bluuebunny/crossref_metadata_2025 huggingface dataset:
Value Co-Creation in Faculty-Led Study Abroad Programs
Authors: Tuzovic Sven
Published: August 2016

Study Abroad (SA) education has become an increasingly important educational program for teaching global learning and intercultural competence, maturity, and sensitivity of students. Since the price tag attached to SA programs can be daunting, the question arises how value can be defined and, more importantly, how value is created. Some scholars have used the principles of service-dominant logic proposed by Vargo and Lusch (2004) to suggest that students should be engaged as an active co-creator of the university experience. Utilizing a qualitative research approach this chapter proposes that the value process of SA programs consists of three stages: (1) value proposition and potential; (2) resource integration and value co-creation; and (3) value realization evaluation. This study identifies key roles of the participants and their operand and operant resources that guide the value co-creation process. The framework provides faculty with a way to understand, adapt, and manage resource integration and influence students' SA value realization processes.
Language Learners' Social Interaction during Study Abroad
Authors: Campbell Rikki
Published: August 2016

There is a common belief that one of the best methods for learning a foreign or second language is to develop social relationships with native speakers and to communicate with them using that language. In order to increase such interactional opportunities, participation in study abroad programs where the target language is spoken is frequently recommended. However, language learners often report disappointment in their degree of interaction and friendship development with native speakers while abroad. With a focus on learners of Japanese, the study reported in this chapter examines the contexts in which study abroad students in Japan find opportunities to interact and establish friendships with native Japanese speakers, and discusses the participants' satisfaction with and benefits of such interaction and friendships. The results draw upon 36 questionnaire responses, as well as in-depth interviews with four focal informants, all of who experienced a study abroad in Japan between 2010-2013.
From Expository Blog to Engaged E-Portfolio
Authors: Darling Jill
Published: August 2016

This chapter illustrates a student-centered pedagogy in process through the example of an electronic portfolio final assignment in two First-Year Writing courses. The philosophy behind the assignment is based in cultural studies, constructivist pedagogy, and multimodal studies. If students learn by doing, they also learn about culture through critique, public writing, and reflection. Students can thus become engaged as writers and citizens through constructing web-based texts focused on social issues and written from personal perspectives.
Socializing Composition
Authors: Hayes Ken
Published: August 2016

The goal of this chapter is to act as a primer for scholars looking start working with social networking site (SNS) in the composition classroom. This chapter focuses on research regarding aspects of SNS use in and out of the classroom, such as identity, rhetorical/audience awareness, civic engagement, and SNS pedagogy. This chapter also relies on current discourse, as well as the author's own SNS experiences, to share lists of best practices and SNS activities in the composition classroom. This chapter ends with a call for future research that includes continued efforts to interact more directly with students to learn with them about their use and views of SNS in and out of the composition classroom.
Creating Meaning for Millennials
Authors: Trauth Erin
Published: August 2016

Despite the Millennial's growing attraction to social media technologies, composition instruction has yet to fully explore the potential of these technologies as resources rather than hindrances to instruction. As instructors of composition, then, it seems logical to apply what we know about these dominant rhetorical and pedagogical theories of the 20th century to the prospective use of social media to better our own pedagogies. Employing the ideas of Mikhail Bakhtin's social construction of knowledge and Louise Rosenblatt's student-centered pedagogy, the author explores the many complementary uses of social media technologies such as Facebook and Twitter in the composition classroom in order to generate a new model of instruction – one which challenges traditional, unilateral exchanges of knowledge and centers on a dialogical, student-centered model of composition instruction.
The Blogging Method
Authors: Fiore Christine
Published: August 2016

Why are there more than 450 million blogs on the Internet? The answer is simple: blogging is easy, free, and fun. People have opinions they want to share with the world, and blogging is a form of social media that best allows them to do so at length. This chapter examines how blogging can be used as a way to enhance instruction on expository writing. As with any form of social media, using blogs as a teaching tool can be a daunting proposition. Therefore, this chapter provides its readers practical instruction and ideas about how to integrate blogging practices into a composition classroom. Because blogging closely mirrors traditional writing practices, this chapter invites readers to consider blogging as a 21st century model for a 20th century practice.
Using Wikipedia to Teach Written Health Communication
Authors: Callens Melissa Vosen
Published: August 2016

