A5101875767- Advancements in Battery Materials
- Advanced DC-DC Converters
- Advanced Battery Materials and Technologies
- Silicon Carbide Semiconductor Technologies
- Glaucoma and retinal disorders
- Extraction and Separation Processes
- Methane Hydrates and Related Phenomena
- Advanced Battery Technologies Research
- Retinal Diseases and Treatments
- Geophysics and Gravity Measurements
- Topic Modeling
- RFID technology advancements
- Optical Coherence Tomography Applications
- Advanced Database Systems and Queries
- GNSS positioning and interference
- Earthquake Detection and Analysis
- Opioid Use Disorder Treatment
- GaN-based semiconductor devices and materials
- Photoacoustic and Ultrasonic Imaging
- Ophthalmology and Visual Impairment Studies
- Cloud Computing and Resource Management
- Retinal and Macular Surgery
- Adversarial Robustness in Machine Learning
- Text Readability and Simplification
- Induction Heating and Inverter Technology
University of Michigan
2020-2025
Navitas Systems (United States)
2016-2024
University of Arizona
2023
Icahn School of Medicine at Mount Sinai
2023
Georgia Institute of Technology
2023
Massachusetts Institute of Technology
2020-2022
Qorvo (United States)
2022
Baylor College of Medicine
2015-2021
Pennsylvania State University
2018-2021
University of Minnesota
2021
BACKGROUND Mental health worsened in adolescents and young adults after the coronavirus disease 2019 (COVID-19) outbreak March 2020, but whether antidepressant dispensing to this population changed is unknown. METHODS We identified prescriptions dispensed US individuals aged 12 25 years from 2016 2022 using IQVIA Longitudinal Prescription Database, an all-payer national database. The outcome was monthly rate, defined as number of with ≥1 prescription per 100 000 people. fitted linear...
Both high switching frequency and efficiency are critical in reducing power adapter size. The active clamp flyback (ACF) topology allows zero voltage soft (ZVS) under all line load conditions, eliminates leakage inductance snubber losses, enables density conversion. Traditional ACF ZVS operation relies on the resonance between a small primary-side clamping capacitor, which leads to increased rms current conduction loss. This also causes oscillatory output rectifier impedes implementation of...
Tumor associated neutrophils (TANs) are frequently detected in triple-negative breast cancer (TNBC). Recent studies also reveal the importance of promoting tumor progression and metastasis during cancer. However, mechanisms regulating neutrophil trafficking to tumors less clear. We sought determine whether is determined directly by malignant potential cells. found that conditioned media (TCM) harvested from highly aggressive, metastatic TNBC cells induced a polarized morphology robust...
This study uses data from an all-payer database of prescriptions dispensed in US retail pharmacies to assess trends buprenorphine initiation and retention during 2016-2022.
Linked In is among the largest social networking sites in world. As company has grown, our core data sets and request processing requirements have grown as well. this paper, we describe a few selected infrastructure projects at that helped us accommodate increasing scale. Most of those build on existing open source are themselves available source. The covered paper include: (1) Voldemort: scalable fault tolerant key-value store, (2) Data bus: framework for delivering database changes to...
Abstract This study reports the development of prototype swept-source optical coherence tomography (SS-OCT) technology for imaging anterior eye. Advances in vertical-cavity surface-emitting laser (VCSEL) light sources, signal processing, optics and mechanical designs, enable a unique combination high speed, long range, deep penetration that addresses challenges eye imaging. We demonstrate SS-OCT with 325 kHz A-scan rate, 12.2 µm axial resolution (in air), 15.5 mm depth range air) at 1310 nm...
Three principal ER quality-control mechanisms, namely, the unfolded protein response, ER-associated degradation (ERAD), and ER-phagy are each important for maintenance of homeostasis, yet how they integrated to regulate homeostasis organellar architecture in vivo is largely unclear. Here we report intricate crosstalk among 3 pathways, centered around SEL1L-HRD1 complex ERAD, regulation organization β cells. ERAD deficiency cells triggers activation autophagy, at least part, via IRE1α (an...
