New Materials, Intelligent Systems, and Innovative Companies

@article{du_1411,

title = {The up- and downside of collaboration in core and non-core technologies - Selective, contingent, and orchestrated openness in R&D collaborations},

author = {Jingshu Du},

url = {https://www.sciencedirect.com/science/article/abs/pii/S0019850121000468?via%3Dihub},

year  = {2021},

date = {2021-04-01},

journal = {Industrial Marketing Management},

volume = {94},

pages = {187-201},

abstract = {This paper contributes to the current debate about the ?knowledge sharing-protecting? tension in R&D collaborations by introducing a new angle for analyzing this paradox. Considering the role of internal knowledge sources of the firm, the paper introduces and empirically analyses the interplay between three knowledge governance mechanisms (selective, contingent, and orchestrated openness) and the different technological fields of the firm (core, related non-core, and distant non-core technologies). Based on a unique first-hand large-scale project-level dataset from a Global 100 firm across a 10-year span, this research finds that R&D collaborations selectively conducted in firm's related non-core technological fields promise the best innovation performance. Further, by orchestrating its projects across core and non-core technological fields in the same knowledge portfolio, the firm can leverage a network of inter-connected projects when collaborating with external partners. As such, the firm can strategically ?distribute? collaboration risks across multiple projects, while optimize its access to external knowledge that it intends to get. Finally, contrary to the common assumption, this study does not find any discriminating factors against market-based partners in their contribution to innovation in both core and non-core technologies.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{rezaee_vessal_1367,

title = {Overcoming stressful life events at do-it-yourself (DIY) laboratories. A new trailblazing career for disadvantaged entrepreneurs},

author = {Saeedeh Rezaee Vessal and Judith Partouche and Veronica Scuotto and Adnane Maalaoui},

url = {https://www.sciencedirect.com/science/article/pii/S0040162520313329},

year  = {2021},

date = {2021-03-01},

journal = {Technological Forecasting And Social Change},

volume = {164},

pages = {120506},

abstract = {Do it yourself (DIY) laboratories are the new experimental open source spaces where nascent entrepreneurs (or DIYers) get together to develop entrepreneurial ideas. Although these labs were originally established by scientists and biologists, they now include civil society, creating a mix and match between experts and non-experts. This group also includes another category of nascent entrepreneurs known as disadvantaged DIYers (DDIYers) who are making the most of these spaces. DDIYers encompass a different range of people such as immigrants, women, and the disabled. The latter calls for a new wave of research focused on DDIYers who are affected by chronic disease; these people motivated the present study that examined a sample of 27 DDIYers who created their own business after being diagnosed with cancer. The following will investigate their motivations. It will be seen that DDIYers are driven by external motivations oriented towards the desire to fulfill unmet needs; existential motivations oriented towards finding meaning in and control over one's life; as well as the aim of having an ideal profession and sharing a common project. With this in mind, policymakers and research institutions are encouraged to facilitate the establishment of DIY labs and the sharing of resources and knowledge.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ben_abdallah_1269,

title = {Molecular weight influence on shape memory effect of shape memory polymer blend ( poly(caprolactone)/styrene-butadiene-styrene )},

author = {Abir Ben Abdallah and Fehmi Gamaoun and Achraf Kallel and Abbas Tcharkhtchi},

