Universal grey number theory for the uncertainty presence of wiper structural system

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Zhiqiang Liang ◽  
Xintian Liu ◽  
Wang Yansong ◽  
Xiaolan Wang
Keyword(s):  
Number Theory ◽  
Comparative Analysis ◽  
Design Methodology ◽  
Structural System ◽  
Kinematics Analysis ◽  
Accurate Analysis ◽  
Interval Method ◽  
Content Type ◽  
Grey Number

Purpose This study aims to accurately evaluate the influence of various error intervals on the performance of the wiper. Design/methodology/approach The wiper structural system is decomposed into classical four-link planar for kinematics analysis, and it was modeled respectively by using interval method, universal grey number theory and enumeration approach depending on the nature of uncertainty. Findings The universal grey number theory is a viable methodology for the accurate analysis of uncertain structural system. Originality/value (1) The model of uncertain wiper structural system is established. (2) Universal grey number theory and new parameters are adopted to analyze the presence of uncertain wiper structural system. (3) Comparative analysis of response quantities is obtained by interval method, universal grey number theory and enumeration method.

A comparative analysis of grey ranking approaches

2019 ◽  
Vol 9 (4) ◽  
pp. 472-487 ◽  
Author(s):  
Davood Darvishi ◽  
Jeffrey Forrest ◽  
Sifeng Liu
Keyword(s):  
Decision Making ◽  
Comparative Analysis ◽  
Partial Order ◽  
Design Methodology ◽  
Total Order ◽  
Interval Numbers ◽  
Content Type ◽  
Important Decision ◽  
Grey Number ◽  
Order Kernel

Purpose Ranking and comparing grey numbers represent a very important decision-making procedure in any given grey environment. The purpose of this paper is to study the existing approaches of ordering interval grey numbers in the context of decision making by surveying existing definitions. Design/methodology/approach Different methods developed for comparing grey numbers are presented along with their disadvantages and advantages in terms of comparison outcomes. Practical examples are employed to show the importance and necessity of using appropriate methods to compare grey numbers. Findings Most the available methods are not suitable for pointing out which number is larger when the nuclei of the grey numbers of concern are the same. Also, these available methods are also considered in terms of partial order and total order. Kernel and degree of greyness of grey numbers method is more advantageous than other methods and almost eliminates the shortcomings of other methods. Originality/value Different methods for ranking grey numbers are presented where each of them has disadvantages and advantages. By using different methods, grey interval numbers are compared and the results show that some methods cannot make grey number comparisons in some situations. The authors intend to find a method that can compare grey numbers in any situation. The findings of this research can prevent errors that may occur based on inaccurate comparisons of grey numbers in decision making. There are various research studies on the comparison of grey numbers, but there is no research on the comparison of these methods and their disadvantages, advantages or their total or partial order.

scholarly journals Effective contracting for high operational performance in projects

2019 ◽  
Vol 39 (2) ◽  
pp. 294-325 ◽  
Author(s):  
Maria Kapsali ◽  
Jens K. Roehrich ◽  
Pervaiz Akhtar
Keyword(s):  
Comparative Analysis ◽  
Fuzzy Set ◽  
Design Methodology ◽  
Qualitative Comparative Analysis ◽  
Operational Performance ◽  
Future Research ◽  
Content Type ◽  
Contractual Incompleteness ◽  
Managerial Implications ◽  
Practical Implications

Purpose The purpose of this paper is to examine combinations of contract clauses in order to ascertain which combinations correlate to high operational performance (OP). Design/methodology/approach Two hypotheses were formulated from contracting theory and tested on data collected from 45 projects. Fuzzy set qualitative comparative analysis was used and validated with multiple regression and simulation. Findings The hypotheses were tested to determine whether combinations of classical, relational, and/or associational contract clauses correlate to high OP. The results show that whereas high OP correlates to combinations of relational and associational contract clauses, classical and relational clauses should not be combined. Research limitations/implications Directions are proposed to guide future research in order to produce a more nuanced testing of contractual complementarity. Practical implications The managerial implications of the findings include a more thorough understanding of the use of contract clauses and of which clauses managers should combine to achieve high OP. Originality/value This study contributes to the theory of contractual incompleteness and complementarity, specifically in the context of project contracting. The analysis produced two theoretical implications: first, that better performing contracts are created when combining relational and associational contract clauses; and second, that in projects, relational and classical contract clauses are not complementary with regards to realizing high OP.

