Results 81 to 90 of about 312,342 (358)

Radiation in medicine: Origins, risks and aspirations. [PDF]

, 2014
The use of radiation in medicine is now pervasive and routine. From their crude beginnings 100 years ago, diagnostic radiology, nuclear medicine and radiation therapy have all evolved into advanced techniques, and are regarded as essential tools across ...
Donya, M, ElGuindy, A, Firmin, D, Radford, M, Yacoub, MH   +4 more
core   +1 more source

A Novel Approach to Produce Metal–Metal Composites by Leveraging Immiscibility: Laser Powder Bed Fusion of Nanosilver‐Dispersed Titanium

Advanced Engineering Materials, EarlyView.
Incorporating nanosized silver into titanium for antimicrobial materials exploits the metastable miscibility gap between silver and titanium. Silver nanoparticles are synthesized via pulsed laser ablation in liquid. Silver addition refines the microstructure, increases hardness by 30%, and reduces Staphylococcus capitis microbial adhesion by 70%, with ...
Hamed Shokri, Silja‐Katharina Rittinghaus, Janett Schmelzer, Jessica Bertrand, Bilal Gökce   +4 more
wiley   +1 more source

Maillard Type Reaction for Electroless Copper Plating onto Ceramic Nanoparticles

Advanced Engineering Materials, EarlyView.
This work presents the manufacturing of copper‐plated ceramic nanoparticles in an environmentally friendly way. Supported by organic functionalizations with pectin an electroless plating step can be performed. Sustainable reagents like xylose, and several amino acids are used for the reduction process.
Lukas Mielewczyk, Julia Grothe, Stefan Kaskel, Heinrich von Lintel, Katja Eichmann, Katrin Jahns, Avinash Hariharan, Abdelrahman Elsayed, Ulrich Krupp   +8 more
wiley   +1 more source

The Role of Gender in the Importance of Risk Factors for Coronary Artery Disease

Cardiology Research and Practice, 2020
Identification of risk factors and their importance in different genders is essential in order to prevent, diagnose, and manage coronary artery disease (CAD) properly.
Farshid Gheisari, Melika Emami, Hadi Raeisi Shahraki, Saeid Samipour, Parastoo Nematollahi   +4 more
doaj   +1 more source

Galaxies as Fluctuations in the Ionizing Background Radiation at Low Redshift [PDF]

, 2003
Some Lyman continuum photons are likely to escape from most galaxies, and these can play an important role in ionizing gas around and between galaxies, including gas that gives rise to Lyman alpha absorption.
Baes, Maarten, Davies, Jonathan I., Evans, Rhodri, Gunesch, Roland, Linder, Suzanne M., Roberts, Sarah, Sabatini, Sabina, Smith, Rodney   +7 more
core   +4 more sources

Development of a Novel Processing Route for Dispersoid/Precipitation‐Strengthened High Conductive Copper Alloys by Using Metalized Nanoceramics in Additive Manufacturing

Advanced Engineering Materials, EarlyView.
This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel, Abdelrahman Elsayed, Lukas Mielewczyk, Katja Eichmann, Julia Grothe, Ulrich Krupp, Avinash Hariharan, Katrin Jahns   +7 more
wiley   +1 more source

Does Exposure to Static Magnetic Fields Generated by Magnetic Resonance Imaging Scanners Raise Safety Problems for Personnel?

Journal of Biomedical Physics and Engineering, 2018
MRI workers are occupationally exposed to static and time-varying gradient magnetic fields. While the 24-hour time-averaged exposure to static magnetic fields is about a few mT, the maximum static field strength can be as high as 500 mT during patient ...
A Ghadimi-Moghadam, S M J Mortazavi, A Hosseini-Moghadam, M Haghani, S Taeb, M A Hosseini, N Rastegariyan, F Arian, L Sanipour, S Aghajari, S A R Mortazavi, A Soofi, M R Dizavandi   +12 more
doaj  

Low‐Activation Compositionally Complex Alloys for Advanced Nuclear Applications—A Review

Advanced Engineering Materials, EarlyView.
Low‐activation compositionally complex alloys (LACCAs) are advanced metallic materials primarily composed of low‐activation elements, offering advantages such as rapid compliance with operational standards and safe recyclability. This review highlights their potential for extreme high‐temperature irradiation environments as structural materials for ...
Yangfan Wang, Hanliang Zhu, Zhiyang Wang, Zhijun Qiu, Xiao Wang, Zengxi Pan, Hongtao Zhu, Mingxing Zhang, Huijun Li   +8 more
wiley   +1 more source

A New Stethoscope Design with Unique Characteristics and Development in Medical Device

Journal of Biomedical Physics and Engineering, 2018
As regards the significant role of stethoscopes in the diagnosis of congenital and adventitious heart diseases and prevention of irreparable complications of these diseases, the quality of hearing sound of these stethoscopes by a physician has a ...
Ghahramanifar M., Haghani M., Ghadimi Moghadam A., Ghadimi Moghadam A. K.   +3 more
doaj   +1 more source

Assessment of humoral immunity in workers occupationally exposed to low levels of ionizing radiation [PDF]

Background: The aim of this study was investigating the effect of low levels of ionizing radiation on immunoglobulin, complement levels in radiology workers occupationally exposed to ionizing radiation.
تبرائی, یاسر, رجائی اسكوئی, مهرانگیز, رفاهی, سهیلا, پورعیسی, مسعود   +3 more
core   +1 more source