The expansion plan obtained from a DC model based transmission planning (TEP) could be problematic in the AC network because is potentially inaccurate. However, solving TEP problems using still extremely challenging. motivation for this work to develop less relaxed model, on which more realistic solutions are obtained. proposed includes linear representation of reactive power, off-nominal bus voltage magnitudes and losses. Binary variables added avoid fictitious Garver's 6-bus system used...

Furanodiene is a sesquiterpene extracted from the essential oil of rhizome Curcuma wenyujin Y.H. Chen et C. Ling (Wen Ezhu). primary component in Wen Ezhu's oil, accounting for more than 20% by weight. In vitro, MTT assay was used to compare inhibitory effects furanodiene and on 11 human cancer cell lines. Compared showed stronger growth inhibitions Hela, Hep-2, HL-60, PC3, SGC-7901 HT-1080 cells with IC(50) between 0.6-4.8 microg/ml. vivo, also found exhibit uterine cervical (U14) sarcoma...

The impact of increasing penetration converter control-based generators (CCBGs) in a large-scale power system is assessed through model based small signal stability analysis. Three test bed cases for the years 2010, 2020, and 2022 Western Electricity Coordinating Council (WECC)in United States are used Increasing wind-based Type 3 4 PV Solar CCBGs tests. participation interaction synchronous traditional electromechanical interarea modes analyzed. Two new types dominated by identified....

The problem of adaptive tracking is considered for a class stochastic switched systems, in this paper. As preliminaries, the criterion global asymptotical practical stability probability first presented by aid common Lyapunov function method. Based on criterion, backstepping controllers are designed to guarantee that closed-loop system has unique solution, which globally asymptotically practically stable probability, and error fourth moment converges an arbitrarily small neighbourhood zero....

This paper is devoted to adaptive trajectory tracking of quadrotor systems with full-state constraints and random disturbances. The command-filtering technology combined error compensation mechanisms proposed deal the “explosion complexity” problem in traditional backstepping design reduction filtering errors. Barrier Lyapunov functions (BLFs) are constructed ensure that all system states do not violate boundary its constraints. command-filtered fuzzy controller designed such state breached...

To study the anti-tumor activities of furanodiene (C15H20O), a primary sesquiterpene compound isolated from essential oil rhizome Curcuma wenyujin YH Chen et C. Ling(Wen Ezhu), in vitro and vivo. In MTT assay was used to further effects time dosage on anti-proliferation against sensitive Hela, Hep-2, HL-60, U251 cells, based cytotoxic 12 human malignant tumor cell lines with Wen Ezhu as control., half-inhibitory concentration (IC50) observed. vivo uterine cervix (U14) selected conventional...

Model predictive control has been wildly used in the modern power electronic converter with advantages of multi‐objective optimization, no additional modulator is required and small grid current harmonic. However, switching operation not constant higher sampling frequency must be required. A novel direct using model (DPC‐MPC) strategy presented this paper, which achieve optimal vector prediction scheme operation. The calculation process greatly simplified due to voltage generated directly,...

In this paper, some easily verifiable conditions are derived for the existence of almost periodic solution an impulsive multispecies logarithmic population model in terms continuous theorem coincidence degree theory, which is rarely applied to studying differential equation. Our results generalize previous by Alzabut, Stamov and Sermutlu. Besides, our technique used paper can be study equation with linear perturbations.

The paper describes the design of a single-sided linear induction motor (SLIM) intended for an Articulated Funiculator (AF). A procedure is proposed where first analytical carried out to obtain preliminary geometry. based on approximate equivalent circuits under constrained conditions. In second step two-dimensional finite element method (2D-FEM) analysis performed validate accuracy models. modification and optimization are conducted acquire best design.

This paper analyzes and compares models for predicting average magnet losses in interior permanent-magnet motors with fractional-slot concentrated windings due to harmonics the armature reaction (assuming sinusoidal phase currents). Particularly, loss adopting different formulations solutions Helmholtz equation solve eddy currents are compared a simpler model relying on an assumed eddy-current distribution. Boundaries terms of dimensions angular frequency identified (numerically using...

CdZnTe (CZT) is proved to be a perfect material during the fabrication of detectors for X-ray and Gamma ray. However, Te inclusion one main defects in CZT crystal which influences electrical spectroscopic properties detectors. This paper presents optimization hot zone design operating conditions by direct mixed solution growth (DMSG) method order reduce formation inclusion. The temperature 890°C rate 5mm/day. With gradient increased from 20K/cm 40K/cm, number reduced sharply while size...

A state feedback fault tolerant (SFFT) controller based on the proportional multiple-integral (PMI) observer is designed to guide flexible bevel-tip needle (FBTN) into a desired plane safely under actuator faults. Firstly, nonlinear model of FBTN system linearized by using Jacobian method at equilibrium point. Then, PMI robust <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathcal{H}_{\infty}$</tex> method, which can estimate unmeasurable...

A new electronic ballast circuit for High Intensity Discharge (HID) lamps to achieve an "ultra" high efficiency of 95% is proposed In this paper. The first stage the which Is power factor correction boost converter has demonstrated >97% using SI MOSFET as switch. second ballast, a DC frequency Inverter been designed >98% efficiency. Thus overall expected be >95%. performance "ultra high" efficient when SIC MOSFETS are used discussed loss model developed compare Si or SiC devices.

&lt;abstract&gt;&lt;p&gt;In this paper, by using the Mawhin's continuation theorem, some easily verifiable sufficient conditions are obtained to guarantee existence of almost periodic solutions impulsive non-autonomous Lotka-Volterra predator-prey system with harvesting terms. Our result corrects in &lt;sup&gt;[&lt;xref ref-type="bibr" rid="b13"&gt;13&lt;/xref&gt;]&lt;/sup&gt;. An example and remarks given illustrate advantage paper.&lt;/p&gt;&lt;/abstract&gt;

In this paper, the single-phase boost power factor correction converter is discussed in detail. With Fourier series analysis of general model, low frequency model and high are proposed. From expression duty cycle, boundary between continuous current mode (CCM) discontinuous (DCM), study cusp distortion ripple output voltage developed. While components input described based on model. Theoretical results demonstrated by simulation experiments.

This paper introduces a double-DSPs controlled power conditioning system (PCS) for superconducting magnetic energy storage (SMES), which is used experimental study in dynamic simulation tests of system. Considering realization, voltage source converter (VSC) with chopper adopted the sample. The VSC PCS four-quadrant AC/DC and two-quadrant DC/DC converter, they can perform functions charge to or discharge from coil. In this paper, kind configuration synchronous frame based control method SMES...

The grid inverter with energy storage device in the different conditions include two operation modes, one is grid, other island operation. In mode, PQ control mathematical model and diagram are set up; operating V/f given. this paper, a simulation given Matlab, results of to demonstrate correctness strategy their models. An outstanding basis provided for experimental prototype development.

Based on pulse width modulation (PWM) technique, adaptive trajectory tracking of switched Buck power converters with parameter uncertainty is investigated in this article. By the aid backstepping an equivalent continuous controller designed to guarantee asymptotic stability closed-loop error system. For converter unknown parameters, PWM-based control input proposed such that digital system practically asymptotically stable, and converges arbitrarily small neighborhood origin. Simulation...