Unlike first-year writing courses, upper-division writing courses often require students to engage in discipline specific writing. In the author's upper-division course, Writing in the Health Professions, students examine health literacy as it pertains to both oral and written patient-provider communication. Students edit and expand a Wikipedia article for the final course assignment. The advantages of this assignment are threefold. First, students write for an authentic audience, decreasing student apathy. Second, students engage civically, improving health information accessed by millions of people across the world. Finally, students improve content of existing articles and broaden the scope of new articles written, leading to more diverse content and perspectives. In this chapter, the author discusses the above assignment, providing descriptions of scaffolding activities. Potential drawbacks of using Wikipedia to teach students how to write using plain language is discussed, in addition to strategies that might limit these difficulties.
Co-Operation between the Public Administration and Non-Profit Organisations as a Condition of the Development of Public Entrepreneurship
Authors: Wodecka-Hyjek Angelika
Published: August 2016

The chapter presents the models of co-operation between the public administration and non-profit organisations with regard to performing public services, supporting civil initiatives, building social dialogue and shaping civil society in the context of the development of public entrepreneurship. The issues presented at the beginning related to the separation of entrepreneurship in the public sector; emphasis was put on the need for co-operation between the public sector and non-profit organisations as a condition of the development of public entrepreneurship. Then the models of co-operation of the public sector and non-profit organisations in the UK, Canada, Estonia and Poland were characterised. In consequence of the conducted discourse, postulates and recommendations were presented with regard to building efficient and effective co-operation between the public administration and the sector of non-profit organisations and its role in the development of public entrepreneurship.
How to Measure Performance in Cooperatives?
Authors: Giacomini Davide , Chiaf Elisa , Mazzoleni Mario Benito
Published: August 2016

The cooperatives produce around 10% of Italian GDP. They should face two aims: the respect of the cooperative principles and their pursuit in line with the economic effectiveness principle. Cooperatives operate on the principles of the International Cooperative Alliance: one member-one vote, free and voluntary membership, and limited remuneration of the underwritten capital. In order to represent the social and the economic impact of the cooperatives actions, the evaluations of the outcome produced should bear in mind both dimensions above-mentioned. Unfortunately, no single performance measure is appropriate for all the purposes. The aim of the paper is to hypothesize a comprehensive evaluation model that allows to estimate the cooperative excellence. The emerging model will be made up of two parts representing the social and the economic excellence in turn divided in “internal” and “external” variables depending on the stakeholder considered. In the second part of the paper, the model will be tested on eight Italian cooperatives.
Ranking Turkish Universities Based on Performance Evaluation via DEMATEL-AHP Approach
Authors: Gökgöz Fazıl , Atmaca Mete Emin
Published: August 2016

Universities are indispensable and crucial part of academic life and education system. They grant academic degree in a variety of subjects and provide undergraduate, graduate and postgraduate educations. They carry institutional memory based on experience and knowledge developed by many years. They are the centers of scientific world. In addition, they are one of the important decision point in the human life to shape their future life. In the light of this mission, they are in continuous changing process to provide high level of standards, in science and technology, and better environment for education of students. Therefore ranking of universities have gained a considerable importance among academia, students, parents and industry. There are so many web sites that are publishing the results of their independent evaluations based on different objective and subjective criteria. The aim of this chapter is to provide a background to improve criteria using in ranking methodologies with the help of integrated DEMATEL-AHP methodology by taking into account ranking of Turkish Universities.
Eight-Point Project
Authors: Csillag Sara , Balázs Eva , Kocsis Mihály , Udvarhelyi Tessza , Vago Iren
Published: August 2016

In this chapter the authors report the outcomes of a year-long action research project in which engaged researchers of different professional fields tried to support non-profit institutions and their staff to develop the Hungarian care system for autistic people, re-instill the above-mentioned courage of individuals and teams (composed of psychologists, social workers, special education teachers and parents) and to invent and adopt new processes and procedures. Coordinated and supported by a central research team, 27 non-profit care institutions in the fields of education, employment, housing and social services, healthcare and crisis intervention from all over Hungary led their own action research.
Personalized Approach in Nanomedicine
Authors: Vlasova Maria , Smirin Boris V.
Published: August 2016

This chapter characterizes need for new patient-specific approaches in medicine. The authors here illustrate role of nanomedicine and particularly nanotheranostics, combining diagnostic and therapeutic functions, in the paradigm of personalized disease treatment. This chapter discusses current insights regarding the mechanisms of nano-bio interactions and the origin of adverse effects of nanoformulations. Furthermore, this chapter illustrates possible reasons behind an individual physiological response to a given nanomedicine, such as type and stage of disease, physiological conditions and lifestyle of a patient. Finally, a review of possible approaches for the initial choice of nanoformulation, suitable for a given patient is provided at the end of the chapter.
FPGA-Based Re-Configurable Architecture for Window-Based Image Processing
Authors: Sk Kamarujjaman , Mukherjee Manali , Maitra Mausumi
Published: August 2016

