bluuebunny/crossref_metadata_2025_split huggingface dataset:
Engine-bracket drilling fixture layout optimization for minimizing the workpiece deformation
Authors: T. Ramachandran , S. Surendarnath , R. Dharmalingam 
Published: September 2020

Purpose
Fixture layout design is concerned with immobilization of the workpiece (engine mount bracket) during machining such that the workpiece elastic deformation is reduced. The fixture holds the workpiece through the positioning of fixturing elements that causes the workpiece elastic deformation, in turn, leads to the form and dimensional errors and increased machining cost. The fixture layout has the major impact on the machining accuracy and is the function of the fixturing position. The position of the fixturing elements, key aspects, needed to be optimized to reduce the workpiece elastic deformation. The purpose of this study is to evaluate the optimized fixture layout for the machining of the engine mount bracket.

Design Methodology Approach
In this research work, using the finite element method (FEM), a model is developed in the MATLAB for the fixture-workpiece system so that the workpiece elastic deformation is determined. The artificial neural network (ANN) is used to develop an empirical model. The results of deformation obtained for different fixture layouts from FEM are used to train the ANN and finally the empirical model is developed. The model capable of predicting the deformation is embedded to the evolutionary optimization techniques, capable of finding local and global optima, to optimize the fixture layouts and to find the robust one.

Findings
For efficient optimization of the fixture layout parameters to obtain the least possible deformation, ant colony algorithm (ACA) and artificial bee colony algorithm (ABCA) are used and the results of deformation obtained from both the optimization techniques are compared for the best results.

Research Limitations Implications
A MATLAB-based FEM technique is able to provide solutions when the repeated modeling and simulations required i.e. modeling of fixture layouts (500 layouts) for every variation in the parameters requires individual modeling and simulation for the output requirement in any FEM-based software’s (ANSYS, ABACUS). This difficulty is reduced in this research. So that the MATLAB-based FEM modeling, simulation and optimization is carried out to determine the solutions for the optimized fixture layout to reach least deformation.

Practical Implications
Many a time the practicability of the machining/mechanical operations are difficult to perform costly and time-consuming when more number of experimentations are required. To sort out the difficulties the computer-based automated solution techniques are highly required. Such kind of research over this study is presented for the readers.

Originality Value
A MATLAB-based FEM modeling and simulation technique is used to obtain the fixture layout optimization. ANN-based empirical model is developed for the fixture layout deformation that creates a hypothesis for the fixture layout system. ACA and ABCA are used for optimizing the fixture layout parameters and are compared for the best algorithm suited for the fixture layout system.
Perceived understanding of supply chain integration, communication and teamwork competency in the global manufacturing companies
Authors: Fernando Yudi , Wulansari Puspita 
Published: September 2020

PurposeThis study empirically examines a model that describes the direct path from perceived understanding of supply chain integration (PUSCI) to perceived understanding of supply chain responsiveness (PUSCR) to leverage supply chain manager's communication and teamwork competencies. This study also examines whether knowledge and task skill and proficiency mediate the relationship between PUSCI and PUSCR to improve the communication and teamwork competency of a supply chain manager.Design/methodology/approachThe data were collected using a survey questionnaire that was mailed to the 413 supply chain managers of global manufacturing companies in Indonesia.FindingsThe result from model testing shows that PUSCR significantly and positively affected the communication and teamwork competency of supply chain manager and knowledge, task skill and proficiency as mediating variables improved communication and teamwork competency. The results found that PUSCI was related to supply chain manager's competency.Practical implicationsSupply chain managers are advised to focus on PUSCI and consistently improve effective communication and teamwork competency.Originality/valueThis study will extend the literature by utilizing the competency-based theory to investigate the perceived understanding and communication capabilities of supply chain managers.
Missing the sociopolitical: examining discourses of writing in a US high-performing, urban middle school
Authors: Behizadeh Nadia 
Published: September 2020

