A review on antennas for biomedical implants used for IoT based health care

Sensor Review ◽  
2019 ◽  
Vol 40 (2) ◽  
pp. 273-280 ◽  
Author(s):  
Kasturi Sudam Patil ◽  
Elizabeth Rufus
Keyword(s):  
Biomedical Application ◽  
Implantable Devices ◽  
Biomedical Implants ◽  
Implantable Medical Devices ◽  
Safety Communication ◽  
Content Type ◽  
Compact Size ◽  
Recent Developments ◽  
Implantable Antenna ◽  
Communication Ability

Purpose The paper aims to focus on implantable antenna sensors used for biomedical applications. Communication in implantable medical devices (IMDs) is beneficial for continuous monitoring of health. The ability to communicate with exterior equipment is an important aspect of IMD. Thus, the design of an implantable antenna for integration into IMD is important. Design/methodology/approach In this review, recent developments in IMDs, three types of antenna sensors, which are recommended by researchers for biomedical implants are considered. In this review, design requirements, different types of their antenna, parameters and characteristics in medical implants communication system (MICS) and industrial, scientific and medical (ISM) bands are summarized here. Also, overall current progress in development of implantable antenna sensor, its challenges and the importance of human body characteristics are described. Findings This article give information about the requirements of implantable antenna sensor designs, types of antennas useful to design implantable devices and their characteristics in MICS and ISM bands. Recent advancement in implantable devices has led to an improvement in human health. Originality/value The paper provides useful information on implantable antennas design for biomedical application. The designing of such antennas needs to meet requirements such as compact size, patients’ safety, communication ability and biocompatibility.

Recent developments in China’s biopharmaceutical industry (2012-2017)

2019 ◽  
Vol 10 (3) ◽  
pp. 686-707
Author(s):  
Marcus Conlé
Keyword(s):  
Product Innovation ◽  
Academic Research ◽  
Domestic Market ◽  
Growth Strategy ◽  
Future Research ◽  
Biopharmaceutical Industry ◽  
Content Type ◽  
Drug Regulator ◽  
Recent Developments ◽  
Product Portfolios

Purpose The paper aims to take stock of China’s recent biopharmaceutical industry development by analyzing product innovation and changes in the firms’ product portfolios during the five-year period between 2012 and 2017. Design/methodology/approach The paper introduces a classification of biopharmaceutical products. By applying the classification to the product data of China’s drug regulator, the CFDA, it becomes possible to trace the developments within the sector by looking at changes in the number of firms within each subgroup and changes in the number of subgroups in which each firm is involved. The classification allows an evaluation of the latest product innovation achievements. Findings The paper demonstrates a mild shakeout of firms in the relatively long-existing domestic market segments, a trend toward more specialized product portfolios and an enduring prevalence of innovation strategies aimed at exploiting relatively unpopulated domestic market niches instead of pioneering entirely new products. Especially the capability of upgrading to second-generation protein therapeutics has become a key criterion for separating the wheat and the chaff in China’s domestic sector. The paper moreover points out the relevance of acquisitions as a corporate growth strategy. Research limitations/implications The research does not consider complementary indicators, product pipelines in particular. Future research should compare patterns across emerging economies. Originality/value The paper is unique in using the CFDA database for systematic academic research on (bio)pharmaceutical innovation and in introducing a biopharmaceutical product classification to trace innovative activities and changes in corporate product portfolios over time.

Document supply and resource sharing in Portuguese libraries: the role of the National Library

2010 ◽  
Vol 38 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Elisa Maria Gaudêncio Soares
Keyword(s):  
Information Technology ◽  
Resource Sharing ◽  
Design Methodology ◽  
Public Library ◽  
Supply System ◽  
National Library ◽  
Content Type ◽  
Long Period ◽  
Recent Developments

PurposeThe purpose of the paper is to describe the development of the Portuguese document supply system with particular emphasis on the role of the National Library but also in its academic and public library sectors.Design/methodology/approachThe paper is descriptive in nature.FindingsPortugal emerged from a long period of monarchy and dictatorship, profited from being a EU member, and libraries are now exploiting the advantages of information technology particularly for the benefit of remote users.Originality/valueThis is probably the first overview of historical and recent developments in document supply in Portugal.

China’s shadow banking sector: beneficial or harmful to economic growth?

