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In der genossenschaftlichen FinanzGruppe werden neben Verbundunternehmen wie zum Beispiel der DZ Bank rund 45 bis 50 Genossenschaftsbanken von der künftigen Berichtspflicht nach der sogenannten CSR-Richtlinie betroffen sein. Dieser Artikel gibt Hinweise zu Auswirkungen der neuen Gesetzeslage, aber auch zu Chancen und Potenzialen. Diskutiert wird insbesondere, was das neue Gesetz bzw. der Regierungsentwurf von 2016 besagt, und was die Vorgaben konkret für Genossenschaftsbanken bedeuten. Der Beitrag diskutiert zudem Synergien, Chancen und Potenziale: Das Thema Nachhaltigkeit kann wertvolle Impulse für eine zielgerichtete Weiterentwicklung des eigenen Geschäftsmodells bieten, beispielsweise wie neue Kundengruppen und/oder neue Ertragspotenziale mit Hilfe von neuen Produkten beziehungsweise Geschäftsfeldern erschlossen werden können.
Eine Mitte November veröffentlichte EU-Richtlinie sieht vor, dass ab 2017 Unternehmen mit durchschnittlich mehr als 500 Mitarbeitern bestimmte Nachhaltigkeitsangaben im Lagebericht veröffentlichen müssen. Auf den ersten Blick scheint hier weiterer administrativer Ballast für die wenigen betroffenen Genossenschaftsbanken zu entstehen. Doch daraus ergeben sich für die Institute auch Chancen. Es lohnt sich zu prüfen, ob ein aktives Nachhaltigkeitsmanagement sinnvoll erscheint.
Nachhaltigkeit in der DNA
(2014)
Der demografische Wandel wird betriebs- und volkswirtschaftlich vielfach mit dem Fachkräftemangel in Zusammenhang gebracht. Diese Sichtweise scheint jedoch verkürzt. Die Alterung der Gesellschaft wird die Geschäftsmodelle von Finanzdienstleistern in den nächsten Jahren auf den Prüfstand stellen. Dies gilt vor allem für regionalverankerte Institute. Ein frühzeitiges Gegensteuern auf den Ebenen Strategie, Kunden- und Mitgliederstruktur, Produktportfolio sowie Marketing und Vertrieb kann jedoch den Markterfolg langfristig sichern.
Sind Mitglieder eine aussterbende Spezies? Der demografische Wandel zeigt dringenden Handlungsbedarf
(2012)
Die Coronakrise hat weltweit das Wirtschafts- und Gesellschaftsleben in bisher ungekannter Weise verändert. Die ohnehin bereits komplexen Herausforderungen in Zeiten des Klimawandels sind damit noch gestiegen. Genossenschaftliche Innovationsökosysteme können Lösungsansätze für die gravierenden Veränderungen im unternehmerischen, kommunalen und gesellschaftlichen Umfeld schaffen.
Massive Umwälzungen im Marktumfeld, verstärkt durch disruptive Technologien, stellen viele Unternehmen vor die existenzielle Frage, wie sie ihr etabliertes Geschäftsmodell zukunftsfähig weiterentwickeln können beziehungsweise wie sie sich unter Umständen grundlegend neu aufstellen müssen. Volatilität, Unsicherheit, Komplexität und Ambiguität (kurz VUKA) sind in diesem Kontext jene ungünstigen Begleiterscheinungen, die auch genossenschaftliche Unternehmen beeinflussen. Die vielfältigen Herausforderungen im Unternehmensumfeld, wie beispielsweise ungünstige demografische Entwicklungen, eine zunehmende Urbanisierung bei steigendem Bedarf an regionaler Daseinsvorsorge, Wettbewerbsdruck durch neue Geschäftsmodelle und Konkurrenten infolge der Künstlichen Intelligenz beziehungsweise Digitalisierung – zum Beispiel durch FinTechs – bedingen die Suche nach Orientierung, nach einem strategischen Kompass sowohl für Politik, Wirtschaft und Gesellschaft.
