The SWORFISH Project Approach for Modeling Wood Material Modifications in Timber Structures

2013 ◽  
Vol 778 ◽  
pp. 418-423
Author(s):  
Jakub Sandak ◽  
Anna Sandak ◽  
Mariapaola Riggio ◽  
Ilaria Santoni ◽  
Dusan Pauliny
Keyword(s):  
Experimental Data ◽  
Expert Knowledge ◽  
Surface Finishing ◽  
Special Focus ◽  
Original Material ◽  
Timber Structures ◽  
Wood Material ◽  
Project Approach ◽  
Special Software ◽  
Definition Of

A special software simulating changes to wood due to various processes (either treatment or degradation) has been developed within the SWORFISH (Superb Wood Surface Finishing) project. The definition of the material modifications due to processes is based on the expert knowledge and/or experimental data. The dedicated algorithm simulates material modifications (with a special focus on surface) taking into account original material characteristics (evaluated by means of NDT techniques) and setting of process parameters. In this way, it is possible to analyze the sequence of processes (i.e. material modifications) and to estimate properties of the resulting product. Two case studies are presented for illustration of the potential uses of the SWORFISH approach in the field of timber structures.

Simultaneous heat and mass transfer during evaporation from a film of liquid into the turbulent gas

1982 ◽  
Vol 47 (3) ◽  
pp. 766-775 ◽  
Author(s):  
Václav Kolář ◽  
Jan Červenka
Keyword(s):  
Experimental Data ◽  
Mass Transfer ◽  
Liquid Film ◽  
Heat And Mass Transfer ◽  
Driving Forces ◽  
Proper Definition ◽  
Definition Of ◽  
Simultaneous Heat ◽  
Theory And Experiment

The paper presents results obtained by processing a series of published experimental data on heat and mass transfer during evaporation of pure liquids from the free board of a liquid film into the turbulent gas phone. The data has been processed on the basis of the earlier theory of mechanism of heat and mass transfer. In spite of the fact that this process exhibits a strong Stefan's flow, the results indicate that with a proper definition of the driving forces the agreement between theory and experiment is very good.

scholarly journals Reactivity in social scientific experiments: what is it and how is it different (and worse) than a Placebo effect?

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
María Jiménez-Buedo
Keyword(s):  
Experimental Data ◽  
Conceptual Framework ◽  
Placebo Effect ◽  
Placebo Effects ◽  
Causal Inferences ◽  
Scientific Experiments ◽  
Social Scientific ◽  
The Many ◽  
Definition Of ◽  
In Virtue Of

AbstractReactivity, or the phenomenon by which subjects tend to modify their behavior in virtue of their being studied upon, is often cited as one of the most important difficulties involved in social scientific experiments, and yet, there is to date a persistent conceptual muddle when dealing with the many dimensions of reactivity. This paper offers a conceptual framework for reactivity that draws on an interventionist approach to causality. The framework allows us to offer an unambiguous definition of reactivity and distinguishes it from placebo effects. Further, it allows us to distinguish between benign and malignant forms of the phenomenon, depending on whether reactivity constitutes a danger to the validity of the causal inferences drawn from experimental data.

Measurement of Angular Acceleration of a Rigid Body Using Linear Accelerometers

1975 ◽  
Vol 42 (3) ◽  
pp. 552-556 ◽  
Author(s):  
A. J. Padgaonkar ◽  
K. W. Krieger ◽  
A. I. King
Keyword(s):  
Experimental Data ◽  
Rigid Body ◽  
Simple Procedure ◽  
Three Dimensional ◽  
Angular Acceleration ◽  
Theory And Practice ◽  
Body Segments ◽  
Impact Biomechanics ◽  
The Stability ◽  
Definition Of

The computation of angular acceleration of a rigid body from measured linear accelerations is a simple procedure, based on well-known kinematic principles. It can be shown that, in theory, a minimum of six linear accelerometers are required for a complete definition of the kinematics of a rigid body. However, recent attempts in impact biomechanics to determine general three-dimensional motion of body segments were unsuccessful when only six accelerometers were used. This paper demonstrates the cause for this inconsistency between theory and practice and specifies the conditions under which the method fails. In addition, an alternate method based on a special nine-accelerometer configuration is proposed. The stability and superiority of this approach are shown by the use of hypothetical as well as experimental data.

