CA : A Cancer Journal for Clinicians

Brief Non-singular terminal sliding mode control of rigid manipulators

Nonsingular fixed-time consensus tracking for second-order multi-agent networks

Pinning adaptive synchronization of a general complex dynamical network

Security and privacy in electronic health records: A systematic literature review

Experimental investigation and one-way coupled fluid-structure interaction analysis of gas-liquid two-phase flow conveyed by a subsea rigid M-shaped jumper

A Usability Study of Cryptographic API Design

An online estimation algorithm of State-of-Charge (SoC) of Lithium-ion (Li-ion) batteries based on terminal sliding mode (TSM) observer technique is proposed. A first-order RC equivalent circuit model is utilized to describe the dynamical behaviors of Li-ion batteries. A sliding mode observer is developed to track the states of the Li-ion batteries and the control signal of the observer is used to estimate the SoC of a Li-ion battery accurately. The proposed observer is robust to internal parameter uncertainties of the battery model, and the environment changes. Compared with the traditional sliding mode observers, the proposed sliding mode observer has the continuous control signal, which can be used for the SoC estimation algorithm directly. The proposed method has been verified by the estimation results and the effectiveness has benn demonstrated.

An Online Estimation Algorithm of State-of-Charge of Lithium-Ion Batteries

Elbows and blind tees are two typical bending structures commonly used in offshore oil and gas pipeline systems. The primary purpose of this study is to explore the influences of different bending structures and Reynolds numbers on the fluid mixing conditions in turbulent flow regimes. Firstly, three-dimensional numerical simulations have been carried out on a typical 90° elbow and blind-tee pipes with a fully developed turbulent inlet flow. Then, detailed flow characteristics inside blind tees are analyzed by changing the blind-tee length and Reynolds number to figure out their effects on the flow mixing conditions. The results indicate that the bending structure is a critical factor affecting the fluid flow, and blind tees have a better effect on the fluid mixing than the traditional elbow. With the increase in Reynolds number, the mixing effect of blind tee becomes weak, and the low-speed fluid is more likely to concentrate on the inner side of the downstream pipe. This study can provide references for the design and improvement of offshore pipelines with bending structures.

Numerical Investigation on Turbulent Flow in Blind Tees

This chapter describes the sliding-mode control of permanent magnet synchronous motor (PMSM) servo systems. The typical structure of the systems consists of the position, velocity, and current control loops. The design of three controllers, position controller, speed controller, and current controller, and a filter in speed loop has been described respectively, aimed at reaching high-performances of PMSM servo systems, such as fast response, strong robustness, and high precision. The digitization of terminal sliding-mode (TSM) controllers of PMSM servo system has been discussed for the purpose of practical implementation.

Fengling Han

Papers

Experimental investigation and one-way coupled fluid-structure interaction analysis of gas-liquid two-phase flow conveyed by a subsea rigid M-shaped jumper

A Usability Study of Cryptographic API Design

An Online Estimation Algorithm of State-of-Charge of Lithium-Ion Batteries

Numerical Investigation on Turbulent Flow in Blind Tees

On Digitization of Variable Structure Control for Permanent Magnet Synchronous Motors