Am Beispiel der kanadischen Metropole Vancouver zeigt sich, dass auch in Zeiten einer immer komplexer werdenden Welt Wirtschaftswachstum, Nachhaltigkeit und Lebenswert positiv korrelieren können und innerhalb weniger Jahrzehnte regional umsetzbar sind. Die Stadt setzt dabei überwiegend auf zentral gesteuerte Aktivitäten der „Vancouver Economic Comission“, die alle gesellschaftlichen und unternehmerischen Anspruchsgruppen auf der Basis werteorientierten Handelns konsequent das Ziel verfolgen lässt, Vancouver zu einer global anerkannten Stadt für innovatives, kreatives und nachhaltiges Business zu entwickeln. Das Streben Vancouvers weist dabei Parallelen zu genossenschaftlichen Wesensprinzipien sowie zu im deutschsprachigen Raum bereits existierenden Ansätzen genossenschaftlicher Innovationsökosysteme auf. Letztere haben bereits an verschiedenen Stellen bewiesen, dass sie das Potenzial haben in Zeiten komplexer Herausforderungen zukunftsfähige Lösungen für die Menschen in der Region gemeinschaftlich zu entwickeln. Gleichzeitig lassen sich mittels innovativer Produkte, Dienstleistungen und Geschäftsmodelle neue Ertragsquellen erschließen.
Strategen genossenschaftlicher oder kooperativer Banken und Unternehmen sollten nachfolgende Fragen bewegen:
• Was können deutsche Städte, Gemeinden und Regionen von Vancouver hinsichtlich des Aufbaus und der Gestaltung dynamischer Innovationsökosysteme lernen?
• Welche Rolle können Genossenschaften in Innovationsökosystemen spielen?
• Wie könnten die Innovationsprinzipien, -methoden und -formate in der jeweiligen Region erfolgversprechend eingesetzt werden?
In den vergangenen Jahren ist das technische Gas Schwefelhexafluorid (SF6) immer wieder Gegenstand von Diskussionen des Klimaschutzes und der technischen Notwendigkeit für den Betrieb von Schaltanlagen gewesen und wird dies wohl auch noch für längere Zeit bleiben. Das Gas, welches sich aus einem Schwefelatom und sechs Fluoratomen zusammensetzt, wird seit Ende der sechziger 1960er Jahre in Schaltanlagen der Mittel- und Hochspannung eingesetzt. So günstig dessen Eigenschaften im technischen Einsatz auch sind, so klimaschädlich ist es beim Entweichen in die Atmosphäre. SF6 ist das Klimagas mit dem größten bekannten Treibhauspotenzial, es weist ein CO2-Äquivalent (GWP) von 23.900 und eine atmosphärische Lebensdauer von ca. 3.200 Jahren auf. Neben nur wenig verbliebenen Anwendungen in Industrie, Militär und Medizin kommt es heute hauptsächlich bei der elektrischen Energieversorgung als Isolier- und Lichtbogenlöschgas in Schaltanlagen von Übertragungs- und Verteilnetzen zum Einsatz. Grund genug die technische Notwendigkeit, mögliche Alternativen und Konsequenzen drohender Verbote zu diskutieren. In diesem Artikel werden zunächst die Grundlagen moderner SF6- Hochspannungsschaltanlagen vorgestellt, die Klimabelastung durch entweichendes SF6 evaluiert, ein Überblick über den Stand der Forschung gegeben und mögliche Konsequenzen eines Verbotes von Schwefelhexafluorid in der Energieversorgung diskutiert.
Background: Increasing awareness of the importance of evidence-based medicine is demonstrated not only by an increasing number of articles addressing it but also by a specialty-wide evidence-based medicine initiative. The authors critically analyzed the quality of reporting of randomized controlled trials published in this Journal over a 21-year period (1990 to 2010).
Methods: A hand search was conducted, including all issues of Plastic and Reconstructive Surgery from January of 1990 to December of 2010. All randomized controlled trials published during this time period were identified with the Cochrane decision tree for identification of randomized controlled trials. To assess the quality of reporting, a modification of the checklist of the Consolidated Standard of Reporting Trials Statement was used.