url = {https://onlinelibrary.wiley.com/doi/10.1002/app.49761},

year  = {2021},

date = {2021-02-01},

journal = {Journal Of Applied Polymer Science},

volume = {138},

number = {5},

pages = {49761},

abstract = {The shape memory effect (SME) does not only concern the macroscopic structure. It concerns also the polymer structure at morphological, macromolecular, and molecular scales. This effect may depend on different physicochemical properties like morphology heterogeneity, chain rigidity, steric hindrance, chain polarity, free volume, cross-linking or entanglement density, molecular shape and weight, and so on. Hence, finding the relationship between the SME and these properties is very important. This can help to obtain the knowledge about the phenomenon origin and mechanism. One of the basic polymer properties, which can have direct SME, may be the molecular weight (Mw). The question here is: If the Mw of a shape memory polymer (SMP) changes, for different reasons like degradation, what will be the effect of this change on its SME. In order to answer to this question, the investigation is focused on an SMP blend of 40% poly(?-caprolactone) (PCL) and 60% styrene-butadiene-styrene (SBS). Then, enzymatic hydrolysis is performed on this blend to change its Mw. It is shown that this change is only related to the variation in the Mw of PCL. After that, different samples with a distinct average Mw are prepared and characterized by various experimental methods. Shape memory tests are performed on these blends, and the recovery rate (Rr) for each of them is determined. It is found that when Mw of PCL decreases, its degree of crystallinity, its glass transition, and its melting temperatures, corresponding to the PCL phase, increase. However, the elongation at break of the blend declines with the reduction in Mw. The tests show that the alteration in the blend's Mw influences its SME. Indeed, Rr of the (PCL/SBS) mixture drops with the decrease in Mw of PCL.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{zheng_2584,

title = {Variations in the determinants of regional development disparities in rural China},

author = {Lucy (Ping) ZHENG and David Shepherd and Michael Batuo},

url = {https://www.sciencedirect.com/science/article/pii/S0743016719308393},

year  = {2021},

date = {2021-02-01},

journal = {Journal Of Rural Studies},

volume = {82},

pages = {29-36},

abstract = {The presence of persistent regional development disparities in rural China has become one of the most important concerns about the country's further sustainable development. As the key engine driving the rural economy, rural industrial development plays a dominant role in understanding rural regional development disparities. This study utilizes a provincial panel dataset to examine the determinants of industrial development in rural China over the period 1992-2014. The analysis compares rural output growth and export growth as indicators of rural industrial development, and identifies significant regional variations in the determinants of these indicators across the three main regions of the country. The results suggest that domestic capital investment is the most important cause of regional rural output growth disparities, while FDI is the main reason for rising regional disparities in export growth. A strong self-reinforcing effect in output growth is identified for the Eastern region, which has generated faster economic growth compared to the other regions. There exists a regional divergence in export growth, accelerating the regional export disparity between the three regions. Based on the findings of this study, we argue that, to reduce regional development disparities, the formulation of policies to promote national economic goals should take explicit account of the regional context in which those policies operate.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{turker_2707,

title = {How Do Social Entrepreneurs Develop Technological Innovation?},

author = {Duygu Türker and Y.Serkan Ozmen},

url = {https://doi.org/10.1108/SEJ-05-2020-0034},

year  = {2021},

date = {2021-02-01},

journal = {Social Enterprise Journal},

volume = {17},

number = {1},

pages = {63-93},

abstract = {Abstract

Purpose



The present study attempts to analyze how social entrepreneurs (SEs) develop technological innovation in the face of diverse institutional logics, which are embedded in the National Systems of Innovation (NSI).

Design/methodology/approach



Based on the content analysis of Ashoka Fellows, the study compares SEs in developed and developing countries, which represent strong versus weak NSIs.

Findings



SEs selectively couple the elements of diverse institutional logics to ensure the resource inflow and legitimacy of their operations. However, SEs particularly at weak NSIs are also decoupling their profit and non-for-profit branches to address conflict among diverse logics. Moreover, the study finds that 12 out of 20 entrepreneurs who identify themselves as technologically innovative did not develop any new technological innovation.

Practical implications



The study shows that being technologically innovative depends on the acquisition of resources and the management of legitimacy challenges, SEs can diversify their innovations by creating more incremental, architectural and modular innovations to address competing demands among logics.

Social implications



The study reveals that SEs in weak NSIs interact with multiple institutional logics more frequently than their counterparts in strong NSIs. Although this context leads them to diversify their technological innovation, there is a need for improving the NSIs of SEs in developing countries to facilitate the continuity of resource inflow and ensure the legitimacy of their operations.

