scholarly journals Assessment Methods of Partnering Relations of Polish, Slovak and Ukrainian Construction Enterprises with the Use of Fuzzy Logic / Metodyka Oceny Relacji Partnerskich Polskich, Słowackich I Ukrainskich Przedsiebiorstw Budowlanych Z Wykorzystaniem Logiki Rozmytej

2011 ◽  
Vol 57 (1) ◽  
pp. 87-118 ◽  
Author(s):  
E. Radziszewska-Zielina
Keyword(s):  
Fuzzy Logic ◽  
Construction Industry ◽  
Mathematical Analysis ◽  
Research Result ◽  
Assessment Methods ◽  
Construction Enterprises ◽  
Methods Of Analysis ◽  
Definition Of

Abstract The paper shows methods of analysis and assessment of partnering relations of construction enterprises with the use of questionnaires, statistics, and fuzzy logic. The results were obtained from Polish, Slovak and Ukrainian enterprises. The definition of partnering in the construction industry indicates that it is a qualitative concept. By applying a scale in the questionnaire, and due to mathematical analysis of the data, the final research result, showing the level of partnering relations of construction enterprises, is rendered quantitatively

scholarly journals INSTRUMENTS FOR CASH FLOW MANAGEMENT OF CONSTRUCTION ENTERPRISES

2020 ◽  
pp. 223-229
Author(s):  
Mariya Nashkerska ◽  
Nataliia Patriki
Keyword(s):  
Construction Industry ◽  
Cash Flow ◽  
Financial Stability ◽  
Cash Flows ◽  
Flow Management ◽  
Construction Enterprise ◽  
Cash Flow Management ◽  
Construction Enterprises ◽  
Payment Schedule ◽  
Definition Of

Introduction. Financial state of the construction enterprise, level of its financial stability, creditworthiness and liquidity depend on the availability of current assets, net cash flow (positive or negative), which is formed in the course of conducting payment transactions. The subject of the research is the flow of money of the construction enterprise. The research objectives: identifying the causes of current assets constraints at the construction industry enterprises; using projected cash flow budget and payment schedule as instruments of managing the enterprise cash flow. The purpose of the article is to determine the instruments for cash flow management of construction enterprises, taking into account the peculiarities of their activities. Method (methodology). The article suggests developing projected cash flow budgets and payment schedule to manage cash flows more efficiently (prevent negative net cash flow) based on estimates made by construction enterprises to determine the construction cost. The purpose of the payment schedule is to determine the flow of funds for the next day and the current week as a supplement and detailing of the projected cash flow budget. Research results. The use of the projected cash flow budget and payment schedule at the construction industry enterprises will help the management team to control the incoming and outgoing cash flows, form the data base for making decisions on the efficient use of funds. It will also promote the search for additional funding sources of the enterprise activity in the period of budget deficit as well as pre-justified investment of capital in the period of budgetary surplus Thus, the formation of projected cash flow budgets and payment schedule can be an important instrument for efficient cash flow management of construction enterprises. The method of formation of mutually agreed forecast budget of cash flow and payment calendar with definition of indicators of their efficiency in management of cash flows and a financial condition of the enterprise as a whole needs further improvement. The technique of forming mutually agreed projected cash flow budget and payment schedule along with the definition of their efficiency indicators in managing cash flows and the overall enterprise financial state requires further improvement.

Control Reversal Effects on Swept-Back Wings

1949 ◽  
Vol 1 (1) ◽  
pp. 3-34
Author(s):  
Haydn Templeton
Keyword(s):  
Mathematical Analysis ◽  
Quantitative Estimation ◽  
Dynamic Condition ◽  
Loss Of Control ◽  
General Introduction ◽  
Mathematical Basis ◽  
Control Power ◽  
Physical Picture ◽  
The Subject ◽  
Definition Of

SummaryAileron reversal effects on swept-back wings in general and elevon reversal effects on tailless swept-back wings in particular are discussed on a non-mathematical basis, attention being confined to the orthodox flap type of control. The main purpose of the paper is to convey in the simplest terms possible a clear physical picture of the conditions producing loss of control power, emphasis being naturally laid upon the part played by structural wing distortion. Certain qualitative features relating to the two phenomena are also discussed. As a general introduction to the discussion on aileron reversal effects, the definition of “aileron power” in relation to the actual dynamic condition of rolling is described at some length. For elevon reversal effects on tailless aircraft the effect of wing flexibility on both “elevon power” and on trim in steady symmetric flight is considered. With the descriptive treatment adopted the analysis is of necessity broad and general but is designed to appeal to those not too familiar with the subject. The results of certain calculations on a hypothetical wing, which may be of interest, are included. A mathematical analysis for the quantitative estimation of both aileron and elevon reversal effects is given in the Appendix.