In this proposed book chapter, a simple but efficient presentation of Median Filter, Switching Median Filter, Adaptive Median Filter and Decision-Based Adaptive Filtering Method and their hardware architecture for FPGA is described for removal of up to 99% impulse noise from Digital Images. For hardware architecture, simulation is done using Xilinx ISE 14.5 software of XILINX. For implementation, these approaches utilize Genesys VIRTEX V FPGA device of XC5VLX50T device family. In this approach, we proposed an efficient design for suppression of impulse noise from digital images corrupted by up to 99% impulse noise using decision based adaptive filtering method as well as preserve the details of image. The method works in two different stages – noise detection using switching technique and finally noise suppression and restoration. Experimental results show that our method perform better in terms of PSNR below 80% noise density but above 80% noise density it is almost comparable with the latest methods.
Mobile Platform Challenges in Interactive Computer Vision
Authors: López Miguel Bordallo
Published: August 2016

Computer vision can be used to increase the interactivity of existing and new camera-based applications. It can be used to build novel interaction methods and user interfaces. The computing and sensing needs of this kind of applications require a careful balance between quality and performance, a practical trade-off. This chapter shows the importance of using all the available resources to hide application latency and maximize computational throughput. The experience gained during the developing of interactive applications is utilized to characterize the constraints imposed by the mobile environment, discussing the most important design goals: high performance and low power consumption. In addition, this chapter discusses the use of heterogeneous computing via asymmetric multiprocessing to improve the throughput and energy efficiency of interactive vision-based applications.
Creating Sound Glyph Database for Video Subtitling
Authors: Bhat Chitralekha Ganapati , Kopparapu Sunil Kumar
Published: August 2016

Accessibility of speech information in videos is a huge challenge for the hearing impaired, making a visual representation such as text subtitling essential. Unavailability of a good Automatic Speech Recognition (ASR) engine, makes automatic generation of text subtitles for resource deficient languages such as Indian languages, extremely difficult. Techniques to build such an ASR using audio and corresponding transcription in the form of broadcast news or audio books have been proposed; however, these techniques require transcriptions corresponding to the audio in editable text format, which are unavailable for resource deficient languages. In this chapter, a novel technique of building a sound-glyph database for a resource deficient language has been described. The sound-glyph database can be used effectively to subtitle videos in the same language script. Considering large volumes of data that need to be processed, we propose a parallel processing method in a multiresolution setup, harnessing the multi-core capacity of present day computers.
Culturally Responsive Relationships Focused Pedagogies
Authors: Burgess Catherine Maree , Evans John Robert
Published: August 2016

This chapter examines the importance of culturally responsive relationships-focused pedagogical approaches in engaging Aboriginal students in their learning and the significance of this to improving their educational outcomes. Significantly, the themes and issues raised in this chapter reflect much of the international literature on Indigenous, minority and marginalised students. The following enablers are necessary when implementing culturally responsive relationships focused pedagogies: Engaging with Aboriginal families and community members; Harnessing Aboriginal students' backgrounds, lived experiences and interests as classroom resources; Implementing innovative place-based curriculum approaches, and Exploring holistic teacher professional learning opportunities. The combination of these factors creates quality learning environments as places of belonging and socio-cultural support underpinned by mobilising Aboriginal family and community social and cultural capital in the educational process. Once schools and teachers realise the potential of this approach, conditions are created to improve the academic, social and cultural outcomes of Aboriginal and Torres Strait Islander students.
“I Don't See Color, I Grade on Content”
Authors: Burtin Anika Spratley , Hampton-Garland Pamela , Mizelle-Johnson Nathalie
Published: August 2016

This chapter explores the development and subconscious expressions of microaggressive behaviors and language that are embodied throughout life. The authors introduce microaggression (Sue, 2010) as a culturally embodied element of experiences that often are expressed overtly by teachers within classrooms. These microaggressive actions most often occur in teacher interactions with marginalized students and without intent to offend, yet offending the recipient all the same. This chapter concludes with an outline of ways in which teacher education programs can build upon the framework of “care” (Pang, Stein, Gomez, Matas & Shimogori, 2011) that often underlies teacher candidates' desire to enter the profession in order to help them recognize and deal with embodied values that result in microaggressive acts in the classroom.
Data Accuracy Considerations with mHealth
Authors: Sako Zaid Zekiria , Karpathiou Vass , Adibi Sasan , Wickramasinghe Nilmini
Published: August 2016

With the plethora of mHealth solutions developed being digital, this necessitates the need for accurate data and information integrity. Lack of data accuracy and information integrity in mHealth can cause serious harm to patients and limit the benefits of such promising technology. Thus, this exploratory study investigates data accuracy and information integrity in mHealth by examining a mobile health solution for diabetes, with the aim of incorporating Machine Learning to detect sources of inaccurate data and deliver quality information.
GIS, Spatial Analysis, and Modeling
Authors: Rouzbehani Khadijeh , Sajjadi Ghazaleh , Hatami Mohamad Rahim
Published: August 2016