PurposeThis paper aims to examine two teachers’ beliefs and practices on teaching writing at an urban, high-performing middle school to determine: What discourses of writing are being taught in an urban, high-performing US public middle school? What factors prevent or enable particular discourses?Design/methodology/approachDrawing on case study methods, this study uses a single-case design with two seventh-grade teachers at a high-performing urban school as embedded units of analysis. Data collection took place over one semester. Data sources included observations and interviews with the two teachers, an interview with an administrator and multiple instructional artifacts, including unit and lesson plans. Observational data were analyzed using a priori code for writing discourses (Ivanic, 2004) and interview data were analyzed for factors affecting instruction using open, axial and selective coding.FindingsBoth teachers enacted extended multi-discourse writing instruction integrating skills, creativity, process, genre and social practices discourses supported by their beliefs and experience; colleagues; students’ relatively high test scores; and relative curricular freedom. However, there was minimal evidence of a sociopolitical discourse aligned with critical literacy practices. Limits to the sociopolitical discourse included a lack of a social justice orientation, an influx of low-performing students, a focus on raising test scores, data-focused professional development and district pacing guides. Racism is also considered as an underlying structural factor undermining the sociopolitical discourse.Research limitations/implicationsAlthough generalizability is limited because of the small sample size and the unique context of this study, two major implications are the need to layer discourses in writing instruction while centering critical pedagogy and develop teacher beliefs and knowledge. To support these two implications, this study suggests developing university-school partnerships and professional development opportunities that create a community of practice around comprehensive writing instruction. Future research will involve continuing to work with the participants in this study and documenting the effects of providing theory and tools for integrating the sociopolitical discourse into middle school curricula and instruction.Originality/valueThis study contributes to the field of literacy education’s understanding of internal and external factors limiting the sociopolitical discourse in a high-performing, urban middle school in the USA, an understudied context.
The quarantine archives: educators in “social isolation”
Authors: López López Ligia (Licho) , McCaw Christopher T. , Di Biase Rhonda , McKernan Amy , Rudolph Sophie , Galatis Aristidis , Dulfer Nicky , Gerrard Jessica , McKinley Elizabeth , McLeod Julie , Rizvi Fazal 
Published: September 2020

PurposeThe archives gathered in this collection engage in the current COVID-19 moment. They do so in order to attempt to understand it, to think and feel with others and to create a collectivity that, beyond the slogan “we are in this together”, seriously contemplates the implications of what it means to be given an opportunity to alter the course of history, to begin to learn to live and educate otherwise.Design/methodology/approachThis paper is collectively written by twelve academics in March 2020, a few weeks into the first closing down of common spaces in 2020, Victoria, Australia. Writing through and against “social isolation”, the twelve quarantine archives in this paper are all at once questions, methods, data, analysis, implications and limitations of these pandemic times and their afterlives.FindingsThese quarantine archives reveal a profound sense of dislocation, relatability and concern. Several of the findings in this piece succeed at failing to explain in generalising terms these un-new upending times and, in the process, raise more questions and propose un-named methodologies.Originality/valueIf there is anything this paper could claim as original, it would be its present ability to respond to the current times as a historical moment of intensity. At times when “isolation”, “self” and “contained” are the common terms of reference, the “collective”, “connected” and “socially engaged” nature of this paper defies those very terms. Finally, the socially transformative desire archived in each of the pieces is a form of future history-making that resists the straight order with which history is often written and made.
Entropy generation of mixed convection of SWCNT–water nanofluid filled an annulus with a rotating cylinder and porous lining under LTNE
Authors: Çiçek Oktay , Baytaş A. Filiz , Baytaş A. Cihat 
Published: September 2020

Purpose
The purpose of this study is to numerically analyze the mixed convection and entropy generation in an annulus with a rotating heated inner cylinder for single-wall carbon nanotube (SWCNT)–water nanofluid flow using local thermal nonequilibrium (LTNE) model. An examination of the system behavior is presented considering the heat-generating solid phase inside the porous layer partly filled at the inner surface of the outer cylinder.

Design/methodology/approach
The discretized governing equations for nanofluid and porous layer by means of the finite volume method are solved by using the SIMPLE algorithm.

Findings
It is found that the buoyancy force and rotational effect have an important impact on the change of the strength of streamlines and isotherms for nanofluid flow. The minimum average Nusselt number on the inner cylinder is obtained at Ra$_E$ = 10$^4$, and the minimum total entropy generation is found at Re = 400 for given parameters. The entropy generation minimization is determined in case of different nanoparticle volume fractions. It is observed that at the same external Rayleigh numbers, the LTNE condition obtained with internal heat generation is very different from that without heat generation.

Originality/value
To the best of the authors’ knowledge, there is no previous paper presenting mixed convection and entropy generation of SWCNT–water nanofluid in a porous annulus under LTNE condition. The addition of nanoparticles to based fluid leads to a decrease in the value of minimum total entropy generation. Thus, using nanofluid has a significant role in the thermal design and optimization of heat transfer applications.
A new local causal learning algorithm applied in learning analytics
Authors: de Carvalho Walisson Ferreira , Zárate Luis Enrique 
Published: September 2020