Originality/value



Integrating two complementary theoretical lenses, the study contributes to the literature by exploring the impact of the interaction between logics nested within a supra system and SEs' ability to develop technological innovation.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{randawa_3488,

title = {Evolving a Value Chain to an Open Innovation Ecosystem: Cognitive Engagement of Stakeholders in Customizing Medical Implants},

author = {Krithika Randawa and Joel West and Katrina Skelern and Emmanuel Josserand},

url = {https://journals.sagepub.com/doi/10.1177/0008125620974435},

year  = {2021},

date = {2021-02-01},

journal = {California Management Review},

volume = {63},

number = {2},

pages = {101-134},

abstract = {While open innovation ecosystems allow a firm to harness external sources of value creation, these external ties can also constrain its ability to adapt its innovation strategy to pursue new opportunities. This article looks at how an incumbent firm approached such constraints, and used cognitive artifacts to transform its value chain into a collaborative ecosystem. It examines the case of a 3D printing-enabled shift to mass customization of orthopedic medical implants. The results demonstrate how firms can use artifacts to build a shared understanding across heterogeneous stakeholders as they explore and develop new open innovation models, and how this process can be managed flexibly to avoid adopting a locally (rather than globally) optimal strategy.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{del_giudice_1361,

title = {A self?tuning model for smart manufacturing SMEs: Effects on digital innovation},

author = {Manlio Del Giudice and Veronica Scuotto and Armando Papa and Shlomo Tarba and Stefano Bresciani and Merrill Warkentin},

url = {https://onlinelibrary.wiley.com/doi/10.1111/jpim.12560},

year  = {2021},

date = {2021-01-01},

journal = {Journal Of Product Innovation Management},

volume = {38},

number = {1},

pages = {68-89},

abstract = {With the changing way people live, communicate, and work, enterprises are striving to shift their existing business model into a ?self?tuning? one. Enterprises are becoming more agile, adaptive, and ambidextrous in order to boost innovation in the current digital transformation era. Nowadays, ?digital innovation' is closely associated with Industry 4.0 enablers and smart enterprises. Prior research has shown that while multinational enterprises ? across many sectors ? have already embraced the afore?mentioned advancements, their adoption by small?and?medium?sized enterprises (SMEs) has so far taken place mainly in the manufacturing sector. Thus, based on a sample of 280 self?tuned smart manufacturing SMEs and having utilized the structural equation modelling (SEM), this study was aimed to investigate how digital innovation is influenced by the three pillars of self?tuning models ? agility, adaptation, and ambidexterity. Our article has focussed on the digital systems in which SMEs, spurred by networking and open innovation solutions, operate and innovate in response to external triggers, displaying a balance between exploration and exploitation, and a strong agile capacity.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{zhang_1406,

title = {Failure prediction of magnesium alloys based on improved CDM model},

author = {Kai Zhang and Houssem Badreddine and Naila Hfaiedh and Khemais Saanouni and Jianlin Liu},

url = {https://www.sciencedirect.com/science/article/abs/pii/S0020768321000214?via%3Dihub},

year  = {2021},

date = {2021-01-01},

journal = {International Journal Of Solids And Structures},

volume = {217-218},

pages = {155-177},

abstract = {The aim of this contribution is to improve the behavior and failure prediction accuracy for magnesium alloy sheet forming simulation by using advanced fully coupled Continuum Damage Mechanics (CDM) model. Starting from known fully coupled constitutive equations at large inelastic (plastic or viscoplastic) strains, three aspects are enhanced on the CDM model developed by Saanouni (2012). The first one concerns the accurate description of tension-compression asymmetry in yielding and hardening of magnesium alloys induced by combined slip and twinning deformations. The second concerns introducing the stress state dependence in damage evolution to improve the fracture prediction under various loading paths. The third deals with temperature and strain rate (viscosity) effects for metal forming processes at elevated temperatures. The improved fully coupled constitutive equations were implemented into finite element code ABAQUS/Explicit via user subroutine VUMAT including the specific local integration scheme to compute the state variables at each quadrature point. Various kinds of tensile tests at different temperatures and strain rates are used to determine the material parameters, and the complete identification procedure is given in details. As validation, the improved model is applied to simulate the three-point bending and circular cup deep drawing tests, the predicted results show good agreements with the experimental observations.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{scuotto_1338,

title = {A repositioning organizational knowledge dynamics by functional upgrading and downgrading strategy in global value chain},

author = {Veronica Scuotto and Alexeis Garcia-Perez and Chiara Nespoli and Antonio Messeni Petruzzelli},

url = {https://www.sciencedirect.com/science/article/abs/pii/S1075425320305676?via%3Dihub},

