In some examples, an electromagnetic (EM) shielding file is described. The EM radiation shielding tile may include one or more of an EM radiation shielding fabric layer, a mu metal layer, and/or a microwave absorbing layer. In some cases, the EM radiation shielding tile may be configured to bond to clothing, electronic devices, or other objects to deflect and/or absorb electromagnetic field radiation.

This shielding body for shielding from geomagnetism and radiant heat comprises: a magnetic shield portion having a plate shape formed from a magnetic body; and a radiation shield portion formed as a film on at least one among outer and inner surfaces in the magnetic shield portion, and formed from a material having a greater heat conductivity than the magnetic body.

This shielding body for shielding from geomagnetism and radiant heat comprises: a magnetic shield portion having a plate shape formed from a magnetic body; and a radiation shield portion formed as a film on at least one among outer and inner surfaces in the magnetic shield portion, and formed from a material having a greater heat conductivity than the magnetic body.

An apparatus in the form of a multi-layered mat and of a multi-layered tile for protection against geopathic radiations in the electromagnetic frequencies (EMF) is provided, the apparatus comprising a combination of a plurality of layers: a first layer against high-frequency radiations, a second layer for blocking medium frequency radiations, a third layer for blocking medium to high frequency radiations, a fourth layer delivering pulsed electromagnetic frequencies (PEMF) and a fifth layer for capturing low level EMF. The apparatus may further comprise enveloping the layers with synthetic durable fabric and/or protecting fabric. The PEMF may be optional depending on daytime applications. The apparatus may further be in the form of a mattress. A method for assembling an apparatus comprising a combination of layers for protection against geopathic radiations is also provided.

An apparatus in the form of a multi-layered mat and of a multi-layered tile for protection against geopathic radiations in the electromagnetic frequencies (EMF) is provided, the apparatus comprising a combination of a plurality of layers: a first layer against high-frequency radiations, a second layer for blocking medium frequency radiations, a third layer for blocking medium to high frequency radiations, a fourth layer delivering pulsed electromagnetic frequencies (PEMF) and a fifth layer for capturing low level EMF. The apparatus may further comprise enveloping the layers with synthetic durable fabric and/or protecting fabric. The PEMF may be optional depending on daytime applications. The apparatus may further be in the form of a mattress. A method for assembling an apparatus comprising a combination of layers for protection against geopathic radiations is also provided.

A pressure detecting device that detects the combustion pressure in an internal combustion engine includes: a piezoelectric element that outputs a charge signal corresponding to the pressure in a combustion chamber; and a mounting board on which are mounted an integrating circuit that integrates the charge signal outputted by the piezoelectric element and an amplifier circuit that amplifies a voltage signal obtained by integration. On the mounting board are provided: a power receiving terminal that receives a power-supply voltage from a controller; an output terminal that outputs an output signal after amplification to the controller; and a grounding terminal for making the ground of the controller and the mounting board common. Furthermore, in the mounting board, the grounding terminal and grounding ends of the integrating circuit and the amplifier circuit are connected by way of grounding ferrite beads.

An electromagnetic interference (EMI) shielded device which includes an object to be shielded and an EMI shielding material encompassing the object. The EMI shielding material is made up of, but not limited to a broadband biopolymer or polymer dissolved in organic solvents, and metal and carbon-based nano-powders or nanoparticles. The specific makeup of the shielding material and fabrication procedure of the shielding material is also included herein.

A board includes a first magnetic conductive plate and a second magnetic conductive plate. The first magnetic conductive plate has a first magnetic conductive direction. The second magnetic conductive plate overlaps with the first magnetic conductive plate. The second magnetic conductive plate has a second magnetic conductive direction. The first magnetic conductive direction and the second magnetic conductive direction cross.

A board includes a first magnetic conductive plate and a second magnetic conductive plate. The first magnetic conductive plate has a first magnetic conductive direction. The second magnetic conductive plate overlaps with the first magnetic conductive plate. The second magnetic conductive plate has a second magnetic conductive direction. The first magnetic conductive direction and the second magnetic conductive direction cross.

This shielding body for shielding from geomagnetism and radiant heat comprises: a magnetic shield portion having a plate shape formed from a magnetic body; and a radiation shield portion formed as a film on at least one among outer and inner surfaces in the magnetic shield portion, and formed from a material having a greater heat conductivity than the magnetic body.