The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Misalignment during wireless charging of EVs can lead to low efficiencies (<85%) of power transfer which can lead to thermal issues and high leakage fields. This paper explores the most optimal solution towards a misalignment tolerant system. To that end, a DD-DDQ coil system with series-series compensation combined with an impedance matching control algorithm is explored. A multi-objective optimization...
Various types of high temperature fibre Bragg gratings (FBGs) for sensing applications, are briefly reviewed, discussing their various figures of merit and performance.
Diabetic Retinopathy is a vascular disorder which can result in complete blindness. So, detection and treatment of it can prevent vision loss. This paper deals with feature extraction of retina using Fuzzy C Means and morphological methods and classification of whether the patient is suffering from Diabetic Retinopathy or not using Support Vector Machines (SVM). An automated detection of Diabetic...
In general, PM machines with conventional integer slot distributed winding (ISDW) schemes exhibit significant cogging torque resulting in high torque ripple which makes them unsuitable for EV applications which require low torque pulsations. This paper presents detailed analysis of the performance of PM Synchronous motor (PMSM) with fractional slot distributed winding (FSDW) scheme which shows significant...
This letter presents a fiber-optic cavity ring down (CRD) configuration using an added-signal for curvature sensing. An optical time-domain reflectometer was used to send impulses down into the fiber loop cavity, inside of which a long period grating was placed to act as a sensing device. The added-signal was obtained by the sum of several conventional CRD impulses, thus providing an improvement on...
Straintronics is an extraordinarily energy-efficient novel hardware paradigm for digital computing and signal processing. The central idea is to build the basic binary switch with a nanoscale multiferroic consisting of a magnetostrictive layer elastically coupled to a piezoelectric layer. A tiny voltage of a few mV generates sufficient strain in the piezoelectric layer to switch the magnetization...
Free-standing InSb nanowires of 60–90 nm diameter have been electrochemically self-assembled and we have measured their room temperature Raman spectra in a weak magnetic field of ∼0.2 Tesla. Both the longitudinal (LO) and the transverse (TO) optical phonon peaks are suppressed in a magnetic field. The TO phonon peak experiences a slight red-shift and the LO phonon peak experiences a slight blue shift...
Silver is known to possess antimicrobial properties that are of chemical origin. It is believed that either Ag atoms bind to thiol groups in bacterial enzymes, or Ag+ ions enter bacterial cells and denature the DNA molecule, to kill bacteria. In the case of silver nanorods, it is also possible that the tips of nanorods puncture bacterial cells and kill bacteria via a physical mechanism. To test this...
We have studied magnetization switching in elliptical multiferroic nanomagnets due to strain and in other elliptical nanomagnets due to spin torque generated via the spin Hall effect. These switching mechanisms were chosen since they promise to be the two most energy-efficient strategies for switching nanomagnets. Micromagnetic simulations showed that strain induced switching is coherent in small...
Evanescent wave-based optical fiber biosensors consisting of long period grating (LPG) are presented. A chemical or a biochemical interaction taking place on a conveniently treated surface causes a refractive index (RI) change that can be evaluated using optical approaches. By implementing the same antibody/antigen (IgG/anti-IgG) assay protocol in the same experimental conditions, a comparative assessment...
Electrical properties and reliability of bilayer HfO2 (∼7nm)/Al2O3 (∼3nm) high-k dielectric films prepared by RF sputtering have been studied in detail. It is observed that the bilayer dielectric reduces the frequency dispersion, hysteresis, interface trap charge density (Dit) and gate leakage current density when compared to single layer HfO2. In order to study the degradation mechanisms in Al/HfO...
A Fiber Optic sensor for the detection and estimation total cholesterol has been designed and developed. The Long Period Grating (LPG) sensor developed showed a linear response in the range of 500ppm to 4000ppm of cholesterol levels. This is highly desirable for a commercial cholesterol sensor as the level of cholesterol for normal humans ranges from 1400ppm to 2000ppm.
In this paper, the effects of temperature on the spectral profiles of long period gratings (LPGs) fabricated in B-Ge co doped photosensitive fiber and standard single-mode fiber is investigated. The results obtained show that the temperature sensitivity of the LPG in the photosensitive fiber is considerably high compared with the SMF-28 fiber. It has also been observed that LPGs in a B-Ge co doped...
The paper presents an approach to identify the emotions of the bloggers on different topics provided in the Bengali blog documents. The rule based identification of emotion holders and topics along with their corresponding emotional expressions forms the baseline system. A Support Vector Machine (SVM) based supervised framework is also employed to identify the three components from the blog sentences...
The standard approach of using multi-commodity network flow (MCNF) techniques for designing optimal WDM networks often lead to computationally difficult Mixed Integer Linear Programs (MILP) which work only on small networks. Modern Operations Research (OR) techniques may be helpful when developing efficient algorithms for large WDM networks. This paper explores the Branch, Price and Cut techniques...
Rank Aggregation, in layman's term, is a technique of inferring a consensus ranking when multiple ranked lists of a set objects are given. Rank Aggregation has importance in a wide spectrum of fields including spam reduction in meta search, social choice theory of welfare economics, microarray analysis in bioinformatics etc. Unfortunately an ample Rank Aggregation is computationally a hard task to...
This paper deals about the Name Entity Recognition (NER) of Manipuri, a highly agglutinative Indian Language. This language is an Eight Scheduled Language of Indian Constitution. NER plays an important role in the applications of Natural Language Processing like Machine Translation, Part of Speech tagging, Information Retrieval, Question Answering etc. Feature selection is an important factor in recognition...
Digital baseband processors in portable devices today are able to operate off voltages of 1V and less. Efficient DC-DC converters are required to power these ICs from Li-ion batteries with a voltage range of 2.8 to 4.2V. This is done by a discrete power management IC (PMIC) capable of handling the high battery voltage. However, there is significant push in integrating the PMIC module with the baseband...
If cloud computing (CC) is to achieve its potential, there needs to be a clear understanding of the various issues involved, both from the perspectives of the providers and the consumers of the technology. There is an equally urgent need for understanding the business-related issues surrounding CC. We interviewed several industry executives who are either involved as developers or are evaluating CC...
In a translucent optical network, the optical signal is regenerated at selected nodes of the network, before the signal quality degrades below a threshold. Given the optical reach, to minimize the network cost, the goal of the regenerator placement problem is to find the minimum number of regenerators necessary in the network, so that every pair of nodes is able to establish a lightpath (either transparent...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.