2015 ◽  
Vol 7 (4) ◽  
pp. 421-445 ◽  
Author(s):  
James R. Barth ◽  
Tong Li ◽  
Wen Shi ◽  
Pei Xu
Keyword(s):  
Economic Growth ◽  
Banking Sector ◽  
Commercial Banking ◽  
Global Perspective ◽  
Shadow Banking ◽  
Content Type ◽  
Wide Range ◽  
Recent Developments ◽  
Major Factors ◽  
Made In

Purpose – The purpose of this paper is to examine recent developments pertaining to China’s shadow banking sector. Shadow banking has the potential not only to be a beneficial contributor to continued economic growth, but also to contribute to systematic instability if not properly monitored and regulated. An assessment is made in this paper as to whether shadow banking is beneficial or harmful to China’s economic growth. Design/methodology/approach – The authors start with providing an overview of shadow banking from a global perspective, with information on its recent growth and importance in selected countries. The authors then focus directly on China’s shadow banking sector, with information on the various entities and activities that comprise the sector. Specifically, the authors examine the interconnections between shadow banking and regular banking in China and the growth in shadow banking to overall economic growth, the growth in the money supply and the growth in commercial bank assets. Findings – Despite the wide range in the estimates, the trend in the size of shadow banking in China has been upward over the examined period. There are significant interconnections between the shadow banking sector and the commercial banking sector. Low deposit rate and high reserve requirement ratios have been the major factors driving its growth. Shadow banking has been a contributor, along with money growth, to economic growth. Practical implications – The authors argue that shadow banking may prove useful by diversifying China’s financial sector and providing greater investments and savings opportunities to consumers and businesses throughout the country, if the risks of shadow banking are adequately monitored and controlled. Originality/value – To the authors’ knowledge, this paper is among the few to systematically evaluate the influence of shadow banking on China’s economic growth.

Compact dual-mode microstrip bandpass filter based on slotted square patch resonator

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Karthie S. ◽  
Zuvairiya Parveen J. ◽  
Yogeshwari D. ◽  
Venkadeshwari E.
Keyword(s):  
Bandpass Filter ◽  
Filter Design ◽  
Center Frequency ◽  
Dual Mode ◽  
Content Type ◽  
Transmission Zeros ◽  
Compact Size ◽  
Mode Response ◽  
Better Than ◽  
Good Agreement

Purpose The purpose of this paper is to present the design of a compact microstrip bandpass filter (BPF) in dual-mode configuration loaded with cross-loop and square ring slots on a square patch resonator for C-band applications. Design/methodology/approach In the proposed design, the dual-mode response for the filter is realized with two transmission zeros (TZs) by the insertion of a perturbation element at the diagonal corner of the square patch resonator with orthogonal feed lines. Such TZs at the edges of the passband result in better selectivity for the proposed BPF. Moreover, the cross-loop and square ring slots are etched on a square patch resonator to obtain a miniaturized BPF. Findings The proposed dual-mode microstrip filter fabricated in RT/duroid 6010 substrate using PCB technology has a measured minimum insertion loss of 1.8 dB and return loss better than 24.5 dB with a fractional bandwidth (FBW) of 6.9%. A compact size of 7.35 × 7.35 mm2 is achieved for the slotted patch resonator-based dual-mode BPF at the center frequency of 4.76 GHz. As compared with the conventional square patch resonator, a size reduction of 61% is achieved with the proposed slotted design. The feasibility of the filter design is confirmed by the good agreement between the measured and simulated responses. The performance of the proposed filter structure is compared with other dual-mode filter works. Originality/value In the proposed work, a compact dual-mode BPF is reported with slotted structures. The conventional square patch resonator is deployed with cross-loop and square ring slots to design a dual-mode filter with a square perturbation element at its diagonal corner. The proposed filter exhibits compact size and favorable performance compared to other dual-mode filter works reported in literature. The aforementioned design of the dual-mode BPF at 4.76 GHz is suitable for applications in the lower part of the C-band.

scholarly journals The soft side of environmentally-sustainable organizations

2018 ◽  
Vol 53 (4) ◽  
pp. 622-627 ◽  
Author(s):  
Charbel Jose Chiapetta Jabbour ◽  
Douglas William Scott Renwick
Keyword(s):  
Research Agenda ◽  
Positive Impact ◽  
Content Type ◽  
Environmentally Sustainable ◽  
Recent Developments ◽  
Ecological Objectives ◽  
Human Side ◽  
Green Human Resource Management ◽  
New Research ◽  
Sustainable Organizations

Purpose The purpose of the paper is to present a discussion on the “soft and human” side of building environmentally sustainable organizations, a flourishing management subfield called “green human resource management” (GHRM), which concerns alignment of people and environmental management objectives of organizations. Design/methodology/approach The authors reviewed some of the most relevant research results in GHRM. Findings In this paper, the authors define GHRM, its workplace-based practices and some recent developments’ evidence on the positive impact of it on firms’ ecological objectives. The authors conclude by detailing a new research agenda in GHRM. Originality/value The authors conclude by detailing a new and contemporary research agenda in GHRM.

