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The paper describes a new electronic conditioning circuit based on the current-processing technique for accurate and reliable humidity measurement, without post-processing requirements. Pseudobrookite nanocrystalline (Fe2TiO5) thick film was used as capacitive humidity transducer in the proposed design. The interface integrated circuit was realized in TSMC 0.18 μm CMOS technology, but commercial devices were used for practical realization. The sensing principle of the sensor was obtained by converting the information on environment humidity into a frequency variable square-wave electric current signal. The proposed solution features high linearity, insensitivity to temperature, as well as low power consumption. The sensor has a linear function with relative humidity in the range of Relative Humidity (RH) 30-90 %, error below 1.5 %, and sensitivity 8.3 x 1014 Hz/F evaluated over the full range of changes. A fast recovery without the need of any refreshing methods was observed with a change in RH. The total power dissipation of readout circuitry was 1 mW.

This chapter examines the modeling and simulation of energy storage (battery, flywheel, etc.) systems interfaced to the power grid by using power electronic device, like chopper module, Rectifier module, and filter circuits, which are essential to the load balance between supply and demand, and to eliminate harmonics and to ensure efficient, cost effective, and reliable operations. Energy storage system in power grid is the same as memory in computer system. Energy efficiency is a key performance indicator for energy storage system. The energy storage system is the most promising component to enhance the system reliability and flexibility.

In this research, a new power converter has been presented for plug-in electric vehicle applications, which is derived from the conventional secondary ended primary inductance converter (SE...

In high renewable penetrated microgrids, energy storage systems (ESSs) play key roles for various functionalities. In this chapter, the control and application of energy storage systems in the microgrids system are reviewed and introduced. First, the categories of energy storage systems utilized in microgrids and the power electronic interface between energy storage systems and microgrid systems are introduced. Then a comprehensive review of control methods of ESSs in islanded microgrids is reviewed. The functionalities include SoC balancing among multiple ESSs, coordination among renewable energy resources and ESSs, etc. In grid-connected microgrids, the utilization of ESSs for grid ancillary services, especially frequency and voltage regulation are introduced. The future research trend and opportunities are also discussed.

This work describes the design and development of a gas sensor module, using QMBs (Quartz Crystal Microbalances) as sensing element, for E-health applications (e.g. Exhaled Breath Analysis). The developed module can be used with other modules, as an array of gas sensors, in a master-slave architecture based on an I2C communication bus. A custom electronic interface has been developed to properly drive the QMBs and a microcontroller has been used to read the output signal: the module is able to use QMBs with a fundamental resonant frequency ranging from 20 to 50 MHz, with a sensing resolution of about 1 Hz. The performances of the sensing modules have been investigated with a particular focus on sensor's responses to typical Relative Humidity and Temperature levels of exhaled breath samples

This paper proposes a Zeta-derived non-isolated single-stage power electronic interface for on-board application of plug-in electric vehicles, which provides all modes (plug-in charging, propulsion...

A detection platform based on non-linear Giant Magnetoimpedance Effect was analyzed for the design of a contactless and low-cost detector of magnetic nanoparticles. The sensor consists of two soft magnetic amorphous wires (Co66Fe2Si13B15Cr4, 1.5 cm in length) placed in parallel and connected electrically in series. Initially, a simple voltage divider was employed to characterize the variations of the first, V1fand second harmonic, V2f, voltages. Their response was analyzed under the effect of the remnant magnetic field generated by different amounts of Fe3O4 nanoparticles (mean diameter 140 nm) as a function of an external magnetic field, H. Due to the larger relative variations showed by V2f, the second harmonic was chosen for the final prototype development. An electronic interface was designed for both current excitation and V2f detection. The designed detection platform, characterized by high detection sensitivity, low-cost, portable, and reusable features, can be employed to efficiently detect magnetic nanoparticles. The work has been performed within the framework of the project MAT 2017-83631-C3-2R (Spanish Ministerio de Ciencia e Innovación) and AEI/FEDER (grant PID2019-107258RB-C32). The soft magnetic wire was kindly provided by Dr. A. Mitra, from NDE & Magnetic Materials Group, CSIR-National Metallurgical Laboratory, Jamshedpur 831007, India. The authors would also like to acknowledge the use of 'Servicio General de Apoyo a la Investigación-SAI', Universidad de Zaragoza for the TEM microscopy service.

