A5022767483- Indoor and Outdoor Localization Technologies
- Non-Invasive Vital Sign Monitoring
- Complex Network Analysis Techniques
- Hand Gesture Recognition Systems
- Advanced Malware Detection Techniques
- Caching and Content Delivery
- User Authentication and Security Systems
- Interactive and Immersive Displays
- Network Security and Intrusion Detection
- EEG and Brain-Computer Interfaces
- Gaze Tracking and Assistive Technology
- Tactile and Sensory Interactions
- Advanced Sensor and Energy Harvesting Materials
- Opinion Dynamics and Social Influence
- Obstructive Sleep Apnea Research
- Biosensors and Analytical Detection
- Speech and Audio Processing
- 3D Printing in Biomedical Research
- Microfluidic and Capillary Electrophoresis Applications
- Heart Rate Variability and Autonomic Control
- Opportunistic and Delay-Tolerant Networks
- Advanced biosensing and bioanalysis techniques
- Pancreatic function and diabetes
- Bluetooth and Wireless Communication Technologies
- Context-Aware Activity Recognition Systems
Dartmouth College
2024-2025
University of Colorado Boulder
2017-2024
Dartmouth Hospital
2024
University of Oxford
2020-2023
Bạch Mai Hospital
2023
University of Colorado System
2016-2022
University of Trento
2021-2022
University of California, Irvine
2019-2022
Icahn School of Medicine at Mount Sinai
2022
De Montfort University
2022
Smart energy in buildings is an important research area of Internet Things (IoT). Buildings as parts the smart grids, their efficiency vital for environment and global sustainability. Using a LEED-gold-certificated green office building, we built unique IoT experimental testbed our building intelligence research. We first monitor collect one-year-long usage data then systematically evaluate analyze them. The results show that due to centralized static controls, actual running may not be...
Beyond their benign uses, civilian drones have increasingly been used in problematic ways that stirred concern from the public and authorities. While many anti-drone systems proposed to take them down, such often rely on a fundamental assumption presence of drone has already detected is known defender. However, there lack an automated cost-effective detection system. In this paper, we investigate system designed tao autonomously detect characterize using radio frequency wireless signals....
This work addresses the fundamental problem of distinguishing between a driver and passenger using mobile phone, which is critical input to enable numerous safety interface enhancements. Our detection system leverages existing car stereo infrastructure, in particular speakers Bluetooth network. acoustic approach has phone send series customized high frequency beeps via stereo. The are spaced time across left, right, if available, front rear speakers. After sampling beeps, we use sequential...
Drones are increasingly flying in sensitive airspace where their presence may cause harm, such as near airports, forest fires, large crowded events, secure buildings, and even jails. This problem is likely to expand given the rapid proliferation of drones for commerce, monitoring, recreation, other applications. A cost-effective detection system needed warn cases. In this paper, we explore feasibility inexpensive RF-based drones. We examine whether physical characteristics drone, body...
Sepsis due to antimicrobial resistant pathogens is a major health problem worldwide. The inability rapidly detect and thus treat bacteria with appropriate agents in the early stages of infections leads excess morbidity, mortality, healthcare costs. Here we report rapid diagnostic platform that integrates novel one-step blood droplet digital PCR assay high throughput 3D particle counter system potential perform bacterial identification antibiotic susceptibility profiling directly from whole...
We present CapBand, a battery-free hand gesture recognition wearable in the form of wristband. The key challenges creating such system are (1) to sense useful gestures at ultra-low power so that device can be powered by limited energy harvestable from surrounding environment and (2) make work reliably without requiring training every time user puts on successive capacitance sensing, an sensing technique, capture small skin deformations due muscle tendon movements user's wrist, which...
Abstract Multiplexed mRNA profiling in the spatial context provides new information enabling basic research and clinical applications. Unfortunately, existing transcriptomics methods are limited due to either low multiplexing or complexity. Here, we introduce a spatialomics technology, termed Multi Omic Single-scan Assay with Integrated Combinatorial Analysis (MOSAICA), that integrates situ labeling of protein markers cells tissues combinatorial fluorescence spectral lifetime encoded probes,...
Diabetes affects millions in the US, causing elevated blood glucose levels that could lead to complications like kidney failure and heart disease. Recent development of continuous monitors has enabled a minimally invasive option, but discomfort social factors highlight need for noninvasive alternatives diabetes management. We propose portable sensing system based on glucose's optical activity property which rotates linearly polarized light depending its concentration level. To enable form...
This paper presents the design and evaluation of a novel distributed shared hosting approach, DMap, for managing dynamic identifier to locator mappings in global Internet. DMap is foundation fast name resolution service necessary enable emerging Internet services such as seamless mobility support, content delivery cloud computing. Our approach distributes among Autonomous Systems (ASs) by directly applying K>1 consistent hash functions on produce network addresses AS gateway routers at which...
Abstract Cells may be captured and released using a photodegradable hydrogel (photogel) functionalized with antibodies. Photogel substrates were used to first isolate human CD4 or CD8 T‐cells from heterogeneous cell suspension then release desired cells groups of by UV‐induced photodegradation. Flow cytometry analysis the retrieved revealed approximately 95 % purity T‐cells, suggesting that this substrate had excellent specificity. To demonstrate possibility sorting according their function,...
