Results 41 to 50 of about 852 (131)

Integrated water system simulation by considering hydrological and biogeochemical processes: model development, with parameter sensitivity and autocalibration [PDF]

Hydrology and Earth System Sciences, 2016
Integrated water system modeling is a feasible approach to understanding severe water crises in the world and promoting the implementation of integrated river basin management.
Y. Y. Zhang, Q. X. Shao, A. Z. Ye, H. T. Xing, J. Xia   +4 more
doaj   +1 more source

Stable Water Isotopes Improve Calibration and Flow Path Identification in Integrated Hydrological Models

Water Resources Research, Volume 62, Issue 7, July 2026.
Abstract Hydrological models often exhibit equifinality, where different parameter sets produce similar hydrometric outputs but alter internal catchment processes and partitioning. Incorporating new information amongst calibration targets helps narrow the range of viable models.
Omar Ashraf Nimr, Hannu Marttila, Anna Autio, Pertti Ala‐Aho   +3 more
wiley   +1 more source

Facilitating PTZ Camera Auto-Calibration to Be Noise Resilient With Two Images

IEEE Access, 2019
This paper presents a simple but effective technique to calibrate a PTZ (Pan/Tilt/Zoom) camera by using only two images for five intrinsic parameters: focal length, aspect ratio, the principle point coordinates and the distortion coefficient.
Rui Wang, Ran Huang, Jiaoru Yang
doaj   +1 more source

Vision-Based Automated Recognition and 3D Localization Framework for Tower Cranes Using Far-Field Cameras

Sensors, 2023
Tower cranes can cover most of the area of a construction site, which brings significant safety risks, including potential collisions with other entities.
Jiyao Wang, Qilin Zhang, Bin Yang, Binghan Zhang   +3 more
doaj   +1 more source

Estimation of effective porosity in large-scale groundwater models by combining particle tracking, auto-calibration and ¹⁴C dating [PDF]

Hydrology and Earth System Sciences, 2018
Effective porosity plays an important role in contaminant management. However, the effective porosity is often assumed to be constant in space and hence heterogeneity is either neglected or simplified in transport model calibration.
R. Meyer, P. Engesgaard, K. Hinsby, J. A. Piotrowski, T. O. Sonnenborg   +4 more
doaj   +1 more source

Rapid Free‐Breathing and Automated 2D Shimming of the Lung at 3T

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2737-2745, May 2026.
ABSTRACT Purpose To develop and validate a rapid, fully automated method for shimming of the lung. Methods For field mapping of the lung, a custom 2D RF spoiled gradient echo sequence was used offering sub‐millisecond echo times. At 3T, four echo‐shifted coronal images were acquired with a minimum TE of 0.57 ms and an inter‐echo spacing of 0.1 ms ...
Pavlos Panos, Grzegorz Bauman, Oliver Bieri   +2 more
wiley   +1 more source

T2$$ {\boldsymbol{T}}_{\mathbf{2}} $$‐Weighted Imaging of Water, Fat and Silicone

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2765-2775, May 2026.
ABSTRACT Purpose Magnetic resonance imaging (MRI) is a sensitive method for assessing silicone implant integrity, with T2$$ {T}_2 $$‐weighted imaging being essential for detecting abnormalities in surrounding tissue. Silicone breast imaging protocols often require multiple tailored sequences for species suppression and diagnostic contrast. We propose a
Aizada Nurdinova, Xuetong Zhou, Julio A. Oscanoa, Preya Shah, Kawin Setsompop, Bruce L. Daniel, Brian A. Hargreaves   +6 more
wiley   +1 more source

3D scene reconstruction from body‐worn camera video using 3DF Zephyr

Journal of Forensic Sciences, Volume 71, Issue 3, Page 1449-1465, May 2026.
Abstract Body‐worn cameras document crime scenes during initial law enforcement response, yet their potential for forensic reconstruction has not been empirically validated. Despite expanding global adoption, recorded video primarily serves qualitative documentation rather than quantitative measurement applications.
Yuening Chen, Eugene Liscio
wiley   +1 more source

Single‐Molecule Forster Resonance Energy Transfer With a Minimalistic 3D‐Printed Setup and Dyes in the Blue‐Green Spectral Region

ChemPhysChem, Volume 27, Issue 8, 28 April 2026.
Single‐molecule FRET enables nanometer‐scale insights into biomolecular structure and dynamics but often requires complex instrumentation. We present the FRET‐Brick, a minimalistic, 3D‐printed microspectroscopy platform using 488 nm continuous‐wave excitation and PMT detection.
Gabriel G. Moya Muñoz, Jorge R. Luna Piedra, Pazit Con, Mostofa Ataur Rohman, Siyu Lu, Thomas‐Otavio Peulen, Thorben Cordes   +6 more
wiley   +1 more source

Real‐Time Deep‐Learning Image Reconstruction and Instrument Tracking in MR‐Guided Biopsies

Journal of Magnetic Resonance Imaging, Volume 63, Issue 2, Page 475-483, February 2026.
ABSTRACT Background Transrectal in‐bore MR‐guided biopsy (MRGB) is accurate but time‐consuming, limiting clinical throughput. Faster imaging could improve workflow and enable real‐time instrument tracking. Existing acceleration methods often use simulated data and lack validation in clinical settings.
Constant R. Noordman, Lauren P. W. te Molder, Marnix C. Maas, Christiaan G. Overduin, Jurgen J. Fütterer, Henkjan J. Huisman   +5 more
wiley   +1 more source