391 research outputs found
Secure integration of electric vehicles with the power grid
Get PDFA wide variety of distributed energy resources (DERs) such as pluggable electric vehicles (EVs), solar arrays, smart buildings, etc. are now being connected to the power grid. Malicious adversaries can use these as entry mechanisms to gain access to the grid with the intention of creating instability in the system. This work focuses on secure integration of DERs with the power grid. To this end, we propose techniques to detect malicious activity when either the DERs or the communication channels between the DERs and the smart grid components are compromised. We propose a cyber-physical anomaly detection engine to ensure that critical grid components remain secure, and hence, safe. Specifically, we have focused on the vehicle-to-grid (V2G) system. In this system, aggregators are the critical components through which DERs such as EVs are connected to the grid. We have developed a prototype anomaly detection engine for aggregators that manage/communicate with the EVs. Since the V2G system is time-sensitive, the anomaly detection engine also monitors the timing requirements of the system by checking the frequency constraints on messages at the aggregator apart from monitoring the cyber and physical data constraints to ensure safety of the aggregator.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-05-01The student, Chaitra Niddodi, accepted the attached license on 2018-04-24 at 17:28.The student, Chaitra Niddodi, submitted this Thesis for approval on 2018-04-24 at 17:33.This Thesis was approved for publication on 2018-04-25 at 12:48.DSpace SAF Submission Ingestion Package generated from Vireo submission #12462 on 2018-08-31 at 17:30:23Made available in DSpace on 2018-09-04T20:47:30Z (GMT). No. of bitstreams: 2
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Previous issue date: 2018-04-25Embargo set by: Seth Robbins for item 107457
Lift date: 2020-09-04T20:47:38Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 107457
Lift date: 2020-09-04T20:50:11Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemLimited Restriction Lifted for Item 107457 on 2020-09-05T09:15:20Z
Quercetin as a Modulant Of Oxidative Stress Associated with Diabetic Neuropathy in Streptozotocin Rat Model
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Job motivation in high-tech knowledge work- the unintended detrimental role of management
Get PDFTitle: Job motivation in high-tech knowledge work- the unintended detrimental role of management Seminar Date: 4th June 2015 Course: FEKH49 Author: Chaitra Harish Bhat Supervisor: Sverre Spoelstra Key Words: Knowledge Worker, Intrinsic Motivation, Extrinsic Motivation, Priority Task, Recognition. Purpose: The purpose of this research is to critically examine the role of intrinsic motivation in knowledge work. It intends to investigate the managerial attempt to motivate knowledge workers and examines the role of the management from the knowledge workers’ perspective. Methodology: This research has taken the interpretive viewpoint. It is a qualitative study with an abductive approach. Eight semi-structured interviews have been conducted and analyzed. Theoretical Perspectives: The theoretical framework is focused mainly on the intrinsic and extrinsic motivation in the context of knowledge work. The knowledge worker’s work ambiguity is presented. And the equity theory of motivation is and analyzed as to how it affects motivation in knowledge work. Empirical foundation: The empirical foundation of this research consists of eight semi-structured interviews conducted in a knowledge intensive firm, Motiv AB. Conclusion: This research shows that even though intrinsic motivation is important, the role of extrinsic motivation is also found to be vital in knowledge workers. In this context, the role of the management can also be detrimental at times (though unintentional) in affecting the knowledge worker motivation
Storage Characteristics of Minor Millets
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Current Practices and Future Trends in Packaging of Food Grains
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Using static objects for passive communication with sunlight
No full textThe idea of having a smart environment to automate day to day tasks appeals to us all. To enable this, we need objects with embedded electronics to communicate with each other in a network known as the Internet of Things (IoT). The IoT communication infrastructure is built on top of existing Radio Frequency (RF) technologies such as Bluetooth Low Energy (BLE), WiFi, and cellular protocols. The RF technology is bandlimited and power hungry, making it unfeasible to support the growing demand of IoT networks. The number of IoT devices in the year 2020 is expected to be around 20 billion, making it essential to explore other areas of sustainable communication technology. Visible light communication (VLC) in the optical domain is being explored to meet the surge in connected devices and to enable sustainability in the energy consumed. The idea behind a VLC system is to toggle a Light Emitting Diode (LED) at high speed to transmit information which ensures that users are not subjected to visual interruptions. Even sunlight - the biggest source of illumination - can be used to transmit information. However, it is not possible to toggle the sun like LEDs. Hence, the objective of this thesis is to use sunlight to setup a green communication channel. In the 1800s, sunlight was used to communicate over long distances by using mirrors to reflect light to send signals. Taking inspiration from this method, I propose using smart materials to toggle sunlight and use it for wireless communication. My aim in this thesis is to analyze the behavior of smart materials, develop a modulation scheme suitable to send information using sunlight, and evaluate the system's performance.Electrical Engineering | Embedded System