Purpose Radiation therapy (RT)–specific aspects of a patient’s cancer care commonly are documented and scheduled through a radiation oncology electronic health record (rEHR). However, patients who receive RT also receive multidisciplinary care from providers who use the hospital EHR (hEHR). We created an electronic interface to integrate our hEHR and rEHR to improve communication of the RT aspects of care between our department and the rest of the hospital. The objective of this study was to assess the impact of rEHR and hEHR integration on the accessibility of the RT-specific aspects of patient care to providers. Methods and Materials We performed a preintegration and postintegration survey of 175 staff members at our academic cancer center. Respondents rated the importance and accessibility of several RT encounters and documents on a Likert scale. The Wilcoxon-Mann-Whitney, χ2, and Fisher’s exact tests were used to compare preintegration and postintegration responses. Results There were 32 and 19 responses to the pre- and postintegration surveys, respectively. rEHR items most commonly reported to be at least moderately important were the dates of first treatment (n = 29 [91%]), last treatment (n = 29 [91%]), brachytherapy (n = 22 [69%]), radiosurgery (n = 22 [69%]), and computed tomography simulation (n = 21 [66%]). A drastic improvement was found in most items made visible in the hEHR through the interface. Conclusion By integrating our hEHR and rEHR, we improved the communication of patient care between the RT department and the multidisciplinary team. Institutions should pursue and support integration of the EHRs to improve the quality of care provided to patients with cancer.

Recently, significant activities have been focused on the research of human identification and tracking systems in different environments. In this context, this paper describes a novel design and construction methodology for a low-cost intelligent carpet system for footstep detection. The carpet consists of activated carbon nonwoven material sandwiched between a pair of cross-aligned conductive wires to form in situ piezoresistive sensors. The assembly is externally covered with textiles to form a regular carpet. An electronic interface device and data treatment system is developed to monitor human footstep action-based piezoresistive changes observed within the carpet. The system is further practically validated for human footstep detection, localization, and counting. To demonstrate the potential application in human foot-step-based tracking, seven Gait features were extracted from piezoresistance change profile formed by human walking on the carpet and subsequently, a walking signature has been introduced. It is anticipated that such an intelligent carpet that retains its flexibility and textile aesthetics can be a good alternative for the conventional textile carpet with auxiliary functionality and added value.

Recently, the automobile industry has begun applying an increasing number of systems to recycling wasted energy. One area that demands further research is the recycling and storing of energy in car suspension systems, especially in terms of developing an electronic interface to keep energy flowing bidirectionally. An electronic interface was designed to facilitate control of regenerative forces and store energy after the rectification process. The electronic interface was designed to be a symmetrical-bridgeless boost converter, due to this mechanism having few components and requiring little control effort. The converter was created such that it kept the current and voltage in phase for the maximum power factor. The input into this controller was the generator voltage used to determine the polarity of the pulse-width modulation, considering external road disturbances. Thus, this combination of converter and controller was able to replace an active controller. Variable resistance could be further controlled to manipulate the suspension damping force.

In this paper, the design of voltage regulation controller for 400 Hz four-leg matrix converter has addressed for varying load conditions. 400 Hz frequency converters are frequently in use across naval, aerospace, and military applications, those applications are regularly requiring a precise output voltage regulation with a strict performance specification. Four-leg matrix converter has introduced as an electronic interface between 50/60 Hz power sources and 400 Hz loads, with added the attractive feature of working under sever unbalanced and non- linear loads. However, the voltage regulation of 400 Hz is challenging due to limited control bandwidth, and traditional controllers have failed alone to achieve a proper voltage regulation, so repetitive controller proposed as a critical solution to the control problem. The repetitive controller has achieved a precise voltage regulation, steady-state errors reduction with higher stability. Simulink simulation represented as well to validate the repetitive controller effectiveness.

