In this paper, we propose a novel framework, passive set-position modulation (PSPM), which enables us to connect (continuous-time) robot's position sequence of slowly updating/sparse (discrete-time) signal via the simple (yet frequently used in practice) spring coupling with damping injection, while enforcing passivity closed-loop robotic system. The PSPM modulates original such way that modulated is as close possible (i.e., maximum information recovery for better performance), yet only...

The process of electric multiple units (EMUs) passing long downhill sections is inevitable in the construction mountain railways. Moreover, huge regenerative braking energy (RBE) will be sent back to traction network, threatening voltage safety. Due lack accurate vehicle-grid integrated models considering slope parameters studying RBE, this article proposes a modeling scheme, taking China railway high-speed 3 (CRH3) EMUs as an example. First, based on extended dual pulsewidth modulation...

Simultaneous monitoring of the body’s biochemical and biophysical signals via wearable devices can provide a comprehensive assessment an individual’s health state. However, current multifunctional sensors for synchronous sensing rely on discrete units, posing limitation in increased complexity device assembly, signal processing, system integration. In this study, we report dual-mode self-powered sensor with ion pressure-sensing capabilities by interfacing hydrogel film solid ion-selective...

Pantograph arcing is a more and common prominent phenomenon in ac-electrified railway systems, especially with the increase of pantograph-catenary (PAC) interaction train speed. In order to address this issue, an extended Habedank's equation-based model, by means Electromagnetic Transients Program (EMTP), presented obtain equivalent modeling for pantograph studies considering speeds paper. First, investigated, such as transient mechanisms influencing factors. Second, based on features...

Aims: The screening and diagnosis of dengue virus infection play a crucial role in controlling the epidemic fever, highlighting urgent need for highly sensitive, simple, rapid laboratory testing method. This study aims to assess clinical performance MAGLUMI Denv NS1 detecting antigen. Methods: A retrospective was conducted sensitivity specificity using residual samples. Dengue-confirmed excluded samples, validated by qPCR, were subjected with accordance manufacturer’s instructions. linear...

The reactor system has multivariate, nonlinear, and strongly coupled dynamic characteristics, which puts high demands on the robustness, real-time demand, accuracy of control strategy. Conventional approaches depend mathematical model being controlled, making it challenging to handle system’s complexity uncertainties. This paper proposes a multi-variable strategy for nuclear steam supply based Deep Deterministic Policy Gradient reinforcement learning algorithm, designs trains intelligent...

With the rapid development of high-speed railways, fault detection and diagnosis for traction transformers are more important, method with high accuracy is key to assure normal operation power supply system. A based on kernel principal component analysis (KPCA) random forest (RF) proposed diagnose transformer faults in this study. In method, KPCA can obtain characteristics high-dimensional space through non-linear transformation original data dissolved gas analysis, RF utilise these...

As the operating speed of electric multiple units (EMUs) in high-speed railways increases, pantograph–catenary (PC) detachment arcing occurs frequently. The resulting vehicular-grounding electromagnetic transients are related to dynamic characteristics arc length. During large detachment, processes extinction and reignition may occur, more severe train body (TB) over-voltages adverse effects on some vehicular electronic devices. an extension previous works, this paper aims establish a...

In electrified railways, pantograph–catenary (PC) arc frequently occurs in the process of train passing through split-zone insulator, which threatens current collection PC and operation electric multiple units (EMUs). So far, there have been a few studies on analysis modeling insulator. It is noting that this research different from split-phase region. This article first analyzes dynamic variation distance as EMUs pass insulator deduces formula, can reflect length according to specific...

Lipid metabolism disorders are widely acknowledged as crucial risk factors for a range of metabolic diseases, including hyperlipidemia, obesity, nonalcoholic fatty liver disease, and atherosclerosis. Dysbiosis the gut microbiota is considered potential mechanism action in lipid disorders. Dendrobium huoshanense C.Z. Tang et S.J. Cheng (DH), an important edible medicinal Chinese herb, has been shown to regulate flora improve intestinal health. However, DH inhibits by regulating remains...