Breast cancer is a major health issue in all countries affecting thousands of women. Its causes are unknown and the national and international strategies to reduce its morbidity and mortality levels are based on early detection of cancer through screening and treatment according to clinical guidelines. Thus, knowledge of which women are at risk and why they are at risk is therefore essential component of disease prevention and screening. In 2015, an estimated 231,840 new cases of invasive breast cancer are expected to be diagnosed in women in the United States, along with 60,290 new cases of non-invasive (in situ) breast cancer. The purpose of this study is to provide a more detailed analysis of the breast cancer distribution in the United States by comparing the spatial distribution of breast cancer cases against physical environmental factors using Geographic Information System (GIS). Further, it gives background information to the GIS and its applications in health-related research.
Operations Project and Management in Trauma Centers
Authors: Spiegel Thais , Assad Daniel Bouzon Nagem
Published: August 2016

Topic of discussions over the last decades, the literature related to the care of patients suffering from poly-trauma, under the assistance point of view, is sufficiently consolidated concerning to the adoption of best practices, what, usually are conducted and disseminated by accrediting organizations. However, expanding the search frontier beyond the assistance dimension, it's noticed the divergences between the recent researches or theoretical shortcomings regarding to the design and management of these operations. In face of this finding, noticed from a literature review in the most important bases of operations management and health, it's adopted a conceptual model which covers relevant elements of the project of an operation, such as: strategy, capacity, human resources, incentive systems, organizational structure and decision making; in order to systematize the current stage of the field, highlighting the differences between recent studies and proposing a set of practices and premises, which are necessary for the operationalization of the proposed model.
Active and Healthy Aging
Authors: Özmete Emine
Published: August 2016

This study aims to investigate the difficulties experienced by elderly persons in accessing healthcare services and their satisfaction with issues as regards the healthcare system. In this study, qualitative research was carried out to assess the difficulties regarding the healthcare delivery system and satisfaction with the healthcare services. This qualitative research was performed through in-depth interviews with 6 men and 4 women aged 65+ years, in Ankara, the capital city of Turkey. It was discovered that elderly persons required the support of others to access a doctor, a health institution or hospital and the care and support of others for the regular intake of their drugs with increasing age. They were satisfied with the current family physician program. The most significant challenges experienced by elderly persons regarding the healthcare delivery system included crowded hospitals, difficulty walking, the unavailability of wheel chairs, and inadequate assistance from support staff.
The Potential of Crowdsourcing in the Health Care Industry
Authors: Ghosh Kaushik , Sen Kabir C.
Published: August 2016

Crowdsourcing has immense potential in the health care industry as it can tap into a vast global pool of knowledge to solve a wide variety of health care problems. This chapter first categorizes the different problems in the health care industry. It then describes some existing health care services and also discusses the future challenges that a typical crowdsourcing service could face. The chapter emphasizes the potential of crowdsourcing to disrupt old ideas and introduce new ones as well as a make a significant improvement in the social quality for different population groups.
The Applicability of Currently Available Adults ADHD Treatment Tools
Authors: Binhadyan Bader , Wickramasinghe Nilmini
Published: August 2016

E-mental health services are able to provide tools and services to facilities treatment for many various mental disorders, such as Attentions Deficit Hyperactivity Disorder. ADHD is a neurodevelopmental disorder that affect approximately 5% of adults. This paper presents the findings of 12 interviews with psychologist who are specialized in treating adults with ADHD. The interviews emphasis on the use of Information Technology (IT) by psychologists in their treatment of ADHD. The analysis shows that using IT is beneficial for psychologists and patients. However, there are some issues emerged from the findings that could limit the usability of IT.
Health Policy Implementation
Authors: Rouzbehani Khadijeh
Published: August 2016

This research describes policy implementation components of a health system and explains how they affect outcomes. It argues that implemented policies affect various components of a health system in terms of service delivery, workforce, information, financing, medical products, technologies, leadership and governance. Using health system as framework of analysis, the paper explains that the outcome of health policy implementation determines the availability, quality and equitability of program service delivery. The paper goes on to argue that policy implementation barriers, such as demand-and supply-side barriers, market, insufficient resources, cultural barriers, imperfect communication, information, education, coordination, leadership and governance affect the poor and vulnerable groups in developed and developing countries from benefitting from public spending on public health policies and programs.
Patient Privacy and Security in E-Health
Authors: Gürsel Güney
Published: August 2016

