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.
In molecular biology, phenotypes are often described using complex semantics and diverse biomedical expressions, thereby facilitating the development of named entity recognition (NER). Here, we propose a novel approach of recognizing plant phenotypes by cascading word embedding to sentence embedding with a class label enhancement. We utilized a word embedding method to find high-frequency phenotypes...
Diabetic retinopathy (DR) is an eye abnormality caused by long term diabetes and it is the most common cause of blindness before the age of 50. Microaneurysms (MAs), resulting from leakage from retinal blood vessels, are early indicators of DR, yielding a large body of diagnostic work focused on automatic detection of MA. However, automated detection of MAs is difficult because (1) the small size...
The existence of non-line-of-sight (NLOS) errors will considerably degrade the localization accuracy. Therefore, the NLOS node localization is investigated. In this article, we propose a NLOS node localization algorithm that utilizes the firefly algorithm. The objective function is established by the probability of propagation of NLOS and LOS according to the approximate maximum likelihood method...
We report the experimental discovery of intrinsic ferromagnetism in Cr2Ge2Te6 atomic layers by scanning magneto-optic Kerr microscopy. In this 2D van der Waals ferromagnet, unprecedented control of transition temperature is realized via small magnetic fields.
In reality, traffic demands are quite random, which usually deviate from the application conditions of a certain kind of signal control method and compromise the efficiency of traffic control. To solve such a problem, taking a typical isolated intersection as the research object, the adaptive control of an isolated intersection based on a complete phase group is proposed, which can automatically optimize...
The accurate short-term traffic flow forecasting is fundamental to both theoretical and empirical aspects of intelligent transportation systems deployment. In order to play the ARIMA model with good linear fitting ability and artificial neural network model with strong nonlinear relation mapping ability, this study aimed to develop a simple and effective hybrid model for forecasting traffic volume...
In this paper, we present a configurable architecture for corner detection in images based on the well-known Harris corner detection algorithm, and we demonstrate a field programmable gate array (FPGA) implementation of the proposed architecture. Our architecture is designed to be configurable across diverse operational trade-offs, which makes it useful for integration into a wide variety of application...
A low profile wide-angle scan phased array antenna is designed in this paper. With the tile architecture, profile of the phased array antenna is reduced dramatically; in addition, the main beam of antenna array can steer to the desired direction by combining the invasive weed optimization method with the active element radiation pattern of inter-element, which includes the effects of mutual coupling...
A probe-fed stacked U-slot patch antenna for satellite applications is presented. The impedance bandwidth (VSWR≤1.5) of 7.7% is achieved at the designed frequency fo. The simulated peak realized gain of the proposed antenna is about 9 dBi.
To acquire reliable medical ultrasound images and accurately detect vascular diseases, it is inevitable to improve axial resolution and contrast facilitating clearly definition of depth and thickness of blood vessel walls.
Sentinel lymph nodes (SLNs) are the first draining lymph nodes when metastatic cancer cells are spreading. Sentinel lymph node biopsy (SLNB), which is performed invasively, is the current standard treatment to determine whether the cancer cells are spreading or not. A non-invasive SLN imaging modality along with fine needle aspiration biopsy (FNAB) would be beneficial for staging the axillary lymph...
Recently, magnetomotive ultrasound (MMUS) imaging has been introduced to detect magnetic nanoparticles (MNPs) which are not able to be visualized by conventional B-mode ultrasound. However, to date, only forward-mode MMUS where the imaging object is placed in between an ultrasound probe and an electromagnet is implemented in the literature. Such a MMUS mode is not suitable for clinical use. To facilitate...
Recently, magnetomotive ultrasound (MMUS), which is capable of ultrasonic visualization of in vivo magnetic nanoparticle distribution challenging to conventional B-mode ultrasound, has shown its potential in extravascular ultrasound molecular imaging, magnetic nano-drug delivery monitoring, and sentinel lymph node identification. However, to date, only forward-mode MMUS where the imaging object is...
Shear wave elastography relies on acoustic radiation force to generate shear wave vibration. In magnetomotive ultrasound (MMUS), magnetic excitation along with magnetic nanoparticles (MNPs) induces magneto-vibration. Both types of tissue vibrations are in the range of few micrometers and not observable in conventional B-mode imaging. Computationally intensive sub-wavelength motion tracking is required...
Shear wave elastography relies on acoustic radiation force to generate shear wave vibration. In magnetomotive ultrasound (MMUS), magnetic excitation along with magnetic nanoparticles (MNPs) induces magneto-vibration. Both types of tissue vibrations are in the range of few micrometers and not observable in conventional B-mode imaging. Computationally intensive sub-wavelength motion tracking is required...
In this paper, we propose the frequency domain minimum variance (MV) method plus coherence factor (CF) weighting technique to improve the axial resolution of medical ultrasound images. The minimum variance beamformer is originally proposed to apply over aperture domain data to improve lateral resolution. Via the help of spectral whitening, the MV method can be applied to the frequency components which...
Power optimization based on intelligent algorithm draws more and more attention. This article presents a novel low power optimization strategy based on the high level software power management employing Markov Process for charactering the real running workload. This article formulates workload characterization and selection with stochastic process method, and solves the formula using dynamic voltage...
A Flywheel Energy Storage System (FESS) can solve the problem of randomness and fluctuation of new energy power generation. The flywheel energy storage as a DC power supply, the primary guarantee is to maintain the stability of output voltage in discharge mode, which will cause the variation of motor internal magnetic field. In this paper, taking a flywheel energy storage permanent magnet motor as...
Vegetation net primary productivity (NPP) has a great impact on terrestrial carbon cycle, which is an important index to determine the size of vegetation productivity and regulate ecological processes. In this paper, the urban with high spatial heterogeneity was selected as the research background, and the urban vegetation of Xuzhou was selected as the research object, then Landsat remote sensing...
Due to the durability of NVM, we are facing the great challenge of performing efficient memory defragmentation on persistent heaps. To address the problem, we propose an Online Persistent Memory Defragmentation (OPMD) method to manage persistent heaps. Employing two segment trees to track memory allocation and deallocation operations, our method can amortize the cost of global scan, and determine...
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.