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In the present paper, a tilt table device for testing the interface shear strength in geotechnical centrifuge is presented. By combining the advantages of tilt table and centrifuge, our tests cover a wide range of stresses from 10 kPa to 100 kPa. After a detailed description of the tilt table device, the test process in a centrifuge and its evaluation procedure is presented. The softening behaviour...
Accelerator and Pulse Power Division of BARC has developed a DC electron accelerator for cross linking of polymers, medical starilisation, preservation of food. The demonstration of stack-gas cleanup for green power generation has been demonstrated sussessfully. The support structure of the 3MVDC voltage generator is made of Perspex for high dielectric strength, easy availability of raw material,...
BARC has been developed 2856 MHz accelerating cavities for 6 MeV, 9 MeV and 10 MeV RF Linac. New vendors are developed for mass production of accelerating cavity for future projects. New vendors are developing for diamond turning machining, cleaning and brazing processes. Fabrication involved material testing, CNC diamond turning of cavity, cavity cleaning and brazing. Before and after brazing resonance...
Low temperature glow discharge wall conditioning (GDC) using H2 gas is effective in reduction of oxygen and carbon (low-Z) contain impurities on near surface region of vessel wall. The high retention of hydrogen in vessel wall/components due to long operation of H2 GDC increases hydrogen out-gassing during tokamak operation and affects the production of high temperature plasma. The hydrogen retention...
A typical public health management system has a geospatial context. The public health nodal offices collect the health data from different regions for further analysis. The timeliness and correctness of the collected data is important for public health management. Web based mobile applications may be helpful but it requires constant network connectivity which is often not available in rural regions...
Anti-forensics is defined as a method undertaken to thwart the digital investigation process conducted by forensic investigators. In this paper we introduce the design and implementation of three novel anti-forensic approaches for data deletion and manipulation on three of the market-leading forensics tools. The evaluation results of our proposed anti-forensic approaches on a typical Android cell...
Linear Induction accelerator rated 200kV, 5kA, 100ns and 100Hz repetition rate has been designed and developed in the division. Electron linear induction accelerator belongs to a new class of short pulse, high average power accelerator being developed for various industrial, medical and defense application. The satisfactory performance of all the sub-systems including solid state power modulator,...
As a partially invasive and clinically obtained neural signal, the electrocorticogram (ECoG) provides a unique opportunity to study cortical processing in humans in vivo. Functional connectivity mapping based on the ECoG signal can provide insight into epileptogenic zones and putative cortical circuits. We describe the first application of time-varying dynamic Bayesian networks (TVDBN) to the ECoG...
Previous research has shown that neuronal activity can be used to continuously decode the kinematics of gross movements involving arm and hand trajectory. However, decoding the kinematics of fine motor movements, such as the manipulation of individual fingers, has not been demonstrated. In this study, single unit activities were recorded from task-related neurons in M1 of two trained rhesus monkey...
External sensing applications in automobiles are enabled by Microsystems that can sense and analyze 3D environment. In this paper, we describe the system design of a time-of-flight (TOF) 3D range camera for parking assist and backup application. The camera operates based on measuring the time delay of modulated infrared light from an active emitter, using a single detector chip fabricated on standard...
Efficient and convenient handling of heterogeneous data is a current challenge for data management systems. In this paper, we discuss several common relational approaches to represent heterogeneity and argue for a design based on a single wide-table, referred to as a flexible schema. For this scenario, we focus on partial indexation and its support for efficient data storage and processing. Filtered...
This paper presents a software middleware to meet the requirements of automotive infotainment systems for a flexible and modular media solution. It allows the adaptation of multimedia use cases and applications from the consumer and PC area into an automotive environment. Due to an optimized filter graph architecture, the multimedia engine allows the implementation of complex user scenarios on cost-driven...
In neuroprosthetic systems, decoding based on a sparse population of task-related neurons is impractical because micro-electrode arrays often drift gradually in the cortex. Since the neuronal population being recorded from is dynamic, it is favorable to have a larger number of neurons containing information relevant to movement decoding and to decrease the relative importance of individual neurons...
The fast pace of development of upper-limb prostheses requires a paradigm shift in EMG-based controls. Traditional control schemes are only capable of providing 2 degrees of freedom, which is insufficient for dexterous control of individual fingers. We present a framework where myoelectric signals from natural hand and finger movements can be decoded with a high accuracy. 32 surface-EMG electrodes...
A brain-computer interface (BCI) uses electrophysiological measures of brain function to enable individuals to communicate with the external world, bypassing normal neuromuscular pathways. While it has been suggested that this control can be applied for neuroprostheses, few studies have demonstrated practical BCI control of a prosthetic device. In this paper, an electroencephalogram (EEG)-based motor...
Advances in brain-computer interfaces (BCI) have enabled direct neural control of robotic and prosthetic devices. However, it remains unknown whether cortical signals can be decoded in real-time to replicate dexterous movements of individual fingers and the wrist. In this study, single unit activity from 115 task-related neurons in the primary motor cortex (Ml) of a trained rhesus monkey were recorded,...
Advances in brain-computer interfaces (BCI) will require the integration of haptic feedback channels to add extra sensory dimensions for applications such as neuroprostheses. To the best of our knowledge, previous BCIs have relied on visual biofeedback to the user in the form of a computer interface or a device. This study demonstrates that it is possible to operate a BCI using only vibrotactile biofeedback...
Non invasive brain-computer interfaces (BCI) allow people to communicate by modulating features of their electroencephalogram (EEG). Spatiotemporal filtering has a vital role in multi-class, EEG based BCI. In this study, we used a novel combination of principle component analysis, independent component analysis and dipole source localization to design a spatiotemporal multiple source tuning (SPAMSORT)...
A Brain Computer Interface (BCI) allows individuals with severe disabilities to communicate with their external environment, by translating changes in their electroencephalogram (EEG) to control signals. Practical applications of BCIs are limited by the long training time required for achieving high levels of control. We present a pilot study to assess the level of BCI control achieved within a short...
Dynamic synchronization between different brain regions has long been considered as the underlying neural mechanism of sensory, motor and cognitive functions. Practical methods of accurately quantifying this kind of dynamics by using scalp EEG are plagued by volume conduction effects and background noise. We propose a new method of measuring transient phase locking between independent components underlying...
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