country. The article proposes an algorithmic model for assessing the impact of economic development on society, which allows to identify key economic indicators that influence and shape the social development of the country. The practical value of the algorithmic model is to develop a system of evaluation and selection as a result of modeling the most significant factors that shape the social development of the country. The study confirmed the hypothesis of the dominant impact of economic development on society and determined that the main economic factors are the level of competencies that satisfy the modern labour market, technical development of businesses and their competitiveness in markets.

scholarly journals Investigating the influence of nano-economy management channels on global transformations in the world

2021 ◽  
Vol 3 (13 (111)) ◽  
pp. 18-30
Author(s):  
Tetiana Ostapenko ◽  
Oleksandr Onopriienko ◽  
Iryna Hrashchenko ◽  
Elvira Danilova
Keyword(s):  
Transition Economies ◽  
Global Environment ◽  
Self Management ◽  
Economic Agents ◽  
The World ◽  
Human Economy ◽  
Business Entities ◽  
Main Components ◽  
Favorable Conditions ◽  
The Impact

The problem under investigation is determined by the fact that enterprises consist of separate economic agents that play an increasingly important role in production processes and their management. The channels of such management provide the transfer of positive experience of the totality of economic agents to the global environment. Due to the permanent process of transformations in the world caused by this influence, the probability of being on the sidelines is a problem for most business entities. Their competitiveness and integration into the world economic networks depend on high-quality management and wide application of innovative technologies, including nanotechnologies. The conducted study revealed that: – nano-economy consists of baby economy, human economy, and the economy of nanotechnologies; – the human economy is the central link and the main leader of the impact of nano-economy on global markets. The main components of its management are self-management, self-marketing, and innovative management of the organization personnel; – nanotechnologies, the economics of nanotechnologies, and transfer of nano-knowledge are at the initial stage of their development; – the impact of nano-economy on the development of the global environment is carried out through the functions of nanomanagement; – the management channels of the nano-economy do not affect the entry of countries with transition economies into the global environment due to the fact that they lack the system of nano-economy. This is proved by multifactor analysis of the impact of nano-economy on exports. The obtained indicators, such as exports of USD 57 billion (by the exchange rate of 2021), 281 universities, 1,941,701 business entities, and 135 thousand scientific and technical institutions, do not correlate and determine low direct and inverse indicators of dependence. The results of the study can be used: – at separate enterprises – by using innovative personnel management, including motivating and training of personnel in self-management and self-marketing;  – at the state and regional levels – by creating favorable conditions for the development of baby economy in countries with transition economies and by promoting optimal solutions of separate economic agents

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