In the digital era, undoubtedly, e-health is a major contributor for decision support, education, research and management activities in healthcare. It provides tremendous benefits by easy store and access to data. This easiness brings a big problem together with the benefits. Users have easy access to vast amount of sensitive health data about patients. This may give way to misuse and abuse. That is why the concepts of privacy and security becomes very popular and point of major concern. This chapter is a descriptive study aimed to give principles of these concepts and invoke awareness about.
A Taxonomy for mHealth
Authors: Edirisinghe Ruwini , Stranieri Andrew , Wickramasinghe Nilmini
Published: August 2016

Recently, we are witnessing an exponential growth in remote monitoring and mobile applications for healthcare. These solutions are all designed to ultimately enable the consumer to enjoy better healthcare delivery and /or wellness. In order to understand this growing area, we believe it is necessary to develop a framework to analyse and evaluate these solutions. The purpose of this chapter then is to offer a suitable taxonomy to systematically analyse and evaluate the existing solutions based on number of dimensions including technological, clinical, social, and economic.
A Survey on Game Backend Services
Authors: Peixoto de Queirós Ricardo Alexandre
Published: August 2016

The industry of video games is one of the fastest growing sectors in the worldwide economy. One of the key factors to increase engagement and player retention, was the use of various common game concepts such as leaderboards and achievements. The massive use of this approach and the impressive growth of players led to the concept of gamification as a service, later materialized in Game Backend as a Service (GBaaS). Instead of replicating the implementation of the game features in each version of the game for several platforms, GBaaS adhere to a service oriented architecture providing cross-platform game services that lets you easily integrate popular gaming features such as achievements, leaderboards, remote storage and real-time multiplayer in games. This chapter surveys several GBaaS based on the features they offer and on their openness for the integration with computer programming environments.
Mastering Educational Computer Games, Educational Video Games, and Serious Games in the Digital Age
Authors: Kasemsap Kijpokin
Published: August 2016

This chapter explains the overview of educational computer games; the reward and feedback systems in educational computer games; the significance of educational computer games in the digital age; the aspects of educational video games; the multifaceted applications of educational video games; the perspectives on serious games; the design of serious games in educational settings; the applications of serious games in the health care industry; and the challenges of serious games in the digital age. The applications of educational computer games, educational video games, and serious games are essential in educational institutions that seeks to serve teachers and students, increase educational performance, enhance competitiveness, and fulfill accomplishment in global education. The chapter argues that utilizing educational computer games, educational video games, and serious games has the potential to improve educational performance and reach strategic goals in the game-based learning environments.
The Introductory Programming Course
Authors: Martin Nancy L. , Soares Andrey
Published: August 2016

Teaching and learning in the introductory programming course can be difficult. Numerous studies address this problem with none resulting in a perfect approach for either students or instructors. The authors of this chapter found success in the introductory programming course by implementing problem-based learning and by delivering the entire course in the context of game design. While this approach has been successful in a face-to-face environment, the e-learning environment presents some challenges. This chapter describes successful pedagogical strategies for the introductory programming course and provides recommendations for their implementation in the e-learning environment.
Applying Gamification in a Parallel Programming Course
Authors: Fresno Javier , Ortega-Arranz Hector , Ortega-Arranz Alejandro , Gonzalez-Escribano Arturo , Llanos Diego R.
Published: August 2016

Pursuing a college degree is a task that requires a great amount of time and effort. Universities are facing a big challenge to attract students and keep them motivated. The gamification of education is a practice that expects to increase the students' engagement, which in turn increases learning outcomes. Nevertheless, obtaining beneficial results from gamification requires educators to mold the teaching to include this new practice, usually involving a lot of effort. In this chapter, the authors present a new software tool developed to encourage gamification dynamics, and they describe their experience using this tool in a Parallel Programming course. The chapter describes the structure of the course, the different proposed activities, the organization of hardware resources, the design of the developed software tool, and an evaluation of the gamified course. The results show that the use of gamification techniques has been a great success. The authors have had a very positive response from their students, and there has been also a big percentage of passing students.
Using Game Frameworks to Teach Computer Programming
Authors: Simões Alberto
Published: August 2016

Teaching computer programming is an important task in the formation of computer scientists. Being a subject taught in the first years of student degrees, need to properly motivate students, so they try, at home, to learn by themselves, complementing that way their classes. This chapter proposes an approach to computer programming teaching based on the construction of videogames, using state of the art game frameworks. The author will show how the task of writing a game using a common framework deals with the basic programming concepts that are usually taught on a first course on computer programming, namely on object oriented programming languages like C# or Java: algebraic operations with variables, methods declaration, objects definition, objects hierarchy and multidimensional arrays. As it will be shown, even the common order of concepts presentation during the course can be kept, although applying them to computer games instead of the usually requested exercises.
Playing with Programming
Authors: Gomes Anabela de Jesus , Santos Álvaro Nuno Ferreira Silva , Páris César Paulo das Dores , Martins Nuno Cid
Published: August 2016

