In this paper, a memoryless H∞ controller for a class of linear systems with state delay and input delay is presented using linear matrix inequality (LMI) technique. Several sufficient conditions which guarantee the ...
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High-throughput solutions and automation systems are commonly used in bioscreening tasks. In the last years, automation has become more and more important in the field of elemental and structural chemical analysis. A ...
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ISBN:
(纸本)9781467381833
High-throughput solutions and automation systems are commonly used in bioscreening tasks. In the last years, automation has become more and more important in the field of elemental and structural chemical analysis. A high amount of data points is generated, what requires a fast and ideally fully automated data processing and evaluation. Analytical laboratories involve a multitude of analytical devices with different measurement principles from various vendors with a heterogeneous control software environment often with different export data formats. This results in one of the main tasks in laboratory automation: the integration of various devices to increase the applicative flexibility. Therefore, homogenous communication protocols and data formats are required. Furthermore, to increase the mobility and a spatial independence of the operator modern mobile devices such as tablet PCs and mobile phones can be involved in laboratory processes. In this study, a data evaluation software is presented, which enables an effective data processing of measurement data acquired with various instruments for elemental and structural analysis. The raw data are imported from the device software and the processed data are saved using Excel files. The software Analytical Data Evaluation (ADE) was implemented according to a modular concept as a web application, what enables a simple adjustment to different devices using individual settings stored in filter and calculation methods. Hence, a maximum in flexibility related to the various raw data structure and the required statistical parameters to be calculated can be provided. The cross-platform data evaluation software is independently usable from the user's location with stationary PCs or mobile devices. The integration into an existing hierarchical workflow management system provides a maximum of automation applied both in method development and in routine tasks using various types of analytical principles in a fully automated enviro
This paper presents a variational model to compute the optical flow using image-driven functions. The intensity, gradient and smoothness have different influences on each image area. Thus, we propose the control funct...
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ISBN:
(纸本)9781612843858
This paper presents a variational model to compute the optical flow using image-driven functions. The intensity, gradient and smoothness have different influences on each image area. Thus, we propose the control functions that take the image as the input to tune the estimation process. We use the second moment matrix to characterize distinct image areas and embed these functions into the variational model. We also separate the gradient term and intensity term in the model. In addition, we use the coarse-to-fine strategy to deal with the large displacement in the image sequence. Experimental results show the stability of our proposed method on different image sequences.
Industrial assembly involves sensing the pose (orientation and position) of a part. Efficient and reliable sensing strategies can be developed for an assembly task if the shape of the part is known in advance. In this...
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ISBN:
(纸本)0818653329
Industrial assembly involves sensing the pose (orientation and position) of a part. Efficient and reliable sensing strategies can be developed for an assembly task if the shape of the part is known in advance. In this paper we investigate the problem of determining the pose of a convex n-gon from a set of m supporting cones, i.e., cones with both sides supporting the polygon. An algorithm with running time O(nm) which almost always reduces to O(n+m log n) is presented to solve for all possible poses of the polygon. As a consequence, the polygon inscription problem of finding all possible poses for a convex n-gon inscribed in another convex m-gon, can be solved within the same asymptotic time bound. We prove that the number of possible poses cannot exceed 6n, given m≥2 supporting cones with distinct vertices. Experiments demonstrate that two supporting cones are sufficient to determine the real pose of the n-gon in most cases. Our results imply that sensing in practice can be carried out by obtaining viewing angles of a planar part at multiple exterior sites in the plane. As a conclusion, we generalize this and other sensing methods into a scheme named sensing by inscription.
A novel approach to inspection is presented based on comparing a volumetric representation of a reference object to a volumetric representation of an actual object iteratively created from sensor data. The use of volu...
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The thermal conductivities of CFRP composites in the direction parallel to the fiber and vertical to the fiber and the specific heat of it were investigated by the methods of theoretical models and finite element anal...
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Parkinson's disease and Huntington's disease are two typical brain movement disorders, both of which have been studied extensively for decades. Dysfunctions in the basal ganglia-a group of subcortex nuclei in ...
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This article focuses on the problem of modifing the standard face identification approach for use in small-scale social dynamic environments, by focusing on adaptability rather than robustness. A design of adaptive fa...
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This article focuses on the problem of modifing the standard face identification approach for use in small-scale social dynamic environments, by focusing on adaptability rather than robustness. A design of adaptive face identification system is presented, along with the employed methods of online learning. The problem of ensuing bias-variance dilemma of an adaptive system is described and solved. The system is shown to be able to aptly adapt to new information and changes the environment, the final classification rate on MUG database was near 99%.
The simulation of the waves in the marine environment provides a simulation platform for the movement of the structures in the waves, which is the basis for the study of the motion performance and safety performance o...
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ISBN:
(纸本)9781728116976
The simulation of the waves in the marine environment provides a simulation platform for the movement of the structures in the waves, which is the basis for the study of the motion performance and safety performance of the marine structures. Knowing the ropes of the simulation methods and processes of the waves has great significance to the study of marine structures. In this paper, a detailed description of the wave simulation method is presented by comparing the different ocean simulation mathematical models and modeling methods. The wave simulation method based on the spectrum method is described, and the wave surface height diagram based on three typical wave spectra is obtained, and the error is analyzed of the significant wave height.
In off-road environments, the assessment and classification in travers-able and non-traversable areas is a challenging task. Not only does the drive-ability depend on the vehicle's state in combination with the en...
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ISBN:
(纸本)9783030112929;9783030112912
In off-road environments, the assessment and classification in travers-able and non-traversable areas is a challenging task. Not only does the drive-ability depend on the vehicle's state in combination with the environmental geometry, but also the assessment is complicated by noisy and wrong sensor data. Thereby, faulty evaluation may lead to severe harm to goods or people since either safety issues or reliability problems are caused. While for the control part behavior-based systems proved to be suitable due to their inherent robustness against unforeseen situations, robust perception is still an unsolved problem leading to severe system failures. This paper faces the perception problem by introducing a new data quality-based perception module based on the integrated Behavior-Based Control (iB2C) architecture. Therefore, a new concept of data quality in behavior-based systems and methods for quality aware data fusion are developed while taking advantage of the modularity, extensibility and traceability of the existing architecture.
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