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l-Detect: Life Detection Under Debris in Disaster Zones

Poola, Lakshmi (author), John, Luis Henrik (author), Godkhindi, Shrutkirthi S. (author), Reddy, Preetham (author), Rao, Deeksha P. (author), Prabhakar, T. V. (author), Venkatesha Prasad, Ranga Rao (author)

The recent spate of natural disasters such as earthquakes and floods destroyed buildings and caused loss of lives. Many times, the loss of life is attributed to slow response and not being able to reach the survivors. In such scenarios, the staggering number of deaths in the aftermath of a disaster can be reduced if information about survivors...

conference paper 2024

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Towards a new surrogate model for predicting short-term NOx-O3 effects from aviation using Gaussian processes

Rao, P.V. (author), Dwight, R.P. (author), Singh, D. (author), Maruhashi, J. (author), Dedoussi, I.C. (author), Grewe, V. (author), Frömming, Christine (author)

While efforts have been made to curb CO2 emissions from aviation, the more uncertain non-CO2 effects that contribute about two-thirds to the warming in terms of radiative forcing (RF), still require attention. The most important non-CO2 effects include persistent line-shaped contrails, contrail-induced cirrus clouds and nitrogen oxide (NOx)...

conference paper 2023

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Magnetic Coupling Based Test Development for Contact and Interconnect Defects in STT-MRAMs

Yuan, S. (author), Zhang, Z. (author), Fieback, M. (author), Xun, H. (author), Marinissen, E. J. (author), Kar, G. S. (author), Rao, S. (author), Couet, S. (author), Taouil, M. (author), Hamdioui, S. (author)

The development of Spin-Transfer Torque Magnetic RAMs (STT-MRAMs) mass production requires high-quality test solutions. Accurate and appropriate fault modeling is crucial for the realization of such solutions. This paper targets fault modeling and test generation for all interconnect and contact defects in STT-MRAMs and shows that using the...

conference paper 2023

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Device-Aware Test for Back-Hopping Defects in STT-MRAMs

Yuan, S. (author), Taouil, M. (author), Fieback, M. (author), Xun, H. (author), Marinissen, Erik Jan (author), Kar, Gouri Sankar (author), Rao, Sidharth (author), Couet, Sebastien (author), Hamdioui, S. (author)

The development of Spin-transfer torque magnetic RAM (STT-MRAM) mass production requires high-quality dedicated test solutions, for which understanding and modeling of manufacturing defects of the magnetic tunnel junction (MTJ) is crucial. This paper introduces and characterizes a new defect called Back-Hopping (BH); it also provides its...

conference paper 2023

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TIM: A Novel Quality of Service Metric for Tactile Internet

Kroep, H.J.C. (author), Gokhale, V. (author), Simha, A. (author), Venkatesha Prasad, Ranga Rao (author), Rao, V.S. (author)

Tactile Internet (TI) envisions communicating haptic sensory information and kinesthetic feedback over the network and is expected to transfer human skills remotely. For mission-critical TI applications, the network latency is commonly mandated to be between 1-10 ms, due to the sensitivity of human touch, and the packet delivery ratio to be...

conference paper 2023

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Device Aware Diagnosis for Unique Defects in STT-MRAMs

Aouichi, A. (author), Yuan, S. (author), Fieback, M. (author), Rao, Siddharth (author), Kim, Woojin (author), Marinissen, Erik Jan (author), Couet, Sebastien (author), Taouil, M. (author), Hamdioui, S. (author)

Spin-Transfer Torque Magnetic RAMs (STT-MRAMs) are on their way to commercialization. However, obtaining high-quality test and diagnosis solutions for STT-MRAMs is challenging due to the existence of unique defects in Magnetic Tunneling Junctions (MTJs). Recently, the Device-Aware Test (DA-Test) method has been put forward as an effective...

conference paper 2023

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Affective Driver-Pedestrian Interaction: Exploring Driver Affective Responses toward Pedestrian Crossing Actions using Camera and Physiological Sensors

Rao, Shruti (author), Wirjopawiro, Sabrina (author), Pons Rodriguez, Gerard (author), Röggla, Thomas (author), Cesar, Pablo (author), El Ali, Abdallah (author)

Eliciting and capturing drivers' affective responses in a realistic outdoor setting with pedestrians poses a challenge when designing in-vehicle, empathic interfaces. To address this, we designed a controlled, outdoor car driving circuit where drivers (N=27) drove and encountered pedestrian confederates who performed non-verbal positive or...

conference paper 2023

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Exploring Emotion Responses toward Pedestrian Crossing Actions for Designing In-vehicle Empathic Interfaces

Ghosh, Surjya (author), Pons Rodriguez, Gerard (author), Rao, Shruti (author), El Ali, Abdallah (author), Cesar, Pablo (author)

While affective non-verbal communication between pedestrians and drivers has been shown to improve on-road safety and driving experiences, it remains a challenge to design driver assistance systems that can automatically capture these affective cues. In this early work, we identify users' emotional self-report responses towards commonly...

conference paper 2022

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Ethical Self-Disclosing Voice User Interfaces for Delivery of News

Rao, Shruti (author), Resendez, Valeria (author), El Ali, Abdallah (author), Cesar, Pablo (author)

Voice User Interfaces (VUIs) such as Alexa and Google Home that use human-like design cues are an increasingly popular means for accessing news. Self-disclosure in particular may be used to build relationships of trust with users who may reveal intimate details about themselves. This information can be (mis)used by algorithms to tailor and...