This chapter aims to present Code, a friendly environment where students without previous programming experience can explore core-programming concepts in a motivating manner. It consists of a platform style game where students can control a virtual robot having their first contact with the construction of small pseudocode blocks. Research in teaching and learning of programming present several reasons for the difficulties students face when starting programming. In this chapter we have pointed out some of them. The studies performed also indicated that the aspects related to problem solving are the principal factors to attack in order to solve this problem. However, the main concern is how to provide a motivating environment that engages the student in computational thinking and problem solving. Code Factory's main objective is to create a new strategy making learning more stimulating for the students emphasizing problem solving in order to help develop fundamental programming skills.
Analysis of the Bacterial Vesicles' Enhanced Toxicological Threat Via Electron Microscopy
Authors: Curia Roberta , Milani Marziale , Didenko Lyubov V , Avtandilov George A , Shevlyagina Natalia V , Tatti Francesco
Published: August 2016

This study shows the importance of electron microscopy in the analysis of the interaction of microorganisms (Staphylococcus aureus) with polymeric (polyurethane) dental prostheses. Starting from the biofilm formation and the biodestruction of the plastic material resulting in the production of polyurethane nanoparticles, the focus is on the bacterial secretion of membrane vesicles (in the range of 20-50 nm) loaded with plastic nanoparticles (from 2-3 to 10 nm) and on the toxicological threat that these delivery devices represent when interacting with host cells. The nanoparticles deliverance led by the bacterial infections dynamics opens new ways to the possibility of delivering drugs to selected cells.
Sensing the Presence and Amount of Microbes Using Double Walled Carbon Nanotubes
Authors: Joshi Anand Y , Patel Ajay M
Published: August 2016

The principle of mass detection using nano biosensors is based on the fact that the resonant frequency is very much sensitive to the mass of the bio-molecule, as with mass changes stiffness varies. The change of the attached mass on the CNT causes a shift to the resonant frequency. The key issue of mass detection is in quantifying the shift in the resonant frequency due to the mass of the attached molecule.This study, explores the vibration responses of the cantilever single and double-walled carbon nanotube with various attached microbes on the tip with an aim of developing a sensor. The biological objects studied include Alanine with Amino terminal residue, Deoxyadeonosine with free residue, Coronaviridae, Bartonella bacilliformis etc.. This sensor will be utilized to facilitate the identification of bacteria or virus that may be attached to CNT.
Predicting Impulsive Buyers
Authors: Prashar Sanjeev , Parsad Chandan , Vijay T Sai
Published: August 2016

Researches over the years have posited that most of the purchasing decisions made by shoppers are unplanned and mostly made inside the store. Every year retailers spend huge amount on in-store promotion and store environment to gain consumers' attention and stimulate them for such impulsive purchasing. The dominant impact of unplanned purchasing behaviour advocates its comprehensive understanding in retail business. Inability of marketers to accurately forecast this unplanned shopping leads to situations of either over-stocking or under-stocking of inventories, causing increased cost of holding inventory or huge loss of customers respectively. In this research, accuracy in predicting impulse buying behavior using six modeling techniques, utilizing R-3.2.1 as a statistical tool, is tested with data drawn from two Indian metropolitan cities. The main objective is to analyze the relationship between independent variables (influencing factors) and impulsive buying, and comparing the effectiveness of these six modelling techniques. The discriminative ability evidences that forecasting performance of logistic regression is superior to all other techniques in terms of predicting power. The findings of the study offer a number of implications for retailers and marketers. The managerial implications of the study along with scope of further research have been addressed.
Joining by Upset Bulging at Elevated Temperatures
Authors: Almohallami Amer , Rusch Michael , Vucetic Milan , Bouguecha Anas , Bambach Markus , Behrens Bernd-Arno
Published: August 2016

Due to the limitations of other processes in joining different types of material, mechanical joining methods can be alternatively used. Joining by upset bulging can be employed for joining tubes with other structures such as sheets, plates, tubes or profiles as well as for joining different materials. In spite of successful industrial applications of this joining process, material damage is still a challenge. This damage affects the resistance of the created joint to service loads. Thus, in this paper, a local heating is studied, which aims at avoiding pre-damage or failure of the joint. A parametric FE model is developed to analyse the influence of local heating on the bulging process. It is found that the process window set by the bulge length suitable for joining is widened, but only to a minor extent. The marginal influence of local heating on the bulge geometry allows designing the process in the same way as room temperature processes. Metallographic investigations confirm the damage-free bulging of tubes by forming at elevated temperatures. Another important result is that tubes can be equipped with predefined bulge zones by local heating zones to 700 °C for 15 seconds for example. This enables bulging of tubes during joining by applying an axial load only, without using tools to define the location of the bulge or its length, thus enabling joining operations with limited access.
Extended Calculation Model for Generating Gear Grinding Processes
Authors: Hübner Florian , Löpenhaus Christoph , Klocke Fritz , Brecher Christian
Published: August 2016

