Case Report: Preliminary Images From an Electromagnetic Portable Brain Scanner for Diagnosis and Monitoring of Acute Stroke

Introduction: Electromagnetic imaging is an emerging technology which promises to provide a mobile, and rapid neuroimaging modality for pre-hospital and bedside evaluation of stroke patients based on the dielectric properties of the tissue. It is now possible due to technological advancements in materials, antennae design and manufacture, rapid portable computing power and network analyses and development of processing algorithms for image reconstruction. The purpose of this report is to introduce images from a novel, portable electromagnetic scanner being trialed for bedside and mobile imaging of ischaemic and haemorrhagic stroke.Methods: A prospective convenience study enrolled patients (January 2020 to August 2020) with known stroke to have brain electromagnetic imaging, in addition to usual imaging and medical care. The images are obtained by processing signals from encircling transceiver antennae which emit and detect low energy signals in the microwave frequency spectrum between 0.5 and 2.0 GHz. The purpose of the study was to refine the imaging algorithms.Results: Examples are presented of haemorrhagic and ischaemic stroke and comparison is made with CT, perfusion and MRI T2 FAIR sequence images.Conclusion: Due to speed of imaging, size and mobility of the device and negligible environmental risks, development of electromagnetic scanning scanner provides a promising additional modality for mobile and bedside neuroimaging.

Design and development of hardware platform for fully-assistive lower leg exoskeleton

The abundance of cheap, portable computing has allowed for complex applications of robotics, especially in the medical rehabilitation field. The emergence of wearable robotics which simulate the movement of healthy individuals is seen as a new option for treating and rehabilitating individuals with paraplegia and other motor disorders. This thesis presents the design and implementation of a miniaturized, low-power, extensible hardware platform for control of a fully-assistive lower-body exoskeleton. A preliminary ARM Cortex-M4-based control platform using modular COTS parts was developed and implemented in a medical exoskeleton (the Bionik Laboratories’ ARKE) and was evaluated through human medical trials. Clinical feedback was used to drive the design of a new platform. A functional prototype of the design was constructed and retrofitted onto an exoskeleton. Data acquisition and MATLAB was then used to evaluate and compare the performance of the two designs. A size reduction of 29% is achieved.

Design and development of hardware platform for fully-assistive lower leg exoskeleton

The abundance of cheap, portable computing has allowed for complex applications of robotics, especially in the medical rehabilitation field. The emergence of wearable robotics which simulate the movement of healthy individuals is seen as a new option for treating and rehabilitating individuals with paraplegia and other motor disorders. This thesis presents the design and implementation of a miniaturized, low-power, extensible hardware platform for control of a fully-assistive lower-body exoskeleton. A preliminary ARM Cortex-M4-based control platform using modular COTS parts was developed and implemented in a medical exoskeleton (the Bionik Laboratories’ ARKE) and was evaluated through human medical trials. Clinical feedback was used to drive the design of a new platform. A functional prototype of the design was constructed and retrofitted onto an exoskeleton. Data acquisition and MATLAB was then used to evaluate and compare the performance of the two designs. A size reduction of 29% is achieved.

Toward a corporal architecture building about the body

Throughout history the human body has formed the subject, defined the scale and proportion, and inspired the tectonic and symbolic language of architecture. While modern methods sought to codify the body for the purposes of standardized measurement, ergonomics, and the development of building codes, the implications derived from this approach have resulted in limited and standardized procedures for designing space in relation to the body. Recent advances in materials science, portable computing, and sensing technologies have opened up several possibilities for a deeper level of engagement and interaction between the body and its environment. As wireless communications continue to blur the boundaries between personal and global space, new dialogues are emerging that implicate both intimate material interfaces and wider organizational frameworks. Introducing the notion of ‘wearable space’, parallels between fashion and architecture are drawn as a means of re-examining the relationship between the body, clothing and architecture; the first, second and third skin of the body respectively.

Toward a corporal architecture building about the body

Throughout history the human body has formed the subject, defined the scale and proportion, and inspired the tectonic and symbolic language of architecture. While modern methods sought to codify the body for the purposes of standardized measurement, ergonomics, and the development of building codes, the implications derived from this approach have resulted in limited and standardized procedures for designing space in relation to the body. Recent advances in materials science, portable computing, and sensing technologies have opened up several possibilities for a deeper level of engagement and interaction between the body and its environment. As wireless communications continue to blur the boundaries between personal and global space, new dialogues are emerging that implicate both intimate material interfaces and wider organizational frameworks. Introducing the notion of ‘wearable space’, parallels between fashion and architecture are drawn as a means of re-examining the relationship between the body, clothing and architecture; the first, second and third skin of the body respectively.

Pair Wise Swapping Based Hypergraph Partitioning Algorithms for VLSI Design

A VLSI integrated circuit is the most significant part of electronic systems such as personal computer or workstation, digital camera, cell phone or a portable computing device, and automobile. So development within the field of electronic space depends on the design planning of VLSI integrated circuit. Circuit partitioning is most important step in VLSI physical design process. Many heuristic partitioning algorithms are proposed for this problem. The first heuristic algorithm for hypergraph partitioning in the domain of VLSI is FM algorithm. In this paper, I have proposed three variations of FM algorithm by utilizing pair insightful swapping strategies. I have played out a relative investigation of FM and my proposed algorithms utilizing two datasets for example ISPD98 and ISPD99. Test results demonstrate that my proposed calculations outflank the FM algorithm.

Security in Ad Hoc Network and Computing Paradigms

Resource sharing is the most attractive feature of distributed computing. Information is also a kind of resource. The portable computing devices and wireless networks are playing a dominant role in enhancing the information sharing and thus in the advent of many new variants of distributed computing viz. ubiquitous, grid, cloud, pervasive and mobile. However, the open and distributed nature of Mobile Ad Hoc Networks (MANETs), Vehicular Ad Hoc Networks (VANETs) and cloud computing systems, pose a threat to information that may be coupled from one user (or program) to another. The chapter illustrates the general characteristics of ad hoc networks and computing models that make obligatory to design secure protocols in such environments. Further, we present a generic classification of various threats and attacks. In the end, we describe the security in MANETs, VANETs and cloud computing. The chapter concludes with a description of tools that are popularly used to analyze and access the performance of various security protocols.

Portables, luggables, and transportables: Historicizing the imagined affordances of mobile computing

This article contributes to the history of “mobile media beyond mobile phones” by accounting for genres of portable computing (or “portables”) that emerged in the late 1980s. Though largely overlooked by historians of technology, these mobile, less-than-mobile, and relatively immobile devices helped shape the social and cultural uses of contemporary mobile communication. I argue that the technological capabilities of portables altered users’ expectations for how and where computers could be incorporated into daily life, be it near bodies, on hand, or at one’s fingertips. While the market for bulky portables dwindled by the late 1990s, as laptops and cell phones became more ubiquitous, these consumer electronics are nonetheless useful today for understanding the perpetual role of materiality and embodiment in how we conceive of the imagined affordances of mobile communication technologies.

A Comparative Study of Low Power Testing Techniques for Digital Circuits

In recent years, with fast growth of mobile communication and portable computing systems, design for low power has become the challenge in the field of Digital VLSI design. The main focus of the paper is to make a comparative study of low power Linear Feedback Shift Register (LFSR) architecture such as Built In Self Test (BIST), it has been often seen that during test mode process the power consumed is much higher, when compared to that of normal mode process test as there is high switching activity in the nodes of Circuit Under Test(CUT) during testing.