This paper presents, an electronic interface to measure the concentration of urea in aqueous solution. The interface uses a simple, cost effective, two electrode type impedeometric urea sensor already reported by the author. This paper discusses, measurement technique and range changing algorithm. The hardware implemented experimental results are also presented.

Extended-gate field-effect transistor (EGFET) is an electronic interface originally developed as a substitute for an ion-sensitive field-effect transistor (ISFET). Although the literature shows that commercial off-the-shelf components are widely used for biosensor fabrication, studies on electronic interfaces are still scarce (e.g., noise processes, scaling). Therefore, the incorporation of a custom EGFET can lead to biosensors with optimized performance. In this paper, the design and characterization of a transistor association (TA)-based EGFET was investigated. Prototypes were manufactured using a 130 nm standard complementary metal-oxide semiconductor (CMOS) process and compared with devices presented in recent literature. A DC equivalence with the counterpart involving a single equivalent transistor was observed. Experimental results showed a power consumption of 24.99 mW at 1.2 V supply voltage with a minimum die area of 0.685 &times, 1.2 mm2. The higher aspect ratio devices required a proportionally increased die area and power consumption. Conversely, the input-referred noise showed an opposite trend with a minimum of 176.4 nVrms over the 0.1 to 10 Hz frequency band for a higher aspect ratio. EGFET as a pH sensor presented further validation of the design with an average voltage sensitivity of 50.3 mV/pH, a maximum current sensitivity of 15.71 mA1/2/pH, a linearity higher than 99.9%, and the possibility of operating at a lower noise level with a compact design and a low complexity.

With a continuous increase installation of PV systems, the grid is facing more and more challenges. Thus, string grid regulations/codes should be followed when installing PV systems. In this chapter, the grid-interconnection standards are firstly reviewed, and in order to cater for more wide-scale deployments of PV systems, demands toward smart PV systems are discussed. As the core of the PV power conversion is its power electronic interface, the chapter thus reviews the power converter technologies for grid-connected applications, covering a wide range of power ratings (several hundred watts to several hundred kilowatts), where the trend for high-voltage and high-power PV applications is presented.

Nowadays, the environmental meteorological monitoring is becoming a primary need in many fields of human activity. Continuous and accurate measurements are often required also in absence of local and fixed stations. This scenario leads to the development of low cost portable systems and to the design of innovative architectures, thanks to the availability of new technologies and sensors. The full system here proposed - easily integrable on a CMOS technology - is based on a hot wire anemometer, provided by Telecontrolli SME , and a suitable heater feedback that achieves, thanks to a dedicated algorithm, a novel portable solution with a robust design, without moving parts and small dimensions. It is suitable to operate up to 50C and provides accurate wind speed and direction measurement.

In this work, we present an innovative low cost sensor and algorithm for the monitoring and measurement of solar irradiance. This parameter is usually estimated using pyranometers, often based on thermopile. They are quite expensive, also because need additional hardware for data acquisition and manipulation as well as non-negligible installation costs. The system architecture and novel algorithm here proposed employ small PhotoVoltaic (PV) cells and a digital sensor interface. Moreover, the logic section permits to tilt the sensor allowing to track the sun with improved accuracy.

The authors here propose, for the first time, an automatic analog interface for differential capacitance estimation, able to reveal and quantify both low and high (full-range) capacitive variations. The working principle is based on a modified De-Sauty AC bridge configuration where two differential capacitances and two resistances are employed, one of which is implemented by a Voltage Controlled Resistor (VCR). Through a suitable feedback loop, a very accurate estimation over the complete range of the differential capacitance variation is possible, while the bridge allows a continuous differential capacitance evaluation without the need of knowing the accurate value of the sensor baseline and/or its variation range. A general but very simple formula, considering both the “autobalancing” and the “out-of-equilibrium” ranges, is also given. Theoretical, experimental and simulated results are in a very good agreement. Sensitivity and resolution values, typical of sensors and their interfaces, have been determined in a practical case, showing satisfactory values.