International Telecommunication Union

1957 ◽  
Vol 11 (3) ◽  
pp. 538-538
Keyword(s):  
Experimental Data ◽  
Technical Assistance ◽  
Study Groups ◽  
Great Difficulty ◽  
Consultative Committee ◽  
Sufficient Time ◽  
International Telecommunication Union ◽  
International Telecommunication ◽  
Definition Of ◽  
New System

The eighth plenary assembly of the International Radio Consultative Committee (CCIR) was held in Warsaw from August 9 to September 13, 1956, under the chairmanship of Professor Pawel Szulkin (Poland). The assembly elected with an absolute majority Dr. E. Metzler (Switzerland) as Director. The assembly considered a report which dealt with the activities of the fourteen established study groups as well as proposals to reorganize the study groups. The Warsaw decisions modifying procedures experimentally for the future were the outcome of proposals by the Organization and Finance Committees, the CCIR Secretariat and of discussions of the problem in the plenary assembly. The study groups were to remain the same in number and the allocation of work was in general the same, though it was felt desirable to give a more precise definition of their terms of reference. Among the resolutions adopted by the assembly, a number dealt with the length, content and quantity of documents submitted to the chairmen of the study groups, emphasizing that these should be as short as possible, as few as possible and that they should contain only the minimum indispensable mathematical formulae or numerical and experimental data. The new system was also expected to improve the position of distant countries which had so far experienced great difficulty in receiving preliminary documentation in sufficient time before plenary assemblies. The Technical Assistance Committee recommended the creation of a joint CCIR-International Telegraph and Telephone Consultative Committee (CCITT) committee to consider the ways and means whereby technical assistance was at present granted and to make suggestions for improvements, as far as telecommunication was concerned, to the ITU Administrative Council.

scholarly journals STRATEGIC DEVELOPMENT OF RESTAURANT BUSINESS VINNYTSIA

2021 ◽  
pp. 43-56
Author(s):  
Uliya STAVSKA
Keyword(s):  
Service Sector ◽  
Core Competencies ◽  
Service Economy ◽  
Territorial Development ◽  
Strategic Development ◽  
Project Approach ◽  
Local Budget ◽  
Definition Of ◽  
Combined Strategy ◽  
The City

The article provides an essential description of the concept of «service economy», defines its difference from the «industrial economy». Approaches to the definition of the term «restaurant business» are considered. Taking into account the specifics of the restaurant business, it is proposed to use the concept of «service landscape», which provides comfort of the institution, convenience of its location, perfection of interior, quality of service, implementation and use of innovative technologies of restaurant business. During the study, the algorithm and methodological basis for choosing a strategy for the development of the service economy sector of the region - restaurant business, based on identifying its prospects and attractiveness and allow on a systematic basis to link the prerequisites and conditions of enterprise development with restaurant product differentiation. As a result of the morphological analysis, the restaurants of the city of Vinnytsia were identified by the type of competitive behavior. This allowed to develop a combined strategy for the development of the city's restaurant business, which is based on the formation of compatibility of key market competencies with the core competencies of the restaurant business. The study the consequences of the strategy for the development of the restaurant business in Vinnytsia, which will improve the tourist infrastructure of the city, increase the number of employees in the service sector and, accordingly, tax revenues to the local budget, as well as improve cultural leisure opportunities for residents and guests. The combination of realization of the project-target approach of development of restaurant business with program-target methods of management of territorial development is substantiated. Projects for the development of the restaurant business have been developed in two directions: projects for the differentiation of the restaurant product and projects for strengthening the service landscape, focused on the development of a culture of restaurant service and innovative ways of serving customers. It is established that the implementation of the developed combined strategy for the development of the restaurant business in Vinnytsia with the use of a project approach will increase the share of turnover of the restaurant business and achieve a number of positive socio-economic results.

scholarly journals Modelowanie układów sterowania z użyciem pochodnych ułamkowych

2020 ◽  
pp. 33-50
Author(s):  
Grzegorz Dec ◽  
Keyword(s):  
Experimental Data ◽  
System Theory ◽  
Control System ◽  
Fractional Order ◽  
Fractional Derivatives ◽  
System Control ◽  
Current State ◽  
Function Definition ◽  
Definition Of ◽  
State Of Art

In the paper is presented review of some approaches corelated with subject of using fractional derivatives in control system theory. Popular algorithms used in the industry are presented, along with relating designing methodology. Using of fractional derivatives calculations is relatively new concept, but constantly getting increasing interest. Deliberation in recent years indicate that many scientific problems like thermodynamic or biology problems can be well considered and modeled by fractional order derivatives. On the market there is available tools that support a processes of identification and regulators designing, based on experimental data. One of such tools are toolbox CRONE for MATLAB, which contains three modules: mathematical, identifying, system control designing. That toolbox allows implementation of CRONE regulators with different level of complexity. Other tool is FOMCON, which also is a toolbox for MATLAB and it is based on already existed toolbox FOTF. FOMCON allows to identifying of control system and PIλDµ regulator designing. This article is aiming to present current state of art, discussion about existing tools and concepts correlated with fractional order derivatives and their usage in control system theory, like: gamma function, definition of fractional derivative, Laplace transform and basics of control system theory.

