Transmission Expansion Planning Considering Energy Storage

In electricity transmission networks, energy storage systems (ESS) provide a means of upgrade deferral by smoothing supply and matching demand. We develop a mixed integer programming (MIP) extension to the transmission network expansion planning (TEP) problem that considers the installation and operation of ESS as well as additional circuits. The model is demonstrated on the well known Garver's 6-bus and IEEE 25-bus test circuits for two 24 hour operating scenarios; a short peak, and a long peak. We show optimal location and capacity of storage is sensitive not only to cost, but also variability of demand in the network

Coronavirus in America; Have Partisan Politics Permeated the Pandemic?

What level of influence do the actions and rhetoric of governors have on constituents\u27 response to vaccination? In this paper, I analyze how the rhetoric of governors and their efforts to combat the coronavirus pandemic has influenced the progression of coronavirus vaccination amongst their constituents. If governors take significant statewide steps and mitigation measures to combat coronavirus and vigorously enforce and advocate for vaccines, those who are of the same political party will become more opinionated in favor of vaccination, and those of opposite parties will become more resistant to vaccination

Brief Mindfulness Meditation Improves Mental State Attribution and Empathizing

Peer reviewedPublisher PD

Structural and thermal response of 30 cm diameter ion thruster optics

Tabular and graphical data are presented which are intended for use in calibrating and validating structural and thermal models of ion thruster optics. A 30 cm diameter, two electrode, mercury ion thruster was operated using two different electrode assembly designs. With no beam extraction, the transient and steady state temperature profiles and center electrode gaps were measured for three discharge powers. The data showed that the electrode mount design had little effect on the temperatures, but significantly impacted the motion of the electrode center. Equilibrium electrode gaps increased with one design and decreased with the other. Equilibrium displacements in excess of 0.5 mm and gap changes of 0.08 mm were measured at 450 W discharge power. Variations in equilibrium gaps were also found among assemblies of the same design. The presented data illustrate the necessity for high fidelity ion optics models and development of experimental techniques to allow their validation

The Bali of Anthropology and the Anthropology of Bali

falseLanham, Boulder, New York, Londo

Contributions in the field of palaeopalynology at the Bernard Price Institute, past, present and future

Main articleA brief chronological summary of the palynological research carried out by students and past members of the staff at the Bernard Price Institute for Palaeontological Research is presented. The contribution that each of these studies has made to the understanding of stratigraphic relationships in the southern African region is highlighted. A correlation chart of palynological biozones documented from South African localities is presented (Table 1).Non