Dr. Pushpdant Jain | VIT University (original) (raw)

Papers by Dr. Pushpdant Jain

CRC Press eBooks, Jul 1, 2024

Apple Academic Press eBooks, Dec 11, 2023

IGI Global eBooks, 2021

Spinal instrumentations have been designed to alleviate lower back pain and stabilize the spinal ... more Spinal instrumentations have been designed to alleviate lower back pain and stabilize the spinal segments. The present work aims to evaluate the biomechanical effect of the proposed Hybrid Stabilization Device (HSD). Non-linear finite element model of lumbar segment L2-L4 were developedtocomparetheintactspine(IS)withrigidimplant(RI)andhybridstabilizationdevice. TorestrictalldirectionalmotionvertebraL4bottomsurfacewerekeptfixedandaxialcompressive forceof500Nwithamomentof10NmwereappliedtothetopsurfaceofL2vertebrae.Theresultsof rangeofmotion(ROM),intervertebraldisc(IVD)pressureandstrainsforIVD-23andIVD-34were determinedforflexion,extension,lateralbendingandaxialtwist.ResultsdemonstratedthatROM ofHSDmodelishigherthanRIandlowerascomparedtoISmodel.Thepredictedbiomechanical parametersofthepresentworkmaybeconsideredbeforeclinicalimplementationsofanyimplants.

Lecture notes in mechanical engineering, 2023

International Journal on Interactive Design and Manufacturing (IJIDeM)

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

Instability in the spinal section along with the cases of degeneration is commonly cured by the p... more Instability in the spinal section along with the cases of degeneration is commonly cured by the pedicle screw fixation system. The present work aims at the identification of suitable instrumentation at the spinal segment L4-L5 through finite element method and compared with an intact spine. Vertebral section (L3- Coccyx) upper surface L3 were subjected to various axial compressive forces for the body weights of 17, 67, 100 and 167 kg under the different physiological motion conditions such as rotation, flexion, extension and bending. Considering Intact as 100% the calculated results of equivalent stress on IVD-L34, L45 and L5S are as 90%, 43% and 76% during flexion, for extension 118%, 26% and 108%, during bending 58%, 58% and 80% and during rotation 57%, 46%, 74% respectively are the lowest for 6 mm instrumentation as compared to other instrumentation model. It was also observed that the load on the cortical and annulus region were highest as compared to the cancellous and nucleus ...

Cornell University - arXiv, Nov 1, 2022

Volatility prediction in the financial market helps to understand the profit and involved risks i... more Volatility prediction in the financial market helps to understand the profit and involved risks in investment. However, due to irregularities, high fluctuations, and noise in the time series, predicting volatility poses a challenging task. In the recent Covid-19 pandemic situation, volatility prediction using complex intelligence techniques has attracted enormous attention from researchers worldwide. In this paper, a novel and simple approach based on the robust least squares method in two approaches a) with least absolute residuals (LAR) and b) without LAR, have been applied to the Chicago Board Options Exchange (CBOE) Volatility Index (VIX) for a period of ten years. For a deeper analysis, the volatility time series has been decomposed into long-term trends, and seasonal, and random fluctuations. The data sets have been divided into parts viz. training data set and testing data set. The validation results have been achieved using root mean square error (RMSE) values. It has been found that robust least squares method with LAR approach gives better results for volatility (RMSE = 0.01366) and its components viz. long term trend (RMSE = 0.10087), seasonal (RMSE = 0.010343) and remainder fluctuations (RMSE = 0.014783), respectively. For the first time, generalized prediction equations for volatility and its three components have been presented. Young researchers working in this domain can directly use the presented prediction equations to understand their data sets.

International Journal of Integrated Engineering, Feb 3, 2020

In this research, zirconium-based magnetic sorbent synthesised by chemical co-precipitation metho... more In this research, zirconium-based magnetic sorbent synthesised by chemical co-precipitation method is explored as a potential sorbent for removal of divalent metal ions from aqueous solution. The interaction characteristics between the ions and the sorbent were elucidated by instrumental analyses such as Fourier Transform InfraRed (FT-IR) Spectroscopy, Scanning Electron Microscopy (SEM), and Brunauer, Emmett, and Teller (BET) surface area analyser. Results show that the sorption rate was increased with an increase in contact time and initial metal ion concentration. Moreover, a two-stage kinetics behaviour was observed, and all the batch experiments achieved an equilibrium state within 4 hours. The evaluation of the adsorption behaviour of heavy metal divalent ions onto the magnetic sorbent was explained using two kinetic models, and it was mostly found to follow the postulate of the pseudo-second-order kinetic model. The validity of kinetic models applied in this study is also evaluated by using a normalised standard deviation.