Results: Of 7121 original articles published from 1990 to 2010 in the Journal, 159 (2.23 percent) met the Cochrane criteria. A significant increase in the absolute number of randomized controlled trials was seen over the study period (p < 0.0001). The median quality of these trials from 1990 to 2010 was "fair," with a trend toward improved quality of reporting over time (p = 0.127).
Conclusions: A favorable trend is seen with respect to an increased number of published randomized controlled trials in Plastic and Reconstructive Surgery. Adherence to standard reporting guidelines is recommended, however, to further improve the quality of reporting. Consideration may be given to providing information regarding the quality of reporting in addition to the "level of evidence pyramid," thus facilitating critical appraisal.
It is the purpose of this paper to address ethical issues concerning the development and application of Assistive Technology at Workplaces (ATW). We shall give a concrete technical concept how such technology might be constructed and propose eight technical functions it should adopt in order to serve its purpose. Then, we discuss the normative questions why one should use ATW, and by what means. We argue that ATW is good to the extent that it ensures social inclusion and consider four normative domains in which its worth might consists in. In addition, we insist that ATW must satisfy two requirements of good workplaces, which we specify as (a) an exploitation restraint and (b) a duty of care.
Accelerated transformation of the society and industry through digi-talization, artificial intelligence and other emerging technologies has intensified the need for university graduates that are capable of rapidly finding breakthrough solutions to complex problems, and can successfully implement innovation con-cepts. However, there are only few universities making significant efforts to com-prehensively incorporate creative and systematic tools of TRIZ (theory of in-ventive problem solving) and KBI (knowledge-based innovation) into their de-gree structure. Engineering curricula offer little room for enhancing creativity and inventiveness by means of discipline‐specific subjects. Moreover, many ed-ucators mistakenly believe that students are either inherently creative, or will in-evitably obtain adequate problem-solving skills as a result of their university study. This paper discusses challenges of intelligent integration of TRIZ and KBI into university curricula. It advocates the need for development of standard guidelines and best-practice recommendations in order to facilitate sustainable education of ambitious, talented, and inventive specialists. Reflections of educa-tors that teach TRIZ and KBI to students from mechanical, electrical, process engineering, and business administration are presented.
Structured Innovation with TRIZ in Science and Industry - Creating Value for Customers and Society
(2016)
The design of control systems of concentrator photovoltaic power plants will be more challenging in the future. Reasons are cost pressure, the increasing size of power plants, and new applications for operation, monitoring and maintenance required by grid operators, manufacturers and plant operators. Concepts and products for fixed-mounted photovoltaic can only partly be adapted since control systems for concentrator photovoltaic are considerable more complex due to the required high accurate sun-tracking. In order to assure reliable operation during a lifetime of more than 20 years, robustness of the control system is one crucial design criteria. This work considers common engineering technics for robustness, safety and security. Potential failures of the control system are identified and their effects are analyzed. Different attack scenarios are investigated. Outcomes are design criteria that encounter both: failures of system components and malicious attacks on the control system of future concentrator photovoltaic power plants. Such design criteria are a transparent state management through all system layers, self-tests and update capabilities for security concerns. The findings enable future research to develop a more robust and secure control system for concentrator photovoltaics when implementing new functionalities in the next generation.
The communication system of a large-scale concentrator photovoltaic power plant is very challenging. Manufacturers are building power plants having thousands of sun tracking systems equipped with communication and distributed over a wide area. Research is necessary to build a scalable communication system enabling modern control strategies. This poster abstract describes the ongoing work on the development of a simulation model of such power plants in OMNeT++. The model uses the INET Framework to build a communication network based on Ethernet. First results and problems of timing and data transmission experiments are outlined. The model enables research on new communication and control approaches to improve functionality and efficiency of power plants based on concentrator photovoltaic technology.