Neuropsychological profile of entrepreneurs

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Esteban R. Brenes ◽  
Gabriel Rodríguez ◽  
Joseph Acuña ◽  
Yadira Villalobos ◽  
Caleb A. Pichardo
Keyword(s):  
Decision Making ◽  
Comparative Analysis ◽  
Cognitive Flexibility ◽  
Risk Taking ◽  
Design Methodology ◽  
Qualitative Comparative Analysis ◽  
Content Type ◽  
Government Institutions ◽  
Neuropsychological Profile ◽  
Neuropsychological Characteristics

PurposeBy analyzing variables from the fields of business and neuropsychology, this document examines alternative combinations of behavioral economics and neuropsychological characteristics that would explain a successful entrepreneurial profile.Design/methodology/approachThe research is based on information gathered through a survey of 1,080 entrepreneurs. The findings offer interesting perspectives for academics, professionals and government institutions, which illustrate various neuropsychological characteristics that a person must have to be a successful entrepreneur. The method consists of a novel perspective that integrates qualitative comparative analysis (QCAs), a method based on Boolean algebra that offers a study from a configurational perspective.FindingsFrom the mixture of configurations, the paper explores following possible traits of an entrepreneurial mindset: cognitive flexibility, risk-taking, decision-making and teamwork.Originality/valueThis paper contributes to the literature on emerging attempts and approaches to understand the entrepreneurial mindset and the possible skillset that underpins successful entrepreneurship.

Measuring the performance of expert-based evaluation method (EBEM) used for listing and grading heritage buildings: the case of Panaji city

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rohit Ramakrishna Nadkarni ◽  
Bimal Puthuvayi
Keyword(s):  
Comparative Analysis ◽  
Design Methodology ◽  
Evaluation Method ◽  
Confusion Matrix ◽  
Content Type ◽  
Urban Heritage ◽  
The World ◽  
Heritage Buildings

PurposeThe identification (listing) and classification (grading) of urban heritage buildings for conservation is a challenging task for urban planners and conservation architects. Most of the world's cities depend on the expert-based evaluation method (EBEM) for listing and grading heritage buildings. The Panaji city in India provided a unique opportunity to assess the performance of the EBEM as two independent agencies carried out the heritage listing and grading process. Considering the case of Panaji, this research aims to measure the performance of EBEM used for listing and grading heritage buildings and identify the issues associated with the existing methodology.Design/methodology/approachThis research presents a comparative analysis of the building listed and graded by the two agencies. The buildings that both agencies graded were identified and analysed using a confusion matrix. The grading classification was tested for accuracy, precision, sensitivity and F-score.FindingsThe result shows a low accuracy and F-score, which reflects the level of buildings misclassified. The misclassification is the product of the lack of standardisation of methodology and the subjectivity level involved in the EBEM.Originality/valueHeritage listing and grading is a time-consuming process, and no city has the time and resource to conduct studies to check the accuracy. The cities in India and across the world, which follow a similar EBEM process, should consider this study's finding and revisit their methodology and develop a more reliable methodology for listing and grading heritage buildings.

An analysis of papers published in the Journal of European Real Estate Research, 2008-2019

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Martin Hoesli
Keyword(s):  
Comparative Analysis ◽  
Real Estate ◽  
Eastern Europe ◽  
Portfolio Management ◽  
Design Methodology ◽  
Central And Eastern Europe ◽  
Investment Portfolio ◽  
Content Type ◽  
Real Estate Research ◽  
Key Dimensions

Purpose The purpose of this paper is to analyze papers that have been published in the Journal of European Real Estate Research since its inception in 2008. Design/methodology/approach The author analyzes papers published from 2008 to 2019 in the Journal of European Real Estate Research by authors’ country of affiliation, by country of study and by theme. Findings The Journal of European Real Estate Research publishes papers from scholars from an increasing number of countries, in particular in Central and Eastern Europe. Papers that provide a comparative analysis of countries constitute the largest category of contributions. The three most popular themes remain housing, valuation and investment/portfolio management. However, the dynamics of the three categories differ notably. Originality/value This paper provides for a clearer understanding of key dimensions of real estate research in Europe.