In this work, we propose for the first time an autonomous system, called WiSpiro, that continuously monitors a person's breathing volume with high resolution during sleep from afar. WiSpiro relies on phase-motion demodulation algorithm reconstructs minute chest and abdominal movements by analyzing subtle phase changes cause to continuous wave signal sent 2.4 GHz directional radio. These are mapped volume, where mapping relationship is obtained via short training process. To cope body...
This paper introduces LIBS, a light-weight and inexpensive wearable sensing system, that can capture electrical activities of human brain, eyes, facial muscles with two pairs custom-built flexible electrodes each which is embedded on an off-the-shelf foam earplug. A supervised non-negative matrix factorization algorithm to adaptively analyze extract these bioelectrical signals from single mixed in-ear channel collected by the sensor also proposed. While LIBS enable wide class low-cost...
Frequent blood pressure (BP) assessment is key to the diagnosis and treatment of many severe diseases, such as heart failure, kidney hypertension, hemodialysis. Current "gold-standard'' BP measurement techniques require complete blockage flow, which causes discomfort disruption normal activity when done repetitively frequently. Unfortunately, patients with hypertension or hemodialysis often have get their measured every 15 minutes for a duration 4-5 hours more. The wearing cumbersome limited...
In this paper, we consider the problem of tracking fine-grained speeds variations vehicles using signal strength traces from GSM enabled phones. Existing speed estimation techniques mobile phone signals can provide longer-term averages but cannot track short-term variations. Understanding variations, however, is important in a variety traffic engineering applications-for example, it may help distinguish slow due to lights congestion when collecting real time information. Using phones such...
As we are surrounded by an ever-larger variety of post-PC devices, the traditional methods for identifying and authenticating users have become cumbersome time-consuming. In this paper, present a capacitive communication method through which device can recognize who is interacting with it. This exploits touchscreens, now used in laptops, phones, tablets, as signal receiver. The that identifies user be generated small transmitter embedded into ring, watch, or other artifact carried on human...
Current cancer detection systems lack the required sensitivity to reliably detect minimal residual disease (MRD) and recurrence at earliest stages when treatment would be most effective. To address this issue, we present a novel liquid biopsy approach that utilizes an integrated comprehensive droplet digital (IC3D) PCR system which combines microfluidic partitioning, fluorescent multiplex chemistry, our rapid 3D, large-volume counting technology. The IC3D ddPCR assay can cancer-specific,...
This paper introduces an algorithm that estimates the speed of a mobile phone by matching time-series signal strength data to known trace from same road. Knowing phone's is useful, for example, estimate traffic congestion or other transportation performancemetrics. The proposed algorithmcan be implemented in carrier's infrastructure with Network Measurement Reports obtained base station on readings handset and depending implementation choices, promises lower energy consumption than Global...
This paper explores a new wearable system, called TYTH, that enables novel form of human computer interaction based on the relative location and between user's tongue teeth. TYTH allows its user to interact with computing system by tapping their is analogous using finger type keypad except substitutes for teeth keyboard. We study neurological anatomical structures design so obtrusiveness social awkwardness caused minimized while maximizing accuracy sensing sensitivity. From behind ears,...
Microsleep, caused by sleep deprivation, apnea, and narcolepsy, costs the U.S.'s economy more than $411 billion/year because of work performance reduction, injuries, traffic accidents. Mitigating microsleep's consequences require an unobtrusive, reliable, socially acceptable microsleep detection solution throughout day, every day. Unfortunately, existing solutions do not meet these requirements.
Drones are increasingly disrupting sensitive airspace around airports, as evidenced by the recent shutdown of Gatwick Airport for over a day drone incursion, well other incidents at Dubai airport, one busiest airports in world. As result, there is heightened interest being able to detect and track drones. This paper explores system that can use cost-effective passive RF-based approach determine from which direction approaching its location, also controller transmitting controller's location....
Excerpted from "Matthan: Drone Presence Detection by Identifying Physical Signatures in the Drone's RF Communication," MobiSys 2017, Proceedings of 15th Annual ACM International Conference on Mobile Systems, Applications, and Services, with permission. https://dl.acm.org/citation.cfm?id=3081354 © 2017. The rapidly increasing attention regarding drone privacy security issues requires a robust solution both detecting characterizing unauthorized drones. We have designed RF-based, cost-effective...
The mechanism by which membrane-bound Bcl-2 inhibits the activation of cytoplasmic procaspases is unknown. Here we characterize an intracellular, membrane-associated form procaspase-3 whose controlled Bcl-2. Heavy membranes isolated from control cells contained a spontaneously activatable caspase-3 zymogen. In contrast, in overexpressing cells, although zymogen was still associated with heavy membranes, its spontaneous blocked. However, expression had little effect on levels caspase activity...
This paper describes and compares alternative architectures for achieving the functional goals of name oriented networking. The CCN (content-centric network) scheme proposed by Van Jacobson is contrasted with hybrid address based routing in conjunction MobilityFirst (MF) future Internet architecture. In a network, routers forward data directly on content names (such as URNs), elegant efficient retrieval files; framework can also be extended to other communications services such VoIP. MF...
This work addresses the fundamental problem of distinguishing between a driver and passenger using mobile phone, which is critical input to enable numerous safety interface enhancements. Our detection system leverages existing car stereo infrastructure, in particular, speakers Bluetooth network. acoustic approach has phone send series customized high frequency beeps via stereo. The are spaced time across left, right, if available, front rear speakers. After sampling beeps, we use sequential...