Abstract: A memory device includes a memory array having a plurality of memory cells. Each memory cell of the plurality of memory cells is connected to a word line to apply a first signal to select the memory cell to read data from or write the data to the memory cell and a bit line to read the data from the memory cell or provide the data to write to the memory cell upon selecting the memory cell by the word line. A first bit line portion of the bit line connected to a first memory cell of the plurality of memory cells abuts a second bit line portion of the bit line connected to a second memory cell of the plurality of memory cells. The first memory cell is adjacent to the second memory cell.

Abstract: A cleaning robot includes a main body and a cleaning module. The main body is configured to move on a floor along a travelling direction. The cleaning module includes a first shaft and some first roller sets. The first shaft is connected with the main body. The first shaft extends along a first axis perpendicular to the travelling direction. The first roller sets are separated from each other. Each first roller set includes a first bearing, a first tire and a first flexible structure. The first shaft penetrates through the first bearing. The first tire includes a first cleaning surface configured to abut against the floor. The first flexible structure includes a first inner surface and a first outer surface. The first inner surface abuts against the first bearing. The first outer surface abuts against the first tire. The first flexible structure has a first elasticity.

Abstract: A system for creating the learning organizational tool known as a concept map to thereby facilitate learning includes a manipulation-sensing device with a wireless data transceiver, an information integration platform, and a data processing device. The wireless manipulating-sensing device allows users to physically manipulate the concept map and then transmit/receive data related to the results of the physical manipulation via a wireless network. The wireless manipulation-sensing device includes a plurality of conceptual modules for recording data in the process of learning a concept map, a plurality of connecting modules for recording data of the connection relations between the conceptual modules, and a plurality of connecting wires connected between the plurality of conceptual modules and the plurality of connecting modules to form connection relations therebetween.

Abstract: An interactive learning system includes a sensing network constituted by a plurality of sensing/transmitting modules, and a transmission network formed by the sensing network and a data processing device. The sensing/transmitting modules sense movements and vibrations thereof and interactive statuses between the sensing/transmitting modules and other sensing/transmitting modules, so as to generate messages that indicate the movements, the vibrations and the interactive statuses, and transmit the sensed messages to the data processing device by the transmission network, for interactive messages to be displayed through a human-machine interface of the data processing device. As such, learners' conceptions can be perceived and shown by the actual operations of the sensing/transmitting modules, which allows teachers to grasp learners' conceptions and thereby increase their interactions.

Abstract: A system for creating the learning organizational tool known as a concept map to thereby facilitate learning includes a manipulation-sensing device with a wireless data transceiver, an information integration platform, and a data processing device. The wireless manipulating-sensing device allows users to physically manipulate the concept map and then transmit/receive data related to the results of the physical manipulation via a wireless network. The wireless manipulation-sensing device includes a plurality of conceptual modules for recording data in the process of learning a concept map, a plurality of connecting modules for recording data of the connection relations between the conceptual modules, and a plurality of connecting wires connected between the plurality of conceptual modules and the plurality of connecting modules to form connection relations therebetween.