نتایج جستجو برای: free shields

تعداد نتایج: 516642  

Background: The use and effectiveness of traditional lead gonad shields in pediatric pelvic radiography has been challenged by several literatures over the past two decades. The aim of this study was to develop a new radioprotective gonad shields to be use in pediatric pelvic radiography. Materials and Methods: The commercially available 0.06 mm lead equivalent bismuth garment has cropped squar...

2013
Hiroshi Kajihara Armand M. Kuris

Ovicides paralithodis sp. n. is described from the egg mass of the red king crab Paralithodes camtschaticus (Tilesius, 1815) from the Sea of Okhotsk, off Hokkaido, Japan, and Alaska, USA. Among four congeners, Ovicides paralithodis can be distinguished from Ovicides julieae Shields, 2001 and Ovicides davidi Shields and Segonzac, 2007 by having no eyes; from Ovicides jonesi Shields and Segonzac,...

2017
Christian Peeters Imre Foldi Danièle Matile-Ferrero Brian L. Fisher

Mutualisms between ants and sap-sucking insects generally involve clear benefits for both partners: the ants provide protection in exchange for honeydew. However, a single ant genus associates with armoured scale insects (Diaspididae) that do not excrete honeydew. We studied three colonies of Melissotarsus emeryi ants from two localities in Mozambique. Vast numbers of the diaspidid Morganella c...

Journal: :Journal of Nanomaterials 2022

Antifriction self-lubricating glass composite coatings of the Sic-Ni-Cu-Al-Si-C type additionally contain an aluminoborosilicate phase and structurally free MgC2, which forms α-graphite during thermolysis, synergistic effect causes modification friction surface due to formation antifriction layer. The influence structural components coating on their contribution properties is considered. It was...

2015

Background: Evidence suggests that children are more susceptible to radiation risks or hazards. In particular, their gonads are more sensitive to the effects of radiation, especially at or below reproductive age. Protecting the gonads of children and adults is of particular importance to the imaging. Aim: To investigate level of the use of gonad protection during paediatric abdomen and pelvic X...

2017
Adam J Terando Elsa Youngsteadt Emily K Meineke Sara G Prado

In light of global climate change, ecological studies increasingly address effects of temperature on organisms and ecosystems. To measure air temperature at biologically relevant scales in the field, ecologists often use small, portable temperature sensors. Sensors must be shielded from solar radiation to provide accurate temperature measurements, but our review of 18 years of ecological litera...

Journal: :Cahiers du monde russe 2002

Journal: :IEEE Transactions on Appiled Superconductivity 1998

2018
Parinaz Mehnati Mehran Arash Parisa Akhlaghi

The article aims at constructing protective composite shields for breasts in chest computed tomography and investigating the effects of applying these new bismuth composites on dose and image quality. Polyurethane and silicon with 5% of bismuth were fabricated as a protective shield. At first, their efficiency in attenuating the X-ray beam was investigated by calculating the total attenuation c...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید