The rapid increase of non-linear loads in the last three decades has caused electrical quantities such as voltages and currents in 3-phase distribution systems to become distorted waveforms. This paper reviews, explains and discusses some new concepts, definitions and new available theory in the unbalanced and distorted systems. The usefulness of the proposed practical definitions is investigat...

Density Current is formed when a fluid with heavier density than the surrounding fluid flows down an inclined bed. These types of flows are common in nature and can be produced by; salinity, temperature inhomogeneities, or suspended particles of silt and clay. Driven by the density difference between inflow and clear water in reservoirs, density current plunges clear water and moves towards a d...

Introduction: Neurons in layer II and III of the somatosensory cortex in rats show high frequency (33 ± 13 Hz) of miniature excitatory postsynaptic currents (mEPSCs) that their rates and amplitudes are independent of sodium channels. There are some changes in these currents in neurodegenerative and psychological disorders. Regarding to well known roles of the neuromodulatory brain systems in...

this paper presents a new control method for a three-phase four-wire unified power quality conditioner (upqc) to deal with the problems of power quality under distortional and unbalanced load conditions. the proposed control approach is the combination of instantaneous power theory and synchronous reference frame (srf) theory which is optimized by using a self-tuning filter (stf) and without us...

in this paper, a new field oriented control scheme with maximum torque for permanent magnet hysteresis synchronous (pmhs) motor has been presented. vector control method provides significant improvement to the dynamic performance of ac motors but in this method d- axis current is controlled such as the ratio of motor torque to motor current is a maximum, then the dynamic performance will be ver...

☆ The authors are grateful to Li Qingyang, James Z with data collection, and to Jun Yu and an anonymou the Centre for International Governance Innovation lisches Wilhelms Universität Münster, the June 2011 and Financial Econometrics, the 2011 Western Econo nance Association Conference in Macau — where thi ⁎ Corresponding author at: Wilfrid Laurier Univers E-mail address: [email protected] (P.L. Si...

University of Western Australia, Nedlands, WA. Fiona R Lake, MD, FRACP, Associate Professor in Medicine and Medical Education, Education Centre, Faculty of Medicine and Dentistry; Jeffrey M Hamdorf, PhD, FRACS, Associate Professor in Surgical Education, School of Surgery and Pathology. Reprints will not be available from the authors. Correspondence: Associate Professor Fiona R Lake, Education C...

......................................................................................... II CHAPTER 1 – INTRODUCING THE STUDY ............................................. 1 THE PERSONAL CONTEXT ........................................................................... 2 THE PROFESSIONAL CONTEXT ...................................................................... 5 THE REGISTERED PHARMACIST...

the aim of this paper is to extend a hybrid protection plan for power transformer (pt) based on mra-ksir-ssvm. this paper offers a new scheme for protection of power transformers to distinguish internal faults from inrush currents. some significant characteristics of differential currents in the real pt operating circumstances are extracted. in this paper, multi resolution analysis (mra) is use...

this article is a report of calculation and measurements of a p+-n insb photo-diode leakage current fabricated by mesa on the basis of the calculation and measurement of different leakage currents in insb photo-diode along with its variation it shows that at relatively low reverse biases (up to about 300 mv) g-r and shunt current are dominant. but at high reverse biases the tunneling current do...