International audience; Mobility-as-a-service (MaaS) schemes combining information about and access to multiple means of transportation through a single electronic interface require transportation operators sharing data. In doing so, they coopete: they compete over rides while they collaborate to build a service that can bring them all more rides. Building on microeconomic theory and the experiences of the existing MaaS schemes, we show that, although every operator has incentives to share data if a critical mass of coopetitors do, the coopetitive dynamics of data sharing can lead to multiple mixes of operators. In some mixes, certain operators will not decide not to participate.; Les modèles "mobility-as-a-service" (MaaS) combinant l'information sur et l'accès à plusieurs moyens de transport au sein d'une même interphase numérique requièrent que les opérateurs de transport partagent leurs données. Par ce biais, ils rentrent dans une dynamique coopétitive : ils sont en competition pour gagner des courses et ils collaborent pour produire un service qui peut leur apporter plus de courses à tous. En nous appuyant sur la théorie microéconomique et les experiences existantes de modèles MaaS, on montre que, alors que tout opérateur a des incitations à partager ses données si une masse critique de coopétiteurs le fait aussi, les dynamiques de la coopétition via le partage de données peuvent conduire à plusieurs combinaisons d'opérateurs. Dans certaines combinaisons certains opérateurs vont décider de ne pas participer.

Here we show, Do-It-Yourself (DIY) integration strategy of a low-cost paper sensor based flexible electronic system, using anisotropic conductive tape. The whole assembly is housed inside the cap of a prescription drug container to continuously monitor health of pills. These flexible modular decal sensors are connected with a central flexible decal electronic interface. Additionally, this simple easy-to-use DIY based integration strategy gives the flexibility to develop customized versions of the system depending on the requirements of different applications. This add-on system is easy to install or remove allowing easier implementation for practical use to monitor pill health using Internet-of-Things devices.

In this paper the development and realization of a compact measurement system for ballisto-cardiogram recording is reported. The system is based on a Linkit ONE, an ARDUINO-like embedded system, and an electronic interface specifically designed as a “Shield” configuration to reduce the dimensions of the entire system. Measurement is electrodeless. Respiration and heartbeat frequency is acquired in the seated position, using a quasi-piezoelectric sensor, made of an electroactive polymer material (EMFIT). The sensing material is in the shape of a small flat oval placed directly on the chair and connected with the measurement system. Preliminary results are reported and discussed.

This paper presents an advanced voltammetric system to be used as electronic tongue for liquid and gas analysis. It has been designed to be more flexible and accurate with respect to other existing and similar systems. It features improved electronics and additional operative conditions. Among others these include the possibility to optically excite the solution and to treat the output signal by a differentiation process in order to better evidence the existence of small details in the response curve. Finally by the same type of tongue preliminary results are shown dealing with O2 and CO2 concentration measurements in appropriate solutions.

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd Based on circuit simulations, this paper investigates a concept for a power electronic interface circuit for MEMS electrostatic energy harvesters. Two ordinary overlap-varying transducers are first electrically configured as a symmetric voltage doublers which enables the device to self-start from an initially low bias. The harvesting system is then reconfigured to couple with a buck-boost DC-DC converter in order to maximize the power delivered to an electronic load. The losses of electronic components due to diode voltage drop and parasitic resistance of inductors are taken into account for a feasibility investigation. Dependence of the maximum output power on inductance and switching frequency is explored.

This paper aims to develop a hybrid saxophone interface with real instrument and an electronic interface that enables to control sound and a multimedia data. Telesaxophone have developed for saxophone player with a dial sensor and several button sensors and original neck with mouthpiece combined electric interface produced by physical computing with Arduino11. We describe regarding software/hardware systems with Arduino and analysis the saxophone mechanism for interface development and demonstrate its performance of multimedia data control. In this paper, we have presented to find versatile multi-instruments that to control musical expression and various multimedia works over the trend of a new paradigm in art.

