This paper presents the measurements and analytical results regarding important characteristics of wireless propagation for vehicular ad-hoc networks in motorway environments, including Doppler Effect, Free Space Signal propagation, path loss and system operating margin. In this work, we employ IEEE 802.11b wireless cards for inter-vehicular communication to analyze large and small-scale propag...

Loadability limits are critical points of particular interest in voltage stability assessment, indicating how much a system can be stressed from a given state before reaching instability. Thus estimating the loadability margin of a power system is essential in the real time voltage stability assessment. A new methodology is developed based on Support Vector Regression (SVR) which is the most co...

Mobile manipulators operating in field environments will be required to apply large forces, or manipulate large loads, and to perform such tasks on uneven terrain which may cause the system to approach, or reach, a dangerous tipover instability. To avoid tipover in an automatic system, or to provide a human operator with an indication of proximity to tipover, it is necessary to define a measure...

National university hospitals are not different from private hospitals as the public role played by the former is not clearly defined in Korea. They have to compete with other general hospitals in the same region [1]. The introduction of the nationwide Korea Express Train has increased accessibility to medical institutions in the metropolitan area since 2003. This has resulted in an increased n...

This paper explores the influence of the ringing phenomena on the sustain waveform for AC PDP. We also announce a new circuit to improve the prior sustain circuit by reducing the ringing phenomena and thus get better performance such as increasing the operating margin, the luminous efficiency, the contrast ratio and decreasing the power dissipation.

This study attempts to assess the financial performance of a supply chain company. In order achieve objective, this has analysed ratios applying DuPont analysis, which been demonstrated with tables show company's trend for five years (2018-2022). analysis is based on Return Equity (ROE) and Assets (ROA). The ROE disaggregates into three components: • Net Profit Margin, Total Asset Turnover, Mul...

UNLABELLED We previously studied hospitals in the United States of America that are losing money despite limiting the hours that operating room (OR) staff are available to care for patients undergoing elective surgery. These hospitals routinely keep utilization relatively high to maximize revenue. We tested, using discrete-event computer simulation, whether increasing patient volume while being...

The objective of this study was to use audited hospital financial statements to identify predictors of payer mix and financial performance in safety net hospitals prior to the Affordable Care Act. We analyzed the 2010 financial statements of 98 large, urban safety net hospital systems in 34 states, supplemented with data on population demographics, hospital features, and state policies. We used...

Part II of this paper elaborates on the unique capability of the proposed power flow analysis framework to obtain the true solution corresponding to the stable operating point of a network. It explains the significance of obtaining the true solution for an accurate assessment of the voltage collapse margin. This feature distinguishes the framework from all iterative and non-iterative heuristic ...

Mobile manipulators operating in eld environments will be required to perform tasks on uneven terrain which may cause the system to approach, or achieve, a dangerous tipover instability. To avoid tipover in an automatic system, or to provide a human operator with an indication of proximity to tipover, it is necessary to de ne a measure of stability margin. This work presents a new tipover stabi...