Indian Institute of Information Technology Senapati, Manipur

The idea of a multiple inverter originated from the extension of inverters to many layers in order to lessen distortion from the basic sinusoidal waveform. Using multiple level inverters has the drawback of requiring the installation of extra switches, which raises the system’s bulk and cost and reduces its reliability due to the higher component count. This study proposes a twentyfive-level inverter (25-LI) with fewer switches to address the issue of the system being bigger, more expensive, less dependable, and having less distortion than a symmetrical H-bridged 25-level inverter. The MATLAB platform is used to develop the idea, and analysis is used to evaluate the results’ effectiveness.

Parkinson’s disease is a neurological movement disorder which affects the brain by stopping the dopamine production in the brain. Some common health problems of Parkinson’s disease are body movement difficulty due to stiffness of muscle, loss of memory, depression, sleeping problem and speech problem which is difficulty in pronouncing words. The paper presents the development of database of Parkinson’s disease (PD) patient of Manipur and classification of PD patient from healthy ones. The voice of 50 people of PD patient and 50 people of healthy ones is collected from the people of Manipur. The voice of English vowel \a\, \e\, \i\, \o\, \u\ are recorded and used here. An accuracy of 67.08% is achieved which classifies the voice recorded as PD and healthy ones while implementing this database.

Text driven diffusion models have shown remarkable capabilities in editing images. However, when editing 3D scenes, existing works mostly rely on training a NeRF for 3D editing. Recent NeRF editing methods leverages edit operations by deploying 2D diffusion models and project these edits into 3D space. They require strong positional priors alongside text prompt to identify the edit location. These methods are operational on small 3D scenes and are more generalized to particular scene. They require training for each specific edit and cannot be exploited in real-time edits. To address these limitations, we propose a novel method, FreeEdit, to make edits in training free manner using mesh representations as a substitute for NeRF. Training-free methods are now a possibility because of the advances in foundation model's space. We leverage these models to bring a training-free alternative and introduce solutions for insertion, replacement and deletion. We consider insertion, replacement and deletion as basic blocks for performing intricate edits with certain combinations of these operations. Given a text prompt and a 3D scene, our model is capable of identifying what object should be inserted/replaced or deleted and location where edit should be performed. We also introduce a novel algorithm as part of FreeEdit to find the optimal location on grounding object for placement. We evaluate our model by comparing it with baseline models on a wide range of scenes using quantitative and qualitative metrics and showcase the merits of our method with respect to others. Project page: https://vivekmadhavaram.github.io/FreeEdit_page/

Low-power portable devices play a major role in IoT applications, where the analog-to-digital converters (ADCs) are very important components for the processing of analog signals. In this paper, a 5-bit two-step flash ADC with a low-power double-tail dynamic comparator (DTDC) using the control switching technique is presented. The most significant bit (MSB) in the proposed design is produced by only one low-power DTDC in the first stage, and the remaining bits are generated by the flash ADC in the second stage with the help of an auto-control circuit. A control circuit produced reference voltages with respect to the control input and mid-point voltage (Vk). The proposed design and simulations are carried out using 90 nm CMOS technology. The result shows that the peak differential non-linearity (DNL) and integral non-linearity (INL) are +0.60/−0.69 and +0.66/−0.40 LSB, respectively. The signal-to-noise and distortion ratio (SNDR) for an input signal having a frequency of 1.75 MHz is found to be 30.31 dB. The total power consumption of the proposed design is significantly reduced, which is 439.178 μW for a supply voltage of 1.2 V. The figure of merit (FOM) is about 0.054 pJ/conversion step at 250 MS/s. The present design provides low power consumption and occupies less area compared to the existing works.

The present research study aimed to investigate the varieties of leisure activities chosen by the female paramedical nontribal students of Tripura. The study found that, BMI value is within normal range which indicates good health status of the participants and also good impact of leisure activities on health. Most popular leisure activity was found to be internet surfing, followed by dancing, singing, cooking, gardening, physical activities and reading books. In internet surfing most participants love to play games in mobile as their leisure activity. No health issues had been reported by the participants.

