A transformation restricting mechanism is configured to change a resisting force between a first connecting member, a second connecting member, and a caliper that are configured to be displaced relative to each other. Plural clients and plural servers are connected to a transmission control protocolInternet Protocol network on a LAN and the server allocates an IP address to each client by using a dynamic host configuration protocol at the servers. By way of example, a SWG reflective structure is disposed over a low index cavity region and above another reflective layer. Participants in the study install the process sampling modules on their end client computing devices. Thereafter, the model is compared with the terminal section and the set of signal parameters including the time offset estimates is refined to minimise the difference between the model and the terminal section.