603 research outputs found
Battery Aging and the Kinetic Battery Model
Batteries are omnipresent, and with the uprise of the electrical vehicles will their use will grow even more. However, the batteries can deliver their required power for a limited time span. They slowly degrade with every charge-discharge cycle. This degradation needs to be taken into account when considering the battery in long lasting applications. Some detailed battery models that describe the degradation exist. However, these are complex models that require detailed knowledge. These models are in general computationally intensive, which does not make them well suited to be used in a wider context. A model better suited for this is the Kinetic Battery Model. In this paper, we this model would change due to battery degradation, by the results of our experimental degradation analysis. In our analysis we see that the degradation takes place in two phases. After the first phase of slow degradation, the battery suddenly starts to degrade rapidly
7th Grade Lunar Robotics Curriculum
This Interdisciplinary Qualifying Project designed a curriculum to expose students to an engineering process, in 7th grade classrooms of Worcester Public Schools. It is set up to mimic the basic curriculum structure at Worcester Polytechnic Institute, culminating in a hands-on project to apply what the students have learned. The engineering challenge is framed in the context of a proposed lunar colony. The curriculum focuses on teaching students about lunar exploration and basic concepts of modern robotics
An investigation of service degradation in long-term human-robot interaction with a particular reference to recharge behaviour
Autonomous long-term operation of social robots has always been a challenge in Human robot-interaction. Social mobile robots acting as companions or assistants will need to operate over a long-term period of time (days, weeks or even months) to perform daily tasks and interact with users. Therefore they should be capable of operating with a great degree of autonomy and will require sustainable social intelligence. Social robots are fallible and have their own limitations with the service they provide. One of the most important limitations of mobile robots is power constraints and the need for frequent recharging. Social mobile robots generally draw power from batteries carried on the robot in order to operate various sensors, actuators and perform tasks. However, batteries have a limited power life and take a long time to recharge via a power source. While the recharge behaviour is active, which may impede human-robot interaction and lead to service degradation. This thesis raises some important issues related to recharge behaviour of social mobile robots which appear to have been overlooked in social robotics research. This work investigated service degradation in long-term interaction due to recharge behaviour of autonomous social mobile robots and proposes an approach to manage service degradation due to recharge. First we performed a long-term study to investigate the service degradation caused by the recharging behaviour of a social robot. Second we conducted a more focused social study which helped to understand user’s attitudes towards a mobile robot with respect to recharge activity. We explored a social strategy by modifying the robot’s verbal behaviour to manage service degradation during recharge. The results obtained from our social study indicates the use of verbal strategies (transparency, apology, politeness) made the robot more acceptable to the users during recharge. We believe that social mobile robots should behave in a socially intelligent manner while managing service degradation. We also provide some recommendations for social mobile robots to manage their recharge behaviour in this thesis
Переклад у галузі електроенергетики. Методичні рекомендації до практичних занять з дисципліни для студентів спеціальності 7.030507 «Переклад» напряму підготовки 035 «Філологія»
Методичні матеріали призначено для самостійної роботи студентів
спеціальності 7.030507 “Переклад” напряму підготовки 035 «Філологія» для
організації практичних занять із дисципліни «Переклад у галузі електроенергетики».
Рекомендації орієнтовано на вдосконалення навичок перекладу науково-технічних текстів
Переклад у галузі електроенергетики. Методичні рекомендації до практичних занять з дисципліни для студентів спеціальності 7.030507 «Переклад» напряму підготовки 035 «Філологія»
Методичні матеріали призначено для самостійної роботи студентів
спеціальності 7.030507 “Переклад” напряму підготовки 035 «Філологія» для
організації практичних занять із дисципліни «Переклад у галузі електроенергетики».
Рекомендації орієнтовано на вдосконалення навичок перекладу науково-технічних текстів
A portable, low-cost approach for photographing fluid preserved snake specimens- Recommendations with comments on optimizing specimen photography in Natural History collections
Access to preserved specimens in museum collections is one
of the key needs of those engaged in systematics research (e.g., Bi
et al. 2013; Rocha et al. 2014; McLean et al. 2016). Yet, sometimes
the constraints of research budgets and time prevent the optimal
use of this critical resource, resulting in project delays, incomplete information, or flawed scientific conclusions. With many
natural history museums now digitizing information related to
specimens in their collections, imaging of specimens is a logical
next step, and one of critical importance to make holdings available electronically to a broader audience (Baird 2010; Lister et al.
2011; Knight-Davis et al. 2015; Page et al. 2015).
A complete 2D image library of all specimens in a collection
may appear utopian at the moment, given the millions of specimens and lack of financial support for collections (e.g., Paknia
et al. 2015). However, outside of visiting each collection to study
individual specimens, or requesting loans of unique and valuable specimens, the lack of suitable specimen images means that
some data may simply remain unavailable to researchers who
cannot afford to obtain them. We wish to emphasize that the approach we advocate herein in no way negates the need to maintain and make accessible physical specimens in a collection. Although in rare cases where the lack of specimens is unavoidable
(e.g., Marshall and Evenhuis 2015; Pape et al. 2016), there is no replacement for examining a well-preserved specimen. Our method should be regarded as an ancillary technique, useful when it is
necessary to obtain preliminary data or when it is not possible to
examine the specimen in person, and for archival purposes
The Grizzly, September 6, 2007
The Car Share Revolution • Ursinus Initiates Film Fest • Facilities Makes Renovation Waves • Stopping the Stork: Emergency Contraception • A Look at The Rising Suns • Spotlight on Sustain UC • Book Review: What is What by Dave Eggers • Opinions: With Gonzales\u27 Resignation, Exodus Continues; Harry Potter and the Satanic Pre-Teens; Don\u27t Paint Over Our Freedom of Expression • Intramural Intervention • Field Hockey Flavor • Football Sets the Bar High with 28-0 Rout of LaSalle • Fight for the Tophttps://digitalcommons.ursinus.edu/grizzlynews/1741/thumbnail.jp
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