A5101650396- Optical Wireless Communication Technologies
- Indoor and Outdoor Localization Technologies
- Tuberculosis Research and Epidemiology
- Underwater Vehicles and Communication Systems
- Mycobacterium research and diagnosis
- Radio Wave Propagation Studies
- Impact of Light on Environment and Health
- Long-Term Effects of COVID-19
- COVID-19 Clinical Research Studies
- UAV Applications and Optimization
- Bacterial Infections and Vaccines
- Infectious Diseases and Tuberculosis
- Dementia and Cognitive Impairment Research
- HIV/AIDS drug development and treatment
- Retinal Imaging and Analysis
- Vibrio bacteria research studies
- Syntax, Semantics, Linguistic Variation
- Optimal Power Flow Distribution
- Sparse and Compressive Sensing Techniques
- Clostridium difficile and Clostridium perfringens research
- Gastrointestinal motility and disorders
- Smart Grid Security and Resilience
- Ancient Near East History
- Power Systems Fault Detection
- Historical Astronomy and Related Studies
Southwest Hospital
2023
Army Medical University
2023
University of Massachusetts Lowell
2023
Shaoxing People's Hospital
2013-2022
Zhuhai People's Hospital
2012-2021
Wuhan Dongxihu District People Hospital
2020
University of Waterloo
2020
China Academy of Information and Communications Technology
2018-2019
Beijing Institute of Technology
2013-2017
Beijing Institute of Optoelectronic Technology
2016-2017
The occurrence and development of Parkinson's disease (PD) have been demonstrated to be related gut dysbiosis, however, the impact fecal microbiota transplantation (FMT) on engraftment in PD patients is uncertain. We performed a randomized, placebo-controlled trial at Department Neurology, Army Medical University Southwest Hospital China (ChiCTR1900021405) from February 2019 December 2019. Fifty-six participants with mild moderate (Hoehn-Yahr stage 1–3) were randomly assigned FMT placebo...
The Mycobacterium tuberculosis (Mtb)-specific T-cell interferon gamma release assays (IGRAs) are useful in detecting Mtb infection but perform poorly at distinguishing active disease (ATB) and latent (LTBI). This study is aimed evaluating additional cytokines as biomarkers besides interferon-gamma (IFN-γ) to improve the identification of ATB LTBI.Sixty-six patients with ATB, 73 household contacts (HHC) 76 healthy controls (HC) were recruited undergo QuantiFERON TB GOLD in-tube assay (QFT)...
Recently, several positioning systems based on visible light communications (VLC) have been proposed, and most of them are received signal strength (RSS) because its simplicity high accuracy. In order to improve the accuracy further, a differential detection-based algorithm is proposed. It can reduce instability caused by intensity fluctuation area outside light-emitting diode (LED) cell also be positioned. Experimental results show that proposed method from 10.0 4.0 cm standard deviation...
In this letter, we propose an indoor visible light positioning technique that combines deep neural network based on the Bayesian Regularization (BR-DNN) with sparse diagonal training data set. Unlike other networks, which require a large number of points to locate accurately, realize high precision only 20 in 1.8 m × 2.1 location area. Furthermore, test new optimization method set, is To verify our ideas, experimentally demonstrate three different acquisition methods contain common choice...
In this paper, we propose a hybrid indoor localization scheme with image sensor-based visible light positioning and pedestrian dead reckoning. The architecture algorithm of the proposed are analyzed. We build demonstrate two different prototypes single/multiple cells, which based on commercial light-emitting diode lamp off-the-shelf mobile phone equipped an sensor inertial measurement unit. Experimental results show that can achieve both cell recognition three-dimensional single captured...
Indoor visible light positioning becomes attractive due to the increasing demands of location-based services. This Letter proposes an indoor imaging scheme with a sampled sparse source, image sensor, and gyro. An cellular single reference source off-the-shelf mobile device is demonstrated. Experimental results show that 3-dimensional error only several centimeters even rotated, rolled, pitched device. The proposed convenient cost effective because transmitter takes advantage existing...
Visible light positioning becomes popular recently. However, its performance is degraded by the indoor diffuse optical channel. An artificial neural-network-based visible algorithm proposed in this Letter, and a trained neural network used to achieve with Simulations are made evaluate algorithm. Results show that average error reduced about 13 times, time two magnitudes. Moreover, robust different field-of-view of receiver reflectivity wall, which suitable for various applications.
The current treatment for multidrug-resistant tuberculosis (MDR-TB) takes a lengthy period of 18-24 months and has poor cure rate 50-60%. A multicenter, prospective cohort study was conducted to assess the role testing molecular susceptibility pyrazinamide (PZA) in optimising MDR-TB.We assigned 76 patients an optimised group 159 regular where PZA not determined. Of these patients, 152 were matched after propensity score matching (76 group). Treatment success measured propensity-matched as...
