Abstract One‐dimensional (1D) micro‐ and nanostructured electrode materials with controllable phase composition are appealing for use in lithium‐ion batteries high energy power densities, but they challenging to prepare. Herein, a novel ethanol–water mediated co‐precipitation method by chimie douce route (synthesis conducted under mild conditions) has been exploited selectively prepare an extensive series of manganese‐based materials, manifesting the considerable generalizability efficacy...

Purpose – The purpose of this paper is to test how integrative mechanisms, including information sharing and process coordination, influence logistics outsourcing, outsourcing performance from an extended RBV perspective. Design/methodology/approach structural equation modeling (SEM) method used examine the proposed model, based on data collected 361 companies in greater China. Findings Integrative mechanisms are helpful for (basic, customized, advanced outsourcing). Specially, contributes...

In today's increasingly serious world energy crisis, Renewable such as wind has gradually penetrated into life. Aiming at the uncertainty of power and need a mass sample data in nonparametric kernel density estimation, interval prediction method based on hybrid semi-cloud model estimation is proposed. Firstly, aiming asymmetrical distribution error, qualitative description error concept using And conceptual produced by are filtered through "3En rule". Secondly, according to fitting...

The state of lithium-ion battery is a key indicator for the management system (BMS) electric vehicles (EVs). State charge (SOC) and health (SOH) power cell are main parameters BMS during operation. In this paper, an adaptive unscented Kalman filter algorithm (AUKF) presented joint estimation SOC SOH batteries. Firstly, paper develops 2-RC equivalent circuit model identifies using recursive least squares with forgetting factor. Then, estimated simultaneously by AUKF. Finally, accuracy...

In view of the accumulation nanoplastics (NPs) in food chain environment and animals, good adsorption properties nano-plastics to toxic substances, it is necessary explore influence NPs living organisms. this study, single joint toxicological effects polystyrene (PS-NPs, size 80 nm) polychlorinated biphenyls (PCBs), were explored freshwater aquatic animal model zebrafish (Danio rerio). Our study found that exposure PS-NPs induced mild acute toxicity, albeit combined aggravated toxicity PCBs...

Based on the engineering problem of large deformation and support failure in roadway Ronghua No. 1 Mine, on-site situ stress testing was carried out to understand distribution characteristics around roadway. Then, a stability analysis conducted key factors causing failure. Combining situation results analysis, principle surrounding rock control high horizontal proposed. this principle, an optimized scheme designed. The original were comparatively analyzed through numerical simulation verify...

An accurate state of charge (SOC) estimation is great importance for the battery management systems electric vehicles. To improve accuracy and robustness SOC estimation, lithium-ion estimated using an adaptive square root unscented Kalman filter (ASRUKF) method. The roots variance matrices noise can be calculated directly by ASRUKF algorithm, which ensures symmetry nonnegative definiteness matrices. process values measurement covariance adaptively adjusted, greatly improves accuracy,...

Because of its clean and green, wind power is broadly used all over the world. Wind random unstable, so integration will inevitably bring great impact to system. Accurate prediction can effectively alleviate caused by uncertainty. In order increase accuracy prediction, this article uses paper swarm optimization algorithm (PSO) improve traditional Kalman filter, PSO-Kalman point model established. The proposed solves problem low filter observation noise process noise. Finally, based on error,...

This paper presents that the fractional order Kalman filter (FOKF) method is used to estimate state of charge (SOC) for lithium-ion battery based on model. First, a model was established which can better reflect dynamic characteristics battery. The orders were identified by genetic algorithm. Then, compared with three other modeling methods in four aspects: maximum absolute error, relative computational complexity and number parameters, it shown proposed this more accurate reliable. results...

This article presents a multiphysics design process considering multiobjective optimization for high-speed permanent magnet machines (HSPMMs) to obtain an optimized design. Based on the initial dimensions, parameters of active part rotor are further limited through analysis stress and dynamics. The electromagnetic characteristics is conducted under above ranges high efficiency low thermal load. cooling system analyzed field also studied using coupled fluid-temperature model. A prototype has...

Accurate estimation of battery state charge (SOC) is great significance to improve management and service life. An unscented Kalman filter (UKF) method used increase the accuracy SOC in this paper. Firstly, a model that parameters are identified by using least squares algorithm established, which foundation two-order RC equivalent circuit model. Secondly, estimated UKF. In order validate method, experiments have been carried out under different operating conditions for LiFePO 4 batteries....

The Energy Transfer Mode (ETM) in a Boost dc-dc converter is classified into two types, i.e., the Complete Inductor Supply (CISM) and Incomplete (IISM). critical inductance boundary condition of CISM IISM are derived paper. Based on classification, three operating modes defined, they CISM, Continuous Conduction (IISM-CCM) Discontinuous (IISM-DCM). Output voltage ripple (OVR) analyzed, respectively. As for with certain load, output capacitance switching frequency, OVR lowest independent...

Lung cancer is characterized by its high incidence and case fatality rate. Factors related to population composition prevention programme policy have an effect on the diagnosis of lung cancer. This study aims provide scientific support for early treatment investigating clinic information, pathological, imaging characteristics surgical patients with

The maximum peak current of inductor a buck DC-DC converter in Continuous Conduction Mode (CCM) and Discontinuous (DCM) are analyzed, respectively. It is pointed out that the through CCM occurs when both input voltage output reach highest values. inner-intrinsic safety determined by comparing with minimum ignition current. short-circuit discharged energy consists stored capacitor converter. Maximum Output Short-circuit Discharged Energy (MOSDE) within total operating range deduced. If MOSDE...

To obtain the optimal design method of RCD in flyback converter, influence clamp voltage VC on feedback energy Wf generated by Vf was analyzed. It is indicated that must be larger than and decreases with increment VC. The Wlk from leakage inductor researched, let Wf=Wlk, critical VCK obtained, this basis, methods parameters were proposed. validity theoretical analysis verified simulation experimental results.

To obtain the optimal design method of Inductance and Capacitance output intrinsic safety Buck DCDC converter, Output Short-Circuit Discharged Energy (OSCDE) a buck DC-DC converter in Continuous Conduction Mode (CCM) Discontinuous (DCM) are analyzed, respectively. It is pointed out that energy DCM independent inductance, while CCM increases with inductance. The Maximum OSCDE (MOSCDE) within whole operating range deduced. If MOSCDE less than corresponding minimum ignition energy, meets...

Power battery is the heart of electric vehicles, and accurate state charge (SOC) estimation crucial for management power battery. This paper proposes an adaptive strong tracking unscented Kalman filter (ASTUKF) algorithm to estimate SOC lithium-ion method doesn't need compute Jacobian matrix compared with traditional filter. can correct error caused by model update noise covariance in real time, which improves accuracy robustness The experiments LiFePO <sub...