year  = {2020},

date = {2020-12-01},

journal = {Journal Of International Management},

volume = {26},

number = {4},

pages = {100795},

abstract = {Small to medium enterprises (SMEs) are often marked by limited resources, a high dependence on others, and a scope of business that gets narrower as they seek to adapt to the current dynamic and knowledge-intensive context. Additionally, in their relationship with multinational enterprises (MNEs), SMEs are driven to a continuous specialization of their knowledge and technological resource bases. They so source global knowledge by positioning along a global value chain of those MNES. Especially SMEs employ a repositioning organizational knowledge dynamics by functional upgrading and downgrading strategy. In order to address the query on dynamic capabilities in knowledge management (KM) in different inter-organizational collaborations in the global value chain, this study shows that the choice between functional upgrading or downgrading can determine a more effective cross-innovation strategy which enables SMEs to exploit external paths to the market by revealing or selling their ideas, knowledge and technologies. Such strategies can reveal opportunities for SMEs to increase their network to find an optimum position in the market. SMEs, in turn, become more specialised in their offerings, moving up or down the global value chain, leveraging on a combination of dynamic and technological capabilities along with high degree of involvement in knowledge management process},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{scuotto_1407,

title = {A spill over effect of entrepreneurial orientation on technological innovativeness: an outlook of universities and research based spin offs},

author = {Veronica Scuotto and Manlio Del Giudice and Alexeis Garcia-Perez and Beatrice Orlando and Francesco Ciampi},

url = {https://link.springer.com/article/10.1007%2Fs10961-019-09760-x},

year  = {2020},

date = {2020-12-01},

journal = {Journal Of Technology Transfer},

volume = {45},

number = {6},

pages = {1634-1654},

abstract = {By shifting towards Romer's (Am Econ Rev 94:1002-1037, 1986) economy and so the spread of knowledge economy, universities started to adopt a collaborative approach with their entrepreneurial ecosystem. They turn out to be risk taker, autonomous, proactive, competitive, and innovative. In a nutshell, they are entrepreneurial oriented with the aim to generate new innovative ventures, known as research-based spin offs. Doubly, this has induced an improvement of technology transfer and the degree of entrepreneurship in the current knowledge economy. However there still is a paucity of studies on the spill over effect of entrepreneurial orientated universities and research-based spin off on technology transfer need to be more explored. Therefore, the article investigates the link between entrepreneurial orientation and such spill overs by offering an outlook of two universities and two research-based spin offs in the United Kingdom. The scope is to provide a deep view of technological innovativeness in a research context, entrepreneurial oriented. Our research suggests that entrepreneurial attitude has become an imperative to succeed in the context where British institutions currently operate. Entrepreneurship brings the necessary technological innovation to the university and its students, which results in better positioning of the university at national and international levels, with the subsequent impact on their ability to attract not only new students and academics but also funding to conduct their research.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{scuotto_920,

title = {Do stakeholder capabilities promote sustainable business innovation in small and medium-sized enterprises? Evidence from Italy},

author = {Veronica Scuotto and Alexeis Garcia-Perez and Valentina Cillo and Elisa Giacosa},

url = {https://www.sciencedirect.com/science/article/abs/pii/S0148296319303856?via=ihub},

year  = {2020},

date = {2020-11-01},

journal = {Journal Of Business Research},

volume = {119},

pages = {131-141},

abstract = {Sustainable innovation and its management have become fundamental forces for change in business and society. Paradoxically, little attention has been given to how small and medium-sized enterprises (SMEs) manage sustainable innovation in the current knowledge-intensive context. By studying 80 SMEs from the high-tech manufacturing sector in Italy, this research has found that, when combined with stakeholder engagement, sustainable innovation management becomes a pivotal phenomenon for new and established SMEs. Stakeholders proved instrumental in generating the sense of environmental responsibility in SMEs. As a pioneer combination of stakeholder theory and innovation management theory, our research found that stakeholder-related capabilities, both tangible and intangible, influence the firm's orientation towards sustainable innovation, its environmental responsibility and related capabilities. Our research assists the sustainability, adaptation, innovation and growth orientation of SMEs in a knowledge-intensive environment by recommending that, in their relationship with stakeholders, SMEs become more open to co-create, share and reuse environmental knowledge.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{badreddine_2810,

