A5079125105- Superconducting Materials and Applications
- Fusion materials and technologies
- Particle accelerators and beam dynamics
- Nuclear reactor physics and engineering
- Non-Invasive Vital Sign Monitoring
- Biometric Identification and Security
- ECG Monitoring and Analysis
- Spacecraft and Cryogenic Technologies
- Heart Rate Variability and Autonomic Control
- Modeling, Simulation, and Optimization
- Wireless Body Area Networks
- Superconductivity in MgB2 and Alloys
- Magnetic Properties and Applications
- Advanced Thermodynamic Systems and Engines
- Hemodynamic Monitoring and Therapy
- Nuclear and radioactivity studies
- Electromagnetic Simulation and Numerical Methods
- Refrigeration and Air Conditioning Technologies
- Advanced Sensor and Energy Harvesting Materials
- Geotechnical and Geomechanical Engineering
- Face and Expression Recognition
- Muscle activation and electromyography studies
- Calibration and Measurement Techniques
- EEG and Brain-Computer Interfaces
- Magnetic confinement fusion research
Maharaja Engineering College
2016-2022
Institute for Plasma Research
2015-2022
Nirma University
2022
Sangath
2017-2021
Recent advanced technology in the field of Low power VLSI design, wireless communication and mobile based systems has shown significant scope towards development an alternate method measuring biopotential signals using dry electrodes as sensors. These can be used for long duration monitoirng physiological signals. The conventional gel wet Ag/AgCl are being universally all clinical applications measurement like ECG, EEG, EMG etc. give excellent signal output, but they have drawback that,...
The cold circulators, the most challenging component of ITER cryo-distribution system, have been designed, manufactured and tested successfully at factory. design point for circulator has specified as 2.21 kg/s 4.3 K inlet temperature having 0.155 MPa pressure head, dedicated nominal operation toroidal field (TF) superconducting magnet ITER. expected isentropic efficiency defined 70 % or more suitable to cater demands system. Two circulators TF installed in Test Auxiliary Cold Box (TACB)...
Wearable remote health monitoring systems have gained significant prominence in the recent years due to their growth technological advances. One form of Physiological Monitoring System (WPMS) is Body Area Networks (WBAN) used monitor status wearer for long durations. The paper discusses a prototype WBAN based wearable physiological system parameters such as Electrocardiogram (ECG) and Electroencephalogram (EEG) acquired using textile electrode, Photoplethysmogram (PPG), Galvanic Skin...
Wearable health monitoring systems use integrated sensors to monitor vital physiological parameters of the wearer. The paper discusses preliminary results a prototype wearable system such as Electrocardiogram (ECG), Heart Rate (HR), Electroencephalogram (EEG) and Body Temperature. ECG EEG signals are acquired using textile electrodes into fabric processed remove noises extracted trend analysis is carried out. monitored at remote station ZigBee wireless communication.
Supercritical helium cold circulators operating at unprecedented high mass flow rates are required to maintain the ITER magnet and cryopump system conditions. The qualification test plan has been developed for two installed in Test Auxiliary Cold Box compliance with Japan Atomic Energy Agency cryogenic facility consisting of a cryoplant ∼ 5 kW 4.5 K. process modelling modes such as cool-down/warm-up, nominal 10% higher speed operation, including approach, assumptions made, expected results...
Since the conceptual design of ITER Cryodistribution many modifications have been applied due to both system optimization and improved knowledge clients' requirements. Process optimizations in Cryoplant resulted component simplifications whereas increased heat load some superconducting magnet systems required more complicated process configuration but also removal a cold box was possible arrangement standardization. Another box, planned for redundancy, has removed Tokamak in-Cryostat piping...
Wearable Physiological Monitoring Systems (WPMS) integrates a number of sensors into fabric the wearer for remotely monitoring health status. The paper discusses Wireless wearable remote physiological signal system to acquire and monitor parameters like Electrocardiogram (ECG) acquired from dry textile electrode, Photoplethysmogram (PPG), body temperature, Pulse Transmit Time (PTT) Heart Rate. signals are transmitted wireless using ZigBee or Bluetooth station. In station data is processed...
The Pre-Series Cryoline (PTCL) for ITER is a representative cryoline from the complicated network of all cryolines project. It ∼28 m in length with same cross-section (1:1) including main line (ML) and branch (BL) as torus & cryostat cryoline. Geometrically; it has bends at different angles i.e. 90°, 120°, 135° 160° comprising T-section Z-section. PTCL been fabricated 5 elements based on installation feasibility. mechanical instrumentation like sensors mounting, displacement sensors, etc....