Food Allergy-Related Bullying Among Children and Adolescents

2021 ◽  
Author(s):  
Frances Cooke ◽  
Ashley Ramos ◽  
Linda Herbert
Keyword(s):  
Food Allergy ◽  
Social Inclusion ◽  
Assessment Method ◽  
Assessment Methods ◽  
Clinical Trial Registration ◽  
Single Item ◽  
Parents And Children ◽  
Bullying Experiences ◽  
Definition Of ◽  
Parent Child

Abstract Objective Food allergy (FA) management requires youth to avoid allergens and carry emergency medication which can impact participation in social activities. Previous research indicates that some youth experience FA-related bullying, but many studies are limited by single-item assessment methods and a narrow definition of bullying. This study describes FA-related bullying among a diverse cohort of youth with FA and evaluates parent–child disagreement and bullying assessment methods. Methods Youth ages 9–15 years (n = 121) diagnosed with an IgE-mediated FA and their primary caregivers were recruited from pediatric FA clinics to complete surveys about their FA-related bullying experiences. Descriptive statistics were conducted to assess overall FA-related bullying and McNemar tests were utilized to assess disagreement among parent–child report and between multi-item and single-item assessment methods. Results Seventeen percent and 31% of youth reported FA-related bullying on single-item and multi-item assessments, respectively. Twelve percent of parents reported their child had experienced FA-related bullying. Youth reported overt physical (51%), overt non-physical (66%), and relational FA-related bullying (20%). FA-related bullying was most common among classmates. Assessment method significantly affected the rates of FA-related bullying reported by youth, and parents and youth only agreed on FA-bullying experiences when assessed via the single-item measure. Conclusions A subset of a diverse sample of youth with FA reported FA-related bullying. Clinicians should use multi-item assessment methods and ask both parents and children about their experiences to fully capture the experiences of families managing FA. School policies that facilitate FA safety and social inclusion should be promoted. Clinical Trial Registration N/A.

Integrating Indigenous enterprises into the Australian construction industry

2017 ◽  
Vol 24 (5) ◽  
pp. 788-808 ◽  
Author(s):  
George Denny-Smith ◽  
Martin Loosemore
Keyword(s):  
Construction Industry ◽  
Scale Up ◽  
Social Enterprises ◽  
Indigenous Populations ◽  
Indigenous Research ◽  
Business Networks ◽  
Barriers To Entry ◽  
Content Type ◽  
Construction Enterprises ◽  
Normal Work

Purpose The purpose of this paper is to explore the barriers to entry for Indigenous businesses into the Australian construction industry. Design/methodology/approach A national survey was conducted with 33 Indigenous businesses operating in the Australian construction industry. Findings The findings show that Indigenous enterprises face similar challenges to many small non-Indigenous enterprises wishing to enter the industry. These include adjusting to unique construction industry cultures and practices, breaking into existing business networks and building social capital and being under-cut by industry incumbents and competitors when tendering for projects. These barriers are similar to those faced by other non-Indigenous social enterprises, although Indigenous enterprises do appear to experience relatively greater difficulty in starting-up their businesses and in securing sufficient capital, finance and assistance to enable them to scale-up and tender for normal work packages at a competitive price. Research limitations/implications The results are limited to Australian Indigenous businesses. The survey does not allow a comparison of non-Indigenous and Indigenous businesses, although comparison of results with existing non-Indigenous research into small to medium-sized firms in construction does allow some tentative insights. These need to be explored further. Practical implications These results indicate that there are significant barriers to be addressed within the Australian construction industry if government indigenous procurement policies are to achieve their stated aims of increasing the number of Indigenous firms in the industry. The results also have important implications for Indigenous businesses and for non-Indigenous firms operating in the Australian construction industry. Social implications This is an important gap in knowledge to address if countries like Australia are to redress the significant inequalities in income and health suffered by Indigenous populations. Originality/value In countries like Australia, with significant Indigenous populations, governments are seeking to address persistent disadvantage by using new social procurement initiatives to create quasi construction markets for Indigenous enterprises to participate in the construction industry. While there is an emerging body of research into the barriers facing mainstream small to medium-sized enterprises and, to a lesser extent, social enterprises in construction, the barriers to entry facing Indigenous construction enterprises have been largely ignored.