Facing the novel coronavirus disease 2019 (COVID-19), most vulnerable individuals are seniors, especially those with comorbidities. More attention needs to been paid COVID-19 patients Alzheimer's (AD), which is top age-related neurodegenerative disease.Since it unclear whether AD prone infection and progression severe stages, we report for first time a retrospective analysis of clinical characteristics pneumonia.We conducted cohort study data 19 pneumonia, compared 23 non-AD admitted at same...
In this letter, we propose an indoor visible light positioning technique using a Modified Momentum Back-Propagation (MMBP) algorithm based on received signal strength (RSS) with sparse training data set. Unlike other neural network algorithms that require large number of points to locate accurately, have realized high-precision for 100 test only 20 in 1.8 m × 2.1 localization area. order verify the adaptability MMBP algorithm, experimentally demonstrate two different acquisition methods...
The serological antibody detection tests offer several advantages for the rapid diagnosis of tuberculosis (TB). Mycobacterium tuberculosis-specific responses associated with different stages TB infection remain to be investigated.The Pathozyme-Myco IgG (Myco G), Pathozyme Complex Plus (TB Complex), IBL M. ELISA (IBL), Anda Biologicals (Anda-TB), and T-SPOT.TB (T-SPOT) were performed 133 active patients (ATB group), 131 controls (CON 95 subjects latent (LTBI group).The four all showed...
Recently, indoor visible light localization has become attractive. Unfortunately, its performance is limited by diffuse reflection. The reflection estimated the bilinear interpolation-based method. A received signal strength-based iterative positioning algorithm proposed to reduce influence of subtracting from signal. Simulations are made evaluate in a typical scenario with different parameters field-of-view (FOV) receiver and reflectivity wall. Results show that can average error 12 times...
An indoor positioning method based on metameric white light sources and subpixels a color image sensor is proposed in this paper. Metameric are obtained by merging multiple-color light-emitting diode (LED) chips with different intensity ratios. The output ratios of at the receiver employed to identify respective sources. Proof concept experiments demonstrates that average error 2-D 1.50 cm 3-D 3.58 cm. system cost effective convenient because sensors nowadays available mobile devices can be utilized.
Abstract Background When infected with Mycobacterium tuberculosis , only a small proportion of the population will develop active TB, and role host genetic factors in different TB infection status was not fully understood. Methods Forty-three patients 49 latent were enrolled prospective cohort. Expressing levels 27 candidate mRNAs, which previously demonstrated to differentially expressed measured by dual color reverse transcription multiplex ligation dependent probe amplification assay...
A light-emitting diode (LED) can be modulated in visible light positioning systems so that it acts as a transmitter with unique ID. However, we must able to support IDs for many different LEDs, and LEDs sometimes also need transmit other information. Therefore, is necessary increase the length of an LED long codes are prone contain excessive continuous strings 0s or 1s, which not conductive correct ID identification. The Manchester code usually used eliminate this phenomenon, but its...
In this paper we propose an omnidirectional large field-optical antenna with a dual-mirror structure and field devices demonstrate its utilization in ultraviolet (UV) communications. Theoretical analysis shows that it is suitable for short-range UV communication. Simulation indicates the optical gain 32, system has good spot uniformity. Additionally, incident angles of ray meet requirement interference filter (±10°). Outdoor experiments show angle FOV range ±20°~±80° SNR increase 31 dB...
Owing to different positioning methods in indoor locations that require base stations, the accuracy cannot be guaranteed, and cost of reconstructing station becomes high. In this paper, a method based on two-dimensional code with feature graphs using advantage scale-invariant transform (SIFT) is proposed, where reconstruction scene minimized, SIFT matching improved iteration transformation matrix. The experimental results demonstrated error within 1.2 cm for room dimension 7 m × 6 2.8 m....
Affected by atmospheric turbulence and multipath transmission, inter-symbol interference (ISI) is generated, communication speed limited in the channel of non-line-of-sight ultraviolet (NLOS UV) communication. Thus, MIMO space division multiplexing (MIMO-SDM) technology has a significant effect to reduce co-channel interference, fading improve transmission rate. Combined with characteristics UV noise, model capacity developed, application SDM based on vertical bell laboratories layered...
In the Taiwanese judicial system, Cause of Actions (COAs) are essential for identifying relevant legal judgments. However, lack standardized COA labeling creates challenges in filtering cases using basic methods. This research addresses this issue by leveraging embedding and clustering techniques to analyze similarity between COAs based on cited articles. The study implements various measures, including Dice coefficient Pearson's correlation coefficient. An ensemble model combines rankings,...
For indoor visible light communication (VLC) systems aim to achieve and illumination simultaneously, the channel capacity are significantly affected by demands in actual scenarios. To enhance system performance, wavelength division multiplex (WDM) technique can be introduced. In this letter, we analyzed of illuminance chromaticity's influence on WDM based color emitting diodes (LED). The spectra distribution, crosstalk noise VLC were relative optimal total was obtained optimizing number...