The maximally complicated arbitrary-dimensional “maximal” Galileon field equations simplify dramatically for symmetric configurations. Thus, spherical symmetry reduces the equations from the D− to the two-dimensional Monge-Ampere equation, axial symmetry to its cubic extension etc. We can then obtain explicit solutions, such as spherical or axial waves, and relate them to the (known) general, b...

The problem of generation and existence of large-scale vortices in the ionosphere is analyzed in this paper. Some exact solutions of the magneto-hydrodynamic (MHD) equations have been found and new invariants have been constructed allowing to descover mechanisms of generation of large-scale vortices and planetary waves in the electroconducting atmosphere under the action of non-conservative Cor...

This paper proposes an extended-flux model with core-loss resistance of SynRMs (synchronous reluctance motors) and precise torque estimation without core-loss measurement and position encoder. The proposed torque estimation is useful for precise MTPA (maximum torque per ampere) control of position sensorless controlled SynRMs, which is achieved with the assistance of active and reactive powers.

Disorders of consciousness are neurological conditions associated with low levels of functioning which pose a serious challenge to public health systems. The current study aimed to examine longitudinal changes in functioning in patients with disorders of consciousness and to identify associated biopsychosocial factors using the International Classification of Functioning, Disability, and Health...

The Dirichlet problem for a Monge-Ampère equation corresponding to a nonnegative, possible degenerate cohomology class on a Kähler manifold with boundary is studied. C1,α estimates away from a divisor are obtained, by combining techniques of Blocki, Tsuji, Yau, and pluripotential theory. In particular, C1,α geodesic rays in the space of Kähler potentials are constructed for each test configurat...

Background & Aims of the Study: Spent filter backwash water (SFBW) consists of 1-5% of the total treated water typically and it has a high turbidity. Because of the scarcity of water resources and in order to prevent the environmental contamination, effluent treatment of rapid sand filter backwashing is unavoidable. One of the new technologies for removal of turbidity from the ...

In companies or goods storage places, to see the value of load current in RST phase, we still use Clamp Ampere and doing power distribution using manual work by moving on phase from one MCB another until it is evenly distributed so that process takes time. this study, method observation literature study was used implement ACS712 sensor as a prototype splitter automation system 3-phase source ba...

This paper presents novel maximum torque per ampere (MTPA) and power (MPPA) sliding mode control (SMC) approaches for interior permanent-magnet synchronous motors (IPMs). We first derive the first-order SMC methods to improve field-oriented control's resiliency against external perturbations, extraneous noise modelling uncertainties. After that, we propose higher-order significantly reduce chat...

Unlike battery electric vehicles, extended-range vehicles have one more energy source, so a reasonable management strategy (EMS) is crucial to the fuel economy of vehicles. In this paper, an adaptive equivalent consumption minimization (A-ECMS)-based proposed for vehicle. The (ECMS), which utilizes Pontryagin’s minimum principle (PMP), introduced design EMS. Compared with other ECMS strategies,...

Material A 106 Gr. B termasuk dalam material seamless carbon steel pipe, dan sering digunakan untuk high-temperature service. Penelitian ini pemodelan menggunakan pipa B, 4 inch, sch 80 dengan panjang 150 mm. Proses pengelasan yang adalah GTAW SMAW. Untuk menemukan proses las parameter paling efektif pada setiap layer flowline, membandingkan variasi kuat arus listrik terhadap hasil uji sifat me...