Strategies in Using Building Information Modeling (BIM) to Solve Problems in Project Management of Chinese Construction Enterprises

2014 ◽  
Vol 501-504 ◽  
pp. 2700-2705 ◽  
Author(s):  
Li Shen ◽  
Ya Xing Lin
Keyword(s):  
Project Management ◽  
Construction Industry ◽  
Building Information Modeling ◽  
Information Modeling ◽  
Construction Enterprises ◽  
Building Information

The application of Building Information Modeling has become a trend in construction industry, it is our duty to accelerate BIM application in recent years. Firstly, the paper generally introduced the concepts and characteristics of BIM, and pointed out the problems that existed in Chinas Project Management of Construction Enterprises, and theoretically, technically discussed the solutions to these issues with BIM technology in a qualitative way. At last, the paper proposed some suggestions and outlooks for the development and promotion of BIM technology in China.

scholarly journals DETERMINING OF TECHNOLOGICAL EFFECTIVENESS OF BUILDING SYSTEMS BY AHP METHOD

2004 ◽  
Vol 10 (4) ◽  
pp. 135-141 ◽  
Author(s):  
Romualdas Ginevičius ◽  
Valentinas Podvezko ◽  
Algirdas Andruškevičius
Keyword(s):  
Construction Industry ◽  
Building Materials ◽  
Pairwise Comparison ◽  
Construction Technology ◽  
Ahp Method ◽  
Suggested Approach ◽  
Construction Enterprise ◽  
Construction Enterprises ◽  
Building Systems ◽  
Technological Effectiveness

The successful performance of construction enterprises as well as their competitiveness are largely determined by the construction technology and management methods used. In this respect two levels referring to a building or structure itself and to a construction enterprise as a whole should be distinguished. The technology of a building or structure embraces its construction system generally characterizing building materials, design solutions and load‐bearing structures and enclosures used in the construction of this particular building. The problem of selecting a general technological criterion for the whole construction enterprise arises. A construction enterprise fulfilling its annual program can simultaneously construct buildings and structures based on various construction systems, i.e. it can use various technologies. Searching for an integrated criterion to describe an enterprise as a whole three main issues including the variation of the applied technologies and their volumes and technological effectiveness should be taken into consideration. In the paper the problem of determining technological effectiveness of construction systems is considered. A method of pairwise comparison developed by T. Saaty was used to address this problem. The calculations were made for all thirteen technologies currently used in Lithuanian construction industry. Based on the suggested approach the weight of technological effectiveness was determined for each of them in the parts of one.

DEVELOPMENT OF MODELS FOR DIAGNOSTIC DIABETES BASED ON FUZZY LOGIC METODS

2021 ◽  
pp. 90-95
Author(s):  
Евгений Николаевич Коровин ◽  
Екатерина Ивановна Новикова ◽  
Олег Валерьевич Родионов
Keyword(s):  
Mathematical Modeling ◽  
Decision Making ◽  
Information Technology ◽  
Fuzzy Logic ◽  
Human Body ◽  
Patient Information ◽  
Decision Making Process ◽  
Speed Up ◽  
Definition Of

