Results 91 to 100 of about 8,393,375 (379)

Commissioning of Halcyon enhanced leaf model in the Eclipse treatment planning system: Focus on simple slit fields and VMAT dose calculation

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The dual‐layer multileaf collimator (MLC) in Halcyon adds complexities to the dose calculation process owing to the variability of dosimetric characteristics with leaf motion. Recently, an enhanced leaf model (ELM) was developed to refine the MLC model in the Eclipse treatment planning system. This study investigates the performance of
Ryohei Miyasaka, Mari Shirai, Mitsunobu Igari, Yume Kojima, Yuki Kozawa, Toru Kawachi, Ryusuke Hara   +6 more
wiley   +1 more source

Large Ensemble Diagnostic Evaluation of Hydrologic Parameter Uncertainty in the Community Land Model Version 5 (CLM5)

Journal of Advances in Modeling Earth Systems, 2023
Land surface models such as the Community Land Model version 5 (CLM5) seek to enhance understanding of terrestrial hydrology and aid in the evaluation of anthropogenic and climate change impacts.
Hongxiang Yan, Ning Sun, Hisham Eldardiry, Travis B. Thurber, Patrick M. Reed, Keyvan Malek, Rohini Gupta, Daniel Kennedy, Sean C. Swenson, Zhangshuan Hou, Yanyan Cheng, Jennie S. Rice   +11 more
doaj   +1 more source

Uncertainty for calculating transport on Titan: a probabilistic description of bimolecular diffusion parameters [PDF]

, 2015
Bimolecular diffusion coefficients are important parameters used by atmospheric models to calculate altitude profiles of minor constituents in an atmosphere. Unfortunately, laboratory measurements of these coefficients were never conducted at temperature conditions relevant to the atmosphere of Titan.
arxiv   +1 more source

Stereotactic radiotherapy for metastatic brain tumors: A comparative analysis of dose distributions among VMAT, Helical TomoTherapy, CyberKnife, Gamma Knife, and ZAP‐X

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki, Masahide Saito, Ryutaro Nomura, Hikaru Nemoto, Naoto Yanagisawa, Ryuma Sawada, Zennosuke Mochizuki, Naoki Sano, Hiroshi Onishi, Hiroshi Takahashi   +9 more
wiley   +1 more source

A Novel Robust H_∞ Control Approach Based on Vehicle Lateral Dynamics for Practical Path Tracking Applications

World Electric Vehicle Journal
This paper proposes a robust lateral control scheme for the path tracking of autonomous vehicles. Considering the discrepancies between the model parameters and the actual values of the vehicle and the fluctuation of parameters during driving, the norm ...
Jie Wang, Baichao Wang, Congzhi Liu, Litong Zhang, Liang Li   +4 more
doaj   +1 more source

Influences of aerodynamic parameter uncertainties for UFSC based flight trajectory generation

SICE Journal of Control, Measurement, and System Integration, 2023
This paper discusses the model identification of a biplane which has superior lift generation capability and the influences of identification errors on trajectory generation using updating final-state control (UFSC). Aerodynamic parameters are identified
Fumiaki Hirahara, Kandai Uchida, Susumu Hara   +2 more
doaj   +1 more source

Impact of bulk density assignment of bone on MRI‐based abdominal region radiotherapy planning for MR‐linac workflow

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The purpose of the present study was to evaluate the impact of bone relative electron density (rED) assignment on radiotherapy planning for the abdominal region. Methods Twenty patients who received abdominal radiotherapy using MR‐Linac and underwent magnetic resonance imaging (MRI) and computed tomography (CT) simulation were analyzed.
Kota Abe, Masato Tsuneda, Yukio Fujita, Yukinao Abe, Takashi Uno   +4 more
wiley   +1 more source

Impact of Different Potential Evaporation Estimation Methods on Runoff Simulation of Weihe River on the Loess Plateau

Renmin Zhujiang, 2020
Evapotranspiration is an important part of the surface hydrologicalprocesses, and potential evapotranspiration has an important impact on thesimulation and prediction of the hydrological process.
WU Haizhe, LIU Dengfeng, HUANG Qiang, YANG Qian, LIN Mu, PAN Baozhu   +5 more
doaj  

Uncertainty in hydrological analysis of climate change: multi-parameter vs. multi-GCM ensemble predictions

Scientific Reports, 2019
The quantification of uncertainty in the ensemble-based predictions of climate change and the corresponding hydrological impact is necessary for the development of robust climate adaptation plans.
Y. Her, S. Yoo, Jae-Pil Cho, Syewoon Hwang, Jaehak Jeong, Chounghyun Seong   +5 more
semanticscholar   +1 more source

Monte Carlo modeling of radiation dose from radiation therapy with superficial x‐rays

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction Superficial x‐rays (50–100 kVp) are used for treating non‐melanoma skin cancer and intraoperative radiation therapy (IORT). At these energies, the photoelectric effect significantly increases absorbed dose to bone compared to soft tissue.
Reham Barghash, Tiffany W. Martin, Amber R. Prebble, Del Leary   +3 more
wiley   +1 more source