Cold circulators, part of ITER Cryo-distribution system, have now reached to a stage final qualification demonstrate the design cater maximum mass flow and operational demands toroidal field (TF) superconducting magnet with very high isentropic efficiency. The for two numbers TF cold circulators are complete gratifying additionally requirements poloidal & central solenoid as well cryopumps towards fulfilment standardization aspects. Management physical functional interfaces has been...
The system of ITER Cryodistribution (CD) and Cryolines (CLs) is an integral interface between the Cryoplant systems superconducting (SC) magnets as well Cryopumps (CPs). project has progressed from conceptual stage to industrial stage. subsystems are at various stages design defined by project, namely, preliminary design, final formal reviews. Significant progresses have been made in prototypes studies validations, such CL cold circulators. While one prototype already tested, other...
A two-channel prototype cryogenic temperature transmitter is developed using an ARM Cortex-M3 series precision analog microcontroller a rapid prototyping method for use in indigenous developments. The utilizes Arduino compatible baseboard equipped with interfaces programming/debugging. Additional circuits are fabricated, and embedded application software tested. input circuit consists of low-value high accuracy current source to excite the sensors Resistance Temperature Detector (RTD) type...
Complex and large cryogenic distribution systems are integral part of a fusion machine having superconducting magnets, cryopumps, etc. The various equipment the system interconnected via Cryogenic Transfer Lines (CTLs) to distribute cold helium end users. During nominal operation machine, inventory in CTLs could be order several tons. present released surrounding volume due accidental scenario. analysis, aims estimate lowest temperature paper will describe simulation results test plan...
The multi-process pipe vacuum jacketed cryolines for the ITER project are probably world's most complex in terms of layout, load cases, quality, safety and regulatory requirements. As a risk mitigation plan, design, manufacturing testing prototype cryoline (PTCL) was planned before approval final design cryolines. 29 meter long PTCL consist 6 process pipes encased by thermal shield inside Outer Vacuum Jacket DN 600 size carries cold helium at 4.5 K 80 K. global heat limit defined as 1.2 W/m...
This paper proposes a new approach for non-invasive cuff-less arterial Blood Pressure (BP) estimation using pulse transit time (PTT). The ECG and PPG signals were acquired at sampling rate of 500Hz. Standard cuff based Sphygmomanometer used to take reference BP heart simultaneously. hardware the acquiring designed fabricated made study was carried out with 60 subject during various activities. objective this work is estimate Systolic Diastolic PTT techniques apply regression analysis machine...
Cold circulating pumps (CCP) in ITER-Cryodistribution system has been evaluated as the most technology critical component. Test Auxiliary Box (TACB) is a valve box to perform pre-series test of CCPs ITER. The operating conditions installed TACB during demands for detailed design instrumentation and control including physical functional interfaces with subsystems facility. Control consists programmable logic controller (PLC) at level two dedicated controllers component level, integrated...
The Pre-series cryoline (PTCL) is a representative from the complex but indispensable network of intricate multi-process pipe ITER cryolines. A dedicated test facility has been developed for thermal performance measurements PTCL at cold temperature. This capable supplying 80K gaseous helium 6.5 bar(a) and maximum 37 g/s as well 4.5 K liquid/vapor 2 6 which required carrying out tests. mainly consists screw compressor, liquid Dewar, nitrogen box valve boxes distributing controlling flow...
Vacuum insulated cryolines serve as an efficient medium to transport cryogens. Insulation vacuum of these can degrade under various accidental scenarios. One such case is due a major leak ambient air inside the Outer Jacket (OVJ) which cannot be compensated by pump. For accurate estimation rate pressurization in process pipe, precise heat transfer coefficients and fluxes are necessary. Hence, small experiment on representative cryoline 0.5m OVJ diameter 4m length has been performed. The Loss...
Abstract The ITER Cryodistribution (CD) system distributes cryogenic power from the cryoplant to applications, namely superconducting magnets, cryopumps, etc. CD comprises seven cold boxes of which Cryoplant Termination Cold Box (CTCB) is largest one. CTCB plays a pivotal role in distributing helium fluid with highest mass flow rates 4 kg/s coming one 80 K plants applications. physical connection between and different applications through nine cryolines (CLs) having diameters ranging 0.45 m...