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Miniaturized Inertial Measurement Unit (IMU) has been widely used in many motion capturing applications. In order to overcome stability and noise problems of IMU, a lot of efforts have been made to develop appropriate data fusion method to obtain reliable orientation estimation from IMU data. This article presents a method which models the errors of orientation, gyroscope bias and magnetic disturbance,...
Ambulatory blood pressure is critical in predicting some major cardiovascular events; therefore, cuff-less and noninvasive beat-to-beat ambulatory blood pressure measure-ment is of great significance. Machine-learning methods have shown the potential to derive the relationship between physio-logical signal features and ABP. In this paper, we apply random forest method to systematically explorer the...
The geo-mechanical classification - rock mass rating (RMR) - is used for categorizing rock mass. Assessing RMR is an important factor for successful accomplishment of a tunneling project. In the rock mechanics and mining literatures, some empirical methods exist between rock mass and other rock properties, such as using characteristic of the rock, geological structure etc. However, those means have...
Sensor-to-segment calibration is a critical step for motion reconstruction from inertial and magnetic measurement units (IMMUs). In this paper, a novel sensor-to-segment calibration protocol is proposed. The protocol consists of three stages that allow for in situ calibration. After the sensor units are attached to the body, predefined postures and movements are used for sensor calibration. Acceleration...
In this paper, we present a novel viscous fluid mechanics based Arteries Modeling and Central Aortic Pressure (CAP) Estimation method (M-CAP). According to the blood fluid dynamics equations, the behavior of artery vessels system can be modeled by a network of electrical circuit consisting of resistances, inductances and capacitances. The transfer function between radial artery and central aortic...
As one of the resident birds in all of arports in Hunan Province, Oriental skylark (Alauda gulgula) behaves more frequent activities in summer and autumn especially, which impact on the safe operation of aircrafts greatly. To guide the work of bird protection around the airport, a fundamental study about the aggregative behaviors and habitat selections of oriental skylark was conducted from July,...
Human back movement estimation is clinically important for assessing patients with back pain. Most current techniques are limited to simple spinal movement angles without consideration of surrounding muscle movement and backplane rotation and torsion. These three dimensional analysis is fraught with difficulties due to the complex nature of the movement and sensor placement. In this paper, a consistent...
Three schemes are adopted, which are combined with different spray angle of nozzles and spray penetration of the HSDI diesel. By means of FIRE software, the engine performances are predicated based on the key parameters, such as fuel-air equivalence ratio, flow velocity, NOx and soot concentration, and the combustion, NOx and soot's formation process are analyzed. If the fuel spray process could promote...
The development of broadband high power klystron has being done in the Institute of Electronics, Chinese Academy of Sciences (IECAS), and the breakthrough of the bandwidth of klystron has been obtained continuously. In S-band, after the achievement of 10% and 11% bandwidth, the relative instantaneous bandwidth of 12% has been brought to success in 2009. The paper introduces the design, simulation...
One important prerequisite for improving the level of university interdisciplinary is to establish a comprehensive evaluation system for the evaluation of existing interdisciplinary. A comprehensive evaluation system including ten indices was built based on the analysis of interdisciplinary construction in college. On the basis of this evaluation system, it analyzes the interdisciplinary level of...
According to industry experience, expertise and indepth research, a type of evaluation index system for undermine production of colliery safety is established. Fuzzy Hierarchy evaluation method is applied to determine the weights and scores of evaluation indexes and the grade of undermine production of colliery safety based on a large amount of statistical data of a stateowned colliery, and then suggestions...
With the development of the power system in China, more and more series capacity compensations have been used in transmission system extensively and the SSR problems caused by series capacitance compensation also come. For mitigating the SSR in transmission system, a mitigation measure based on SVC bas pointed and its control principle has been introduced. The complex torque coefficient approach based...
An open and extensible framework of mass customization systems is needed for supporting the seamless integration of customization system, CAX tools and legacy systems. The emergence of service-oriented architecture (SOA) has brought about a loosely coupled computing environment that enables flexible integration and reuse of heterogeneous systems. In this paper, an SOA-based architecture of product...
A novel scheme and algorithm of differential protection, which employs not only the power frequency component but the transient components based on distributed parameter line model, is proposed, as well as the distributed capacitive current is taken into account accordingly. The operating travelling waves Fcom and Bcom are defined as the forward and backward travelling wave that calculated with the...
The paper proposes a cluster-based on demand multicast routing protocol (CODMRP) to the lack of extension of flat multicast routing protocols in ad hoc networks of large scale. CODMRP refers to the advantages of fitness for high-speed movement of mesh-based ODMRP, and adopts an enhanced weighted clustering algorithm (EWCA) to manage hierarchically its motion nodes, and forms the forwarding group mainly...
In this paper, the method of conflict analysis based on rough set is applied to investigate the satisfactions of the optimized decision of the water resources allocation in the inland river basin of arid regions. Analyzing the support of the decision for the special districts (e.g., upriver, middle-river and downriver), respectively, in the inland river basin of arid regions, the feasibility of an...
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