A dynamical predator-prey model with constant prey harvesting, proportional harvesting in predator has been studied. The square root functional response also has been incorporated in the system to describe the prey herd behavior, assuming the average handling time is zero. The existence and the local stability of equilibria of the system have been discussed. It is examined that, two types of bifurcation occur in the system. The two types of bifurcations have been analyzed, and it has been found by analyzing the saddle-node bifurcation that, there is a maximum sustainable yield . At >(1/4) , the prey population will abolish from the system and then extinction of the predator population will happen. But if 0

Meetei Mayek is a recently revived script for Manipuri language/Meeteilon. The script was added to the Unicode Standard in 2009 only and has very scarce openly available digital tools. An Input Method Editor (IME) is a software that enables users to enter text in languages that are difficult to do with a standard QWERTY keyboard. The proposed and developed Meetei Mayek Keyboard is an IME to type Unicode compliant Meetei Mayek texts. The underlying core architecture of the input method is based on the phonological Back-Transliteration based mapping of Meetei Mayek alphabets to Latin keys of QWERTY. The Unigram frequency distribution of Meetei Mayek letters over a corpus of 10 Million words is used for secondary enhancement and layout performance testing purposes. The resulting software is an IME for Meetei Mayek with easy setup and use by common mass for general Meetei Mayek text input purposes.

The analysis of segmental and supra-segmental characteristics provides vital cues to dialectal variation of a language. There has been no comparative study on acoustic and prosodic features of the dialects of Manipuri. In this paper, we present a description of dialectal variation for three of the major dialects of Manipuri, namely Imphal, Kakching and Sekmai, based on the observation and analysis of speech data. The Imphal dialect spoken by the speakers, who live in the capital city of Manipur state known as Imphal, is taken to be the standard form for Manipuri language. Kakching and Sekmai dialect speakers live in Kakching and Awang Sekmai, respectively. Formant frequency, segment duration, energy values and pitch values are measured to study the vowel characteristics. The findings of the study show that dialectal variation is well represented by acoustic and prosodic variations in the three dialects. This preliminary analysis will be helpful for a more detailed comparative study of Manipuri dialects in the future.

One of the great interest in science and industry is the ability for a machine to capture 3D information from the real world which can duplicate the ability of human vision. Many research has been conducted in stereo vision to duplicate the real world environment for a machine to adapt the ability of human vision. The distance of an object from an observer taken in an image is calculated using a stereo camera. Camera calibration is performed to obtain the stereo parameters of both the cameras, the images from both the camera are rectified so that they are in the same plane. The disparity between the left and the right images is calculated, using the disparity map and the stereo parameter 3-Dimensional(3D) scene is constructed. The distance of the object is calculated by determining the centroid of the bounding box and calculating the Euclidean distance between the centroid of the bounding box and the camera. Results show the output of the object being placed at the distance between 10 to 3 meters. The average error in the distance calculation is 2.08.

Importance of translation has been realized long way back, but mostly it was manual translation. Translating a particular language to another language requires knowledge and expertise in both the languages, and often takes a lot of time and effort. In recent past few decades, a need has arisen to translate using automated tools. This method which we now know as machine translation has been an ongoing research till date. Many tools and systems have been developed and these systems have been able to translate many languages with reasonable output based on the resources and technology used. In order to build such a system, a critical resource is the parallel corpora. To translate between two languages, a bilingual corpus is required. For some languages like Khasi where the number of speakers is very less compared to Bengali, Punjabi or Tamil, there is no such corpora reported so far. At present there is a requirement to build a parallel corpus so that machine translation work can be started. This paper surveys some of the existing documents in Khasi which has been translated from English. A study is also shown on a few selected documents. These documents could be used to build a bilingual corpus which can be the source for machine translation in the future.