Current implantable electrodes facilitate only a low cellular infiltration impairing the long-term integration into the host’s tissue. To accomplish a seamless electronic-tissue interface, conductive three-dimensional (3D) scaffolds were generated by carbonization of electro-spun fiber meshes. When introducing NaCl particles as porogens, tailored tissue-like electrodes were generated. Characterization of the porous 3D fiber electrodes demonstrated improved material and electrical characteristics compared to standard carbon fiber meshes or flat gold surfaces. The feasibility of the porous 3D electrodes was assessed by cell culture experiments, confirming the migration of cells into the electrode and the formation of contracting cardiomyocyte clusters. Finally, a complex cardiac co-culture system proved the integration of the tissue into the 3D electrode in long-term culture of 7 weeks. These results strengthen the development of tissue-like 3D scaffolds as alternative to two-dimensional (2D) electrodes.

The mechanisms to communicate emotions have dramatically changed in the last 10 years with social networks, where users massively communicate their emotional states by using the Internet. However, people with socialization problems have difficulty expressing their emotions verbally or interpreting the environment and providing an appropriate emotional response. In this paper, a novel solution called the Emotion-Bracelet is presented that combines a hardware device and a software system. The proposed approach identifies the polarity and emotional intensity of texts published on a social network site by performing real-time processing using a web service. It also shows emotions with a LED matrix using five emoticons that represent positive, very positive, negative, very negative, and neutral states. The Emotion-Bracelet is designed to help people express their emotions in a non-intrusive way, thereby expanding the social aspect of human emotions.

This paper presents a brief preliminary research done on various control strategies adopted for load/power sharing( power flow control) in a power electronic interface (inverter) integrated micro grid.

This work deals with the development of an electronic system for portable electrochemical sensing. The presented acquisition module is able to operate in amperometry, voltammetry and potentiometry modes. The system can be optionally linked to a mobile readout device (as smartphone, tablet, etc.) using the Smart Bluetooth 4.1. The system is suitable for a wide range of portable and wearable applications spreading from biomedical to environmental monitoring. The system features small sizes, small weight, and ultra-low power consumption.

A thermal flow sensor including sensing structures and a read-out interface in a single chip is proposed. The sensing structure is a microcalorimeter based on a double heater configuration while the low noise electronic interface performs signal reading and offset compensation. The device has been fabricated with a commercial CMOS process followed by a post-processing procedure. Post-processing has been customized in order to increase the thermal insulation of the sensing structures from the silicon substrate and improve the heat exchange between the sensor and the gas flow. Device characterization confirms the effectiveness of the proposed fabrication method in increasing the sensitivity at constant power consumption without affecting the dynamic range. Display Omitted A smart thermal flow sensor for battery-powered applications is proposed.Double heater calorimeter and low noise electronic interface are integrated into a single chip.The device is fabricated with a custom micromachining post-processing applied to a CMOS process.The proposed fabrication method improves sensitivity without affecting the dynamic range.

This paper presents a comprehensive study of the design aspects of eddy-current displacement sensor (ECS) systems. In accordance with the sensor analysis presented in this paper, design strategies to compensate for important sensor imperfections are recommended. To this end, the challenges that are associated with ECS interfaces are identified, with focus on advanced industrial applications. This paper also provides a technical overview of the design advances of ECS interfaces proposed in the last decade and evaluates their pros and cons. Recently reported interface solutions for demanding industrial applications with respect to high resolution, stability, bandwidth, and low power consumption, at a sufficiently high excitation frequency, are addressed in more detail.

