Results 11 to 20 of about 346,026 (340)
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein +7 more
wiley +1 more source
A small footprint couch‐top support device for image‐guided radiotherapy of heavy patients
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose Patients with body weights close to or above 400 lbs present unique challenges in radiation therapy since the weight limit of most treatment couches decreases as the couch‐top extends toward the treatment gantry. The purpose of this work was to develop a small footprint couch‐top support platform to safely perform image‐guided ...
Huixiao Chen +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView., 2023 This study aims to explore the feasibility of using a structure inspired by the features of horsetail and human spine as the potential helmet liner, targeting at mitigation of acceleration‐induced injuries. A parametric study is conducted to investigate the effect of individual geometrical variables in the design, indicating its capability to reduce ...
Bing Leng +3 more
wiley +1 more source
Dynamic Responses of the Planetary Gear Mechanism Considering Dynamic Wear Effects
Lubricants, 2023 Gear wear is unavoidable and results in vibrations and decreased performance in a planetary gear system. In this work, the wear phenomenon of the gear teeth surface and the dynamic responses of the planetary gear mechanism are investigated through a ...
Zhengfeng Bai, Zhiyuan Ning
doaj +1 more source
Yuanzineng kexue jishu, 2023 Steam generator (SG) is the key component of primary and secondary circuits in pressurized water reactor (PWR) nuclear power plant. Its integrity is very important for the safe operation of PWR nuclear power plant.
CHU Qibao1,2;HUANG Qian3;ZHANG Mengyang4;JIANG Qinglei4;TAN Wei1
doaj +1 more source
Development of Tool Wear Standards and Wear Mechanism for Micro Milling Ti-6Al-4V Alloy
Metals, 2022 With the rapid development of high-precision-device technology, new demands are put forward for micro milling. The size effect and low cutting energy of micro milling make the process expensive and difficult, especially for Ti-6Al-4V alloys.
Tao Zheng +3 more
doaj +1 more source
Computational Design of Corrosion-resistant and Wear-resistant Titanium Alloys for Orthopedic Implants [PDF]
Materials Today Communications,2022,104465,ISSN 2352-4928, 2022 Titanium alloys are promising candidates for orthopedic implants due to their mechanical resilience and biocompatibility. Current titanium alloys in orthopedic implants still suffer from low wear and corrosion resistance. Here, we present a computational method for optimizing the composition of titanium alloys for enhanced corrosion and wear resistance
arxiv +1 more source
High Temperature Tribological Behavior of Borocarburized Layer on Q235 Steel
Medžiagotyra, 2021 A borocarburized layer was successfully fabricated on the surface of Q235 low-carbon steel via double glow treatment to improve the wear resistance at elevated temperature.
Zhengang YANG +5 more
doaj +1 more source
Hair resistance to mechanical wear [PDF]
Wear, 2021 Abstract Hair mechanical properties are primary indicators of hair integrity. Here we describe a methodology based on hair's resistance to mechanical wear to evaluate cosmetic treatments. Using a vibrational vortex cycle, we developed a protocol that relies on the plastic deformation and degradation of hair, due to frictional forces between hardened ...
Ribeiro, Artur +3 more
openaire +2 more sources
Wear properties of copper and copper composites powders consolidated by high-pressure torsion
Friction, 2019 The wear characteristics of Cu and Cu-SiC composite microsize powders consolidated by cold compaction combined with sintering or high-pressure torsion (HPT) were investigated.
Mohamed Ibrahim Abd El Aal
doaj +1 more source