conference paper 2022

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Special Session: STT-MRAMs: Technology, Design and Test

Gebregiorgis, A.B. (author), Wu, L. (author), Münch, Christopher (author), Rao, Siddharth (author), Tahoori, Mehdi B. (author), Hamdioui, S. (author)

STT-MRAM has long been a promising non-volatile memory solution for the embedded application space owing to its attractive characteristics such as non-volatility, low leakage, high endurance, and scalability. However, the operating requirements for high-performance computing (HPC) and low power (LP) applications involve different challenges....

conference paper 2022

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RF Information Harvesting for Medium Access in Event-driven Batteryless Sensing

Hokke, N.H. (author), Sharma, Suryansh (author), Venkatesha Prasad, Ranga Rao (author), Mottola, L. (author), Narayana, S. (author), Rao, V.S. (author), Kouvelas, N. (author)

We present radio-frequency (RF) information harvesting, a chan-nel sensing technique that takes advantage of the energy in the wireless medium to detect channel activity at essentially no en-ergy cost. RF information harvesting is essential for event-driven wireless sensing applications using battery-less devices that har-vest tiny amounts of...

conference paper 2022

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Investigating Affective Responses toward In-Video Pedestrian Crossing Actions using Camera and Physiological Sensors

Rao, Shruti (author), Ghosh, Surjya (author), Pons Rodriguez, Gerard (author), Röggla, Thomas (author), El Ali, Abdallah (author), Cesar, Pablo (author)

Automatically inferring drivers' emotions during driver-pedestrian interactions to improve road safety remains a challenge for designing in-vehicle, empathic interfaces. To that end, we carried out a lab-based study using a combination of camera and physiological sensors. We collected participants' (N=21) real-time, affective (emotion self...

conference paper 2022

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Characterization, Modeling and Test of Synthetic Anti-Ferromagnet Flip Defect in STT-MRAMs

Wu, L. (author), Rao, Siddharth (author), Taouil, M. (author), Marinissen, Erik Jan (author), Kar, Gouri Sankar (author), Hamdioui, S. (author)

Understanding the manufacturing defects in magnetic tunnel junctions (MTJs), which are the data-storing elements in STT-MRAMs, and their resultant faulty behaviors are crucial for developing high-quality test solutions. This paper introduces a new type of MTJ defect: synthetic anti-ferromagnet flip (SAFF) defect, wherein the magnetization in...

conference paper 2021

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Characterization and Fault Modeling of Intermediate State Defects in STT-MRAM

Wu, L. (author), Rao, Siddharth (author), Taouil, M. (author), Marinissen, Erik Jan (author), Kar, Gouri Sankar (author), Hamdioui, S. (author)

Understanding the defects in magnetic tunnel junctions (MTJs) and their faulty behaviors are paramount for developing high-quality tests for STT-MRAM. This paper characterizes and models intermediate (IM) state defects in MTJs; IM state manifests itself as an abnormal third resistive state, apart from the two bi-stable states of MTJ. We...

conference paper 2021

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p-CARMA: Politely Scaling LoRaWAN

Kouvelas, N. (author), Rao, V.S. (author), Venkatesha Prasad, Ranga Rao (author), Tawde, G.C. (author), Langendoen, K.G. (author)

Long Range Wide Area Network (LoRaWAN) covers the needs of energy-constrained IoT-devices for operational longevity and extended communication range in a best-effort fashion. However, Lo- RaWAN’s minimalist design cannot handle the traffic from dense deployments with more than a few hundred devices connected to a single gateway, since each LoRa...

conference paper 2020

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Impact of Magnetic Coupling and Density on STT-MRAM Performance

Wu, L. (author), Rao, Siddharth (author), Taouil, M. (author), Marinissen, Erik Jan (author), Kar, Gouri Sankar (author), Hamdioui, S. (author)

As a unique mechanism for MRAMs, magnetic coupling needs to be accounted for when designing memory arrays. This paper models both intra- and inter-cell magnetic coupling analytically for STT-MRAMs and investigates their impact on the write performance and retention of MTJ devices, which are the data-storing elements of STT-MRAMs. We present...

conference paper 2020

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Device-Aware Test: A New Test Approach Towards DPPB Level

Fieback, M. (author), Wu, L. (author), Cardoso Medeiros, G. (author), Aziza, Hassen (author), Rao, S (author), Marinissen, Erik Jan (author), Taouil, M. (author), Hamdioui, S. (author)

This paper proposes a new test approach that goes beyond cell-aware test, i.e., device-aware test. The approach consists of three steps: defect modeling, fault modeling, and test/DfT development. The defect modeling does not assume that a defect in a device (or a cell) can be modeled electrically as a linear resistor (as the traditional approach...

conference paper 2019

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To Fly a Kite, Glider or Prop Wing?

Rao, A. (author), Crawford, C.A. (author)

conference paper 2015

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LES-based numerical analysis of surface-pressure fluctuations and unsteady thrust of a marine propeller

Tian, J. (author), Yang, H. (author), Zhang, Z. (author), Yuan, G. (author), Rao, Z. (author), Hua, H. (author)

conference paper 2014

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Microstructure evolution of Cr2AlC ceramic before and after oxidation induced crack healing

Rao, J. (author), Jia, D. (author), Duan, X. (author), Yang, Z. (author), Zhou, Y. (author), Ouyang, J. (author), Sloof, W.G. (author), Van der Zwaag, S. (author)

Abstract only.

conference paper 2013