BACKGROUND: Cancer in children, and specifically cancer requiring autologous stem cell transplantation, is rare. As a consequence, though, experience with pediatric stem cell apheresis collections is limited. Challenges of apheresis in small children (

A setup for visualizing the internal structure of media, which partially scatter radiation, using the spectral domain optical coherence tomography (OCT) method is described. The special complex of electron interface systems, ensuring the operating speed of the spectral domain OCT system at a level of 10000 A-scans (longitudinal scans along the depth) per second, high dynamic imaging range, and complete suppression of coherent noise peculiar to the spectral method has been designed to eliminate artifacts characteristic of this method.

The paper deals with an electronic interface built on Arduino electronics. The interface allows controlling several pneumatic grippers using a PC. The grippers are connected to the PC using the mentioned interface which is connected to PC through USB port. The authors are continuing a work developed since 2005 when a LPT electronic interface was developed.

This paper presents a new vibration driven energy harvesting device with an additional synchronized switching interface for optimizing the power transfer from the energy harvester to a storage element. The energy transducer consists of a piezoelectric energy harvester, which is designed to achieve a uniform stress distribution on the whole generator structure. A novel interface circuitry, based on the initial energy injection described by Lallart et. all. [1], is added to the system. It enables a harvesting process that is almost independent of the load and allows an almost ideal energy storage process. The results of parameter studies for an optimal generator design as well as first measurement results obtained with the direct initial energy injection circuitry are presented and discussed in the presentation. The results show that an efficiency benefit by a factor of 3, compared to standard devices can be achieved by the presented device.

In calculating the total cost of ownership (TCO), the importance of product value cannot be overlooked. Fluid management solutions from ARO, a brand of Ingersoll Rand, has come up with a solution to help optimize costs and reduce downtime through the combination of the new ARO Controller and EXP Electronic Interface pumps.

The issue of renewable energy is becoming significant due to increasing power demand, instability of the rising oil prices and environmental problems. Among the various renewable energy sources, fuel cell is gaining more popularity due to their higher efficiency, cleanliness and cost-effective supply of power demanded by the consumers. This paper presents a comprehensive review of different fuel cell technologies with their working principle, advantages, disadvantages and suitability of applications for residential/grid-connected system, transportation, industries and commercial applications. Development of mathematical model of fuel cell required for simulation study is discussed. This paper also focuses on the necessity of a suitable power-conditioning unit required to interface the fuel cell system with standalone/grid applications.

PURPOSE: Chromatic contrast is a technique used in some areas of medicine to provide better visualization of biological tissues. Based on principles of color composition, a new illumination system was constructed using colored emitting diodes to reproduce the spectral range of visible light. This technique was devised to be used in indirect ophthalmoscopes to improve the visualization of the posterior segment of the eye. METHODS: The original illumination system of a general purpose indirect ophthalmoscope was substituted by a system of color-emitting diodes. RESULTS: Using an electronic interface it was possible to control the intensity of the color lights and therefore generate different wavelengths in the visible spectrum of the light. Preliminary tests undertaken in a mechanical model of the human eye generated very clear and homogenous colors. However in vivo examinations with patients were performed in our laboratory at the IFSC-USP and UNIFESP, and obtained the preliminary results show the possibilities of the chromatic contrast technique, and may represent in the future a differential in the analyses of the posterior segment of the eye. CONCLUSION: The use of color-emitting diodes to reproduce the spectral range of the visible light in indirect ophthalmoscopes seems to be a promising technological advance in the fundoscopy of the eye. This is an innovation that can yield better quality examinations with indirect ophthalmoscopes.

This paper reads the significance of the countenance—that is, the eighteenth-century catchall term for the collective range of facial expressions—as a progenitor of the electronic interface. Beginning with Jane Austen’s Sense and Sensibility, and touching on a number of lesser-known sentimental novels, this paper focuses on Charlotte Smith’s Emmeline: The Orphan of the Castle as a particularly fruitful site for examining the proliferation of countenances in sentimental novels. Emmeline demonstrates that certain characters valorize the transparency of countenance while others take a critical stance towards that same transparency. Such critical stances point to the fact that countenances are mediators, and they are never transparent or without “noise.” The purpose of the supposedly transparent countenance, like a seamless interface, was to provide quick and easy access to a character’s psychological depth. Novelists, like characters, were compelled to provide such instant access to the hearts and minds of their characters. While meeting this demand for depth of character, novelists such as Charlotte Smith used compulsory narration, a means of highlighting the opacity of me

