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.
This paper presents a low cost fabrication process for development of electrostatically actuated optical microstructures. To illustrate the process - a design, fabrication and measurement iteration for digital micromirror test structures is presented. The structures are fabricated on Single Crystal Silicon wafer using surface micromachining and gold electroplating. The major focus of the work has...
For a person with hand amputee it becomes very difficult to perform daily tasks. In this paper we propose a novel mechatronics device which will aesthetically looks like normal human hand and will be able to perform basic operations like gripping and holding of simple objects. Low cost and maintenance free assembly is the advantage of the proposed design.
In this paper, different Proportional-Integral-Derivative (PID) controller tuning techniques are investigated for DC motor. Initially PID controller parameters for various tuning techniques are determined and then applied to the DC motor model for speed control. Simulation results are generated, using these controllers, under the same transient conditions and performances are compared.
This paper gives a new approach for recognition of handwritten Devanagari characters. Twenty handwritten characters from 100 people resulting 2000 characters are used for the experimentation. The handwritten characters written of paper is scanned, preprocessed and on every individual characters wavelet transform is applied so as to get decomposed images of characters. Statistical parameters are computed...
Stereo Vision has created an impact on research in the area of computer vision system. It has many applications like 3D scene reconstruction, mobile robotics to detect obstacles, surgical robotics, etc. This paper focuses on various region based algorithms for stereo vision. They are used for generating disparity map. This disparity map is used to find out the distance of the objects in the images...
In this paper, the performance is analyzed based on operating speed, area and memory requirement for the least mean square (LMS) adaptive finite impulse response (FIR) filter using distributed arithmetic (DA). DA technique performs the convolution operation by replacing multipliers with look up tables that result in low resource utilization and high throughput. The throughput and resource utilization...
In this paper, we have reported the improved surface potential calculation in the BSIM-IMG model for FDSOI MOSFETs. Model validation is done with the experimental data provided by Low-power Electronics Association and Project (LEAP). The model shows accurate behavior for C-V and I-V characteristics while keeping smooth behavior for their higher order derivatives. Model has smooth transition from weak...
Gas insulated substations have found their applications in the modern day power industry due to their low space requirement and higher reliability of operation. Their major components include busducts, circuit breakers, transformers that are placed in enclosures filled with sulphur hexafluoride gas. The major component of GIS is the gasinsulated busduct which has conductors enclosed in anearthed metallicenclosure...
This paper proposes an algorithm for sound source localization in a large area wireless sensor networks. The wireless sensor network design consists of a set of homogenous sensor nodes placed in a square grid and each node has the same specification of the microphone (receivers). Each node can sense the sound signal from an event like a gunshot and send the information on the time of detection of...
Mel Frequency Cepstral Coefficients (MFCC) computation is required to be done in many speech recognition algorithms. This paper proposes an efficient scheme for MFCC computation. It exploits the triangular structure of the frequency response function of the MFCC filters. The proposed scheme is showing better results in terms of memory requirements and latency. However, slight degradation in recognition...
This algorithm aims at detecting the state of the eye whether close or open. The eye is first extracted from an image. Then the extracted eye image is given to algorithm which is dynamic and dimension independent of eye image. The path breaking approach used, is the concept of the center of gravity in image processing to achieve the goal.
Arithmetic circuits plays an important role in digital systems. Realization of complex digital circuits is possible with development in very large scale integration (VLSI) circuit technology. In this paper an arithmetic unit based on IEEE-754 standard for floating point numbers has been implemented on Spartan3E XC3S500e FPGA Board. Here Floating Point Unit (FPU) follows IEEE single precision format...
This work presents the simulation of quantum transport in tri-gate (TG) silicon-on-insulator (SOI) FinFET using 3-D numerical simulation. The impact of process parameters like fin height (HFin), fin width (WFin), length of underlap (Lun) in both source and drain side are investigated using Sentaurus device simulator. The effectiveness and optimization of the process parameters required in SOI FinFETs...
A number of naturally occurring events, such as earthquakes, hurricanes, tornados and floods are capable of causing deaths, injuries and property damages. Hazards associated with earthquakes are commonly referred to as seismic hazards [1]. Almost all earthquakes are preceded by physical processes commonly known as earthquake precursors [1]. Earthquake prediction is feasible by measurement and analysis...
This paper presents single stage design of low noise amplifier(LNA) common gate(CG) current reused topology using pseudomorphic high electron mobility transistors(pHEMT) for wind profiling radar application at 1.3 GHz. Though CG current reused topology is not sufficient for achieving the desired parameter of LNA such as noise figure, input and output return losses and stability, so source degenerated...
All real practical systems have nonlinear dynamics. To linearize the system and to design a controller for the linearized plant is often inadequate and insufficient for many complex systems. Thus, controller design for nonlinear systems still forms an important part of research. The paper proposes a simple method of stabilizing a class of nonlinear system. The nonlinearity is assumed to be norm bounded...
Diabetes has become a life threatening disease. The effect of diabetes on human retina is called Diabetic Retinopathy (DR). If DR involves macula, it is known as maculopathy. Under this condition, the visibility of the patient gets affected adversely. In this paper, we have proposed a method for grading the stages of maculopathy. In the first stage, the abnormalities are detected. Second stage consists...
In this paper design and development of an S Band linearly polarized microstrip patch antenna for high temperature applications is presented with simulated and measured results. The antenna requires dielectric cover over radiating portion to provide the protection from heat, physical damage and environment. This antenna configuration is mostly useful in applications like missiles, aircrafts, spacecrafts...
Automatic Speech Recognition (ASR) by machine has attracted many researchers to design robust recognition system. Latest advances in speech recognition by incorporation of visual cues for enhancement of speech gives rise to Audio Visual Speech Recognition system. Multi-pose AVSR is gaining attention due to its robust feature extraction capability. This process is contributing in design of robust AVSR...
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.