The design of control systems in large-scale CPV power plants will be more challenging in the future. Reasons are the increasing size of power plants, the requirements of grid operators, new functions, and new technological trends in industrial automation or communication technology. Concepts and products from fixed-mounted PV can only partly be adopted since control systems for sun-tracking installations are considerable more complex due to the higher quantity of controllable entities. The objective of this paper is to deliver design considerations for next generation control systems. Therefore, the work identifies new applications of future control systems categorized into operation, monitoring and maintenance domains. The key-requirements of the technical system and the application layer are identified. In the resulting section, new strategies such as a more decentralized architecture are proposed and design criteria are derived. The contribution of this paper should allow manufacturers and research institutes to consider the design criteria in current development and to place further research on new functions and control strategies precisely.
The formation and analysis of ten microporous triazolyl isophthalate based MOFs, including nine isomorphous and one isostructural compound is presented. The compounds 1 M – 3 M with the general formula [ M ( R 1 - R 2 - trz - ia ) ] ∞ 3 ·x H 2 O (M 2+ = Co 2+ , Cu 2+ , Zn 2+ , Cd 2+ ; R 1 = H, Me; R 2 = 2py, 2pym, prz (2py = 2-pyridinyle; 2pym = 2-pyrimidinyle; prz = pyrazinyle)) crystallize with rtl topology. They are available as single crystals and also easily accessible in a multi-gram scale via refluxing the metal salts and the protonated ligands in a solvent. Their isomorphous structures facilitate the synthesis of heteronuclear MOFs; in case of 2 M , Co 2+ ions could be gradually substituted by Cu 2+ ions. The Co 2+ :Cu 2+ ratios were determined by ICP-OES spectroscopy, the distribution of Co 2+ and Cu 2+ in the crystalline samples are investigated by SEM-EDX analysis leading to the conclusions that Cu 2+ is more favorably incorporated into the framework compared to Co 2+ and, moreover, that the distribution of the two metal ions between the crystals and within the crystals is inhomogeneous if the crystals were grown slowly. The various compositions of the heteronuclear materials lead to different colors and the sorption properties for CO 2 and N 2 are dependent on the integrated metal ions.
Fast charging of lithium-ion batteries remains one of the most delicate challenges for the automotive industry, being seriously affected by the formation of lithium metal in the negative electrode. Here we present a physicochemical pseudo-3D model that explicitly includes the plating reaction as side reaction running in parallel to the main intercalation reaction. The thermodynamics of the plating reaction are modeled depending on temperature and ion concentration, which differs from the often-used assumption of a constant plating condition of 0 V anode potential. The reaction kinetics are described with an Arrhenius-type rate law parameterized from an extensive literature research. Re-intercalation of plated lithium was modeled to take place either via reverse plating (solution-mediated) or via an explicit interfacial reaction (surface-mediated). At low temperatures not only the main processes (intercalation and solid-state diffusion) become slow, but also the plating reaction itself becomes slower. Using this model, we are able to predict typical macroscopic experimental observables that are indicative of plating, that is, a voltage plateau during discharge and a voltage drop upon temperature increase. A spatiotemporal analysis of the internal cell states allows a quantitative insight into the competition between intercalation and plating. Finally, we calculate operation maps over a wide range of C-rates and temperatures that allow to assess plating propensity as function of operating condition.
Die Erfindung betrifft eine Photovoltaik-Stromversorgungsvorrichtung, insbesondere vom öffentlichen Stromnetz unabhängige Photovoltaik-Stromversorgungsvorrichtung, mit einem positiven (204) und einem negativen (206) Lastanschluss für den Anschluss einer elektrischen Last, mit einer Mehrzahl von photovoltaischen Zellen (104) und einer wiederaufladbaren Batterie (5), welche wenigstens zwei in Serie geschaltete Batteriezellen (112) umfasst. Nach der Erfindung sind die photovoltaischen Zellen (104) zu einer der Anzahl der Batteriezellen (112) entsprechenden Anzahl von seriell verbundenen Teilstrings (108) verschaltet und jeder Teilstring (108) ist mit einem positiven Teilstringanschluss mit einem Pluspol und mit einem negativen Teilstringanschluss mit einem Minuspol einer zugeordneten Batteriezelle (112) oder mehreren zugeordneten parallel geschalteten Batteriezellen (112) verbunden. Dabei kann jeder Teilstring (108) zwischen dem positiven und negativen Teilstringanschluss eine maximale Leerlaufspannung erzeugen, die kleiner oder gleich einer vorgegebenen Ladeschlussspannung der zugeordneten Batteriezelle (112) oder der zugeordneten parallel geschalteten Batteriezellen (112) ist. Weiterhin betrifft die Erfindung eine Schaltungsanordnung zum Laden einer wiederaufladbaren Batterie, die zur Realisierung einer derartigen Photovoltaik-Stromversorgungsvorrichtung geeignet ist.