Objectives: To evaluate the effectiveness of an integrated and dynamic electronic decision support system for management of acute asthma in the ED. Methods: A randomized trial was conducted comparing clinician performance using this electronic interface compared with paper documentation in a simulation scenario. The outcomes were documentation of asthma-related information and consultation times. Results: Use of this electronic interface was associated with significantly higher rates of documentation in 7 out of 10 variables, including provision of written short-term asthma management plans. After adjustment for participant seniority, there was no significant difference in consultation times. Conclusion: In a simulation trial, use of this electronic interface was associated with improvements in clinical and discharge documentation. Further studies are required to test this prototype in clinical practice.

Methods for the chemical and sensorial evaluation of olive oil are frequently changed and tuned to oppose the increasingly sophisticated frauds. Although a plethora of promising alternatives has been developed, chromatographic techniques remain the more reliable yet, even at the expense of their related execution time and costs. In perspective of a continuous increment in the number of the analyses as a result of the global market, more rapid and effective methods to guarantee the safety of the olive oil trade are required. In this study, a novel artificial sensorial system, based on gas and liquid analysis, has been employed to deal with olive oil genuineness and authenticity issues. Despite these sensors having been widely used in the field of food science, the innovative electronic interface of the device is able to provide a higher reproducibility and sensitivity of the analysis. The multi-parametric platform demonstrated the capability to evaluate the organoleptic properties of extra-virgin olive oils as well as to highlight the presence of adulterants at blending concentrations usually not detectable through other methods.

A new electronic interface for inductive sensors is presented. The proposed circuit is basically a current-feedback operational-amplifier (CFOA)-based sinusoidal oscillator circuit. The circuit uses only one externally connected inductor and exploits to advantage the internal poles of the CFOA. Sinusoidal oscillation at frequency of 122.1 MHz was obtained using the AD844 CFOA and an inductor of inductance = 0.14 μH with peak-to-peak output voltage = 700 mV.

This paper introduces the Smart Electronic Interface for Web Enabled Ocean Sensor Systems of the NeXOS project as example how interoperable standards help, to facilitate the creation of an infrastructure for sharing oceanographic observation data and the integration of sensor into marine installations. A given kind of sensor may be deployed on various platforms such as floats, gliders or moorings, and thus must be integrated with different data acquisition systems. Simplifying the integration process in existing or newly established observing systems would have benefit system operators and is important for the broader application of different sensors. Several sensor systems will be developed in NeXOS project for specific technologies and monitoring strategies such as: ocean passive acoustics, ocean optics, and EAF monitoring (Ecosystem Approach to Fisheries), that will provide an integrated, technologically coherent system for multi-scale, multi-parameter monitoring of the oceans. For all these sensors system, the Smart Electronic Interface for Sensors and Instruments (SEISI) is developed, which is a set of standards and functionalities to enable Web-based sharing, discovery, exchange and processing of sensor observations, and operation of sensor systems. The architecture will satisfy international standards, defined by ISO, OGC, and the INSPIRE directive, to enable integration of marine sensors with existing observing systems. The SEISI will provide a multifunctional interface for many types of current sensors and instruments as well as the new multi-parameter sensor systems, and a standard interface for existing observing systems platforms such as: cabled observatories, buoys, gliders or Ferryboxes on ship or vessel of opportunity. To achieve the compatibility with all these platforms, the sensor systems developed in NeXOS based on SEISI will be designed to accomplish two main requirements of these platforms regarding the communication bandwidth and the power consumption.

