Charging ahead on the transition to electric vehicles with standard 120 v wall outlets

Electrification of transportation is needed soon and at significant scale to meet climate goals, but electric vehicle adoption has been slow and there has been little systematic analysis to show that today's electric vehicles meet the needs of drivers. We apply detailed physics-based models of electric vehicles with data on how drivers use their cars on a daily basis. We show that the energy storage limits of today's electric vehicles are outweighed by their high efficiency and the fact that driving in the United States seldom exceeds 100 km of daily travel. When accounting for these factors, we show that the normal daily travel of 85-89% of drivers in the United States can be satisfied with electric vehicles charging with standard 120 V wall outlets at home only. Further, we show that 77-79% of drivers on their normal daily driving will have over 60 km of buffer range for unexpected trips. We quantify the sensitivities to terrain, high ancillary power draw, and battery degradation and show that an extreme case with all trips on a 3% uphill grade still shows the daily travel of 70% of drivers being satisfied with electric vehicles. These findings show that today's electric vehicles can satisfy the daily driving needs of a significant majority of drivers using only 120 V wall outlets that are already the standard across the United States

Redesigning Power Strip With Case Study: Security Information Use Of Products

There are 212 cases of fire from 2015-2018 that have occurred by electricity failure in Bandung City, those failures happen because of power strip misused by users. The power strip has a certain maximum electric current input from electric devices, misused happen when the electric devices that connect have exceeded the electrical current of the power strip. This situation can cause a fire because of the power strip overheat. From 50 user 68% of users do not know the maximum electric current that can be delivered by a certain power strip and 32% of users knowing the maximum electric current but do not know how to use it for everyday use. These research aims are to redesign security of use certain power strip, focus on user habit and user interface information. Keywords Product Development, Power Strip, Security of Us

Lighting the Farm Home

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Lighting the Farmstead

PDF pages: 3

Smart Vehicle to Grid Interface Project: Electromobility Management System Architecture and Field Test Results

This paper presents and discusses the electromobility management system developed in the context of the SMARTV2G project, enabling the automatic control of plug-in electric vehicles' (PEVs') charging processes. The paper describes the architecture and the software/hardware components of the electromobility management system. The focus is put in particular on the implementation of a centralized demand side management control algorithm, which allows remote real time control of the charging stations in the field, according to preferences and constraints expressed by all the actors involved (in particular the distribution system operator and the PEV users). The results of the field tests are reported and discussed, highlighting critical issues raised from the field experience.Comment: To appear in IEEE International Electric Vehicle Conference (IEEE IEVC 2014

No. 14: The Impact of Proximity to Wet Markets and Supermarkets on Household Dietary Diversity in Nanjing City, China

Existing studies suggest that despite the proliferation of supermarkets, traditional wet markets have persisted in many countries and have been playing an important role in people’s daily food access. Yet, studies investigating the issue of food access and its influences on food security have mainly focused on food deserts and the proximity to supermarkets, with limited focus on wet markets and other food outlets. This study investigates the influence of the proximity to wet markets and supermarkets on urban household dietary diversity in Nanjing. Based on the data collected through a citywide survey in 2015 and the map data of wet markets and supermarkets, the Poisson regression model was deployed to examine the correlations between geographical proximity to supermarkets and wet markets and household dietary diversity. The results show that the coefficients for the distance to the nearest wet market are not statistically significant. Although the coefficients for the distance to nearest supermarket are statistically significant, they were too minor to be of practical importance. We argue, however, that the insignificant correlations reflect exactly the high physical accessibility to food outlets and the extensive spatially dense food supply network constituted by wet markets, supermarkets and small food stores in Nanjing. This is verified by the survey data that more than 90% of households purchased fresh food items within their neighbourhoods or in walking distance. In addition to the densely distributed food outlets, various other factors contributed to the non-significant influence of the distance to the nearest wet market and supermarket, including the many small food stores within or close to residential communities, the prevalence of three-generation extended households and high household income. This study highlights the importance of allowing mixed land use for food outlets with residential land and integrating wet markets into urban infrastructure planning

Feasibility Study of Electric Cars in Cold Regions

INE/AUTC 11.1

High-throughput continuous dielectrophoretic separation of neural stem cells.

We created an integrated microfluidic cell separation system that incorporates hydrophoresis and dielectrophoresis modules to facilitate high-throughput continuous cell separation. The hydrophoresis module consists of a serpentine channel with ridges and trenches to generate a diverging fluid flow that focuses cells into two streams along the channel edges. The dielectrophoresis module is composed of a chevron-shaped electrode array. Separation in the dielectrophoresis module is driven by inherent cell electrophysiological properties and does not require cell-type-specific labels. The chevron shape of the electrode array couples with fluid flow in the channel to enable continuous sorting of cells to increase throughput. We tested the new system with mouse neural stem cells since their electrophysiological properties reflect their differentiation capacity (e.g., whether they will differentiate into astrocytes or neurons). The goal of our experiments was to enrich astrocyte-biased cells. Sorting parameters were optimized for each batch of neural stem cells to ensure effective and consistent separations. The continuous sorting design of the device significantly improved sorting throughput and reproducibility. Sorting yielded two cell fractions, and we found that astrocyte-biased cells were enriched in one fraction and depleted from the other. This is an advantage of the new continuous sorting device over traditional dielectrophoresis-based sorting platforms that target a subset of cells for enrichment but do not provide a corresponding depleted population. The new microfluidic dielectrophoresis cell separation system improves label-free cell sorting by increasing throughput and delivering enriched and depleted cell subpopulations in a single sort

An Exploration of Female Sexuality, Class Status, and Art in Hardy’s Short Stories

In this paper, I examine Hardy’s treatment of female sexuality as mediated by art in two short stories: “The Fiddler of the Reels” and “An Imaginative Woman.” Given Hardy’s role as an artist, his noted compassion for women, and his interest in Victorian attitudes toward sexuality, my analysis of these topics in his short stories is particularly relevant. Hardy’s investment in class issues is also pertinent, as I consider how Hardy uses his heroines’ relationships with art to underline the distinct disadvantages of lower-class women. While Ella, the middle-class heroine of “An Imaginative Woman,” uses poetry to channel stagnant sensual energies as a relatively empowered subject, music objectifies and overpowers the lower-class Car’line of “The Fiddler of the Reels.” In my analysis, I compare Ella and Car’line’s interactions with art, noting art’s potential to serve as an emotional outlet, a source of pleasure, or an overwhelming and dangerous force. I argue that middle-class women possess a clear advantage: their access to Victorian discourses that acknowledge female sexuality and their encouragement to engage the creative arts as active agents afford them a level of power. Ella thus uses art as a tool to express her desires and to obtain a degree of sexual satisfaction. On the contrary, the rural, working-class Car’line is completely vulnerable to Wat’s fiddle, and its power ultimately causes her emotional and physical deterioration. In my comparison of female sexuality and artistic expression in “The Fiddler of the Reels” and “An Imaginative Woman, I elucidate Hardy’s efforts to reveal the distinct disadvantages of lower-class women in Victorian society