The management of power systems has become more difficult than earlier because power systems are operated closer to security limits, environmental constraints restrict the expansion of transmission network, the need for long distance power transfer has increased and fewer operators are engaged in the supervision and operation of power systems. Voltage stability has become a major concern in man...

The ground-based microwave radiometer provides a unique opportunity to continuously derive instability indices of the troposphere based on the temperature and humidity profiles. In the present study, three different kinds of instability indices are considered: (a) based on the temperature and dew point values at selected levels only, e.g. K index, (b) based on the energy available for convectiv...

The luminous high-redshift (z = 2.17) quasar S5 0836+710 has been observed in October 1997 with the VSOP at 1.6GHz and 5GHz. We report here a previously unpublished image made from the data at 1.6GHz and compare the structure of a relativistic jet in this quasazr at the two frequencies. We present a spectral index image tracing spectral properties of the jet up to ∼ 40 milliarcsecond distance f...

introduction: assessing quality of life for patients with shoulder instability may be essential because of the negative impacts of the disease on patient’s life. the aim of the present study, therefore,  was  to  assess  the  internal  validity  and  consistency,  test-retest  reliability,  and convergent validity of the persian version of the oxford shoulder instability score (osis). material ...

Abstract Tax is a financial charge imposed on individuals by state in different forms like direct tax paid directly by individuals, indirect tax collected by intermediaries and deposited to Government like sales tax. Taxation plays an important role in the process of revenue generation and to run various activities in an economy. The study empirically demonstrates various factors involved in di...

The association between affective instability and both family history of mood disorders and signs of neurodevelopmental disturbance was examined in a sample of 303 adults. Affective instability was measured using the borderline personality disorder "affective instability due to a marked reactivity of mood" diagnostic criterion as assessed dimensionally using the Personality Disorder Interview--...

PURPOSE The purpose of this study was to analyze results of arthroscopic stabilization with labral repair in a subset of patients with multidirectional shoulder instability and frank labral tear. METHODS A review of 13 patients (10 male and 3 female; mean age, 27.2 years) with multidirectional instability involving a labral tear of 270 degrees or greater requiring arthroscopic labral repair w...

The concept of developmental instability (DI) is a well-known indicator of environmental and genetic stress and is often investigated using various indices such as fluctuating asymmetry, directional asymmetry, antisymmetry and phenotypic variance. Investigations dealing with DI are using morphometric traits. The aim of this investigation is to present the novel concept of behavioural instabilit...

This paper proposes a methodology for mitigating the occurrence of cascading failure in stressed power systems. The methodology is essentially based on predicting voltage instability in the power system using a voltage stability index and then devising a corrective action in order to increase the voltage stability margin. The paper starts with a brief description of the cascading failure mechan...

OBJECTIVE This study analyzed the total symptom score, irritative and obstructive domains of IPSS questions regarding quality of life and the urodynamic diagnosis in 400 men with LUTS. MATERIALS AND METHODS Four hundred consecutive male patients were prospectively enrolled after being submitted to full urodynamic evaluation and IPSS. Obstructed and non-obstructed patients were compared regard...