Using computational singular perturbation as a diagnostic tool in ODE and DAE systems: a case study in heterogeneous catalysis

Author(s):  
Oscar Díaz-Ibarra ◽  
Kyungjoo Kim ◽  
Cosmin Safta ◽  
Judit Zádor ◽  
Habib N. Najm
ACS Catalysis ◽  
2021 ◽  
pp. 5189-5201
Author(s):  
Max Schumann ◽  
Monia R. Nielsen ◽  
Thomas E. L. Smitshuysen ◽  
Thomas W. Hansen ◽  
Christian D. Damsgaard ◽  
...  

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Krishnamurthy Ramanathan ◽  
Premaratne Samaranayake

PurposeThe purpose of this paper is to present an Industry 4.0 Readiness Assessment Framework (I4.0RAF) and demonstrate its applicability and practical relevance through a case study of a large manufacturing firm in an emerging economy.Design/methodology/approachThe research firstly involved a synthesis of recent literature for the identification of important determinants, and their constituent criteria, for assessing the readiness of a manufacturing firm to transition to an Industry 4.0 setting and structuring them into a readiness assessment framework that can be used as a self-diagnostic tool. The framework was illustrated through a case study. The empirical findings of readiness assessment are validated using semi-structured interviews of senior management of the organization.FindingsThe proposed I4.0RAF was found to be a practically applicable self-diagnostic tool that can be used to assess a firm's readiness to transition to an Industry 4.0 setting with respect to eight important determinants. Cross-functional participation in the assessment helped the organization to determine priorities and interdependencies among the determinants.Research limitations/implicationsThe determinants and their constituent criteria can be further streamlined using inputs from practitioners, consultants and academics.Practical implicationsThe findings demonstrate the interdependencies between the determinants, help to delineate interventions that can lead to synergistic outcomes and enabls planning to achieve higher levels of Industry 4.0 maturity.Originality/valueA self-diagnostic tool as a basis for an informed discussion on transitioning to an Industry 4.0 setting is presented and illustrated through a case study in an emerging economy.


2018 ◽  
Vol 27 (2) ◽  
pp. 448-463
Author(s):  
Margot Pujal i Llombart ◽  
Enrico Mora ◽  
Nicolás Schöngut-Grollmus

Abstract In this article, we present the development of a methodological diagnostic tool for the field of public health from an interdisciplinary perspective that articulates the biological, psychological, and social dimensions of human health from a post-structuralist and feminist perspective and epistemology. In prior research, we have developed a methodology for the study of chronic pain without an organic cause, or fibromyalgia (FM), that we call the psychosocial diagnosis of gender. That work addresses the analysis of the research object itself and, above all, a critical reconceptualization of health in general. We have also used qualitative fieldwork methods (life stories, discussion groups, and documentary material) in our study of people diagnosed with FM. Here, we present the actual tool we use in the Psychosocial Diagnosis of Gender, using a case study that enacts a displacement of the clinical diagnosis of FM towards its articulation with the psychosocial diagnosis of gender.


2020 ◽  
Vol 12 (3) ◽  
pp. 1
Author(s):  
Moreno Frau ◽  
Ludovica Moi ◽  
Francesca Cabiddu

Outside-in, inside-out, and blended marketing strategy perspectives represent an unbroken line of inquiry. Nonetheless, still few studies have empirically explored the distinctive characteristics of these three marketing strategy approaches. This study performs an in-depth retrospective longitudinal case study to explore how outside-in, inside-out, and blended marketing strategy approaches evolved. With this article, we enrich the marketing strategy debate by elucidating the in-depth features of the three approaches. This work also provides practitioners with a useful managerial diagnostic tool through which to identify firms’ marketing strategy approach, and potential mismatches with the environment.


2017 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Jose Antonio Barrera Vera ◽  
Gabriel Granado Castro ◽  
Joaquin Aguilar Camacho

ResumenEl análisis estratigráfico constituye una herramienta de diagnosis indispensable en obras de arqueología, que permite descifrar a arqueólogos, historiadores y antropólogos la disposición e interrelación entre los diferentes estratos y la ordenación cronológica de los restos hallados. En este campo, la fotogrametría realizada con cámara digital convencional y software de amplia difusión constituye una alternativa versátil, eficiente y asequible frente a las técnicas convencionales de representación, basadas en procedimientos artesanales y cargadas de subjetividad, cuyas principales limitaciones son analizadas. En este artículo se establecen una sencilla metodología y un modelo sistemático para la documentación y preservación de unidades estratigráficas en excavaciones arqueológicas, compatibles con la técnica de análisis estratigráfico basada en la matriz Harris. La validez y posibilidades del método han sido constatadas en el proyecto de intervención arqueológica desarrollado en la Capilla Real de la Catedral de Sevilla.AbstractThe stratigraphic analysis constitutes an essential diagnostic tool in archelogy works, which allows the archaeologists, historians and anthropologists to decipher the arrangement and interrelation between the different strata and the chronological ordering of the remains found. In this field, the photogrammetry realized with conventional digital camera and software of wide diffusion constitutes a versatile alternative, efficient and affordable in front of the conventional techniques of representation, based on artisan and loaded procedures of subjectivity, whose main limitations are analyzed. This article establishes a simple methodology and a systematic model for the documentation and preservation of stratigraphic units in archaeological excavations, compatible with the technique of stratigraphic analysis based on the Harris matrix. The validity and possibilities of the method have been verified in the project of archaeological intervention developed in the Royal Chapel of the Cathedral of Seville.


2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Torben Bjarke Ballin ◽  
Caroline Wickham-Jones

In connection with the recent examination, cataloguing and discussion of approximately 30,000 mainly Mesolithic lithic artefacts from Nethermills Farm at Banchory in Aberdeenshire, Scotland, excavated by the late James Kenworthy in the late 1970s and early 1980s, a small number of finds were identified as almost certainly whole or fragmented Late Upper Palaeolithic lithic artefacts, and others as pieces likely to date to this period. The Nethermills flint objects add to a growing list of Late Upper Palaeolithic sites and implements identified across Scotland, including tanged and other points, scrapers, and truncated pieces from Howburn in South Lanarkshire and Kilmelfort Cave on the Scottish west-coast, as well as tanged and other points from the Western and Northern Isles, with eastern Scotland so far having yielded none. On the basis of this case study, the authors suggest an approach for the continued search for Late-Glacial settlers in Scotland in general, as well as for further investigation of the large Nethermills Farm assemblage. The proposed approach suggests that we focus not only on diagnostic tool forms (in particular, tanged and backed points), which have been the focus of Scottish Late Upper Palaeolithic research thus far, but also include other chronologically significant elements, such as diagnostic technological attributes and full operational schemas.


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