A5040611434- Cryospheric studies and observations
- Climate change and permafrost
- Geology and Paleoclimatology Research
- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Advanced Radiotherapy Techniques
- Radiomics and Machine Learning in Medical Imaging
- Advanced Fiber Optic Sensors
- Winter Sports Injuries and Performance
- Optical Network Technologies
- Medical Imaging Techniques and Applications
- Arctic and Antarctic ice dynamics
- Climate variability and models
- Landslides and related hazards
- Photonic and Optical Devices
- Polar Research and Ecology
- Solid State Laser Technologies
- Hepatocellular Carcinoma Treatment and Prognosis
- MRI in cancer diagnosis
- AI in cancer detection
- Advanced X-ray and CT Imaging
- Radiation Therapy and Dosimetry
- Medical Imaging and Analysis
- Magnetic confinement fusion research
- Head and Neck Cancer Studies
University of North Carolina at Chapel Hill
2024-2025
The University of Texas MD Anderson Cancer Center
2017-2025
Victoria University of Wellington
2015-2024
United States Air Force Research Laboratory
2016-2024
University of North Carolina Health Care
2024
University of California, San Diego
2022-2023
The University of Texas Health Science Center at Houston
2017-2022
University of Houston
2021
U.S. Air Force Research Laboratory Directed Energy Directorate
2016-2019
University of Central Florida
2012-2016
Abstract Observations show that glaciers around the world are in retreat and losing mass. Internationally coordinated for over a century, glacier monitoring activities provide an unprecedented dataset of observations from ground, air space. Glacier studies generally select specific parts these datasets to obtain optimal assessments mass-balance data relating impact exercise on global sea-level fluctuations or regional runoff. In this study we overview analysis main observational compiled by...
Abstract. Knowledge of the ice thickness distribution glaciers and caps is an important prerequisite for many glaciological hydrological investigations. A wealth approaches has recently been presented inferring from characteristics surface. With Ice Thickness Models Intercomparison eXperiment (ITMIX) we performed first coordinated assessment quantifying individual model performance. set 17 different models showed that estimates can differ considerably – locally by a spread comparable to...
Abstract Glacier mass loss is recognized as a major contributor to current sea level rise. However, large uncertainties remain in projections of glacier on global and regional scales. We present an ensemble 288 area change for the 21st century based 11 models using up 10 general circulation four Representative Concentration Pathways (RCPs) boundary conditions. partition total uncertainty into individual contributions caused by models, RCPs, natural variability. find that emission scenario...
Abstract 1158 sentinel lymph nodes (SLNs), excised from patients with primary cutaneous melanoma, were assessed pathologically using histology immunohistochemistry (IHC) on all nodes, and RT‐PCR for Mart‐1 tyrosinase 55 nodes. was compared the IHC same The evaluation of progressively more detailed protocols modulated by results led to a procedure that consistently detects metastases in 34% submitted SLN biopsy melanomas vertical growth phase mean thickness 2.02 mm (range 0.25, regression, 19...
Abstract The sensitivity of glaciers to climatic change is key information in assessing the response and sea-level implications projected future warming. New Zealand are important globally as an example how maritime will contribute rise. A spatially distributed energy-balance model applied Brewster Glacier, Zealand, order calculate glacier mass balance, run-off climate change. successfully simulates four annual mass-balance cycles. Close half (52%) energy available for melt on supplied by...
The “mass balance sensitivity” of a glacier provides means for assessing its response to future warming and contribution sea level rise. Many studies have concluded that the first‐order control on mass sensitivity is climatic, where higher‐precipitation (and less continental) glaciers are most sensitive while lower‐precipitation more least sensitive. Southern Alps in New Zealand experience limited range continentality (9–13 K) but strong gradients precipitation (2.5–11 m −1 ). Using an...
Abstract Glaciers experienced worldwide retreat during the twentieth and early twenty first centuries, negative trend in global glacier mass balance since 1990s is predominantly a response to anthropogenic climate warming. The exceptional terminus advance of some glaciers recent warming thought relate locally specific conditions, such as increased precipitation. In New Zealand, at least 58 advanced between 1983 2008, Franz Josef Fox nearly continuously this time. Here we show that phase...
Glaciers offer the potential to reconstruct past climate over timescales from decades millennia. They are found on nearly every continent, and at Last Glacial Maximum, glaciers were larger in all regions Earth. The physics of glacier-climate interaction relatively well understood, glacier models can be used geological evidence extent. This lead significant insights regarding past, present, future climate. For example, modeling has demonstrated that near-ubiquitous global pattern retreat...
Background Confirming ablation completeness with sufficient ablative margin is critical for local tumor control following colorectal liver metastasis (CLM) ablation. An image-based confirmation method considering patient- and ablation-related biomechanical deformation an unmet need. Purpose To evaluate a deformable image registration (DIR) three-dimensional (3D) minimal (MAM) quantification the association disease progression CT-guided CLM Materials Methods This single-institution...
Research Article| February 01, 2006 Temperature change is the major driver of late-glacial and Holocene glacier fluctuations in New Zealand Brian Anderson; Anderson 1Antarctic Centre School Earth Sciences, Victoria University Wellington, PO Box 600, Search for other works by this author on: GSW Google Scholar Andrew Mackintosh Author Article Information Publisher: Geological Society America Received: 09 Aug 2005 Revision 20 Oct Accepted: 22 First Online: Mar 2017 Online ISSN: 1943-2682 Print...
Abstract Coverage of ice velocities in the central part Southern Alps, New Zealand, is obtained from feature tracking using repeat optical imagery 2002 and 2006. Precise orthorectification, co-registration correlation carried out freely available software COSI-Corr. This analysis, combined with short times between image acquisitions, has enabled to be captured even accumulation areas, where are lowest surface features ephemeral. The results indicate large for mountain glaciers (i.e. up ∼5 m...
Optical linewidth broadening through both white noise (WNS) and pseudo-random binary sequence (PBRS) phase modulation are effective techniques for suppressing stimulated Brillouin scattering (SBS) in high- power fiber amplifiers. However, detailed studies comparing coherent beam combining SBS suppression of these schemes have not been reported. In this study, a passive cutback experiment is performed the threshold enhancement factor PRBS WNS broadened seed as function length. Particularly,...
Alpine permafrost occurrence in maritime climates has received little attention, despite suggestions that may occur at lower elevations than continental climates. To assess the spatial and altitudinal limits of Southern Alps, we developed tested a catchment-scale distributed estimate. We used logistic regression to identify relationship between presence 280 active relict rock glacier sites independent variables a) mean annual air temperature b) potential incoming solar radiation snow free...
Radiomics studies require many patients in order to power them, thus are often combined from different institutions and using imaging protocols. Various have shown that protocols affect radiomics feature values. We examined whether data cohorts with controlled improved patient outcome models. retrospectively reviewed 726 CT 686 PET images head neck cancer patients, who were divided into training or independent testing cohorts. For each patient, features preprocessing calculated two clinical...
Accurate clinical target volume (CTV) delineation is essential to ensure proper tumor coverage in radiation therapy. This a particularly difficult task for head-and-neck cancer patients where detailed knowledge of the pathways microscopic spread necessary. paper proposes solution auto-segment these volumes oropharyngeal using two-channel 3D U-Net architecture. The first channel feeds network with patient's CT image providing anatomical context, whereas second provides location and...