The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Objective: To propose a method for clinical terminology extraction of traditional Chinese medicine (TCM). Methods: Conditional probability was used to measure the internal aggregation of terminologies while information entropy measuring the boundary degree of freedom (DOF), so as to establish a method to extract the clinical terminologies of TCM. Different model thresholds were set up to analyze the...
We propose a modulation format independent blind carrier phase estimation (MFI-CPE) algorithm for arbitrary mQAM coherent systems. Comprehensive numerical simulations and experimental results demonstrate its effectiveness and comparable performance to traditional BPS.
Mobile power substations (MPSs) are optimally designed to be installed on a truck bed for ease of transportation in order to provide an interface between two medium-voltage distribution systems under emergency or maintenance conditions. Based on the solid-state transformer (SST), a topology of N-series modules concept is proposed for MPS. The average control methods are used to balance the voltage...
The ideal Gaussian pulse can be more convenient to simulate the excitation of electromagnetic waves and its propagation characteristics, but the pulse and the actual local discharge current waveform is not exactly the same. At the same time, most of the previous research contents have adopted the simplified GIS simulation model, which does not take into account the influence of the arc of the basin...
We report on the fabrication and characterization of high performance InP-based ridge-waveguide distributed feedback lasers with InGaAs multi-quantum wells emitting at 2004 nm. By means of a relatively simple fabrication process, the device can operate stably with good performance.
Linear prediction is a commonly used approach to preprocess microphone signals for estimation of time delays from an acoustic source to different microphones. A typical linear prediction algorithm employs the least squares criterion to solve an optimization problem. This criterion, however, is not optimal for non-Gaussian distributed speech signals. In this paper, we propose a sparse preprocessing...
Transmit filters comprising piezoelectric resonators are fabricated in a Thin Film Bulk Acoustic Resonator (FBAR) technology. A filter's 2nd harmonic emissions (H2), generated by the resonators in the filter's output stage must be sufficiently small to prevent the filter from desensitizing a nearby receiver. Anti-parallel and anti-series connected resonator configurations, in which the H2 emissions...
An extended Butterworth-Van Dyke (EBVD) electrical equivalent circuit is used to model piezoelectric FBAR resonators that are: (1) electrically stimulated, (2) free to vibrate longitudinally, (3) chosen to be square (or rectangular) in shape, and (4) mechanically clamped at their perimeter. Such resonators, will exhibit both main and lateral mode responses. The EBVD equivalent circuit comprises a...
The structure design of ceramic package for packaging system in package is introduced in this paper. The reliability experiments of multi-layer ceramic package were simulated and analyzed by using the finite element method. We mainly studied the influence of the side size and sealing ring size on the reliability of the ceramic package structure, analyzed the stress and strain distribution of the ceramic...
We consider a D2D-enabled cellular network where user equipments (UEs) owned by rational users are incentivized to form D2D pairs using tokens. They exchange tokens electronically to "buy" and "sell" D2D services. Meanwhile the devices have the ability to choose the transmission mode, i.e. receiving data via cellular links or D2D links. Thus taking the different benefits brought...
Motion intention recognition plays an important role in robot-assisted applications. A Stacked Hidden Markov Model (HMM) method is proposed to enable the robot to recognize the intention of a human user based on his/her motion trajectories. The Stacked HMM method is constructed based on the relationship of the observed objects. The motion intention recognition model contains multiple HMMs. Each HMM...
A system based on fiber spectrometer was designed to detect the concentration of various artificial pigments contained in the solution. Using this system, the absorbance curves of five kinds of artificial colors of lemon yellow, sunset yellow, carmine, bright blue and amaranth were measured, and the absorption coefficient of each pigment at different wavelengths was calculated. The reliability of...
In order to conveniently measure the concentration of artificial pigments in different solutions, a portable measurement system was developed based on miniature fiber optic spectrometer (MFOS). With this system, the absorbance curves and the absorption coefficients in the visible band for five kinds of artificial pigments in different solutions were measured and calculated. By measuring the concentration...
This paper presents a temperature measurement system based on fluorescence intensity ratio of erbium-doped fiber. A novel compact system architecture consisted of 980nm pumping laser, 980/1550nm wavelength division multiplexer (WDM), one way Erbium doped fiber was developed. The system performance was verified by the relationship between temperature and the fluorescence intensity ratio(FIR)of 1450nm...
When a chaser with multi arms grasps a large tumbling target, the base of chaser and the target cannot reach relative static immediately, the residual angular momentum between them need to be exchanged between each other to achieve relatively static. In the process, the arms are susceptible to damage for the external impulse force. Based on the characteristics of large tumbling space debris, this...
This paper describes the electrostatic discharge (ESD) failure caused by parasitic BJT in N-substrate process. The study of ESD failures in P-substrate process[1-3] has been a topic of increasing interest. Meanwhile N-substrate process, which may cause unexpected ESD failure, has hitherto received little attention. Through data analysis, unexpected ESD failure in N-substrate process may be attributed...
Learning by demonstration enables a robot to learn and perform tasks from kinesthetic demonstrations. Gaussian mixture method with constraints is applied in this work to model the motion using its trajectories and enable a robot to learn motion skills for a simple surgical task with specific requirement. Tissue dividing experiments are demonstrated on a robotic surgical simulation platform to collect...
We demonstrate electrically pumped continuous-wave (CW) lasing near 1.5 pm at room temperature in microcylinder lasers with InAs quantum dot active regions. The microcylinder radius can reduce to 4μm at room temperature and contentious-wave lasing.
We propose distributed static and dynamic event-triggered control laws to solve the consensus problem for multi-agent systems with output saturation. Under the condition that the underlying graph is undirected and connected, we show that consensus is achieved under both event-triggered control laws if and only if the average of the initial states is within the saturation level. Numerical simulations...
Human detection in dense crowds poses to be a demanding task owing to complex background and serious occlusion. In this paper, we propose a novel real-time and reliable human detection system. We solve the human detection problem by presenting a novel cube surface model captured by a binocular stereo vision camera. We first propose a cube surface model to estimate the 3D background cubes in the surveillance...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.