control systems for intelligent buildings based on environmental measurements. The information contained in the measurement data in many cases are independent and chaotic. You can not interact with the control system,...
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Among health behaviors, physical activity has the most extensive record of research using passive sensors. control systems and other system dynamic approaches have long been considered applicable for understanding hum...
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Among health behaviors, physical activity has the most extensive record of research using passive sensors. control systems and other system dynamic approaches have long been considered applicable for understanding human behavior, but only recently has the technology provided the precise and intensive longitudinal data required for these analytic approaches. Although sensors provide intensive data on the patterns and variations of physical activity over time, the influences of these variations are often unmeasured. Health behavior theories provide an explanatory framework of the putative mediators of physical activity changes. Incorporating the intensive longitudinal measurement of these theoretical constructs is critical to improving the fit of control system model of physical activity and for advancing behavioral theory. Theory-based control models also provide guidance on the nature of the controllers which serve as the basis for just-in-time adaptive interventions based on these control system models.
作者：
Shixing WangFuchun SunYongquan ZhangBin XuYiwei ZhangDepartment of Control Engineering
Naval Aeronautical and Astronautical UniversityYantaiChina Department of Computer Science and TechnologyTsinghua UniversityBeijingChina Systems Engineering Research InstituteChina State Shipbuilding Corporation School of AutomationNorthwestern Polytechnical UniversityXi''anChina
In this paper,one robust adaptive controller is proposed for hypersonic flight dynamics with high gain observer (HGO) and neural networks (NNs).For the attitude subsystem,it contains flight path angle,pitch angle and ...
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ISBN:
(纸本)9781479946983
In this paper,one robust adaptive controller is proposed for hypersonic flight dynamics with high gain observer (HGO) and neural networks (NNs).For the attitude subsystem,it contains flight path angle,pitch angle and pitch *** avoid the complex back-stepping design,the dynamics are transformed into the normal feedback *** HGO estimating the newly defined states,the controller is proposed with error feedback,NN approximation and the robust *** is proved that the NN weights and filtered tracking error are guaranteed in the semiglobal *** simulation with March 15 is conducted to show the effectiveness of the proposed method.
This paper describes a new method for how interfering MIMO links might transmit more effectively in a random access network. We assume perfect transmitter-side channel state information, zero-forcing pre-coding to gua...
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This paper describes a new method for how interfering MIMO links might transmit more effectively in a random access network. We assume perfect transmitter-side channel state information, zero-forcing pre-coding to guarantee no interference on links that have already won access, and zero-forcing receiver processing at the still-contending links to suppress interference from the links that have already won. We define an effectiveness metric, the Instantaneous Equivalent SNR Percentile (IESP), in which the Equivalent SNR is the SNR of a single-input-single-output (SISO) link that would have the same capacity of a MIMO link after its interference constraints have been met and the IESP is the percentile of the Equivalent SNR, assuming independent Rayleigh fading. We propose that fairness among heterogeneous contending links be realized by giving the shorter contention window to the link with the higher IESP based on its own distribution, enabling links with few antennas to compete with links that have many antennas. Through simulation of the sum capacity of the winning set of links, the proposed contention window design is shown to provide a higher sum capacity than contention based on equal-sized windows.
We discuss the problem of discovering changes in evolving XML schemas. Schema evolution is a natural, unavoidable phenomenon in contemporary data systems, that impacts both data transformation and query rewriting. We ...
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ISBN:
(纸本)9783642323348
We discuss the problem of discovering changes in evolving XML schemas. Schema evolution is a natural, unavoidable phenomenon in contemporary data systems, that impacts both data transformation and query rewriting. We propose a rule-based algorithm that determines matched and unmatched schema elements thereby identifying changes in a schema under consideration. Additionally, we develop a method for computing edit distance in terms of some schema operations (insertion, deletion, renaming, and translocation). In result, we are able to obtain a set of operations which transform a given schema into the modified (target) form. The proposed algorithms have been fully implemented.
Precision Spray is a technique to increase performance of Precision Agriculture. This spray technique may be aided by a Wireless Sensor Network, however, for such approach, the communication between the agricultural i...
Precision Spray is a technique to increase performance of Precision Agriculture. This spray technique may be aided by a Wireless Sensor Network, however, for such approach, the communication between the agricultural input applicator vehicle and network is critical due to its proper functioning. Thus, this work analyzes how the number of nodes in a wireless sensor network, its type of distribution and different areas of scenario affects the performance of communication. We performed simulations to observe system's behavior changing to find the most fitted non-controlled mobility model to the system.
We determine the maximum amount of work extractable in finite time by a demon performing continuous measurements on a quadratic Hamiltonian system subjected to thermal fluctuations, in terms of the information extract...
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We determine the maximum amount of work extractable in finite time by a demon performing continuous measurements on a quadratic Hamiltonian system subjected to thermal fluctuations, in terms of the information extracted from the system. The maximum work demon is found to apply a high-gain continuous feedback involving a Kalman-Bucy estimate of the system state and operates in nonequilibrium. A simple and concrete electrical implementation of the feedback protocol is proposed, which allows for analytic expressions of the flows of energy, entropy, and information inside the demon. This let us show that any implementation of the demon must necessarily include an external power source, which we prove both from classical thermodynamics arguments and from a version of Landauer's memory erasure argument extended to nonequilibrium linear systems.
Representation for 3D cardinal direction relations is a fundamental problem in the research field of direction relation. In order to better meet the demands of real applications of 3D spatial data, we devise a model w...
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The XML（eXtensible Markup Language） determines the basic format for data exchange in the ***（Document Type Definition） is the common schema *** advantages are especially because of its structure and the simplicity...
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ISBN:
(纸本)9781467349994
The XML（eXtensible Markup Language） determines the basic format for data exchange in the ***（Document Type Definition） is the common schema *** advantages are especially because of its structure and the simplicity of its *** DTDs are limited:They have only a few set of basic types and they miss the expressiveness to execute the context dependent declaration of *** XML-Schema Definition（XSD） is supported by W3C（World Wide Web Consortium） and thus gets the most *** Schema language was developed to avoid the disadvantages of *** it clears the most disadvantages of DTD,another one,the extended DTD（eDTD）,has even a stronger *** this paper we will use grammar analysis to proof the expressiveness of the different XML-Schema Languages.
This paper presents a user interface for vision based indirect teaching of a robotic manipulator with Kinect and IMU (Inertial Measurement Unit) sensors. The user interface system is designed to control the manipulato...
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