Crisp Separation Research Articles

Learning the latent dynamics of fluid flows from high-fidelity numerical simulations using parsimonious diffusion maps

We use parsimonious diffusion maps (PDMs) to discover the latent dynamics of high-fidelity Navier–Stokes simulations with a focus on the two-dimensional (2D) fluidic pinball problem. By varying the Reynolds number Re, different flow regimes emerge, ranging from steady symmetric flows to quasi-periodic asymmetric and chaos. The proposed non-linear manifold learning scheme identifies in a crisp manner the expected intrinsic dimension of the underlying emerging dynamics over the parameter space. In particular, PDMs estimate that the emergent dynamics in the oscillatory regime can be captured by just two variables, while in the chaotic regime, the dominant modes are three as anticipated by the normal form theory. On the other hand, proper orthogonal decomposition/principal component analysis (POD/PCA), most commonly used for dimensionality reduction in fluid mechanics, does not provide such a crisp separation between the dominant modes. To validate the performance of PDMs, we also compute the reconstruction error, by constructing a decoder using geometric harmonics (GHs). We show that the proposed scheme outperforms the POD/PCA over the whole Re number range. Thus, we believe that the proposed scheme will allow for the development of more accurate reduced order models for high-fidelity fluid dynamics simulators, relaxing the curse of dimensionality in numerical analysis tasks such as bifurcation analysis, optimization, and control.

The Internet of Musical Stuff

A recent initiative within ubimus research contemplates the development of an internet of musical stuff (IoMuSt) as a concept that interacts with and expands the pre-existing rubric of the internet of musical things (IoMusT). Opposed to the ontological fixedness of things, stuff is pliable, fairly amorphous, changeable depending on usage, context-reliant, either persistent or volatile. It encompasses adaptable and flexible temporalities, featuring non-allotable, non-monetisable and non-reifiable resources. Furthermore, IoMuSt highlights the distinction between object and subject, blurring this crisp separation. The IoMuSt rubric is sustained by aesthetic pliability, fostering an expansion of creative practices and a critical stance towards utilitarian human-computer interaction perspectives. The authors discuss key dimensions of aesthetic pliability as related to flexible infrastructures, open sources and methods, enhanced collaboration and a low ecological footprint. The properties of aesthetic pliability are explored within the realm of two case studies.

On Some New Concepts of Weakly Neutrosophic Crisp Separation Axioms

On Some New Concepts of Weakly Neutrosophic Crisp Separation Axioms

ECUPrint—Physical Fingerprinting Electronic Control Units on CAN Buses Inside Cars and SAE J1939 Compliant Vehicles

We fingerprint 54 ECUs from 10 cars, one of them being a heavy-duty vehicle that is compliant to the SAE J1939 standard. These later specifications implemented in commercial vehicles offer concrete sender addresses in every CAN frame, making physical characteristics easier to link to specific ECUs. This is not the case for traffic collected inside passenger cars where the allocation of CAN bus identifiers is non-uniform, without explicit sender and receiver addresses, making ECU identification more challenging. While previous research has shown good separation between ECUs even when single features are used, e.g., skews or maximum voltage level, prior results are based on a small number of cars, while our larger experimental basis proves that single features are likely insufficient to separate between a large number of ECUs. Concretely, for a crisp separation, at least four features seem to be needed, i.e., mean voltage, max voltage, bit time and plateau time, while clock skews or any single voltage feature lead to overlaps. We provide clear experimental bounds on the intra and inter-distances regarding skews and voltage features, not neglecting environmental variations which may occur when the car is running.

Neutrosophic Crisp Semi Separation Axioms In Neutrosophic Crisp Topological Spaces

The main goal of this paper is to propose a new type of separation axioms via neutrosophic crisp semi open sets and neutrosophic crisp points in neutrosophic crisp topological spaces, namely neutrosophic crisp semi separation axioms. Finally, we examine the relationship between them in details. And also includes the study of the connections between these neutrosophic crisp semi separation axioms and the existing neutrosophic crisp separation axioms. Moreover, many examples are presented, to illustrate the concepts introduced in this paper. and investigate their fundamental properties, relationships and characterizations.

Splitting GSM schemas: A framework for outsourcing of declarative artifact systems

Case Management is emerging as an important paradigm for Business Process Management. The Guard-Stage-Milestone (GSM) model is a recent case management approach that substantially influences OMG׳s emerging Case Management Modeling Notation standard. We study the problem of outsourcing part of a GSM schema to another party, and develop a formal framework that supports splitting and outsourcing of GSM schemas. One element of the framework focuses on restructuring the GSM schema to facilitate outsourcing while preserving the semantics of the original schema; the second focuses on locking protocols that define how the distributed parties should operate. Additionally, the framework allows parties to keep local parts of their GSM subschema private without affecting the outcomes of the global execution. The rules restructuring developed here enables a crisp separation of concerns, which allows reuse of existing GSM (and thus Case Management) engines for executing the subschemas. Both elements of the framework are formally proven correct.

False-negative urine protein electrophoresis by semiautomated gel electrophoresis.

Urine is evaluated by electrophoretic methods both to gather information about the location and degree of damage within the nephron and to detect and quantify monoclonal free light chains (Bence Jones proteins). For many years, urine protein electrophoresis consisted of concentrating the urine (usually >50-fold) followed by manual application of the concentrated sample to a gel. Recently, semiautomated methods have become available that allow for a more efficient application of urine to the gels. The Sebia Hydragel β1-β2 15/30 (Sebia, Inc.) method provides urine gel results with crisp separation of β1-β2 as recommended by the guidelines for clinical and laboratory evaluation of patients with monoclonal gammopathies (1). However, in a recent urine sample, despite the presence of 2288 mg/24 h of total protein, the urine protein electrophoresis gel failed to demonstrate the proteinuria although the urine had been concentrated 50-fold (Fig. 1A⇓ ). The technologist had observed sediment in the concentrated urine specimen. Because of …

2-Mercaptoethanol Treatment Improves Measurement of an IgMκ M-Protein by Capillary Electrophoresis

A recent consensus conference on monoclonal gammopathies recommended the use of high-resolution electrophoresis, which achieves crisp separation of the major β-1 (transferrin) and β-2 (C3) bands (1)(2). Capillary electrophoresis (CE) provides this degree of resolution and has an additional advantage of automating both the analysis and the presentation of serum protein electrophoresis results (3)(4)(5). We report a rare discrepancy in the CE measurement of an IgM M-protein in the serum. The patient, a 59-year-old man, was first referred in August 1999 for evaluation of alcohol dependence, thrombocytopenia, and splenomegaly. Hemoglobin was 140 g/L, the white blood cell count was 4.7 × 109/L, and the platelet count was 54 × 109/L. A bone marrow aspirate was almost entirely plasmacytoid lymphocytes consistent with Waldenstrom macroglobulinemia. In addition to the lymphoproliferative process, the patient suffered from alcoholic hepatitis. On the day the sample …