IDMoB: IoT Data Marketplace on Blockchain

Today, Internet of Things (IoT) devices are the powerhouse of data generation with their ever-increasing numbers and widespread penetration. Similarly, artificial intelligence (AI) and machine learning (ML) solutions are getting integrated to all kinds of services, making products significantly more "smarter". The centerpiece of these technologies is "data". IoT device vendors should be able keep up with the increased throughput and come up with new business models. On the other hand, AI/ML solutions will produce better results if training data is diverse and plentiful. In this paper, we propose a blockchain-based, decentralized and trustless data marketplace where IoT device vendors and AI/ML solution providers may interact and collaborate. By facilitating a transparent data exchange platform, access to consented data will be democratized and the variety of services targeting end-users will increase. Proposed data marketplace is implemented as a smart contract on Ethereum blockchain and Swarm is used as the distributed storage platform.Comment: Presented at Crypto Valley Conference on Blockchain Technology (CVCBT 2018), 20-22 June 2018 - published version may diffe

A Workstation for microassembly

In this paper, an open-architecture, reconfigurable microassembly workstation for efficient and reliable assembly of micromachined parts is presented. The workstation is designed to be used as a research tool for investigation of the problems in microassembly. The development of such a workstation includes the design of: (i) a manipulation system consisting of motion stages providing necessary travel range and precision for the realization of assembly tasks, (ii) a vision system to visualize the microworld and the determination of the position and orientation of micro components to be assembled, (iii) a robust control system and necessary mounts for the end effectors in such a way that according to the task to be realized, the manipulation tools can be easily changed and the system will be ready for the predefined task. In addition tele-operated and semi-automated assembly concepts are implemented. The design is verified by implementing the range of the tasks in micro-parts manipulation. The versatility of the workstation is demonstrated and high accuracy of positioning is sho

In-wheel motor design for electric vehicles

In this work an in-wheel electric motor prototype has been designed for experimental purposes. In-Wheel Motor (Hub motor) can be used in electric cars with 4 wheel independent drive configuration. Within every wheel, there can be one “Direct-Drive In-Wheel Motor” to generate the necessary torque per wheel. Unlike conventional “central drive unit” systems, torque as well as the power and speed can be supplied to each tire independently. The difference in this work is the design of a direct drive electric motor which is able to carry transverse loading acts on a tire. Type of the motor is called inverted configuration or outer rotor structure in the literature. The electric machine designed in this work is Switched Reluctance Machine. First a 3D solid model was created. Necessary strength analyses have been done. Simultaneously, electromagnetic FEA has been done, when it is necessary either of the designs were modified until it converged to a set of consistent dimensions for both mechanic and electromagnetic design. Last, the results of the electromagnetic analysis were embedded into a hybrid simulation model, in order to check the coherency between the design and the analysis. The results were coherent

VIEWS OF EXPECTANT MOTHERS ABOUT SOURCES OF KNOWLEDGE AND SKILLS RELATED TO MOTHERHOOD

When expectant mothers prepare for motherhood, this has a positive impact on their own lives and in terms of their children. The preparations in the process of pregnancy, birth, postpartum and baby care made by a mother-to-be who is becoming a parent for the first time also have an impact on preventing the prevalence of non-functional beliefs and practices. The purpose of this study is to determine the views of first-time expectant mothers regarding the available resources of knowledge and skills related to motherhood. The study was conducted with 16 volunteer mothers-to-be registered at the Mother and Child Health Center in the Altı Eylül District of the province of Balıkesir, Turkey. Semi-structured interviews were held with the prospective mothers. The data were analyzed with content analysis. The prospective mothers stated that their sources of knowledge and skills related to motherhood were their own mothers and that they were not following up on any website, blog, book or magazine for this kind of information. While all of the mothers-to-be said that they would participate in an educational program on pregnancy if one were available, none of them had ever attended a pregnancy education program. In this context, when it is considered that the mothers-to-be participating in the study were in the first years of their marriages, it might be recommended that prospective mothers be provided with parent education together with their husbands, regardless of their educational background.  Article visualizations