PurposeThe paper aims to present a new two stage local causal learning algorithm – HEISA. In the first stage, the algorithm discoveries the subset of features that better explains a target variable. During the second stage, computes the causal effect, using partial correlation, of each feature of the selected subset. Using this new algorithm, the study aims to identify the actions that lead a student succeed or failure in a course.Design/methodology/approachThe paper presents a brief review of main concepts used in this study: Causal Learning and Causal effects. The paper also discusses the results of applying the algorithm in education data set. Data used in this study was extracted from the log of actions of a Learning Management System, Moodle. These actions represent the behavior of 229 engineering students that take Algorithm and Data Structure course offered in a blended model.FindingsThe algorithm proposed in the paper identifies that features with weak relevance to a target may become relevant when computing the direct effect.Research limitations/implicationsThe algorithm needs to be improved to automatically discard attributes that are under a specific threshold of direct effect. Researchers are also encouraged to test the proposed propositions further.Practical implicationsThe algorithm presented in this paper can be used to identify the mostly relevant features given a classification task.Originality/valueThis paper computes the direct effect of a selected subset of features in a target variable to evaluate if a variable in this subset is really a cause of the target or if it is a spurious correlation.
Determinants of innovation performance of organizations in a regional innovation system from a developing country
Authors: Ortega Ana Maria , Serna Maribel 
Published: September 2020

PurposeVariables affecting the innovation performance (IP) in regional innovation systems (RIS) have been widely studied in developed countries, while little information exists for the case of developing countries. Based on the innovation economics theory, this study aims to examine determinants of IP of organizations within the RIS of Medellin/Antioquia, Colombia (South America).Design/methodology/approachBy using nonparametric statistical analyses, this study tests six research hypotheses through a randomly applied questionnaire, responded by 1,005 organizations belonging to the RIS of Medellin/Antioquia.FindingsResults indicate that the economic sector, firm size, level of interaction with different parties and level of interaction with academic partners have a significant impact on IP in the RIS. Nevertheless, the number of employees in research and development and the adoption of new technologies have no significant effect.Practical implicationsBased on the results, this study identifies innovation determinants that managers and policymakers should consider when formulating strategies to improve organizations’ IP. The result of this paper may provide valuable insights for the study of RIS’ determinants and support further research in similar contexts.Originality/valueThis paper contributes to the limited body of knowledge regarding the variables that impact the IP of organizations in a RIS from a developing country. This paper also examines possible explanations for those hypotheses that were not supported, showing differences between developing and developed countries.
Explicating micro foundations of corporate social responsibility: a moderated-mediation study of customer, investor and employee roles
Authors: Bhattacharyya Som Sekhar , Jha Sumi 
Published: September 2020

PurposeThe purpose of this study is to provide an explication of micro foundations of Corporate Social responsibility (CSR). CSR, as a study domain, has been accommodating individual centric aspects. Extant literature delved into firm aspects like regulation, the role of individuals such as leaders and managers in shaping the agenda and practice on CSR.Design/methodology/approachBased upon the responses of 396 managers, the authors explored how young managers assessed firm CSR actions and develop their role as potential customers, investors and potential employees toward a firm. For this study, a mediated moderator analysis has been applied to test the model.FindingsThe authors found that between an individuals’ customer-centric role toward firm products, positively relate to being a potential employee. However, there was also the presence of the mediation role of the individuals’ inclination for becoming an investor in firm shares. Further, there was a moderation role of an individual’s firm CSR product assessment. The developed model had four factors, namely, customer CSR firm assessment (CCFA), customer CSR product assessment (CCPA), investor CSR evaluation (ICE) and employee CSR aspiration (ECA).Research limitations/implicationsIn this research, based upon systems justification theory and expectancy theory an individual-centric micro foundation based theoretical model on CSR were developed consisting of CCFA as an antecedent variable, ICE as mediating variable, CCPA as moderating variable and ECA as the dependent variable.Originality/valueThis study was one of the contributions toward a micro foundations based CSR approach model with role-plays as a customer, investor and potential employee.
Constructivist approach in teaching sustainability and business ethics: a case study
Authors: Dziubaniuk Olga , Nyholm Monica 
Published: September 2020

Purpose
This paper aims to explore methods of teaching sustainability and business ethics, relevant to the modern demand for student’s skills and knowledge. The study explores the challenges of teaching a business school undergraduate-level course and argues that a constructivist pedagogy is a suitable epistemological approach for designing a course unit concerning sustainability and ethics.

Design/methodology/approach
The paper presents case study findings drawn upon course feedback and course reflections aimed at making sense of what the most effective pedagogic approaches were that influenced students’ learning.

Findings
Results indicate that students appreciate active forms of learning via practical assignments and discussions. As knowledge of sustainability and business ethics is important for the student’s future career path, students need to develop skills of applying conceptual knowledge to practice via constructive pedagogical methods.