Evaluation of CPT - based Correlation of Fines Content and Soil Behaviour Index for Groningen Soils
No full textEarthquakes in the past few decades has questioned the safety of people and infrastructure in Groningen region and its surroundings areas. The excessive gas extraction from the subsurface has led to human-induced earthquakes in this region. Liquefaction is a phenomenon that occurs as a result of earthquakes, reducing the soil shear strength to zero and the soil in turn behaving like a liquid. It has been observed in other parts of the world in case of natural and human-induced earthquakes alike. Thus, it is necessary to identify the liquefaction prone regions and taking steps towards creating better designs, equipped to handle earthquake loads along with precautionary measures, to save existing building and infrastructure. In order to do so, it is important to examine the existing the methods, various parameters and factors that influence the liquefaction potential analysis. In this project, the different factors that could influence Liquefaction Potential Analysis are studied based on the existing CPT-based correlations between Fines Content (FC) and Soil Behavior Index(IC). The previously proposed correlation by Boulanger and Idriss (2014) is examined for Groningen Soils to evaluate if it needs any modifications. Depth of the sample, Distance between CPT and borehole, Grain Size Distribution and Geology of the sample are main factors considered for the study. Each of these factors are analysed by collecting laboratory samples of Grain size analysis test from Groningen region. The strength of the correlation between FC and IC is evaluated based on the factors. This study would be beneficial for geo-technical software developers, construction and design engineers who highly depend on correlations and it gives insight of how different the onsite scenario can be from the predicted values using correlations. It contributes to the future research on creating a data base of the all samples in the Netherlands, to indicate high risk regions. It also helps in answering if IC is a good parameter to consider while evaluating liquefaction potential for Groningen Soils.Geo-Engineerin
Mother′s knowledge about pre-school child′s oral health
No full textChildren under the age of 5 years generally spend most of their time with their parents and guardians, especially mothers, even when they attend pre-schools or nurseries. It has been found that young children′s oral health maintenance and outcomes are influenced by their parent′s knowledge and beliefs. This study was done to assess the mother′s knowledge about the oral health of their pre-school children in Moradabad, India. Mothers of children aged 1-4 years, attending the hospital for vaccination or regular checkups in the pediatric division of government hospitals, were invited to participate in the study. A 20-item questionnaire covering socio-demographic characteristics, dietary practices, oral hygiene practices and importance of deciduous teeth, was distributed to their mothers, during their visit to the hospital. Responses of the mothers were recorded on a Likert Scale. The sample comprised 406 mothers, with the mean age of children being 3.8 years. Three hundred (73.8%) mothers had a good knowledge about diet and dietary practices, while only 110 (27.1%) and 103 (25.4%) mothers were found to have a good knowledge about the importance of oral hygiene practices and importance of deciduous teeth, respectively. Mothers with higher educational qualification and information gained through dentist had a better knowledge about child′s oral health. Oral hygiene habits and dietary habits are established during pre-school days and the parents, especially mothers, function as role models for their children
DSLA 2023: Facing the dangers of data illiteracy
No full textThe Data Science and Literacy Act (DSLA) of 2023 aims to boost data literacy and data science education across the USA. Gregg M. Gascon, Katherine K. Wallman, Sridhar Ravula, Joseph Cappelleri, Julia Lee, Kristian Lum, Chaitra H. Nagaraja, Sudeshna Paul, Dooti Roy and Edward Wu explain why this opportunity demands our attentio
An Innovative Information System for College Management
No full textThis is an information system application called Electronic-College Management and Information System (ECMIS) which is useful for staff, faculty, and principal to deal with all information about student details, academic related reports, college details, course details, batch details and other related details. This is user friendly and easy to use system. All the important data are stored in the database and it avoids any miscalculation. It replaces the old and traditional file (paperwork) storing process; it even provides editing facilities for data which would be tedious through paperwork. It eliminates manual work (Manual system does not mean that we are working with pen and paper, it also includes working on spreadsheets and other simple software's). With this we can retrieve student‘s information instantly. The major benefit of this web portal is to store the student‘s information in one place and can be accessed easily. This is a software application which is responsive in nature
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