Barriers to BIM implementation strategies in China

2019 ◽  
Vol 26 (3) ◽  
pp. 554-574 ◽  
Author(s):  
Yijun Zhou ◽  
Yu Yang ◽  
Jyh-Bin Yang
Keyword(s):  
Comparative Analysis ◽  
Design Methodology ◽  
Resistance To Change ◽  
Implementation Strategies ◽  
Lessons Learned ◽  
Legal Issues ◽  
Public And Private ◽  
Content Type ◽  
The Public ◽  
Organizational Issues

Purpose Effective BIM application hinges on the development of appropriate strategies for its implementation. Though some strategies have been deployed to facilitate BIM implementation in China, their outcomes are not clear. The purpose of this paper is to provide recommendations regarding appropriate strategies for promoting the development and implementation of BIM in China based on lessons learned from advanced implementation experiences in other countries. Design/methodology/approach First, existing strategies are investigated and barriers to BIM implementation mentioned in previous studies are summarized. Then, the identified barriers are mapped to the strategy contents. Finally, a comparative analysis on different areas is conducted to propose suggestions for identified items of BIM implementation strategies that need to be improved. Findings Six unaddressed barriers to BIM implementation strategies in China were identified from the mapping results: insufficient government lead/direction, organizational issues, legal issues, high cost of application, resistance to change of thinking mode and insufficient external motivation. Originality/value The findings of this study can be used to facilitate the development of appropriate strategies within the public and private sectors for promoting BIM implementation in China and elsewhere.

Design and locomotivity analysis of a novel deformable two-wheel-like mobile mechanism

2020 ◽  
Vol 47 (3) ◽  
pp. 369-380 ◽  
Author(s):  
Qianqian Zhang ◽  
Yezhuo Li ◽  
Yan-An Yao ◽  
Ruiming Li
Keyword(s):  
Design Methodology ◽  
Mode Switching ◽  
Main Body ◽  
Dynamics Analysis ◽  
Kinematics Analysis ◽  
Content Type ◽  
Physical Prototype ◽  
Dynamic Obstacle ◽  
Rolling Mode ◽  
Multi Mode

Purpose The purpose of this paper is to propose a deformable two-wheel-like mobile mechanism based on overconstrained mechanism, with the abilities of fast rolling and obstacle surmounting. The drive torque of the multi-mode motions is generated by self-deformation. Moreover, the analyses of feasibility and locomotivity of two mobile modes are presented. Design/methodology/approach The main body of the two-wheel-like mobile mechanism is a kind of centrally driven 4 R linkages. The mobile mechanism can achieve the capabilities of fast rolling and obstacle surmounting through integrating two mobile modes (spherical-like rolling mode and polyhedral-like obstacle-surmounting mode) and can switch to the corresponding mode to move or surmount obstacles. The mobility and kinematics of the mobile modes are analyzed. Findings Based on the results of kinematics analysis and dynamics analysis of the wheel-like mechanism, the spherical-like rolling mode has the capability of fast rolling, and the polyhedral-like obstacle-surmounting mode has the capability of surmounting different obstacle heights by two submodes (quasi-static obstacle-surmounting submode and dynamic obstacle-surmounting submode). The proposed concept is verified by experiments on a physical prototype. Originality/value The work presented in this paper is a novel exploration to apply bar linkages in the field of scout. The two-wheel-like mobile mechanism improves the torque imbalance of bar linkages by centrally driven method, removes the rear support structures of the traditional two-wheeled mechanisms by self-deformation and increases the height of obstacle surmounting by mode switching angle.

An enhanced algorithm for calculating the degree of greyness of interval grey numbers and its application

Kybernetes ◽  
2019 ◽  
Vol 49 (6) ◽  
pp. 1721-1740
Author(s):  
Shuaishuai Geng ◽  
Yu Feng ◽  
Yaoguo Dang ◽  
Junjie Wang ◽  
Rizwan Rasheed
Keyword(s):  
Decision Making ◽  
Design Methodology ◽  
Decision Making Process ◽  
Content Type ◽  
Operational Mechanism ◽  
Operation Process ◽  
Algebraic Operations ◽  
Grey Number ◽  
Operation Results ◽  
Selection Of

