Abstract The MSWI fly ash which contains a large number of heavy metal substances is subsidiary product waste incineration power generation technology. If the disposed improperly, pollutants will pose great threat to environmental safety and human health. Based on technology electrokinetic remediation, feasibility removing from using modified remediation device - cylinder was evaluated in this study. Differing traditional cuboid with volume ratio cathode chamber anode being 1:1, 16:1....

Abstract Due to the heavy workload of RSS collection, instability WLAN signal strength and disappearance signals caused by complex indoor environments, construction radio map for wireless local area network (WLAN) fingerprint-based positioning system is time-consuming laborious. In order rapidly deploy system, bidirectional encoder representation from transformers (BERT) model used fill missing in quickly build map. The imported into BERT form natural language text, filled model. Since...

The performance of classic radar geometry based on the line-of-sight (LOS) signal transmitted from to target in free space is affected by multipath echoes urban areas, where non-line-of-sight (NLOS) signals reflected obstacles are received radar. Based prior information situation, this article proposes a novel two-stage localization algorithm with exploitation dense clutter environment. In offline stage, propagation parameters uniformly distributed samples field view predicted ray-tracing...

In order to improve the thermo-oxidative and ultraviolet (UV) aging resistance of bitumen, absorber (UVA) was intercalated into organo-montmorillonite (OMMT) absorber-intercalated (UVA/OMMT) used modify bitumen. Four kinds UVA/OMMT, including UV326/OMMT, UV328/OMMT, UV531/OMMT, UV770/OMMT, were prepared by organic intercalation OMMT with different UVAs (UV326, UV328, UV531, UV770). X-ray diffraction testing evaluate effect UVA/OMMT. UVA/OMMT-modified bitumen melt blending base UVA/OMMTs....

With the development of information technology, indoor positioning technology has been rapidly evolving. Due to advantages high accuracy, low cost, and wide coverage simultaneously, received signal strength‐ (RSS‐) based WLAN become one mainstream technologies. A radio map is basis for realization system. However, by reasons huge workload RSS collection, instability wireless strength, disappearance signals caused occlusion people objects, construction a time‐consuming inefficient. In order...

Images captured in bad weather are not conducive to visual tasks. Rain streaks rainy images will significantly affect the regular operation of imaging equipment; solve this problem, using multiple neural networks is a trend. The ingenious integration network structures allows for full use powerful representation and fitting abilities deep learning complete low-level In study, we propose generative adversarial (GAN) with attention mechanisms image rain removal Firstly, best our knowledge,...

A Horst-type Wilkinson power divider with miniaturization and harmonic suppression is presented in this letter, where T-shaped structures are used to replace two quarter-wavelength transmission lines for compact circuit size. The design formulas analyzed detail. To suppress higher further miniaturization, radial stub substituted open stub. Finally, the proposed not only achieved a size decrease of 64% compared structure Horst type at 1.5 GHz, but also provides -16.5 dB until 5.3 f0. Measured...

Abstract Recent years have witnessed a growing interest in using WLAN fingerprint-based method for indoor localization system because of its cost-effectiveness and availability compared to other systems. In order rapidly deploy system, the crowdsourcing is applied alternate traditional deployment method. this paper, we proposed fast radio map building utilizing sensors inside mobile device Multidimensional Scaling (MDS) The collects RSS sensor data while user walking along straight line...

A 40Gbit/s Free Space Optical (FSO) communication system using Alternate Mark Inversion (AMI) encoded signals is designed in this scheme. It uses Dense Wavelength Division Multiplexing (DWDM) multiplexer to complete the simultaneous multiplexing of 16-channel AMI signals, realizing transceiver and transmission optical signal. Modeled analysis system, numerical simulation tested time domain diagram, spectrum eye diagrams, bit error rate (BER) other indicators DWDM-AMI signal before after...

In modern complex industrial processes, due to poor rationalization of alarm systems and the complexity process interconnections, floods are commonly present. Alarm also identified as main causes many accidents. One valid approach deal with is mine meaningful sequential patterns from floods. These can help analyze root or configure dynamic alarming modules. this paper, a method based on combination ClaSP Top-K proposed interesting historical data. Main contributions study twofold: 1) A...