For a variety of switching power topologies, especially modern soft-switching or resonant designs, half-bridge circuits are essential, ubiquitous building blocks. Operating these circuits-i.e., providing and signal to floating high-side switch at very high frequencies-can shrink magnetics enable dramatic reduction in size, cost, weight while delivering faster charging. However, such frequency increases have eluded the industry for decades as silicon (Si) devices been too slow suffered from...
Both high switching frequency and efficiency are critical in reducing power adapter size. The active clamp flyback (ACF) topology allows zero voltage soft under all line load conditions, eliminating leakage inductance snubber losses. Using enhanced mode GaN switches, an optimized can enable 5-10x higher frequency, while improving efficiency. This paper analyzes a ACF operating conduction mode. Detailed equivalent circuits analytical models provided to explain operation principles current...
Swept source optical coherence tomography (SS-OCT) enables volumetric imaging of subsurface structure. However, applications requiring wide fields view (FOV), rapid imaging, and higher resolutions have been challenging because multi-MHz axial scan (A-scan) rates are needed. We describe a microelectromechanical systems vertical cavity surface-emitting laser (MEMS-VCSEL) SS-OCT technology for A-scan 2.4 3.0 MHz. Sweep to sweep calibration resampling performed using dual channel acquisition the...
Satellite velocity determination using the broadcast ephemeris is discussed and it pointed out that conventional rotation matrix method involves a complicated process of computation. This paper proposes an alternative simple differentiator to derive satellite Earth-Centred-Earth-Fixed (ECEF) from ECEF positions are calculated standard ICD-GPS-200 algorithm. The proposed algorithm simplifies transformation procedure, therefore provides good alternative. It demonstrated ±1 mm/s per axis...
During the coronavirus disease 2019 (COVID-19) pandemic, eye care professionals caring for patients with sight-threatening diseases, such as glaucoma, have had to determine whether some patient appointments could safely get postponed, weighing risk that patient's glaucoma worsen during interim vs morbidity of acquiring COVID-19 while seeking ophthalmic care. They also need prioritize appointment rescheduling ramp-up phase (when pandemic-associated service reductions are eased).To describe a...
This cross-sectional study investigates the rate and dosing of opioid prescriptions among US surgeons from 2016 to 2022.
Precis: Current optical coherence tomography normative sample data may not represent diverse human optic nerve anatomy to accurately classify all individuals with true glaucomatous neuropathy. Purpose: To compare head (ONH) measurements between published values from an (OCT) database and a more cohort of healthy individuals. Patients Methods: ONH parameters participants the Michigan Screening Intervention for Glaucoma Eye Health through Telemedicine (MI-SIGHT) program Topcon Maestro-1 were...
High switching frequency and high efficiency are critical in reducing power adapter size. The active clamp flyback (ACF) allows soft under all line load conditions, eliminating leakage inductance snubber losses. This paper discusses key design considerations for density ACF converters by looking into ZVS condition, RMS current reduction, EMI optimization. Current-dip effect secondary resonant scheme found to significantly improve efficiency. GaN ICs, with low output charge & integrated drive...
The first high voltage Gallium Nitride (GaN) switches to appear in the market were based on depletion-mode HEMT (dMode FET) technology. This requires either a complex gate driver manage negative threshold or low FET cascode configuration. lack of direct control GaN switch and need for expensive multichip packaging has delayed adoption power stage off-line applications [1]. As today, monolithic integration enhancement-mode (eMode with logic can offer significant benefits driving performance,...
Background U.S. data on opioid prescribing by dentists are limited to 2019. More recent needed understand the effect of COVID-19 outbreak dental prescribing, characterize current practices, and determine if stewardship initiatives still warranted. Objective To evaluate association between rate Methods During February—April 2023, authors conducted a cross-sectional analysis IQVIA Longitudinal Prescription Database, which reports 92% prescriptions dispensed in retail pharmacies. The calculated...