scholarly journals Hierarchical Brokering with Feedback Control Framework in Mobile Device-Centric Clouds

2016 ◽  
Vol 2016 ◽  
pp. 1-11
Author(s):  
Chao-Lieh Chen ◽  
Chao-Chun Chen ◽  
Chun-Ting Chen
Keyword(s):  
Feedback Control ◽  
Mobile Device ◽  
Feasible Solution ◽  
Performance Model ◽  
Energy Aware ◽  
Web Based ◽  
Development Platform ◽  
Lower Tier ◽  
Control Framework ◽  
Control And Management

We propose a hierarchical brokering architecture (HiBA) and Mobile Multicloud Networking (MMCN) feedback control framework for mobile device-centric cloud (MDC2) computing. Exploiting the MMCN framework and RESTful web-based interconnection, each tier broker probes resource state of its federation for control and management. Real-time and seamless services were developed. Case studies including intrafederation energy-aware balancing based on fuzzy feedback control and higher tier load balancing are further demonstrated to show how HiBA with MMCN relieves the embedding of algorithms when developing services. Theoretical performance model and real-world experiments both show that an MDC2 based on HiBA features better quality in terms of resource availability and network latency if it federates devices with enough resources distributed in lower tier hierarchy. The proposed HiBA realizes a development platform for MDC2 computing which is a feasible solution to User-Centric Networks (UCNs).

Feedback control framework for car-like robots using the unicycle controllers

Robotica ◽  
2011 ◽  
Vol 30 (4) ◽  
pp. 517-535 ◽  
Author(s):  
Maciej Michałek ◽  
Krzysztof Kozłowski
Keyword(s):  
Stability Analysis ◽  
Feedback Control ◽  
Closed Loop ◽  
Path Following ◽  
Rear Wheel ◽  
Front Wheel ◽  
Steering Angle ◽  
Formal Stability ◽  
Control Framework ◽  
Error Dynamics

SUMMARYThe paper introduces a novel general feedback control framework, which allows applying the motion controllers originally dedicated for the unicycle model to the motion task realization for the car-like kinematics. The concept is formulated for two practically meaningful motorizations: with a front-wheel driven and with a rear-wheel driven. All the three possible steering angle domains for car-like robots—limited and unlimited ones—are treated. Description of the method is complemented by the formal stability analysis of the closed-loop error dynamics. The effectiveness of the method and its limitations have been illustrated by numerous simulations conducted for the three main control tasks, namely, for trajectory tracking, path following, and set-point regulation.

Use of Mobile Device Applications In Canadian Dietetic Practice

2014 ◽  
Vol 75 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Jessica R.L. Lieffers ◽  
Vivienne A. Vance ◽  
Rhona M. Hanning
Keyword(s):  
Mobile Device ◽  
Response Rate ◽  
Access To Information ◽  
Personal Factors ◽  
Cross Sectional ◽  
Web Based ◽  
Content Quality ◽  
Information Tools ◽  
Device Applications ◽  
Workplace Factors

Purpose A cross-sectional web-based survey of dietitians was used to explore topics related to mobile devices and their applications (apps) in Canadian dietetic practice. Methods A survey was drafted, posted on SurveyMonkey, and pretested with dietitians and dietetic interns. Dietitians of Canada (DC), a supporter of this work, promoted the survey to members through its monthly electronic newsletters from January 2012 to April 2012. Results Of 139 dietitians who answered some survey questions, 118 finished the survey; this represents a response rate of approximately 3%. Overall, 57.3% of respondents reported app use in practice, and 54.2% had a client ask about or use a nutrition/food app. About 40.5% of respondents had recommended nutrition/food apps to clients. Respondents were enthusiastic about apps, but many described challenges with use. From the survey data, three themes emerged that can affect dietitians’ use of apps and whether they recommend apps to clients: mobile device and app factors (access to information/ tools, content quality, usability, accessibility/compatibility, and cost), personal factors (knowledge, interest, suitability, and willingness/ability to pay), and workplace factors. Conclusions Apps are now infiltrating dietetic practice. Several factors can affect dietitians’ use of apps and whether they recommend them to clients. These findings will help guide future development and use of apps in practice.

uRun

2013 ◽  
pp. 314-334
Author(s):  
Alexandra Chapko ◽  
Andreas Emrich ◽  
Stephan Flake ◽  
Frank Golatowski ◽  
Marc Gräßle ◽  
...  
Keyword(s):  
Mobile Health ◽  
Mobile Device ◽  
Web Applications ◽  
Mobile Services ◽  
End Users ◽  
Mobile Service ◽  
Web Based ◽  
Access Device ◽  
Service Creation ◽  
Health And Fitness

This article presents a framework which enables end users to create small, sharply focused mobile services directly on a mobile device. By this, end users are no longer only consumers of mobile services; they also become producers and providers of mobile services. The domain of mobile health and fitness applications has been chosen to demonstrate the feasibility of the approach. The article presents the underlying platform for easy creation of mobile services and describes the implementation of a Web-based editor for easy mobile service creation as well as our solution to access device capabilities out of Web applications.

