In modern power systems the smooth control of active flow is one major concerns for industry. current study authors devise an adaptive fractional order robust damping system static series synchronous compensator connected to infinite transmission network. A detailed non-linear state model presented with inclusion parametric uncertainties, disturbances and other non-linearities. novel sliding manifold proposed based on it controller derived. The uncertainty in estimated online using system....

Abstract This paper presents an existence theory for solitary waves at the interface between a thin ice sheet (modelled using Cosserat of hyperelastic shells) and ideal fluid (of finite depth in irrotational motion). The takes form review Kirchgässner reduction to finite-dimensional Hamiltonian system, highlighting refinements over years presenting some novel aspects including use higher-order Legendre transformation formulate problem as spatial Riesz basis phase space complete analogy with...

Many studies on nanofluid flow over a permeable/impermeable sheet prescribe the kinematics of and disregard sheet's mechanics. However, current study is one infrequent contributions that anticipate mechanics both electrically conducting (a homogeneous mixture nanoparticles base fluid) sheet. Two types nanoparticles, alumina copper, with water as fluid are considered. With help similarity transformations, corresponding partial differential equations for coupled nanofluid-sheet interface...

This paper presents the classical approximation scheme to investigate velocity profile associated with Falkner–Skan boundary-layer problem. Solution of equation is obtained for a model problem in which flow field contains substantial region strongly reversed flow. The investigates viscous liquid past semi-infinite flat plate against an adverse pressure gradient. Optimized results dimensionless profiles reverse wedge are presented graphically different values angle parameter β taken from...

The two National Weather Service (NWS) wind chill models in operation since 2001 have inherent errors. first model attempted and failed to make a facial surface temperature correction on the existing Siple Passel model. second model, intended as an improvement first, erred by mistakenly defining terms of internal body rather than temperature. To account for boundary-layer reduction free-stream velocity at head level, both incorrectly apply constant high-percentage this measured NWS 10 m...

Summary The aim of the study is to regulate human heart rate (HR) response a predefined reference profile during aerobic activities unknown type. A novel feature designed control system obtained generate desired rhythmic movements, which required achieve target HR These movements or frequency locomotion known as exercise (ER) and quantified fundamental measure intensity. relationship between ER modeled by using linear time‐varying system. parameters model are estimated Kalman filter. Based...

An enhanced performance solid rocket booster concept for the space shuttle system has been proposed. The will have strong commonality with existing, proven, reliable four-segment Space Shuttle Reusable Solid Rocket Motors (RSRM) individual component design (nozzle, insulator, etc.) optimized a five-segment configuration. Increased is desirable to further enhance safety/reliability and/or increase payload capability. Performance be achieved by adding fifth propellant segment current and...

Covers advancements in spacecraft and tactical strategic missile systems, including subsystem design application, mission analysis, materials structures, developments space sciences, processing manufacturing, operations, applications of technologies to other fields.

In Pishin frontier basin of Pakistan, there could be a high potential for Tertiary petroleum system to effectively operating in the same manner as Burma’s Irrawaddy basin. The owes its origin after subduction Indo-Pak plate under th

The external tank (ET) of the space transportation system (STS) contains liquid oxygen and hydrogen as oxidizer fuel for shuttle main engines. This article describes a two-dimensional flow thermal forced convection analysis to determine solar heat effects on launch components subsequent ET loading operation in extremely hot conditions. An existing computational fluid dynamics (CFD) code, parabolic hyperbolic or elliptical numerical integration code series (PHOENICS `81), was used study. done...

In the late 1990s, National Oceanic and Atmospheric Administration (National Weather Service) requested development of a replacement for Siple Passel wind chill model. Bluestein Zecher responded with model that failed to meet expectations because its inherent errors. That failure led this This has two major components. The first is an equation accurately determining temperature. second precisely calculating facial freezing time. time after initial exposure cold ambient when individual's face...