Abstract: A method of fastening a wall panel to a wall, according to one illustrative embodiment, comprises coupling a retaining body to a mounting body mounted on an outer surface of the wall adjacent a side edge of the wall panel. Coupling the retaining body to the mounting body may comprise coupling a first connector on an inner surface of the retaining body to a second connector on the mounting body, and positioning a retainer on the retaining body against a retaining surface on the wall panel to fasten the wall panel to the wall. Kits and wall assemblies according to other illustrative embodiments are also disclosed.

Abstract: An energy harvester for converting vibration energy into electrical energy and harvesting the electrical energy includes: a base; a clamping structure which is supported by the base and is spaced apart from the base; an elastic member which is disposed between the base and the clamping structure and allows the clamping structure to be elastically moved relative to the base; and a cantilever structure including a cantilever beam having one side fixed to the clamping structure and the other side which is elastically bendable, and a mass body disposed on the cantilever beam.

Abstract: A method of fastening a wall panel to a wall, according to one illustrative embodiment, comprises coupling a retaining body to a mounting body mounted on an outer surface of the wall adjacent a side edge of the wall panel. Coupling the retaining body to the mounting body may comprise coupling a first connector on an inner surface of the retaining body to a second connector on the mounting body, and positioning a retainer on the retaining body against a retaining surface on the wall panel to fasten the wall panel to the wall. Kits and wall assemblies according to other illustrative embodiments are also disclosed.

Abstract: A method of fastening a wall panel to a wall, according to one illustrative embodiment, comprises coupling a retaining body to a mounting body mounted on an outer surface of the wall adjacent a side edge of the wall panel. Coupling the retaining body to the mounting body may comprise coupling a first connector on an inner surface of the retaining body to a second connector on the mounting body, and positioning a retainer on the retaining body against a retaining surface on the wall panel to fasten the wall panel to the wall. Kits and wall assemblies according to other illustrative embodiments are also disclosed.

Abstract: An energy harvester for converting vibration energy into electrical energy and harvesting the electrical energy includes: a base; a clamping structure which is supported by the base and is spaced apart from the base; an elastic member which is disposed between the base and the clamping structure and allows the clamping structure to be elastically moved relative to the base; and a cantilever structure including a cantilever beam having one side fixed to the clamping structure and the other side which is elastically bendable, and a mass body disposed on the cantilever beam.

Abstract: A method of fastening a wall panel to a wall, according to one illustrative embodiment, comprises coupling a retaining body to a mounting body mounted on an outer surface of the wall adjacent a side edge of the wall panel. Coupling the retaining body to the mounting body may comprise coupling a first connector on an inner surface of the retaining body to a second connector on the mounting body, and positioning a retainer on the retaining body against a retaining surface on the wall panel to fasten the wall panel to the wall. Kits and wall assemblies according to other illustrative embodiments are also disclosed.

Abstract: A method of fastening a wall panel to a wall, according to one illustrative embodiment, comprises coupling a retaining body to a mounting body mounted on an outer surface of the wall adjacent a side edge of the wall panel. Coupling the retaining body to the mounting body may comprise coupling a first connector on an inner surface of the retaining body to a second connector on the mounting body, and positioning a retainer on the retaining body against a retaining surface on the wall panel to fasten the wall panel to the wall. Kits and wall assemblies according to other illustrative embodiments are also disclosed.

Abstract: Methods and apparatuses for determining the charge of a battery are disclosed. Embodiments include determining the charge in batteries that exhibit mass diffusion during charging or discharging, such as by evaluating the response of the battery to vibration. Alternate embodiments include evaluating the amplitude response of the battery and the phase shift response of the battery. Still other embodiment include evaluating the H11 response of the battery to vibration. Further embodiment include vibrating the battery, for example, with a chirp frequency that may be in the acoustic range. Still further embodiments include performing a Fourier analysis of the battery response to vibration.

Abstract: A method of fastening a wall panel to a wall, according to one illustrative embodiment, comprises coupling a retaining body to a mounting body mounted on an outer surface of the wall adjacent a side edge of the wall panel. Coupling the retaining body to the mounting body may comprise coupling a first connector on an inner surface of the retaining body to a second connector on the mounting body, and positioning a retainer on the retaining body against a retaining surface on the wall panel to fasten the wall panel to the wall. Kits and wall assemblies according to other illustrative embodiments are also disclosed.