title = {A fully coupled damage model with stress triaxiality and Lode dependence},

author = {Houssem Badreddine and Naila Hfaiedh and Khemais Saanouni and K Zhang and J Liu},

url = {https://iopscience.iop.org/article/10.1088/1757-899X/967/1/012051},

year  = {2020},

date = {2020-10-01},

volume = {967},

number = {1},

pages = {012051},

abstract = {In the present work, an advanced CDM model considering stress triaxiality and Lode

angle effect is proposed. The framework of thermodynamics of irreversible processes with

state variables is used to build the constitutive equations accounting for strong and full

coupling between all the dissipative phenomena. The proposed model is implemented into

Finite Element (FE) code ABAQUS/Explicit via a user material subroutine (VUMAT). A

detailed parametric study with various values of the new material parameters is conducted in

order to show the predictive capability of the proposed model. Applications to sheet metal

forming simulation have been performed to validate the damage prediction capability of the

proposed model, and the numerical simulation results are analysed and discussed},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{alouache_2624,

title = {HSDN-GRA: a hybrid SDN-based geographic routing protocol with multi-agent approach},

author = {Lylia Alouache and Nga Nguyen and Makhlouf Aliouat and Rachid Chelouah},

url = {https://onlinelibrary.wiley.com/doi/10.1002/dac.4521},

year  = {2020},

date = {2020-10-01},

journal = {International Journal Of Communication Systems},

volume = {33},

number = {15},

pages = {1-xx},

abstract = {We propose in this paper a Hybrid Software-Defined Networking-based Geographical Routing Protocol (HSDN-GRA) with a clustering approach. It takes into account three different criteria to select the best relay to send data: (1) the contact duration between vehicles, (2) the available load of each vehicle, (3) and the log of encountered communication errors embedded in each cluster head. The multi-criteria strategy allows the selection of the most reliable vehicles by avoiding communication problems and ensuring connection availability. Once the hybrid control plane has found out the next eligible neighbor, the data plane will be in charge of dividing and sending data. To validate our approach, HSDN-GRA has been modeled and implemented in JADE, a multi-agent platform, to be compared to other multi-agent based protocols. Simulation results show that HSDN-GRA achieves good performance with respect to the average routing overhead, the packet drop rate, and the throughput.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{zhang_2810,

title = {A fully coupled damage model with stress triaxiality and Lode dependence},

author = {K Zhang and Houssem Badreddine and Naila Hfaiedh and Khemais Saanouni and J Liu},

url = {https://iopscience.iop.org/article/10.1088/1757-899X/967/1/012051},

year  = {2020},

date = {2020-10-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {967},

number = {1},

pages = {012051},

abstract = {In the present work, an advanced CDM model considering stress triaxiality and Lode

angle effect is proposed. The framework of thermodynamics of irreversible processes with

state variables is used to build the constitutive equations accounting for strong and full

coupling between all the dissipative phenomena. The proposed model is implemented into

Finite Element (FE) code ABAQUS/Explicit via a user material subroutine (VUMAT). A

detailed parametric study with various values of the new material parameters is conducted in

order to show the predictive capability of the proposed model. Applications to sheet metal

forming simulation have been performed to validate the damage prediction capability of the

proposed model, and the numerical simulation results are analysed and discussed},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{zhang_1270,

title = {Enhanced CDM model accounting of stress triaxiality and Lode angle for ductile damage prediction in metal forming},

author = {Kai Zhang and Houssem Badreddine and Naila Hfaiedh and Khemais Saanouni and Jianlin Liu},

url = {https://journals.sagepub.com/doi/full/10.1177/1056789520958045},

year  = {2020},

date = {2020-09-01},

journal = {International Journal Of Damage Mechanics},

volume = {30},

number = {2},

pages = {260-282},

abstract = {This paper deals with the prediction of ductile damage based on CDM approach fully coupled with advanced elastoplastic constitutive equations. This fully coupled damage model is developed based on the total energy equivalence assumption under the thermodynamics of irreversible processes framework with state variables. In this model, the damage evolution is enhanced by accounting for both stress triaxiality and Lode angle. The proposed constitutive equations are implemented into Finite Element (FE) code ABAQUS/Explicit through a user material subroutine (VUMAT). The material parameters are determined by the hybrid experimental-numerical method using various tensile and shear tests. Validation of the proposed model has been done using different tests of two aluminum alloys (Al6061-T6 and Al6014-T4). Through comparisons of numerical simulations with experimental results for different loading paths, the predictive capabilities of the proposed model have been shown. The model is found to be able to capture the initiation as well as propagation of macro-crack in sheet and bulk metals during their forming processes},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{scuotto_906,