cited By 5; International audience; Nonlinear techniques consisting in a switching device triggering on maximum and minimum displacements have demonstrated superior performance for piezoelectric harvesters excited with a monochromatic force allowing a harvested energy gain of 9 compared to the standard technique. However, until now the performance of switched-interface piezoelectric harvesters under broadband and/or random force excitations has barely been studied. In this study, we investigate a periodic switching strategy to simplify the problem, and derive a mathematical model based on cyclostationary stochastic theory and the concepts of self-sampling and self-aliasing. From this model, the harvester performance under a broadband force excitation can be obtained efficiently from the force spectral density. The model has been verified by experiments and applied to several force excitation cases in the form of model spectral functions. The harvester is found to have a better performance than for a resistive load when the switching frequency is slightly less than twice the harvester resonance frequency. The effect of the coupling factor k2 and the mechanical quality factor QM is also discussed in detail to give a reference for the harvester design. An interesting result is that the harvester will perform differently for different choices of k2 and QM even when the values of k2QM are the same. © 2014 IEEE.

A new electronic interface circuit is presented. The circuit is built around a single plus-type second-generation current conveyor (CCII+) and can be used with resistive, capacitive and resistive-capacitive sensors. Experimental results are provided.

During laparoscopic surgery, the operator relies on the skills of an assistant, particularly during laparoscope manipulation. If possible, the surgeon would prefer to hold the scope while at the same time operating with both hands similar to open surgery conditions. A palm electronic interface (Lapman) was developed to allow remote control of a laparoscope manipulator and to make laparoscope displacement and instrument manipulation synchronous for the surgeon. It was tested in gynecologic surgery, where it restored vision and instrument manipulation and allowed laparoscopic surgery to be performed with fewer personnel.

The meander proposes a fruitful execution for IoT (Internet of Things) utilized for checking and controlling the home machines by techniques for World Wide Web. Home computerization framework uses the adaptable contraptions as a UI. They can chat with home robotization organize through an Internet entry, by procedures for low power correspondence conventions like Zigbee, Wi-Fi. This meander goes for controlling home gadgets by techniques for Smartphone utilizing Wi-Fi as communication custom and raspberry pi as server framework. The client here will move coordinate with the framework through an electronic interface over the web, while home mechanical congregations like lights, fan and entry jar are remotely controlled through direct site page. An additional fragment that updates the segment of security from chimney calamities is its ability to sleuth the smoke all together that inside the occasion of any smokestack, relates a cautioning message and a photograph is sent to Smartphone. The server will be interfaced with hand-off equipment circuits that control the mechanical gatherings running at home. The correspondence with server enables the client to pick the sensible gadget. The communication with server empowers the client to pick the estimable contraption. The server converses with the differentiating trades. On the off chance that the web association together is down or the server isn't up, the installed framework board still will direct and work the machines locally. By this, we give a climbable and cost persuading Home Automation framework.

Charting point-of-care results is generally not performed by the laboratory point-of-care team; however, the oversight of this activity remains the responsibility of the point-of-care program. Although point-of-care management and interfacing are not new, there remain a significant number of hospitals not yet utilizing automated electronic interfaces for charting of results to tests performed outside the clinical laboratory (also known as point of care). This article is designed to help quantify the costs associated with manual charting and help build the case for implementing an automated electronic interface through a return-on-investment method.

The penetration of renewable energy technologies into energy markets is on the increase due to significant drops in their capital cost, increase in their efficiency and improvement in storage system and power electronic interface. Most universities around the globe offer, nowadays, renewable energy courses within the electrical and mechanical engineering curricula to support the increasing demand for renewable energy engineers. This paper presents a teaching approach for modeling and simulating PV cells and systems taking into consideration the effects of temperature, irradiance, series and parallel connections of modules and shading. Equations are derived using basic electric circuit laws and MATLAB code is provided to aid students and engineers better understand PV operational characteristics through simulation.

This paper reports a novel technique enabling to tune the resonant frequency of linear inertial piezoelectric energy harvesters through the control strategy of the associated electronic interface circuit. When associated with piezoelectric devices exhibiting high electromechanical coupling, it is expected to enable the variation of the resonant frequency in large proportions.