To improve the transceiver quality of Free Space Optical (FSO) system and ensure that user access is feasible network, a high-speed full-duplex 100 meters FSO transmission scheme using 67% duty cycle RZ-4PAM downlink alternative mark inversion (AMI) uplink signals designed system. In downlink, one PAM sequence generator Mary pulse (MPG) module are used to generate optical at 10Gbit/s through Mach-Zehnder intensity modulator (MZM). The upstream AMI by pseudo-random binary (PRBS) precoding...

Connected automated vehicles (CAVs) share information through vehicular networks; however, cyber-attacks on GPS may cause significant challenges to compromise vehicle security and driving safety. In this paper, a novel approach for attack detection mitigation is proposed using vehicle-to-vehicle (V2V) communication, which enables access utilize accurate location autonomous driving. Instead of directly fusing the data received from other vehicles, trust evaluation process with...

In the field of indoor Wi-Fi localization, Received Signal Strength (RSS) is commonly used for positioning. However, it limited by low sampling density and signal instability. To address this issue, study introduces an innovative localization approach applying Bidirectional Encoder Representation from Transformers (BERT) to We propose a data recovery strategy that significantly improves positioning accuracy while requiring only small number samples construct complete wireless map....

In actual urban scenes, the uncanonical facilities complicate EM wave propagation environment, which makes traditional methods hard to work. To solve this problem, a novel method for Localization based on ray tracing is established. Firstly, technique introduced calculate theoretical path from target, by dictionary of predicted multipath signals relative different position parameters constructed. Consequently, target can be estimated via matching Euclidean distance between received echoes...

In order to improve the transmission performance of visible light communication (VLC) system and user’s demand for large-capacity high-speed, one multi-color VLC scheme is proposed. This uses red-green-blue light-emitting diode (RGB-LED) as sender transmit 4-ary pulse amplitude modulation (4PAM) signals with 67% return-to-zero (RZ). At receiver, optical bandpass filter used channel separation. By simulation, we have measured time-domain waveforms before after transmission, eye diagrams three...

Multi-target localization in a multipath environment is complex problem. The accuracy of the existing Time Arrival (ToA)-based monostatic radar method low under condition multi targets and high error level. A multi-target based on joint utilization ToA Doppler via proposed this paper to solve can improve effectively premise known frequency. Initially, analyzes relationship between frequency returns actual velocity target. Then ToA-based obtain initial estimation position each target,...

Abstract Due to the heavy workload of RSS collection, instability WLAN signal strength and disappearance signals caused by complex indoor environments, construction Radio Map for Wireless local area network (WLAN) fingerprint-based positioning system is time-consuming laborious. In order rapidly deploy system, Bidirectional Encoder Representation from Transformers (BERT) model used fill missing in quickly build Map. The imported into BERT form natural language text, filled model. Since...

Feature extraction is a crucial part of the stereo matching algorithm based on deep learning. The existing algorithms have poor effects smaller objects in background and low-texture areas, which leads to decrease disparity estimation accuracy. To improve accuracy estimates, we propose TUNet, Transformer-based iterative update network this paper. After feature module, attention mechanism positional encoding Transformer are added network, enables transformed features better combine global...

Convolutional neural network (CNN) is widely used in the field of image restoration, however, most existing CNN based restoration methods only focus on a part without considering relationship between deblurring, de-raining and denoising. In addition, training model for different tasks requires large amount data, plenty hardware overheads great deal time. order to reduce resource consumption improve generality model, this paper proposes an algorithm using multistage progressive...

Abstract Extracting traffic information from images plays an important role in Internet of Vehicle (IoV). However, due to the high-speed movement and bumpiness vehicle, motion blur will occur image acquisition. In addition, rainy days, because rain is attached lens, target be blocked by rain, distorted. These problems have caused great obstacles for extracting key transportation images, which affect real-time judgment vehicle control system on road conditions, further cause decision-making...

Abstract Recent years have witnessed a growing interest in using WLAN fingerprint-based method for indoor localization system because of its cost effectiveness and availability compared to other systems. In order rapidly deploy positioning system, the crowdsourcing is applied alternate traditional deployment method. this paper, we proposed fast radio map building utilizing sensors inside mobile device Multidimensional Scaling (MDS) The collects RSS sensor data while user walking along...