A considerable amount of interest has been shown by researchers in the control of pneumatic drives over the past decade, for two main reasons, firstly, the response is very slow and the inability to attain set points is high due to hystiresis and secondly, the dynamic model of the system is highly non-linear, which greatly complicates controller design and development. To address these problems...

This paper deals with sliding mode control of converter and its application to distributed generation. Sliding mode control is used to control the voltage source converter in voltage or current control mode. Modeling and control of H bridge converter system using sliding mode control is proposed. Easily implemented sliding surfaces provide prominent dynamic characteristics against changes in th...

It is well-known that using the standard completion of the squares (CoS) formula for the LQ regulator problem, the H∞ controller derivations and associated H∞ controller existence conditions can be directly obtained. In standard theory for general H∞ output-feedback control and in the associated software, certain preliminary “loop-shifting” transformations are needed which it turns out add unne...

Recent results in plug-in hybrid electric vehicle (PHEV) power management research suggest that battery energy capacity requirements may be reduced through proper power management algorithm design. Specifically, algorithms which blend fuel and electricity during the charge depletion phase using smaller batteries may perform equally to algorithms that apply electric-only operation during charge ...

Two subtle aspects of brane intersections are investigated. The first concerns the ‘half-branes’ that arise in discussions of the Hanany-Witten effect, often in the D0/D8 setting. The second involves the validity of seemingly singular classical BPS brane intersections. A study of holomorphic curves in the background of a Kaluza-Klein monopole and the associated reduction to type IIA supergravit...

An input-series output-parallel (ISOP) system, in which multiple converter modules are connected in series at the input sides and parallel at the output side, is very suitable for high input-voltage, low output-voltage, and high output-current applications. Input-voltage sharing (IVS) and output-current sharing of the constituent modules among the ISOP system must be ensured. The existing IVS c...

This paper presents and analyzes a new approach to data hiding that embeds in both the intraand interframes from the H.264/AVC video codec. Most of the current video data hiding algorithms take into account only the intraframes for message embedding. This may be attributed to the perception that inter-frames are highly compressed due to the motion compensation, and any embedding message inside ...

We solve N = 2 supersymmetric Yang-Mills theories for arbitrary classical gauge group, i.e. SU(N), SO(N), Sp(N). In particular, we derive the prepotential of the low-energy effective theory, and the corresponding Seiberg-Witten curves. We manage to do this without resolving singularities of the compactified instanton moduli spaces. on leave of absence from ITEP, Moscow, Russia