Premature infants (i.e., those born before the 33rd gestational week, generally with low birth weights) have been shown to have elevated foetal and cord blood CD34+ and CD34+CD38− levels relative to full-term infants (most with a normal birth weight) (Shields and Andrews, 1998; Wyrsch et al, 1999).
It stood under/behind lime-wood (i.e. a shield), under a light-coloured/light-weight shield, :where those mighty women marshalled their powers, and they send shrieking spears.
Hence, in order to maintain the electromagnetic compatibility of the end product, light weight EMI shielding materials are required to sustain the good working environment of the devices.
Light-weight EMI shielding is needed to protect the environment and workplace from EMI due to unwanted electromagnetic waves, especially for the building containing power transformers and other electronic facilities, which will radiate electromagnetic wave to the environment.
Many MWCNTs/polymer composites in typical solutions or melt-based systems have been studied with various polymer matrix, including epoxy [14], shape memory polymer [15], poly methyl methacrylate) (PMMA) [16], polyurethane [13], for various applications such as effective and light-weight EMI shielding, microwave absorption, high charge storage capacitors.
One method by which the shield weight can be reduced significantly is to use what are called a "shadow shields" wherein shielding is implemented only in the direction of the crew habitat.
Other way in which the shield weight can be reduced is to incorporate multiple layers of different materials into the shield design where each layer serves to attenuate a different type of radiation.
'I think I use my weight as a shield to protect myself from getting hurt.
Weight is a shield and protector when the world feels too scary.
Volume and weight of the shielding walls were also reduced.