scholarly journals Professional Opinions And Attitudes On Tax Policy In Bosnia And Herzegovina With A Special Focus On The Federation Of Bosnia And Herzegovina

2015 ◽  
Vol 10 (2) ◽  
pp. 29-44 ◽  
Author(s):  
Lejla Lazović-Pita ◽  
Ana Štambuk
Keyword(s):  
Bosnia And Herzegovina ◽  
Tax Policy ◽  
Income Tax ◽  
Value Added ◽  
Special Focus ◽  
Tax Reforms ◽  
Tax Base ◽  
Excise Duty ◽  
Efficiency Principle ◽  
Definition Of

Abstract This research is based on tax policy opinion survey data collected in Bosnia and Herzegovina (B&H) among tax experts. A special focus of the survey was to investigate the consequences of the different institutional environments that exist between the two entities of the country. After having reviewed all previous tax reforms in B&H, the most interesting results suggest that respondents agree on the introduction of a progressive personal income tax (PIT) and excise duty on luxury products, the maintenance of personal and family allowances and the maintenance of the current value added tax (VAT) and corporate income tax (CIT) rates. However, differences exist in the respondents’ perceptions about the introduction of reduced VAT rates, the regressivity of the VAT, and giving priority to the equity principle over the efficiency principle in taxation. Probability modelling highlighted these differences and indicated inconsistencies in the definition of the PIT tax base, namely the comprehensiveness of the PIT base under the S-H-S definition of income.

Microcrystalline Cellulose/Polyurethane Wood Material Preparation and Properties Research

2016 ◽  
Vol 851 ◽  
pp. 122-126
Author(s):  
Wen Kai Zhu ◽  
Yan Wu ◽  
Xiao Yu Hui ◽  
Xiao Tang Wang ◽  
Kun Li Cao
Keyword(s):  
Experimental Data ◽  
Fourier Transform ◽  
Microcrystalline Cellulose ◽  
Tensile Force ◽  
Wood Material ◽  
Compression Performance ◽  
Shape Variable ◽  
Before And After ◽  
Fracture Shape ◽  
Material Preparation

The microcrystalline cellulose (MCC) was used as the filler to modify the properties of polyurethane (PU) woodlike material. As we can see from the experimental data, with the gradually increase the amount of MCC added, polyurethane fracture shape variable and the maximum tensile force also increase accordingly, but due to its large density effect on the performance of other, So MCC to improve the effect of polyurethane compression performance is not very big; Through before and after the modification of Fourier transform infrared spectroscopy, the modification of polyurethane materials in amino carbonyl ester peak, so that MCC and polyurethane chemical reaction happened.

Characterizing Opioid Overdoses Using Emergency Medical Services Data

2021 ◽  
Vol 136 (1_suppl) ◽  
pp. 62S-71S
Author(s):  
Josie J. Sivaraman ◽  
Scott K. Proescholdbell ◽  
David Ezzell ◽  
Meghan E. Shanahan
Keyword(s):  
Machine Learning ◽  
North Carolina ◽  
Emergency Medical Services ◽  
Expert Knowledge ◽  
Case Definition ◽  
Medical Services ◽  
Opioid Overdose ◽  
Machine Learning Classification ◽  
Emergency Medical ◽  
Definition Of

Objectives Tracking nonfatal overdoses in the escalating opioid overdose epidemic is important but challenging. The objective of this study was to create an innovative case definition of opioid overdose in North Carolina emergency medical services (EMS) data, with flexible methodology for application to other states’ data. Methods This study used de-identified North Carolina EMS encounter data from 2010-2015 for patients aged >12 years to develop a case definition of opioid overdose using an expert knowledge, rule-based algorithm reflecting whether key variables identified drug use/poisoning or overdose or whether the patient received naloxone. We text mined EMS narratives and applied a machine-learning classification tree model to the text to predict cases of opioid overdose. We trained models on the basis of whether the chief concern identified opioid overdose. Results Using a random sample from the data, we found the positive predictive value of this case definition to be 90.0%, as compared with 82.7% using a previously published case definition. Using our case definition, the number of unresponsive opioid overdoses increased from 3412 in 2010 to 7194 in 2015. The corresponding monthly rate increased by a factor of 1.7 from January 2010 (3.0 per 1000 encounters; n = 261 encounters) to December 2015 (5.1 per 1000 encounters; n = 622 encounters). Among EMS responses for unresponsive opioid overdose, the prevalence of naloxone use was 83%. Conclusions This study demonstrates the potential for using machine learning in combination with a more traditional substantive knowledge algorithm-based approach to create a case definition for opioid overdose in EMS data.

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