В статье рассматриваются разработки методов интеллектуальной поддержки процесса диагностики сахарного диабета, а также определение его типа. В последние годы количество людей, страдающих данным заболеванием, неуклонно растет, а без своевременной диагностики эта патология может нанести огромный вред организму человека. Сахарный диабет 1 типа опасен тем, что в основном возникает у людей молодого возраста. Оперативное обнаружение диабета, а также определение его типа, поможет не только избежать возможных осложнений, но и в некоторых случаях предотвратить смерть пациента. Информационные технологии все чаще используются в различных сферах деятельности для разработки новых или совершенствования существующих методов обработки данных, особенно это можно заметить в сфере медицины. В настоящее время врач самостоятельно ставит диагноз, основываясь на результатах различных анализов, однако, для ускорения процесса принятия решения, можно воспользоваться методами математического моделирования, а именно: моделями диагностики диабета на основе нечеткой логики. Для наибольшего удобства данный способ распознавания заболевания впоследствии можно реализовать в информационно-программное обеспечение, которое сможет еще больше увеличить эффективность и скорость распознавания патологии The article discusses the issues of the incidence of diabetes in the population, in particular, the definition of its type. In recent years, the number of people suffering from this disease has been steadily growing, and without timely diagnosis, this pathology can cause enormous harm to the human body. Prompt detection of diabetes, as well as determination of its type, will help not only avoid possible complications, but also in some cases prevent the death of the patient. Information technology is increasingly being used in various fields of activity to develop new or improve existing methods of data processing, especially in the field of medicine. Currently, the doctor independently makes a diagnosis based on the results of various analyzes, however, to speed up the decision-making process, you can use the methods of mathematical modeling, namely, models of diabetes diagnostics based on fuzzy logic. For the greatest convenience, this method of disease recognition can subsequently be implemented in information software, which can further increase the efficiency and speed of pathology recognition

Proposal for a Total Fatigue Life Assessment Methodology That Predicts Fatigue Life From Defect Initiation to Through Wall Leak

2020 ◽  
Author(s):  
Joseph Batten ◽  
Chris Currie ◽  
Jonathan Mann ◽  
Andrew Morley
Keyword(s):  
Fatigue Life ◽  
Effective Strain ◽  
Strain Range ◽  
Assessment Methods ◽  
Life Assessment ◽  
Assessment Methodology ◽  
Traditional Assessment ◽  
Fatigue Life Assessment ◽  
Definition Of

Abstract Even with improvements to remove excessive conservatisms, current fatigue assessment approaches can result in high Cumulative Usage Factors (CUFs) for some analyses. In order to improve plant availability from these assessments and mitigate future changes to design codes, an improvement in understanding in this area is desirable. Hence the proposal for a Life Assessment Methodology (LAM) was created. The LAM is a concept for an approach based on modelling each stage of fatigue life to predict total fatigue life, as a means of minimising conservatism in an assessment, where necessary. It should also be capable of incorporating statistical methods to assign reliability figures to calculated plant lives. This paper describes the proposed definition of the LAM and how a proof of concept version of the LAM was developed to assess the Bettis Bechtel Stepped Pipe (BBSP) test. The results were presented with two seeded cases (fixed inputs) and a range of lives corresponding to associated Target Reliabilities (TRs). The Best Estimate (BE) and TR associated lives produced were based on using the latest methods available for calculating Fatigue Initiation (FI) and Fatigue Crack Growth (FCG), whereas the seeded Effective Strain Range (ESR) comparison case used current deterministic assessment methods. The results for the case study concluded that there is a benefit to pursuing the development of the LAM when compared to traditional assessment methods. It highlighted and quantified the conservatism present in traditional assessment methods for these cases as well as the need to understand the required TR for a specific component as this can have a large effect on the predicted life. With further refinements to the method, a more realistic and robust output of the total fatigue life distribution (for specific cases) would be obtained, which in turn would allow us to better quantify the conservatism associated with a TR.

Mathematics Based on Fuzzy Logic

2017 ◽  
Author(s):  
Radim Bělohlávek ◽  
Joseph W. Dauben ◽  
George J. Klir
Keyword(s):  
Fuzzy Logic ◽  
Mathematical Analysis ◽  
Classical Logic ◽  
Mathematical Reasoning ◽  
Narrow Sense ◽  
And Mathematics ◽  
Truth Degrees

Mathematical reasoning is governed by the laws of classical logic, based on the principle of bivalence. With the acceptance of intermediate truth degrees, the situation changed substantially. This chapter begins with a characterization of mathematics based on fuzzy logic, an identification of principal issues of its development, and an outline of this development. It then examines the role of fuzzy logic in the narrow sense for developing mathematics based on fuzzy logic and the main approaches developed toward its foundations. Next, some selected areas of mathematics based on fuzzy logic are presented, such as the theory of sets and relations, algebra, topology, quantities and mathematical analysis, probability, and geometry. The chapter concludes by examining various semantic questions regarding fuzzy logic and mathematics based on it.

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