Generally, hard finishing is the final step in manufacturing cylindrical gears. The most established processes for hard finishing are continuous generation grinding and discontinuous profile grinding [1]. Despite the wide industrial application of the continuous generation grinding process, only few scientific investigations exist. One possible reason for this are the complex contact conditions between tool and gear flank. Modelling the complex contact conditions between grinding worm and gear to calculate cutting forces, characteristic values as well as micro- and macroscopic gear geometry are the topics of this paper. The approaches are introduced and results for validation are presented and discussed.
Intrinsic Hybrid Composites for Lightweight Structures: New Process Chain Approaches
Authors: Koch Simon Frederik , Barfuss Daniel , Bobbert Mathias , Groß Lukas , Grützner Raik , Riemer Matthias , Stefaniak Daniel , Wang Zheng
Published: August 2016

This publication describes new process chain approaches for the manufacturing of intrinsic hybrid composites for lightweight structures. The introduced process chains show a variety of different part and sample types, like insert technology for fastening of hollow hybrid shafts and profiles. Another field of research are hybrid laminates with different layers of carbon fiber reinforced plastics stacked with aluminum or steel sheets. The derived process chains base on automated fiber placement, resin transfer molding, deep drawing, rotational molding and integral tube blow molding.
Intrinsic Hybrid Composites for Lightweight Structures: Tooling Technologies
Authors: Wang Zheng , Riemer Matthias , Koch Simon Frederik , Barfuss Daniel , Grützner Raik , Augenthaler Florian , Schwennen Jan
Published: August 2016

The increasing use of hybrid materials requires efficient manufacturing processes. With the concept of the intrinsic hybrids the shaping or forming of the part is combined with the hybridization in the same process step and thereby the same tool. Hence new tooling concepts, which realise the process requirements, are necessary. This paper describes tooling concepts and design methods for the manufacturing of intrinsic hybrid parts. Different solutions for rotational and planar parts with thermosetting or thermoplastic matrix material are presented. Additionally the integration of inserts in such tools is discussed. Finally the main challenges for the design of tools for intrinsic hybrids will be presented.
New Approach for the Efficient Manufacturing of Sandwich Structures Based on Sheet Moulding Compounds
Authors: Fette Marc , Reiß Markus , Wulfsberg Jens P. , Stoess Nicole , Hentschel Martin
Published: August 2016

Today's sandwich structures and materials offer a high potential for lightweight design and are being used in various industrial applications. However, the material and manufacturing costs for structural sandwich structures in aerospace and automotive industry are comparatively high. Furthermore the production of lightweight and functional composite-sandwich components is usually characterised by long manufacturing lead times and a high level on manual workload. In this context the production of lightweight, functional and geometric complex sandwich structures consisting of SMC layers and closed cell rigid foams as core material in a single-step compressing moulding process is very promising. By using such a process new design approaches, a high level of functional integration as well as excellent cost, material and resource efficiencies can be realised. This paper deals with the new manufacturing approach, first experimental investigations on the mechanical properties and the estimated potentials for using these high-efficient, lightweight sandwich structures in aviation and automotive industry.
Forming of Stringer Sheets with Solid Tools
Authors: Köhler Stefan , Groche Peter , Baron Alexander , Schuchard Maximilian
Published: August 2016

Stringer sheets are bifurcated parts that possess, compared to flat sheet metal parts, a higher stiffness due to their higher geometrical moment of inertia. Currently, the common way of forming spatially curved stringer sheets is hydroforming. This article shows the feasibility of forming stringer sheets by using solid tools with short process times, which is more relevant for the industrial application. A die-bending process with a slot in the punch for the stringer is investigated. Since buckling of the stringer is one of the occurring failure modes, depending on the stringer height, an analytical estimation of the critical stringer height is carried out while considering the bending angle, bending radius and sheet thickness. The subsequent numerical and experimental investigations show a good agreement with the analytical estimation. Finally, a stiffness test is carried out with stringer sheets of different stringer heights. The result of this test underlines the motivation of forming buckling-free stringer sheets with stringers as high as possible. The normalized stiffness increases with rising stringer height until buckling occurs. At this point the stiffness values begin to fall with growing stringer height.
Active Wind Turbine Deicing-Systems Produced via Plasma-Coating-Technology
Authors: Braun Thomas , Weber Johannes , Brüstle Maximilian , Wössner Peer , Praß Julian , Franke Jörg
Published: August 2016

