Abstract: A microelectromechanical system (MEMS) structure and method of forming the MEMS device, including forming a first metallization structure over a complementary metal-oxide-semiconductor (CMOS) wafer, where the first metallization structure includes a first sacrificial oxide layer and a first metal contact pad. A second metallization structure is formed over a MEMS wafer, where the second metallization structure includes a second sacrificial oxide layer and a second metal contact pad. The first metallization structure and second metallization structure are then bonded together. After the first metallization structure and second metallization structure are bonded together, patterning and etching the MEMS wafer to form a MEMS element over the second sacrificial oxide layer. After the MEMS element is formed, removing the first sacrificial oxide layer and second sacrificial oxide layer to allow the MEMS element to move freely about an axis.

Abstract: A 2WD motorcycle of belly roll type mainly comprises a motorcycle as a body; a hydraulic pump is provided on the motorcycle, the hydraulic pump is connected to a hydraulic motor at a front wheel of the motorcycle through a high-pressure fuel feed hose to drive the front wheel; the motorcycle's belly is provided with a roller device comprised of a block and several rollers; a bottom of the block is upward concaved with a container portion, a top of the block has several locking portions, a side of the block is formed with several piercing holes piercing through two walls of the block; central axis at two sides of each roller is protruded with a roller axis; each roller is allowed in the container portion of the block and pierces through the piercing holes at two sides of the walls of the block according to the axis.

Abstract: A method and apparatus of increasing the amounts of raining in the desert, which is to settle a water-pumping station on the beach, said water-pumping station is connected with a plurality of water-storage region in the desert with the water delivery pipeline, by means of the water-pumping station to pump the seawater and transports it to each water storage region in the desert to make the seawater in the water storage region arise by the evaporation of the seawater by the sunshine, and to settle to salt land to generate more water and salts, next to utilize the glasshouse design which makes the seawater being transformed into the fresh water to acquire the fresh water, by means of such method and apparatus to increase the water contents of the air in the desert and to lessen the temperature in the desert, whereas the steam could be transformed onto the clouds after arising, thus further increase the chance of raining in the desert.

Abstract: A respirator includes a hollow body defining therein a fresh air body and an exhaust air body. The fresh air body includes a fresh air inlet and a first breathing pipe. The exhaust air chamber includes an exhaust air pipe and a second breathing pipe. A first piston is reciprocally received in the fresh air chamber and a second piston is reciprocally received in the exhaust air chamber so that fresh air is able to be forced to the mask and exhaust from the mask is able to be drawn from the mask and into the exhaust air chamber. A patient unable to breathe independently is forced to breathe by using the respirator.