title = {International social SMEs in emerging countries: Do governments support their international growth?},

author = {Veronica Scuotto and Manlio Del Giudice and Shlomo Tarba and Antonio Messeni Petruzzelli and Victor Chang},

url = {https://www.sciencedirect.com/science/article/pii/S1090951618301585?via%3Dihub},

year  = {2020},

date = {2020-08-01},

journal = {Journal Of World Business},

volume = {55},

number = {5},

pages = {100995},

abstract = {Through an empirical research developed based on a sample of five international social SMEs in a Chinese city, this study examines the internationalization of social enterprises. Its purpose is to evaluate the role played by governments in supporting international growth. This is done using behavioural theory dimensions of prevalence, relevance, urgency, accessibility, and radicalness. From our analysis, local government supports the launch of social SMEs but this is limited to their growth stage. Entrepreneurial skills and external networks, thus, become crucial factors in the development of a new international business development model, encouraging further scholarly investigation.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ladj_1967,

title = {A knowledge-based Digital Shadow for machining industry in a Digital Twin perspective},

author = {Asma Ladj and Zhiqiang Wang and Oussama Meski and Farouk Belkadi and Mathieu Ritou and Catherine DA CUNHA},

url = {https://doi.org/10.1016/j.jmsy.2020.07.018},

year  = {2020},

date = {2020-06-01},

journal = {Journal Of Manufacturing Systems},

volume = {58},

number = {Part B},

pages = {168-179},

abstract = {This paper addresses the problems of data management and analytics for decision-aid by proposing a new vision of Digital Shadow (DS) which would be considered as the core component of a future Digital Twin. Knowledge generated by experts and artificial intelligence, is transformed into formal business rules and integrated into the DS to enable the characterization of the real behavior of the physical system throughout its operation stage. This behavior model is continuously enriched by direct or derived learning, in order to improve the digital twin. The proposed DS relies on data analytics (based on unsupervised learning) and on a knowledge inference engine. It enables the incidents to be detected and it is also able to decipher its operational context. An example of this application in the aeronautic machining industry is provided to stress both the feasibility of the proposition and its potential impact on shop floor performance.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{wang_1966,

title = {Contextual classification for smart machining based on unsupervised machine learning by Gaussian mixture model},

author = {Zhiqiang Wang and Mathieu Ritou and Catherine Da Cugna and Benoît Furet},

url = {https://doi.org/10.1080/0951192X.2020.1775302},

year  = {2020},

date = {2020-05-01},

journal = {International Journal Of Computer Integrated Manufacturing},

volume = {33},

number = {10-11},

pages = {1042-1054},

abstract = {Intelligent machine-tools generate a large amount of digital data. Data mining can support decision-making for operational management. The first step in a data mining approach is the selection of relevant data. Raw data must, therefore, be classified into different groups of contexts. This paper proposes an original contextual classification of data for smart machining based on unsupervised machine learning by Gaussian mixture model. The optimal number of classes is determined by the silhouette method based on the Bayesian information criterion. This method is validated on real data from four different machine-tools in the aerospace industry. Manual data mining and k-fold cross-validation confirm that the proposed method provides good contextual classification results. Then, several key performance indicators are calculated using this contextual classification. They show the relevancy of the approach.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{turker_2708,

title = {Modeling social sustainability: Analysis of hospitality e-distributors},

author = {Duygu Türker and Gokce Ozdemir Umutlu},

url = {https://doi.org/10.1108/SAMPJ-02-2019-0035},

year  = {2020},

date = {2020-05-01},

journal = {Sustainability Accounting Management And Policy Journal},

volume = {11},

number = {4},

pages = {799-824},

abstract = {Abstract

Purpose



The purpose of this study is to propose a definition and model of social sustainability within the ambit of systems theory and to test it on hospitality e-distributors. The study suggests that social sustainability arises through the congruence among the interrelated components of social innovation, societal demand and social stakeholders in a transformation model and it can be assessed to whether and how this congruence addresses to the equity principles.