The International Journal of Artificial Organs

The treatment of spinal failure requires suitable instrumentation, which is based on numerous con... more The treatment of spinal failure requires suitable instrumentation, which is based on numerous concepts such as rigid fixation, semi-rigid and dynamic stabilisation. In the present work, the biomechanical investigation of various fixation systems on the lumbar segment L2–L3 was performed employing finite element analysis. Different devices were considered: novel stabilisation device (NSD), rigid implant (RI) and existing dynamic stabilisation device (EDSD). All instrumented models were loaded with a condition of 400 N compressive force with a moment of 10Nm during flexion, extension, lateral bending and axial rotation. The results of range of motion change (RMC), von-Mises stress and strain were compared. The spinal biomechanics post instrumentation resulted significantly sensitive to the geometrical feature of the implant. The obtained results showed that NSD has intermediate motion characteristics in between dynamic stabilisation and rigid fixation. However, the optimum features of...

Journal of Electrical Engineering & Technology, 2022

International Journal for Multiscale Computational Engineering, 2021

IOSR Journal of Mechanical and Civil Engineering, 2012

A fully optimised process in combination with other lean and agile manufacturing techniques and s... more A fully optimised process in combination with other lean and agile manufacturing techniques and systems is guaranteed to reduce lead-time and save on cost. New product development is a means for a company to gain advantage, secure a position, or win a new customer. The more successful and timely an organization can develop new products, the more likely it is that organization will not only survive but prosper. (2) As suggested by review of the literature's and studies, there are several factors that significantly affect a product's chances of succeeding or failing. Many of these factors are associated with resources resulting from marketing activities that integrate the user/customer needs into the process. There is a significant amount of research that indicates that Conducting early stage marketing activities greatly improves the likelihood of new product success, yet the deficiency of these activities is one of the most commonly stated reasons for product failure by New Product Development members.

The relevance of product innovations and new product development for the Competitive performance ... more The relevance of product innovations and new product development for the Competitive performance of firms and for the long-term economic growth is a known and recognized topic. In the context of the power plant & process industry, process and product innovations are usually the result of cross-discipline ideas, involving, for instance, biology, chemistry, technology, engineering, nutrition and law. This paper presents a quantifying and reordering method for new product development based on the concurrent engineering concept. We can realize deeply the inner hierarchy workings of concurrent engineering in the new product development process. The purpose of this paper is to develop a dynamic planning method that is innovative, efficient and flexible for new product development by using the concurrent design concept. It ultimately helpful to designers and managers to grasp the interactive information flow between each of the activity factors for planning an optimum design process in new...

A general trend shows that while purchasing equipment or a machine and using them it is taken as ... more A general trend shows that while purchasing equipment or a machine and using them it is taken as sacrosanct that the parts / assembly or the mechanism installed are free from any defect and no improvement is required there in. However it’s not true always and now a days this has been taken up with at most concern to raise a pertinent question whether this is the optimum output from the component/assemblies fitted and being used. Present paper is based on the above subject and deals with one of the assemblies fitted on a heavy earth moving machinery known as Walking Dragline (Ransome and Rapier, made in UK) operating in Jayant OCM one of the biggest coal mines in Asia. The component placed on the Boom structure of the machinery in question was a fixed one and subjected to static friction because of coming into contact with heavy duty steel wire ropes (2 numbers) in moving conditions. The impact of the wire ropes on the component was so heavy that it was taking only a few months to ge...

Fossil fuel consumption is increasing in a massive amount due to its applications in various sect... more Fossil fuel consumption is increasing in a massive amount due to its applications in various sectors. Moreover, use of such fuels creating harmful fumes and gases, which in turn creating an impact on the environment. To reduce the impact on the environment, researchers are continuously trying to research and propose various alternative fuels. In the current study, the Biodiesel was produced from waste soyabean oil and utilized as a fuel in combustion-ignition engine. A four stroke, single cylinder and water-cooled, combustion ignition engine connected is connected with a dynamometer and its performance is checked with prepared Biodiesel. A mixture of waste soyabean oil with pure diesel is mixed with different proportions of blends such as 10%, 20% and 30% to conduct the experiments. Various experiments with different conditions were considered to identify the effect of prepared Biodiesel blends. The experiment results showed that among all blends of Biodiesel, the 20% blend of Biodi...

Materials Today: Proceedings

International Journal for Multiscale Computational Engineering