Passive hybridization refers to a parallel connection of photovoltaic and battery cells on the direct current level without any active controllers or inverters. We present the first study of a lithium-ion battery cell connected in parallel to a string of four or five serially-connected photovoltaic cells. Experimental investigations were performed using a modified commercial photovoltaic module and a lithium titanate battery pouch cell, representing an overall 41.7 W-peak (photovoltaic)/36.8 W-hour (battery) passive hybrid system. Systematic and detailed monitoring of this system over periods of several days with different load scenarios was carried out. A scaled dynamic synthetic load representing a typical profile of a single-family house was successfully supplied with 100 % self-sufficiency over a period of two days. The system shows dynamic, fully passive self-regulation without maximum power point tracking and without battery management system. The feasibility of a photovoltaic/lithium-ion battery passive hybrid system could therefore be demonstrated.
Simulation-based degradation assessment of lithium-ion batteries in a hybrid electric vehicle
(2017)
Covert and Side-Channels have been known for a long time due to their versatile forms of appearance. For nearly every technical improvement or change in technology, such channels have been (re-)created or known methods have been adapted. For example the introduction of hyperthreading technology has introduced new possibilities for covert communication between malicious processes because they can now share the arithmetic logical unit (ALU) as well as the L1 and L2 cache which enables establishing multiple covert channels. Even virtualization which is known for its isolation of multiple machines is prone to covert and side-channel attacks due to the sharing of resources. Therefore itis not surprising that cloud computing is not immune to this kind of attacks. Even more, cloud computing with multiple, possibly competing users or customers using the same shared resources may elevate the risk of unwanted communication. In such a setting the ”air gap” between physical servers and networks disappears and only the means of isolation and virtual separation serve as a barrier between adversary and victim. In the work at hand we will provide a survey on weak spots an adversary trying to exfiltrate private data from target virtual machines could exploit in a cloud environment. We will evaluate the feasibility of example attacks and point out possible mitigation solutions if they exist.
Several cloud schedulers have been proposed in the literature with different optimization goals such as reducing power consumption, reducing the overall operational costs or decreasing response times. A less common goal is to enhance the system security by applying specific scheduling decisions. The security risk of covert channels is known for quite some time, but is now back in the focus of research because of the multitenant nature of cloud computing and the co-residency of several per-tenant virtual machines on the same physical machine. Especially several cache covert channels have been identified that aim to bypass a cloud infrastructure's sandboxing mechanism. For instance, cache covert channels like the one proposed by Xu et. al. use the idealistic scenario with two alternately running colluding processes in different VMs accessing the cache to transfer bits by measuring cache access time. Therefore, in this paper we present a cascaded cloud scheduler coined C 3 -Sched aiming at mitigating the threat of a leakage of customers data via cache covert channels by preventing processes to access cache lines alternately. At the same time we aim at maintaining the cloud performance and minimizing the global scheduling overhead.