Design/methodology/approach



The study provides a case analysis on two selected hospitality e-distributors - Booking.com and Airbnb. The data obtained from a video-based content on managerial interviews were triangulated with the data of corporate disclosures and expert views derived from a focus group study.

Findings



The study reveals that both companies affect the intra-generational, procedural and geographical equity principles across physical and virtual communities so long as they take the advantage of their strategic positions. While Booking.com transforms its own industry, Airbnb disrupts the entire system by blurring the boundaries between market and non-market as well as touristic and non-touristic areas.

Practical implications



The study contributes to the practitioners by showing how to configure and assess the social sustainability of their organizations at the different contexts.

Social implications



The study provides a holistic perspective on social sustainability by linking the concept with social innovation, societal demand and social stakeholders and highlighting its contribution to equity principles.

Originality/value



Despite the proliferation of studies, the authors have very little understanding on the social pillar of sustainability. The current study fills the gap by addressing these conceptualization and measurement challenges in the literature.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{chentsov_3302,

title = {Relaxation of the Pursuit-Evasion Differential Game and Iterative Methods},

author = {Alexander Chentsov and Daniil KHACHAI},

url = {http://dx.doi.org/10.1134/S0081543820020042},

year  = {2020},

date = {2020-05-01},

journal = {Proceedings Of The Steklov Institute Of Mathematics},

volume = {308},

number = {Suppl 1},

pages = {35-57},

abstract = {A variant of the program iteration method called stability iterations is used for a differential game of pursuit-evasion. The successful solvability set of one of the problems generating the game is found as a limit of the iterative procedure in the space of sets whose elements are positions of the game. The game is defined by a pair of closed sets, one of the which is the target set in the pursuit problem (the first player's problem) and the other specifies the state constraints in this problem. For the positions not belonging to the solvability set of the pursuit problem, it is interesting to determine the smallest "size" of a neighborhood of the two mentioned sets for which the first player can implement the guidance to the neighborhood of the target set corresponding to this "size" within the similar neighborhood of the second set, i.e., the set specifying the state constraints. Similar constructions are considered for the sets realized at each stage of the iterative procedure. We use the connection of these constructions with the mentioned smallest "size" of neighborhoods of the sets that are parameters of the differential game in the sense of guaranteed realizability of guidance under the replacement of the original sets by these neighborhoods.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{scuotto_1194,

title = {Uncovering the micro-foundations of knowledge sharing in open innovation partnerships: An intention-based perspective of technology transfer},

author = {Veronica Scuotto and Beatrice Orlando and Valentina Cillo and Melita Nicotra and Leonardo Di Gioia and Massimiliano Farina Briamonte},

url = {https://www.sciencedirect.com/science/article/pii/S0040162519303415?via%3Dihub},

year  = {2020},

date = {2020-03-01},

journal = {Technological Forecasting And Social Change},

volume = {152},

pages = {119906},

abstract = {In the current dynamic and virtuous flow of knowledge economy, firms are concern about whether to manage innovation centrally or through decentralized business units. Two needs emerge 1. Guaranteeing organizational efficiency and 2. Exploiting effectively market opportunity. This usually implies the integration of knowledge in technology transfer which can be accrued via the knowledge sharing between parties. However, by looking into the technological and social change literature, previous studies were mainly focused on macro-foundation of technology transfer and organizational innovative capabilities with less consideration to the role of psychological precursors of collaborations. Due to this gap, we intended to build a consistent conceptual basis for collaborations and technology transfer practices at the micro level. Therefore, drawing on the theory of planned behaviour (TPB) we propose a micro-foundation model for collaborative innovation and technology transfer.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{baklouti_2622,

title = {Dynamic  fault  tree  generation  for  safety  critical  systems  within  a  systems engineering approach},

author = {Anis Baklouti and Nga Nguyen and Faïda Mhenni and Jean-Yves Choley and Abdelfattah Mlika},