Coplanar waveguide-fed ISM band implantable crossed-type triangular slot antenna for biomedical applications

2013 ◽  
Vol 6 (2) ◽  
pp. 167-172 ◽  
Author(s):  
Srinivasan Ashok Kumar ◽  
Thangavelu Shanmuganantham
Keyword(s):  
Biomedical Applications ◽  
Biomedical Application ◽  
Coplanar Waveguide ◽  
Impedance Matching ◽  
High Gain ◽  
Slot Antenna ◽  
Center Frequency ◽  
Ism Band ◽  
High Data ◽  
Implantable Antenna

A novel coplanar waveguide fed Industrial, Scientific, and Medical (ISM) band implantable crossed-type triangular slot antenna is proposed for biomedical applications. The antenna operates at the center frequency of 2450 MHz, which is in ISM band, to support GHz wideband communication for high-data rate implantable biomedical application. The size of the antenna is 78 mm3 (10 mm × 12 mm × 0.65 mm). The simulated and measured bandwidths are 7.9 and 8.2% at the resonant frequency of 2.45 GHz. The specific absorption rate distribution induced by the implantable antenna inside a human body tissue model is evaluated. The communication between the implanted antenna and external device is also examined. The proposed antenna has substantial merits such as miniaturization, lower return loss, better impedance matching, and high gain over other implanted antennas.

scholarly journals Wireless Technologies for Implantable Devices

Sensors ◽  
2020 ◽  
Vol 20 (16) ◽  
pp. 4604
Author(s):  
Bradley D. Nelson ◽  
Salil Sidharthan Karipott ◽  
Yvonne Wang ◽  
Keat Ghee Ong
Keyword(s):  
Data Collection ◽  
Medical Devices ◽  
Implantable Devices ◽  
Implantable Medical Devices ◽  
Medical Treatments ◽  
Good Opportunity ◽  
Wireless Technologies ◽  
Technical Challenges ◽  
The 1950S ◽  
And Control

Wireless technologies are incorporated in implantable devices since at least the 1950s. With remote data collection and control of implantable devices, these wireless technologies help researchers and clinicians to better understand diseases and to improve medical treatments. Today, wireless technologies are still more commonly used for research, with limited applications in a number of clinical implantable devices. Recent development and standardization of wireless technologies present a good opportunity for their wider use in other types of implantable devices, which will significantly improve the outcomes of many diseases or injuries. This review briefly describes some common wireless technologies and modern advancements, as well as their strengths and suitability for use in implantable medical devices. The applications of these wireless technologies in treatments of orthopedic and cardiovascular injuries and disorders are described. This review then concludes with a discussion on the technical challenges and potential solutions of implementing wireless technologies in implantable devices.

Detecting explosives and chemical weapons: a review of recent developments

Sensor Review ◽  
2015 ◽  
Vol 35 (3) ◽  
pp. 237-243 ◽  
Author(s):  
Robert Bogue
Keyword(s):  
New Technologies ◽  
Electrochemical Techniques ◽  
Health And Safety ◽  
Chemical Warfare Agents ◽  
Chemical Warfare ◽  
Optical Methods ◽  
Chemical Weapons ◽  
Content Type ◽  
Recent Developments ◽  
Warfare Agents

Purpose – The purpose of this paper is to provide details of recent developments in sensors for detecting explosives and chemical warfare agents. Design/methodology/approach – Following an introduction, this paper first discusses a selection of new sensing techniques aimed at detecting explosives and explosive devices. It then considers new developments in sensors for detecting chemical warfare agents. Brief concluding comments are drawn. Findings – This paper shows that a diversity of sensor technologies is being investigated, including various advanced optical methods, nanomaterials, microelectromechanical system, electronic noses, biosensors and electrochemical techniques, several of which offer levels of sensitivity in the parts-per-trillion region. These not only have the potential to yield improved devices for detecting explosives and chemical weapons but may also play a role in health care, environmental monitoring, drug detection and industrial health and safety. Originality/value – In an era of escalating terrorism and military conflicts, this provides a timely review of new technologies for detecting explosives and chemical warfare agents.

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