In response to the issue of system oscillations in direct current (DC) microgrid systems with constant power loads (CPL), this paper proposes a non-singular terminal sliding-mode control (NTSMC) strategy based on improved salp swarm algorithm (ISSA). Firstly, state-feedback exact linearization technique is employed establish linearized model converter system. Then, NTSMC composite surface desig...

The free boundary of smectic A (SmA), nematic and isotropic liquid phases were studied using a polarized optical microscope, an interferometric surface structure analyzer (ISSA), an atomic force microscope (AFM) and a scanning near-field optical microscope (SNOM). Images of the SmA phase free surface obtained by the polarized microscope and ISSA are in good correlation and show a well-known foc...

To improve the accuracy of coal and gas prominence prediction, an improved sparrow search algorithm (ISSA) optimized support vector machine (SVM) based on Markov chain Monte Carlo (MCMC) filling prediction model were proposed. The mean value data after in missing values using MCMC was 2.282, with a standard deviation 0.193. Compared fill method (Mean), random forest (random forest, RF), K-neare...

Bint al-Shaṭi' is one of the few modern Muslim female figures who developed Islamic scholarship, especially interpretation Al-Qur'an. Issa J Boullata praised al-Shaṭi’ method as a that has many advantages. The first objective to identify background and principles al-Shati' interpretation. second objective, find peculiarities advantages compared others. third important things logical consequence...

The accurate prediction of electricity-heat-cooling-gas loads on the demand side in integrated energy system (IES) can provide significant reference for multiple planning and stable operation IES. This paper combines multi-task learning (MTL) method, Bootstrap improved Salp Swarm Algorithm (ISSA) multi-kernel extreme machine (MKELM) method to establish uncertain interval model loads. ISSA intro...

OBJECTIVES Chimpanzee termite fishing has been studied for decades, yet the selective processes preceding the manufacture of fishing tools remain largely unexplored. We investigate raw material selection and potential evidence of forward planning in the chimpanzees of Issa valley, western Tanzania. MATERIALS AND METHODS Using traditional archaeological methods, we surveyed the location of pla...

The optimal control problem of reservoir group flood is a complex, nonlinear, high-dimensional, multi-peak extremum with many complex constraints and interdependent decision variables. traditional algorithm slow easily falls into the local optimum when solving optimization groups. intelligent has characteristics fast computing speed strong searching ability, which can make up for shortcomings a...

This paper reports on a 20-month study of chimpanzee nesting patterns in Issa, Ugalla, western Tanzania. Ugalla is one of the driest, most open, and seasonal habitats where chimpanzees are found. The methods used were ethoarchaeological, as the chimpanzees were not habituated and behavioural observations were rare. Systematic data on the spatial and temporal distribution of nests are presented....

In this paper, a traction load model parameter identification method based on the improved sparrow search algorithm (ISSA) is proposed. According to characteristics of AC power supply system under transient disturbance, structure equated composite static shunt induction motor’s dynamic load. The traditional enhance its accuracy and convergence. generalization ability was tested, proposed verifi...