Covert channels have been known for a long time because of their versatile forms of appearance. For nearly every technical improvement or change in technology, such channels have been (re-)created or known methods have been adapted. For example, the introduction of hyperthreading technology has introduced new possibilities for covert communication between malicious processes because they can now share the arithmetic logical unit as well as the L1 and L2 caches, which enable establishing multiple covert channels. Even virtualization, which is known for its isolation of multiple machines, is prone to covert- and side-channel attacks because of the sharing of resources. Therefore, it is not surprising that cloud computing is not immune to this kind of attacks. Moreover, cloud computing with multiple, possibly competing users or customers using the same shared resources may elevate the risk of illegitimate communication. In such a setting, the “air gap” between physical servers and networks disappears, and only the means of isolation and virtual separation serve as a barrier between adversary and victim. In the work at hand, we will provide a survey on vulnerable spots that an adversary could exploit trying to exfiltrate private data from target virtual machines through covert channels in a cloud environment. We will evaluate the feasibility of example attacks and point out proposed mitigation solutions in case they exist.
In this paper an RFID/NFC (ISO 15693 standard) based inductively powered passive SoC (system on chip) for biomedical applications is presented. A brief overview of the system design, layout techniques and verification method is dis-cussed here. The SoC includes an integrated 32 bit microcontroller, sensor interface circuit, analog to digital converter, integrated RAM, ROM and some other peripherals required for the complete passive operation. The entire chip is realized in CMOS 0.18 μm technology with a chip area of 1.52mm x 3.24 mm.
An Ultra-Low-Power RFID/NFC Frontend IC Using 0.18 μm CMOS Technology for Passive Tag Applications
(2018)
Battery-less passive sensor tags based on RFID or NFC technology have achieved much popularity in recent times. Passive tags are widely used for various applications like inventory control or in biotelemetry. In this paper, we present a new RFID/NFC frontend IC (integrated circuit) for 13.56 MHz passive tag applications. The design of the frontend IC is compatible with the standard ISO 15693/NFC 5. The paper discusses the analog design part in details with a brief overview of the digital interface and some of the critical measured parameters. A novel approach is adopted for the demodulator design, to demodulate the 10% ASK (amplitude shift keying) signal. The demodulator circuit consists of a comparator designed with a preset offset voltage. The comparator circuit design is discussed in detail. The power consumption of the bandgap reference circuit is used as the load for the envelope detection of the ASK modulated signal. The sub-threshold operation and low-supply-voltage are used extensively in the analog design—to keep the power consumption low. The IC was fabricated using 0.18 μm CMOS technology in a die area of 1.5 mm × 1.5 mm and an effective area of 0.7 mm2. The minimum supply voltage desired is 1.2 V, for which the total power consumption is 107 μW. The analog part of the design consumes only 36 μW, which is low in comparison to other contemporary passive tags ICs. Eventually, a passive tag is developed using the frontend IC, a microcontroller, a temperature and a pressure sensor. A smart NFC device is used to readout the sensor data from the tag employing an Android-based application software. The measurement results demonstrate the full passive operational capability. The IC is suitable for low-power and low-cost industrial or biomedical battery-less sensor applications. A figure-of-merit (FOM) is proposed in this paper which is taken as a reference for comparison with other related state-of-the-art researches.
Design of a Programmable Passive SoC for Biomedical Applications Using RFID ISO 15693/NFC5 Interface
(2018)
Low power, low cost inductively powered passive biotelemetry system involving fully customized RFID/NFC interface base SoC has gained popularity in the last decades. However, most of the SoCs developed are application specific and lacks either on-chip computational or sensor readout capability. In this paper, we present design details of a programmable passive SoC in compliance with ISO 15693/NFC5 standard for biomedical applications. The integrated system consists of a 32-bit microcontroller, a sensor readout circuit, a 12-bit SAR type ADC, 16 kB RAM, 16 kB ROM and other digital peripherals. The design is implemented in a 0.18 µm CMOS technology and used a die area of 1.52 mm × 3.24 mm. The simulated maximum power consumption of the analog block is 592 µW. The number of external components required by the SoC is limited to an external memory device, sensors, antenna and some passive components. The external memory device contains the application specific firmware. Based on the application, the firmware can be modified accordingly. The SoC design is suitable for medical implants to measure physiological parameters like temperature, pressure or ECG. As an application example, the authors have proposed a bioimplant to measure arterial blood pressure for patients suffering from Peripheral Artery Disease (PAD).