url = {10.1109/JSYST.2019.2930184},

year  = {2020},

date = {2020-03-01},

journal = {Ieee Systems Journal},

volume = {14},

number = {1},

pages = {1512 - 1522},

abstract = {Systems are getting increasingly complex and challenging to design. For safety-critical systems, the integration between model-based systems engineering and model-based safety assessment to improve the choice of the system architecture since the early design stage becomes a necessity. One of the integration solutions is to generate fault trees (FTs), either static or dynamic, directly from the system description. In this paper, we are particularly interested in the generation of the dynamic fault trees (DFTs) of the systems that contain redundancies, which is widely used in safety-critical systems to enhance their reliability. The goal of this paper is, first, to propose a redundancy profile and, second, to automatically generate the DFTs from system models. Since errors are propagated via input and output ports of the components, the generation process starts with a depth-first search graph traversal through the systems modeling language internal block diagram of the system. This diagram is considered as a multidirected graph in order to detect the external inputs, the nonredundant components, the switch components, and the redundant components of the system. Then, the redundancy information incorporated in the system model is used to generate the appropriate combinations of the FT. This FT is represented in a suitable format that can be studied using FT analysis tools, for both qualitative and quantitative safety analyses.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{lebon_2853,

title = {Influence of Milling Tool and Prosthetic Materials on Roughness of the Dental CAD CAM Prostheses in End Milling Mode},

author = {Nicolas Lebon and Laurent Tapie and Elsa Vennat},

url = {https://www.mdpi.com/2076-3417/10/7/2238},

year  = {2020},

date = {2020-03-01},

journal = {Applied Sciences-Basel},

volume = {10},

number = {7},

pages = {2238-2252},

abstract = {Dental prostheses are machined by computer-aided design and manufacturing (CAD/CAM) tools. The integrity of the surface obtained, which must be suitable to meet expected clinical requirements is influenced by the milling parameters programmed. The integrity of the occlusal prosthesis surface obtained by the end milling mode, that is milling with a diamond rotary cutting tip, plays a major role in the clinical requirements desired. This study aims to investigate the impact of the tool-biomaterial couple in the CAD/CAM end milling mode on surface integrity (through roughness). Two CAD/CAM tools and four CAD/CAM biomaterials, both combined to four feed rates are tested. The surface roughness (Ra, Rt, Rz, Sa, Sq, and Sz) is observed for each couple. Finally, pairwise comparisons (Kruskal-Wallis test) of tool-biomaterial couples are performed. The results indicate that all the machined surfaces reveal isotropic surface topology. The roughness depends on the hardness of the biomaterial and not on the feed rate. The statistical tests reveal a significant difference in roughness depending on the tool used. To conclude, when milling the functional occlusal shape, biomaterial hardness and the tool used are key factors for achieving a given roughness consistent with clinical requirements.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{loux_1025,

title = {Multi-sided platforms in B2B contexts: The role of affiliation costs andinterdependencies in adoption decisions},

author = {Patrick Loux and Mathilde Aubry and Sébastien Tran and Emmanuel Baudoin},

url = {https://www.sciencedirect.com/science/article/pii/S0019850119300823?via%3Dihub},

year  = {2020},

date = {2020-01-01},

journal = {Industrial Marketing Management},

volume = {84},

pages = {212-223},

abstract = {Multi-sided platforms, enabling interactions between different user sides, hold an important place in the contemporary economy. Current literature, focusing on established and successful platforms, has neglected to study B2B multi-sided platform adoption mechanisms. In this article, we analyze these mechanisms by investigating the case of dematerialization platforms for B2B transactions between the multiple actors involved in public works contracts. Various qualitative materials, including 28 semi-structured interviews, were gathered over a thirty-month period. Adopting a business user perspective, this study contributes to the literature on multi-sided platforms in various ways. We show that platform adoption, in project-based B2B contexts, is mainly constrained by a high level of affiliation costs and the existence of tight-interdependencies between users' activities at project level. Thus, a consecutive adoption path would result in negative cross-group network externalities and undermine the platform's attractiveness. Conversely, a concurrent adoption path would activate positive network externalities and encourage platform adoption decisions.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}