نتایج جستجو برای: sandwich materials

تعداد نتایج: 446362  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Qi Li Feihua Liu Tiannan Yang Matthew R Gadinski Guangzu Zhang Long-Qing Chen Qing Wang

The demand for a new generation of high-temperature dielectric materials toward capacitive energy storage has been driven by the rise of high-power applications such as electric vehicles, aircraft, and pulsed power systems where the power electronics are exposed to elevated temperatures. Polymer dielectrics are characterized by being lightweight, and their scalability, mechanical flexibility, h...

2015
Portia Peters Steven Nutt Steven R. Nutt

An experimental approach, Applied Acoustics, Volume 71, Issue 2, February 2010, Pages 115-119, ISSN 0003-682X, http://dx.doi.org/10.1016/j.apacoust.2009.07.017. 1 Wave speeds of honeycomb sandwich structures: An experimental approach Portia Peters, Steven R. Nutt 1. University of Southern California, Materials Science, 3651 Watt Way #602, Los Angeles, CA 90089-0241, United States Abstract: In t...

Journal: : 2021

The present work relates to the synthesis and spectral properties of erbium sandwich type metal complexes containing tetraanthraquinoporphyrazine as well phthalocyanine fragments. By reacting tetraanthrachinoporphirazine (lutetium) acetate with excess phthalonitrile, 4-chloro, 4-bromophthalonitrile unsubstituted sandwich-type an unsymmetrical structure were obtained. compounds extracted from re...

Journal: :Aij Journal of Technology and Design 2022

We developed a hybrid SWP with organic and inorganic heat insulating materials as the core material verified performance of fire resistance mechanics during development process. By using both together, it exhibits better than alone. In particular, specifications fiber-reinforced plaster board plate, which was superior to rockwool in terms mechanics, also showed excellent ISO 13784-1 test.

Background and Objectives: Sulfate is one of the chemical pollutants in water that can cause adverse health effects such as digestive and blood problems at high concentrations in humans. Conversion of sulfate to substances such as hydrogen sulfide can corrode metal pipes. Therefore, the aim of this study was to investigate the effect of electrochemical sulfate removal using a sandwich panel car...

2008
Jennifer A. Hobbs

Large volume calorimeters are traditionally based on construction from high-density material or a “sandwich” construction of alternating layers of active and passive material. Dense scintillating material, made from materials such as BGO or lead-glass, is too costly to be used on a very large scale. In sandwich technology, energy resolution is often reduced due to a large fraction of the signal...

Journal: :jundishapur journal of chronic disease care 0
azadeh zangeneh pour zadeh ms student, department of midwifery, school of nursing and midwifery, ahvaz jundishapur university of medical sciences, ahvaz, iran mojgan javadnoori phd, assistant professor in reproductive health, department of midwifery, school of nursing and midwifery, ahvaz jundishapur university of medical sciences, ahvaz, iran; phd, assistant professor in reproductive health, department of midwifery, school of nursing and midwifery, ahvaz jundishapur university of medical sciences, ahvaz, iran parvin abedi phd, associated professor in community nutrition, department of midwifery, school of nursing and midwifery, ahvaz jundishapur university of medical sciences, ahvaz, iran amal saki malehi phd, assistant professor of biostatistic, department of biostatistics and epidemiology, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, iran

conclusions the current study revealed that a significant percentage of sandwich generation females have chronic diseases. results a statistically significant difference was found between the two groups in terms of the presence of chronic diseases (p = 0.001). there was a significant correlation between chronic diseases and number of children (p = 0.03), person receiving care (p = 0.004), educa...

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