Content Adaptation for Heterogeneous Mobile Devices

2011 ◽  
pp. 673-687
Author(s):  
Robert Schmohl ◽  
Uwe Baumgarten ◽  
Lars Köthner
Keyword(s):  
Mobile Devices ◽  
Mobile Device ◽  
Communication Channels ◽  
Content Delivery ◽  
Mobile Services ◽  
Content Adaptation ◽  
Heterogeneous Environment ◽  
Web Based ◽  
Adaptation Procedure ◽  
Content Provision

Recent advances in mobile computing have spawned a very heterogeneous environment of mobile devices, which is reflected by the presence of the devices’ different capabilities. This chapter focuses on handling this device heterogeneity in the context of content adaptation of mobile services so that generic content can be provided to any device in the heterogeneity spectrum. We present an approach that enables mobile services to adapt its content provision to a mobile device by considering the device’s content provision capabilities. Those capabilities encompass both the communication channels for content delivery and the capabilities to present content to the user. Our approach is designed as a service platform that implements a content adaptation procedure for Web-based mobile services by utilizing device capability databases and generic page transformation. This approach enables mobile devices to visualize any generic content device specifically on their integrated browsers.

Perceptions and Reality: Revealing the BIM Gap Between the UK and Turkey

2013 ◽  
Vol 2 (3) ◽  
pp. 1-15 ◽  
Author(s):  
Volkan Ezcan ◽  
Jack S. Goulding ◽  
Murat Kuruoglu ◽  
Farzad Pour Rahimian
Keyword(s):  
Construction Industry ◽  
Complex Nature ◽  
Building Information Modelling ◽  
Web Based ◽  
Related Information ◽  
Building Information ◽  
The Uk ◽  
Control And Management ◽  
Intensive Control

The complex nature of the construction process needs an intensive control and management mechanism in order to manage and process information flow. Current deficiencies in managing construction related information have been highlighted by a range of industry reports, the consensus of which has reinforced the lack of performance in the construction industry. Given this, recent research on the role of Building Information Modelling (BIM) has been proffered as a potential solution for covering these deficiencies, along with improving competitive advantage. Although limited research has concentrated on measuring BIM awareness and use, findings have been somewhat parochial and non-specific. This paper addresses this gap by concentrating on two markets: Turkey and the UK. The aim of the paper is to determine the BIM gap in terms of awareness and use, in order to form a basis for the development of future adoption strategies. A web-based questionnaire was used mirror the National Building Specification (NBS) survey (previously undertaken) in order to capture data from a new context (Turkey). The descriptive analyses of the findings and a comparison of the two countries are presented. The findings identify significant differences in BIM awareness the influence of which could provide insight for both mature and emerging markets.

A feedback control framework for safe and economically-optimal operation of nonlinear processes

AIChE Journal ◽  
2016 ◽  
Vol 62 (7) ◽  
pp. 2391-2409 ◽  
Author(s):  
Fahad Albalawi ◽  
Anas Alanqar ◽  
Helen Durand ◽  
Panagiotis D. Christofides
Keyword(s):  
Feedback Control ◽  
Optimal Operation ◽  
Nonlinear Processes ◽  
Control Framework

scholarly journals Medical Student Perceptions of Learner-Initiated Feedback Using a Mobile Web Application

2017 ◽  
Vol 4 ◽  
pp. 238212051774638 ◽  
Author(s):  
Amy C Robertson ◽  
Leslie C Fowler
Keyword(s):  
Student Perceptions ◽  
Mobile Device ◽  
Clinical Education ◽  
Web Application ◽  
Clinical Performance ◽  
Web Based ◽  
Mobile Web ◽  
Group Data ◽  
Timely Feedback ◽  
Focus Group Data

Feedback, especially timely, specific, and actionable feedback, frequently does not occur. Efforts to better understand methods to improve the effectiveness of feedback are an important area of educational research. This study represents preliminary work as part of a plan to investigate the perceptions of a student-driven system to request feedback from faculty using a mobile device and Web-based application. We hypothesize that medical students will perceive learner-initiated, timely feedback to be an essential component of clinical education. Furthermore, we predict that students will recognize the use of a mobile device and Web application to be an advantageous and effective method when requesting feedback from supervising physicians. Focus group data from 18 students enrolled in a 4-week anesthesia clerkship revealed the following themes: (1) students often have to solicit feedback, (2) timely feedback is perceived as being advantageous, (3) feedback from faculty is perceived to be more effective, (4) requesting feedback from faculty physicians poses challenges, (5) the decision to request feedback may be influenced by the student’s clinical performance, and (6) using a mobile device and Web application may not guarantee timely feedback. Students perceived using a mobile Web-based application to initiate feedback from supervising physicians to be a valuable method of assessment. However, challenges and barriers were identified.

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