The present invention provides methods and compositions useful in localized transfer of genetic material or proteins. A first drive circuit is a low-voltage MOS transistor and turns on and off the switching element based on the control signal. Plasma pre-treatment and post-treatment steps are used to enhance the properties of the resulting coated products. Furthermore, accessibly offering the open pre-paid card for sale, in one exemplary embodiment, is performed by hanging the pre-paid card on a rack. When there are many user terminals and if the number of channelization codes are limited, namely, when the total number of channel codes used to distinguish the terminals is less than the total number of terminals, channelization code sharing per transmit antenna among multiple terminals is performed, such that the throughput of data that can be sent by using each channelization code is increased. Interpolation is also disclosed as well as models which imitate natural harmonics.