Practical implications
This empirical study contributes to the literature of constructivist pedagogics, which is explored in the context of sustainable development and business ethics teaching. Practically, it contributes to the analysis of teaching methods and frameworks applied in the course emphasizing the necessity of engaging in interactive and personalized learning and teaching processes.

Originality/value
Issues of teaching ethics and sustainable development are known concerns, but they have to be addressed systematically because of the changing business environment. This study explores the constructivist pedagogy based on empirical evidence and highlights its value in the educational process.
On the characteristics of gas foil conical bearings considering misalignment
Authors: Hu Hongyang , Feng Ming , Ren Tianming 
Published: September 2020

Purpose
The purpose of this paper is to study the characteristics of gas foil conical bearings (GFCBs) considering the misalignment, the static and dynamic performances with different misalignment cases were studied.

Design/methodology/approach
A test rig on the air compressor supported by GFCBs has been developed to measure the practicability. A nonlinear bump stiffness model and one-dimensional beam top foil stiffness model were used as a basis for the calculation of static and dynamic performance. The finite element method and finite difference method are adopted to solve the Reynolds equation and the film thickness equation coupled, in which different misalignment cases were considered by changing the film thickness.

Findings
The supporting performance of GFCB is excellent, and the film clearance plays a critical role. The misalignment effects depend on the assembled angle and the misalignment angle. The load capacity, friction torque, temperature of GFCB decrease when the misalignment assembled angle is between 120° and 240°, while the dynamic bearing stability is improved. The static and dynamic performances show the opposite law for the other assembled angles, and the misalignment effect is more dramatic when there is a larger misalignment angle. Moreover, the bearing and running parameters largely affect the bearing performance.

Originality/value
The present study focuses on the static and dynamic characteristics of GFCB and investigates the effects of misalignment on the bearing performance.

Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-04-2020-0117
Many hands make light work: towards a framework of digital co-production to co-creation on social platforms
Authors: Alam Sultana Lubna 
Published: September 2020

PurposeRecent technological advances have enabled consumers and citizens to contribute to organizational processes through co-production and co-creation in ways that challenge traditional co-production. However, the practices and capabilities for value co-creation are less understood, particularly in an increasingly networked social government ecosystem. The purpose of this research is to examine the enablement of new digital co-production practices in social media platforms (SMPs) and theorize SMP-enabled digital co-production vis-à-vis traditional co-production for public sector.Design/methodology/approachPrimarily using principles of interpretivist approaches, a qualitative content analysis of communication practices (i.e. genres) observed within Australian government Facebook pages was carried out to examine the salient digital forms of co-production practices.FindingsSMPs enable new practices in digital co-production for public sector (information dissemination, Q&A, feedback and co-creation), ranging from lower to higher intensity in terms of resource integration, scale of contributions, engagement and extent of relationship vis-à-vis traditional co-production.Research limitations/implicationsThis research is bounded by its geographical emphasis on Australian Federal government. Hence, the results may not be readily transferable to other contexts.Practical implicationsOur framework offers an array of choices for digital co-production strategies to suit agency's focus and goals for engagement in the Facebook Pages. As agencies progress to reach higher intensity co-production, public engagement and impact increases.Originality/valueThe paper contributes to co-production in social government ecosystem by increasing the theoretical and practical understanding of new form of SMP-enabled digital co-production defined as “small-scale, repetitive, user-driven co-production that is flexible, durable, ad-hoc, and sporadic, where many hands make light work”. The proposed “co-production to co-creation” framework provides valuable guideline for enhancing public service provision via SMPs.
Conviviality as social practice in business relationships: concepts and insights from a case of expatriates
Authors: Guercini Simone , Ranfagni Silvia 
Published: September 2020

Purpose
This paper aims to investigate the practice of conviviality as the right setting to explore how social capital interacts with business relationships and in particular how resources impacting business relationships take shape in social relations.

Design/methodology/approach
This paper has adopted the single case study method combining in-depth interviews, participant observations and focus groups. The investigated case is an Italian business community located in Hangzhou (China), recognized as one of the most active foreign communities in organizing convivial activities.

Findings
The study shows that conviviality contributes to generating resources thereby creating interactions in business relationships via social relations through self-narrative, community feeling and empathy. These resources bear distinguishing features. Based on relationships of trust, they are fitting and mutual knowledge-based resources and they are resources performing a sense of inner time.

Originality/value
The paper contributes to the interpretation of the interplay between business relationships and social capital through conviviality and is in line with a direction of research, which is increasingly involving industrial marketing and purchasing (IMP) researchers, which is the analysis of social capital in business networks.