Results 81 to 90 of about 1,250,127 (301)

Roe-type schemes for shallow water magnetohydrodynamics with hyperbolic divergence cleaning [PDF]

arXiv, 2014
We discuss Roe-type linearizations for non-conservative shallow water magnetohydrodynamics without and with hyperbolic divergence cleaning.
arxiv  

Assessing proton plans with three different beam delivery systems versus photon plans for head and neck tumors

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To compare plan quality among photon volumetric modulated arc therapy (VMAT) and intensity‐modulated proton therapy (IMPT) with robustness using three different proton beam delivery systems with various spot size (σ) ranges: cyclotron‐generated proton beams (CPBs) (σ: 2.7–7.0 mm), linear accelerator proton beams (LPBs) (σ: 2.9–5.5 mm),
Tara Gray, Chieh‐Wen Liu, Saeed Ahmed, Anna Maria Kolano, Jeremy Donaghue, Shlomo Koyfman, Neil Woody, Shauna R. Campbell, Jonathan B. Farr, Ping Xia   +9 more
wiley   +1 more source

Economic Growth, Climate Change and Clean Energy in a Post- COVID Era

International Journal of Energy Economics and Policy
This study analyzes how clean technology, including electric vehicles, clean cooking and lighting fuels, renewable energy, and renewable electricity generation, might assist to reduce climate change and promote sustainable development.
Romanus Osabohien, Amar Hisham Jaaffar, Doddy Setiawan, Amechi E. Igharo   +3 more
doaj   +1 more source

In-pipe Robotic System for Pipe-joint Rehabilitation in Fresh Water Pipes [PDF]

arXiv, 2019
The robot's objective is to rehabilitate the pipe joints of fresh water supply systems by crawling into water canals and applying a restoration material to repair the pipes. The robot's structure consists of six wheeled-legs, three on the front separated 120{\deg} and three on the back in the same configuration, supporting the structure along the ...
arxiv  

Does dose calculation algorithm affect the dosimetric accuracy of synthetic CT for MR‐only radiotherapy planning in brain tumors?

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study compares the dosimetric accuracy of deep‐learning‐based MR synthetic CT (sCT) in brain radiotherapy between the Analytical Anisotropic Algorithm (AAA) and AcurosXB (AXB). Additionally, it proposes a novel metric to predict the dosimetric accuracy of sCT for individual post‐surgical brain cases.
Jeffrey C. F. Lui, Francis K. H. Lee, C. C. Law, James C. H. Chow   +3 more
wiley   +1 more source

Fix Desalination System Technology as Development of Creative and Innovative Capabilities of Youth Community

Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement), 2019
Community service activity is conducted in the region of KKN-PPM Universitas Maritim Raja Ali Haji (UMRAH) in the Malang Rapat Village, Bintan Regency.  Malang Rapat Village was chosen because of the location on the coastal area and have a concern about ...
Eko Prayetno, Risandi Dwirama Putra, Dedy Kurniawan, Edwin Ghutowo, Soedrajad Haryo Adji, Ricky Try Noer Hidayah, Adih Adih   +6 more
doaj   +1 more source

Active Vapor-Based Robotic Wiper [PDF]

arXiv, 2021
This paper presents a method for estimating normals of mirrors and transparent objects challenging for cameras to recognize. We propose spraying water vapor onto mirror or transparent surfaces to create a diffuse reflective surface. Using an ultrasonic humidifier on a robotic arm, we apply water vapor to the target object's surface, forming a cross ...
arxiv  

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab, Michael Lamey, Andrew Jirasek, Michael Kudla, Nathan Becker, Benjamin Mou, Derek Hyde   +6 more
wiley   +1 more source

Recent advances in the use of biogenic nanomaterials and photocatalysts for wastewater treatment: challenges and future prospects

Frontiers in Nanotechnology
In many parts of the world, the availability of clean water is almost an impossible task owing to the intrusion of contaminants in flowing or stagnant streams which renders them unsafe for use by man.
Samuel Eshorame Sanni, Samuel Eshorame Sanni, Babalola Aisosa Oni, Emeka Emmanuel Okoro, Shivani Pandya, Shivani Pandya   +5 more
doaj   +1 more source

Artificial Neural Networks and Support Vector Machines for Water Demand Time Series Forecasting [PDF]

arXiv, 2007
Water plays a pivotal role in many physical processes, and most importantly in sustaining human life, animal life and plant life. Water supply entities therefore have the responsibility to supply clean and safe water at the rate required by the consumer.
arxiv