A liquid product comprising dispersed perfumed capsules and a thickening system which is a combination of non-ionic with cationic polymers. Together with media packets encoded by a video encoder 1 and an audio encoder 2, a sender report packet generated by a sender report generation section 3 is sent to the transmission line. The disk drive further includes an airflow blocker coupled to the disk drive base for mitigation of disk rotation induced airflow upon the head stack assembly. A fractional knapsack problem is formulated to obtain optimal guaranteed time slot allocation with which a minimum bandwidth requirement is guaranteed for the sensor devices. Accordingly, it is possible to adjust the quality of a rendered image and the speed of generating the rendered image and to precisely render both a 3D object image and a 3D scenic image.