Power system state estimation is a process to find the bus voltage magnitudes and phase angles at every bus based on a given measurement set. The state estimation convergency is related to the sufficiency of the measurement set. Observability analysis actually tests this kind of problem and guarantees the state estimation accuracy. A new and useful algorithm is proposed and applied in this pape...

Through the study of standardized practices (walking tours, bus-tours) and devices (maps, guidebooks) for touring cities, this dissertation shows (1) how the city of Berlin is transformed into a virtual object, namely, an urban destination, (2) how such transformation is enabled not simply by tourist movement in space and being away from ‚home‘, but by tourist communication on the city, and (3)...

in this article, a multi-objective function for placement of distributed generation (dg) and capacitors with thetap setting of under load tap changer (ultc) transformer is introduced. most of the recent articles have paidless attention to dg, capacitor placement and ultc effects in the distribution network simultaneously. insimulations, a comparison between different modes was carried out with,...

The quality of pedestrian routes of access to a public transport system (PTS) is an important aspect for the choice of transport mode, which can be evaluated using some indicators such as accessibility, comfort, frequency, etc. The policies for urban sustainable mobility must reflect the design and management of mass transit systems, but also the judgment of users in terms of quality and percep...

The purpose of this paper is to provide an expected cost comparison for operating a transit-bus fleet on three different alternative fuels-biodiesel, compressed natural gas (CNG), and methanol. Petroleum diesel is the base fuel. Infrastructure, refueling, and maintenance costs are all part of running an urban transit bus. Additional expenditures would be needed to change fuel storage and delive...

Nowadays, backplane bus-based multiprocessor systems often utilize the standard network protocol such as TCP/IP for communication between processors on the backplane bus. In such systems, it is common for the backplane bus to emulate the standard MAC protocols such as CSMA/CD. This paper aims to analyze the performance of the MAC emulation-based backplane network by constructing queueing models...

Reliability of public transport systems has been considered critically important by public transport users, operators and the government. Lack of reliability in public transport results in uncertainty and delays aggravating anxiety and discomfort for the passengers and increases costs due to lost mileage and lower fleet utilisation for the operators. The government emphasises a reliable bus-ser...