We propose a novel peer-to-peer (P2P) distributed control architecture for the shared haptic interaction among remotely located users over partially connected and undirected unreliable Internet communication network with varying delay, packet loss, data swapping/duplication, etc. Each user simulates interacts their own local copy of deformable virtual object (for responsiveness against latency), while these copies are synchronized via proportional-derivative type consensus experience...

With the increase of train speed, pantograph-catenary (PC) detachment becomes more frequent, which results in serious PC arc. In order to analyze influence arc on system, several models are established. However, these do not consider actual process. this paper, an extended black-box model is proposed, considers dynamic process based dynamics. First, Habedank presented and relationship distance with voltage dissipated power Next, trajectory obtained from simulation structure model. Then, by...

Pantograph-catenary (PAC) temperature rise is an increasingly common and prominent phenomenon in electrified vehicle transportation systems, especially with the increase speed. To address this issue, extended contact wire model of electric aiming at vehicle's lifting or dropping pantograph (LDP) presented paper. First, behaviors PAC double-slide are investigated, such as characteristic, thermal flow source, influence factors. Second, based on power balance, a distribution for static...

This paper aims to study the arc burning phenomenon of insulated rail joints in high-speed railway stations. First, combined with actual situation station and grounding mode electric multiple units, potential difference between two ends joint is calculated before wheel's arriving at cutoff point. Then, transient analysis carried out for ordinary wheel discharge wheel, respectively. Each process divided into three parts: reaches point, bridges generates an arc. The equivalent state-space...

The voltage fluctuation between the train body (TB) and train's wheel axis (TB for short), might cause electromagnetic interference (EMI) on brake control unit (BCU) speed sensor in some high-speed trains (HSTs), which may faulty measurement of incorrect operation door. Using a relevant event that occurred China railways 380CL-type as case study, this paper presents an evaluation scheme EMI influence TB BCU sensor. First, channels are researched, model representing relation signal reflecting...

The voltage problem generally exists in the high-speed train (HST) and may influence train's normal operation. It is important to analyze of body (TB) for safety protection. Taking China railways highspeed 380CL-type as an example, by means electromagnetic transients program, this paper proposes a systematic impedance modeling scheme that only aimed at low-frequency electrical conditions. Based on effective analysis regarding factors TB voltages, elaborated. At first, through investigation,...

In high-speed railways (HSRs), the overvoltages and overcurrents of train body (TB) are two critical issues for grounding safety reliable operation electric multiple units (EMUs). Running EMUs inevitably encounters all kinds electromagnetic transient scenarios, resulting in unfavorable surges on TB. To restrain surges, some optimization countermeasures, such as adding groundings, have been proved to be effective scenarios but easily bring more rail currents into Besides, only one or...

We propose a novel framework - passive set-position modulation which enables us to utilize the explicit position feedback over packet-switching communication network (e.g. Internet) with significant varying-delay and packet-loss, while enforcing energetic passivity at same time. The proposed is flexible (i.e. can accommodate varying data update-rate intermediate processing such as smoothing/reconstructuring); local decentralizable performance be locally tuned without consulting other sides...

When a long marshaling high-speed train (HST) with two raised pantographs passes an articulated split-phase region, there will be eight electromagnetic transient processes along pantograph arcing. These transients cause over-voltage in the body (TB), which can have negative effect on train's electronic equipment. In view of this issue, paper closely analyzes different generated by HST passing region. The analysis focuses identifying root causes and influencing factors relating to each...

Crumb rubber, as a recycled material used in asphalt mixture, has gained more attention recent years due to environmental benefits and the advantages of its pavement, such excellent resistance cracking, improved durability, less road maintenance, lower noise, etc. However, high-temperature performance mixture with crumb rubber does not perform well. In order improve performance, this paper examined effect additives on laboratory Stone Matrix Asphalt (AR-SMA) additives. Three groups AR-SMA:...

With the in-depth reform of intelligent manufacturing, selecting high-quality manufacturing system solution suppliers has become a key force to promote transformation enterprises. However, enterprises have hidden risks in selection process many suppliers, so it is urgent carry out research on risk evaluation suppliers. Based current situation China’s industry, this paper constructs index uses PLS-SEM method establish model collects data through questionnaire survey, PLS algorithm fit and...