57 research outputs found
A liquid-junction-free reference electrode based on a PEDOT solid-contact and ionogel capping membrane
Liquid-junction-free reference electrodes were prepared on screen printed substrates using poly-3,4-ethylenedioxythiophene (PEDOT) as solid-contact and novel ionogels as capping membrane. The chemico-physical properties of the PEDOT layer were tuned by changing the electropolymerization media and electrodeposition technique. Particularly, electrodepositing PEDOT films potentiostatically or potentiodynamically impacted on the traces of the potential of the electrodes during the conditioning step. In addition, the choice of the capping membrane formulation, e.g., acrylate monomers, ionic liquid, cross-linkers and photo-initiators, was adjusted to obtain electrodes with properties almost equivalent of a standard reference electrode. Thus, calibration plots of Na+ ion-selective electrodes against the optimized solid-contact ionogel reference electrodes (SCI-REs) or against a double-liquid junction Ag/AgCl electrode did not present any significant difference. Such SCI-REs may provide an effective route to the generation of future low-cost components for potentiometric sensing strips
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Calendaring specification : interoperability of web-based calendar and Palm Pilot
Interoperability is the ability to enable different systems to work together and exchange data. Interoperability between different systems is achieved by using common standards and specifications. This paper talks about our research work on interoperability in Calendaring and Scheduling. There are many calendaring and scheduling software products on the market but only few of them are interoperable. The goal of my research was to make an existing web-based calendaring system ("The Wise Net" or TWN for short) interoperable with other calendaring systems, in particular, the Palm Pilot. A framework is developed for web based TWN calendar after understanding the interoperability issues that are dealt in other systems like Outlook, iPlanet calendar etc. After a complete understanding of the systems it was found that Outlook and other such popular calendaring systems are based on iCal and iTIP protocol standards. My aim was to discover how to make The Wise Net Calendar support these two protocols and develop a common specification for calendaring and scheduling that would support interoperability of TWN and Palm Pilot calendaring systems.
An initial working prototype is built to make the TWN calendar interoperable with palm pilot. This application synchronizes TWN calendar with the palm pilot calendar. A prototype is also built for synchronizing address book. TWN users can have a mirror image of their web based calendars on their palm pilots. Conduit Development Kit (CDK403) is used to develop the application. Conduits are software plug-ins for the Hotsync Manager application. They exchange and synchronize data between a desktop computer and a Palm OS platform handheld computer.2002 best estimate for issue date and commencement year based on available information
Sensitivity Of A Nonlinear TMD Effectiveness With Respect To Uncertainties In The Structural Parameters
Tuned mass dampers are found to be effective in enhancing structural performance of build-ings subjected to wind and seismic loads. This paper provides insights on the sensitivity of a Nonlinear Hysteretic Tuned Mass Damper (TMD) in mitigation of seismic induced vibrations under uncertainties present in structural parameters. A 2-DOF reduced ordered model of the structure and TMD is used to optimize the parameters of TMD when structure is subjected to Nonstationary excitations. A 3- dimensional 5-storey scaled down building is modeled in Opensees to have a high-fidelity model of the structure. Modified Bouc-Wen Hysteresis model is implemented in Opensees to mimic the performance of the Nonlinear TMD. Optimal design parameters of Nonlinear TMD obtained using the 2-DOF reduced ordered model are em-
When structural parameters are subjected to uncertainties, the effectiveness of the optimal Non-linear TMD is studied. Various sensitivity analysis techniques are employed in ranking the pa-rameters of the structure that are effecting the performance of the TMD. It is observed that, the damping in the structure and variation in the position of additional mass in orthogonal direc-tion to direction of motion of structure are parameters that are effecting the performance of TMD
Cyber Security Strategies for Protecting Health Management Systems
The study examines advanced cybersecurity strategies for health management systems focusing on emerging technologies involving blockchain, artificial intelligence, and the security frameworks of Internet of Medical Things. Health management systems are more increasingly exposed to cybersecurity threats; hence, techniques for the protection of sensitive patient data are strengthened. In this present work, an effort has been made to assess how blockchain can be used effectively for storing data securely and thus achieve a very high penetration of reducing unauthorized access attempts at 97%. AI-driven threat detection systems achieved a 94% strength in the detection of health systems threats while traditional systems were at 12%. Adaptive key rotation for device authentication within IoT security framework resulted in a 92% success rate in guarding IoMT network against a data breach. Therefore, the convergence of these three technologies indicates an all-encompassing multilayered approach to security with enhanced resilience and integrity of data. This area needs constant innovation in light of the security issues to keep up with health management systems that maintain privacy and reliability. Sector-specific adaptations will drive further light on these technologies and provide more robust cybersecurity within the health sector
Properties and customization of sensor materials for biomedical applications.
Low-power chemo- and biosensing devices capable of monitoring clinically important parameters in real time represent a great challenge in the analytical field as the issue of sensor calibration pertaining to keeping the response within an accurate calibration domain is particularly significant (1–4). Diagnostics, personal health, and related costs will also benefit from the introduction of sensors technology (5–7). In addition, with the introduction of Registration, Evaluation, Authorization, and Restriction of Chemical Substances (REACH) regulation, unraveling the cause–effect relationships in epidemiology studies will be of outmost importance to help establish reliable environmental policies aimed at protecting the health of individuals and communities (8–10). For instance, the effect of low concentration of toxic elements is seldom investigated as physicians do not have means to access the data (11)
Nuclear astrophysics with radioactive ions at FAIR
The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process, β-decay chains. These nuclei are attributed to the p and rp process. For all those processes, current research in nuclear astrophysics addresses the need for more precise reaction data involving radioactive isotopes. Depending on the particular reaction, direct or inverse kinematics, forward or time-reversed direction are investigated to determine or at least to constrain the desired reaction cross sections. The Facility for Antiproton and Ion Research (FAIR) will offer unique, unprecedented opportunities to investigate many of the important reactions. The high yield of radioactive isotopes, even far away from the valley of stability, allows the investigation of isotopes involved in processes as exotic as the r or rp processes
Effects of In, Sb and N Alloyed Capping on the Electronic Band Structures of Vertically Coupled InAs SK-SML Quantum Dot System
Study of AES and its Efficient Software Implementation
This work aims to familiarize the reader with the concepts behind AES or Advanced Encryption Standard. This work shall serve as a useful starting point for those who are interested in thinking along lines of software implementation of AES. To do this we shall go over some basic definitions in the context of AES and then explain AES at large from the perspective of various authors and papers. After this a brief discussion of an efficient software implementation of AES shall follow
Impact of GaAsN capping on strain and quantum confinement in vertically coupled InAs/GaAs quantum dots
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