Sediment microbial fuel cells (SMFCs) are a typical cell without membranes. They device developed on the basis of electrochemistry and use microbes as catalysts to convert chemical energy stored in organic matter into electrical energy. This study selected single‐chamber SMFC research object, using online monitoring technology accurately measure temperature, pH, voltage during start‐up process. In process start‐up, relationship between was analysed detail, correlation them calculated SPSS...

Diabetes mellitus (DM) is a metabolic disease characterized by high blood sugar. The main clinical types are type 1 diabetes and 2 diabetes. Now, the proportion of young people suffering from has increased significantly. Type chronic when it occurs in childhood adolescence, long incubation period. early symptoms onset not obvious, which may lead to failure detect time delay treatment. Long-term sugar can cause damage dysfunction various tissues, especially eyes, kidneys, heart, vessels...

In this study, we propose a novel 2D lag-complex logistic map (LCLM). The 2D-LCLM is derived from the conventional by extending its variables real numbers to complex field. bifurcation diagrams, Lyapunov exponents, and evolution of chaotic attractors have been exploited for evaluating behavior. Results show that has extensive intervals, good ergodicity, unpredictable trajectories. For further studying practical significance, then construct color image cryptosystem based on 2D-LCLM. Bit-level...

Atrial fibrillation (AF), as one of the most common arrhythmia diseases in clinic, is a malignant threat to human health. However, AF difficult monitor real time due its intermittent nature. Wearable electrocardiogram (ECG) monitoring equipment has flourished context telemedicine real-time and simple operation recent years, providing new ideas methods for detection AF. In this paper, we propose low computational cost classification model robust episodes ECG signals, using RR intervals...

Aiming at the problem of convergence speed and chattering in sliding mode variable structure control manipulator, an improved exponential reaching law nonlinear surface are proposed, Lyapunov function is used to analyze its stability. According dynamic model 6-DOF UR5 manipulator proposed surface, corresponding scheme designed. The performance verified by tracking end trajectory on MATLAB CoppeliaSim robot simulation platform. experimental results show that can not only significantly improve...

Sediment microbial fuel cells (SMFCs) are an alternative renewable power supply for sensors and communication. However, their low outputs limit practical applications. Maximum point tracking can overcome this limitation by boosting the output voltage optimizing energy generation of sediment cells. In present work, adaptive variable-step incremental-conductance algorithm is developed high-efficiency harvesting fast maximum power, even in a complex internal environment with significant...

Microbial fuel cells (MFCs) are devices that transform organic matters in wastewater into green energy. systems have strong nonlinearity and high coupling, which involves control science, microbiology, electrochemistry other disciplines. According to the requirements of microbial cell system for model robustness accuracy, we designed a comprehensive optimization framework. Firstly, influence uncertain parameters on was analyzed by combining global sensitivity analysis with uncertainty...

Gesture fingertip detection plays a vital role in human-computer interaction applications such as VR and robot control. To improve the accuracy of complex background, this paper proposes algorithm based on novel maximum discrimination HOG feature. Firstly, Holistically-nested edge is used to detect hand images non-hand images, features contour are extracted obtain training set positive negative samples reduce influence illumination, color, texture detection. Secondly, filtered from sample by...

With the development of smart grid, operation and control a power system can be realized through communication network, especially production enterprise management business involve large amount sensitive information, requirements for data security real-time transmission are gradually improved. In this paper, new 9-dimensional (9D) complex chaotic with quaternion is proposed encryption grid data. Firstly, we present mathematical model system, analyze its attractors, bifurcation diagram,...

Owing to the complex dynamics of quadrotor unmanned aerial vehicles (UAVs) and their susceptibility unknown interferences in an actual working environment, flight control accuracy UAVs is extremely high. Moreover, anti-interference ability particularly important. This study designed a sliding-mode controller based on extended state observer. The position was obtained through outer-loop controller. attitude determined inner-loop input UAV system boundary-layer function used weaken oscillatory...

Abstract A boundary element formulation is presented in this work for transient heat conduction analysis of three‐dimensional (3D) fiber‐reinforced materials. The cylindrical‐shaped fibers a 3D matrix are idealized by system curvilinear line elements with prescribed diameter. variations the temperature and flux fields circumferential direction represented terms trigonometric shape function together linear or quadratic variation longitudinal direction. This approach significantly reduces...

The distinctive characteristics of unmanned aerial vehicle networks (UAVNs), including highly dynamic network topology, high mobility, and open-air wireless environments, may make UAVNs vulnerable to attacks threats. Due the special security requirements, researching in reliability power communication drone monitoring system become important. has been studied. In order assess supply emergency system, accelerated life tests under constant stress were presented based on exponential...

Atrial fibrillation (AF) is a common abnormal heart rhythm disease. Therefore, the development of an AF detection system great significance to detect critical illnesses. In this paper, we proposed automatic recognition method named CNN-LSTM automatically heartbeats based on deep learning. The model combines convolutional neural networks (CNN) extract local correlation features and uses long short-term memory (LSTM) capture front-to-back dependencies electrocardiogram (ECG) sequence data....

In view of the characteristics industrial production control system with multi-parameters, nonlinear, long time delay, an improved Fuzzy-PID controller was put forward real parameters. This paper introduces basic idea PID and control, application fuzzy-PID controller. The process liquid mixing is characterized by high nonlinearity, delay multiparameters. Therefore, on-line based on fuzzy logical designed. Then, three simulation curves conventional algorithm, algorithm were compared between...

In this paper, normalized mutual information feature selection (NMIFS) and tabu search (TS) are integrated to develop a new variable algorithm for soft sensors. NMIFS is applied select influential variables contributing the output avoids selecting redundant by calculating (MI). A TS based strategy designed prevent from falling into local optimal solution. The proposed performs combining entropy MI validating error of artificial neural networks (ANNs); therefore, it has advantages over...

In order to ensure the accuracy, efficiency and energy saving of Unmanned Aerial Vehicles (UAVs) in irregular working areas, this paper has carried out research on its path planning methods. Taking heading angle return point agricultural UAVs as optimization objectives, plan was made by improving A* gravitational search algorithm optimal path. First, execution process is analysed, application model solved, then simulation experiment performed through MATLAB. The calculated proposed method...

<title>Abstract</title> To address the security and fraud issues associated with transmitting sensitive plaintext image data over public channels, a secure multi-party hybrid encryption-sharing scheme, which integrates 2D sine-cosine (2D-SC) chaotic system P-tensor product compressed sensing (PTP-CS), is proposed. Firstly, 2D-SC presented, its state variables performance are thoroughly analyzed. Secondly, by combining Logistic system, matrix keystream constructed. Under control of keystream,...

The present study proposes an active disturbance rejection sliding mode traction control system to deal with the dramatic change of joint angular acceleration and jitter attributed non-uniform during terminal manipulator based on use human-computer interaction (HCI) device, as well achieve high-precision high-speed control. First, trajectory generated by HCI device is mapped into motion space manipulator, a low-pass filter employed out high-frequency noises traction. Second, corresponding...