Purpose This paper aims to propose an enhanced algorithm and used to decision-making that specifically focuses on the choice of a domain in the calculation of degree of greyness according to the principle of grey numbers operation. The domain means the emerging background of interval grey numbers, it is vital for the operational mechanism of such interval grey numbers. However, the criteria of selection of domain always remain same that is not only for the calculated grey numbers but also for the resultant grey numbers, which can be assumed as unrealistic up to a certain extent. Design/methodology/approach The existence of interval grey number operation based on kernel and the degree of greyness containing two calculation aspects, which are kernel and the degree of greyness. For the degree of greyness, it includes concepts of domain and calculation of the domain. The concepts of a domain are defined. The enhanced algorithm is also comprised of four deductive theorems and eight rules that are linked to the properties of the enhanced algorithm of the interval grey numbers based on the kernel and the degree of greyness. Findings Aiming to improve the algorithm of the degree of greyness for interval grey numbers, based on the variation of domain in the operation process, the degree of greyness of the operation result is defined in this paper, and the specific expressions for algebraic operations are given, which is relevant to the kernel, the degree of greyness and the domain. Then, these expressions are used to the algorithm of interval grey numbers based on the kernel and the degree of greyness, improving the accuracy of the operation results. Originality/value The enhanced algorithm in this paper can effectively reduce the loss of information in the operation process, so as to avoid the situation where the decision values are the same and scientific decisions cannot be made during the grey evaluation and decision-making process.

scholarly journals Alignment of business in robotic process automation

2019 ◽  
Vol 3 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Ning Zhang ◽  
Bo Liu
Keyword(s):  
Comparative Analysis ◽  
Design Methodology ◽  
Negative Impact ◽  
Qualitative Comparative Analysis ◽  
Process Automation ◽  
Content Type ◽  
Robotic Process Automation ◽  
Business Alignment ◽  
Practical Implications

Purpose This paper aims to find out how business aligns with robotic process automation (RPA) and whether the alignment has the same factors as for IT–business alignment. Design/Methodology/Approach Condition configurations for positive and negative impact for business alignment with RPA. Findings The positive and negative configurations that possibly impact business alignment with RPA. Research limitations/implications There are some human instincts during conditions dichotomization and limited number of cases. Practical implications The findings can be used to guide practice application in real industry. Originality/value This paper adopted crisp-set qualitative comparative analysis to find condition configurations for alignment of business and RPA for more generalization.

Sharīʿah appraisal on the issue of imposing burden of proof to the entrepreneur in trust based contracts

2016 ◽  
Vol 7 (2) ◽  
pp. 148-169
Author(s):  
Asmadi Mohamed Naim ◽  
Mohd Noor Habibi Hj Long ◽  
Mahyuddin Abu Bakar ◽  
Muhammad Nasri Md Hussain
Keyword(s):  
Qualitative Research ◽  
Comparative Analysis ◽  
Design Methodology ◽  
World Wide ◽  
Descriptive Analysis ◽  
Burden Of Proof ◽  
Islamic Banks ◽  
Content Type ◽  
Business Requirements ◽  
Practical Implications

Purpose The purpose of this paper is to examine the Shariah view on the legitimacy of requiring the entrepreneur to prove that he/she has complied with all business requirements in case the actual profit was below the expected profit in trust-based contracts such as mudarabah and musharakah. Design/methodology/approach This paper is part of the research which applies qualitative research approaches, including among others, content analysis, interviews, observations and descriptive analysis using fiqh muqaran (comparative analysis of jurists’ arguments) in few phases. Findings The study found that shifting the burden of proof to the fiduciary is the weightier view and necessary to ensure that both sides are protected. The considerations of protecting people’s wealth (ḥifẓ amwāl al-nās) and mitigating widespread greed (ṭamaʿ) are among the reasons for allowing elements such as ʿurf, tuhmah and dalālat al-ḥāl to be treated as bayyinah in trust-based contracts when the fiduciary is obliged to defend himself from litigation. Research limitations/implications The study is meant to strengthen the practices of Islamic banks world wide. Practical implications Few protections can be applied for capital provider. Social implications This study is meant to give solution in dealing with moral hazard of both parties, and to provide solution to the regulator for policy drafting and to increase confidence to the industry. Originality/value The finding is important in assisting the regulators in drafting the policy to protect both parties without neglecting the essence of trust-based contracts.

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