Within the framework of the Renewable Energies Act, besides biomass power stations wind turbine systems enact a significant role since they produce power by using a primary source of renewable energies. As widespread and technical advanced wind turbines are, they still exhibit shortcomings when operating in cold temperatures. Therefore, especially in frigid regions, there is a high risk regarding icing and forming of hoarfrost. Iced rotor blades lead to considerable disadvantages during operation, like ice shedding, unbalanced or off-centered loads, and downtimes.Different heating systems that are already available show some disadvantages, such as the difficulties in integrating the installation of those systems directly in the production process. Thus, a new technology is presented which eliminates existing challenges and can be integrated into current production lines. Furthermore, the results of the investigations for the applicability of this new system for de-icing wind turbines is pictured. Due to an innovative plasma technology, the surfaces of rotor blades can be coated with a heating structure layer. The new technology is presented and the influence of different machine parameters of the coating process are shown based on several experimental results. In further tests, the metal structured rotor blades are examined under real conditions and the suitability of this technology for a series launch is rated.
Systematic Process Chain Creation for CFRP Structures in Early Product Development Stages
Authors: Behr Matthias , Schmidt Carsten
Published: August 2016

A planning method is presented which allows to systematically building process chains based on a preliminary design of composite structures. The method utilises the specific sequences of procedural steps that occur in the production of carbon fibre reinforced plastic (CFRP) structures, to build sub process chains for each component of the structure. Process restrictions are considered to evaluate the suitability of different production processes. To obtain the whole process chain of the structure, different joining methods are applied in addition to combine the components and its sub process chains. The results of the presented method are used in an overarching development procedure to investigate resulting impacts on the solution. Possible impacts could be the production costs or the material characteristics.
Natural Frequency Analysis in the Workspace of a Six-Axis Industrial Robot Using Design of Experiments
Authors: Glogowski Paul , Rieger Michael , Sun Jia Bin , Kuhlenkötter Bernd
Published: August 2016

This paper deals with a natural frequency distribution of a six-axis industrial robot in order to analyze chatter vibrations in upcoming milling processes. Since the dynamic vibration behavior of the robotic system can be manipulated by changing the robot’s joint configuration, experimental modal analysis is performed to determine the natural frequencies in the entire workspace. In this study, methods of design of experiments are used to derivate a mathematical model that predicts the natural frequencies of the robotic structure for any joint configuration within the considered workspace.
Electromagnetic System to Improve the Manufacturing Accuracy at the Presence of Horizontal Process Forces
Authors: Gröne Michael , Rosenbusch Daniel , Krimm Richard , Behrens Bernd-Arno
Published: August 2016

Forming asymmetric parts leads to horizontal process forces applied to the ram of a form-ing machine. These forces entail horizontal ram displacement and influence the quality of the pro-duced parts negatively. By application of horizontal counterforces to the ram, the displacement can be avoided and the process stability be improved. For the purpose of applying horizontal counter-forces, an electromagnetic system, which will be integrated in a forming machine, is currently under development. The requirements to the system are presented as well as the design optimised in vali-dated electromagnetic simulations and the approach for the mechanical integration into a forming machine.
Investigation on the Dynamic Behaviour of an Ultrasonic-Levitation Magnetic Guiding System
Authors: Reiners Jan , Denkena Berend
Published: August 2016

Guiding systems for precision manufacturing machines have to fulfil high demands. Low compliance and the absence of friction is required to achieve a high production accuracy. This article presents a novel active guiding system based on the combination of ultrasonic levitation and magnetic actuators. Firstly, the combined actuator and its working principles are described. Subsequently, the concept for an active, frictionless and medium-free guiding system is outlined. In addition to the free degree of freedom (DOF) in guiding direction, the other 5 DOF are adjustable in order to improve the guides positioning accuracy. The experimental validation of the concept is conducted with a simplified prototype, acting as a 3 DOF adjustable planar guide. Finally, measured compliance frequency responses demonstrate the performance of this novel active guiding concept.
Identification of Influence Parameters and Dependencies on the Illumination of Machine Vision Systems for Robots
Authors: Berger Simon , Biehle Patrick , Villarroel Miguel , Brückmann Nicolas , Richter Christoph , Reinhart Gunther
Published: August 2016

Machine vision systems need to cope with harsh environmental conditions, when used for guiding robots. To increase the reliability of these systems, they are either shielded from their environment or highly advanced, using sophisticated mathematical algorithms. In this paper the effects of external illumination on machine vision systems are investigated. For this the pose and the brightness of the external illumination and the internal illumination of the camera and its exposure time are varied. In a next step the correlation between the parameters of the external illumination and reliability of the machine vision system is analysed. Finally requirements are derived for further development of machine vision systems.